Snip 3.05 07 85 automation systems. Installation work


SNiP 3.05.07-85

BUILDING REGULATIONS

AUTOMATION SYSTEMS

Date of introduction 1986-07-01

DEVELOPED by the GPI Proektmontazhavtomatika of the USSR Ministry of Montazhspetsstroy (M.L. Vitebsky - topic leader, V.F. Valetov, R.S. Vinogradova, Y.V. Grigoriev, A.Ya. Minder, NN Pronin).

INTRODUCED by the USSR Ministry of Montazhspetsstroy.

PREPARED FOR APPROVAL by the Glavtekhnormirovanie Gosstroy of the USSR (B.A. Sokolov).

APPROVED by the Resolution of the USSR State Committee for Construction Affairs of October 18, 1985 No. 175.

AGREED with the Ministry of Health of the USSR (letter dated December 24, 1984, No. 122-12 / 1684-4), Gosgortekhnadzor of the USSR (letter dated February 6, 1985, No. 14-16 / 88).

With the introduction of SNiP 3.05.07-85 "Automation systems" SNiP III-34-74 "Automation system" will no longer be valid.

In SNiP 3.05.07-85 "Automation systems" amendment No. 1 was introduced, approved by the decree of the State Construction Committee of the USSR No. 93 of October 25, 1990 and entered into force on January 1, 1991. Items and tables that have been amended are noted in these Building codes and regulations are familiar.

These norms and rules apply to the production and acceptance of work on the installation and commissioning of automation systems (control, management and automatic regulation) of technological processes and engineering equipment for the construction of new, expansion, reconstruction and technical re-equipment of existing enterprises, buildings and structures of sectors of the national economy.

These rules do not apply to the installation of: automation systems for special facilities (nuclear plants, mines, enterprises for the production and storage of explosives, isotopes); railway transport signaling systems; communication and signaling systems; automatics of fire extinguishing and smoke removal systems; instruments using radioisotope measurement methods; devices and automation equipment built into machine tools, machines and other equipment supplied by manufacturers.

The rules establish requirements for the organization, production and acceptance of work on the installation of devices, automation equipment, boards, consoles, aggregate and computing complexes of automated process control systems (APCS), electrical and pipe wiring, etc., as well as for setting up mounted automation systems.

The rules must be followed by all organizations and enterprises involved in the design, installation and commissioning of automation systems.

1. GENERAL PROVISIONS

1.1. During the installation and commissioning of automation systems, the requirements of these rules, SNiP 3.01.01-85, SNiP III-3-81, SNiP III-4-80 and departmental regulatory documents approved in the manner prescribed by SNiP 1.01.01- 82 *.

1.2. Work on the installation of automation systems must be carried out in accordance with the approved design and estimate documentation, the work production project (PPR), as well as with the technical documentation of manufacturers.

1.3. Installation of instruments and automation equipment for the nodal construction method and the complete-block method of installation of technological equipment and pipelines, carried out in accordance with SNiP 3.05.05-84, should be carried out in the process of pre-assembly of technological lines, units and blocks.

1.4. The general contractor should involve the organization that carries out the installation of automation systems in the consideration of the construction organization project (PIC) in terms of performing installation work using complete-block and nodal methods, the layout of special rooms intended for automation systems (control rooms, operator rooms, control rooms, sensor rooms, etc.) p.), ahead of the time of their construction and transfer for installation.

1.5. When installing and setting up automation systems, documentation should be drawn up in accordance with the mandatory Appendix 1 of these rules.

1.6. The completion of the installation of automation systems is the completion of individual tests carried out in accordance with Sec. 4 of these rules, and the signing of the acceptance certificate for the assembled automation systems in the amount of working documentation.

2. PREPARATION FOR PRODUCTION OF INSTALLATION WORKS

General requirements

2.1. The installation of automation systems should be preceded by preparation in accordance with SNiP 3.01.01-85 and these rules.

2.2. As part of the general organizational and technical training, the following must be determined by the customer and agreed with the general contractor and the installation organization:

a) the conditions for completing the facility with instruments, automation equipment, products and materials supplied by the customer, providing for their delivery to the technological unit, node, line;

b) a list of devices, automation equipment, aggregate and computer complexes of the automated process control system, mounted with the involvement of the chief installation personnel of manufacturing enterprises;

c) the conditions for the transportation of switchboard blocks, consoles, group installations of devices, pipe blocks to the installation site.

2.3. When preparing the installation organization for the production of work, there should be:

a) working documentation received;

b) a project for the production of works has been developed and approved;

c) the acceptance of the construction and technological readiness of the facility for the installation of automation systems has been made;

d) the acceptance of equipment (instruments, automation equipment, panels, consoles, aggregate and computer complexes of the automated process control system), products and materials from the customer and the general contractor was made;

e) enlarged assembly of units and blocks was made;

f) the measures for labor protection and fire safety provided for by the rules and regulations have been carried out.

2.4. Before starting the installation of automation systems, the installation organization, together with the general contractor and the customer, must resolve the following issues:

a) advance deadlines have been established for the construction of special premises intended for automation systems, ensuring the timely conduct of individual tests of the technological lines, units and blocks being put into operation;

b) technological lines, assemblies, blocks and the timing of their transfer for individual tests have been determined after the installation of automation systems;

c) the necessary production workshops, household and office premises are provided, equipped with heating, lighting and a telephone;

d) it is envisaged to use the main construction machines at the disposal of the general contractor (vehicles, lifting and unloading machines and mechanisms, etc.) for moving large-sized units (blocks of panels, consoles, pipes, etc.) from the production bases of assembly organizations before installing them in the design position at the construction site;

f) permanent or temporary networks are provided for supplying electricity, water, compressed air to the facilities, with devices for connecting equipment and tools;

g) measures are provided in accordance with the project (working draft) to ensure the protection of instruments and automation equipment, panels, consoles, pipe and electrical wiring from the influence of precipitation, groundwater and low temperatures, from pollution and damage, and computer equipment - and from static electricity.

2.5. In the working documentation of automation systems accepted for the production of work, the installation organization must check the following:

a) interconnection with technological, electrical, plumbing and other working documentation;

b) bindings in working drawings of instruments and automation equipment supplied by manufacturing enterprises complete with technological equipment;

c) taking into account the requirements of high factory and assembly readiness of equipment, advanced methods of assembly work, maximum transfer of labor-intensive work to assembly and procurement workshops;

e) the presence of explosive or fire hazardous zones and their boundaries, categories, groups and names of explosive mixtures; places of installation of separating seals and their types;

f) availability of documentation for the installation and testing of pipe lines for pressures over 10 MPa (100 kgf / sq.cm).

2.6. Acceptance of construction and technological readiness for the installation of automation systems should be carried out in stages for individual complete parts of the facility (control rooms, operator rooms, technological blocks, nodes, lines, etc.).

2.7. The delivery of products and materials to the facility by the organization assembling the automation systems should be carried out, as a rule, with the help of containers.

Acceptance of the object for installation

2.8. Before the start of the installation of automation systems at the construction site, as well as in buildings and premises handed over for the installation of automation systems, construction work must be carried out, provided for by the working documentation and the project for the production of works.

In the building structures of buildings and structures (floors, ceilings, walls, equipment foundations), in accordance with the architectural and construction drawings, there must be:

centering axes and working elevation marks are applied:

channels, tunnels, niches, grooves, embedded pipes for hidden wiring, openings for the passage of pipe and electrical wiring with the installation of boxes, sleeves, nozzles, frames and other embedded structures in them;

platforms for servicing devices and automation equipment have been installed;

installation openings were left for moving large-sized units and blocks.

2.9. In special rooms intended for automation systems (see clause 1.4), as well as in production rooms in places intended for the installation of instruments and automation equipment, construction and finishing works must be completed, formwork, scaffolding and scaffolds must be disassembled, not required for the installation of automation systems, as well as garbage.

2.10. Special rooms intended for automation systems (see clause 1.4) must be equipped with heating, ventilation, lighting, and, if necessary, air conditioning, mounted according to a permanent scheme, have glazing and door locks. The premises must be kept at a temperature of at least 5 ° C.

After the delivery of these premises for the installation of automation systems, construction work and installation of sanitary systems are not allowed in them.

2.11. In the premises intended for the installation of technical means of aggregate and computer complexes of the automated process control system, in addition to the requirements of paragraphs. 2.9; 2.10, air conditioning systems must be installed and dust thoroughly removed.

Painting the premises with chalk whitewash is prohibited.

The windows should be provided with protective equipment from direct sunlight (blinds, curtains).

2.12. By the beginning of the installation of automation systems on technological, sanitary-technical and other types of equipment, pipelines must be installed:

embedded and protective structures for the installation of primary devices. Embedded structures for the installation of selective pressure, flow and level devices must end with shut-off valves;

devices and automation tools built into pipelines, air ducts and apparatus (orifices, volumetric and high-speed meters, rotameters, flow sensors of flow meters and concentrometers, level meters of all types, regulating bodies, etc.).

2.13. At the facility, in accordance with technological, plumbing, electrical and other working drawings, there should be:

main pipelines and distribution networks were laid with the installation of fittings for the selection of heat carriers to the heated devices of automation systems, as well as pipelines were laid for the removal of heat carriers;

equipment was installed and main and distribution networks were laid to provide instruments and means of automation with electricity and energy carriers (compressed air, gas, oil, steam, water, etc.), as well as pipelines were laid for the removal of energy carriers;

a sewerage network was laid to collect wastewater from drainage pipelines of automation systems;

the grounding network is made;

completed work on the installation of automatic fire extinguishing systems.

2.14. The grounding network for the technical means of the aggregate and computer complexes of the APCS must meet the requirements of the manufacturers of these technical means.

2.15. Acceptance of the object is formalized by an act of readiness of the object for the production of works on the installation of automation systems in accordance with the mandatory Appendix 1.

Transfer to the installation of equipment, products, materials and technical documentation

2.16. The transfer of equipment, products, materials and technical documentation for installation is carried out in accordance with the requirements of the Rules on Contracts for Capital Construction "approved by the Council of Ministers of the USSR and" Regulations on the relationship of organizations - general contractors with subcontractors "approved by the USSR State Construction Committee and the USSR State Planning Committee.

2.17. Accepted equipment, materials and products must comply with working documentation, state standards, technical specifications and have appropriate certificates, technical passports or other documents certifying their quality. Pipes, fittings and connections for oxygen piping must be degreased, which must be indicated in the documentation confirming this operation.

When accepting equipment, materials and products, the completeness, the absence of damage and defects, the safety of the paint and special coatings, the safety of the seals, the availability of special tools and devices supplied by the manufacturers are checked.

Details of pipe lines for pressure over 10 MPa (100 kgf / sq.cm) are transferred for installation in the form of products prepared for installation (pipes, fittings for them, fittings, hardware, fittings, etc.) or assembled into assembly units , completed according to the specification of the detail drawings. The pipe openings must be closed with plugs. Acts or other documents confirming the quality of welded joints in accordance with SNiP 3.05.05-84 must be transferred to products and assembly units with welded seams.

Elimination of equipment defects discovered during the acceptance process is carried out in accordance with the "Rules on Contracts for Capital Construction".

Clauses 2.18-2.20 are excluded.

3. PRODUCTION OF INSTALLATION WORKS

General requirements

3.1. The installation of automation systems should be carried out in accordance with the working documentation, taking into account the requirements of manufacturers of devices, automation equipment, aggregate and computing complexes, provided for by the technical conditions or instructions for the operation of this equipment.

Installation work should be carried out by an industrial method using small-scale mechanization, mechanized and electrified tools and devices that reduce the use of manual labor.

3.2. Installation of automation systems should be carried out in two stages (stages):

At the first stage, the following should be carried out: procurement of mounting structures, assemblies and blocks, electrical wiring elements and their enlarged assembly outside the installation area; checking the presence of embedded structures, openings, holes in building structures and building elements, embedded structures and selected devices on technological equipment and pipelines, the presence of a grounding network; laying pipes and blind boxes for hidden wiring into the foundations, walls, floors and ceilings; marking of routes and installation of supporting and supporting structures for electrical and pipe wiring, actuators, devices.

At the second stage, it is necessary to carry out: laying pipe and electrical wiring along the installed structures, installing shields, cabinets, consoles, devices and automation equipment, connecting pipe and electrical wiring to them, individual tests.

3.3. Assembled devices and automation equipment of the electrical branch of the State System of Instruments (GSP), boards and consoles, structures, electrical and pipe wiring to be grounded in accordance with the working documentation must be connected to the ground loop. If there are requirements of manufacturers, the means of aggregate and computing systems must be connected to a special grounding circuit.

Installation of structures

3.4. The marking of the installation sites of structures for instruments and automation equipment should be carried out in accordance with the working documentation.

When marking, the following requirements must be taken into account:

when installing structures, hidden wiring, strength and fire resistance of building structures (foundations) should not be disturbed;

the possibility of mechanical damage to the mounted instruments and automation equipment must be excluded.

3.5. The distance between the supporting structures on the horizontal and vertical sections of the route for laying pipe and electrical wiring, as well as pneumatic cables should be taken according to the working documentation.

3.6. Supporting structures must be parallel to each other, as well as parallel or perpendicular (depending on the type of structures) to building structures (foundations).

3.7. Structures for wall-mounted appliances must be perpendicular to the walls. Racks installed on the floor must be plumb or level. When two or more racks are installed side by side, they must be fastened together with detachable connections.

3.8. Installation of boxes and trays should be carried out in enlarged blocks assembled in assembly and procurement workshops.

3.9. Fastening boxes and trays to supporting structures and their connection to each other must be bolted or welded.

With a bolted connection, the tightness of the connection of boxes and trays with each other and with the supporting structures must be ensured, as well as the reliability of the electrical contact.

When connecting by welding, burn-through of boxes and trays is not allowed.

3.10. The location of the boxes after their installation should exclude the possibility of moisture accumulation in them.

3.11. At the intersection of sedimentary and expansion joints of buildings and structures, as well as on outdoor installations, ducts and trays must have compensating devices.

3.12. All structures must be painted in accordance with the instructions given in the working documentation.

3.13. Piping and electrical passages through walls (external or internal) and ceilings must be carried out in accordance with the working documentation.

Pipe wiring

3.14. These rules apply to the installation and testing of piping of automation systems (impulse, command, supply, heating, cooling, auxiliary and drainage according to the recommended Appendix 3) operating at an absolute pressure of 0.001 MPa (0.01 kgf / sq.cm) to 100 MPa (1000 kgf / sq. Cm).

The rules do not apply to the installation of pipe wiring inside shields and consoles.

3.15. Installation and testing of piping of automation systems must meet the requirements of SNiP 3.05.05-84 and this SNiP.

3.16. Equipment, fixtures, tooling, work methods used during the installation of pipe wiring must ensure the possibility of installing the following pipes and pneumatic cables:

steel water and gas pipelines in accordance with GOST 3262-75 ordinary and light with a nominal bore 8; 15; twenty; 25; 40 and 50 mm;

steel seamless cold-deformed in accordance with GOST 8734-75 with an outer diameter of 8; ten; fourteen; 16 and 22 mm with a wall thickness of at least 1 mm;

seamless cold- and heat-deformed corrosion-resistant steel in accordance with GOST 9941-81 with an outer diameter of 6; eight; ten; fourteen; 16 and 22 mm with a wall thickness of at least 1 mm. For pipe lines with a pressure of more than 10 MPa (100 kgf / sq. Cm), pipes with an outer diameter of 15 can be used; 25 and 35 mm;

copper in accordance with GOST 617-72 with an outer diameter of 6 and 8 mm with a wall thickness of at least 1 mm;

made of aluminum and aluminum alloys in accordance with GOST 18475-82 with an outer diameter of 6 and 8 mm with a wall thickness of at least 1 mm;

from polyethylene of low density (high pressure) according to the technical specifications of manufacturers with an outer diameter of 6 mm with a wall thickness of 1 mm and an outer diameter of 8 mm with a wall thickness of 1 and 1.6 mm;

pressure head made of polyethylene in accordance with GOST 18599-83, heavy with an outer diameter of 12; 20 and 25 mm;

polyvinyl chloride flexible according to the technical specifications of manufacturers with an inner diameter of 4 and 6 mm with a wall thickness of at least 1 mm;

rubber in accordance with GOST 5496-78 with an inner diameter of 8 mm with a wall thickness of 1.25 mm;

pneumatic and pneumo-electric with polyethylene tubes (pneumatic cables) according to the technical specifications of manufacturers (polyethylene tubes must have dimensions 6X1; 8X1 and 8X1.6 mm).

The choice of a specific range of pipes depending on the properties of the transported medium, the magnitude of the measured parameters, the types of transmitted signals and the distances between the connected devices should be carried out in accordance with the working documentation.

3.17. Piping wiring should be laid along the shortest distances between the connected devices, parallel to walls, ceilings and columns, as far as possible from technological units and electrical equipment, with a minimum number of turns and intersections, in places accessible for installation and maintenance, without sharp fluctuations in ambient temperature, not subject to extreme heat or cold, shock and vibration.

3.18. Piping wiring for all purposes should be laid at a distance that ensures ease of installation and operation.

In dusty rooms, piping should be laid in one layer at distances from walls and ceilings, allowing mechanical dust cleaning.

3.19. The total width of a group of horizontal and vertical pipe conduits, fixed on one structure, should be no more than 600 mm when servicing the conduit on one side and 1200 mm on both sides.

3.20. All piping, filled with an environment with a temperature of over 60 ° C, laid at a height of less than 2.5 m from the floor, must be fenced.

3.21. Piping conduits, with the exception of those filled with dry gas or air, must be laid with a slope to ensure condensate drain and gas (air) drainage, and have devices for their removal.

The direction and magnitude of the slopes must correspond to those specified in the working documentation, and in the absence of such instructions, the wiring must be laid with the following minimum slopes: impulse (see recommended Appendix 3) to manometers for all static pressures, diaphragm or pipe draft gauges, gas analyzers - 1:50; impulse to steam, liquid, air and gas flow meters, level regulators, drainage gravity oil lines of hydraulic jet regulators and drain lines (see recommended Appendix 3) - 1:10.

The slopes of the heating (see recommended appendix 3) piping must meet the requirements for heating systems. Piping lines requiring different slopes and fixed to common structures should be laid along the largest slope.

3.22. The working documentation should provide for measures to compensate for thermal elongation of pipe lines. For cases where the working documentation provides for self-compensation of temperature extensions of pipe lines at bends and bends, it should indicate at what distances from the bend (bend) the pipes should be fixed.

3.23. Metal pipe lines at the transition points through the expansion joints of buildings must have U-shaped expansion joints. Places of installation of expansion joints and their number should be indicated in the working documentation.

3.24. On sloped piping, U-shaped expansion joints, wefts and similar devices should be positioned so that they are the highest or lowest point in the piping and no air (gas) or condensate can accumulate in them.

3.25. The minimum height for laying external pipe wiring should be (in the light): in the impassable part of the territory, in places where people pass - 2.2 m; at intersections with highways - 5 m.

3.26. Installation of pipe wiring must ensure: strength and tightness of wiring, pipe connections between themselves and their connections to fittings, devices and automation equipment; reliable fastening of pipes to structures.

3.27. Fastening of pipe wiring to supporting and supporting structures should be carried out with normalized fasteners; fastening of pipe lines by welding is prohibited. The fastening must be carried out without compromising the integrity of the pipes.

3.28. It is not allowed to fix pipe lines on the outer side of switchboards, housings of devices and automation equipment.

It is allowed to fix pipe wiring on disassembled technological equipment at selected devices, but not more than at two points.

Fastening of pipe lines on non-disassembled technological equipment is allowed by agreement with the customer. Piping lines at the points of access to the equipment must have detachable connections.

3.29. The piping must be secured:

at a distance of no more than 200 mm from the branch parts (on each side);

on both sides of bends (pipe bends) at distances that provide self-compensation for thermal elongation of pipe lines;

on both sides of the fittings for settling and other vessels, if the fittings and vessels are not secured; if the length of the connecting line on either side of the vessel is less than 250 mm, the pipe is not attached to the supporting structure;

on both sides of the U-shaped expansion joints at a distance of 250 mm from their bend when installing expansion joints at the transition points of pipe lines through expansion joints in the walls.

3.30. Changing the direction of the piping should generally be done by bending the pipes accordingly. It is allowed to use standardized or normalized bent elements to change the direction of the pipe route.

3.31. Methods for bending pipes are selected by the installer.

Curved pipes must meet the following basic requirements:

a) there should be no folds, cracks, crumples, etc. on the bent part of the pipes;

b) the ovality of the pipe section at bending points is allowed no more than 10%.

3.32. The minimum radius of the internal bending curve of pipes should be:

for cold bent polyethylene pipes:

PNP - not less than 6D n, where D n is the outer diameter; PVP - not less than 10D n;

for hot bent polyethylene pipes - not less than 3D n;

for PVC plasticized pipes (flexible), bent in a cold state - not less than 3D n;

for pneumatic cables - not less than 10D n;

for steel pipes bent in a cold state - not less than 4D n, and bent in a hot state - not less than 3D n;

for annealed copper pipes bent in a cold state - not less than 2D n;

for annealed pipes made of aluminum and aluminum alloys when bending them in a cold state - not less than 3D n.

3.33. The connection of pipes during installation is allowed to be carried out both with one-piece and detachable connections. When connecting pipe lines, it is prohibited to eliminate gaps and misalignment of pipes by heating, stretching or bending the pipes.

3.34. The connection of pipe lines to embedded structures (see recommended Appendix 3) of technological equipment and pipelines, to all devices, automation equipment, switchboards and consoles should be carried out with detachable connections.

3.35. For detachable connections and pipe connections, normalized threaded connections must be used. In this case, for pipes made of stainless steel, aluminum and aluminum alloys, connecting parts specially designed for these pipes must be used.

3.36. It is forbidden to place pipe connections of any type: on expansion joints; on curved areas; in places of attachment to supporting and supporting structures; in passages through walls and ceilings of buildings and structures; in places inaccessible for maintenance during operation.

3.37. Pipe connections should be located at a distance of at least 200 mm from the attachment points.

3.38. When connecting pipes in group piping, the connections must be offset to allow the tool to work when installing or dismantling the pipe wiring.

In case of group laying by blocks, the distances between the detachable connections must be indicated in the working documentation, taking into account the block mounting technology.

3.39. Rubber pipes or pipes made of other elastic material connecting pipe lines with devices and automation equipment must be worn over the entire length of the connecting lugs; pipes must be laid without kinks, freely.

3.40. Fittings (valves, taps, gearboxes, etc.) installed on pipe lines made of copper, aluminum and plastic pipes must be rigidly fixed to structures.

3.41. All piping must be labeled. The markings applied to the tags must correspond to the marking of the pipe lines given in the working documentation.

3.42. The application of protective coatings should be carried out on a well-cleaned and degreased pipe surface. The color of the pipe wiring must be specified in the working documentation.

Steel pipes designed to protect pipe lines must be painted on the outside. Plastic pipes cannot be painted. Non-ferrous metal pipes are painted only in cases specified in the working documentation.

3.43. When installing plastic pipes and pneumatic cables, it is necessary to use a minimum number of connections, using the maximum construction length of pipes and pneumatic cables.

3.44. Plastic pipes and pneumatic cables should be laid over non-combustible structures and laid along them freely, without tension, taking into account the change in length due to temperature differences.

In places of contact with sharp edges of metal structures and fasteners, non-armored cables and plastic pipes must be protected with gaskets (rubber, polyvinyl chloride) protruding 5 mm on both sides of the edges of the supports and fastening brackets.

The fastening parts must be installed so as not to deform the cross-section of plastic pipes and pneumatic cables.

3.45. Compensation for temperature changes in the length of plastic pipe conduits should be ensured through the rational arrangement of movable (free) and fixed (rigid) fasteners and bent elements of the pipe conduit itself (bends, wefts, zip lines).

3.46. The arrangement of fixed mountings that do not allow the movement of the wiring in the axial direction should be done in such a way as to divide the route into sections, the temperature deformation of which occurs independently of one another and is self-compensating.

Fasteners should be fixed at junction boxes, cabinets, switchboards, etc., as well as in the middle of sections between two turns.

In all other cases where the movement of pipes and pneumatic cables in the axial direction is allowed, movable fasteners should be used.

3.47. Fastening plastic pipes and pneumatic cables when cornering is not allowed.

The pivot point for horizontal laying must lie on a flat, solid support. At a distance of 0.5-0.7 m from the top of the turn, plastic pipes and pneumatic cables must be fixed with movable fasteners.

3.48. Installation of plastic pipe wiring must be carried out, avoiding damage to the pipes (cuts, deep scratches, dents, melting, burn-through, etc.). Damaged pipe sections must be replaced.

3.49. Plastic pipes and pneumatic cables laid openly in places of possible mechanical stress at a height of up to 2.5 m from the floor must be protected from damage by metal casings, pipes or other devices. The design of protective devices must allow their free dismantling and maintenance of pipe lines.

Pipe sections up to 1 m long for devices, actuators and automation equipment installed on technological pipelines and apparatus may not be protected.

3.50. Outdoor plastic piping must be protected from direct sunlight.

3.51. Plastic pipes and pneumatic cables in boxes and trays laid horizontally must be laid loosely without fasteners. When laying in boxes and trays laid vertically, pipes and cables must be fixed at intervals of no more than 1 m.

In places where the route or branch turns, for all cases, laying the trays of pneumatic cables must be fixed in accordance with paragraph 3.47 of these rules.

In boxes, when laying plastic pipes and pneumatic cables, fireproof partitions with a fire resistance limit of at least 0.75 hours must be installed every 50 m.

As a rule, it is not allowed to lay armored pneumatic cables in ducts.

Pipes and cables from the box are led out through the holes in its wall or bottom. Plastic sleeves must be installed in the holes.

3.52. The distances between the places of attachment of plastic pipes or bundles of them should be no more than those indicated in table. 1.

3.53. Pipes made of plastic pipes, through which liquids or moist gases are transported, as well as plastic pipes at an ambient or filling temperature of 40 ° C and above, must be laid in horizontal sections on solid supporting structures, and in vertical sections the distance between fasteners should be reduced twice in comparison with those indicated in the table. 1.

Table 1

3.54. When connecting to devices, equipment and bulkhead connections (taking into account the permissible bending radii), plastic pipes must have a margin of at least 50 mm in case of possible damage during repeated reassembly of the connections.

3.55. When laying pneumatic cables on cable structures, the following conditions must be met:

pneumatic cables must be laid in one layer;

the sag arrow should be formed only under the action of the air cable's own weight and should not exceed 1% of the span length.

Mounting for horizontal laying should be carried out through one support.

3.56. When installing metal pipe wiring, it is allowed to use any welding methods that ensure high-quality connections, if the type or method of welding is not specified in the working documentation.

3.57. Welding of steel pipelines and quality control of welded joints should be carried out in accordance with SNiP 3.05.05-84.

3.58. The method and technological mode of pipe welding, materials for welding and the procedure for welding control should be adopted in accordance with the standard technological process for welding OST 36-57-81 and OST 36-39-80, approved by the USSR Ministry of Montazhspetsstroy. Types and structural elements of welded seams must comply with GOST 16037-80.

3.59. One-piece connection of copper pipes must be soldered in accordance with GOST 19249-73.

Quality control of soldered joints should be carried out by external inspection, as well as by hydraulic or pneumatic testing.

In appearance, the soldered seams should have a smooth surface. Sinks, captivity, sinks, foreign inclusions and non-siphons are not allowed.

3.60. Fastening of single metal piping should be done on each support.

Additional Installation Requirements for Oxygen Tubing

3.61. Oxygen piping installation work must be performed by personnel trained in the specific requirements for this work.

3.62. During the installation and welding of the pipeline, contamination of its inner surface with fats and oils must be excluded.

3.63. If it is necessary to degrease pipes, fittings and connections, it should be carried out according to the technology provided for in OST 26-04-312-83 (approved by the Minkhimmash), fire-safe solvents and detergents dissolved in water.

Pipes, fittings and connections intended for pipelines filled with oxygen must be provided with a document certifying that they have been degreased and are suitable for installation.

3.64. With threaded connections, it is forbidden to wind up flax, hemp, as well as smear with red lead and other materials containing oils and fats.

Additional requirements for the installation of pipe lines for pressure over 10 MPa (100 kgf / cm 2)

3.65. Prior to the commencement of work on the installation of pipe wiring over 10 MPa (100 kgf / sq.cm), responsible persons are appointed from among the engineering and technical workers, who are entrusted with the management and quality control of work on the installation of pipe wiring and paperwork.

Designated engineers and technicians must be certified after specialized training.

3.66. All elements of pipe lines for pressure over 10 MPa (100 kgf / cm 2) and welding materials supplied to the warehouse of the installation organization are subject to external inspection. At the same time, the availability and quality of the relevant documentation is also checked and an act is drawn up for the acceptance of pipes, fittings, pipeline parts, etc.

Clauses 3.67-3.74 are excluded.

3.75. When installing and setting up pipe wiring for automation systems filled with flammable and toxic liquids and gases, as well as pipe wiring at Рy ≤ 10 MPa (100 kgf / sq. Cm), one should be guided by the requirements of the regulatory documents given in the recommended Appendix 4.

Pipeline testing

3.76. Fully assembled pipe lines must be tested for strength and tightness in accordance with SNiP 3.05.05-84.

Type (strength, density), method (hydraulic, pneumatic), duration and assessment of test results should be taken in accordance with the working documentation.

3.77. The value of the test pressure (hydraulic and pneumatic) for strength and density in pipe lines (impulse, drainage, supply, heating, cooling, auxiliary and command hydraulic systems) in the absence of instructions in the working documentation should be taken in accordance with SNiP 3.05.05-84.

3.78. Command pipe lines filled with air at an operating pressure P p ≤ 0.14 MPa (1.4 kgf / sq. Cm) should be pneumatically tested for strength and density with a test pressure P pr = 0.3 MPa (3 kgf / sq. Cm). cm).

3.79. Pressure gauges used for testing must have:

accuracy class not less than 1.5;

case diameter not less than 160 mm;

measurement limits equal to 4/3 of the measured pressure.

3.80. Tests of plastic pipe lines and pneumatic cables should be carried out at a temperature of the test environment not exceeding 30 ° C.

3.81. Testing of plastic pipe lines is allowed to be carried out no earlier than 2 hours after the last pipe welding.

3.82. Before testing for strength and tightness, all pipe conduits, regardless of purpose, must be subjected to:

a) external examination in order to detect installation defects, conformity of their working documentation and readiness for testing;

b) purging, and if indicated in the working documentation - flushing.

3.83. Purging of pipe lines must be carried out with compressed air or inert gas, dried and free from oil and dust.

Pipelines for steam and water may be purged and flushed with a working medium.

3.84. The blowing of pipe lines should be carried out with a pressure equal to the working pressure, but not more than 0.6 MPa (6 kgf / sq. Cm).

If it is necessary to purge at a pressure of more than 0.6 MPa (6 kgf / cm2), purge should be performed in accordance with the instructions given in special schemes for purging process pipelines, agreed with the customer.

Blowing should be done within 10 minutes until clean air appears.

Blowing of pipe lines operating at an overpressure of up to 0.1 MPa (1 kgf / sq. Cm) or absolute pressure from 0.001 to 0.095 MPa (from 0.01 to 0.95 kgf / sq. Cm) should be carried out with air pressure not exceeding 0.1 MPa (1 kgf / cm 2).

3.85. Flushing of the piping should be carried out until there is a steady flow of clean water from the outlet or drain of the flushed tubing.

At the end of flushing, the piping must be completely free of water and, if necessary, blown out with compressed air.

3.86. After purging and flushing, piping should be plugged.

The design of the plugs should exclude the possibility of their breakdown at test pressures.

On pipe lines designed to operate at P p ≤ 10 MPa (100 kgf / sq. Cm), plugs or blind lenses with shanks must be installed.

3.87. The pipelines supplying the test fluid, air or inert gases from pumps, compressors, cylinders, etc. to the pipelines must be pre-tested with hydraulic pressure in the assembled state with shut-off valves and pressure gauges.

3.88. In hydraulic tests, water shall be used as the test fluid. The water temperature during the tests must be at least 5 ° C.

3.89. In pneumatic tests, air or an inert gas shall be used as the test medium. Air and inert gases must be free from moisture, oil and dust.

3.90. For hydraulic and pneumatic testing, the following pressure rise stages are recommended:

1st - 0.3 R pr;

2nd - 0.6 R pr;

3rd - up to P pr;

4th - decreases to P p [for pipe lines from P p to 0.2 MPa (2 kgf / sq.cm), only the 2nd stage is recommended]

The pressure on the 1st and 2nd stages is maintained for 1-3 minutes; during this time, according to the readings of the pressure gauge, there is no pressure drop in the pipework.

Test pressure (3rd stage) is maintained for 5 minutes.

On pipelines with a pressure of P p ≥ 10 MPa, the test pressure is maintained for 10-12 minutes.

Raising the pressure to the 3rd stage is a strength test.

Working pressure (4th stage) is maintained for the time required for final inspection and identification of defects. The 4th stage pressure is a density test.

3.91. Defects are eliminated after reducing the pressure in the piping to atmospheric.

After elimination of defects, the test is repeated.

3.92. Piping wiring is considered to be serviceable if no pressure drop occurred on the pressure gauge during the strength test and no leaks were found in the welds and joints during the subsequent tightness test.

At the end of the tests, an act must be drawn up.

3.93. Piping lines filled with flammable, toxic and liquefied gases (except for gas pipelines with pressures up to 0.1 MPa (1 kgf / sq. Cm), pipe lines filled with oxygen, as well as pipe lines for pressures exceeding 10 MPa (100 kgf / sq. Cm). cm), for an absolute pressure from 0.001 to 0.095 MPa (from 0.01 to 0.95 kgf / cm2) must be subjected to additional tests for density with the determination of the pressure drop.

3.94. Tubing should be flushed or purged prior to tightness testing of piping to determine the pressure drop.

3.95. For pipelines with a pressure of 10-100 MPa (100-1000 kgf / cm2), before density tests with the determination of the pressure drop on the pipe lines, safety valves must be installed, pre-adjusted to open at a pressure exceeding the operating pressure by 8%. Safety valves should be provided for in the working documentation.

3.96. The density test with the determination of the pressure drop is carried out with air or an inert gas with a test pressure equal to the working pressure (P pr = P p), except for pipelines for absolute pressure from 0.001 to 0.095 MPa (from 0.01 to 0.95 kgf / sq.cm) to be tested with the following pressure:

a) pipelines filled with flammable, toxic and liquefied gases - 0.1 MPa (1 kgf / sq.cm);

b) pipelines filled with conventional media - 0.2 MPa (2 kgf / sq.cm).

3.97. The duration of the additional density test and the holding time under test pressure is set in the working documentation, but should be at least for pipelines:

for pressure from 10 to 100 MPa (from 100 to 1000 kgf / cm2)

for flammable, toxic and liquefied gases

oxygen-filled

for absolute pressure from 0.001 to 0.095 MPa (from 0.01 to 0.95 kgf / cm2)

3.98. Pipelines are considered to have passed the test if the pressure drop in them does not exceed the values ​​indicated in table. 2.

table 2

Pipe wiring

Permissible pressure drop,% per hour, for working media

toxic flammable gases

other flammable gases

air and inert gases

For a pressure of 10-100 MPa (100-1000 kgf / sq.cm)

Flammable, toxic and liquefied gases

The specified standards apply to pipe lines with a nominal bore of 50 mm. When testing pipe lines with other nominal diameters, the rate of pressure drop in them is determined by the product of the above pressure drop values ​​by the coefficient calculated by the formula

where D y is the nominal bore of the tested pipe wiring, mm.

3.99. At the end of the density tests of pipe lines with the determination of the pressure drop during the test, an act must be drawn up.

3.100. When carrying out pneumatic tests, the safety requirements set forth in SNiP III-4-80 and "Rules for the construction and safe operation of pipelines for flammable, toxic and liquefied gases" (PUG-69) must be observed.

Electrical wiring

3.101. Installation of electrical wiring for automation systems (measurement, control, power, signaling circuits, etc.) with wires and control cables in boxes and on trays, in plastic and steel protective pipes, on cable structures, in cable structures and the ground; installation of electrical wiring in explosive and fire hazardous zones, installation of grounding (grounding) must meet the requirements of SNiP 3.05.06-85, taking into account the specific features of the installation of automation systems set forth in the manuals to the specified SNiP.

3.102. Connection of single-wire copper conductors of wires and cables with a cross section of 0.5 and 0.75 sq.mm and multi-wire copper conductors with a cross section of 0.35; 0.5; 0.75 sq. Mm to devices, apparatuses, clamp assemblies should, as a rule, be performed by soldering, if the design of their terminals allows this (non-separable contact connection).

If it is necessary to connect single-wire and stranded copper conductors of the indicated cross-sections to devices, devices and assemblies of terminals that have leads and clamps for connecting conductors under a screw or bolt (collapsible contact connection), the conductors of these wires and cables must be terminated with lugs.

Single-wire copper conductors of wires and cables with a cross section of 1; 1.5; 2.5; 4 mm2 should, as a rule, be connected directly under the screw or bolt, and stranded wires of the same cross-sections - with the help of lugs or directly under the screw or bolt. In this case, the cores of single-wire and multi-wire wires and cables, depending on the design of the terminals and clamps of devices, devices and clamp assemblies, are terminated with a ring or pin; the ends of the stranded conductors (rings, pins) must be soldered, the pin ends can be crimped with pin lugs.

If the design of leads and clamps of devices, devices, clamp assemblies requires or allows other methods of connecting single-wire and stranded copper conductors of wires and cables, the methods of connection specified in the relevant standards and specifications for these products should be used.

The connection of aluminum conductors of wires and cables with a cross-section of 2.0 sq. Mm and more to devices, apparatus, clamp assemblies should be carried out only with clamps that allow direct connection of aluminum conductors of the corresponding cross-sections to them.

The connection of single-wire conductors of wires and cables (under a screw or soldering) is allowed only to stationary elements of devices and apparatus.

The connection of conductors of wires and cables to devices, apparatuses and automation equipment that have output devices in the form of plug connectors should be carried out by means of multi-wire (flexible) copper wires or cables laid from clamp assemblies or junction boxes to instruments and automation equipment.

Collapsible and non-collapsible connections of copper, aluminum and copper-aluminum conductors of wires and cables with leads and clamps of devices, devices, clamp assemblies must be performed in accordance with the requirements of GOST 10434-82, GOST 25154-82, GOST 25705-83, GOST 19104-79 and GOST 23517-79.

3.103. The connection of steel protective pipes with each other, with broaching boxes, etc. in rooms of all classes should be carried out using standard threaded connections.

In rooms of all classes, except for explosive and fire hazardous zones, it is allowed to connect steel thin-walled protective pipes with sleeves made of sheet steel or steel pipes of larger diameter, followed by welding around the entire perimeter of the joints: in this case, burn-through of pipes is not allowed.

3.104. The assembled wiring of automation systems must be subjected to an external examination, which establishes the compliance of the mounted wiring with working documentation and the requirements of these rules. Wiring that meets the specified requirements must be tested for insulation resistance.

3.105. Measurement of the insulation resistance of electrical wiring of automation systems (measurement, control, power, signaling circuits, etc.) is carried out with a megohmmeter for a voltage of 500-1000 V. The insulation resistance should not be less than 0.5 MΩ.

When measuring insulation resistance, wires and cables must be connected to the terminal assemblies of panels, cabinets, consoles and junction boxes.

Devices, apparatus and wiring that do not allow testing with a megohmmeter with a voltage of 500-1000 V must be turned off during the test.

Based on the results of measuring the insulation resistance, an act is drawn up.

Shields, cabinets and consoles

3.106. Boards, cabinets and consoles must be handed over by the customer in a finished form for installation with equipment, fittings and installation products, with electrical and pipe internal wiring, prepared for connecting external electrical and pipe wiring and devices, as well as with fasteners for assembling and installing the boards, cabinets and consoles on site.

3.107. Separate boards, consoles and cabinets should be assembled into composite boards (operator, dispatch) of any configuration using detachable connections.

Fastening screw connections must be tightly and evenly tightened and secured against self-loosening.

3.108. Boards, cabinets and consoles should be installed on embedded structures. The exception is small-sized panels placed on walls and columns, and flat cabinets that do not require pre-installation of embedded structures for installation.

The main method of fixing the support frames of the panels to the embedded structures is one-piece, carried out by welding.

Boards, cabinets and consoles must be plumbed during installation and then fixed.

Installation of auxiliary elements (decorative panels, mnemonic diagrams, etc.) should be carried out while maintaining the center lines and verticality of the entire frontal plane of the shield. The angle of inclination of the mnemonic diagram specified in the working documentation must be maintained within the tolerances specified in it.

3.109. Inputs of electrical and pipe wiring into shields, cabinets and consoles must be carried out in accordance with OST 36.13-76, approved by the USSR Ministry of Montazhspetsstroy.

3.110. In order to increase the level of industrialization of installation work, as a rule, industrial automation premises should be used, including complete operator rooms (KOP) and complete sensor points (KPD). Industrial automation rooms should be delivered to the facility with mounted panels, cabinets, consoles, pipe and electrical wiring. The site should only carry out work on the connection of external piping and electrical wiring.

3.111. End seals and connections of pipe and electrical wiring introduced into shields, cabinets, consoles, KOP and KPD must be performed in accordance with the requirements of SNiP 3.05.06-85 and these rules.

Devices and automation equipment

3.112. The installation should accept devices and automation equipment, verified with the preparation of the appropriate protocols.

In order to ensure the safety of devices and equipment from breakdown, dismantling and theft, their installation must be carried out after the written permission of the general contractor (customer).

3.113. The inspection of instruments and automation equipment is carried out by the customer or specialized organizations involved by him, performing work on setting up instruments and automation equipment using the methods adopted in these organizations, taking into account the requirements of the instructions of the State Standard and manufacturers.

3.114. Instruments and automation equipment accepted for installation after verification must be prepared for delivery to the installation site. Moving systems must be locked, the connecting devices must be protected from moisture, dirt and dust.

Along with the devices and automation equipment, special tools, accessories and fasteners included in their kit, required for installation, must be handed over to the installer.

3.115. The placement of instruments and automation equipment and their mutual arrangement should be carried out according to the working documentation. Their installation should ensure the accuracy of measurements, free access to the devices and to their shut-off and adjustment devices (taps, valves, switches, adjustment knobs, etc.).

3.116. In places where devices and automation equipment are installed, which are inaccessible for installation and maintenance, the construction of stairs, wells and platforms must be completed before the start of installation in accordance with the working documentation.

3.117. Devices and automation equipment should be installed at ambient temperature and relative humidity specified in the manufacturer's installation and operating instructions.

3.118. Connection of external pipe wiring to the devices must be carried out in accordance with the requirements of GOST 25164-82 and GOST 25165-82, and electrical wiring in accordance with the requirements of GOST 10434-82, GOST 25154-82, GOST 25705-83, GOST 19104-79 and GOST 23517-79.

3.119. Fastening of instruments and automation equipment to metal structures (boards, cabinets, stands, etc.) should be carried out in the ways provided for by the design of instruments and automation equipment and the parts included in their set.

If fasteners are not included in the set of individual instruments and automation equipment, then they must be fixed with normalized fasteners.

In the presence of vibrations in the places where the devices are installed, the threaded fasteners must have devices that prevent their spontaneous unscrewing (spring washers, lock nuts, cotter pins, etc.).

3.120. The openings of instruments and automation equipment intended for connecting pipe and electrical wiring must remain plugged until the wiring is connected.

3.121. The cases of devices and automation equipment must be grounded in accordance with the requirements of the instructions of the manufacturers and SNiP 3.05.06-85.

3.122. Sensitive elements of liquid thermometers, thermal alarms, manometric thermometers, thermoelectric converters (thermocouples), resistance thermocouples should, as a rule, be located in the center of the measured medium flow. At a pressure over 6 MPa (60 kgf / cm 2) and a steam flow rate of 40 m / s and water flow rate of 5 m / s, the immersion depth of the sensitive elements into the medium being measured (from the inner wall of the pipeline) should be no more than 135 mm.

3.123. The working parts of the surface thermoelectric converters (thermocouples) and resistance thermocouples must fit tightly to the controlled surface.

Before installing these devices, the place of their contact with pipelines and equipment must be descaled and cleaned to a metallic sheen.

3.124. Thermoelectric converters (thermocouples) in porcelain fittings are allowed to be immersed in the high temperature zone for the length of the porcelain protective tube.

3.125. Thermometers with protective covers made of different metals must be immersed in the measured medium to a depth not exceeding that specified in the manufacturer's passport.

3.126. It is not allowed to lay the capillaries of manometric thermometers on surfaces whose temperature is higher or lower than the ambient air temperature.

If it is necessary to lay capillaries in places with hot or cold surfaces, there must be air gaps between the latter and the capillary to protect the capillary from heating or cooling, or appropriate thermal insulation must be laid.

Along the entire length of the gasket, the capillaries of manometric thermometers must be protected from mechanical damage.

If the length is excessive, the capillary must be rolled into a coil with a diameter of at least 300 mm; the bay must be tied in three places with non-metallic tie and securely fixed to the device.

3.127. Instruments for measuring the pressure of vapor or liquid, if possible, should be installed at the same level with the point of pressure tapping; if this requirement is impracticable, the working documentation should define a permanent correction to the readings of the device.

3.128. Liquid U-type gauges are installed strictly vertically. The liquid filling the pressure gauge must be free of contamination and free of air bubbles.

Spring pressure gauges (vacuum gauges) must be installed in a vertical position.

3.129. Separation vessels are installed in accordance with the codes or working drawings of the project, as a rule, near the points of impulse collection.

Separation vessels should be installed so that the control openings of the vessels are at the same level and can be easily serviced by the operating personnel.

3.130. For piezometric level measurement, the open end of the measuring tube must be set below the minimum measurable level. The gas or air pressure in the measuring tube must ensure the passage of gas (air) through the tube at the maximum liquid level. The gas or air flow rate in piezometric level gauges must be adjusted to a value that covers all losses, leaks and the required speed of the measuring system.

3.131. The installation of devices for physical and chemical analysis and their selection devices must be carried out in strict accordance with the requirements of the instructions of the manufacturers of devices.

3.132. When installing indicating and recording devices on the wall or on racks attached to the floor, the scale, diagram, shut-off valves, adjustment and control devices for pneumatic and other sensors should be at a height of 1-1.7 m, and the controls for shut-off valves - in one plane with the scale of the device.

3.133. Installation of aggregate and computer complexes of the APCS should be carried out according to the technical documentation of the manufacturers.

3.134. All instruments and automation equipment installed or built into technological devices and pipelines (orifice and selection devices, meters, rotameters, level gauge floats, direct-acting regulators, etc.) must be installed in accordance with the working documentation and with the requirements, specified in the mandatory appendix 5.

Optical cables

3.135. Before installing an optical cable, you should check its integrity and the attenuation coefficient of the optical signal.

3.136. The laying of optical cables is carried out in accordance with the working documentation by methods similar to those adopted for the laying of electrical and pipe wiring, as well as communication cables.

Optical cables are not allowed to be laid in the same tray, duct or pipe together with other types of wiring for automation systems.

Do not route single and double fiber cables over cable shelves.

It is forbidden to use ventilation ducts and shafts and escape routes for laying optical cable.

3.137. Optical cables laid openly in places of possible mechanical stress at a height of up to 2.5 m from the floor of the room or service areas must be protected by mechanical covers, pipes or other devices in accordance with the working documentation.

3.138. When pulling an optical cable, the fastening of the tension means should be carried out behind the power element, using tension limiters and anti-twist devices. The pulling forces must not exceed the values ​​specified in the cable specifications.

3.139. The optical cable should be laid under the climatic conditions specified in the cable specifications. Laying an optical cable at an air temperature below minus 15 ° C or a relative humidity of more than 80% is not allowed.

3.140. In the places where the optical cable is connected to the transceiver devices, as well as in the places where the couplings are installed, it is necessary to provide a supply of cable. The margin should be at least 2 m for each spliced ​​optical cable or transceiver device.

3.141. The optical cable should be fixed on supporting structures for vertical laying, as well as when laying directly on the surface of the walls of the premises - along the entire length after 1 m; when laying horizontally (except for ducts) - at turning points.

When cornering, the optical cable must be fastened on both sides of the corner at a distance equal to the permissible bending radius of the cable, but not less than 100 mm, counting from the apex of the corner. The turning radius of the optical cable must meet the requirements of the cable specifications.

When laying an optical cable on single supports, these supports must be installed no more than 1 m apart, and the cable must be fixed on each support.

3.142. The assembled optical cable should be monitored by measuring the attenuation of signals in individual fibers of the optical cable and checking it for integrity. The control results are documented by the protocol of measurements of the optical parameters of the mounted optical cable (see mandatory Appendix 1).

4. INDIVIDUAL TESTS

4.1. For acceptance by the working commission, automation systems are presented in the amount provided for by the working documentation, and that have passed individual tests.

4.2. In an individual test, you should check:

a) compliance of the installed automation systems with working documentation and the requirements of these rules;

b) pipe lines for strength and tightness;

c) insulation resistance of electrical wiring;

d) measurements of signal attenuation in individual fibers of the mounted optical cable according to special instructions.

4.3. When checking the installed systems for compliance with the working documentation, the compliance of the installation sites of devices and automation equipment, their types and technical characteristics with the equipment specification, compliance with the requirements of this SNiP and operational instructions for the installation methods of devices, automation equipment, switchboards and consoles, and other means of local APCS systems is checked, electrical and pipe wiring.

4.4. Testing pipe wiring for strength and density, as well as checking the insulation resistance of electrical wiring is carried out in accordance with Sec. 3.

4.5. After the completion of the individual testing, an acceptance certificate for the assembled automation systems is drawn up, to which documents on positions 4-12, 16, 21 of Appendix 1 are attached.

4.6. It is allowed to transfer installation work for adjustment by separate systems or separate parts of the complex (for example, dispatching and operator rooms, etc.). The delivery of the assembled automation systems is formalized by an act (see mandatory appendix 1).

Russian Federation Resolution of the USSR State Construction Committee

SNiP 3.05.07-85 Automation systems (with Amendment No. 1)

  • It is referenced by
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    SNiP 3.05.07-85

    BUILDING REGULATIONS

    AUTOMATION SYSTEMS

    Date of introduction 1986-07-01

    DEVELOPED by the GPI Proektmontazhavtomatika of the USSR Ministry of Montazhspetsstroy (M.L. Vitebsky - topic leader, V.F. Valetov, R.S. Vinogradova, Y.V. Grigoriev, A.Ya. Minder, NN Pronin).

    INTRODUCED by the USSR Ministry of Montazhspetsstroy.

    PREPARED FOR APPROVAL by the Glavtekhnormirovanie Gosstroy of the USSR (B.A. Sokolov).

    APPROVED by the resolution of the USSR State Committee for Construction Affairs of October 18, 1985 N 175.

    AGREED with the Ministry of Health of the USSR (letter dated December 24, 1984 No. 122-12 / 1684-4), Gosgortekhnadzor of the USSR (letter dated February 6, 1985 No. 14-16 / 88).

    With the introduction of SNiP 3.05.07-85 │Automation systems “SNiP III-34-74 Automation system” are no longer valid.

    In SNiP 3.05.07-85 "Automation systems" amendment No. 1 was introduced, approved by the decree of the State Construction Committee of the USSR No. 93 of October 25, 1990 and entered into force on January 1, 1991. Items and tables that have been amended are noted in these Building codes and regulations sign (K).

    Changes were made by the manufacturer of the database for BLS No. 2, 1991.

    These norms and rules apply to the production and acceptance of work on the installation and commissioning of automation systems (control, management and automatic regulation) of technological processes and engineering equipment for the construction of new, expansion, reconstruction and technical re-equipment of existing enterprises, buildings and structures of sectors of the national economy.

    These rules do not apply to the installation of: automation systems for special facilities (nuclear plants, mines, enterprises for the production and storage of explosives, isotopes); railway transport signaling systems; communication and signaling systems; automatics of fire extinguishing and smoke removal systems; instruments using radioisotope measurement methods; devices and automation equipment built into machine tools, machines and other equipment supplied by manufacturers.

    The rules establish requirements for the organization, production and acceptance of work on the installation of devices, automation equipment, boards, consoles, aggregate and computing complexes of automated process control systems (APCS), electrical and pipe wiring, etc., as well as for setting up mounted automation systems.

    The rules must be followed by all organizations and enterprises involved in the design, installation and commissioning of automation systems.

    1. GENERAL PROVISIONS

    1.1. During the installation and commissioning of automation systems, the requirements of these rules, SNiP 3.01.01-85, SNiP III-3-81, SNiP III-4-80 and departmental regulatory documents approved in the manner prescribed by SNiP 1.01.01- 82 *.

    1.2. Work on the installation of automation systems must be carried out in accordance with the approved design and estimate documentation, the work production project (PPR), as well as with the technical documentation of manufacturers.

    1.3. Installation of instruments and automation equipment for the nodal construction method and the complete-block method of installation of technological equipment and pipelines, carried out in accordance with SNiP 3.05.05-84, should be carried out in the process of large-scale assembly of technological lines, units and blocks.

    1.4. The general contractor should involve the organization that carries out the installation of automation systems in the consideration of the construction organization project (PIC) in terms of performing installation work using complete-block and nodal methods, the layout of special rooms intended for automation systems (control rooms, operator rooms, control rooms, sensor rooms, etc.) p.), ahead of the time of their construction and transfer for installation.

    1.5 (K). When installing and setting up automation systems, documentation should be drawn up in accordance with the mandatory Appendix 1 of these rules.

    1.6 (K). The completion of the installation of automation systems is the completion of individual tests carried out in accordance with Sec. 4 of these rules, and the signing of the acceptance certificate for the assembled automation systems in the amount of working documentation.

    2. PREPARATION FOR PRODUCTION OF INSTALLATION WORKS

    General requirements

    2.1. The installation of automation systems should be preceded by preparation in accordance with SNiP 3.01.01-85 and these rules.

    2.2. As part of the general organizational and technical training, the following must be determined by the customer and agreed with the general contractor and the installation organization:

    a) the conditions for completing the facility with instruments, automation equipment, products and materials supplied by the customer, providing for their delivery to the technological unit, node, line;

    b) a list of devices, automation equipment, aggregate and computer complexes of the automated process control system, mounted with the involvement of the chief installation personnel of manufacturing enterprises;

    c) the conditions for the transportation of switchboard blocks, consoles, group installations of devices, pipe blocks to the installation site.

    2.3. When preparing the installation organization for the production of work, there should be:

    a) working documentation received;

    b) a project for the production of works has been developed and approved;

    c) the acceptance of the construction and technological readiness of the facility for the installation of automation systems has been made;

    d) the acceptance of equipment (instruments, automation equipment, panels, consoles, aggregate and computer complexes of the automated process control system), products and materials from the customer and the general contractor was made;

    e) enlarged assembly of units and blocks was made;

    f) the measures for labor protection and fire safety provided for by the rules and regulations have been carried out.

    2.4. Before starting the installation of automation systems, the installation organization, together with the general contractor and the customer, must resolve the following issues:

    a) advance deadlines have been established for the construction of special premises intended for automation systems, ensuring the timely conduct of individual tests of the technological lines, units and blocks being put into operation;

    b) technological lines, assemblies, blocks and the timing of their transfer for individual tests have been determined after the installation of automation systems;

    c) the necessary production workshops, household and office premises are provided, equipped with heating, lighting and a telephone;

    d) it is envisaged to use the main construction machines at the disposal of the general contractor (vehicles, lifting and unloading machines and mechanisms, etc.) for moving large-sized units (blocks of panels, consoles, pipes, etc.) from the production bases of assembly organizations before installing them in the design position at the construction site;

    f) permanent or temporary networks are provided for supplying electricity, water, compressed air to the facilities, with devices for connecting equipment and tools;

    g) measures are provided in accordance with the project (working draft) to ensure the protection of instruments and automation equipment, panels, consoles, pipe and electrical wiring from the influence of precipitation, groundwater and low temperatures, from pollution and damage, and computer equipment - and from static electricity.

    2.5 (K). In the working documentation of automation systems accepted for the production of work, the installation organization must check the following:

    a) interconnection with technological, electrical, plumbing and other working documentation;

    b) bindings in working drawings of instruments and automation equipment supplied by manufacturing enterprises complete with technological equipment;

    c) taking into account the requirements of high factory and assembly readiness of equipment, advanced methods of assembly work, maximum transfer of labor-intensive work to assembly and procurement workshops;

    e) the presence of explosive or fire hazardous zones and their boundaries, categories, groups and names of explosive mixtures; places of installation of separating seals and their types;

    f) availability of documentation for the installation and testing of pipe lines for pressures over 10 MPa (100 kgf / sq.cm).

    2.6. Acceptance of construction and technological readiness for the installation of automation systems should be carried out in stages for individual complete parts of the facility (control rooms, operator rooms, technological blocks, nodes, lines, etc.).

    2.7. The delivery of products and materials to the facility by the organization assembling the automation systems should be carried out, as a rule, with the help of containers.

    Acceptance of the object for installation

    2.8. Before the start of the installation of automation systems at the construction site, as well as in buildings and premises handed over for the installation of automation systems, construction work must be carried out, provided for by the working documentation and the project for the production of works.

    In the building structures of buildings and structures (floors, ceilings, walls, equipment foundations), in accordance with the architectural and construction drawings, there must be:

    centering axes and working elevation marks are applied:

    channels, tunnels, niches, grooves, embedded pipes for hidden wiring, openings for the passage of pipe and electrical wiring with the installation of boxes, sleeves, nozzles, frames and other embedded structures in them;

    platforms for servicing devices and automation equipment have been installed;

    installation openings were left for moving large-sized units and blocks.

    2.9. In special rooms intended for automation systems (see clause 1.4), as well as in production rooms in places intended for the installation of instruments and automation equipment, construction and finishing works must be completed, formwork, scaffolding and scaffolds must be disassembled, not required for the installation of automation systems, as well as garbage.

    2.10. Special rooms intended for automation systems (see clause 1.4) must be equipped with heating, ventilation, lighting, and, if necessary, air conditioning, mounted according to a permanent scheme, have glazing and door locks. The premises must be kept at a temperature of at least 5 ° C.

    After the delivery of these premises for the installation of automation systems, construction work and installation of sanitary systems are not allowed in them.

    2.11. In the premises intended for the installation of technical means of aggregate and computer complexes of the automated process control system, in addition to the requirements of paragraphs. 2.9; 2.10, air conditioning systems must be installed and dust thoroughly removed.

    Painting the premises with chalk whitewash is prohibited.

    The windows should be provided with protective equipment from direct sunlight (blinds, curtains).

    2.12. By the beginning of the installation of automation systems on technological, sanitary-technical and other types of equipment, pipelines must be installed:

    embedded and protective structures for the installation of primary devices. Embedded structures for the installation of selective pressure, flow and level devices must end with shut-off valves;

    devices and automation tools built into pipelines, air ducts and apparatus (orifices, volumetric and high-speed meters, rotameters, flow sensors of flow meters and concentrometers, level meters of all types, regulating bodies, etc.).

    2.13. At the facility, in accordance with technological, plumbing, electrical and other working drawings, there should be:

    main pipelines and distribution networks were laid with the installation of fittings for the selection of heat carriers to the heated devices of automation systems, as well as pipelines were laid for the removal of heat carriers;

    equipment was installed and main and distribution networks were laid to provide instruments and means of automation with electricity and energy carriers (compressed air, gas, oil, steam, water, etc.), as well as pipelines were laid for the removal of energy carriers;

    a sewerage network was laid to collect wastewater from drainage pipelines of automation systems;

    the grounding network is made;

    completed work on the installation of automatic fire extinguishing systems.

    2.14. The grounding network for the technical means of the aggregate and computer complexes of the APCS must meet the requirements of the manufacturers of these technical means.

    2.15. Acceptance of the object is formalized by an act of readiness of the object for the production of works on the installation of automation systems in accordance with the mandatory Appendix 1.

    Transfer to the installation of equipment, products,
    materials and technical documentation

    2.16. The transfer of equipment, products, materials and technical documentation for installation is carried out in accordance with the requirements of the "Rules on Contracts for Capital Construction" approved by the Council of Ministers of the USSR and "Regulations on the relationship of organizations - general contractors with subcontractors" approved by the USSR State Construction Committee and the USSR State Planning Committee ...

    2.17 (K). Accepted equipment, materials and products must comply with working documentation, state standards, technical specifications and have appropriate certificates, technical passports or other documents certifying their quality. Pipes, fittings and connections for oxygen piping must be degreased, which must be indicated in the documentation confirming this operation.

    When accepting equipment, materials and products, the completeness, the absence of damage and defects, the safety of the paint and special coatings, the safety of the seals, the availability of special tools and devices supplied by the manufacturers are checked.

    Details of pipe lines for pressure over 10 MPa (100 kgf / sq.cm) are transferred for installation in the form of products prepared for installation (pipes, fittings for them, fittings, hardware, fittings, etc.) or assembled into assembly units , completed according to the specification of the detail drawings. The pipe openings must be closed with plugs. Acts or other documents confirming the quality of welded joints in accordance with SNiP 3.05.05-84 must be transferred to products and assembly units with welded seams.

    Elimination of equipment defects discovered during the acceptance process is carried out in accordance with the "Rules for Contracts for Capital Construction".

    (J) Clauses 2.18-2.20 are excluded.

    3. PRODUCTION OF INSTALLATION WORKS

    General requirements

    3.1. The installation of automation systems should be carried out in accordance with the working documentation, taking into account the requirements of manufacturers of devices, automation equipment, aggregate and computing complexes, provided for by the technical conditions or instructions for the operation of this equipment.

    Installation work should be carried out by an industrial method using small-scale mechanization, mechanized and electrified tools and devices that reduce the use of manual labor.

    3.2. Installation of automation systems should be carried out in two stages (stages):

    At the first stage, the following should be carried out: procurement of mounting structures, assemblies and blocks, electrical wiring elements and their enlarged assembly outside the installation area; checking the presence of embedded structures, openings, holes in building structures and building elements, embedded structures and selected devices on technological equipment and pipelines, the presence of a grounding network; laying pipes and blind boxes for hidden wiring into the foundations, walls, floors and ceilings; marking of routes and installation of supporting and supporting structures for electrical and pipe wiring, actuators, devices.

    At the second stage, it is necessary to carry out: laying pipe and electrical wiring along the installed structures, installing shields, cabinets, consoles, devices and automation equipment, connecting pipe and electrical wiring to them, individual tests.

    3.3. Assembled devices and automation equipment of the electrical branch of the State System of Instruments (GSP), boards and consoles, structures, electrical and pipe wiring to be grounded in accordance with the working documentation must be connected to the ground loop. If there are requirements of manufacturers, the means of aggregate and computing systems must be connected to a special grounding circuit.

    Installation of structures

    3.4. The marking of the installation sites of structures for instruments and automation equipment should be carried out in accordance with the working documentation.

    When marking, the following requirements must be taken into account:

    when installing structures, hidden wiring, strength and fire resistance of building structures (foundations) should not be disturbed;

    the possibility of mechanical damage to the mounted instruments and automation equipment must be excluded.

    3.5. The distance between the supporting structures on the horizontal and vertical sections of the route for laying pipe and electrical wiring, as well as pneumatic cables should be taken according to the working documentation.

    3.6. Supporting structures must be parallel to each other, as well as parallel or perpendicular (depending on the type of structures) to building structures (foundations).

    3.7. Structures for wall-mounted appliances must be perpendicular to the walls. Racks installed on the floor must be plumb or level. When two or more racks are installed side by side, they must be fastened together with detachable connections.

    3.8. Installation of boxes and trays should be carried out in enlarged blocks assembled in assembly and procurement workshops.

    3.9. Fastening boxes and trays to supporting structures and their connection to each other must be bolted or welded.

    With a bolted connection, the tightness of the connection of boxes and trays with each other and with the supporting structures must be ensured, as well as the reliability of the electrical contact.

    When connecting by welding, burn-through of boxes and trays is not allowed.

    3.10. The location of the boxes after their installation should exclude the possibility of moisture accumulation in them.

    3.11. At the intersection of sedimentary and expansion joints of buildings and structures, as well as on outdoor installations, ducts and trays must have compensating devices.

    3.12. All structures must be painted in accordance with the instructions given in the working documentation.

    3.13. Piping and electrical passages through walls (external or internal) and ceilings must be carried out in accordance with the working documentation.

    Pipe wiring

    3.14. These rules apply to the installation and testing of piping of automation systems (impulse, command, supply, heating, cooling, auxiliary and drainage according to the recommended Appendix 3) operating at an absolute pressure of 0.001 MPa (0.01 kgf / sq.cm) to 100 MPa (1000 kgf / sq. Cm).

    The rules do not apply to the installation of pipe wiring inside shields and consoles.

    3.15. Installation and testing of piping of automation systems must meet the requirements of SNiP 3.05.05-84 and this SNiP.

    3.16. Equipment, fixtures, tooling, work methods used during the installation of pipe wiring must ensure the possibility of installing the following pipes and pneumatic cables:

    steel water and gas pipelines in accordance with GOST 3262-75 ordinary and light with a nominal bore 8; 15; twenty; 25; 40 and 50 mm;

    steel seamless cold-deformed in accordance with GOST 8734-75 with an outer diameter of 8; ten; fourteen; 16 and 22 mm with a wall thickness of at least 1 mm;

    seamless cold- and heat-deformed corrosion-resistant steel in accordance with GOST 9941-81 with an outer diameter of 6; eight; ten; fourteen; 16 and 22 mm with a wall thickness of at least 1 mm. For pipe lines with a pressure of more than 10 MPa (100 kgf / sq. Cm), pipes with an outer diameter of 15 can be used; 25 and 35 mm;

    copper in accordance with GOST 617-72 with an outer diameter of 6 and 8 mm with a wall thickness of at least 1 mm;

    made of aluminum and aluminum alloys in accordance with GOST 18475-82 with an outer diameter of 6 and 8 mm with a wall thickness of at least 1 mm;

    from polyethylene of low density (high pressure) according to the technical specifications of manufacturers with an outer diameter of 6 mm with a wall thickness of 1 mm and an outer diameter of 8 mm with a wall thickness of 1 and 1.6 mm;

    pressure head made of polyethylene in accordance with GOST 18599-83, heavy with an outer diameter of 12; 20 and 25 mm;

    polyvinyl chloride flexible according to the technical specifications of manufacturers with an inner diameter of 4 and 6 mm with a wall thickness of at least 1 mm;

    rubber in accordance with GOST 5496-78 with an inner diameter of 8 mm with a wall thickness of 1.25 mm;

    pneumatic and pneumo-electric with polyethylene tubes (pneumatic cables) according to the technical specifications of manufacturers (polyethylene tubes must have dimensions 6X1; 8X1 and 8X1.6 mm).

    The choice of a specific range of pipes depending on the properties of the transported medium, the magnitude of the measured parameters, the types of transmitted signals and the distances between the connected devices should be carried out in accordance with the working documentation.

    3.17. Piping wiring should be laid along the shortest distances between the connected devices, parallel to walls, ceilings and columns, as far as possible from technological units and electrical equipment, with a minimum number of turns and intersections, in places accessible for installation and maintenance, without sharp fluctuations in ambient temperature, not subject to extreme heat or cold, shock and vibration.

    3.18. Piping wiring for all purposes should be laid at a distance that ensures ease of installation and operation.

    In dusty rooms, piping should be laid in one layer at distances from walls and ceilings, allowing mechanical dust cleaning.

    3.19. The total width of a group of horizontal and vertical pipe conduits, fixed on one structure, should be no more than 600 mm when servicing the conduit on one side and 1200 mm on both sides.

    3.20. All piping, filled with an environment with a temperature of over 60 ° C, laid at a height of less than 2.5 m from the floor, must be fenced.

    3.21. Piping conduits, with the exception of those filled with dry gas or air, must be laid with a slope to ensure condensate drain and gas (air) drainage, and have devices for their removal.

    The direction and magnitude of the slopes must correspond to those specified in the working documentation, and in the absence of such instructions, the wiring must be laid with the following minimum slopes: impulse (see recommended Appendix 3) to manometers for all static pressures, diaphragm or pipe draft gauges, gas analyzers - 1:50; impulse to steam, liquid, air and gas flow meters, level regulators, drainage gravity oil lines of hydraulic jet regulators and drain lines (see recommended Appendix 3) - 1:10.

    The slopes of the heating (see recommended appendix 3) piping must meet the requirements for heating systems. Piping lines requiring different slopes and fixed to common structures should be laid along the largest slope.

    3.22. The working documentation should provide for measures to compensate for thermal elongation of pipe lines. For cases where the working documentation provides for self-compensation of temperature extensions of pipe lines at bends and bends, it should indicate at what distances from the bend (bend) the pipes should be fixed.

    3.23. Metal pipe lines at the transition points through the expansion joints of buildings must have U-shaped expansion joints. Places of installation of expansion joints and their number should be indicated in the working documentation.

    3.24. On pipelines laid with a slope, U-shaped expansion joints, wefts "and similar devices should be located so that they are the highest or lowest point of the pipework and exclude the possibility of accumulation of air (gas) or condensate in them.

    3.25. The minimum height for laying external pipe wiring should be (in the light): in the impassable part of the territory, in places where people pass - 2.2 m; at intersections with highways - 5 m.

    3.26. Installation of pipe wiring must ensure: strength and tightness of wiring, pipe connections between themselves and their connections to fittings, devices and automation equipment; reliable fastening of pipes to structures.

    3.27. Fastening of pipe wiring to supporting and supporting structures should be carried out with normalized fasteners; fastening of pipe lines by welding is prohibited. The fastening must be carried out without compromising the integrity of the pipes.

    3.28. It is not allowed to fix pipe lines on the outer side of switchboards, housings of devices and automation equipment.

    It is allowed to fix pipe wiring on disassembled technological equipment at selected devices, but not more than at two points.

    Fastening of pipe lines on non-disassembled technological equipment is allowed by agreement with the customer. Piping lines at the points of access to the equipment must have detachable connections.

    3.29. The piping must be secured:

    at a distance of no more than 200 mm from the branch parts (on each side);

    on both sides of bends (pipe bends) at distances that provide self-compensation for thermal elongation of pipe lines;

    on both sides of the fittings for settling and other vessels, if the fittings and vessels are not secured; if the length of the connecting line on either side of the vessel is less than 250 mm, the pipe is not attached to the supporting structure;

    on both sides of the U-shaped expansion joints at a distance of 250 mm from their bend when installing expansion joints at the transition points of pipe lines through expansion joints in the walls.

    3.30. Changing the direction of the piping should generally be done by bending the pipes accordingly. It is allowed to use standardized or normalized bent elements to change the direction of the pipe route.

    3.31. Methods for bending pipes are selected by the installer.

    Curved pipes must meet the following basic requirements:

    a) there should be no folds, cracks, crumples, etc. on the bent part of the pipes;

    b) the ovality of the pipe section at bending points is allowed no more than 10%.

    3.32. The minimum radius of the internal bending curve of pipes should be:

    for cold bent polyethylene pipes:

    PNP - not less than 6Dн, where Dн - outer diameter; PVP - not less than 10Dn;

    for hot bent polyethylene pipes - not less than 3Dn;

    for PVC plasticized pipes (flexible), cold bent - not less than 3Dn;

    for pneumatic cables - not less than 10 DN;

    for steel pipes bent in a cold state - not less than 4Dn, and bent in a hot state - not less than 3Dn;

    for annealed copper pipes bent in a cold state - not less than 2Dn;

    for annealed pipes made of aluminum and aluminum alloys when bending them in a cold state - not less than 3Dn.

    3.33. The connection of pipes during installation is allowed to be carried out both with one-piece and detachable connections. When connecting pipe lines, it is prohibited to eliminate gaps and misalignment of pipes by heating, stretching or bending the pipes.

    3.34. The connection of pipe lines to embedded structures (see recommended Appendix 3) of technological equipment and pipelines, to all devices, automation equipment, switchboards and consoles should be carried out with detachable connections.

    3.35. For detachable connections and pipe connections, normalized threaded connections must be used. In this case, for pipes made of stainless steel, aluminum and aluminum alloys, connecting parts specially designed for these pipes must be used.

    3.36. It is forbidden to place pipe connections of any type: on expansion joints; on curved areas; in places of attachment to supporting and supporting structures; in passages through walls and ceilings of buildings and structures; in places inaccessible for maintenance during operation.

    3.37. Pipe connections should be located at a distance of at least 200 mm from the attachment points.

    3.38. When connecting pipes in group piping, the connections must be offset to allow the tool to work when installing or dismantling the pipe wiring.

    In case of group laying by blocks, the distances between the detachable connections must be indicated in the working documentation, taking into account the block mounting technology.

    3.39. Rubber pipes or pipes made of other elastic material connecting pipe lines with devices and automation equipment must be worn over the entire length of the connecting lugs; pipes must be laid without kinks, freely.

    3.40. Fittings (valves, taps, gearboxes, etc.) installed on pipe lines made of copper, aluminum and plastic pipes must be rigidly fixed to structures.

    3.41. All piping must be labeled. The markings applied to the tags must correspond to the marking of the pipe lines given in the working documentation.

    3.42. The application of protective coatings should be carried out on a well-cleaned and degreased pipe surface. The color of the pipe wiring must be specified in the working documentation.

    Steel pipes designed to protect pipe lines must be painted on the outside. Plastic pipes cannot be painted. Non-ferrous metal pipes are painted only in cases specified in the working documentation.

    3.43. When installing plastic pipes and pneumatic cables, it is necessary to use a minimum number of connections, using the maximum construction length of pipes and pneumatic cables.

    3.44. Plastic pipes and pneumatic cables should be laid over non-combustible structures and laid along them freely, without tension, taking into account the change in length due to temperature differences.

    In places of contact with sharp edges of metal structures and fasteners, non-armored cables and plastic pipes must be protected with gaskets (rubber, polyvinyl chloride) protruding 5 mm on both sides of the edges of the supports and fastening brackets.

    The fastening parts must be installed so as not to deform the cross-section of plastic pipes and pneumatic cables.

    3.45. Compensation for temperature changes in the length of plastic pipe conduits should be ensured through the rational arrangement of movable (free) and fixed (rigid) fasteners and curved elements of the pipe conduit itself (bends, wefts, gasket “snake”).

    3.46. The arrangement of fixed mountings that do not allow the movement of the wiring in the axial direction should be done in such a way as to divide the route into sections, the temperature deformation of which occurs independently of one another and is self-compensating.

    Fasteners should be fixed at junction boxes, cabinets, switchboards, etc., as well as in the middle of sections between two turns.

    In all other cases where the movement of pipes and pneumatic cables in the axial direction is allowed, movable fasteners should be used.

    3.47. Fastening plastic pipes and pneumatic cables when cornering is not allowed.

    The pivot point for horizontal laying must lie on a flat, solid support. At a distance of 0.5-0.7 m from the top of the turn, plastic pipes and pneumatic cables must be fixed with movable fasteners.

    3.48. Installation of plastic pipe wiring must be carried out, avoiding damage to the pipes (cuts, deep scratches, dents, melting, burn-through, etc.). Damaged pipe sections must be replaced.

    3.49. Plastic pipes and pneumatic cables laid openly in places of possible mechanical stress at a height of up to 2.5 m from the floor must be protected from damage by metal casings, pipes or other devices. The design of protective devices must allow their free dismantling and maintenance of pipe lines.

    Pipe sections up to 1 m long for devices, actuators and automation equipment installed on technological pipelines and apparatus may not be protected.

    3.50. Outdoor plastic piping must be protected from direct sunlight.

    3.51 (K). Plastic pipes and pneumatic cables in boxes and trays laid horizontally must be laid loosely without fasteners. When laying in boxes and trays laid vertically, pipes and cables must be fixed at intervals of no more than 1 m.

    In places where the route or branch turns, for all cases, laying the trays of pneumatic cables must be fixed in accordance with paragraph 3.47 of these rules.

    In boxes, when laying plastic pipes and pneumatic cables, fireproof partitions with a fire resistance limit of at least 0.75 hours must be installed every 50 m.

    As a rule, it is not allowed to lay armored pneumatic cables in ducts.

    Pipes and cables from the box are led out through the holes in its wall or bottom. Plastic sleeves must be installed in the holes.

    3.52. The distances between the places of attachment of plastic pipes or bundles of them should be no more than those indicated in table. 1.

    3.53. Pipes made of plastic pipes, through which liquids or moist gases are transported, as well as plastic pipes at an ambient or filling temperature of 40 ° C and above, must be laid in horizontal sections on solid supporting structures, and in vertical sections the distance between fasteners should be reduced twice in comparison with those indicated in the table. 1.

    Table 1

    3.54. When connecting to devices, equipment and bulkhead connections (taking into account the permissible bending radii), plastic pipes must have a margin of at least 50 mm in case of possible damage during repeated reassembly of the connections.

    3.55. When laying pneumatic cables on cable structures, the following conditions must be met:

    pneumatic cables must be laid in one layer;

    the sag arrow should be formed only under the action of the air cable's own weight and should not exceed 1% of the span length.

    Mounting for horizontal laying should be carried out through one support.

    3.56. When installing metal pipe wiring, it is allowed to use any welding methods that ensure high-quality connections, if the type or method of welding is not specified in the working documentation.

    3.57. Welding of steel pipelines and quality control of welded joints should be carried out in accordance with SNiP 3.05.05-84.

    3.58. The method and technological mode of pipe welding, materials for welding and the procedure for welding control should be adopted in accordance with the standard technological process for welding OST 36-57-81 and OST 36-39-80, approved by the USSR Ministry of Montazhspetsstroy. Types and structural elements of welded seams must comply with GOST 16037-80.

    3.59. One-piece connection of copper pipes must be soldered in accordance with GOST 19249-73.

    Quality control of soldered joints should be carried out by external inspection, as well as by hydraulic or pneumatic testing.

    In appearance, the soldered seams should have a smooth surface. Sinks, captivity, sinks, foreign inclusions and non-siphons are not allowed.

    3.60. Fastening of single metal piping should be done on each support.

    Additional installation requirements
    oxygen piping

    3.61. Oxygen piping installation work must be performed by personnel trained in the specific requirements for this work.

    3.62. During the installation and welding of the pipeline, contamination of its inner surface with fats and oils must be excluded.

    3.63. If it is necessary to degrease pipes, fittings and connections, it should be carried out according to the technology provided for in OST 26-04-312-83 (approved by the Minkhimmash), fire-safe solvents and detergents dissolved in water.

    Pipes, fittings and connections intended for pipelines filled with oxygen must be provided with a document certifying that they have been degreased and are suitable for installation.

    3.64. With threaded connections, it is forbidden to wind up flax, hemp, as well as smear with red lead and other materials containing oils and fats.

    Additional requirements for the installation of piping
    for pressure over 10 MPa (100 kgf / sq. cm)

    3.65 (K). Prior to the commencement of work on the installation of pipe wiring over 10 MPa (100 kgf / sq.cm), responsible persons are appointed from among the engineering and technical workers, who are entrusted with the management and quality control of work on the installation of pipe wiring and paperwork.

    Designated engineers and technicians must be certified after specialized training.

    3.66. All elements of pipe lines for pressure over 10 MPa (100 kgf / cm 2) and welding materials supplied to the warehouse of the installation organization are subject to external inspection. At the same time, the availability and quality of the relevant documentation is also checked and an act is drawn up for the acceptance of pipes, fittings, pipeline parts, etc.

    (J) Clauses 3.67-3.74 are deleted.

    3.75. When installing and setting up pipe wiring for automation systems filled with flammable and toxic liquids and gases, as well as pipe wiring at Рy> / = 10 MPa (100 kgf / sq. Cm), one should be guided by the requirements of the regulatory documents given in the recommended Appendix 4.

    Pipeline testing

    3.76. Fully assembled pipe lines must be tested for strength and tightness in accordance with SNiP 3.05.05-84.

    Type (strength, density), method (hydraulic, pneumatic), duration and assessment of test results should be taken in accordance with the working documentation.

    3.77. The value of the test pressure (hydraulic and pneumatic) for strength and density in pipe lines (impulse, drainage, supply, heating, cooling, auxiliary and command hydraulic systems) in the absence of instructions in the working documentation should be taken in accordance with SNiP 3.05.05-84.

    3.78. Command piping, filled with air at operating pressure Pp

    3.79. Pressure gauges used for testing must have:

    accuracy class not less than 1.5;

    case diameter not less than 160 mm;

    measurement limits equal to 4/3 of the measured pressure.

    3.80. Tests of plastic pipe lines and pneumatic cables should be carried out at a temperature of the test environment not exceeding 30 ° C.

    3.81. Testing of plastic pipe lines is allowed to be carried out no earlier than 2 hours after the last pipe welding.

    3.82. Before testing for strength and tightness, all pipe conduits, regardless of purpose, must be subjected to:

    a) external examination in order to detect installation defects, conformity of their working documentation and readiness for testing;

    b) purging, and if indicated in the working documentation - flushing.

    3.83. Purging of pipe lines must be carried out with compressed air or inert gas, dried and free from oil and dust.

    Pipelines for steam and water may be purged and flushed with a working medium.

    3.84. The blowing of pipe lines should be carried out with a pressure equal to the working pressure, but not more than 0.6 MPa (6 kgf / sq. Cm).

    If it is necessary to purge at a pressure of more than 0.6 MPa (6 kgf / cm2), purge should be performed in accordance with the instructions given in special schemes for purging process pipelines, agreed with the customer.

    Blowing should be done within 10 minutes until clean air appears.

    Blowing of pipe lines operating at an overpressure of up to 0.1 MPa (1 kgf / sq. Cm) or absolute pressure from 0.001 to 0.095 MPa (from 0.01 to 0.95 kgf / sq. Cm) should be carried out with air pressure not exceeding 0.1 MPa (1 kgf / cm 2).

    3.85. Flushing of the piping should be carried out until there is a steady flow of clean water from the outlet or drain of the flushed tubing.

    At the end of flushing, the piping must be completely free of water and, if necessary, blown out with compressed air.

    3.86. After purging and flushing, piping should be plugged.

    The design of the plugs should exclude the possibility of their breakdown at test pressures.

    On pipe lines designed to operate at Pp> / = 10 MPa (100 kgf / sq.cm), plugs or blind lenses with shanks must be installed.

    3.87. The pipelines supplying the test fluid, air or inert gases from pumps, compressors, cylinders, etc. to the pipelines must be pre-tested with hydraulic pressure in the assembled state with shut-off valves and pressure gauges.

    3.88. In hydraulic tests, water shall be used as the test fluid. The water temperature during the tests must be at least 5 ° C.

    3.89. In pneumatic tests, air or an inert gas shall be used as the test medium. Air and inert gases must be free from moisture, oil and dust.

    3.90. For hydraulic and pneumatic testing, the following pressure rise stages are recommended:

    The pressure on the 1st and 2nd stages is maintained for 1-3 minutes; during this time, according to the readings of the pressure gauge, there is no pressure drop in the pipework.

    Test pressure (3rd stage) is maintained for 5 minutes.

    On pipelines with a pressure of Pp> / = 10 MPa, the test pressure is maintained for 10-12 minutes.

    Raising the pressure to the 3rd stage is a strength test.

    Working pressure (4th stage) is maintained for the time required for final inspection and identification of defects. The 4th stage pressure is a density test.

    3.91. Defects are eliminated after reducing the pressure in the piping to atmospheric.

    After elimination of defects, the test is repeated.

    3.92. Piping wiring is considered to be serviceable if no pressure drop occurred on the pressure gauge during the strength test and no leaks were found in the welds and joints during the subsequent tightness test.

    At the end of the tests, an act must be drawn up.

    3.93. Piping lines filled with flammable, toxic and liquefied gases (except for gas pipelines with pressures up to 0.1 MPa (1 kgf / sq. Cm), pipe lines filled with oxygen, as well as pipe lines for pressures exceeding 10 MPa (100 kgf / sq. Cm). cm), for an absolute pressure from 0.001 to 0.095 MPa (from 0.01 to 0.95 kgf / cm2) must be subjected to additional tests for density with the determination of the pressure drop.

    3.94. Tubing should be flushed or purged prior to tightness testing of piping to determine the pressure drop.

    3.95. For pipelines with a pressure of 10-100 MPa (100-1000 kgf / cm2), before density tests with the determination of the pressure drop on the pipe lines, safety valves must be installed, pre-adjusted to open at a pressure exceeding the operating pressure by 8%. Safety valves should be provided for in the working documentation.

    3.96. The density test with the determination of the pressure drop is carried out with air or an inert gas with a test pressure equal to the working pressure (Ppr = Pp), except for pipelines for absolute pressure from 0.001 to 0.095 MPa (from 0.01 to 0.95 kgf / sq.cm), which must be tested with the following pressure:

    a) pipelines filled with flammable, toxic and liquefied gases - 0.1 MPa (1 kgf / sq.cm);

    b) pipelines filled with conventional media - 0.2 MPa (2 kgf / sq.cm).

    3.97. The duration of the additional density test and the holding time under test pressure is set in the working documentation, but should be at least for pipelines:

    3.98. Pipelines are considered to have passed the test if the pressure drop in them does not exceed the values ​​indicated in table. 2.

    table 2

    The specified standards apply to pipe lines with a nominal bore of 50 mm. When testing pipe lines with other nominal diameters, the rate of pressure drop in them is determined by the product of the above pressure drop values ​​by the coefficient calculated by the formula

    3.99. At the end of the density tests of pipe lines with the determination of the pressure drop during the test, an act must be drawn up.

    3.100. When carrying out pneumatic tests, the safety requirements set forth in SNiP III-4-80 and "Rules for the construction and safe operation of pipelines for flammable, toxic and liquefied gases" (PUG-69) must be observed.

    Electrical wiring

    3.101. Installation of electrical wiring for automation systems (measurement, control, power, signaling circuits, etc.) with wires and control cables in boxes and on trays, in plastic and steel protective pipes, on cable structures, in cable structures and the ground; installation of electrical wiring in explosive and fire hazardous zones, installation of grounding (grounding) must meet the requirements of SNiP 3.05.06-85, taking into account the specific features of the installation of automation systems set forth in the manuals to the specified SNiP.

    3.102. Connection of single-wire copper conductors of wires and cables with a cross section of 0.5 and 0.75 sq.mm and multi-wire copper conductors with a cross section of 0.35; 0.5; 0.75 sq. Mm to devices, apparatuses, clamp assemblies should, as a rule, be performed by soldering, if the design of their terminals allows this (non-separable contact connection).

    If it is necessary to connect single-wire and stranded copper conductors of the indicated cross-sections to devices, devices and assemblies of terminals that have leads and clamps for connecting conductors under a screw or bolt (collapsible contact connection), the conductors of these wires and cables must be terminated with lugs.

    Single-wire copper conductors of wires and cables with a cross section of 1; 1.5; 2.5; 4 mm2 should, as a rule, be connected directly under the screw or bolt, and stranded wires of the same cross-sections - with the help of lugs or directly under the screw or bolt. In this case, the cores of single-wire and multi-wire wires and cables, depending on the design of the terminals and clamps of devices, devices and clamp assemblies, are terminated with a ring or pin; the ends of the stranded conductors (rings, pins) must be soldered, the pin ends can be crimped with pin lugs.

    If the design of leads and clamps of devices, devices, clamp assemblies requires or allows other methods of connecting single-wire and stranded copper conductors of wires and cables, the methods of connection specified in the relevant standards and specifications for these products should be used.

    The connection of aluminum conductors of wires and cables with a cross-section of 2.0 sq. Mm and more to devices, apparatus, clamp assemblies should be carried out only with clamps that allow direct connection of aluminum conductors of the corresponding cross-sections to them.

    The connection of single-wire conductors of wires and cables (under a screw or soldering) is allowed only to stationary elements of devices and apparatus.

    The connection of conductors of wires and cables to devices, apparatuses and automation equipment that have output devices in the form of plug connectors should be carried out by means of multi-wire (flexible) copper wires or cables laid from clamp assemblies or junction boxes to instruments and automation equipment.

    Collapsible and non-collapsible connections of copper, aluminum and copper-aluminum conductors of wires and cables with leads and clamps of devices, devices, clamp assemblies must be performed in accordance with the requirements of GOST 10434-82, GOST 25154-82, GOST 25705-83, GOST 19104-79 and GOST 23517-79.

    3.103. The connection of steel protective pipes with each other, with broaching boxes, etc. in rooms of all classes should be carried out using standard threaded connections.

    In rooms of all classes, except for explosive and fire hazardous zones, it is allowed to connect steel thin-walled protective pipes with sleeves made of sheet steel or steel pipes of larger diameter, followed by welding around the entire perimeter of the joints: in this case, burn-through of pipes is not allowed.

    3.104. The assembled wiring of automation systems must be subjected to an external examination, which establishes the compliance of the mounted wiring with working documentation and the requirements of these rules. Wiring that meets the specified requirements must be tested for insulation resistance.

    3.105. Measurement of the insulation resistance of electrical wiring of automation systems (measurement, control, power, signaling circuits, etc.) is carried out with a megohmmeter for a voltage of 500-1000 V. The insulation resistance should not be less than 0.5 MΩ.

    When measuring insulation resistance, wires and cables must be connected to the terminal assemblies of panels, cabinets, consoles and junction boxes.

    Devices, apparatus and wiring that do not allow testing with a megohmmeter with a voltage of 500-1000 V must be turned off during the test.

    Based on the results of measuring the insulation resistance, an act is drawn up.

    Shields, cabinets and consoles

    3.106. Boards, cabinets and consoles must be handed over by the customer in a finished form for installation with equipment, fittings and installation products, with electrical and pipe internal wiring, prepared for connecting external electrical and pipe wiring and devices, as well as with fasteners for assembling and installing the boards, cabinets and consoles on site.

    3.107. Separate boards, consoles and cabinets should be assembled into composite boards (operator, dispatch) of any configuration using detachable connections.

    Fastening screw connections must be tightly and evenly tightened and secured against self-loosening.

    3.108. Boards, cabinets and consoles should be installed on embedded structures. The exception is small-sized panels placed on walls and columns, and flat cabinets that do not require pre-installation of embedded structures for installation.

    The main method of fixing the support frames of the panels to the embedded structures is one-piece, carried out by welding.

    Boards, cabinets and consoles must be plumbed during installation and then fixed.

    Installation of auxiliary elements (decorative panels, mnemonic diagrams, etc.) should be carried out while maintaining the center lines and verticality of the entire frontal plane of the shield. The angle of inclination of the mnemonic diagram specified in the working documentation must be maintained within the tolerances specified in it.

    3.109. Inputs of electrical and pipe wiring into shields, cabinets and consoles must be carried out in accordance with OST 36.13-76, approved by the USSR Ministry of Montazhspetsstroy.

    3.110. In order to increase the level of industrialization of installation work, as a rule, industrial automation premises should be used, including complete operator rooms (KOP) and complete sensor points (KPD). Industrial automation rooms should be delivered to the facility with mounted panels, cabinets, consoles, pipe and electrical wiring. The site should only carry out work on the connection of external piping and electrical wiring.

    3.111. End seals and connections of pipe and electrical wiring introduced into shields, cabinets, consoles, KOP and KPD must be performed in accordance with the requirements of SNiP 3.05.06-85 and these rules.

    Devices and automation equipment

    3.112. The installation should accept devices and automation equipment, verified with the preparation of the appropriate protocols.

    In order to ensure the safety of devices and equipment from breakdown, dismantling and theft, their installation must be carried out after the written permission of the general contractor (customer).

    3.113. The inspection of instruments and automation equipment is carried out by the customer or specialized organizations involved by him, performing work on setting up instruments and automation equipment using the methods adopted in these organizations, taking into account the requirements of the instructions of the State Standard and manufacturers.

    3.114. Instruments and automation equipment accepted for installation after verification must be prepared for delivery to the installation site. Moving systems must be locked, the connecting devices must be protected from moisture, dirt and dust.

    Along with the devices and automation equipment, special tools, accessories and fasteners included in their kit, required for installation, must be handed over to the installer.

    3.115. The placement of instruments and automation equipment and their mutual arrangement should be carried out according to the working documentation. Their installation should ensure the accuracy of measurements, free access to the devices and to their shut-off and adjustment devices (taps, valves, switches, adjustment knobs, etc.).

    3.116. In places where devices and automation equipment are installed, which are inaccessible for installation and maintenance, the construction of stairs, wells and platforms must be completed before the start of installation in accordance with the working documentation.

    3.117. Devices and automation equipment should be installed at ambient temperature and relative humidity specified in the manufacturer's installation and operating instructions.

    3.118. Connection of external pipe wiring to the devices must be carried out in accordance with the requirements of GOST 25164-82 and GOST 25165-82, and electrical wiring in accordance with the requirements of GOST 10434-82, GOST 25154-82, GOST 25705-83, GOST 19104-79 and GOST 23517-79.

    3.119. Fastening of instruments and automation equipment to metal structures (boards, cabinets, stands, etc.) should be carried out in the ways provided for by the design of instruments and automation equipment and the parts included in their set.

    If fasteners are not included in the set of individual instruments and automation equipment, then they must be fixed with normalized fasteners.

    In the presence of vibrations in the places where the devices are installed, the threaded fasteners must have devices that prevent their spontaneous unscrewing (spring washers, lock nuts, cotter pins, etc.).

    3.120. The openings of instruments and automation equipment intended for connecting pipe and electrical wiring must remain plugged until the wiring is connected.

    3.121. The cases of devices and automation equipment must be grounded in accordance with the requirements of the instructions of the manufacturers and SNiP 3.05.06-85.

    3.122. Sensitive elements of liquid thermometers, thermal alarms, manometric thermometers, thermoelectric converters (thermocouples), resistance thermocouples should, as a rule, be located in the center of the measured medium flow. At a pressure over 6 MPa (60 kgf / cm 2) and a steam flow rate of 40 m / s and water flow rate of 5 m / s, the immersion depth of the sensitive elements into the medium being measured (from the inner wall of the pipeline) should be no more than 135 mm.

    3.123. The working parts of the surface thermoelectric converters (thermocouples) and resistance thermocouples must fit tightly to the controlled surface.

    Before installing these devices, the place of their contact with pipelines and equipment must be descaled and cleaned to a metallic sheen.

    3.124. Thermoelectric converters (thermocouples) in porcelain fittings are allowed to be immersed in the high temperature zone for the length of the porcelain protective tube.

    3.125. Thermometers with protective covers made of different metals must be immersed in the measured medium to a depth not exceeding that specified in the manufacturer's passport.

    3.126. It is not allowed to lay the capillaries of manometric thermometers on surfaces whose temperature is higher or lower than the ambient air temperature.

    If it is necessary to lay capillaries in places with hot or cold surfaces, there must be air gaps between the latter and the capillary to protect the capillary from heating or cooling, or appropriate thermal insulation must be laid.

    Along the entire length of the gasket, the capillaries of manometric thermometers must be protected from mechanical damage.

    If the length is excessive, the capillary must be rolled into a coil with a diameter of at least 300 mm; the bay must be tied in three places with non-metallic tie and securely fixed to the device.

    3.127. Instruments for measuring the pressure of vapor or liquid, if possible, should be installed at the same level with the point of pressure tapping; if this requirement is impracticable, the working documentation should define a permanent correction to the readings of the device.

    3.128. Liquid U-type gauges are installed strictly vertically. The liquid filling the pressure gauge must be free of contamination and free of air bubbles.

    Spring pressure gauges (vacuum gauges) must be installed in a vertical position.

    3.129. Separation vessels are installed in accordance with the codes or working drawings of the project, as a rule, near the points of impulse collection.

    Separation vessels should be installed so that the control openings of the vessels are at the same level and can be easily serviced by the operating personnel.

    3.130. For piezometric level measurement, the open end of the measuring tube must be set below the minimum measurable level. The gas or air pressure in the measuring tube must ensure the passage of gas (air) through the tube at the maximum liquid level. The gas or air flow rate in piezometric level gauges must be adjusted to a value that covers all losses, leaks and the required speed of the measuring system.

    3.131. The installation of devices for physical and chemical analysis and their selection devices must be carried out in strict accordance with the requirements of the instructions of the manufacturers of devices.

    3.132. When installing indicating and recording devices on the wall or on racks attached to the floor, the scale, diagram, shut-off valves, adjustment and control devices for pneumatic and other sensors should be at a height of 1-1.7 m, and the controls for shut-off valves - in one plane with the scale of the device.

    3.133. Installation of aggregate and computer complexes of the APCS should be carried out according to the technical documentation of the manufacturers.

    3.134. All instruments and automation equipment installed or built into technological devices and pipelines (orifice and selection devices, meters, rotameters, level gauge floats, direct-acting regulators, etc.) must be installed in accordance with the working documentation and with the requirements, specified in the mandatory appendix 5.

    Optical cables (K)

    3.135. Before installing an optical cable, you should check its integrity and the attenuation coefficient of the optical signal.

    3.136. The laying of optical cables is carried out in accordance with the working documentation by methods similar to those adopted for the laying of electrical and pipe wiring, as well as communication cables.

    Optical cables are not allowed to be laid in the same tray, duct or pipe together with other types of wiring for automation systems.

    Do not route single and double fiber cables over cable shelves.

    It is forbidden to use ventilation ducts and shafts and escape routes for laying optical cable.

    3.137. Optical cables laid openly in places of possible mechanical stress at a height of up to 2.5 m from the floor of the room or service areas must be protected by mechanical covers, pipes or other devices in accordance with the working documentation.

    3.138. When pulling an optical cable, the fastening of the tension means should be carried out behind the power element, using tension limiters and anti-twist devices. The pulling forces must not exceed the values ​​specified in the cable specifications.

    3.139. The optical cable should be laid under the climatic conditions specified in the cable specifications. Laying an optical cable at an air temperature below minus 15 ° C or a relative humidity of more than 80% is not allowed.

    3.140. In the places where the optical cable is connected to the transceiver devices, as well as in the places where the couplings are installed, it is necessary to provide a supply of cable. The margin should be at least 2 m for each spliced ​​optical cable or transceiver device.

    3.141. The optical cable should be fixed on supporting structures for vertical laying, as well as when laying directly on the surface of the walls of the premises - along the entire length after 1 m; when laying horizontally (except for ducts) - at turning points.

    When cornering, the optical cable must be fastened on both sides of the corner at a distance equal to the permissible bending radius of the cable, but not less than 100 mm, counting from the apex of the corner. The turning radius of the optical cable must meet the requirements of the cable specifications.

    When laying an optical cable on single supports, these supports must be installed no more than 1 m apart, and the cable must be fixed on each support.

    3.142. The assembled optical cable should be monitored by measuring the attenuation of signals in individual fibers of the optical cable and checking it for integrity. The control results are documented by the protocol of measurements of the optical parameters of the mounted optical cable (see mandatory Appendix 1).

    4. INDIVIDUAL TESTS

    4.1. For acceptance by the working commission, automation systems are presented in the amount provided for by the working documentation, and that have passed individual tests.

    4.2 (K). In an individual test, you should check:

    a) compliance of the installed automation systems with working documentation and the requirements of these rules;

    b) pipe lines for strength and tightness;

    c) insulation resistance of electrical wiring;

    d) measurements of signal attenuation in individual fibers of the mounted optical cable according to special instructions.

    4.3. When checking the installed systems for compliance with the working documentation, the compliance of the installation sites of devices and automation equipment, their types and technical characteristics with the equipment specification, compliance with the requirements of this SNiP and operational instructions for the installation methods of devices, automation equipment, switchboards and consoles, and other means of local APCS systems is checked, electrical and pipe wiring.

    4.4. Testing pipe wiring for strength and density, as well as checking the insulation resistance of electrical wiring is carried out in accordance with Sec. 3.

    4.5 (K). After the completion of the individual testing, an acceptance certificate for the assembled automation systems is drawn up, to which documents on positions 4-12, 16, 21 of Appendix 1 are attached.

    4.6 (K). It is allowed to transfer installation work for adjustment by separate systems or separate parts of the complex (for example, dispatching and operator rooms, etc.). The delivery of the assembled automation systems is formalized by an act (see mandatory appendix 1).

    5. PRODUCTION OF COMMISSIONING WORKS

    5.1. Commissioning work must be carried out in accordance with the mandatory Appendix 1 to SNiP 3.05.05-84 and these rules.

    5.2. During commissioning, the requirements of the project and the technological regulations of the facility being put into operation must be observed, │Rules for electrical installations "(PUE), │Rules for the technical operation of consumer electrical installations" (PTE) and │Rules for safety in the operation of electrical installations of consumers "(PTB), approved by the USSR Ministry of Energy.

    5.3. During the period of individual testing and comprehensive testing of technological equipment, the customer or, on his behalf, the commissioning organization must ensure the commissioning of automation systems necessary for testing or testing technological equipment in accordance with the project and specifications of the manufacturers.

    5.4. By the beginning of the work on the adjustment of automation systems, the customer must bring all the control and stop valves on which the actuators of the automation systems are mounted; put into operation automatic fire extinguishing and alarm systems.

    5.5. Commissioning of automation systems is carried out in three stages.

    5.6. At the first stage, preparatory work is carried out, as well as the working documentation of automation systems, the main characteristics of instruments and automation equipment are studied. Testing of devices and automation equipment is carried out with the necessary adjustment of individual elements of the equipment.

    5.7. To check devices and automation equipment, the customer is obliged to:

    deliver devices and automation equipment to the production facility to the place of inspection;

    to transfer to the commissioning organization for the period of testing the devices and automation equipment spare parts and special tools supplied by the manufacturers of the tested devices and automation equipment, as well as verification equipment and special tools that are supplied as a set.

    5.8. When checking instruments and automation equipment, they check the compliance of the main technical characteristics of the equipment with the requirements established in the passports and instructions of the manufacturers. The results of the check and adjustment are recorded in the act or passport of the equipment. Defective devices and automation equipment are handed over to the customer for repair or replacement.

    Devices and automation equipment, disassembled, without technical documentation (passports, certificates, etc.), with changes not reflected in the technical specifications, are not accepted for testing. Upon completion of the check, devices and automation equipment are transferred to the installation according to the act.

    5.9. At the second stage, work is performed on the autonomous adjustment of automation systems after the completion of their installation.

    This is carried out:

    checking the installation of devices and automation equipment for compliance with the requirements of the instructions of manufacturers of devices and automation equipment and working documentation; detected defects in the installation of devices and automation equipment are eliminated by the installation organization;

    replacement of individual defective elements: lamps, diodes, resistors, fuses, modules, etc. serviceable, issued by the customer;

    checking the correctness of marking, connection and phasing of electrical wiring;

    phasing and control of the characteristics of actuators;

    setting up logical and temporary interconnections of alarm, protection, blocking and control systems; checking the correctness of the signal flow;

    preliminary determination of the characteristics of the object, calculation and adjustment of the parameters of the equipment of the systems;

    preparation for switching on and putting into operation of automation systems to ensure individual testing of technological equipment and adjusting the settings of the equipment of the systems in the course of their operation;

    registration of production and technical documentation.

    5.10. The necessary shutdowns or switching of pipe and electrical wiring associated with checking or adjusting individual devices or automation equipment is carried out by the commissioning organization.

    5.11. The inclusion of automation systems in operation should be carried out only when:

    the absence of violations of the requirements for the operating conditions of instruments and automation equipment, communication channels (for temperature, humidity and aggressiveness of the environment, etc.) and for safety measures;

    the presence of the minimum required technological load of the automation object for determining and setting the parameters for setting up instruments and automation equipment, testing and commissioning automation systems;

    compliance of the settings for the actuation of devices, devices and automation equipment specified in the working documentation or established by the customer;

    the customer has documents on the completion of installation work listed in the mandatory Appendix 1.

    5.12. At the third stage, work is carried out on the complex adjustment of automation systems, bringing the settings of instruments and automation equipment, communication channels to values ​​at which automation systems can be used in operation. In this case, it is carried out in a complex:

    determination of the conformity of the procedure for the testing of devices and elements of signaling, protection and control systems to the algorithms of the working documentation with the identification of the causes of failure or their "false" triggering, setting the necessary triggering values ​​for the positioning devices;

    determination of the compliance of the throughput of the shut-off and control valves with the requirements of the technological process, the correctness of the circuit breakers;

    determination of the flow characteristics of regulatory bodies and bringing them to the required norm using the adjustment elements available in the design;

    preparation for switching on and putting into operation of automation systems to ensure comprehensive testing of technological equipment;

    clarification of the static and dynamic characteristics of the object, correction of the values ​​of the system settings, taking into account their mutual influence during operation;

    testing and determining the suitability of automation systems to ensure the operation of equipment with a performance that meets the standards for the development of design capacities in the initial period;

    analysis of the operation of automation systems in operation;

    registration of production documentation.

    5.13. The works of the third stage are carried out after the complete completion of construction and installation works, their acceptance by the working commission, in accordance with the requirements of SNiP III-3-81 and these rules on the operating equipment and in the presence of a stable technological process.

    5.14. Removal of flow characteristics and determination of the throughput of regulatory bodies should be carried out provided that the parameters of the medium in the pipeline comply with the standards established by the standard, working documentation or a passport for control valves.

    5.15. The adjustment of the values ​​of the actuation of elements and devices of alarm and protection systems established by the working documentation or other technological documentation should be made only after the customer has approved the new values.

    5.16. To prepare automation systems for operation during the period of complex testing of technological equipment, the customer must submit to the commissioning organization a list of systems necessary for switching on and a schedule for their switching on.

    5.17. The personnel of the commissioning organization dedicated to the maintenance of the automation systems included in the work must be instructed on safety precautions and work rules at the operating enterprise. The briefing is carried out by the customer's services in the amount established by the line ministries; it must be recorded in the safety log.

    5.18. In the absence of specific requirements for the performance indicators of automation systems in the working documentation, the definition of such requirements is carried out by the customer in agreement with the commissioning organization.

    When determining the requirements for the performance indicators of automation systems, first of all, the requirements for the indicators of the quality and reliability of the system should be set.

    5.19. All switching of operating modes of technological equipment in determining the real characteristics of the automation object must be made by the customer. Switching on and off automation systems should be recorded in the operational log.

    5.20. Commissioning work on automation systems should be carried out in accordance with the requirements given in the working documentation, instructions for manufacturers of instruments and automation equipment or in the industry rules for commissioning completed construction projects approved by the relevant ministries and departments of the USSR in agreement with the USSR Gosstroy.

    5.21. The scope and conditions of commissioning work for individual automation systems are determined in the program developed by the commissioning organization and approved by the customer and providing for the fulfillment of the requirements of paragraphs. 5.5-5.12.

    5.22. The results of the commissioning work are documented in a protocol, which includes an assessment of the system's operation, conclusions and recommendations. The implementation of recommendations for improving the operation of automation systems is carried out by the customer.

    5.23. The transfer of automation systems to operation is carried out by agreement with the customer, both for separately adjusted systems and comprehensively for automated installations, technological equipment units and workshops.

    When automation systems are commissioned for separately adjusted systems, an act of acceptance for operation of automation systems is drawn up in accordance with mandatory Appendix 1.

    The following documentation must be attached to the act:

    a list of settings for devices, instruments and automation equipment and the values ​​of the settings for automatic control (regulation) systems;

    programs and protocols for testing automation systems;

    a schematic diagram of the working documentation for automation with all the changes made and agreed with the customer during the commissioning process (one copy);

    passports and instructions of manufacturers of devices and automation equipment, additional technical documentation received from the customer in the course of commissioning.

    5.24. The end of the commissioning works is fixed by the act of acceptance of automation systems into operation in the amount stipulated by the project.

    APPENDIX 1 (K)

    Mandatory

    PRODUCTION DOCUMENTATION,
    FORMED DURING INSTALLATION AND ADJUSTMENT
    AUTOMATION SYSTEMS

    Name

    Note

    1. The act of transferring the worker
    documentation for
    production of works

    Completeness of documents in accordance with SN 202-81, VSN 281-75 and standards of the design documentation system for construction; suitability for installation work using complete-block and nodal work methods; availability of a permit for the production of work; date of acceptance of documentation and signatures of representatives of the customer, general contractor and installation organization

    2. Act of readiness

    to work
    for installation of systems
    automation

    The act should especially note the correctness of the installation of embedded structures and primary devices on technological equipment, apparatus and pipelines in accordance with clause 2.12

    3. Act of interruption
    installation works

    Any shape

    4. Act
    survey
    hidden works

    According to the form of the certificate of inspection of hidden works SNiP 3.01.01-85

    5. Test report

    postings on

    strength

    and density

    6. Act of pneumatic
    testing pipe
    postings on

    density

    with the definition
    pressure drop for
    test time

    It is compiled for pipelines filled with flammable, toxic and liquefied gases (except for gas pipelines with a pressure of up to 0.1 MPa); oxygen-filled piping; pipe lines for the pressure of St. 10 MPa and for absolute pressure from 0.001 to 0.095 MPa

    7. Certificate for degreasing
    fittings, connections
    and pipes

    Composed on pipe
    postings filled
    oxygen

    8. Documents for pipe
    pressure wiring
    St. 10 MPa

    It is compiled for pipe lines with the pressure of St. 10 MPa

    9. Welding log
    works

    It is made for pipelines of I and II categories and for pressure of St. 10 MPa

    10. Measurement protocol
    resistance
    isolation

    11. Warm-up protocol
    cables on
    drums

    Formulated only when laid at low temperatures

    12. Documents on
    electrical wiring
    in explosive
    zones

    Types of documents are established by the BCH

    Available only for hazardous areas

    13. Documents on
    electrical wiring
    in fire hazardous
    zones

    Designed for fire hazardous areas only

    14. Act of inspection
    instruments and tools
    automation

    Any shape

    15. Permission to
    installation of devices
    and funds
    automation

    16. Statement
    mounted
    instruments and tools
    automation

    Any shape

    17 (K). Acceptance certificate
    mounted
    systems
    automation

    Any shape

    18. Permission to
    alteration
    to work
    documentation

    Form according to GOST 21201-78

    19. Acceptance certificate in
    systems operation
    automation

    Form attached

    Issued upon commissioning according to separately adjusted systems

    20. Acceptance certificate

    automation in
    exploitation

    According to the form of the act adj. 2 SNiP III-3-81

    To the extent stipulated by the project

    21 (C). Protocol

    measurements

    optical
    parameters
    mounted
    optical cable

    Any shape

    APPROVED

    _____________________
    _____________________
    (customer)

    ____________№__________

    G. ____________________

    Commissioning
    automation systems

    Reason: presentation for commissioning of systems
    automation ______________________________________________________

    (name of the commissioning organization)

    Compiled by the commission: _______________________________________________

    (customer's representative, surname, acting, position)

    (representatives of the commissioning organization, surnames, acting, positions)

    The Commission carried out work to determine the suitability of automatic
    commissioning _____________________________________________

    (name of automation systems)

    It was found that the above automation systems:

    1. We ensured the smooth operation of technological equipment in
    in a given mode during the integrated testing period during _________
    with a positive result. (time)

    2. Meet technical requirements _________________________

    (name of the normative document, project)

    Based on the data received, the commission considers:

    1. Take into operation the automation systems presented for delivery
    zation.

    2. Commissioning works were completed with an assessment of ____________________

    Attached to the act are: 1 ._________________

    2._________________

    3._________________

    Customer Commissioning organization

    _____________________ ___________________________
    (signature) (signature)

    GROUPS AND CATEGORIES OF PIPELINES OF AUTOMATION SYSTEMS
    DEPENDING ON FILLED MEDIUM AND OPERATING PRESSURE

    Functional purpose of piping

    Filling medium
    and its parameters

    Pipe wiring group

    Command and supply systems of pneumatic and hydraulic automatics, heating and cooling

    Water, air

    Hydroautomatics command systems

    Oil at PP(16 kgf / sq. Cm)

    Pp> 1.6 MPa
    (16 kgf / sq. Cm)

    Pulse, drainage and auxiliary

    Air, water, steam, inert gases, non-hazardous and non-flammable gases and liquids when
    Рр up to 10 MPa
    (100 kgf / sq. Cm)

    According to SN 527-80

    Other gases and liquids according to the area of ​​distribution
    SN 527-80

    According to SN 527-80

    INSTALLATION TERMS AND DEFINITIONS
    AUTOMATION SYSTEMS

    1. Embedded structure (embedded element) - a part or assembly unit permanently embedded in building structures (channel, angle, sleeve, branch pipe, plate with sleeves, boxes with sand closure, suspended ceiling structures, etc.) or in technological devices and pipelines (lugs, fittings, pockets and sleeves for the device, etc.).

    2. Piping - a set of pipes and pipe cables (pneumatic cables), connections, connections, protective devices and fittings.

    3. Impulse communication line - tubing connecting the pick-off device to an instrumentation, transmitter, or regulator. It is designed to transmit the effects of a controlled or regulated process environment to sensitive organs of instrumentation, sensors or regulators, directly or through separation media.

    Pulse communication lines also include capillaries of manometric thermometers and temperature regulators, connecting temperature-sensitive elements (thermocylinders) with manometric measuring devices of instruments and regulators.

    4. Command line of communication - pipe wiring connecting individual functional units of automation (sensors, switches, secondary measuring instruments, converters, computing, regulating and control devices, actuators). It is designed to transmit command signals (air, water, oil pressure) from transmitting units to receiving units.

    5. Power line - piping connecting measuring instruments and automation equipment to power sources (pumps, compressors and other sources). It is designed to supply liquid (water, oil) or gas (air) to devices and automation equipment (sensors, converters, computing, regulating and control devices, amplifiers, positioners) with excess pressure, varying within specified limits, used as carriers of auxiliary energy during processing and transmission of command signals.

    6. Heating line - pipe wiring, through which heat carriers (air, water, steam, etc.) are supplied (and removed) to heating devices for selection devices, measuring instruments, automation equipment, switchboards and streams of impulse, command and other pipe wiring.

    7. Cooling line - piping through which cooling agents (air, water, brine, etc.) are supplied (and removed) to cooling devices for selected devices, sensors, actuators and other automation equipment.

    8. Auxiliary line - piping by means of which:

    a) protective liquids or gases are supplied to the impulse communication lines, creating counter flows in them to protect against aggressive influences, blockages, clogging and other phenomena that cause damage and failure of selected devices, measuring instruments, automation equipment and the impulse lines themselves;

    b) are supplied to devices, regulators, impulse communication lines of liquid or gas for periodic flushing or purging them during operation;

    c) a parallel flow of a part of the product taken from the technological apparatus or pipeline for analysis is created in order to accelerate the supply of the sample to a measuring device remote from the sampling point (for example, to an analyzer of liquid petroleum products, etc.).

    9. Drainage line - pipe wiring through which blowdown and flushing products (gases and liquids) are discharged from devices and regulators, impulse and command communication lines, auxiliary and other lines to designated places (special containers, atmosphere, sewage, etc.). ).

    10. Tubing block - a certain number of pipes of the required length and configuration, laid and fixed in a certain position and fully prepared for connection with adjacent piping nodes.

    LIST OF MAIN REGULATORY AND TECHNICAL DOCUMENTS
    FOR TECHNOLOGICAL PIPELINES

    Document

    additional information

    Rules for the construction and safe operation of pipelines for flammable, toxic and liquefied gases

    Approved by the Gosgortekhnadzor of the USSR and agreed with the Gosstroy of the USSR in 1969.

    Safety regulations for the production of the main chemical industry

    Approved by the Gosgortekhnadzor of the USSR, the Ministry of Chemical Industry and the Central Committee of the trade union of workers of the oil, chemical and gas industries and agreed with the Gosstroy of the USSR in 1979.

    Safety rules in explosive and explosive fire hazardous chemical and petrochemical industries

    Approved by the Gosgortekhnadzor of the USSR and agreed with the Gosstroy of the USSR in 1974.

    Safety rules for acetylene production

    Approved by the Gosgortekhnadzor of the USSR and the Ministry of Chemical Industry and agreed with the Gosstroy of the USSR in 1977.

    Safety rules for the production, storage and transportation of chlorine

    Approved by the Gosgortekhnadzor of the USSR and the Ministry of Chemical Industry and agreed with the Gosstroy of the USSR in 1973, in 1983 amended

    Safety rules for inorganic production of the nitrogen industry

    Approved by the Gosgortekhnadzor of the USSR and the Ministry of Chemical Industry and agreed with the Gosstroy of the USSR in 1976.

    Safety rules for the production of synthetic rubber and synthetic ethyl alcohol

    Approved by the Gosgortekhnadzor of the USSR, the Ministry of Petroleum Engineering of the USSR and agreed with the Gosstroy of the USSR in 1981.

    Safety rules in the gas industry of ferrous metallurgy plants

    Approved by the Gosgortekhnadzor of the USSR, the Ministry of Chermet of the USSR and agreed with the Gosstroy of the USSR in 1969.

    Safety regulations in the by-product coke industry

    Approved by the Gosgortekhnadzor of the USSR, the Ministry of Chermet of the USSR and agreed with the Gosstroy of the USSR in 1981.

    VSN 10-83
    ------------------
    Minhimprom

    Oxygen Gas Pipeline Design Instruction

    Approved by the Ministry of Chemical Industry and agreed with the USSR Gosstroy, the USSR Gosgortekhnadzor, the USSR Ministry of Internal Affairs GUPO in 1983.

    Safety rules in the gas industry

    Approved by the Gosgortekhnadzor of the USSR and agreed with the Gosstroy of the USSR and the All-Union Central Council of Trade Unions in 1979.

    GOST 12.2.060-81 (ST SEV 2083-80)

    Occupational safety standards system.

    Approved by the USSR State Committee for Standards

    Acetylene pipelines.

    Safety requirements

    APPENDIX 5

    Mandatory

    INSTALLATION REQUIREMENTS
    ON TECHNOLOGICAL EQUIPMENT AND PIPELINES

    1. Installation of restricting devices in pipelines should be carried out in accordance with working drawings and standards in compliance with the "Rules for measuring the flow of gases and liquids with standard restricting devices", approved by the State Standard.

    2. Before installing the orifice device, a check must be made with the design data and the picking list:

    a) the diameter of the pipeline and the place of installation;

    b) grade of material of the restriction device;

    c) the direction of flow and the correctness of the designation "plus" and "minus" on the body of the restriction device.

    3. Installation of the restriction device should be carried out in such a way that the markings on its body are accessible for inspection in working order.

    If this requirement is not met, a plate is attached to the orifice device, on which the data placed on the body of the orifice device are applied.

    4. Constriction devices installed on pipelines must be installed in compliance with the basic technical requirements:

    a) the lengths of straight sections of the pipeline before and after the restriction device, specified in the working documentation, must be maintained;

    b) the installation of flanges should be carried out so that the flange planes are parallel to each other and perpendicular to the axis of the pipelines.

    The distance between the flange planes should be equal to the construction length of the restriction device, taking into account the space for gaskets on both sides;

    c) the pipeline in front of the restriction device must be cleaned of dirt, traces of welding and internal protrusions that distort the shape of the flow; on the inner surface of a pipeline section with a length equal to its two outer diameters, in front of and behind the restricting device, there should be no ledges, as well as irregularities visible to the naked eye (dents, welding burrs, etc.);

    d) the alignment of the pipeline and the restricting device must be ensured, as well as the perpendicularity of the end of the restricting device to the axis of the pipeline;

    e) the direction of the arrow indicated on the restriction device must coincide with the direction of the flow of the substance filling the pipeline; the sharp edge of the diaphragm, the rounded part of the nozzle or venturi must be directed against the flow of the measured medium;

    f) gaskets should not protrude into the process pipelines.

    5. Embedded structures for the installation of pressure taps and taps from orifice devices on horizontal and inclined pipelines should be located:

    a) on gas and air pipelines - from above;

    b) on the pipelines of liquid and steam - from the side.

    6. Flow meters (meters, rotameters, etc.) built into process pipelines must be installed in compliance with the following basic requirements:

    a) installation of meters is carried out after completion of installation and thorough cleaning of the pipeline; testing of the pipeline and the meter is carried out simultaneously;

    b) high-speed meters should be installed on straight sections of pipelines in the places indicated in the project;

    c) the flange planes should be parallel to each other and perpendicular to the pipeline axis.

    7. Technological pipelines in the places where rotameters, volumetric and high-speed meters are installed must have bypass lines with appropriate shut-off valves.

    8. If the gauge of the meter is less than the diameter of the pipeline, the meter must be installed between two tapered transition pipes. In this case, shut-off valves must be installed on the main pipeline before and after the branch pipes. The use of adapter flanges is prohibited.

    9. Floats of all types of level gauges must be installed so that the movement of the float and the cable or rod occurs without rubbing. The float travel should be equal to or slightly greater than the maximum level measurement.

    10. Installation of temperature and pressure regulators of direct action on process pipelines should be carried out in such a way that the direction of the arrows on their bodies corresponds to the direction of movement of the measured medium.

    11. The length of straight sections of the pipeline before and after the control valves must correspond to that specified in the project.

    12. If the nominal bore of the control valve does not match the diameter of the pipeline, the valve must be installed by means of tapered transition pipes.

    The use of adapter flanges is prohibited.

    13. All instruments and automation equipment installed or built into technological devices and pipelines - direct-acting regulators, restricting devices, control valves, meters, etc. - should be installed after cleaning and flushing devices and pipelines before their hydraulic strength test and density, on oxygen lines - after degreasing.

    The text of the document is verified by:
    official publication
    Gosstroy USSR - M.: TsITP, 1986

    / SNiP 3.05.07-85 (as amended 1 1990)

    Updated: 09.02.2006

    BUILDING REGULATIONS

    AUTOMATION

    SNiP 3.05.07-85

    OFFICIAL EDITION

    STATE COMMITTEE OF THE USSR

    CONSTRUCTION

    DEVELOPED by GPI Proektmontazhavtomatika of the USSR Ministry ofmontazhspetsstroy (M. L. Vitebsky - topic leader, V.F. Valetov, R.S.Vinogradova, Ya.V. Grigoriev, A. Ya.Minder, N.N. Pronin).

    INTRODUCED by the USSR Ministry of Montazhspetsstroy.

    PREPARED FOR APPROVAL by the Glavtekhnormirovanie Gosstroy of the USSR (B. A. Sokolov).

    With the introduction of SNiP 3.05.07-85 "Automation systems" they lose SNiP III-34-74 "Automation system".

    AGREED with the Ministry of Health of the USSR (letter dated December 24, 1984, No. 122-12 / 1684-4), Gosgortekhnadzor of the USSR (letter dated February 6, 1985, No. 14-16 / 88).

    These norms and rules apply to the production and acceptance of work on the installation and commissioning of automation systems (control, management and automatic regulation) of technological processes and engineering equipment for the construction of new, expansion, reconstruction and technical re-equipment of existing enterprises, buildings and structures of sectors of the national economy.

    These rules do not apply to the installation of: automation systems for special facilities (nuclear plants, mines, enterprises for the production and storage of explosives, isotopes); railway transport signaling systems; communication and signaling systems; automatics of fire extinguishing and smoke removal systems; instruments using radioisotope measurement methods; devices and automation equipment built into machine tools, machines and other equipment supplied by manufacturers.

    The rules establish requirements for the organization, production and acceptance of work on the installation of devices, automation equipment, boards, consoles, aggregate and computing complexes of automated process control systems (APCS), electrical and pipe wiring, etc., as well as for setting up mounted automation systems.

    The rules must be followed by all organizations and enterprises involved in the design, installation and commissioning of automation systems.

    1. GENERAL PROVISIONS

    1.1. During the installation and commissioning of automation systems, the requirements of these rules, SNiP 3.01.01-85, SNiP III-3-81, SNiP III-4-80 and departmental regulatory documents approved in the manner prescribed by SNiP 1.01.01- 82 *.

    1.2. Work on the installation of automation systems must be carried out in accordance with the approved design and estimate documentation, the work production project (PPR), as well as with the technical documentation of manufacturers.

    1.3. Installation of instruments and automation equipment for the nodal construction method and the complete-block method of installation of technological equipment and pipelines, carried out in accordance with SNiP 3.05.05-84, should be carried out in the process of pre-assembly of technological lines, units and blocks.

    1.4. The general contractor should involve the organization that carries out the installation of automation systems in the consideration of the construction organization project (PIC) in terms of performing installation work using complete-block and nodal methods, the layout of special rooms intended for automation systems (control rooms, operator rooms, control rooms, sensor rooms, etc.) p.), ahead of the time of their construction and transfer for installation.

    1.5. Upon delivery of automation systems, documentation should be drawn up in accordance with the mandatory Appendix 1 of these rules.

    1.6. The completion of the installation of automation systems is the completion of individual tests carried out in accordance with Sec. 4 of these rules, and the signing of the acceptance certificate for the assembled automation systems in the amount of working documentation.

    2. PREPARATION FOR PRODUCTION OF INSTALLATION WORKS

    GENERAL REQUIREMENTS

    2.1. The installation of automation systems should be preceded by preparation in accordance with SNiP 3.01.01-85 and these rules.

    2.2. As part of the general organizational and technical training, the following must be determined by the customer and agreed with the general contractor and the installation organization:

    a) the conditions for completing the facility with devices, automation equipment, products and materials supplied by the customer, providing for their delivery to the technological unit. node, line;

    b) a list of devices, automation equipment, aggregate and computer complexes of the automated process control system, mounted with the involvement of the chief installation personnel of manufacturing enterprises;

    c) the conditions for the transportation of switchboard blocks, consoles, group installations of devices, pipe blocks to the installation site.

    2.3. When preparing the installation organization for the production of work, there should be:

    a) working documentation received;

    b) a project for the production of works has been developed and approved;

    c) the acceptance of the construction and technological readiness of the facility for the installation of automation systems has been made;

    d) the acceptance of equipment (instruments, automation equipment, panels, consoles, aggregate and computer complexes of the automated process control system), products and materials from the customer and the general contractor was made;

    e) enlarged assembly of units and blocks was made;

    f) the measures for labor protection and fire safety provided for by the rules and regulations have been carried out.

    2.4. Before starting the installation of automation systems, the installation organization, together with the general contractor and the customer, must resolve the following issues:

    a) advance deadlines have been established for the construction of special premises intended for automation systems, ensuring the timely conduct of individual tests of the technological lines, units and blocks being put into operation;

    b) technological lines, assemblies, blocks and the timing of their transfer for individual tests have been determined after the installation of automation systems;

    c) the necessary production workshops, household and office premises are provided, equipped with heating, lighting and a telephone;

    d) it is envisaged to use the main construction machines at the disposal of the general contractor (vehicles, lifting and unloading machines and mechanisms, etc.) to move large-sized units (blocks of panels, consoles, pipes, etc.) from the production bases of assembly organizations before installing them in the design position at the construction site;

    f) permanent or temporary networks are provided for supplying electricity, water, compressed air to the facilities, with devices for connecting equipment and tools;

    g) measures are provided in accordance with the project (working draft) to ensure the protection of instruments and automation equipment, panels, consoles, pipe and electrical wiring from the influence of precipitation, groundwater and low temperatures, from pollution and damage, and computer equipment - and from static electricity.

    2.5. In the working documentation of automation systems accepted for the production of work, the installation organization must check the following:

    a) interconnection with technological, electrical, plumbing and other working documentation;

    b) bindings in working drawings of instruments and automation equipment supplied by manufacturing enterprises complete with technological equipment;

    c) taking into account the requirements of high factory and assembly readiness of equipment, advanced methods of assembly work, maximum transfer of labor-intensive work to assembly and procurement workshops;

    e) the presence of explosive or fire hazardous zones and their boundaries, categories, groups and names of explosive mixtures; places of installation of separating seals and their types;

    f) availability of documentation for the installation and testing of pipe lines for pressure over 10 MPa (100 kgf / cm 2).

    2.6. Acceptance of construction and technological readiness for the installation of automation systems should be carried out in stages for individual complete parts of the facility (control rooms, operator rooms, technological blocks, nodes, lines, etc.).

    2.7. The delivery of products and materials to the facility by the organization assembling the automation systems should be carried out, as a rule, with the help of containers.

    ACCEPTANCE OF THE OBJECT FOR INSTALLATION

    2.8. Before the start of the installation of automation systems at the construction site, as well as in buildings and premises handed over for the installation of automation systems, construction work must be carried out, provided for by the working documentation and the project for the production of works.

    In the building structures of buildings and structures (floors, ceilings, walls, equipment foundations), in accordance with the architectural and construction drawings, there must be:

    centering axes and working elevation marks are applied:

    channels, tunnels, niches, grooves, embedded pipes for hidden wiring, openings for the passage of pipe and electrical wiring with the installation of boxes, sleeves, nozzles, frames and other embedded structures in them;

    platforms for servicing devices and automation equipment have been installed;

    installation openings were left for moving large-sized units and blocks.

    2.9. In special rooms intended for automation systems (see clause 1.4), as well as in production rooms in places intended for the installation of instruments and automation equipment, construction and finishing works must be completed, formwork, scaffolding and scaffolds must be disassembled, not required for the installation of automation systems, as well as garbage.

    2.10. Special rooms intended for automation systems (see clause 1.4) must be equipped with heating, ventilation, lighting, and, if necessary, air conditioning, mounted according to a permanent scheme, have glazing and door locks. The premises must be kept at a temperature of at least 5 ° C.

    After the delivery of these premises for the installation of automation systems, construction work and installation of sanitary systems are not allowed in them.

    2.11. In the premises intended for the installation of technical means of aggregate and computer complexes of the automated process control system, in addition to the requirements of paragraphs. 2.9; 2.10, air conditioning systems must be installed and dust thoroughly removed. Painting the premises with chalk whitewash is prohibited. The windows should be provided with protective equipment from direct sunlight (blinds, curtains).

    2.12. By the beginning of the installation of automation systems on technological, sanitary-technical and other types of equipment, pipelines must be installed:

    embedded and protective structures for the installation of primary devices. Embedded structures for the installation of selective pressure, flow and level devices must end with shut-off valves;

    devices and automation tools built into pipelines, air ducts and apparatus (orifices, volumetric and high-speed meters, rotameters, flow sensors of flow meters and concentrometers, level meters of all types, regulating bodies, etc.).

    2.13. At the facility, in accordance with technological, plumbing, electrical and other working drawings, there should be:

    main pipelines and distribution networks were laid with the installation of fittings for the selection of heat carriers to the heated devices of automation systems, as well as pipelines were laid for the removal of heat carriers;

    equipment was installed and main and distribution networks were laid to provide instruments and means of automation with electricity and energy carriers (compressed air, gas, oil, steam, water, etc.), as well as pipelines were laid for the removal of energy carriers;

    a sewerage network was laid to collect wastewater from drainage pipelines of automation systems;

    the grounding network is made;

    completed work on the installation of automatic fire extinguishing systems.

    2.14. The grounding network for the technical means of aggregate and computer complexes of the APCS must meet the requirements of the enterprises - manufacturers of these technical means.

    2.15. Acceptance of the object is formalized by an act of readiness of the object for the production of works on the installation of automation systems in accordance with the mandatory Appendix 1.

    TRANSFER TO INSTALLATION EQUIPMENT, PRODUCTS,

    MATERIALS AND TECHNICAL DOCUMENTATION

    2.16. The transfer of equipment, products, materials and technical documentation for installation is carried out in accordance with the requirements of the "Rules on Contracts for Capital Construction" approved by the Council of Ministers of the USSR and "Regulations on the relationship of organizations - general contractors with subcontractors" approved by the USSR State Construction Committee and the USSR State Planning Committee ...

    2.17. Accepted equipment, materials and products must comply with working documentation, state standards, technical specifications and have appropriate certificates, technical passports or other documents certifying their quality. Pipes, fittings and connections for oxygen piping must be degreased, which must be indicated in the documentation confirming this operation.

    When accepting equipment, materials and products, the completeness, the absence of damage and defects, the safety of the paint and special coatings, the safety of the seals, the availability of special tools and devices supplied by the manufacturers are checked.

    Details of pipe lines for pressure over 10 MPa (100 kgf / cm2) are transferred for installation in the form of products prepared for installation (pipes, fittings for them, fittings, hardware, fittings, etc.) or assembled into assembly units, complete according to the specification of the detail drawings. The pipe openings must be closed with plugs. Acts or other documents confirming the quality of welded joints in accordance with SNiP 3.05.05-84 must be transferred to products and assembly units with welded seams.

    Elimination of equipment defects found during the acceptance process is carried out in accordance with the "Rules on Contracts for Capital Construction".

    3. PRODUCTION OF INSTALLATION WORKS

    GENERAL REQUIREMENTS

    3.1. The installation of automation systems should be carried out in accordance with the working documentation, taking into account the requirements of manufacturers of devices, automation equipment, aggregate and computing complexes, provided for by the technical conditions or instructions for the operation of this equipment.

    Installation work should be carried out by an industrial method using small-scale mechanization, mechanized and electrified tools and devices that reduce the use of manual labor.

    3.2. Installation of automation systems should be carried out in two stages (stages):

    At the first stage, the following should be carried out: procurement of mounting structures, assemblies and blocks, electrical wiring elements and their enlarged assembly outside the installation area; checking the presence of embedded structures, openings, holes in building structures and building elements, embedded structures and selected devices on technological equipment and pipelines, the presence of a grounding network; laying pipes and blind boxes for hidden wiring into the foundations, walls, floors and ceilings; marking of routes and installation of supporting and supporting structures for electrical and pipe wiring, actuators, devices.

    At the second stage, it is necessary to carry out: laying pipe and electrical wiring along the installed structures, installing shields, cabinets, consoles, devices and automation equipment, connecting pipe and electrical wiring to them, individual tests.

    3.3. Assembled devices and automation equipment of the electrical branch of the State System of Instruments (GSP), boards and consoles, structures, electrical and pipe wiring to be grounded in accordance with the working documentation must be connected to the ground loop. If there are requirements of manufacturers, the means of aggregate and computing systems must be connected to a special grounding circuit.

    INSTALLATION OF STRUCTURES

    3.4. The marking of the installation sites of structures for instruments and automation equipment should be carried out in accordance with the working documentation.

    When marking, the following requirements must be taken into account:

    when installing structures, hidden wiring, strength and fire resistance of building structures (foundations) must not be violated;

    the possibility of mechanical damage to the mounted instruments and automation equipment must be excluded.

    3.5. The distance between the supporting structures on the horizontal and vertical sections of the route for laying pipe and electrical wiring, as well as pneumatic cables should be taken according to the working documentation.

    3.6. Supporting structures must be parallel to each other, as well as parallel or perpendicular (depending on the type of structures) to building structures (foundations).

    3.7. Structures for wall-mounted appliances must be perpendicular to the walls. Racks installed on the floor must be plumb or level. When two or more racks are installed side by side, they must be fastened together with detachable connections.

    3.8. Installation of boxes and trays should be carried out in enlarged blocks assembled in assembly and procurement workshops.

    3.9. Fastening boxes and trays to supporting structures and their connection to each other must be bolted or welded.

    With a bolted connection, the tightness of the connection of boxes and trays with each other and with the supporting structures must be ensured, as well as the reliability of the electrical contact.

    When connecting by welding, burn-through of boxes and trays is not allowed.

    3.10. The location of the boxes after their installation should exclude the possibility of moisture accumulation in them.

    3.11. At the intersection of sedimentary and expansion joints of buildings and structures, as well as on outdoor installations, ducts and trays must have compensating devices.

    3.12. All structures must be painted in accordance with the instructions given in the working documentation.

    3.13. Piping and electrical passages through walls (external or internal) and ceilings must be carried out in accordance with the working documentation.

    PIPE WIRING

    3.14. These rules apply to the installation and testing of piping of automation systems (impulse, command, supply, heating, cooling, auxiliary and drainage according to the recommended Appendix 3) operating at an absolute pressure from 0.001 MPa (0.01 kgf / cm2) to 100 MPa ( 1000 kgf / cm2).

    The rules do not apply to the installation of pipe wiring inside shields and consoles.

    3.15. Installation and testing of piping of automation systems must meet the requirements of SNiP 3.05.05-84 and this SNiP.

    3.16. Equipment, fixtures, tooling, work methods used during the installation of pipe wiring must ensure the possibility of installing the following pipes and pneumatic cables:

    steel water and gas pipelines in accordance with GOST 3262-75 ordinary and light with a nominal bore 8; 15; twenty; 25; 40 and 50 mm;

    steel seamless cold-deformed in accordance with GOST 8734-75 with an outer diameter of 8; ten; fourteen; 16 and 22 mm with a wall thickness of at least 1 mm;

    seamless cold- and heat-deformed corrosion-resistant steel in accordance with GOST 9941-81 with an outer diameter of 6; eight; ten; fourteen; 16 and 22 mm with a wall thickness of at least 1 mm. For pipe lines with a pressure of more than 10 MPa (100 kgf / cm2), pipes with an outer diameter of 15 can be used; 25 and 35 mm;

    copper in accordance with GOST 617-72 with an outer diameter of 6 and 8 mm with a wall thickness of at least 1 mm;

    made of aluminum and aluminum alloys in accordance with GOST 18475-82 with an outer diameter of 6 and 8 mm with a wall thickness of at least 1 mm;

    from polyethylene of low density (high pressure) according to the technical specifications of manufacturers with an outer diameter of 6 mm with a wall thickness of 1 mm and an outer diameter of 8 mm with a wall thickness of 1 and 1.6 mm;

    pressure head made of polyethylene in accordance with GOST 18599-83, heavy with an outer diameter of 12; 20 and 25 mm;

    polyvinyl chloride flexible according to the technical specifications of manufacturers with an inner diameter of 4 and 6 mm with a wall thickness of at least 1 mm;

    rubber in accordance with GOST 5496-78 with an inner diameter of 8 mm with a wall thickness of 1.25 mm;

    pneumatic and pneumo-electric with polyethylene tubes (pneumatic cables) according to the technical specifications of manufacturers (polyethylene tubes must have dimensions 6X1; 8X1 and 8X1.6 mm).

    The choice of a specific range of pipes depending on the properties of the transported medium, the magnitude of the measured parameters, the types of transmitted signals and the distances between the connected devices should be carried out in accordance with the working documentation.

    3.17. Piping wiring should be laid along the shortest distances between the connected devices, parallel to walls, ceilings and columns, as far as possible from technological units and electrical equipment, with a minimum number of turns and intersections, in places accessible for installation and maintenance, without sharp fluctuations in ambient temperature, not subject to extreme heat or cold, shock and vibration.

    3.18. Piping wiring for all purposes should be laid at a distance that ensures ease of installation and operation.

    In dusty rooms, piping should be laid in one layer at distances from walls and ceilings, allowing mechanical dust cleaning.

    3.19. The total width of a group of horizontal and vertical pipe conduits, fixed on one structure, should be no more than 600 mm when servicing the conduit on one side and 1200 mm on both sides.

    3.20. All piping, filled with an environment with a temperature of over 60 ° C, laid at a height of less than 2.5 m from the floor, must be fenced.

    3.21. Piping conduits, with the exception of those filled with dry gas or air, must be laid with a slope to ensure condensate drain and gas (air) drainage, and have devices for their removal.

    The direction and magnitude of the slopes must correspond to those specified in the working documentation, and in the absence of such instructions, the wiring must be laid with the following minimum slopes: impulse (see recommended Appendix 3) to manometers for all static pressures, diaphragm or pipe draft gauges, gas analyzers - 1:50; impulse to steam, liquid, air and gas flow meters, level regulators, drainage gravity oil lines of hydraulic jet regulators and drain lines (see recommended Appendix 3) -1: 10.

    The slopes of the heating (see recommended appendix 3) piping must meet the requirements for heating systems. Piping lines requiring different slopes and fixed to common structures should be laid along the largest slope.

    3.22. The working documentation should provide for measures to compensate for thermal elongation of pipe lines. For cases where the working documentation provides for self-compensation of temperature extensions of pipe lines at bends and bends, it should indicate at what distances from the bend (bend) the pipes should be fixed.

    3.23. Metal pipe lines at the transition points through the expansion joints of buildings must have U-shaped expansion joints. Places of installation of expansion joints and their number should be indicated in the working documentation.

    3.24. On pipelines laid with a slope, "U-shaped expansion joints, wefts" and similar devices should be located so that they are the highest or lowest point of the pipework and exclude the possibility of accumulation of air (gas) or condensate in them.

    3.25. The minimum height for laying external pipe wiring should be (in the light): in the impassable part of the territory, in places where people pass - 2.2 m; at intersections with highways - 5 m.

    3.26. Installation of pipe wiring must ensure: strength and tightness of wiring, pipe connections between themselves and their connections to fittings, devices and automation equipment; reliable fastening of pipes to structures.

    3.27. Fastening of pipe wiring to supporting and supporting structures should be carried out with normalized fasteners; fastening of pipe lines by welding is prohibited. The fastening must be carried out without compromising the integrity of the pipes.

    3.28. It is not allowed to fix pipe lines on the outer side of switchboards, housings of devices and automation equipment.

    It is allowed to fix pipe wiring on disassembled technological equipment at selected devices, but not more than at two points.

    Fastening of pipe lines on non-disassembled technological equipment is allowed by agreement with the customer. Piping lines at the points of access to the equipment must have detachable connections.

    3.29. The piping must be secured:

    at a distance of no more than 200 mm from the branch parts (on each side);

    on both sides of bends (pipe bends) at distances that provide self-compensation for thermal elongation of pipe lines;

    on both sides of the fittings for settling and other vessels, if the fittings and vessels are not secured; if the length of the connecting line on either side of the vessel is less than 250 mm, the pipe is not attached to the supporting structure;

    on both sides of the U-shaped expansion joints at a distance of 250 mm from their bend when installing expansion joints at the transition points of pipe lines through expansion joints in the walls.

    3.30. Changing the direction of the piping should generally be done by bending the pipes accordingly. It is allowed to use standardized or normalized bent elements to change the direction of the pipe route.

    3.31. Methods for bending pipes are selected by the installer.

    Curved pipes must meet the following basic requirements:

    a) there should be no folds, cracks, crumples, etc. on the bent part of the pipes;

    b) the ovality of the pipe section at bending points is allowed no more than 10%.

    3.32. The minimum radius of the internal bending curve of pipes should be:

    for cold bent polyethylene pipes:

    PNP - not less than 6D n , where Dн - outside diameter; PVP - not less than 10Dn;

    for hot bent polyethylene pipes - not less than 3Dn;

    for PVC plasticized pipes (flexible), cold bent - not less 3 ;

    for pneumatic cables - not less than 10Dn.

    for steel pipes bent in a cold state - not less than 4Dn, and bent in a hot state - not less than 3Dn;

    for annealed copper pipes bent in a cold state - not less than 2Dn;

    for annealed pipes made of aluminum and aluminum alloys when bending them in a cold state - not less than 3Dn.

    3.33. The connection of pipes during installation is allowed to be carried out both with one-piece and detachable connections. When connecting pipe lines, it is prohibited to eliminate gaps and misalignment of pipes by heating, stretching or bending the pipes.

    3.34. The connection of pipe lines to embedded structures (see recommended Appendix 3) of technological equipment and pipelines, to all devices, automation equipment, switchboards and consoles should be carried out with detachable connections.

    3.35. For detachable connections and pipe connections, normalized threaded connections must be used. In this case, for pipes made of stainless steel, aluminum and aluminum alloys, connecting parts specially designed for these pipes must be used.

    3.36. It is forbidden to place pipe connections of any type: on expansion joints; on curved areas; in places of attachment to supporting and supporting structures; in passages through walls and ceilings of buildings and structures; in places inaccessible for maintenance during operation.

    3.37. Pipe connections should be located at a distance of at least 200 mm from the attachment points.

    3.38. When connecting pipes in group piping, the connections must be offset to allow the tool to work when installing or dismantling the pipe wiring.

    In case of group laying by blocks, the distances between the detachable connections must be indicated in the working documentation, taking into account the block mounting technology.

    3.39. Rubber pipes or pipes made of other elastic material connecting pipe lines with devices and automation equipment must be worn over the entire length of the connecting lugs; pipes must be laid without kinks, freely.

    3.40. Fittings (valves, taps, gearboxes, etc.) installed on pipe lines made of copper, aluminum and plastic pipes must be rigidly fixed to structures.

    3.41. All piping must be labeled. The markings applied to the tags must correspond to the marking of the pipe lines given in the working documentation.

    3.42. The application of protective coatings should be carried out on a well-cleaned and degreased pipe surface. The color of the pipe wiring must be specified in the working documentation.

    Steel pipes designed to protect pipe lines must be painted on the outside. Plastic pipes cannot be painted. Non-ferrous metal pipes are painted only in cases specified in the working documentation.

    3.43. When installing plastic pipes and pneumatic cables, it is necessary to use a minimum number of connections, using the maximum construction length of pipes and pneumatic cables.

    3.44. Plastic pipes and pneumatic cables should be laid over non-combustible structures and laid along them freely, without tension, taking into account the change in length due to temperature differences.

    In places of contact with sharp edges of metal structures and fasteners, non-armored cables and plastic pipes must be protected with gaskets (rubber, polyvinyl chloride) protruding 5 mm on both sides of the edges of the supports and fastening brackets.

    The fastening parts must be installed so as not to deform the cross-section of plastic pipes and pneumatic cables.

    3.45. Compensation for temperature changes in the length of plastic pipe conduits should be ensured through a rational arrangement of movable (free) and fixed (rigid) fasteners and bent elements of the pipe conduit itself (bends, wefts, snake laying).

    3.46. The arrangement of fixed mountings that do not allow the movement of the wiring in the axial direction should be done in such a way as to divide the route into sections, the temperature deformation of which occurs independently of one another and is self-compensating.

    Fasteners should be fixed at junction boxes, cabinets, switchboards, etc., as well as in the middle of sections between two turns.

    In all other cases where the movement of pipes and pneumatic cables in the axial direction is allowed, movable fasteners should be used.

    3.47. Fastening plastic pipes and pneumatic cables when cornering is not allowed.

    The pivot point for horizontal laying must lie on a flat, solid support. At a distance of 0.5-0.7 m from the top of the turn, plastic pipes and pneumatic cables must be fixed with movable fasteners.

    3.48. Installation of plastic pipe wiring must be carried out, avoiding damage to the pipes (cuts, deep scratches, dents, melting, burn-through, etc.). Damaged pipe sections must be replaced.

    3.49. Plastic pipes and pneumatic cables laid openly in places of possible mechanical stress at a height of up to 2.5 m from the floor must be protected from damage by metal casings, pipes or other devices. The design of protective devices must allow their free dismantling and maintenance of pipe lines.

    Pipe sections up to 1 m long for devices, actuators and automation equipment installed on technological pipelines and apparatus may not be protected.

    3.50. Outdoor plastic piping must be protected from direct sunlight.

    3.51. Plastic pipes and pneumatic cables in boxes and trays laid horizontally must be laid loosely without fasteners. When laying in boxes and trays laid vertically, pipes and cables must be fixed at intervals of no more than 1 m.

    In places where the route or branch turns, for all cases of laying the trays, pneumatic cables must be fixed in accordance with clause 3.47 of these rules.

    In boxes, when laying plastic pipes and pneumatic cables, fireproof partitions with a fire resistance limit of at least 0.75 hours must be installed every 50 m.

    As a rule, it is not allowed to lay armored pneumatic cables in ducts.

    Pipes and cables from the box are led out through the holes in its wall or bottom. Plastic sleeves must be installed in the holes.

    3.52. The distances between the places of attachment of plastic pipes or bundles of them should be no more than those indicated in table. 1.

    3.53. Pipes made of plastic pipes, through which liquids or moist gases are transported, as well as plastic pipes at an ambient or filling temperature of 40 ° C and above, must be laid in horizontal sections on solid supporting structures, and in vertical sections the distance between fasteners should be reduced twice in comparison with those indicated in the table. 1.

    Table 1

    3.54. When connecting to devices, equipment and bulkhead connections (taking into account the permissible bending radii), plastic pipes must have a margin of at least 50 mm in case of possible damage during repeated reassembly of the connections.

    3.55. When laying pneumatic cables on cable structures, the following conditions must be met:

    pneumatic cables must be laid in one layer;

    the sag arrow should be formed only under the action of the air cable's own weight and should not exceed 1% of the span length.

    Mounting for horizontal laying should be carried out through one support.

    3.56. When installing metal pipe wiring, it is allowed to use any welding methods that ensure high-quality connections, if the type or method of welding is not specified in the working documentation.

    3.57. Welding of steel pipelines and quality control of welded joints should be carried out in accordance with SNiP 3.05.05-84.

    3.58. The method and technological mode of pipe welding, materials for welding and the procedure for welding control should be adopted in accordance with the standard technological process for welding OST 36-57-81 and OST 36-39-80, approved by the USSR Ministry of Montazhspetsstroy. Types and structural elements of welded seams must comply with GOST 16037-80.

    3.59. One-piece connection of copper pipes must be soldered in accordance with GOST 19249-73.

    Quality control of soldered joints should be carried out by external inspection, as well as by hydraulic or pneumatic testing.

    In appearance, the soldered seams should have a smooth surface. Sinks, captivity, sinks, foreign inclusions and non-siphons are not allowed.

    3.60. Fastening of single metal piping should be done on each support.

    ADDITIONAL INSTALLATION REQUIREMENTS

    OXYGEN PIPE

    3.61. Oxygen piping installation work must be performed by personnel trained in the specific requirements for this work.

    3.62. During the installation and welding of the pipeline, contamination of its inner surface with fats and oils must be excluded.

    3.63. If it is necessary to degrease pipes, fittings and connections, it should be carried out according to the technology provided for in OST 26-04-312-83 (approved by the Minkhimmash), fire-safe solvents and detergents dissolved in water.

    Pipes, fittings and connections intended for pipelines filled with oxygen must be provided with a document certifying that they have been degreased and are suitable for installation.

    3.64. With threaded connections, it is forbidden to wind up flax, hemp, as well as smear with red lead and other materials containing oils and fats.

    ADDITIONAL REQUIREMENTS FOR PIPE INSTALLATION FOR PRESSURE OVER 10 MPa (100 kgf / cm2)

    3.65. Prior to the commencement of work on the installation of pipe wiring over 10 MPa (100 kgf / cm2), responsible persons are appointed from among the engineering and technical workers, who are entrusted with the management and quality control of work on the installation of pipe wiring and paperwork.

    Designated engineers and technicians must be certified after specialized training.

    3.66. All elements of pipe lines for pressure over 10 MPa (100 kgf / cm2) and welding materials supplied to the warehouse of the installation organization are subject to external inspection. At the same time, the availability and quality of the relevant documentation is also checked and an act is drawn up for the acceptance of pipes, fittings, pipeline parts, etc.

    3.67. When installing and adjusting piping of automation systems filled with flammable and toxic liquids and gases, as well as piping when Рy

    і 10 MPa (100 kgf / cm2) should be guided by the requirements of the regulatory documents given in the recommended Appendix 4.

    TESTING PIPE WIRES

    3.68. Fully assembled pipe lines must be tested for strength and tightness in accordance with SNiP 3.05.05-84.

    Type (strength, density), method (hydraulic, pneumatic), duration and assessment of test results should be taken in accordance with the working documentation.

    3.69. The value of the test pressure (hydraulic and pneumatic) for strength and density in pipe lines (impulse, drainage, supply, heating, cooling, auxiliary and command hydraulic systems) in the absence of instructions in the working documentation should be taken in accordance with SNiP 3.05.05-84.

    3.70. Command piping, air-filled at operating pressure Pp

    Ј 0.14 MPa (1.4 kgf / cm2), should be pneumatically tested for strength and density with test pressure R R = 0.3 MPa (3 kgf / cm2).

    3.71. Pressure gauges used for testing must have:

    accuracy class not less than 1.5;

    case diameter not less than 160 mm;

    measurement limits equal to 4/3 of the measured pressure.

    3.72. Tests of plastic pipe lines and pneumatic cables should be carried out at a temperature of the test environment not exceeding 30

    ° WITH.

    3.73. Testing of plastic pipe lines is allowed to be carried out no earlier than 2 hours after the last pipe welding.

    3.74. Before testing for strength and tightness, all pipe conduits, regardless of purpose, must be subjected to:

    a) external examination in order to detect installation defects, conformity of their working documentation and readiness for testing;

    b) purging, and if indicated in the working documentation - flushing.

    3.75. Purging of pipe lines must be carried out with compressed air or inert gas, dried and free from oil and dust.

    Pipelines for steam and water may be purged and flushed with a working medium.

    3.76. Blowing of pipe lines should be carried out with a pressure equal to the working pressure, but not more than 0.6 MPa (6 kgf / cm2).

    If it is necessary to purge at a pressure of more than 0.6 MPa (6 kgf / cm2), purge should be performed in accordance with the instructions given in special schemes for purging process pipelines, agreed with the customer.

    Blowing should be done within 10 minutes until clean air appears.

    Blowing of pipe lines operating at an excess pressure of up to 0.1 MPa (1 kgf / cm2) or an absolute pressure of up to 0.001 to 0.095 MPa (from 0.01 to 0.95 kgf / cm2) should be carried out with air at a pressure of not more than 0.1 MPa (1 kgf / cm2).

    3.77. Flushing of the piping should be carried out until there is a steady flow of clean water from the outlet or drain of the flushed tubing.

    At the end of flushing, the piping must be completely free of water and, if necessary, blown out with compressed air.

    3.78. After purging and flushing, piping should be plugged.

    The design of the plugs should exclude the possibility of their breakdown at test pressures.

    On pipe conduits designed to work with Pp

    і 10 MPa (100 kgf / cm2), plugs or blind lenses with shanks must be installed.

    3.79. The pipelines supplying the test fluid, air or inert gases from pumps, compressors, cylinders, etc. to the pipelines must be pre-tested with hydraulic pressure in the assembled state with shut-off valves and pressure gauges.

    3.80. In hydraulic tests, water shall be used as the test fluid. The water temperature during the tests must be at least 5

    ° WITH.

    3.81. In pneumatic tests, air or an inert gas shall be used as the test medium. Air and inert gases must be free from moisture, oil and dust.

    3.82. For hydraulic and pneumatic testing, the following pressure rise stages are recommended:

    * 0.3 Рпр; * 0.6 Рпр; * up to Рпр; * decreases to Рр [for pipe lines with Рр up to 0.2 MPa (2 kgf / cm2) only the 2nd stage is recommended].

    The pressure on the 1st and 2nd stages is maintained for 1-3 minutes; during this time, according to the readings of the pressure gauge, there is no pressure drop in the pipework.

    Test pressure (3rd stage) is maintained for 5 minutes.

    On pipelines with pressure Pp

    і 10 MPa test pressure is maintained for 10-12 minutes.

    Raising the pressure to the 3rd stage is a strength test.

    Working pressure (4th stage) is maintained for the time required for final inspection and identification of defects. The 4th stage pressure is a density test.

    3.83. Defects are eliminated after reducing the pressure in the piping to atmospheric.

    After elimination of defects, the test is repeated.

    3.84. Piping wiring is considered to be serviceable if no pressure drop occurred on the pressure gauge during the strength test and no leaks were found in the welds and joints during the subsequent tightness test.

    At the end of the tests, an act must be drawn up.

    3.85. Pipelines filled with flammable, toxic and liquefied gases (except for gas pipelines with pressures up to 0.1 MPa (1 kgf / cm2), pipelines filled with oxygen, as well as pipelines for pressures exceeding 10 MPa (100 kgf / cm2), for absolute pressure from 0.001 to 0.095 MPa (from 0.01 to 0.95 kgf / cm2) must be subjected to additional tests for density with the determination of the pressure drop.

    3.86. Tubing should be flushed or purged prior to tightness testing of piping to determine the pressure drop.

    3.87. For piping for pressure 10

    ѕ 100 MPa (100-1000 kgf / cm2) before density tests to determine the pressure drop on the pipe lines, safety valves must be installed, pre-adjusted to open at a pressure exceeding the operating pressure by 8%. Safety valves should be provided for in the working documentation.

    3.88. The density test with the determination of the pressure drop is carried out with air or an inert gas with a test pressure equal to the working pressure (Рпр = Рр ) , except for pipelines for absolute pressure from 0.001 to 0.095 MPa (from 0.01 to 0.95 kgf / cm2), which must be tested with the following pressure:

    a) pipelines filled with flammable, toxic and liquefied gases - 0.1 MPa (1 kgf / cm2);

    b) pipelines filled with conventional media - 0.2 MPa (2 kgf / cm2).

    3.89. The duration of the additional density test and the holding time under test pressure is set in the working documentation, but should be at least for pipelines:

    for pressure from 10 to 100 MPa (from 100 to 1000 kgf / cm2) - 24 h;

    for flammable, toxic and liquefied gases - 24,;

    filled with oxygen - 12,;

    for absolute pressure from 0.001 to 0.095 MPa -12;

    (from 0.01 to 0.95 kgf / cm2)

    3.90. Pipelines are considered to have passed the test if the pressure drop in them does not exceed the values ​​indicated in table. 2.

    table 2

    The specified standards apply to pipe lines with a nominal bore of 50 mm. When testing pipe lines with other nominal diameters, the rate of pressure drop in them is determined by the product of the above pressure drop values ​​by the coefficient calculated by the formula

    K= ---------

    where Dy- nominal bore of the tested pipe wiring, mm.

    3.91. At the end of the density tests of pipe lines with the determination of the pressure drop during the test, an act must be drawn up.

    3.92. When carrying out pneumatic tests, the safety requirements set forth in SNiP III-4-80 and "Rules for the construction and safe operation of pipelines for flammable, toxic and liquefied gases" (PUG-69) must be observed.

    ELECTRICAL WIRING

    3.93. Installation of electrical wiring for automation systems (measurement, control, power, signaling circuits, etc.) with wires and control cables in boxes and on trays, in plastic and steel protective pipes, on cable structures, in cable structures and the ground; installation of electrical wiring in explosive and fire hazardous zones, installation of grounding (grounding) must meet the requirements of SNiP 3.05.06-85, taking into account the specific features of the installation of automation systems set forth in the manuals to the specified SNiP.

    3.94. Connection of single-wire copper conductors of wires and cables with a cross-section of 0.5 and 0.75 mm2 and stranded copper conductors with a cross-section of 0.35; 0.5; 0.75 mm2 to devices, apparatus, terminal assemblies should, as a rule, be soldered, if the design of their terminals allows this (non-separable contact connection).

    If it is necessary to connect single-wire and stranded copper conductors of the indicated cross-sections to devices, devices and assemblies of terminals that have leads and clamps for connecting conductors under a screw or bolt (collapsible contact connection), the conductors of these wires and cables must be terminated with lugs.

    Single-wire copper conductors of wires and cables with a cross section of 1; 1.5; 2.5; 4 mm2 should, as a rule, be connected directly under the screw or bolt, and stranded wires of the same cross-sections - using lugs or directly under the screw or bolt. In this case, the cores of single-wire and multi-wire wires and cables, depending on the design of the terminals and clamps of devices, devices and clamp assemblies, are terminated with a ring or pin; the ends of the stranded conductors (rings, pins) must be soldered, the pin ends can be pressed with pin lugs.

    If the design of leads and clamps of devices, devices, clamp assemblies requires or allows other methods of connecting single-wire and stranded copper conductors of wires and cables, the methods of connection specified in the relevant standards and specifications for these products should be used.

    The connection of aluminum conductors of wires and cables with a cross section of 2.0 mm2 and more to devices, apparatus, and assemblies of terminals should be carried out only with clamps that allow direct connection of aluminum conductors of the corresponding cross sections to them.

    The connection of single-wire conductors of wires and cables (under a screw or soldering) is allowed only to stationary elements of devices and apparatus.

    The connection of conductors of wires and cables to devices, apparatuses and automation equipment that have output devices in the form of plug connectors should be carried out by means of multi-wire (flexible) copper wires or cables laid from clamp assemblies or junction boxes to instruments and automation equipment.

    Collapsible and non-collapsible connections of copper, aluminum and copper-aluminum conductors of wires and cables with leads and clamps of devices, devices, clamp assemblies must be performed in accordance with the requirements of GOST 10434-82, GOST 25154-82, GOST 25705-83, GOST 19104-79 and GOST 23517-79.

    3.95. The connection of steel protective pipes with each other, with broaching boxes, etc. in rooms of all classes should be carried out using standard threaded connections.

    In rooms of all classes, except for explosive and fire hazardous zones, it is allowed to connect steel thin-walled protective pipes with sleeves made of sheet steel or steel pipes of larger diameter, followed by welding around the entire perimeter of the joints: in this case, burn-through of pipes is not allowed.

    3.96. The assembled wiring of automation systems must be subjected to an external examination, which establishes the compliance of the mounted wiring with working documentation and the requirements of these rules. Wiring that meets the specified requirements must be tested for insulation resistance.

    3.97. Measurement of the insulation resistance of electrical wiring of automation systems (measurement, control, power, signaling circuits, etc.) is carried out with a megohmmeter for a voltage of 500-1000 V. The insulation resistance should not be less than 0.5 MΩ.

    When measuring insulation resistance, wires and cables must be connected to the terminal assemblies of panels, cabinets, consoles and junction boxes.

    Devices, apparatus and wiring that do not allow testing with a megohmmeter with a voltage of 500-1000 V must be turned off during the test.

    Based on the results of measuring the insulation resistance, an act is drawn up.

    SHIELDS, STATIVES AND CONSOLES

    3.98. Boards, cabinets and consoles must be handed over by the customer in a finished form for installation with equipment, fittings and installation products, with electrical and pipe internal wiring, prepared for connecting external electrical and pipe wiring and devices, as well as with fasteners for assembling and installing the boards, cabinets and consoles on site.

    3.99. Separate boards, consoles and cabinets should be assembled into composite boards (operator, dispatch) of any configuration using detachable connections.

    Fastening screw connections must be tightly and evenly tightened and secured against self-loosening.

    3.100. Boards, cabinets and consoles should be installed on embedded structures. The exception is small-sized panels placed on walls and columns, and flat cabinets that do not require pre-installation of embedded structures for installation.

    The main method of fixing the support frames of the panels to the embedded structures is one-piece, carried out by welding.

    Boards, cabinets and consoles must be plumbed during installation and then fixed.

    Installation of auxiliary elements (decorative panels, mnemonic diagrams, etc.) should be carried out while maintaining the center lines and verticality of the entire frontal plane of the shield. The angle of inclination of the mnemonic diagram specified in the working documentation must be maintained within the tolerances specified in it.

    3.101. Inputs of electrical and pipe wiring into shields, cabinets and consoles must be carried out in accordance with OST 36.13-76, approved by the USSR Ministry of Montazhspetsstroy.

    3.102. In order to increase the level of industrialization of installation work, as a rule, industrial automation premises should be used, including complete operator rooms (KOP) and complete sensor points (KPD). Industrial automation rooms should be delivered to the facility with mounted panels, cabinets, consoles, pipe and electrical wiring. The site should only carry out work on the connection of external piping and electrical wiring.

    3.103. End seals and connections of pipe and electrical wiring introduced into shields, cabinets, consoles, KOP and KPD must be performed in accordance with the requirements of SNiP 3.05.06-85 and these rules.

    INSTRUMENTS AND AUTOMATION MEANS

    3.104. The installation should accept devices and automation equipment, verified with the preparation of the appropriate protocols.

    In order to ensure the safety of devices and equipment from breakdown, dismantling and theft, their installation must be carried out after the written permission of the general contractor (customer).

    3.105. The inspection of instruments and automation equipment is carried out by the customer or specialized organizations involved by him, performing work on setting up instruments and automation equipment using the methods adopted in these organizations, taking into account the requirements of the instructions of the State Standard and manufacturers.

    3.106. Instruments and automation equipment accepted for installation after verification must be prepared for delivery to the installation site. Moving systems must be locked, the connecting devices must be protected from moisture, dirt and dust.

    Along with the devices and automation equipment, special tools, accessories and fasteners included in their kit, required for installation, must be handed over to the installer.

    3.107. The placement of instruments and automation equipment and their mutual arrangement should be carried out according to the working documentation. Their installation should ensure the accuracy of measurements, free access to the devices and to their shut-off and adjustment devices (taps, valves, switches, adjustment knobs, etc.).

    3.108. In places where devices and automation equipment are installed, which are inaccessible for installation and maintenance, the construction of stairs, wells and platforms must be completed before the start of installation in accordance with the working documentation.

    3.109. Devices and automation equipment should be installed at ambient temperature and relative humidity specified in the manufacturer's installation and operating instructions.

    3.110. External pipe wiring must be connected to the devices in accordance with the requirements of GOST 25164-82 and GOST 025165-82, and electrical wiring in accordance with the requirements of GOST 10434-82, GOST 25154-82, GOST 25705-83, GOST 19104-79 and GOST 23517-79.

    3.111. Fastening of instruments and automation equipment to metal structures (boards, cabinets, stands, etc.) should be carried out in the ways provided for by the design of instruments and automation equipment and the parts included in their set.

    If fasteners are not included in the set of individual instruments and automation equipment, then they must be fixed with normalized fasteners.

    In the presence of vibrations in the places where the devices are installed, the threaded fasteners must have devices that prevent their spontaneous unscrewing (spring washers, lock nuts, cotter pins, etc.).

    3.112. The openings of instruments and automation equipment intended for connecting pipe and electrical wiring must remain plugged until the wiring is connected.

    3.113. The cases of devices and automation equipment must be grounded in accordance with the requirements of the instructions of the manufacturers and SNiP 3.05.06-85.

    3.114. Sensitive elements of liquid thermometers, thermal alarms, manometric thermometers, thermoelectric converters (thermocouples), resistance thermocouples should, as a rule, be located in the center of the measured medium flow. At a pressure over 6 MPa (60 kgf / cm2) and a steam flow rate of 40 m / s and water flow rate of 5 m / s, the immersion depth of the sensitive elements into the medium being measured (from the inner wall of the pipeline) should be no more than 135 mm.

    3.115. The working parts of the surface thermoelectric converters (thermocouples) and resistance thermocouples must fit tightly to the controlled surface.

    Before installing these devices, the place of their contact with pipelines and equipment must be descaled and cleaned to a metallic sheen.

    3.116. Thermoelectric converters (thermocouples) in porcelain fittings are allowed to be immersed in the high temperature zone for the length of the porcelain protective tube.

    3.117. Thermometers with protective covers made of different metals must be immersed in the measured medium to a depth not exceeding that specified in the manufacturer's passport.

    3.118. It is not allowed to lay the capillaries of manometric thermometers on surfaces whose temperature is higher or lower than the ambient air temperature.

    If it is necessary to lay capillaries in places with hot or cold surfaces, there must be air gaps between the latter and the capillary to protect the capillary from heating or cooling, or appropriate thermal insulation must be laid.

    Along the entire length of the gasket, the capillaries of manometric thermometers must be protected from mechanical damage.

    If the length is excessive, the capillary must be rolled into a coil with a diameter of at least 300 mm; the bay must be tied in three places with non-metallic tie and securely fixed to the device.

    3.119. Instruments for measuring the pressure of vapor or liquid, if possible, should be installed at the same level with the point of pressure tapping; if this requirement is impracticable, the working documentation should define a permanent correction to the readings of the device.

    3.120. Liquid U-type gauges are installed strictly vertically. The liquid filling the pressure gauge must be free of contamination and free of air bubbles.

    Spring pressure gauges (vacuum gauges) must be installed in a vertical position.

    3.121. Separation vessels are installed in accordance with the codes or working drawings of the project, as a rule, near the points of impulse collection.

    Separation vessels should be installed so that the control openings of the vessels are at the same level and can be easily serviced by the operating personnel.

    3.122. For piezometric level measurement, the open end of the measuring tube must be set below the minimum measurable level. The gas or air pressure in the measuring tube must ensure the passage of gas (air) through the tube at the maximum liquid level. The gas or air flow rate in piezometric level gauges must be adjusted to a value that covers all losses, leaks and the required speed of the measuring system.

    3.123. The installation of devices for physical and chemical analysis and their selection devices must be carried out in strict accordance with the requirements of the instructions of the manufacturers of devices.

    3.124. When installing indicating and recording devices on the wall or on racks attached to the floor, the scale, diagram, shut-off valves, adjustment and control devices for pneumatic and other sensors should be at a height of 1-1.7 m, and the controls for shut-off valves - in one plane with the scale of the device.

    3.125. Installation of aggregate and computer complexes of the APCS should be carried out according to the technical documentation of the manufacturers.

    3.126. All instruments and automation equipment installed or built into technological devices and pipelines (orifice and selection devices, meters, rotameters, level gauge floats, direct-acting regulators, etc.) must be installed in accordance with the working documentation and with the requirements, specified in the mandatory appendix 5.

    OPTICAL CABLES

    3.127. Before installing an optical cable, you should check its integrity and the attenuation coefficient of the optical signal.

    3.128. The laying of optical cables is carried out in accordance with the working documentation by methods similar to those adopted for the laying of electrical and pipe wiring, as well as communication cables.

    3.129. Optical cables laid openly in places of possible mechanical stress at a height of up to 2.5 m from the floor of the room or service areas must be protected by mechanical covers, pipes or other devices in accordance with the working documentation.

    3.130. When pulling an optical cable, the fastening of the tension means should be carried out behind the power element, using tension limiters and anti-twist devices. The pulling forces must not exceed the values ​​specified in the cable specifications.

    3.131. The optical cable should be laid under the climatic conditions specified in the cable specifications. Laying an optical cable at an air temperature below minus 15 ° C or a relative humidity of more than 80% is not allowed.

    3.132. In the places where the optical cable is connected to the transceiver devices, as well as in the places where the couplings are installed, it is necessary to provide a supply of cable. The margin should be at least 2 m for each spliced ​​optical cable or transceiver device.

    3.133. The optical cable should be fixed on supporting structures for vertical laying, as well as when laying directly on the surface of the walls of the premises - along the entire length after 1 m; when laying horizontally (except for ducts) - at turning points.

    3.134. The assembled optical cable should be monitored by measuring the attenuation of signals in individual fibers of the optical cable and checking it for integrity. The control results are documented by the protocol of measurements of the optical parameters of the mounted optical cable (see mandatory Appendix 1).

    4. INDIVIDUAL TESTS

    4.1. For acceptance by the working commission, automation systems are presented in the amount provided for by the working documentation, and that have passed individual tests.

    4.2. In an individual test, you should check:

    a) compliance of the installed automation systems with working documentation and the requirements of these rules;

    b) pipe lines for strength and tightness;

    c) insulation resistance of electrical wiring;

    d) measurements of signal attenuation in individual fibers of the mounted optical cable according to special instructions.

    4.3. When checking the installed systems for compliance with the working documentation, the compliance of the installation sites of devices and automation equipment, their types and technical characteristics with the equipment specification, compliance with the requirements of this SNiP and operational instructions for the installation methods of devices, automation equipment, switchboards and consoles, and other means of local APCS systems is checked, electrical and pipe wiring.

    4.4. Testing pipe wiring for strength and density, as well as checking the insulation resistance of electrical wiring is carried out in accordance with Sec. 3.

    4.5. After the completion of the individual testing, an acceptance certificate for the assembled automation systems is drawn up, to which documents on positions 4-12, 16, 21 of Appendix 1 are attached.

    4.6. It is allowed to transfer installation work for adjustment by separate systems or separate parts of the complex (for example, dispatching and operator rooms, etc.). The delivery of the assembled automation systems is formalized by an act (see mandatory appendix 1).

    5. PRODUCTION OF COMMISSIONING WORKS

    5.1. Commissioning work must be carried out in accordance with the mandatory Appendix 1 to SNiP 3.05.05-84 and these rules.

    5.2. During commissioning, the requirements of the project and technological regulations of the facility being put into operation, the "Rules for the Installation of Electrical Installations" (PUE), "Rules for the Technical Operation of Consumer Electrical Installations" (PTE) and "Safety Rules for the Operation of Electrical Installations of Consumers" (PTB) must be observed, approved by the USSR Ministry of Energy.

    5.3. During the period of individual testing and comprehensive testing of technological equipment, the customer or, on his behalf, the commissioning organization must ensure the commissioning of automation systems necessary for testing or testing technological equipment in accordance with the project and specifications of the manufacturers.

    5.4. By the beginning of the work on the adjustment of automation systems, the customer must bring all the control and stop valves on which the actuators of the automation systems are mounted; put into operation automatic fire extinguishing and alarm systems.

    5.5. Commissioning of automation systems is carried out in three stages.

    5.6. In the first stage preparatory work is being carried out, and also the working documentation of automation systems, the main characteristics of instruments and automation equipment are being studied. Testing of devices and automation equipment is carried out with the necessary adjustment of individual elements of the equipment.

    5.7. To check devices and automation equipment, the customer is obliged to:

    deliver devices and automation equipment to the production facility to the place of inspection;

    to transfer to the commissioning organization for the period of testing the devices and automation equipment spare parts and special tools supplied by the manufacturers of the tested devices and automation equipment, as well as verification equipment and special tools that are supplied as a set.

    5.8. When checking instruments and automation equipment, they check the compliance of the main technical characteristics of the equipment with the requirements established in the passports and instructions of the manufacturers. The results of the check and adjustment are recorded in the act or passport of the equipment. Defective devices and automation equipment are handed over to the customer for repair or replacement.

    Devices and automation equipment, disassembled, without technical documentation (passports, certificates, etc.), with changes not reflected in the technical specifications, are not accepted for testing. Upon completion of the check, devices and automation equipment are transferred to the installation according to the act.

    5.9. In the second stage work on autonomous adjustment of automation systems is carried out after completion of their installation.

    This is carried out:

    checking the installation of devices and automation equipment for compliance with the requirements of the instructions of manufacturers of devices and automation equipment and working documentation; detected defects in the installation of devices and automation equipment are eliminated by the installation organization;

    replacement of individual defective elements: lamps. diodes, resistors, fuses, modules, etc. serviceable, issued by the customer;

    checking the correctness of marking, connection and phasing of electrical wiring;

    phasing and control of the characteristics of actuators;

    setting up logical and temporary interconnections of alarm, protection, blocking and control systems; checking the correctness of the signal flow;

    preliminary determination of the characteristics of the object, calculation and adjustment of the parameters of the equipment of the systems;

    preparation for switching on and putting into operation of automation systems to ensure individual testing of technological equipment and adjusting the settings of the equipment of the systems in the course of their operation;

    registration of production and technical documentation.

    5.10. The necessary shutdowns or switching of pipe and electrical wiring associated with checking or adjusting individual devices or automation equipment is carried out by the commissioning organization.

    5.11. The inclusion of automation systems in operation should be carried out only when:

    the absence of violations of the requirements for the operating conditions of instruments and automation equipment, communication channels (for temperature, humidity and aggressiveness of the environment, etc.) and for safety measures;

    the presence of the minimum required technological load of the automation object for determining and setting the parameters for setting up instruments and automation equipment, testing and commissioning automation systems;

    compliance of the settings for the actuation of devices, devices and automation equipment specified in the working documentation or established by the customer;

    the customer has documents on the completion of installation work listed in the mandatory Appendix 1.

    5.12. In the third stage work is being carried out on the complex adjustment of automation systems, bringing the settings of instruments and automation equipment, communication channels to values ​​at which the automation systems can be used in operation. In this case, it is carried out in a complex:

    determination of the conformity of the procedure for the testing of devices and elements of alarm systems, protection and control to the algorithms of the working documentation with the identification of the reasons for their failure or their "false" triggering, setting the necessary triggering values ​​for positioning devices;

    determination of the compliance of the throughput of the shut-off and control valves with the requirements of the technological process, the correctness of the circuit breakers;

    determination of the flow characteristics of regulatory bodies and bringing them to the required norm using the adjustment elements available in the design;

    preparation for switching on and putting into operation of automation systems to ensure comprehensive testing of technological equipment;

    clarification of the static and dynamic characteristics of the object, correction of the values ​​of the system settings, taking into account their mutual influence during operation;

    testing and determining the suitability of automation systems to ensure the operation of equipment with a performance that meets the standards for the development of design capacities in the initial period;

    analysis of the operation of automation systems in operation;

    registration of production documentation.

    5.13. The works of the third stage are carried out after the complete completion of construction and installation works, their acceptance by the working commission, in accordance with the requirements of SNiP III-3-81 and these rules on the operating equipment and in the presence of a stable technological process.

    5.14. Removal of flow characteristics and determination of the throughput of regulatory bodies should be carried out provided that the parameters of the medium in the pipeline comply with the standards established by the standard, working documentation or a passport for control valves.

    5.15. The adjustment of the values ​​of the actuation of elements and devices of alarm and protection systems established by the working documentation or other technological documentation should be made only after the customer has approved the new values.

    5.16. To prepare automation systems for operation during the period of complex testing of technological equipment, the customer must submit to the commissioning organization a list of systems necessary for switching on and a schedule for their switching on.

    5.17. The personnel of the commissioning organization dedicated to the maintenance of the automation systems included in the work must be instructed on safety precautions and work rules at the operating enterprise. The briefing is carried out by the customer's services in the amount established by the branch ministries; it must be recorded in the safety log.

    5.18. In the absence of specific requirements for the performance indicators of automation systems in the working documentation, the definition of such requirements is carried out by the customer in agreement with the commissioning organization.

    When determining the requirements for the performance indicators of automation systems, first of all, the requirements for the indicators of the quality and reliability of the system should be set.

    5.19. All switching of operating modes of technological equipment in determining the real characteristics of the automation object must be made by the customer. Switching on and off automation systems should be recorded in the operational log.

    5.20. Commissioning work on automation systems should be carried out in accordance with the requirements given in the working documentation, instructions for manufacturers of instruments and automation equipment or in the industry rules for commissioning completed construction projects approved by the relevant ministries and departments of the USSR in agreement with the USSR Gosstroy.

    5.21. The scope and conditions of commissioning work for individual automation systems are determined in the program developed by the commissioning organization and approved by the customer and providing for the fulfillment of the requirements of paragraphs. 5.5-5.12.

    5.22. The results of the commissioning work are documented in a protocol, which includes an assessment of the system's operation, conclusions and recommendations. The implementation of recommendations for improving the operation of automation systems is carried out by the customer.

    5.23. The transfer of automation systems to operation is carried out by agreement with the customer, both for separately adjusted systems and comprehensively for automated installations, technological equipment units and workshops.

    When automation systems are commissioned for separately adjusted systems, an act of acceptance for operation of automation systems is drawn up in accordance with mandatory Appendix 1.

    The following documentation must be attached to the act:

    a list of settings for devices, instruments and automation equipment and the values ​​of the settings for automatic control (regulation) systems;

    programs and protocols for testing automation systems;

    a schematic diagram of the working documentation for automation with all the changes made and agreed with the customer during the commissioning process (one copy);

    passports and instructions of manufacturers of devices and automation equipment, additional technical documentation received from the customer in the course of commissioning.

    5.24. The end of the commissioning works is fixed by the act of acceptance of automation systems into operation in the amount stipulated by the project.

    ANNEX 1

    Mandatory

    PRODUCTION DOCUMENTATION,

    FORMED DURING INSTALLATION AND ADJUSTMENT

    AUTOMATION SYSTEMS

    Name

    Note

    1. The act of transfer of working documentation for the production of work 2. The certificate of readiness of the facility for the production of works on the installation of automation systems 3. Installation work interruption certificate 4. Certificate of Survey of Hidden Works 5. Certificate of testing pipe lines for strength and tightness 6. The act of pneumatic testing of pipe lines for density with the determination of the pressure drop during the test

    Completeness of documents in accordance with SN 202-81, VSN 281-75 and standards of the design documentation system for construction; suitability for installation work using complete-block and nodal work methods; availability of a permit for the production of work; date of acceptance of documentation and signatures of representatives of the customer, the general contractor and the installation organization The content is established by the VSN in accordance with SNiP 3.01.01-85 Free form According to the form of the certificate of inspection of hidden works SNiP 3.01.01-85 Content is established by VSN The same

    The act should especially note the correctness of the installation of embedded structures and primary devices on technological equipment, apparatus and pipelines in accordance with clause 2.12. Compiled for pipelines filled with flammable, toxic and liquefied gases (except for gas pipelines with a pressure of up to 0.1 MPa); oxygen-filled piping; pipe lines for the pressure of St. 10 MPa and for absolute pressure from 0.001 to 0.095 MPa

    7. Degreasing certificate for fittings, connections and pipes 8. Documents for pipelines with the pressure of St. 10 MPa 9. Welding log 10. Insulation resistance measurement protocol 11. The protocol of heating cables on drums 12. Hazardous Area Wiring Documents 13. Documents on electrical wiring in fire hazardous areas 14. Instrument and automation inspection certificate 15. Permission for the installation of devices and automation equipment 16. List of mounted devices and automation equipment 17. Acceptance certificate of assembled automation systems 18. Permission to amend the working documentation

    To be assembled for pipelines filled with oxygen. 10 MPa Composed for pipelines of I and II categories and for pressure over. 10 MPa Composed only when laying at low temperatures Composed only for hazardous areas Composed only for fire hazardous areas

    19. Acceptance certificate for automation systems 20. Certificate of acceptance of automation systems into operation 21. Protocol for measuring the optical parameters of the mounted optical cable

    The form is attached. The form of the act is attached. 2 SNiP III-3-81 Any shape

    Drawn up upon commissioning for separately adjusted systems In the amount provided by the project

    APPROVED

    _____________________

    ______________________(customer)

    ____________№__________

    G. ______________________

    Commissioning

    automation systems

    Reason: presentation for commissioning of automation systems ________________________________________________

    (name of the commissioning organization)

    Compiled by the commission: __________________________________________

    _____________________________________________________________

    (customer's representative, surname, and .about., position)

    _____________________________________________________________

    (representatives of the commissioning organization, surnames, acting, positions)

    The Commission carried out work to determine the suitability of automation systems for operation ___________________________________

    _____________________________________________________________

    (name of automation systems)

    It was found that the above automation systems:

    1. We ensured the uninterrupted operation of the technological equipment in the prescribed mode during the integrated testing period during ________ with a positive result,

    (time)

    2. Meet technical requirements _____________________

    _____________________________________________________________

    (name of the normative document, project)

    Based on the data received, the commission considers:

    1. Accept the automation systems presented for delivery.

    2. Commissioning works were completed with an assessment of _______________

    Attached to the act are: 1. ________________

    2._________________

    3._________________

    Customer Commissioning organization

    ______________________ _________________________

    (signature) (signature)

    Functional purpose of piping

    Filling environment and its parameters

    Pipe wiring group

    Command and supply systems of pneumatic and hydraulic automatics, heating and cooling

    Water, air

    Hydroautomatics command systems

    Oil at PP

    Ј 1.6 MPa (16 kgf / cm2)
    > 1.6 MPa (16 kgf / cm2)

    Pulse, drainage and auxiliary

    Air, water, steam, inert gases, non-hazardous and non-flammable gases and liquids when Рр up to 10 MPa (100 kgf / cm2)

    According to SN 527-80

    Other gases and liquids in accordance with the scope of CH 527-80

    According to SN 527-80

    TERMS AND DEFINITIONS FOR INSTALLATION OF AUTOMATION SYSTEMS

    1. Embedded structure (embedded element)- a part or assembly unit, permanently built into building structures (channel, angle, sleeve, branch pipe, plate with sleeves, boxes with sand closure, suspended ceiling structures, etc.) or into technological devices and pipelines (bosses, fittings, pockets and sleeves for the device, etc.).

    2. Piping - a set of pipes and pipe cables (pneumatic cables), connections, connections, protective devices and fittings.

    3. Impulse communication line - tubing connecting the pick-off device to an instrumentation, transmitter, or regulator. It is designed to transmit the effects of a controlled or regulated process environment to sensitive organs of instrumentation, sensors or regulators, directly or through separation media.

    Pulse communication lines also include capillaries of manometric thermometers and temperature regulators, connecting temperature-sensitive elements (thermocylinders) with manometric measuring devices of instruments and regulators.

    4. Command line of communication - pipe wiring connecting individual functional units of automation (sensors, switches, secondary measuring instruments, converters, computing, regulating and control devices, actuators). It is designed to transmit command signals (air, water, oil pressure) from transmitting units to receiving units.

    5. Power line - piping connecting measuring instruments and automation equipment to power sources (pumps, compressors and other sources). It is designed to supply liquid (water, oil) or gas (air) to devices and automation equipment (sensors, converters, computing, regulating and control devices, amplifiers, positioners) with excess pressure, varying within specified limits, used as carriers of auxiliary energy during processing and transmission of command signals.

    6. Heating line - pipe wiring, through which heat carriers (air, water, steam, etc.) are supplied (and removed) to heating devices for selection devices, measuring instruments, automation equipment, switchboards and streams of impulse, command and other pipe wiring.

    7. Cooling line - piping through which cooling agents (air, water, brine, etc.) are supplied (and removed) to cooling devices for selected devices, sensors, actuators and other automation equipment.

    8. Auxiliary line - piping by means of which:

    a) protective liquids or gases are supplied to the impulse communication lines, creating counter flows in them to protect against aggressive influences, blockages, clogging and other phenomena that cause damage and failure of selected devices, measuring instruments, automation equipment and the impulse lines themselves;

    b) are supplied to devices, regulators, impulse communication lines of liquid or gas for periodic flushing or purging them during operation;

    c) a parallel flow of a part of the product taken from the technological apparatus or pipeline for analysis is created in order to accelerate the supply of the sample to a measuring device remote from the sampling point (for example, to an analyzer of liquid petroleum products, etc.).

    9. Drainage line - pipe wiring through which blowdown and flushing products (gases and liquids) are discharged from devices and regulators, impulse and command communication lines, auxiliary and other lines to designated places (special containers, atmosphere, sewage, etc.). ).

    10. Tubing block - a certain number of pipes of the required length and configuration, laid and fixed in a certain position and fully prepared for connection with adjacent piping nodes.

    LIST OF BASIC REGULATORY AND TECHNICAL DOCUMENTS FOR TECHNOLOGICAL PIPELINES

    Document

    additional information

    Rules for the construction and safe operation of pipelines for flammable, toxic and liquefied gases

    Approved by the Gosgortekh-supervision of the USSR and agreed with the Gosstroy of the USSR in 1969.

    Safety regulations for the production of the main chemical industry

    Approved by the Gosgortekh-supervision of the USSR, the Ministry of Chemical Industry and the Central Committee of the trade union of workers of the oil, chemical and gas industries and agreed with the Gosstroy of the USSR in 1979.

    Safety rules in explosive and explosive-fire hazardous chemical and petrochemical industries

    Approved by the Gosgortekh-supervision of the USSR and agreed with the Gosstroy of the USSR in 1974.

    Safety rules for acetylene production

    Approved by the Gosgortekh-Supervision of the USSR and the Ministry of Chemical Industry and agreed with the Gosstroy of the USSR in 1977.

    Safety rules for the production, storage and transportation of chlorine

    Approved by the Gosgortekh-Supervision of the USSR and the Ministry of Chemical Industry and agreed with the Gosstroy of the USSR in 1973, in 1983. Changes were made

    Safety rules for inorganic production of the nitrogen industry

    Approved by the Gosgortekh-Supervision of the USSR and the Ministry of Chemical Industry and agreed with the Gosstroy of the USSR in 1976.

    Safety rules for the production of synthetic ethyl alcohol

    Approved by the Gosgortech-Supervision of the USSR, the Ministry of Oil and Gas Industry of the USSR and agreed with the Gosstroy of the USSR in 1981.

    Safety rules in the gas industry of ferrous metallurgy plants

    Approved by the Gosgortekh-supervision of the USSR, the Ministry of Chermet of the USSR and agreed with the Gosstroy of the USSR in 1969.

    Safety regulations in the by-product coke industry

    Approved by the Gosgortech-supervision of the USSR, the USSR Ministry of Cher-Met and agreed with the Gosstroy of the USSR in 1981.

    Minhimprom

    Oxygen Gas Pipeline Design Instruction

    Approved by the Ministry of Chemical Industry and agreed with the USSR Gosstroy, the USSR Gosgortekhnadzor, the USSR Ministry of Internal Affairs GUPO in 1983.

    Safety rules in the gas industry

    Approved by the Gosgortech-supervision of the USSR and agreed with the Gosstroy of the USSR and the All-Union Central Council of Trade Unions in 1979.

    GOST 12.2.060-81 (ST SEV 2083-80)

    Occupational safety standards system. Acetylene pipelines. Safety requirements

    Approved by the USSR State Committee for Standards

    ѕ ѕ

    APPENDIX 5

    Mandatory

    INSTALLATION REQUIREMENTS

    ON TECHNOLOGICAL EQUIPMENT AND PIPELINES

    1. Installation of restricting devices in pipelines should be carried out in accordance with working drawings and standards in compliance with the "Rules for measuring the flow of gases and liquids with standard restricting devices", approved by the State Standard.

    2. Before installing the orifice device, a check must be made with the design data and the picking list:

    a) the diameter of the pipeline and the place of installation;

    b) grade of material of the restriction device;

    c) the direction of flow and the correctness of the "plus" and "minus" markings on the body of the restriction device.

    3. Installation of the restriction device should be carried out in such a way that the markings on its body are accessible for inspection in working order.

    If this requirement is not met, a plate is attached to the orifice device, on which the data placed on the body of the orifice device are applied.

    4. Constriction devices installed on pipelines must be installed in compliance with the basic technical requirements:

    a) the lengths of straight sections of the pipeline before and after the restriction device, specified in the working documentation, must be maintained;

    b) the installation of flanges should be carried out so that the flange planes are parallel to each other and perpendicular to the axis of the pipelines.

    The distance between the flange planes should be equal to the construction length of the restriction device, taking into account the space for gaskets on both sides;

    c) the pipeline in front of the restriction device must be cleaned of dirt, traces of welding and internal protrusions that distort the shape of the flow; on the inner surface of a pipeline section with a length equal to its two outer diameters, in front of and behind the restricting device, there should be no ledges, as well as irregularities visible to the naked eye (dents, welding burrs, etc.);

    d) the alignment of the pipeline and the restricting device must be ensured, as well as the perpendicularity of the end of the restricting device to the axis of the pipeline;

    e) the direction of the arrow indicated on the restriction device must coincide with the direction of the flow of the substance filling the pipeline; the sharp edge of the diaphragm, the rounded part of the nozzle or venturi must be directed against the flow of the measured medium;

    f) gaskets should not protrude into the process pipelines.

    5. Embedded structures for the installation of pressure taps and taps from orifice devices on horizontal and inclined pipelines should be located:

    a) on gas and air pipelines - from above;

    b) on the pipelines of liquid and steam - from the side.

    6. Flow meters (meters, rotameters, etc.) built into process pipelines must be installed in compliance with the following basic requirements:

    a) installation of meters is carried out after completion of installation and thorough cleaning of the pipeline; testing of the pipeline and the meter is carried out simultaneously;

    b) high-speed meters should be installed on straight sections of pipelines in the places indicated in the project;

    c) the flange planes should be parallel to each other and perpendicular to the pipeline axis.

    7. Technological pipelines in the places where rotameters, volumetric and high-speed meters are installed must have bypass lines with appropriate shut-off valves.

    8. If the gauge of the meter is less than the diameter of the pipeline, the meter must be installed between two tapered transition pipes. In this case, shut-off valves must be installed on the main pipeline before and after the branch pipes. The use of adapter flanges is prohibited.

    9. Floats of all types of level gauges must be installed so that the movement of the float and the cable or rod occurs without rubbing. The float travel should be equal to or slightly greater than the maximum level measurement.

    10. Installation of temperature and pressure regulators of direct action on process pipelines should be carried out in such a way that the direction of the arrows on their bodies corresponds to the direction of movement of the measured medium.

    11. The length of straight sections of the pipeline before and after the control valves must correspond to that specified in the project.

    12. If the nominal bore of the control valve does not match the diameter of the pipeline, the valve must be installed by means of tapered transition pipes.

    The use of adapter flanges is prohibited.

    13. All instruments and automation equipment installed or built into technological devices and pipelines - direct-acting regulators, restricting devices, control valves, meters, etc. - should be installed after cleaning and flushing devices and pipelines before their hydraulic strength test and density, on oxygen lines - after degreasing.

    STATE COMMITTEE FOR CONSTRUCTION OF THE USSR

    RESOLUTION

    Amendment N 1 SNiP 3.05.07-85

    "Automation systems"

    Decree of the USSR State Construction Committee of October 25, 1990 N 93 approved and from January 1, 1991 put into effect the Proektmontazhavtomatika of the USSR Ministry of assembly and construction, published below, amendment N 1 SNiP 3.05.7-85 "Automation systems" approved by the USSR State Construction Committee of October 18, 1985 No. 175.

    Clause 1.5 shall be reworded:

    "1.5. When installing and setting up automation systems, documentation should be drawn up in accordance with the mandatory Appendix 1 of these rules."

    Clause 1.6. The words: "equipment after individual testing" shall be replaced with the words: "mounted automation systems in the amount of working documentation".

    Clause 2.5 shall be supplemented with a sub-clause as follows:

    "f) availability of documentation for the installation and testing of pipe lines for pressure over 10 MPa (100 kgf / sq.cm)".

    Clause 2.17. In the first sentence, delete the word “specifications”;

    After the second paragraph, add a new paragraph with the following content:

    "Details of pipe lines for pressure over 10 MPa (100 kgf / sq.cm) are transferred for installation in the form of products prepared for installation (pipes, fittings for them, fittings, hardware, fittings, etc.) or assembled into assembly units completed according to the specification of detailed drawings. Pipe openings must be closed with plugs. Acts or other documents confirming the quality of welded joints in accordance with SNiP 3.05.95-84 must be submitted to products and assembly units with welded seams. "

    Clause 2.18-2.20 shall be excluded.

    Clause 3.51. State the penultimate paragraph in a new edition:

    "Armored pneumatic cables are generally not allowed to be laid in ducts."

    Clause 3.65. In the first sentence, delete the words "blank and".

    Clauses 3.67-3.74 shall be deleted.

    Section 3 shall be supplemented with a subsection as follows:

    "Optical cables

    3.135. Before installing an optical cable, you should check its integrity and the attenuation coefficient of the optical signal.

    3.136. The laying of optical cables is carried out in accordance with the working documentation by methods similar to those adopted for the laying of electrical and pipe wiring, as well as communication cables.

    Optical cables are not allowed to be laid in the same tray, duct or pipe together with other types of wiring for automation systems.

    Do not route single and double fiber cables over cable shelves.

    It is forbidden to use ventilation ducts and shafts and escape routes for laying optical cable.

    3.137. Optical cables laid openly in places of possible mechanical stress at a height of up to 2.5 m from the floor of the room or service areas must be protected by mechanical covers, pipes or other devices in accordance with the working documentation.

    3.138. When pulling an optical cable, the fastening of the tension means should be carried out behind the power element, using tension limiters and anti-twist devices. The pulling forces must not exceed the values ​​specified in the cable specifications.

    3.139. The optical cable should be laid under the climatic conditions specified in the cable specifications. Laying an optical cable at an air temperature below minus 15 degrees C or a relative humidity of more than 80% is not allowed.

    3.140. In the places where the optical cable is connected to the transceiver devices, as well as in the places where the couplings are installed, it is necessary to provide a supply of cable. The margin should be at least 2 m for each spliced ​​optical cable or transceiver device.

    3.141. The optical cable should be fixed on supporting structures for vertical laying, as well as when laying directly on the surface of the walls of the premises - along the entire length after 1 m; when laying horizontally (except for ducts) - at turning points.

    When cornering, the optical cable must be fastened on both sides of the corner at a distance equal to the permissible bending radius of the cable, but not less than 100 mm, counting from the apex of the corner. The turning radius of the optical cable must meet the requirements of the cable specifications.

    When laying an optical cable on single supports, these supports must be installed no more than 1 m apart, and the cable must be fixed on each support.

    3.142. The assembled optical cable should be monitored by measuring the attenuation of signals in individual fibers of the optical cable and checking it for integrity. The control results are documented by the protocol of measurements of the optical parameters of the mounted optical cable (see mandatory Appendix 1) ".

    Clause 4.2 shall be supplemented with the following paragraph:

    "d) measurements of signal attenuation in individual fibers of the mounted optical cable according to special instructions."

    Clause 4.5 after the words "the act is drawn up" shall be stated in a new edition:

    "Acceptance of mounted automation systems, to which documents on positions 4-12, 16, 21 of Appendix 1 are attached."

    Clause 4.6. The second proposal should be reworded:

    "The delivery of the assembled automation systems is formalized by an act (see mandatory appendix 1)".

    Appendix 1, position 17 in the column "Name" the words: "Certificate of acceptance of equipment after individual testing" shall be replaced with the words: "Certificate of acceptance of assembled automation systems"; in the column "Content of the document" the words: "According to the form of the act of Appendix 1 to SNiP III-3-81" shall be replaced with the words: "The form is arbitrary";

    Supplement with position 21 as follows:

    In the column "Name" write: "Protocol for measuring the optical parameters of the mounted optical cable"; in the column "Document content" write: "Free form".

    >

    BUILDING REGULATIONS

    SYSTEMS
    AUTOMATION

    SNiP 3.05.07-85

    STATE COMMITTEE OF THE USSR
    CONSTRUCTION

    MOSCOW 1988

    DEVELOPED by GPI Proektmontazhavtomatika of the USSR Ministry of Montazhspetsstroy ( M. L. Vitebsky- topic leader, V.F. Valetov, R.S.Vinogradova, Ya.V. Grigoriev, A. Ya.Minder, N.N. Pronin).

    INTRODUCED by the USSR Ministry of Montazhspetsstroy.

    PREPARED FOR APPROVAL by the Glavtekhnormirovanie Gosstroy USSR ( B. A. Sokolov).

    With the introduction of SNiP 3.05.07-85 "Automation systems" SNiP III-34-74 "Automation system" will no longer be valid.

    AGREED with the Ministry of Health of the USSR (letter dated December 24, 1984, No. 122-12 / 1684-4), Gosgortekhnadzor of the USSR (letter dated February 6, 1985, No. 14-16 / 88).

    With the change approved by the Resolution of the USSR State Construction Committee of October 25, 1990 No. 93 developed by the Proektmontazhavtomatika Proektmontazhavtomatika Minmontazhspetsstroy USSR, the changed items are marked *.

    These norms and rules apply to the production and acceptance of work on the installation and commissioning of automation systems (control, management and automatic regulation) of technological processes and engineering equipment for the construction of new, expansion, reconstruction and technical re-equipment of existing enterprises, buildings and structures of sectors of the national economy.

    These rules do not apply to the installation of: automation systems for special facilities (nuclear plants, mines, enterprises for the production and storage of explosives, isotopes); railway transport signaling systems; communication and signaling systems; automatics of fire extinguishing and smoke removal systems; instruments using radioisotope measurement methods; devices and automation equipment built into machine tools, machines and other equipment supplied by manufacturers.

    The rules establish requirements for the organization, production and acceptance of work on the installation of devices, automation equipment, boards, consoles, aggregate and computing complexes of automated process control systems (APCS), electrical and pipe wiring, etc., as well as for setting up mounted automation systems.

    The rules must be followed by all organizations and enterprises involved in the design, installation and commissioning of automation systems.

    1. GENERAL PROVISIONS

    1.1. During the installation and commissioning of automation systems, the requirements of these rules, SNiP 3.01.01-85, SNiP III-3-81, SNiP III-4-80 and departmental regulatory documents approved in the manner prescribed by SNiP 1.01.01- 82 *.

    1.2. Work on the installation of automation systems must be carried out in accordance with the approved design and estimate documentation, the work production project (PPR), as well as with the technical documentation of manufacturers.

    1.3. Installation of instruments and automation equipment for the nodal construction method and the complete-block method of installation of technological equipment and pipelines, carried out in accordance with SNiP 3.05.05-84, should be carried out in the process of pre-assembly of technological lines, units and blocks.

    1.4. The general contractor should involve the organization that carries out the installation of automation systems in the consideration of the construction organization project (PIC) in terms of performing installation work using complete-block and nodal methods, the layout of special rooms intended for automation systems (control rooms, operator rooms, control rooms, sensor rooms, etc.) p.), ahead of the time of their construction and transfer for installation.

    1.5.* When installing and setting up automation systems, documentation should be drawn up in accordance with the mandatory Appendix 1 of these rules.

    1.6.* The completion of the installation of automation systems is the completion of individual tests carried out in accordance with Sec. 4 of these rules, and the signing of the acceptance certificate for the assembled automation systems in the amount of working documentation.

    2. PREPARATION FOR PRODUCTION OF INSTALLATION WORKS

    GENERAL REQUIREMENTS

    2.1. The installation of automation systems should be preceded by preparation in accordance with SNiP 3.01.01-85 and these rules.

    2.2. As part of the general organizational and technical training, the following must be determined by the customer and agreed with the general contractor and the installation organization:

    a) the conditions for completing the facility with devices, automation equipment, products and materials supplied by the customer, providing for their delivery to the technological unit. node, line;

    b) a list of devices, automation equipment, aggregate and computer complexes of the automated process control system, mounted with the involvement of the chief installation personnel of manufacturing enterprises;

    c) the conditions for the transportation of switchboard blocks, consoles, group installations of devices, pipe blocks to the installation site.

    2.3. When preparing the installation organization for the production of work, there should be:

    a) working documentation received;

    b) a project for the production of works has been developed and approved;

    c) the acceptance of the construction and technological readiness of the facility for the installation of automation systems has been made;

    d) the acceptance of equipment (instruments, automation equipment, panels, consoles, aggregate and computer complexes of the automated process control system), products and materials from the customer and the general contractor was made;

    e) enlarged assembly of units and blocks was made;

    f) the measures for labor protection and fire safety provided for by the rules and regulations have been carried out.

    2.4. Before starting the installation of automation systems, the installation organization, together with the general contractor and the customer, must resolve the following issues:

    a) advance deadlines have been established for the construction of special premises intended for automation systems, ensuring the timely conduct of individual tests of the technological lines, units and blocks being put into operation;

    b) technological lines, assemblies, blocks and the timing of their transfer for individual tests have been determined after the installation of automation systems;

    c) the necessary production workshops, household and office premises are provided, equipped with heating, lighting and a telephone;

    d) it is envisaged to use the main construction machines at the disposal of the general contractor (vehicles, lifting and unloading machines and mechanisms, etc.) for moving large-sized units (blocks of panels, consoles, pipes, etc.) from the production bases of assembly organizations before installing them in the design position at the construction site;

    f) permanent or temporary networks are provided for supplying electricity, water, compressed air to the facilities, with devices for connecting equipment and tools;

    g) measures are provided in accordance with the project (working draft) to ensure the protection of instruments and automation equipment, panels, consoles, pipe and electrical wiring from the influence of precipitation, groundwater and low temperatures, from pollution and damage, and computer equipment - and from static electricity.

    2.5.* In the working documentation of automation systems accepted for the production of work, the installation organization must check the following:

    a) interconnection with technological, electrical, plumbing and other working documentation;

    b) bindings in working drawings of instruments and automation equipment supplied by manufacturing enterprises complete with technological equipment;

    c) taking into account the requirements of high factory and assembly readiness of equipment, advanced methods of assembly work, maximum transfer of labor-intensive work to assembly and procurement workshops;

    e) the presence of explosive or fire hazardous zones and their boundaries, categories, groups and names of explosive mixtures; places of installation of separating seals and their types;

    f) availability of documentation for the installation and testing of pipe lines for pressure over 10 MPa (100 kgf / cm 2).

    2.6. Acceptance of construction and technological readiness for the installation of automation systems should be carried out in stages for individual complete parts of the facility (control rooms, operator rooms, technological blocks, nodes, lines, etc.).

    2.7. The delivery of products and materials to the facility by the organization assembling the automation systems should be carried out, as a rule, with the help of containers.

    ACCEPTANCE OF THE OBJECT FOR INSTALLATION

    2.8. Before the start of the installation of automation systems at the construction site, as well as in buildings and premises handed over for the installation of automation systems, construction work must be carried out, provided for by the working documentation and the project for the production of works.

    In the building structures of buildings and structures (floors, ceilings, walls, equipment foundations), in accordance with the architectural and construction drawings, there must be:

    centering axes and working elevation marks are applied:

    channels, tunnels, niches, grooves, embedded pipes for hidden wiring, openings for the passage of pipe and electrical wiring with the installation of boxes, sleeves, nozzles, frames and other embedded structures in them;

    platforms for servicing devices and automation equipment have been installed;

    installation openings were left for moving large-sized units and blocks.

    2.9. In special rooms intended for automation systems (see clause 1.4), as well as in production rooms in places intended for the installation of instruments and automation equipment, construction and finishing works must be completed, formwork, scaffolding and scaffolds must be disassembled, not required for the installation of automation systems, as well as garbage.

    2.10. Special rooms intended for automation systems (see clause 1.4) must be equipped with heating, ventilation, lighting, and, if necessary, air conditioning, mounted according to a permanent scheme, have glazing and door locks. The premises must be kept at a temperature of at least 5 ° C.

    After the delivery of these premises for the installation of automation systems, construction work and installation of sanitary systems are not allowed in them.

    2.11. In the premises intended for the installation of technical means of aggregate and computer complexes of the automated process control system, in addition to the requirements of paragraphs. 2.9; 2.10, air conditioning systems must be installed and dust thoroughly removed. Painting the premises with chalk whitewash is prohibited. The windows should be provided with protective equipment from direct sunlight (blinds, curtains).

    2.12. By the beginning of the installation of automation systems on technological, sanitary-technical and other types of equipment, pipelines must be installed:

    embedded and protective structures for the installation of primary devices. Embedded structures for the installation of selective pressure, flow and level devices must end with shut-off valves;

    devices and automation tools built into pipelines, air ducts and apparatus (orifices, volumetric and high-speed meters, rotameters, flow sensors of flow meters and concentrometers, level meters of all types, regulating bodies, etc.).

    2.13. At the facility, in accordance with technological, plumbing, electrical and other working drawings, there should be:

    main pipelines and distribution networks were laid with the installation of fittings for the selection of heat carriers to the heated devices of automation systems, as well as pipelines were laid for the removal of heat carriers;

    equipment was installed and main and distribution networks were laid to provide instruments and means of automation with electricity and energy carriers (compressed air, gas, oil, steam, water, etc.), as well as pipelines were laid for the removal of energy carriers;

    a sewerage network was laid to collect wastewater from drainage pipelines of automation systems;

    the grounding network is made;

    completed work on the installation of automatic fire extinguishing systems.

    2.14. The grounding network for the technical means of aggregate and computer complexes of the APCS must meet the requirements of the enterprises - manufacturers of these technical means.

    2.15. Acceptance of the object is formalized by an act of readiness of the object for the production of works on the installation of automation systems in accordance with the mandatory Appendix 1.

    TRANSFER TO INSTALLATION OF EQUIPMENT, PRODUCTS, MATERIALS AND TECHNICAL DOCUMENTATION

    2.16. The transfer of equipment, products, materials and technical documentation for installation is carried out in accordance with the requirements of the "Rules on Contracts for Capital Construction" approved by the Council of Ministers of the USSR and "Regulations on the relationship of organizations - general contractors with subcontractors" approved by the USSR State Construction Committee and the USSR State Planning Committee ...

    2.17.* Accepted equipment, materials and products must comply with working documentation, state standards, technical specifications and have appropriate certificates, technical passports or other documents certifying their quality. Pipes, fittings and connections for oxygen piping must be degreased, which must be indicated in the documentation confirming this operation.

    When accepting equipment, materials and products, the completeness, the absence of damage and defects, the safety of the paint and special coatings, the safety of the seals, the availability of special tools and devices supplied by the manufacturers are checked.

    Details of pipe lines for pressure over 10 MPa (100 kgf / cm 2) are transferred for installation in the form of products prepared for installation (pipes, fittings for them, fittings, hardware, fittings, etc.) or assembled into assembly units, completed according to the specification of the detail drawings. The pipe openings must be closed with plugs. Acts or other documents confirming the quality of welded joints in accordance with SNiP 3.05.05-84 must be transferred to products and assembly units with welded seams.

    Elimination of equipment defects discovered during the acceptance process is carried out in accordance with the "Rules on Contracts for Capital Construction".

    3. PRODUCTION OF INSTALLATION WORKS

    GENERAL REQUIREMENTS

    3.1. The installation of automation systems should be carried out in accordance with the working documentation, taking into account the requirements of manufacturers of devices, automation equipment, aggregate and computing complexes, provided for by the technical conditions or instructions for the operation of this equipment.

    Installation work should be carried out by an industrial method using small-scale mechanization, mechanized and electrified tools and devices that reduce the use of manual labor.

    3.2. Installation of automation systems should be carried out in two stages (stages):

    In the first stage should be carried out: procurement of mounting structures, assemblies and blocks, electrical wiring elements and their enlarged assembly outside the installation area; checking the presence of embedded structures, openings, holes in building structures and building elements, embedded structures and selected devices on technological equipment and pipelines, the presence of a grounding network; laying pipes and blind boxes for hidden wiring into the foundations, walls, floors and ceilings; marking of routes and installation of supporting and supporting structures for electrical and pipe wiring, actuators, devices.

    In the second stage it is necessary to perform: laying of pipe and electrical wiring on installed structures, installation of shields, cabinets, consoles, instruments and automation equipment, connecting pipe and electrical wiring to them, individual tests.

    3.3. Assembled devices and automation equipment of the electrical branch of the State System of Instruments (GSP), boards and consoles, structures, electrical and pipe wiring to be grounded in accordance with the working documentation must be connected to the ground loop. If there are requirements of manufacturers, the means of aggregate and computing systems must be connected to a special grounding circuit.

    INSTALLATION OF STRUCTURES

    3.4. The marking of the installation sites of structures for instruments and automation equipment should be carried out in accordance with the working documentation.

    When marking, the following requirements must be taken into account:

    when installing structures, hidden wiring, strength and fire resistance of building structures (foundations) should not be disturbed;

    the possibility of mechanical damage to the mounted instruments and automation equipment must be excluded.

    3.5. The distance between the supporting structures on the horizontal and vertical sections of the route for laying pipe and electrical wiring, as well as pneumatic cables should be taken according to the working documentation.

    3.6. Supporting structures must be parallel to each other, as well as parallel or perpendicular (depending on the type of structures) to building structures (foundations).

    3.7. Structures for wall-mounted appliances must be perpendicular to the walls. Racks installed on the floor must be plumb or level. When two or more racks are installed side by side, they must be fastened together with detachable connections.

    3.8. Installation of boxes and trays should be carried out in enlarged blocks assembled in assembly and procurement workshops.

    3.9. Fastening boxes and trays to supporting structures and their connection to each other must be bolted or welded.

    With a bolted connection, the tightness of the connection of boxes and trays with each other and with the supporting structures must be ensured, as well as the reliability of the electrical contact.

    When connecting by welding, burn-through of boxes and trays is not allowed.

    3.10. The location of the boxes after their installation should exclude the possibility of moisture accumulation in them.

    3.11. At the intersection of sedimentary and expansion joints of buildings and structures, as well as on outdoor installations, ducts and trays must have compensating devices.

    3.12. All structures must be painted in accordance with the instructions given in the working documentation.

    3.13. Piping and electrical passages through walls (external or internal) and ceilings must be carried out in accordance with the working documentation.

    PIPE WIRING

    3.14. These rules apply to the installation and testing of piping of automation systems (impulse, command, supply, heating, cooling, auxiliary and drainage according to the recommended Appendix 3) operating at an absolute pressure of 0.001 MPa (0.01 kgf / cm 2) to 100 MPa (1000 kgf / cm 2).

    The rules do not apply to the installation of pipe wiring inside shields and consoles.

    3.15. Installation and testing of piping of automation systems must meet the requirements of SNiP 3.05.05-84 and this SNiP.

    3.16. Equipment, fixtures, tooling, work methods used during the installation of pipe wiring must ensure the possibility of installing the following pipes and pneumatic cables:

    steel water and gas pipelines in accordance with GOST 3262-75 ordinary and light with a nominal bore 8; 15; twenty; 25; 40 and 50 mm;

    steel seamless cold-deformed in accordance with GOST 8734-75 with an outer diameter of 8; ten; fourteen; 16 and 22 mm with a wall thickness of at least 1 mm;

    seamless cold- and heat-deformed corrosion-resistant steel in accordance with GOST 9941-81 with an outer diameter of 6; eight; ten; fourteen; 16 and 22 mm with a wall thickness of at least 1 mm. For pipe lines with a pressure of more than 10 MPa (100 kgf / cm 2), pipes with an outer diameter of 15 can be used; 25 and 35 mm;

    copper in accordance with GOST 617-72 with an outer diameter of 6 and 8 mm with a wall thickness of at least 1 mm;

    made of aluminum and aluminum alloys in accordance with GOST 18475-82 with an outer diameter of 6 and 8 mm with a wall thickness of at least 1 mm;

    from polyethylene of low density (high pressure) according to the technical specifications of manufacturers with an outer diameter of 6 mm with a wall thickness of 1 mm and an outer diameter of 8 mm with a wall thickness of 1 and 1.6 mm;

    pressure head made of polyethylene in accordance with GOST 18599-83, heavy with an outer diameter of 12; 20 and 25 mm;

    polyvinyl chloride flexible according to the technical specifications of manufacturers with an inner diameter of 4 and 6 mm with a wall thickness of at least 1 mm;

    Quality control of soldered joints should be carried out by external inspection, as well as by hydraulic or pneumatic testing.

    In appearance, the soldered seams should have a smooth surface. Sinks, captivity, sinks, foreign inclusions and non-siphons are not allowed.

    3.60. Fastening of single metal piping should be done on each support.

    ADDITIONAL REQUIREMENTS FOR OXYGEN PIPE INSTALLATION

    3.61. Oxygen piping installation work must be performed by personnel trained in the specific requirements for this work.

    3.62. During the installation and welding of the pipeline, contamination of its inner surface with fats and oils must be excluded.

    3.63. If it is necessary to degrease pipes, fittings and connections, it should be carried out according to the technology provided for in OST 26-04-312-83 (approved by the Minkhimmash), fire-safe solvents and detergents dissolved in water.

    Pipes, fittings and connections intended for pipelines filled with oxygen must be provided with a document certifying that they have been degreased and are suitable for installation.

    3.64. With threaded connections, it is forbidden to wind up flax, hemp, as well as smear with red lead and other materials containing oils and fats.

    ADDITIONAL REQUIREMENTS FOR PIPE INSTALLATION FOR PRESSURE OVER 10 MPa (100 kgf / cm 2)

    3.65. Prior to the commencement of work on the installation of pipe wiring over 10 MPa (100 kgf / cm 2), responsible persons are appointed from among the engineering and technical workers, who are entrusted with the management and quality control of work on the installation of pipe wiring and paperwork.

    Designated engineers and technicians must be certified after specialized training.

    3.66. All elements of pipe lines for pressure over 10 MPa (100 kgf / cm 2) and welding materials supplied to the warehouse of the installation organization are subject to external inspection. At the same time, the availability and quality of the relevant documentation is also checked and an act is drawn up for the acceptance of pipes, fittings, pipeline parts, etc.

    3.75. When installing and adjusting piping of automation systems filled with flammable and toxic liquids and gases, as well as piping when Ry³ 10 MPa (100 kgf / cm 2) should be guided by the requirements of the regulatory documents given in the recommended Appendix 4.

    TESTING PIPE WIRES

    3.76. Fully assembled pipe lines must be tested for strength and tightness in accordance with SNiP 3.05.05-84.

    Type (strength, density), method (hydraulic, pneumatic), duration and assessment of test results should be taken in accordance with the working documentation.

    3.77. The value of the test pressure (hydraulic and pneumatic) for strength and density in pipe lines (impulse, drainage, supply, heating, cooling, auxiliary and command hydraulic systems) in the absence of instructions in the working documentation should be taken in accordance with SNiP 3.05.05-84.

    3.78. Command piping, air-filled at operating pressure P p£ 0.14 MPa (1.4 kgf / cm 2), should be tested for strength and density by pneumatic test pressure R p = 0.3 MPa (3 kgf / cm 2).

    3.79. Pressure gauges used for testing must have:

    accuracy class not less than 1.5;

    case diameter not less than 160 mm;

    measurement limits equal to 4/3 of the measured pressure.

    3.80. Tests of plastic pipe lines and pneumatic cables should be carried out at a temperature of the test environment not exceeding 30 ° C.

    3.81. Testing of plastic pipe lines is allowed to be carried out no earlier than 2 hours after the last pipe welding.

    3.82. Before testing for strength and tightness, all pipe conduits, regardless of purpose, must be subjected to:

    a) external examination in order to detect installation defects, conformity of their working documentation and readiness for testing;

    b) purging, and if indicated in the working documentation - flushing.

    3.83. Purging of pipe lines must be carried out with compressed air or inert gas, dried and free from oil and dust.

    Pipelines for steam and water may be purged and flushed with a working medium.

    3.84. Blowing of pipe lines should be carried out with a pressure equal to the working pressure, but not more than 0.6 MPa (6 kgf / cm 2).

    If it is necessary to purge at a pressure of more than 0.6 MPa (6 kgf / cm 2), purge should be performed in accordance with the instructions given in special schemes for purging process pipelines, agreed with the customer.

    Blowing should be done within 10 minutes until clean air appears.

    Blowing of pipe lines operating at an excess pressure of up to 0.1 MPa (1 kgf / cm 2) or an absolute pressure of up to 0.001 to 0.095 MPa (from 0.01 to 0.95 kgf / cm 2) should be carried out with air at a pressure of no more than 0, 1 MPa (1 kgf / cm 2).

    3.85. Flushing of the piping should be carried out until there is a steady flow of clean water from the outlet or drain of the flushed tubing.

    At the end of flushing, the piping must be completely free of water and, if necessary, blown out with compressed air.

    3.86. After purging and flushing, piping should be plugged.

    The design of the plugs should exclude the possibility of their breakdown at test pressures.

    On pipe conduits designed to work with P p³ 10 MPa (100 kgf / cm 2), plugs or blind lenses with shanks must be installed.

    3.87. The pipelines supplying the test fluid, air or inert gases from pumps, compressors, cylinders, etc. to the pipelines must be pre-tested with hydraulic pressure in the assembled state with shut-off valves and pressure gauges.

    3.88. In hydraulic tests, water shall be used as the test fluid. The water temperature during the tests must be at least 5 ° C.

    3.89. In pneumatic tests, air or an inert gas shall be used as the test medium. Air and inert gases must be free from moisture, oil and dust.

    3.90. For hydraulic and pneumatic testing, the following pressure rise stages are recommended:

    1st - 0.3 R pr;

    2nd - 0.6 R pr;

    3rd - up to P pr;

    4th - decreases to Р р [for pipe lines with Р р up to 0.2 MPa (2 kgf / cm 2) only the 2nd stage is recommended].

    The pressure on the 1st and 2nd stages is maintained for 1-3 minutes; during this time, according to the readings of the pressure gauge, there is no pressure drop in the pipework.

    Test pressure (3rd stage) is maintained for 5 minutes.

    On pipelines with a pressure of P p ³ 10 MPa, the test pressure is maintained for 10-12 minutes.

    Raising the pressure to the 3rd stage is a strength test.

    Working pressure (4th stage) is maintained for the time required for final inspection and identification of defects. The 4th stage pressure is a density test.

    3.91. Defects are eliminated after reducing the pressure in the piping to atmospheric.

    After elimination of defects, the test is repeated.

    3.92. Piping wiring is considered to be serviceable if no pressure drop occurred on the pressure gauge during the strength test and no leaks were found in the welds and joints during the subsequent tightness test.

    At the end of the tests, an act must be drawn up.

    3.93. Piping lines filled with flammable, toxic and liquefied gases (except for gas pipelines with pressures up to 0.1 MPa (1 kgf / cm 2), pipe lines filled with oxygen, as well as pipe lines for pressures exceeding 10 MPa (100 kgf / cm 2) , for an absolute pressure from 0.001 to 0.095 MPa (from 0.01 to 0.95 kgf / cm 2) should be subjected to additional density tests to determine the pressure drop.

    3.94. Tubing should be flushed or purged prior to tightness testing of piping to determine the pressure drop.

    3.95. For pipelines for a pressure of 10-100 MPa (100-1000 kgf / cm 2), before density tests with determining the pressure drop on the pipe lines, safety valves must be installed, pre-adjusted to open at a pressure exceeding the operating pressure by 8%. Safety valves should be provided for in the working documentation.

    3.96. The density test with the determination of the pressure drop is carried out with air or an inert gas with a test pressure equal to the working pressure (P pr = P p), except for pipelines for an absolute pressure from 0.001 to 0.095 MPa (from 0.01 to 0.95 kgf / cm 2), which must be tested with the following pressure:

    a) pipelines filled with flammable, toxic and liquefied gases - 0.1 MPa (1 kgf / cm 2);

    b) pipelines filled with conventional media - 0.2 MPa (2 kgf / cm 2).

    3.97. The duration of the additional density test and the holding time under test pressure is set in the working documentation, but should be at least for pipelines:

    for pressure from 10 to 100 MPa (from 100 to 1000 kgf / cm 2) - 24 hours;

    for flammable, toxic and liquefied gases - 24 ";

    filled with oxygen - 12 ";

    for absolute pressure from 0.001 to 0.095 MPa - 12 ";

    (from 0.01 to 0.95 kgf / cm 2)

    3.98. Pipelines are considered to have passed the test if the pressure drop in them does not exceed the values ​​indicated in table. 2.

    table 2

    The specified standards apply to pipe lines with a nominal bore of 50 mm. When testing pipe lines with other nominal diameters, the rate of pressure drop in them is determined by the product of the above pressure drop values ​​by the coefficient calculated by the formula

    where D y is the nominal bore of the tested pipe wiring, mm.

    3.99. At the end of the density tests of pipe lines with the determination of the pressure drop during the test, an act must be drawn up.

    3.100. When carrying out pneumatic tests, the safety requirements set forth in SNiP III-4-80 and "Rules for the construction and safe operation of pipelines for flammable, toxic and liquefied gases" (PUG-69) must be observed.

    ELECTRICAL WIRING

    3.101. Installation of electrical wiring for automation systems (measurement, control, power, signaling circuits, etc.) with wires and control cables in boxes and on trays, in plastic and steel protective pipes, on cable structures, in cable structures and the ground; installation of electrical wiring in explosive and fire hazardous zones, installation of grounding (grounding) must meet the requirements of SNiP 3.05.06-85, taking into account the specific features of the installation of automation systems set forth in the manuals to the specified SNiP.

    3.102. Connection of single-wire copper conductors of wires and cables with a cross-section of 0.5 and 0.75 mm 2 and stranded copper conductors with a cross-section of 0.35; 0.5; 0.75 mm 2 to devices, apparatuses, clamp assemblies should, as a rule, be performed by soldering, if the design of their terminals allows this (non-separable contact connection).

    If it is necessary to connect single-wire and stranded copper conductors of the indicated cross-sections to devices, devices and assemblies of terminals that have leads and clamps for connecting conductors under a screw or bolt (collapsible contact connection), the conductors of these wires and cables must be terminated with lugs.

    Single-wire copper conductors of wires and cables with a cross section of 1; 1.5; 2.5; 4 mm 2 should, as a rule, be connected directly under the screw or bolt, and stranded wires of the same cross-sections - using lugs or directly under the screw or bolt. In this case, the cores of single-wire and multi-wire wires and cables, depending on the design of the terminals and clamps of devices, devices and clamp assemblies, are terminated with a ring or pin; the ends of the stranded conductors (rings, pins) must be soldered, the pin ends can be pressed with pin lugs.

    If the design of leads and clamps of devices, devices, clamp assemblies requires or allows other methods of connecting single-wire and stranded copper conductors of wires and cables, the methods of connection specified in the relevant standards and specifications for these products should be used.

    The connection of aluminum conductors of wires and cables with a cross-section of 2.0 mm 2 and more to devices, apparatus, clamp assemblies should be carried out only with clamps that allow direct connection of aluminum conductors of the corresponding cross-sections to them.

    The connection of single-wire conductors of wires and cables (under a screw or soldering) is allowed only to stationary elements of devices and apparatus.

    The connection of conductors of wires and cables to devices, apparatuses and automation equipment that have output devices in the form of plug connectors should be carried out by means of multi-wire (flexible) copper wires or cables laid from clamp assemblies or junction boxes to instruments and automation equipment.

    Collapsible and non-collapsible connections of copper, aluminum and aluminum-copper conductors of wires and cables with leads and clamps of devices, devices, clamp assemblies must be performed in accordance with the requirements of GOST 10434-82, GOST 25154-82

    3.103. The connection of steel protective pipes with each other, with broaching boxes, etc. in rooms of all classes should be carried out using standard threaded connections.

    In rooms of all classes, except for explosive and fire hazardous zones, it is allowed to connect steel thin-walled protective pipes with sleeves made of sheet steel or steel pipes of larger diameter, followed by welding around the entire perimeter of the joints: in this case, burn-through of pipes is not allowed.

    3.104. The assembled wiring of automation systems must be subjected to an external examination, which establishes the compliance of the mounted wiring with working documentation and the requirements of these rules. Wiring that meets the specified requirements must be tested for insulation resistance.

    3.105. Measurement of the insulation resistance of electrical wiring of automation systems (measurement, control, power, signaling circuits, etc.) is carried out with a megohmmeter for a voltage of 500-1000 V. The insulation resistance should not be less than 0.5 MΩ.

    When measuring insulation resistance, wires and cables must be connected to the terminal assemblies of panels, cabinets, consoles and junction boxes.

    Devices, apparatus and wiring that do not allow testing with a megohmmeter with a voltage of 500-1000 V must be turned off during the test.

    Based on the results of measuring the insulation resistance, an act is drawn up.

    SHIELDS, STATIVES AND CONSOLES

    3.106. Boards, cabinets and consoles must be handed over by the customer in a finished form for installation with equipment, fittings and installation products, with electrical and pipe internal wiring, prepared for connecting external electrical and pipe wiring and devices, as well as with fasteners for assembling and installing the boards, cabinets and consoles on site.

    3.107. Separate boards, consoles and cabinets should be assembled into composite boards (operator, dispatch) of any configuration using detachable connections.

    Fastening screw connections must be tightly and evenly tightened and secured against self-loosening.

    3.108. Boards, cabinets and consoles should be installed on embedded structures. The exception is small-sized panels placed on walls and columns, and flat cabinets that do not require pre-installation of embedded structures for installation.

    The main method of fixing the support frames of the panels to the embedded structures is one-piece, carried out by welding.

    Boards, cabinets and consoles must be plumbed during installation and then fixed.

    Installation of auxiliary elements (decorative panels, mnemonic diagrams, etc.) should be carried out while maintaining the center lines and verticality of the entire frontal plane of the shield. The angle of inclination of the mnemonic diagram specified in the working documentation must be maintained within the tolerances specified in it.

    3.109. Inputs of electrical and pipe wiring into shields, cabinets and consoles must be carried out in accordance with OST 36.13-76, approved by the USSR Ministry of Montazhspetsstroy.

    3.110. In order to increase the level of industrialization of installation work, as a rule, industrial automation premises should be used, including complete operator rooms (KOP) and complete sensor points (KPD). Industrial automation rooms should be delivered to the facility with mounted panels, cabinets, consoles, pipe and electrical wiring. The site should only carry out work on the connection of external piping and electrical wiring.

    3.111. End seals and connections of pipe and electrical wiring introduced into shields, cabinets, consoles, KOP and KPD must be performed in accordance with the requirements of SNiP 3.05.06-85 and these rules.

    INSTRUMENTS AND AUTOMATION MEANS

    3.112. The installation should accept devices and automation equipment, verified with the preparation of the appropriate protocols.

    In order to ensure the safety of devices and equipment from breakdown, dismantling and theft, their installation must be carried out after the written permission of the general contractor (customer).

    3.113. The inspection of instruments and automation equipment is carried out by the customer or specialized organizations involved by him, performing work on setting up instruments and automation equipment using the methods adopted in these organizations, taking into account the requirements of the instructions of the State Standard and manufacturers.

    3.114. Instruments and automation equipment accepted for installation after verification must be prepared for delivery to the installation site. Moving systems must be locked, the connecting devices must be protected from moisture, dirt and dust.

    Along with the devices and automation equipment, special tools, accessories and fasteners included in their kit, required for installation, must be handed over to the installer.

    3.115. The placement of instruments and automation equipment and their mutual arrangement should be carried out according to the working documentation. Their installation should ensure the accuracy of measurements, free access to the devices and to their shut-off and adjustment devices (taps, valves, switches, adjustment knobs, etc.).

    3.116. In places where devices and automation equipment are installed, which are inaccessible for installation and maintenance, the construction of stairs, wells and platforms must be completed before the start of installation in accordance with the working documentation.

    3.117. Devices and automation equipment should be installed at ambient temperature and relative humidity specified in the manufacturer's installation and operating instructions.

    3.118. Connection of external pipe wiring to the devices must be carried out in accordance with the requirements of GOST 25164-82 and GOST 25165-82, and electrical wiring in accordance with the requirements of GOST 10434-82, GOST 25154-82, GOST 25705-83, GOST 19104-79 and GOST 23517-79.

    3.119. Fastening of instruments and automation equipment to metal structures (boards, cabinets, stands, etc.) should be carried out in the ways provided for by the design of instruments and automation equipment and the parts included in their set.

    If fasteners are not included in the set of individual instruments and automation equipment, then they must be fixed with normalized fasteners.

    In the presence of vibrations in the places where the devices are installed, the threaded fasteners must have devices that prevent their spontaneous unscrewing (spring washers, lock nuts, cotter pins, etc.).

    3.120. The openings of instruments and automation equipment intended for connecting pipe and electrical wiring must remain plugged until the wiring is connected.

    3.121. The cases of devices and automation equipment must be grounded in accordance with the requirements of the instructions of the manufacturers and SNiP 3.05.06-85.

    3.122. Sensitive elements of liquid thermometers, thermal alarms, manometric thermometers, thermoelectric converters (thermocouples), resistance thermocouples should, as a rule, be located in the center of the measured medium flow. At a pressure over 6 MPa (60 kgf / cm 2) and a steam flow rate of 40 m / s and water flow rate of 5 m / s, the immersion depth of the sensitive elements into the medium being measured (from the inner wall of the pipeline) should be no more than 135 mm.

    3.123. The working parts of the surface thermoelectric converters (thermocouples) and resistance thermocouples must fit tightly to the controlled surface.

    Before installing these devices, the place of their contact with pipelines and equipment must be descaled and cleaned to a metallic sheen.

    3.124. Thermoelectric converters (thermocouples) in porcelain fittings are allowed to be immersed in the high temperature zone for the length of the porcelain protective tube.

    3.125. Thermometers with protective covers made of different metals must be immersed in the measured medium to a depth not exceeding that specified in the manufacturer's passport.

    3.126. It is not allowed to lay the capillaries of manometric thermometers on surfaces whose temperature is higher or lower than the ambient air temperature.

    If it is necessary to lay capillaries in places with hot or cold surfaces, there must be air gaps between the latter and the capillary to protect the capillary from heating or cooling, or appropriate thermal insulation must be laid.

    Along the entire length of the gasket, the capillaries of manometric thermometers must be protected from mechanical damage.

    If the length is excessive, the capillary must be rolled into a coil with a diameter of at least 300 mm; the bay must be tied in three places with non-metallic tie and securely fixed to the device.

    3.127. Instruments for measuring the pressure of vapor or liquid, if possible, should be installed at the same level with the point of pressure tapping; if this requirement is impracticable, the working documentation should define a permanent correction to the readings of the device.

    3.128. Liquid U-type gauges are installed strictly vertically. The liquid filling the pressure gauge must be free of contamination and free of air bubbles.

    Spring pressure gauges (vacuum gauges) must be installed in a vertical position.

    3.129. Separation vessels are installed in accordance with the codes or working drawings of the project, as a rule, near the points of impulse collection.

    Separation vessels should be installed so that the control openings of the vessels are at the same level and can be easily serviced by the operating personnel.

    3.130. For piezometric level measurement, the open end of the measuring tube must be set below the minimum measurable level. The gas or air pressure in the measuring tube must ensure the passage of gas (air) through the tube at the maximum liquid level. The gas or air flow rate in piezometric level gauges must be adjusted to a value that covers all losses, leaks and the required speed of the measuring system.

    3.131. The installation of devices for physical and chemical analysis and their selection devices must be carried out in strict accordance with the requirements of the instructions of the manufacturers of devices.

    3.132. When installing indicating and recording devices on the wall or on racks attached to the floor, the scale, diagram, shut-off valves, adjustment and control devices for pneumatic and other sensors should be at a height of 1-1.7 m, and the controls for shut-off valves - in one plane with the scale of the device.

    3.133. Installation of aggregate and computer complexes of the APCS should be carried out according to the technical documentation of the manufacturers.

    3.134. All instruments and automation equipment installed or built into technological devices and pipelines (orifice and selection devices, meters, rotameters, level gauge floats, direct-acting regulators, etc.) must be installed in accordance with the working documentation and with the requirements specified in the mandatory appendix 5.

    OPTICAL CABLES

    3.135.* Before installing an optical cable, you should check its integrity and the attenuation coefficient of the optical signal.

    3.136.* The laying of optical cables is carried out in accordance with the working documentation by methods similar to those adopted for the laying of electrical and pipe wiring, as well as communication cables.

    Optical cables are not allowed to be laid in the same tray, duct or pipe together with other types of wiring for automation systems.

    Do not route single and double fiber cables over cable shelves.

    It is forbidden to use ventilation ducts and shafts and escape routes for laying optical cable.

    3.137.* Optical cables laid openly in places of possible mechanical stress at a height of up to 2.5 m from the floor of the room or service areas must be protected by mechanical covers, pipes or other devices in accordance with the working documentation.

    3.138.* When pulling an optical cable, the fastening of the tension means should be carried out behind the power element, using tension limiters and anti-twist devices. The pulling forces must not exceed the values ​​specified in the cable specifications.

    3.139.* The optical cable should be laid under the climatic conditions specified in the cable specifications. Laying an optical cable at an air temperature below minus 15 ° C or a relative humidity of more than 80% is not allowed.

    3.140.* In the places where the optical cable is connected to the transceiver devices, as well as in the places where the couplings are installed, it is necessary to provide a supply of cable. The margin should be at least 2 m for each spliced ​​optical cable or transceiver device.

    3.141.* The optical cable should be fixed on supporting structures for vertical laying, as well as when laying directly on the surface of the walls of the premises - along the entire length after 1 m; when laying horizontally (except for ducts) - at turning points.

    When cornering, the optical cable must be fastened on both sides of the corner at a distance equal to the permissible bending radius of the cable, but not less than 100 mm, counting from the apex of the corner. The turning radius of the optical cable must meet the requirements of the cable specifications.

    When laying an optical cable on single supports, these supports must be installed no more than 1 m apart, and the cable must be fixed on each support.

    3.142.* The assembled optical cable should be monitored by measuring the attenuation of signals in individual fibers of the optical cable and checking it for integrity. The control results are documented by the protocol of measurements of the optical parameters of the mounted optical cable (see mandatory Appendix 1).

    4. INDIVIDUAL TESTS

    4.1. For acceptance by the working commission, automation systems are presented in the amount provided for by the working documentation, and that have passed individual tests.

    4.2.* In an individual test, you should check:

    a) compliance of the installed automation systems with working documentation and the requirements of these rules;

    b) pipe lines for strength and tightness;

    c) insulation resistance of electrical wiring;

    d) measurements of signal attenuation in individual fibers of the mounted optical cable according to special instructions.

    4.3. When checking the installed systems for compliance with the working documentation, the compliance of the installation sites of devices and automation equipment, their types and technical characteristics with the equipment specification, compliance with the requirements of this SNiP and operational instructions for the installation methods of devices, automation equipment, switchboards and consoles, and other means of local APCS systems is checked, electrical and pipe wiring.

    4.4. Testing pipe wiring for strength and density, as well as checking the insulation resistance of electrical wiring is carried out in accordance with Sec. 3.

    4.5.* After the completion of the individual testing, an acceptance certificate for the assembled automation systems is drawn up, to which documents on positions 4-12, 16, 21 of Appendix 1 are attached.

    4.6.* It is allowed to transfer installation work for adjustment by separate systems or separate parts of the complex (for example, dispatching and operator rooms, etc.). The delivery of the assembled automation systems is formalized by an act (see mandatory appendix 1).

    5. PRODUCTION OF COMMISSIONING WORKS

    5.1. Commissioning work must be carried out in accordance with the mandatory Appendix 1 to SNiP 3.05.05-84 and these rules.

    5.2. During commissioning, the requirements of the project and the process regulations of the facility being put into operation, the "Electrical Installation Rules" (PUE), "Rules for the Technical Operation of Consumer Electrical Installations" (PTE) and "Safety Rules for the Operation of Consumer Electrical Installations" (PTB) must be observed, approved by the USSR Ministry of Energy.

    5.3. During the period of individual testing and comprehensive testing of technological equipment, the customer or, on his behalf, the commissioning organization must ensure the commissioning of automation systems necessary for testing or testing technological equipment in accordance with the project and specifications of the manufacturers.

    5.4. By the beginning of the work on the adjustment of automation systems, the customer must bring all the control and stop valves on which the actuators of the automation systems are mounted; put into operation automatic fire extinguishing and alarm systems.

    5.5. Commissioning of automation systems is carried out in three stages.

    5.6. In the first stage preparatory work is being carried out, and also the working documentation of automation systems, the main characteristics of instruments and automation equipment are being studied. Testing of devices and automation equipment is carried out with the necessary adjustment of individual elements of the equipment.

    5.7. To check devices and automation equipment, the customer is obliged to:

    deliver devices and automation equipment to the production facility to the place of inspection;

    to transfer to the commissioning organization for the period of testing the devices and automation equipment spare parts and special tools supplied by the manufacturers of the tested devices and automation equipment, as well as verification equipment and special tools that are supplied as a set.

    5.8. When checking instruments and automation equipment, they check the compliance of the main technical characteristics of the equipment with the requirements established in the passports and instructions of the manufacturers. The results of the check and adjustment are recorded in the act or passport of the equipment. Defective devices and automation equipment are handed over to the customer for repair or replacement.

    Devices and automation equipment, disassembled, without technical documentation (passports, certificates, etc.), with changes not reflected in the technical specifications, are not accepted for testing. Upon completion of the check, devices and automation equipment are transferred to the installation according to the act.

    5.9. In the second stage work on autonomous adjustment of automation systems is carried out after completion of their installation.

    This is carried out:

    checking the installation of devices and automation equipment for compliance with the requirements of the instructions of manufacturers of devices and automation equipment and working documentation; detected defects in the installation of devices and automation equipment are eliminated by the installation organization;

    replacement of individual defective elements: lamps, diodes, resistors, fuses, modules, etc. serviceable, issued by the customer;

    checking the correctness of marking, connection and phasing of electrical wiring;

    phasing and control of the characteristics of actuators;

    setting up logical and temporary interconnections of alarm, protection, blocking and control systems; checking the correctness of the signal flow;

    preliminary determination of the characteristics of the object, calculation and adjustment of the parameters of the equipment of the systems;

    preparation for switching on and putting into operation of automation systems to ensure individual testing of technological equipment and adjusting the settings of the equipment of the systems in the course of their operation;

    registration of production and technical documentation.

    5.10. The necessary shutdowns or switching of pipe and electrical wiring associated with checking or adjusting individual devices or automation equipment is carried out by the commissioning organization.

    5.11. The inclusion of automation systems in operation should be carried out only when:

    the absence of violations of the requirements for the operating conditions of instruments and automation equipment, communication channels (for temperature, humidity and aggressiveness of the environment, etc.) and for safety measures;

    the presence of the minimum required technological load of the automation object for determining and setting the parameters for setting up instruments and automation equipment, testing and commissioning automation systems;

    compliance of the settings for the actuation of devices, devices and automation equipment specified in the working documentation or established by the customer;

    the customer has documents on the completion of installation work listed in the mandatory Appendix 1.

    5.12. In the third stage work is being carried out on the complex adjustment of automation systems, bringing the settings of instruments and automation equipment, communication channels to values ​​at which the automation systems can be used in operation. In this case, it is carried out in a complex:

    determination of the conformity of the procedure for testing devices and elements of alarm systems, protection and control to the algorithms of the working documentation with the identification of the reasons for their failure or "false" triggering, setting the necessary triggering values ​​for positioning devices;

    determination of the compliance of the throughput of the shut-off and control valves with the requirements of the technological process, the correctness of the circuit breakers;

    determination of the flow characteristics of regulatory bodies and bringing them to the required norm using the adjustment elements available in the design;

    preparation for switching on and putting into operation of automation systems to ensure comprehensive testing of technological equipment;

    clarification of the static and dynamic characteristics of the object, correction of the values ​​of the system settings, taking into account their mutual influence during operation;

    testing and determining the suitability of automation systems to ensure the operation of equipment with a performance that meets the standards for the development of design capacities in the initial period;

    analysis of the operation of automation systems in operation;

    registration of production documentation.

    5.13. The works of the third stage are carried out after the complete completion of construction and installation works, their acceptance by the working commission, in accordance with the requirements of SNiP III-3-81 and these rules on the operating equipment and in the presence of a stable technological process.

    5.14. Removal of flow characteristics and determination of the throughput of regulatory bodies should be carried out provided that the parameters of the medium in the pipeline comply with the standards established by the standard, working documentation or a passport for control valves.

    5.15. The adjustment of the values ​​of the actuation of elements and devices of alarm and protection systems established by the working documentation or other technological documentation should be made only after the customer has approved the new values.

    5.16. To prepare automation systems for operation during the period of complex testing of technological equipment, the customer must submit to the commissioning organization a list of systems necessary for switching on and a schedule for their switching on.

    5.17. The personnel of the commissioning organization dedicated to the maintenance of the automation systems included in the work must be instructed on safety precautions and work rules at the operating enterprise. The briefing is carried out by the customer's services in the amount established by the branch ministries; it must be recorded in the safety log.

    5.18. In the absence of specific requirements for the performance indicators of automation systems in the working documentation, the definition of such requirements is carried out by the customer in agreement with the commissioning organization.

    When determining the requirements for the performance indicators of automation systems, first of all, the requirements for the indicators of the quality and reliability of the system should be set.

    5.19. All switching of operating modes of technological equipment in determining the real characteristics of the automation object must be made by the customer. Switching on and off automation systems should be recorded in the operational log.

    5.20. Commissioning work on automation systems should be carried out in accordance with the requirements given in the working documentation, instructions for manufacturers of instruments and automation equipment or in the industry rules for commissioning completed construction projects approved by the relevant ministries and departments of the USSR in agreement with the USSR Gosstroy.

    5.21. The scope and conditions of commissioning work for individual automation systems are determined in the program developed by the commissioning organization and approved by the customer and providing for the fulfillment of the requirements of paragraphs. 5.5-5.12.

    5.22. The results of the commissioning work are documented in a protocol, which includes an assessment of the system's operation, conclusions and recommendations. The implementation of recommendations for improving the operation of automation systems is carried out by the customer.

    5.23. The transfer of automation systems to operation is carried out by agreement with the customer, both for separately adjusted systems and comprehensively for automated installations, technological equipment units and workshops.

    When automation systems are commissioned for separately adjusted systems, an act of acceptance for operation of automation systems is drawn up in accordance with mandatory Appendix 1.

    The following documentation must be attached to the act:

    a list of settings for devices, instruments and automation equipment and the values ​​of the settings for automatic control (regulation) systems;

    programs and protocols for testing automation systems;

    a schematic diagram of the working documentation for automation with all the changes made and agreed with the customer during the commissioning process (one copy);

    passports and instructions of manufacturers of devices and automation equipment, additional technical documentation received from the customer in the course of commissioning.

    5.24. The end of the commissioning works is fixed by the act of acceptance of automation systems into operation in the amount stipulated by the project.

    ANNEX 1*
    Mandatory

    PRODUCTION DOCUMENTATION DRAFTED DURING INSTALLATION AND ADJUSTMENT OF AUTOMATION SYSTEMS

    Name

    Note

    1. The act of transfer of working documentation for the production of work

    Completeness of documents in accordance with SN 202-81, VSN 281-75 and standards of the design documentation system for construction; suitability for installation work using complete-block and nodal work methods; availability of a permit for the production of work; date of acceptance of documentation and signatures of representatives of the customer, general contractor and installation organization

    2. The certificate of readiness of the facility for the production of works on the installation of automation systems

    The act should especially note the correctness of the installation of embedded structures and primary devices on technological equipment, apparatus and pipelines in accordance with clause 2.12

    3. Installation work interruption certificate

    Any shape

    4. Certificate of Survey of Hidden Works

    According to the form of the certificate of inspection of hidden works SNiP 3.01.01-85

    5. Certificate of testing pipe lines for strength and tightness

    6. The act of pneumatic testing of pipe lines for density with the determination of the pressure drop during the test

    It is compiled for pipelines filled with flammable, toxic and liquefied gases (except for gas pipelines with a pressure of up to 0.1 MPa); oxygen-filled piping; pipe lines for the pressure of St. 10 MPa and for absolute pressure from 0.001 to 0.095 MPa

    7. Degreasing certificate for fittings, connections and pipes

    Composed on oxygen-filled piping

    8. Documents for pipelines with the pressure of St. 10 MPa

    It is compiled for pipe lines with the pressure of St. 10 MPa

    9. Welding log

    It is made for pipelines of I and II categories and for pressure of St. 10 MPa

    10. Insulation resistance measurement protocol

    11. The protocol of heating cables on drums

    Formulated only when laid at low temperatures

    12. Hazardous Area Wiring Documents

    Types of documents are established by the BCH

    Available only for hazardous areas

    13. Documents on electrical wiring in fire hazardous areas

    Designed for fire hazardous areas only

    14. Instrument and automation inspection certificate

    Any shape

    15. Permission for the installation of devices and automation equipment

    16. List of mounted devices and automation equipment

    Any shape

    17. Acceptance certificate of assembled automation systems

    Any shape

    18. Permission to amend the working documentation

    Form according to GOST 21201-78

    19. Acceptance certificate for automation systems

    Form attached

    Issued upon commissioning according to separately adjusted systems

    20. Certificate of acceptance of automation systems into operation

    According to the form of the act adj. 2 SNiP III-3-81

    To the extent stipulated by the project

    21. Protocol for measuring the optical parameters of the mounted optical cable

    Any shape

    APPROVED

    ______________________

    ______________________

    (customer)

    ____________ № __________

    G. ______________________

    Commissioning

    automation systems

    Reason: presentation for commissioning of automation systems

    ________________________________________________________________________

    (name of the commissioning organization)

    Compiled by the commission: ______________________________________________________

    ________________________________________________________________________

    (customer's representative, surname, and .about., position)

    ________________________________________________________________________

    (representatives of the commissioning organization, names, etc. about., positions)

    The Commission carried out work to determine the suitability of automation systems for operation _____________________________________________________________

    ________________________________________________________________________

    (name of automation systems)

    It was found that the above automation systems:

    1. We ensured the uninterrupted operation of the technological equipment in the specified mode during the integrated testing period during ________ with a positive

    (time)

    result.

    2. Meet technical requirements __________________________________

    _________________________________________________________________________

    (name of the normative document, project)

    Based on the data received, the commission considers:

    1. Accept the automation systems presented for delivery.

    2. Commissioning works were completed with an assessment of ____________________________

    Attached to the act are: 1. ________________

    2. _________________

    3. _________________

    Customer Commissioning organization

    ______________________ _________________________

    (signature) (signature)

    Functional purpose of piping

    Filling environment and its parameters

    Pipe wiring group

    Command and supply systems of pneumatic and hydraulic automatics, heating and cooling

    Water, air

    Hydroautomatics command systems

    Oil at P p £ 1.6 MPa

    (16 kgf / cm 2)

    »» P p> 1.6 MPa

    (16 kgf / cm 2)

    Pulse, drainage and auxiliary

    Air, water, steam, inert gases, non-hazardous and non-flammable gases and liquids when

    P p up to 10 MPa

    (100 kgf / cm 2)

    According to SN 527-80

    Other gases and liquids in accordance with the scope of CH 527-80

    According to SN 527-80

    TERMS AND DEFINITIONS FOR INSTALLATION OF AUTOMATION SYSTEMS

    1. Embedded structure (embedded element)- a part or assembly unit, permanently built into building structures (channel, angle, sleeve, branch pipe, plate with sleeves, boxes with sand closure, suspended ceiling structures, etc.) or into technological devices and pipelines (bosses, fittings, pockets and sleeves for the device, etc.).

    2. Piping- a set of pipes and pipe cables (pneumatic cables), connections, connections, protective devices and fittings.

    3. Pulse communication line- piping connecting the take-off device to the instrumentation, sensor or regulator. It is designed to transmit the effects of a controlled or regulated process environment to sensitive organs of instrumentation, sensors or regulators, directly or through separation media.

    Pulse communication lines also include capillaries of manometric thermometers and temperature regulators, connecting temperature-sensitive elements (thermocylinders) with manometric measuring devices of instruments and regulators.

    4. Command line of communication- pipe wiring connecting separate functional units of automation (sensors, switches, secondary measuring devices, converters, computing, regulating and controlling devices, actuators). It is designed to transmit command signals (air, water, oil pressure) from transmitting units to receiving units.

    5. Power line- piping connecting measuring instruments and automation equipment to power sources (pumps, compressors and other sources). It is designed to supply liquid (water, oil) or gas (air) to devices and automation equipment (sensors, converters, computing, regulating and control devices, amplifiers, positioners) with excess pressure, varying within specified limits, used as carriers of auxiliary energy during processing and transmission of command signals.

    6. Heating line- pipe wiring, by means of which coolants (air, water, steam, etc.) are supplied (and removed) to heating devices for selection devices, measuring instruments, automation equipment, switchboards and streams of impulse, command and other pipe wiring.

    7. Cooling line- piping, through which cooling agents (air, water, brine, etc.) are supplied (and removed) to the cooling devices of selected devices, sensors, actuators and other automation equipment.

    8. Auxiliary line- piping by means of which:

    a) protective liquids or gases are supplied to the impulse communication lines, creating counter flows in them to protect against aggressive influences, blockages, clogging and other phenomena that cause damage and failure of selected devices, measuring instruments, automation equipment and the impulse lines themselves;

    b) are supplied to devices, regulators, impulse communication lines of liquid or gas for periodic flushing or purging them during operation;

    c) a parallel flow of a part of the product taken from the technological apparatus or pipeline for analysis is created in order to accelerate the supply of the sample to a measuring device remote from the sampling point (for example, to an analyzer of liquid petroleum products, etc.).

    9. Drainage line- piping, through which the products of purging and flushing (gases and liquids) are discharged from devices and regulators, impulse and command communication lines, auxiliary and other lines to designated places (special containers, atmosphere, sewage, etc.).

    10. Pipe block- a certain number of pipes of the required length and configuration, laid and fixed in a certain position and fully prepared for connection with adjacent piping nodes.

    LIST OF BASIC REGULATORY AND TECHNICAL DOCUMENTS FOR TECHNOLOGICAL PIPELINES

    Document

    additional information

    Rules for the construction and safe operation of pipelines for flammable, toxic and liquefied gases

    Approved by the Gosgortekhnadzor of the USSR and agreed with the Gosstroy of the USSR in 1969.

    Safety regulations for the production of the main chemical industry

    Approved by the Gosgortekhnadzor of the USSR, the Ministry of Chemical Industry and the Central Committee of the trade union of workers of the oil, chemical and gas industries and agreed with the Gosstroy of the USSR in 1979.

    Safety rules in explosive and explosive fire hazardous chemical and petrochemical industries

    Approved by the Gosgortekhnadzor of the USSR and agreed with the Gosstroy of the USSR in 1974.

    Safety rules for acetylene production

    Approved by the Gosgortekhnadzor of the USSR and the Ministry of Chemical Industry and agreed with the Gosstroy of the USSR in 1977.

    Safety rules for the production, storage and transportation of chlorine

    Approved by the Gosgortekhnadzor of the USSR and the Ministry of Chemical Industry and agreed with the Gosstroy of the USSR in 1973, in 1983. Changes were made

    Safety rules for inorganic production of the nitrogen industry

    Approved by the Gosgortekhnadzor of the USSR and the Ministry of Chemical Industry and agreed with the Gosstroy of the USSR in 1976.

    Safety rules for the production of synthetic ethyl alcohol

    Approved by the Gosgortekhnadzor of the USSR, the Ministry of Petroleum Engineering of the USSR and agreed with the Gosstroy of the USSR in 1981.

    Safety rules in the gas industry of ferrous metallurgy plants

    Approved by the Gosgortekhnadzor of the USSR, the Ministry of Chermet of the USSR and agreed with the Gosstroy of the USSR in 1969.

    Safety regulations in the by-product coke industry

    Approved by the Gosgortekhnadzor of the USSR, the Ministry of Chermet of the USSR and agreed with the Gosstroy of the USSR in 1981.

    Minhimprom

    Oxygen Gas Pipeline Design Instruction

    Approved by the Ministry of Chemical Industry and agreed with the USSR Gosstroy, the USSR Gosgortekhnadzor, the USSR Ministry of Internal Affairs GUPO in 1983.

    Safety rules in the gas industry

    Approved by the Gosgortekhnadzor of the USSR and agreed with the Gosstroy of the USSR and the All-Union Central Council of Trade Unions in 1979.

    GOST 12.2.060-81 (ST SEV 2083-80)

    Occupational safety standards system.

    Approved by the USSR State Committee for Standards

    Acetylene pipelines.

    Safety requirements

    APPENDIX 5
    Mandatory

    REQUIREMENTS FOR INSTALLATION OF DEVICES IN PROCESS EQUIPMENT AND PIPELINES

    1. The installation of restricting devices in pipelines should be carried out in accordance with the working drawings and standards in compliance with the "Rules for measuring the flow of gases and liquids with standard restricting devices" approved by the State Standard.

    2. Before installing the restriction device, a reconciliation with the design data and the picking list must be made:

    a) the diameter of the pipeline and the place of installation;

    b) grade of material of the restriction device;

    c) the direction of flow and the correctness of the designation "plus" and "minus" on the body of the restricting device.

    3. The installation of the restriction device must be carried out in such a way that, in working order, the markings on its body are accessible for inspection.

    If this requirement is not met, a plate is attached to the orifice device, on which the data placed on the body of the orifice device are applied.

    4. Restriction devices installed on pipelines must be installed in compliance with the basic technical requirements:

    a) the lengths of straight sections of the pipeline before and after the restriction device, specified in the working documentation, must be maintained;

    b) the installation of flanges should be carried out so that the flange planes are parallel to each other and perpendicular to the axis of the pipelines.

    The distance between the flange planes should be equal to the construction length of the restriction device, taking into account the space for gaskets on both sides;

    c) the pipeline in front of the restriction device must be cleaned of dirt, traces of welding and internal protrusions that distort the shape of the flow; on the inner surface of a pipeline section with a length equal to its two outer diameters, in front of and behind the restricting device, there should be no ledges, as well as irregularities visible to the naked eye (dents, welding burrs, etc.);

    d) the alignment of the pipeline and the restricting device must be ensured, as well as the perpendicularity of the end of the restricting device to the axis of the pipeline;

    e) the direction of the arrow indicated on the restriction device must coincide with the direction of the flow of the substance filling the pipeline; the sharp edge of the diaphragm, the rounded part of the nozzle or venturi must be directed against the flow of the measured medium;

    f) gaskets should not protrude into the process pipelines.

    5. Embedded structures for the installation of pressure taps and taps from orifice devices on horizontal and inclined pipelines should be located:

    a) on gas and air pipelines - from above;

    b) on the pipelines of liquid and steam - from the side.

    6. Flow meters (counters, rotameters, etc.) built into process pipelines must be installed in compliance with the following basic requirements:

    a) installation of meters is carried out after completion of installation and thorough cleaning of the pipeline; testing of the pipeline and the meter is carried out simultaneously;

    b) high-speed meters should be installed on straight sections of pipelines in the places indicated in the project;

    c) the flange planes should be parallel to each other and perpendicular to the pipeline axis.

    7. Technological pipelines in the places where rotameters, volumetric and high-speed meters are installed must have bypass lines with appropriate shut-off valves.

    8. If the gauge of the meter is less than the diameter of the pipeline, the meter must be installed between two tapered transition pipes. In this case, shut-off valves must be installed on the main pipeline before and after the branch pipes. The use of adapter flanges is prohibited.

    9. Floats of all types of level gauges must be installed so that the movement of the float and the cable or rod occurs without rubbing. The float travel should be equal to or slightly greater than the maximum level measurement.

    10. The installation of temperature and pressure regulators of direct action on technological pipelines should be carried out in such a way that the direction of the arrows on their bodies corresponds to the direction of movement of the measured medium.

    11. The length of straight sections of the pipeline before and after the control valves must correspond to that specified in the project.

    12. If the nominal bore of the control valve does not match the diameter of the pipeline, the valve must be installed by means of tapered transition pipes.

    The use of adapter flanges is prohibited.

    13. All instruments and automation equipment installed or built into technological devices and pipelines - direct-acting regulators, restricting devices, control valves, meters, etc. - should be installed after cleaning and flushing devices and pipelines before their hydraulic strength and density testing, on oxygen pipelines - after degreasing.

    1. General Provisions. 1

    2. Preparation for installation work. 2

    General requirements. 2

    Acceptance of the object for installation .. 3

    Transfer to installation of equipment, products, materials and technical documentation. 4

    3. Installation work. 5

    General requirements. 5

    Installation of structures. 5

    Pipe wiring. 6

    Additional requirements for the installation of oxygen piping. ten

    Additional requirements for the installation of pipe lines for pressure over 10 MPa (100 kgf / cm 2) 11

    Pipeline testing. eleven

    Electrical wiring. 13

    Boards, cabinets and consoles .. 14

    Devices and automation equipment. 15

    4. Individual tests. 17

    5. Production of commissioning works. eighteen

    Annex 1*. Production documentation drawn up during the installation and commissioning of automation systems. 21

    Appendix 2. Groups and categories of pipelines for automation systems depending on the medium to be filled and operating pressure. 23

    Appendix 3. Terms and definitions for the installation of automation systems. 23

    Appendix 4. List of main regulatory and technical documents for process pipelines .. 24

    Appendix 5. Requirements for the installation of devices in technological equipment and pipelines. 25

    4 of these rules, and the signing of the acceptance certificate for the assembled automation systems in the amount of working documentation.


    2. PREPARATION FOR PRODUCTION OF INSTALLATION WORKS


    GENERAL REQUIREMENTS


    2.1. The installation of automation systems should be preceded by preparation in accordance with SNiP 3.01.01-85 and these rules.

    2.2. As part of the general organizational and technical training, the following must be determined by the customer and agreed with the general contractor and the installation organization:

    a) the conditions for completing the facility with devices, automation equipment, products and materials supplied by the customer, providing for their delivery to the technological unit. node, line;

    b) a list of devices, automation equipment, aggregate and computer complexes of the automated control system TP, mounted with the involvement of installation supervision manufacturing personnel;

    c) the conditions for the transportation of switchboard blocks, consoles, group installations of devices, pipe blocks to the installation site.

    2.3. When preparing the installation organization for the production of work, there should be:

    channels, tunnels, niches, grooves, embedded pipes for hidden wiring, openings for the passage of pipe and electrical wiring with the installation of boxes, sleeve sleeves, frames and other embedded structures in them;

    platforms for servicing devices and automation equipment have been installed;

    installation openings for moving large-sized knots and blocks.

    2.9. In special rooms intended for automation systems (see clause 1.4), as well as in production rooms in places intended for the installation of instruments and automation equipment, construction and finishing work must be completed, formwork, scaffolding and scaffolds must be disassembled, not required for the installation of automation systems, as well as garbage collection.

    2.10. Special rooms intended for automation systems (see clause 1.4) must be equipped with heating, ventilation, lighting, and, if necessary, air conditioning, mounted according to a permanent scheme, have glazing and door locks. The premises must be kept at a temperature of at least 5 (C.

    After the delivery of these premises for the installation of automation systems, construction work and installation of sanitary systems are not allowed in them.

    2.11. In the premises intended for the installation of technical means of aggregate and computing systems of the ACS TP in addition to requirements nn. 2.9; 2.10, air conditioning systems must be installed and dust thoroughly removed. Painting the premises with chalk whitewash is prohibited. The windows must be provided with protective equipment against direct from the night rays (blinds, curtains)

    2.12. By the beginning of the installation of automation systems on technological, sanitary-technical and other types of equipment, pipelines must be installed:

    embedded and protective structures for the installation of primary devices. Embedded structures for the installation of selective pressure, flow and level devices must end with shut-off valves;

    devices and automation tools built into pipelines, air ducts and apparatus (pressure devices, volumetric and high-speed meters, rotameters, flow sensors of flow meters and concentrators, level gauges of all types, regulators, etc.)

    2.13. At the facility, in accordance with technological, plumbing, electrical and other working drawings, there should be:

    main pipelines and distribution networks were laid with the installation of fittings for the selection of heat carriers to the heated devices of automation systems, as well as pipelines were laid for the removal of heat carriers;

    equipment was installed and main and distribution networks were laid to provide devices and automation equipment with electricity and energy carriers (compressed air, gas, oil, steam, water, etc.), as well as pipelines were laid for the removal of energy carriers;

    a sewerage network was laid to collect wastewater from drainage pipelines of automation systems;

    completed work on the installation of automatic fire extinguishing systems.

    2.14. Grounding network for technical means of aggregate and computer complexes of ACS TP must meet the requirements of the manufacturers of these technical means.

    2.15. Acceptance of the object is formalized by an act of readiness of the object for the production of works on the installation of automation systems in accordance with the mandatory Appendix 1.


    TRANSFER TO INSTALLATION EQUIPMENT, PRODUCTS,

    MATERIALS AND TECHNICAL DOCUMENTATION


    2.16. The transfer of equipment, products, materials and technical documentation for installation is carried out in accordance with the requirements of (Rules on Contracts for Capital Construction "approved by the Council of Ministers of the USSR and" Regulations on the relationship of organizations - general contractors with subcontractors "approved by the USSR State Construction Committee and State Planning Committee of the USSR.

    2.17. Accepted equipment, materials and products must comply with working documentation, state standards, technical specifications and have appropriate certificates, technical passports or other documents certifying their quality. Pipes, fittings and connections for oxygen piping must be degreased, which must be indicated in the documentation confirming this operation.

    When accepting equipment, materials and products, the completeness, the absence of damage and defects, the safety of the paint and special coatings, the safety of the seals, the availability of special tools and devices supplied by the manufacturers are checked.

    Details of pipe lines for pressure over 10 MPa (100 kgf / cm 2) are transferred for installation in the form of products prepared for installation (pipes, fittings for them, fittings, hardware, fittings, etc.) or assembled into assembly units, completed according to the specification of the detail drawings. The pipe openings must be closed with plugs. Acts or other documents confirming the quality of welded joints in accordance with SNiP 3.05.05-84 must be transferred to products and assembly units with welded seams.

    Elimination of equipment defects found during the acceptance process is carried out in accordance with the "Rules on Contracts for Capital Construction".


    3. PRODUCTION OF INSTALLATION WORKS


    GENERAL REQUIREMENTS


    3.1. The installation of automation systems should be carried out in accordance with the working documentation, taking into account the requirements of manufacturers of devices, automation equipment, aggregate and computing complexes, provided for by the technical specifications or instructions for the operation of this equipment.

    Installation work should be carried out by an industrial method using small-scale mechanization, mechanized and electrified tools and devices that reduce the use of manual labor.

    3.2. Installation of automation systems should be carried out in two stages (stages)

    In the first stage should be carried out: procurement of mounting structures, assemblies and blocks, electrical wiring elements and their enlarging assembly outside the assembly area; checking the presence of embedded structures, openings, holes in building structures and building elements, embedded structures and selected devices on technological equipment and pipelines, the presence of a grounding network; laying pipes and blind boxes for hidden wiring into the foundations, walls, floors and ceilings; marking of routes and installation of support and bearing structures for electrical and pipe wiring of actuators of devices.

    In the second stage it is necessary to carry out: laying of pipe and electrical wiring according to the established structures, installation of panels, cabinets, ults, devices and automation equipment, connection of pipe and electrical wiring to them, individual tests.

    3.3. Assembled devices and automation equipment of the electrical branch of the State System of Instruments (GSP), boards and consoles, structures, electrical and pipe wiring, subject to grounding in accordance with the working documentation, must be connected to the ground loop. If there are requirements of manufacturers, the means of aggregate and computing systems must be connected to a special grounding circuit.


    INSTALLATION OF STRUCTURES


    3.4. The marking of the installation sites of structures for instruments and automation equipment should be carried out in accordance with the working documentation.

    When marking, the following requirements must be taken into account:

    when installing structures, hidden wiring must not be disturbed, the strength and fire resistance of building structures (foundations)

    the possibility of mechanical damage to the mounted instruments and automation equipment must be excluded.

    3.5. The distance between the supporting structures on the horizontal and vertical sections of the route for laying pipe and electrical wiring, as well as pneumatic cables should be taken according to the working documentation.

    3.6. Supporting structures must be parallel to each other, as well as parallel or perpendicular (depending on the type of structures) to building structures (bases)

    3.7. Structures for wall-mounted appliances must be perpendicular to the walls. Racks installed on the floor must be plumb or level. When two or more racks are installed side by side, they must be fastened together with detachable connections.

    3.8. Installation of boxes and tray should be carried out by enlarged blocks assembled in assembly and procurement workshops.

    3.9. Fastening boxes and trays to supporting structures and their connection to each other must be bolted or welded.

    When bolting, the tightness of the connection of the boxes and trays with each other and with the supporting structures must be ensured, as well as the reliability of the electrical contact must be ensured.

    When connecting by welding, burn-through of boxes and trays is not allowed.

    3.10. The location of the boxes after their installation should exclude the possibility of moisture accumulation in them.

    3.11. At the intersection of sedimentary and expansion joints of buildings and structures, as well as on external installations, ducts and trays must have compensating devices.

    3.12. All structures must be painted in accordance with the instructions given in the working documentation.

    The rules do not apply to the installation of pipe wiring inside shields and consoles.

    3.15. Installation and testing of piping automation systems must meet the requirements SNiP 05/03/84 and present SNiP.

    3.16. Equipment, fixtures, tooling, work methods used during the installation of pipe wiring must ensure the possibility of installing the following pipes and pneumatic cables:

    The direction and magnitude of the slopes must correspond to those indicated in the working documentation, and in the absence of such instructions, the wiring must be laid with the following minimum slopes: impulse (see recommended Appendix 3) to pressure gauges for all static pressures, diaphragm or pipe draft gauges, gas analyzers - 1:50; impulse to steam, liquid, air and gas flow meters, level regulators, drainage gravity oil lines of hydraulic jet regulators and drain lines (see recommended Appendix 3) -1: 10.

    The slopes of the heating (see recommended appendix 3) piping must meet the requirements for heating systems. Piping lines requiring different slopes and fixed to common structures should be laid along the largest slope.

    3.22. The working documentation should provide for measures to compensate for thermal elongation of pipe lines. For cases where the working documentation provides for self-compensation of temperature extensions of pipe lines at bends and bends, it should indicate at what distances from the bend (bend) the pipes should be fixed.

    3.26. Installation of pipe wiring must ensure: strength and tightness of wiring, pipe connections between themselves and their connections to fittings, devices and automation equipment; reliable fastening of pipes to structures.

    3.27. Fastening of pipe wiring to supporting and supporting structures should be carried out with normalized fasteners; fastening of pipe lines by welding is prohibited. The fastening must be carried out without compromising the integrity of the pipes.

    3.28. It is not allowed to fix pipe lines on the outer side of switchboards, housings of devices and automation equipment.

    on both sides of the turns (bends of pipe b) at distances that provide self-compensation thermal elongation of pipe lines;

    on both sides of the fittings for settling and other vessels, if the fittings and vessels are not secured; if the length of the connecting line on either side of the vessel is less than 250 mm, the pipe is not attached to the supporting structure;

    a) there should be no folds, cracks, crumples, etc. on the bent part of the pipes. NS.;

    b) the ovality of the pipe section at bending points is allowed no more than 10%.

    3.32. The minimum radius of the internal bending curve of pipes should be:

    for cold bent polyethylene pipes:

    for hot bent polyethylene pipes - not less than 3 D n;

    for annealed copper pipes bent in a cold state - not less than D n;

    for annealed pipes made of aluminum and aluminum alloys when bending them in a cold state - not less than 3D n.

    3.33. The connection of pipes during installation is allowed to be carried out both with one-piece and detachable connections. When connecting pipe wiring, it is prohibited to eliminate gaps and misalignment pipes by heating, tension or bending pipes.

    3.34. Connection of pipe lines to embedded structures (see recommended Appendix 3) of technological equipment and pipelines, to all devices, automation equipment, shields and consoles should be carried out with detachable connections.

    3.35. For detachable connections and pipe connections, normalized threaded connections must be used. In this case, for pipes made of stainless steel, aluminum and aluminum alloys, connecting parts specially designed for these pipes must be used.

    3.36. It is forbidden to place pipe connections of any type: on expansion joints; on curved areas; in places of attachment to supporting and supporting structures; in passages through walls and ceilings of buildings and structures; in places inaccessible for service during operation.

    3.37. Pipe connections should be located at a distance of at least 200 mm from the attachment points.

    3.38. When connecting pipes in group piping, the connections must be offset to allow the tool to work when installing or dismantling the pipe wiring.

    In case of group laying by blocks, the distances between the detachable connections must be indicated in the working documentation, taking into account the block mounting technology.

    3.39. Rubber pipes or pipes made of other elastic material connecting pipe lines with devices and automation equipment must be worn over the entire length of the connecting lugs; pipes must be laid without kinks, freely.

    3.40. Fittings (valves, taps, gearboxes, etc.) installed on pipe lines made of copper, aluminum and plastic pipes must be rigidly fixed to structures.

    3.41. All piping must be labeled. Marking the signs applied to the tags must correspond to the marking of the pipe lines given in the working documentation.

    3.42. The application of protective coatings should be carried out on a well-cleaned and degreased pipe surface. The color of the pipe wiring must be specified in the working documentation.

    3.44. Plastic pipes and pneumatic cables should be laid on non-combustible structures and laid on them freely, without tension, taking into account the change in length due to temperature differences.

    In places of contact with sharp edges of metal structures and fasteners, non-armored cables and plastic pipes must be protected with gaskets (rubber, polyvinyl chloride), protruding 5 mm on both sides of the edges of the supports and fastening brackets.

    The fastening parts must be installed so as not to deform the cross-section of plastic pipes and pneumatic cables.

    3.45. Compensation for temperature changes in the length of plastic pipe conduits should be ensured through a rational arrangement of movable (free) and fixed (rigid) fasteners and a curved element in the pipe conduit itself (bends, ducks, snake-laying)

    3.46. The arrangement of fixed mountings that do not allow the movement of the wires in the axial direction should be done in such a way as to divide the route into sections, the temperature deformation of which occurs independently of one another and is self-compensating.

    Fasteners should be fixed at junction boxes, cabinets, switchboards, etc., as well as in the middle of sections between two twists and turns.

    In all other cases, where the movement of pipes is allowed and pneumatic cables in the axial direction, moveable fasteners should be used.

    3.47. Fastening plastic pipes and pneumatic cables cornering is not allowed.

    The pivot point for horizontal laying must lie on a flat, solid support. At a distance of 0.5-0.7 from the top of the bend, plastic pipes and pneumatic cables must be secured with movable fasteners.

    3.48. Installation of plastic pipe wiring must be carried out, avoiding damage to the pipes (cuts, deep scratches, dents, reflow, burn-throughs, etc. etc.). Damaged pipe sections must be replaced.

    3.49. Plastic pipes and pneumatic cables laid openly in places of possible mechanical stress at a height of up to 2.5 m from the floor must be protected from damage by metal casings, pipes or other devices. The design of protective devices must allow their free dismantling and maintenance of pipe lines.

    Pipe sections up to 1 m long for devices, actuators and automation equipment installed on technological pipelines and apparatus may not be protected.



    3.54. When connecting to devices, equipment and bulkhead connections (taking into account the permissible bending radii), plastic pipes must have a margin of at least 50 mm in case of possible damage during repeated reassembly of the connections.

    3.55. When laying pneumatic cables on cable structures, the following conditions must be met:

    pneumatic cables must be laid in one layer;

    the sag arrow must be formed only by its own weight pneumatic cables and should not exceed 1% of the span.

    Mounting for horizontal laying should be carried out through one support.

    3.56. When installing metal pipe wiring, it is allowed to use any welding methods that ensure high-quality connections, if the type or method of welding is not specified in the working documentation.

    3.57. Welding of steel pipelines and quality control of welded joints should be carried out in accordance with SNiP 3.05.05-84.

    3.58. The method and technological mode of pipe welding, materials for welding and the procedure for welding control should be adopted in accordance with the standard technological process for welding OST 36-57-81 and OST 36-39 (80, approved Minmontazhspetsstroy THE USSR. Types and structural elements of welded seams must comply with GOST 16037-80.

    3.59. One-piece connection of copper pipes must be soldered in accordance with GOST 19249-73.

    Quality control of soldered joints should be carried out by external inspection, as well as by performing a hydraulic or pneumatic test.


    3.65. Before starting work on the installation of pipe wiring over 10 MPa (100 kgf / cm 2) responsible persons are appointed from among the engineering and technical workers, who are entrusted with the management and quality control of work on the installation of pipe wiring and paperwork.

    Designated engineers and technicians must be certified after specialized training.

    3.67. When installing and adjusting piping of automation systems filled with flammable and toxic liquids and gases, as well as piping at R y(10 MPa (100 kgf / cm 2) should be guided by the requirements of the normative documents given in the recommended annex 4.



    3.68. Fully assembled piping must be tested for strength and tightness in accordance with SNiP 3.05.05-84.

    3.71. Pressure gauges used for testing must have:

    accuracy class not less than 1.5;

    case diameter not less than 160 mm;

    measurement limits equal to 4/3 of the measured pressure.

    3.72. Testing of plastic pipe lines and pneumatic cables must be carried out at a temperature of the test environment not exceeding 30 (C.

    3.73. Testing of plastic pipe lines is allowed to be carried out no earlier than 2 hours after the last pipe welding.

    3.74. Before testing for strength and tightness, all pipe conduits, regardless of purpose, must be subjected to

    a) external examination in order to detect installation defects, conformity of their working documentation and readiness for testing;

    b) purging, and if indicated in the working documentation - flushing.

    3.75. Purging of pipe lines must be carried out with compressed air or inert gas, dried and free from oil and dust.

    Steam and water piping can be purged and flushed with a working medium.

    3.76. Blowing of pipe lines should be carried out with a pressure equal to the working pressure, but not more than 0.6 MPa (6 kgf / cm 2

    If it is necessary to purge at a pressure of more than 0.6 MPa (6 kgf / cm 2) purging should be performed in accordance with the instructions given in special schemes for purging process pipelines, agreed with the customer.

    Blowing should be done within 10 minutes until clean air appears.

    Purging pipe lines operating at an overpressure of up to 0.1 MPa (1 kgf / cm 2) or absolute pressure up to 0.001 to 0.095 MPa (from 0.01 to 0.95 kgf / cm 2) should be produced with air pressure no more than 0.1 MPa (1 kgf / cm 2).

    3.77. Flush tubing should be carried out until clean water is consistently drawn from the outlet or vent of the flushed tubing.

    At the end of flushing, the piping must be completely free of water and, if necessary, blown out with compressed air.

    3.78. After purging and flushing, piping should be plugged.

    The design of the plugs should exclude the possibility of their breakdown at test pressures.

    On pipe conduits designed to work with P p(10 MPa (100 kgf / cm 2), plugs or blind lenses with shanks must be installed.

    3.79. Lines supplying test fluid, air or inert gases from pumps, compressors, cylinders, etc. NS. to pipe lines must be pre-tested with hydraulic pressure in the assembled state with shut-off valves and pressure gauges.

    3.80. In hydraulic tests, water shall be used as the test fluid. The water temperature during the tests must be at least 5 (C.

    3.81. In pneumatic tests, air or an inert gas shall be used as the test medium. Air and inert gases must be free from moisture, oil and dust.

    3.82. The following pressure rise stages are recommended for hydraulic and pneumatic testing:

    3rd (up to P pr;

    4th (reduced to P p [for pipe wiring from P p to 0.2 MPa (2 kgf / cm 2 only stage 2 is recommended]

    The pressure on the 1st and 2nd stages is maintained for 1-3 minutes; during this time, according to the readings of the manometer, there is no pressure drop in the pipework.

    Test pressure (3rd stage) is maintained for 5 minutes.

    On pipelines with a pressure of P p (10 MPa, the test pressure is maintained for 10-12 minutes.

    Raising the pressure to the 3rd stage is a strength test.

    The working pressure (4th stage) is maintained for the time required for final inspection and detection of defects. The 4th stage pressure is a density test.

    3.83. Defects are eliminated after reducing the pressure in the piping to atmospheric.

    After elimination of defects, the test is repeated.

    3.84. Piping wiring is considered to be serviceable if no pressure drop occurred on the pressure gauge during the strength test and no leaks were found in the welds and joints during the subsequent tightness test.

    At the end of the tests, an act must be drawn up.

    3.85. Pipelines filled with flammable, toxic and liquefied gases (except for gas pipelines with a pressure of up to 0.1 MPa (1 kgf / cm pipelines filled with oxygen, as well as pipelines for pressures over 10 MPa (100 kgf / cm at an absolute pressure of 0.001 to 0.095 MPa (from 0.01 to 0.95 kgf / cm should be subjected to additional density tests to determine the pressure drop.

    3.86. Tubing should be flushed or purged prior to tightness testing of piping to determine the pressure drop.

    3.87. For pipelines for a pressure of 10 (100 MPa (100-1000 kgf / cm 2), before density tests with the determination of the pressure drop on the pipe lines, safety valves must be installed, pre-adjusted to open at a pressure exceeding the operating pressure by 8%. Safety valves must be provided for by the working documentation.

    3.88. The density test with the determination of the pressure drop is carried out with air or an inert gas with a test pressure equal to the working pressure P pr P p ) except for pipelines for absolute pressure from 0.001 to 0.095 MPa (from 0.01 to 0.95 kgf / cm) which must be tested with the following pressure:

    a) pipelines filled with flammable, toxic and liquefied gases - 0.1 MPa (1 kgf / cm

    b) pipelines filled with conventional media - 0.2 MPa (2 kgf / cm

    3.89. The duration of the additional test for resistance and the holding time under test pressure is established in the working documentation, but should be at least for the pipeline:

    for flammable, toxic and liquefied gases - 24

    for absolute pressure from 0.001 to 0.095 MPa -12

    3.90. Pipelines are considered to have passed the test if the pressure drop in them does not exceed the values ​​indicated in table. 2.


    table 2



    The specified standards apply to pipe wiring with a 50 mm bore. When testing pipe lines with other nominal diameters, the rate of pressure drop in them is determined by the product of the above pressure drop values ​​by the coefficient calculated by the formula


    ELECTRICAL WIRING


    3.93. Installation of electrical wiring for automation systems (measurement, control, power, signaling, etc.) NS.) wires and control cables in boxes and on trays, in plastic and steel protective pipes, on cable structures, in cable structures and the ground; installation of electrical wiring in explosion and fire hazardous areas, installation grounding(grounding) must meet the requirements of SNiP 3.05.06-85, taking into account the specific features of the installation of automation systems set forth in the manuals to the specified SNiP.

    3.94. Connection of single-wire copper conductors of wires and cables with a cross-section of 0.5 and 0.75 mm 2 and stranded copper conductors with a cross section of 0.35; 0.5; 0.75 mm 2 to devices, apparatus, clamp assemblies should, as a rule, be performed by soldering, if the design of their terminals allows this (non-separable contact connection)

    If it is necessary to connect single-wire and stranded copper conductors of the indicated cross-sections to devices, devices and assemblies of terminals that have leads and clamps for connecting conductors under a screw or bolt (collapsible contact connection), the conductors of these wires and cables must end tips.

    Single-wire copper conductors of wires and cables with a cross section of 1; 1.5; 2.5; 4 mm 2 should, as a rule, be connected directly under the screw or bolt, and stranded wires of the same cross-sections - using lugs or directly under the screw or bolt. In this case, the cores of single-wire and multi-wire wires and cables, depending on the design of the terminals and clamps of devices, devices and assemblies of clamps, end ring or pin; the ends of stranded conductors (rings, pins) must be soldered, the pin ends can be pressed with pin tips.

    If the design of leads and clamps of devices, devices, clamp assemblies requires or allows other methods of connecting single-wire and stranded copper conductors of wires and cables, the methods of connection specified in the relevant standards and specifications for these products should be used.

    Connection of aluminum conductors of wires and cables with a cross-section of 2.0 mm 2 and more to devices, apparatuses, clamp assemblies should be carried out only with clamps that allow direct connection of aluminum conductors of appropriate cross-sections to them.

    The connection of single-wire conductors of wires and cables (under a screw or soldering) is allowed only to stationary elements of devices and apparatus.

    The connection of conductors of wires and cables to devices, apparatuses and automation equipment that have output devices in the form of plug connectors should be carried out by means of stranded (flexible) copper wires or cables laid from clamp assemblies or junction boxes to instruments and automation equipment.

    Collapsible and non-collapsible joints of copper, aluminum and aluminum-copper conductors of wires and cables with leads and clamps of devices, apparatus, clamp assemblies must be performed in accordance with the requirements of GOST 10434-82, GOST 25 54-82, GOST 25705-83, GOST 19104-79 and GOST 23517-79.

    3.95. Connection of steel protective pipes with each other, with broaching boxes, etc. etc. in rooms of all classes, use standard threaded connections.

    In rooms of all classes, except for explosive and fire hazardous zones, it is allowed to connect steel thin-walled protective pipes with sleeves made of sheet steel or steel pipes of larger diameter, followed by scalding along the entire perimeter of the joints: in this case, burn-through of pipes is not allowed.

    3.96. The assembled wiring of automation systems must be subjected to an external examination, which establishes the compliance of the mounted wiring with working documentation and the requirements of these rules. Wiring that meets the specified requirements must be tested for insulation resistance.

    3.97. Measurement of insulation resistance of electrical wiring of automation systems (measurement circuits, control, power supply, signaling, etc.) is carried out megohmmeter for a voltage of 500-1000 V. Insulation resistance should not be less than 0.5 MOhm.

    When measuring the insulation resistance, wires and cables must be connected to the terminal board assemblies, cabinets, consoles and junction boxes.

    Devices, apparatus and wiring that do not allow testing with a megohmmeter with a voltage of 500-1000 V must be turned off during the test.

    Based on the results of measuring the insulation resistance, an act is drawn up.


    3.105. The inspection of instruments and automation equipment is carried out by the customer or specialized organizations involved by him, performing work on setting up instruments and automation equipment using the methods adopted in these organizations, taking into account the requirements of the instructions of the State Standard and manufacturers.

    3.106. Instruments and automation equipment accepted for installation after verification must be prepared for delivery to the installation site. Moving systems must be arrested, the connecting devices are protected from moisture, dirt and dust.

    Along with the devices and automation equipment, special tools, accessories and fasteners included in their kit, required for installation, must be handed over to the installer.

    3.107. The placement of instruments and automation equipment and their mutual arrangement should be carried out according to the working documentation. Their installation should ensure the accuracy of measurements, free access to the devices and to their shut-off and adjustment devices (taps, valves, switches, adjustment knobs, etc.)

    3.108. In places where devices and automation equipment are installed, which are inaccessible for installation and maintenance, the construction of stairs, wells and platforms must be completed before the start of installation in accordance with the working documentation.

    3.109. Devices and automation equipment must be installed at the ambient temperature and relative humidity specified in the manufacturer's installation and operating instructions.

    3.110. External pipe wiring must be connected to the devices in accordance with the requirements of GOST 25164-82 and GOST 025 65-82, and electrical wiring - in accordance with the requirements of GOST 10434-82, GOST 25154-82, GOST 25705-83, GOST 19104-79 and GOST 23517-79.

    3.111. Fastening devices and automation equipment to metal structures (shields, cabinets, stands, etc.) should be carried out in the ways provided for by the design of instruments and automation equipment and the parts included in their set.

    If fasteners are not included in the set of individual instruments and automation equipment, then they must be secured with normalized fasteners.

    In the presence of vibrations in the places where the devices are installed, the threaded fasteners must have devices that prevent their spontaneous unscrewing(spring washers, lock nuts, cotter pins, etc.) NS.)

    3.112. The openings of instruments and automation equipment intended for connecting pipe and electrical wiring must remain plugged until the wiring is connected.

    3.113. Housings of devices and automation equipment must be grounded in accordance with the requirements of the manufacturer's instructions and SNiP 3.05.06-85.

    4.5. After the completion of the individual testing, an acceptance certificate for the assembled automation systems is drawn up, to which documents on positions 4-12, 16, 21 of Appendix 1 are attached.

    4.6. It is allowed to transfer installation work for adjustment by separate systems or separate parts of the complex (for example, dispatching and operator rooms, etc.). NS.) The delivery of the assembled automation systems is formalized by an act (see mandatory appendix 1)



    5.3. During the period of individual tests and complex testing of technological equipment, the customer or on his behalf commissioning the organization must ensure the commissioning of the automation systems necessary for testing or testing technological equipment in accordance with the design and specifications of the manufacturers.

    5.4. By the beginning of the work on the adjustment of automation systems, the customer must bring all the control and stop valves on which the actuators of the automation systems are mounted; put into operation automatic fire extinguishing and alarm systems.

    programs and protocols for testing automation systems;

    schematic diagram of the working documentation for automation with all the changes made and agreed with the customer during the commissioning process (one copy)

    passports and instructions of manufacturers of devices and automation equipment, additional technical documentation received from the customer in the course of commissioning.

    5.24. The end of the commissioning works is fixed by the act of acceptance of automation systems into operation in the amount stipulated by the project.

    FORMED DURING INSTALLATION AND ADJUSTMENT

    AUTOMATION SYSTEMS


    1. The act of transfer of working documentation for the production of work

    2. The certificate of readiness of the object for the production of works on the installation of automation systems

    3. Installation work interruption certificate


    4. Certificate of Survey of Hidden Works


    5. Certificate of testing pipe lines for strength and tightness


    6. The act of pneumatic testing of pipe lines for p ration with the determination of the pressure drop during the test


    Completeness of documents in accordance with CH 202-81, VSN 281-75 and standards of the design documentation system for construction; suitability for installation work using complete-block and nodal work methods; availability of a permit for the production of work; date of acceptance of documentation and signatures of representatives of the customer, general contractor and installation organization

    Any shape

    According to the form of the certificate of inspection of hidden works SNiP 3.01.01-85


    In the act, it should be especially noted the correctness of the installation of embedded structures and primary devices on technological equipment, apparatus and pipelines in accordance with with p. 2.12

    It is assembled for pipelines filled with flammable, toxic and liquefied gases (except for gas pipelines with a pressure of up to 0.1 MPa); pipelines filled with oxygen; pipe lines for the pressure of St. 10 MPa and for absolute pressure from 0.001 to 0.095 MPa


    7. Degreasing certificate for fittings, connections and pipes

    8. Documents for pipelines with the pressure of St. ten MPa


    9. Welding log


    11. The protocol of heating cables on drums


    12. Hazardous Area Wiring Documents


    13. Documents on electrical wiring in fire hazardous areas


    14. Instrument and automation inspection certificate


    15. Permission for the installation of devices and automation equipment


    16. List of mounted devices and automation equipment


    17. Acceptance certificate of assembled automation systems


    18. Permission to amend the working documentation


    Types of documents are established by the BCH

    Any shape

    Any shape

    Any shape


    Composed on oxygen-filled piping


    It is compiled for pipe lines with the pressure of St. 10 MPa


    The composition is for pipelines of I and II categories and for pressure of St. 10 MPa

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