This document does not refer to other normative documents.

Building regulations

Building regulations

SNiP 3.05.06-85

Electrical devices

DEVELOPED VNIIproektelektromontazhem Minmontazhspetsstroy USSR V.K.Dobrynin, I.N.Dolgov - leaders

themes, Candidate of Technical Sciences V.A. Antonov, A.L. Blinchikov, V.V. Belotserkovets, V.A. Yu.A. Roslov, S.N. Starostin, A.K. Shulzhitsky), Orgenergostroy of the Ministry of Energy of the USSR (G.N. Elenbogen, N.V. Belanov, N.A. Voinilovich, A.L. Gonchar, N.M. Lerner), Selenergoproekt of the Ministry of Energy of the USSR (G.F. Sumin, Yu.V. Nepomnyashchiy), UGPI Tyazhpromelektroproekt of the Minmontazhspetsstroy of the Ukrainian SSR (E.G. Poddubny, A.A. Koba).

INTRODUCED by the USSR Minmontazhspetsstroy.

APPROVED by the Decree of the State Committee of the USSR for Construction of December 11, 1985 No. 215

INSTEAD OF SNiP III-33-76*, SN 85-74, SN 102-76*.

These rules apply to the performance of work during the construction of new, as well as during the reconstruction, expansion and technical re-equipment of existing enterprises for the installation and commissioning of electrical devices, including: electrical substations, distribution points and overhead power lines with a voltage of up to 750 kV, cable lines with a voltage of up to 220 kV, relay protection, power electrical equipment, indoor and outdoor electric lighting, grounding devices.

The rules do not apply to. production and acceptance of work on the installation and adjustment of electrical devices of the subway, mines and mines, contact networks of electrified transport, signaling systems of railway transport, as well as high-security premises of nuclear power plants, which must be carried out in accordance with departmental building codes approved in the manner established by SNiP 1.01.01-82.

The rules must be observed by all organizations and enterprises involved in the design and construction of new, expansion, reconstruction and technical re-equipment of existing enterprises.

1. GENERAL PROVISIONS

The full version of the document is available free of charge to authorized users

Russian Federation

"ELECTRICAL DEVICES. BUILDING NORMS AND RULES. SNIP 3.05.06-85" (approved by Decree of the USSR Gosstroy dated 11.12.85 N 215)

APPROVED
Decree
Gosstroy of the USSR
dated December 11, 1985
N 215

These rules apply to the performance of work during the construction of new, as well as during the reconstruction, expansion and technical re-equipment of existing enterprises for the installation and commissioning of electrical devices, including: electrical substations, distribution points and overhead power lines with a voltage of up to 750 kV, cable lines with a voltage of up to 220 kV, relay protection, power electrical equipment, indoor and outdoor electric lighting, grounding devices.

The rules do not apply to the production and acceptance of work on the installation and adjustment of electrical devices of the subway, mines and mines, contact networks of electrified transport, signaling systems of railway transport, as well as high security rooms of nuclear power plants, which must be carried out in accordance with departmental building codes approved in in the manner established by SNiP 1.01.01-82.

The rules must be observed by all organizations and enterprises involved in the design and construction of new, expansion, reconstruction and technical re-equipment of existing enterprises.

1.1. When organizing and performing work on the installation and commissioning of electrical devices, the requirements of SNiP 3.01.01-85, SNiP III-4-80, state standards, technical specifications, Rules for the installation of electrical installations approved by the USSR Ministry of Energy, and departmental regulatory documents approved in the order established by SNiP 1.01.01-82.

The law is simple: Due to the loss of force of Building Regulations and Rules SNiP 3.01.01-85 *, one should be guided by those adopted instead of SNiP 12-01-2004

1.2. Work on the installation and adjustment of electrical devices should be carried out in accordance with the working drawings of the main sets of drawings of electrical grades; according to the working documentation of electric drives; according to the working documentation of non-standardized equipment, made by the design organization; according to the working documentation of enterprises - manufacturers of technological equipment, supplying power and control cabinets with it.

1.3. The installation of electrical devices should be carried out on the basis of the use of nodal and complete-block construction methods, with the installation of equipment supplied in enlarged assemblies that do not require straightening, cutting, drilling or other fitting operations and adjustment during installation. When accepting working documentation for the production of work, it is necessary to check that it takes into account the requirements of the industrialization of the installation of electrical devices, as well as the mechanization of work on laying cables, rigging and installing technological equipment.

1.4. Electrical work should be carried out, as a rule, in two stages.

In the first stage, inside buildings and structures, work is carried out on the installation of supporting structures for the installation of electrical equipment and bus ducts, for laying cables and wires, installation of trolleys for electric overhead cranes, installation of steel and plastic pipes for electrical wiring, laying hidden wiring wires to plastering and finishing works, as well as work on the installation of external cable networks and grounding networks. The work of the first stage should be carried out in buildings and structures according to a combined schedule simultaneously with the main construction work, while measures should be taken to protect the installed structures and laid pipes from breakage and pollution.

In the second stage, work is carried out on the installation of electrical equipment, the laying of cables and wires, busbars and the connection of cables and wires to the terminals of electrical equipment. In the electrical rooms of the facilities, the work of the second stage should be carried out after the completion of the complex of general construction and finishing works and after the completion of the installation of plumbing devices, and in other rooms and areas - after the installation of technological equipment, electric motors and other electrical receivers, installation of technological, sanitary and technical pipelines and ventilation ducts.

At small facilities remote from the locations of electrical installation organizations, work should be carried out by mobile integrated teams with a combination of two stages of their implementation into one.

1.5. Electrical equipment, products and materials should be supplied according to the schedule agreed with the electrical installation organization, which should provide for the priority supply of materials and products included in the specifications for the blocks to be manufactured at the assembly and assembly enterprises of electrical installation organizations.

1.6. The end of the installation of electrical devices is the completion of individual tests of the installed electrical equipment and the signing by the working commission of an act on the acceptance of electrical equipment after an individual test. The beginning of individual testing of electrical equipment is the moment of introduction of the operating mode at this electrical installation, declared by the customer on the basis of a notice from the commissioning and electrical installation organizations.

1.7. At each construction site, during the installation of electrical devices, special logs for the production of electrical work should be kept in accordance with SNiP 3.01.01-85, and upon completion of work, the electrical installation organization is obliged to transfer to the general contractor the documentation presented to the working commission in accordance with SNiP III-3-81. The list of acts and protocols of inspections and tests is determined by the VSN, approved in accordance with the procedure established by SNiP 1.01.01-82.

2.1. The installation of electrical devices must be preceded by preparation in accordance with SNiP 3.01.01-85 and these rules.

2.2. Prior to the commencement of work at the facility, the following activities must be completed:

a) working documentation has been received in the amount and within the time specified by the Rules on Contracts for Capital Construction, approved by a resolution of the Council of Ministers of the USSR, and the Regulations on the relationship of organizations - general contractors with subcontractors, approved by the USSR State Construction Committee and the USSR State Planning Committee;

b) coordinated schedules for the supply of equipment, products and materials, taking into account the technological sequence of work, a list of electrical equipment installed with the involvement of the installation supervision personnel of the supplying enterprises, the conditions for transporting heavy and large-sized electrical equipment to the installation site;

c) the necessary premises have been taken to accommodate teams of workers, engineering and technical workers, a production base, as well as for storing materials and tools with the provision of measures for labor protection, fire safety and environmental protection in accordance with SNiP 3.01.01-85;

d) a project for the production of works was developed, the engineering and technical workers and foremen were familiarized with the working documentation and estimates, organizational and technical solutions for the project for the production of works;

e) the acceptance of the construction part of the facility for the installation of electrical devices in accordance with the requirements of these rules was carried out and the measures for labor protection, fire safety and environmental protection provided for by the norms and rules in the course of work were carried out;

f) the general contractor has performed general construction and auxiliary work, provided for by the Regulations on the relationship of organizations - general contractors with subcontractors.

2.3. Equipment, products, materials and technical documentation must be handed over for installation in accordance with the Rules on contracts for capital construction and the Regulations on the relationship of organizations - general contractors with subcontractors.

2.4. Upon acceptance of the equipment for installation, it is inspected, the completeness is checked (without disassembly), the presence and validity of the manufacturer's warranties are checked.

2.5. The condition of the cables on the drums must be checked in the presence of the customer by external inspection. The results of the inspection are documented.

2.6. When accepting prefabricated reinforced concrete structures of overhead lines (VL), the following should be checked:

the dimensions of the elements, the position of the steel embedded parts, as well as the quality of the surfaces and the appearance of the elements. The specified parameters must comply with GOST 13015.0-83, GOST 22687.0-85, GOST 24762-81, GOST 26071-84, GOST 23613-79, as well as PUE;

the presence on the surface of reinforced concrete structures intended for installation in an aggressive environment, waterproofing, made at the manufacturer.

2.7. Insulators and linear fittings must meet the requirements of the relevant state standards and specifications. Upon acceptance, check:

availability of a manufacturer's passport for each batch of insulators and linear fittings, certifying their quality;

the absence of cracks, deformations, shells, chips, damage to the glaze on the surface of the insulators, as well as the swaying and rotation of the steel reinforcement relative to the cement seal or porcelain;

the absence of cracks, deformations, shells and damage to galvanizing and threads in linear reinforcement.

Minor damage to galvanizing can be painted over.

2.8. Elimination of defects and damages discovered during the transfer of electrical equipment is carried out in accordance with the Rules on Contracts for Capital Construction.

2.9. Electrical equipment for which the normative storage period specified in state standards or technical conditions has expired is accepted for installation only after a pre-installation audit, defect correction and testing. The results of the work performed must be entered in the forms, passports and other accompanying documentation, or an act must be drawn up on the performance of the specified work.

2.10. Electrical equipment, products and materials accepted for installation should be stored in accordance with the requirements of state standards or technical specifications.

2.11. For large and complex facilities with a large volume of cable lines in tunnels, channels and cable half-floors, as well as electrical equipment in electrical rooms, measures for advanced installation (against the installation of cable networks) of internal fire water supply systems, automatic fire extinguishing and automatic fire signaling, provided for by the working drawings.

2.12. In electrical rooms (panel rooms, control rooms, substations and switchgear, machine rooms, battery rooms, cable tunnels and channels, cable half-floors, etc.), finishing floors with drainage channels, the necessary slope and waterproofing, and finishing works (plastering and painting ), embedded parts are installed and mounting openings are left, the load-lifting and load-moving mechanisms and devices provided for by the project are mounted, pipe blocks, holes and openings for the passage of pipes and cables, grooves, niches and nests are prepared in accordance with the architectural and construction drawings and the project for the production of works, power supply for temporary electric lighting in all rooms has been completed.

2.13. In buildings and structures, heating and ventilation systems must be put into operation, bridges, platforms and structures of suspended ceilings, provided by the project for the installation and maintenance of electric lighting installations located at a height, as well as fastening structures for multi-lamp fixtures (chandeliers) weighing more than 100 kg; asbestos-cement pipes and branch pipes and pipe blocks for the passage of cables were laid outside and inside the buildings and structures provided for by the working construction drawings.

2.14. Foundations for electrical machines should be handed over for installation with fully completed construction and finishing works, installed air coolers and ventilation ducts, with benchmarks and axial bars (measurements) in accordance with the requirements of SNiP 3.02.01-83 and these rules.

2.15. On the supporting (rough) surfaces of the foundations, depressions of not more than 10 mm and slopes of up to 1:100 are allowed. Deviations in construction dimensions should be no more than: according to axial dimensions in the plan - plus 30 mm, according to the height marks of the foundation surface (excluding the height of the gravy) - minus 30 mm, according to the dimensions of the ledges in the plan - minus 20 mm, according to the dimensions of the wells - plus 20 mm, along the ledge marks in the recesses and wells - minus 20 mm, along the axes of the anchor bolts in the plan - + -5 mm, along the axes of the embedded anchor devices in the plan - + -10 mm, along the marks of the upper ends of the anchor bolts - + -20 mm.

2.16. The handover and acceptance of foundations for the installation of electrical equipment, the installation of which is carried out with the involvement of installation supervision personnel, is carried out jointly with representatives of the organization that carries out installation supervision.

2.17. Upon completion of finishing work in battery rooms, acid- or alkali-resistant coatings of walls, ceilings and floors should be made, heating, ventilation, plumbing and sewerage systems should be installed and tested.

2.18. Prior to the start of electrical work on open switchgears with a voltage of 35 kV and above, the construction organization must complete the construction of access roads, approaches and entrances, install busbar and linear portals, build foundations for electrical equipment, cable ducts with ceilings, fences around the outdoor switchgear, emergency discharge tanks oils, underground communications and the planning of the territory is completed. In the structures of portals and foundations for equipment, the embedded parts and fasteners provided for by the project, necessary for fastening the strings of insulators and equipment, must be installed. Embedded parts for fastening cable structures and air ducts must be installed in cable ducts and tunnels. The construction of a water supply system and other fire-fighting devices provided for by the project must also be completed.

2.19. The construction part of the outdoor switchgear and substations with a voltage of 330-750 kV should be accepted for installation for their full development, provided for by the project for the billing period.

2.20. Prior to the start of electrical work on the construction of overhead power lines with voltages up to 1000 V and above, preparatory work must be performed in accordance with SNiP 3.01.01-85, including:

inventory facilities were prepared at the locations of foremen's sites and temporary bases for storing materials and equipment; temporary access roads, bridges and installation sites were built;

clearings are arranged;

the demolition of buildings provided for by the project and the reconstruction of intersecting engineering structures located on the overhead line or near it and interfering with the work were carried out.

2.21. Routes for laying a cable in the ground must be prepared for the beginning of its laying in volume: water is pumped out of the trench and stones, clods of earth, construction debris are removed; at the bottom of the trench there is a pillow made of loosened earth; soil punctures were made at the intersections of the route with roads and other engineering structures, pipes were laid.

After laying the cables in the trench and submitting by the electrical installation organization an act for hidden work on laying the cables, the trench should be filled up.

2.22. Block sewer routes for laying cables must be prepared taking into account the following requirements:

the design depth of the blocks is maintained from the planning mark;

the correct laying and waterproofing of the joints of reinforced concrete blocks and pipes are ensured;

the cleanliness and alignment of the channels are ensured;

there are double covers (lower with a lock) for hatches of wells, metal ladders or brackets for descending into the well.

2.23. When constructing overpasses for laying cables on their supporting structures (columns) and on span structures, the embedded elements provided for by the project for the installation of cable rollers, bypass devices and other devices must be made.

2.24. The general contractor must submit construction readiness for acceptance for installation in residential buildings - section by section, in public buildings - floor by floor (or by premises).

Reinforced concrete, gypsum concrete, expanded clay concrete floor panels, internal wall panels and partitions, reinforced concrete columns and prefabricated crossbars must have channels (pipes) for laying wires, niches, sockets with embedded parts for installing sockets, switches, bells and bell buttons in accordance with working drawings. The flow sections of channels and monolithic non-metallic pipes should not differ by more than 15% from those indicated in the working drawings.

The displacement of nests and niches at the junctions of adjacent building structures should not be more than 40 mm.

2.25. In buildings and structures handed over for installation of electrical equipment, the general contractor must make holes, furrows, niches and nests in foundations, walls, partitions, ceilings and coatings provided for by architectural and construction drawings, necessary for the installation of electrical equipment and installation products, laying pipes for electrical wiring and electrical networks.

The indicated holes, grooves, niches and nests not left in the building structures during their erection are made by the general contractor in accordance with the architectural and construction drawings.

Holes with a diameter of less than 30 mm that cannot be taken into account when developing drawings and which cannot be provided in building structures according to the conditions of their manufacturing technology (holes in walls, partitions, ceilings only for installing dowels, studs and pins of various support structures) must carried out by the electrical installation organization at the place of work.

After performing electrical work, the general contractor is obliged to seal holes, grooves, niches and nests.

2.26. When accepting foundations for transformers, the presence and correct installation of anchors for fastening traction devices when rolling transformers and foundations for jacks for turning rollers should be checked.

3.1. When loading, unloading, moving, lifting and installing electrical equipment, measures must be taken to protect it from damage, while heavy electrical equipment must be securely rafters for the parts provided for this purpose or in the places specified by the manufacturer.

3.2. Electrical equipment during installation is not subject to disassembly and revision, except when it is provided for by state and industry standards or technical conditions agreed in the prescribed manner.

Dismantling of equipment that arrived sealed from the manufacturer is prohibited.

3.3. Electrical equipment and cable products deformed or with damage to protective coatings are not subject to installation until the damage and defects are eliminated in the prescribed manner.

3.4. In the production of electrical work, standard sets of special tools for the types of electrical work, as well as mechanisms and devices designed for this purpose, should be used.

3.5. As supporting structures and fasteners for the installation of trolleys, bus ducts, trays, boxes, hinged shields and control stations, protective and starting equipment and lamps, factory-made products with increased assembly readiness (with a protective coating, adapted for fastening without welding and do not require large labor costs for mechanical processing).

Support structures should be fastened by welding to embedded parts provided in building elements, or by fasteners (dowels, pins, studs, etc.). The method of fastening must be indicated in the working drawings.

3.6. The color designation of the current-carrying busbars of switchgears, trolleys, grounding buses, overhead lines should be carried out in accordance with the instructions given in the project.

3.7. When performing work, an electrical installation organization must comply with the requirements of GOST 12.1.004-76 and the Fire Safety Rules for the production of construction and installation works. When introducing an operational mode at the facility, ensuring fire safety is the responsibility of the customer.

4.1. These rules establish requirements for commissioning of electrical devices.

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

4.3. Commissioning is a set of works that includes checking, adjusting and testing electrical equipment in order to ensure the electrical parameters and modes specified by the project.

4.4. When performing commissioning work, one should be guided by the requirements of the Rules for the Arrangement of Electrical Installations approved in the manner established by SNiP 1.01.02-83, the project, and the operational documentation of manufacturers.

General conditions of labor safety and industrial sanitation during commissioning are provided by the customer.

4.5. Commissioning work on electrical devices is carried out in four stages (stages).

4.6. At the first (preparatory) stage, the commissioning organization must:

develop (based on the design and operational documentation of manufacturers) a work program and a project for the production of commissioning works, including safety measures;

transfer to the customer the comments on the project identified in the process of developing the work program and the project for the production of works;

prepare a fleet of measuring equipment, test equipment and fixtures.

4.7. At the first (preparatory) stage of commissioning, the customer must ensure the following:

issue to the commissioning organization two sets of electrical and technological parts of the project approved for work, a set of operational documentation from manufacturers, settings for relay protection, interlocks and automation, if necessary, agreed with the power system;

apply voltage to the workplaces of adjustment personnel from temporary or permanent power supply networks;

appoint responsible representatives for acceptance of commissioning works;

coordinate with the commissioning organization the terms of work performance, taken into account in the general construction schedule;

allocate premises for adjustment personnel at the facility and ensure the protection of these premises.

4.8. At the second stage, commissioning work must be carried out, combined with electrical installation work, with voltage supply according to a temporary scheme. Combined work must be carried out in accordance with current safety regulations. The start of commissioning at this stage is determined by the degree of readiness of construction and installation works: in electrical rooms, all construction work, including finishing, must be completed, all openings, wells and cable channels must be closed, lighting, heating and ventilation have been completed, installation of electrical equipment has been completed and completed. grounding.

At this stage, the commissioning organization checks the installed electrical equipment with voltage applied from test circuits to individual devices and functional groups. Voltage supply to the electrical equipment being adjusted must be carried out only in the absence of electrical installation personnel in the adjustment area and subject to safety measures in accordance with the requirements of the current safety regulations.

4.9. At the second stage of commissioning, the customer must:

provide temporary power supply in the area of ​​commissioning;

ensure re-preservation and, if necessary, pre-installation revision of electrical equipment;

coordinate with the design organizations issues on the comments of the commissioning organization identified in the process of studying the project, as well as provide architectural supervision from the design organizations;

ensure replacement of rejected and supply of missing electrical equipment;

ensure verification and repair of electrical measuring instruments;

ensure the elimination of defects in electrical equipment and installation, identified in the process of commissioning.

4.10. At the end of the second stage of commissioning and before the start of individual tests, the commissioning organization must transfer to the customer in one copy the protocols for testing electrical equipment with increased voltage, grounding and protection settings, as well as make changes to one copy of the circuit diagrams of power supply objects that are switched on under voltage.

4.11. The question of the expediency of preliminary testing and adjustment of individual devices of electrical equipment, functional groups and control systems outside the installation area in order to reduce the time for putting the facility into operation should be decided by the commissioning organization together with the customer, while the customer must ensure the delivery of electrical equipment to the place of adjustment and upon completion of commissioning - to the place of its installation in the installation area.

4.12. At the third stage of commissioning, individual tests of electrical equipment are carried out. The beginning of this stage is the introduction of the operating mode at this electrical installation, after which commissioning should be related to the work performed in existing electrical installations.

At this stage, the commissioning organization adjusts the parameters, protection settings and characteristics of electrical equipment, testing control circuits, protection and signaling, as well as idling electrical equipment in preparation for individual testing of process equipment.

4.13. General safety requirements for the combined production of electrical installation and commissioning in accordance with the current Safety Rules are provided by the head of electrical work at the facility. The head of the commissioning personnel is responsible for ensuring the necessary safety measures, for their implementation directly in the area of ​​commissioning.

4.14. When carrying out commissioning works according to a combined schedule on individual devices and functional groups of the electrical installation, the work area for the production of works must be precisely defined and agreed with the head of the electrical work. The working area should be considered the space where the test circuit and electrical equipment are located, which can be energized from the test circuit. Persons who are not related to the production of commissioning are prohibited from accessing the working area.

In the case of combined work, the electrical installation and commissioning organizations jointly develop an action plan to ensure safety during the performance of work and a schedule for the combined work.

4.15. At the third stage of commissioning, maintenance of electrical equipment should be carried out by the customer, who ensures the deployment of operational personnel, assembly and disassembly of electrical circuits, and also carries out technical supervision of the state of electrical and process equipment.

4.16. With the introduction of the operational mode, ensuring safety requirements, issuing work orders and admission to commissioning should be carried out by the customer.

4.17. After completion of individual testing of electrical equipment, individual testing of technological equipment is carried out. The commissioning organization during this period specifies the parameters, characteristics and settings of the protection of electrical installations.

4.18. After carrying out individual tests, electrical equipment is considered accepted for operation. At the same time, the commissioning organization transfers to the customer the protocols for testing electrical equipment with increased voltage, checking grounding and grounding devices, as well as executive circuit diagrams necessary for the operation of electrical equipment. The remaining protocols for the adjustment of electrical equipment are transferred in one copy to the customer within two months, and for technically complex objects - up to four months after the object has been accepted into operation.

Completion of commissioning at the third stage is documented by an act of technical readiness of electrical equipment for comprehensive testing.

4.19. At the fourth stage of commissioning, a comprehensive testing of electrical equipment is carried out according to approved programs.

At this stage, commissioning should be carried out to set up the interaction of electrical circuits and electrical equipment systems in various modes. These works include:

provision of interconnections, adjustment and adjustment of the characteristics and parameters of individual devices and functional groups of the electrical installation in order to ensure the specified operating modes on it;

testing of the electrical installation according to the full scheme at idle and under load in all modes of operation in order to prepare for a comprehensive testing of process equipment.

4.20. During the period of complex testing, maintenance of electrical equipment is carried out by the customer.

4.21. Commissioning at the fourth stage is considered completed after the electric equipment receives the electrical parameters and modes provided for by the project, which ensure a stable technological process for the production of the first batch of products in the amount established for the initial period of development of the design capacity of the facility.

4.22. The work of the commissioning organization is considered completed subject to the signing of the commissioning acceptance certificate.

AGREED
Glavgosenergonadzor of the Ministry of Energy of the USSR
January 31, 1985 No. 17-58
GUPO Ministry of Internal Affairs of the USSR
September 16, 1985 No. 7/6/3262
Chief Sanitary Doctor of the Ministry of Health of the USSR
January 14, 1985 N 122-4 / 336-4

This document has no reference to other regulatory documents.

Building regulations

Building regulations

SNiP 3.05.06-85

Electrical devices

DEVELOPED VNIIproektelektromontazhem Minmontazhspetsstroy USSR V.K.Dobrynin, I.N.Dolgov - leaders

themes, Candidate of Technical Sciences V.A. Antonov, A.L. Blinchikov, V.V. Belotserkovets, V.A. Yu.A. Roslov, S.N. Starostin, A.K. Shulzhitsky), Orgenergostroy of the Ministry of Energy of the USSR (G.N. Elenbogen, N.V. Belanov, N.A. Voinilovich, A.L. Gonchar, N.M. Lerner), Selenergoproekt of the Ministry of Energy of the USSR (G.F. Sumin, Yu.V. Nepomnyashchiy), UGPI Tyazhpromelektroproekt of the Minmontazhspetsstroy of the Ukrainian SSR (E.G. Poddubny, A.A. Koba).

INTRODUCED by the USSR Minmontazhspetsstroy.

APPROVED by the Decree of the State Committee of the USSR for Construction of December 11, 1985 No. 215

INSTEAD OF SNiP III-33-76*, SN 85-74, SN 102-76*.

These rules apply to the performance of work during the construction of new, as well as during the reconstruction, expansion and technical re-equipment of existing enterprises for the installation and commissioning of electrical devices, including: electrical substations, distribution points and overhead power lines with a voltage of up to 750 kV, cable lines with a voltage of up to 220 kV, relay protection, power electrical equipment, indoor and outdoor electric lighting, grounding devices.

The rules do not apply to. production and acceptance of work on the installation and adjustment of electrical devices of the subway, mines and mines, contact networks of electrified transport, signaling systems of railway transport, as well as high-security premises of nuclear power plants, which must be carried out in accordance with departmental building codes approved in the manner established by SNiP 1.01.01-82.

The rules must be observed by all organizations and enterprises involved in the design and construction of new, expansion, reconstruction and technical re-equipment of existing enterprises.

1. GENERAL PROVISIONS

The new version of the document is available free of charge to authorized correspondents.

SNiP 3.05.06-85

BUILDING REGULATIONS

Electrical devices

Introduction date 1986-01-07

DEVELOPED BY VNIIproektelektromontazhem of the USSR Minmontazhspetsstroy (V.K. Dobrynin, I.N. Dolgov - leaders

themes, Candidate of Technical Sciences V.A. Antonov, A.L. Blinchikov, V.V. Belotserkovets, V.A. Yu.A. Roslov, S.N. Starostin, A.K. Shulzhitsky), Orgenergostroy of the Ministry of Energy of the USSR (G.N. Elenbogen, N.V. Belanov, N.A. Voinilovich, A.L. Gonchar, N.M. Lerner), Selenergoproekt of the Ministry of Energy of the USSR (G.F. Sumin, Yu.V. Nepomnyashchiy), UGPI Tyazhpromelektroproekt of the Minmontazhspetsstroy of the Ukrainian SSR (E.G. Poddubny, A.A. Koba).

INTRODUCED by the USSR Minmontazhspetsstroy.

APPROVED by the Decree of the State Committee of the USSR for Construction of December 11, 1985 No. 215

INSTEAD OF SNiP III-33-76*, SN 85-74, SN 102-76*.

These rules apply to the performance of work during the construction of new, as well as during the reconstruction, expansion and technical re-equipment of existing enterprises for the installation and commissioning of electrical devices, including: electrical substations, distribution points and overhead power lines with a voltage of up to 750 kV, cable lines with a voltage of up to 220 kV, relay protection, power electrical equipment, indoor and outdoor electric lighting, grounding devices.

The rules do not apply to. production and acceptance of work on the installation and adjustment of electrical devices of the subway, mines and mines, contact networks of electrified transport, signaling systems of railway transport, as well as high-security premises of nuclear power plants, which must be carried out in accordance with departmental building codes approved in the manner established by SNiP 1.01.01-82.

The rules must be observed by all organizations and enterprises involved in the design and construction of new, expansion, reconstruction and technical re-equipment of existing enterprises.

1. GENERAL PROVISIONS

1.1. When organizing and performing work on the installation and commissioning of electrical devices, the requirements of SNiP 3.01.01-85, SNiP III-4-80, state standards, technical specifications should be observed. Rules for the installation of electrical installations approved by the USSR Ministry of Energy, and departmental regulatory documents approved in the manner established by SNiP 1.01.01-82.

1.2. Work on the installation and adjustment of electrical devices should be carried out in accordance with the working drawings of the main sets of drawings of electrical grades; according to the working documentation of electric drives; according to the working documentation of non-standardized equipment, made by the design organization; according to the working documentation of enterprises - manufacturers of technological equipment, supplying power and control cabinets with it.

1.3. The installation of electrical devices should be carried out on the basis of the use of nodal and complete-block construction methods, with the installation of equipment supplied in enlarged assemblies that do not require straightening, cutting, drilling or other fitting operations and adjustment during installation. When accepting working documentation for the production of work, it is necessary to check that it takes into account the requirements of the industrialization of the installation of electrical devices, as well as the mechanization of work on laying cables, rigging and installing technological equipment.

1.4. Electrical work should be carried out, as a rule, in two stages.

In the first stage, inside buildings and structures, work is carried out on the installation of supporting structures for the installation of electrical equipment and bus ducts, for laying cables and wires, installation of trolleys for electric overhead cranes, installation of steel and plastic pipes for electrical wiring, laying hidden wiring wires to plastering and finishing works, as well as work on the installation of external cable networks and grounding networks. The work of the first stage should be carried out in buildings and structures according to a combined schedule simultaneously with the main construction work, while measures should be taken to protect the installed structures and laid pipes from breakage and pollution.

In the second stage, work is carried out on the installation of electrical equipment, the laying of cables and wires, busbars and the connection of cables and wires to the terminals of electrical equipment. In the electrical rooms of the facilities, the work of the second stage should be carried out after the completion of the complex of general construction and finishing works and after the completion of the installation of plumbing devices, and in other rooms and areas - after the installation of technological equipment, electric motors and other electrical receivers, installation of technological, sanitary and technical pipelines and ventilation ducts.

At small facilities remote from the locations of electrical installation organizations, work should be carried out by mobile integrated teams with a combination of two stages of their implementation into one.

1.5. Electrical equipment, products and materials should be supplied according to the schedule agreed with the electrical installation organization, which should provide for the priority supply of materials and products included in the specifications for the blocks to be manufactured at the assembly and assembly enterprises of electrical installation organizations.

1.6. The end of the installation of electrical devices is the completion of individual tests of the installed electrical equipment and the signing by the working commission of an act on the acceptance of electrical equipment after an individual test. The beginning of individual testing of electrical equipment is the moment of introduction of the operating mode at this electrical installation, declared by the customer on the basis of a notice from the commissioning and electrical installation organizations.

1.7. At each construction site, during the installation of electrical devices, special logs for the production of electrical work should be kept in accordance with SNiP 3.01.01-85, and upon completion of work, the electrical installation organization is obliged to transfer to the general contractor the documentation presented to the working commission in accordance with SNiP III-3-81. The list of acts and protocols of inspections and tests is determined by the VSN, approved in accordance with the procedure established by SNiP 1.01.01-82.

2. PREPARATION FOR PRODUCTION

ELECTRICAL WORKS

2.1. The installation of electrical devices must be preceded by preparation in accordance with SNiP 3.01.01-85 and these rules.

2.2. Prior to the commencement of work at the facility, the following activities must be completed:

a) working documentation has been received in the amount and within the time specified by the Rules on Contracts for Capital Construction, approved by a resolution of the Council of Ministers of the USSR, and the Regulations on the Relationship between Organizations, General Contractors and Subcontractors, approved by the USSR State Construction Committee and the USSR State Planning Committee;

b) coordinated schedules for the supply of equipment, products and materials, taking into account the technological sequence of work, a list of electrical equipment installed with the involvement of the installation supervision personnel of the supplying enterprises, the conditions for transporting heavy and large-sized electrical equipment to the installation site;

c) the necessary premises have been taken to accommodate teams of workers, engineering and technical workers, a production base, as well as for storing materials and tools with the provision of measures for labor protection, fire safety and environmental protection in accordance with SNiP 3.01.01-85;

d) a project for the production of works was developed, the engineering and technical workers and foremen were familiarized with the working documentation and estimates, organizational and technical solutions for the project for the production of works;

e) the acceptance of the construction part of the facility for the installation of electrical devices in accordance with the requirements of these rules was carried out and the measures for labor protection, fire safety and environmental protection provided for by the norms and rules in the course of work were carried out;

f) the general contractor has performed general construction and auxiliary work, provided for by the Regulations on the relationship of organizations - general contractors with subcontractors.

2.3. Equipment, products, materials and technical documentation must be handed over for installation in accordance with the Rules on contracts for capital construction and the Regulations on the relationship of organizations - general contractors with subcontractors.

2.4. Upon acceptance of the equipment for installation, it is inspected, the completeness is checked (without disassembly), the presence and validity of the manufacturer's warranties are checked.

2.5. The condition of the cables on the drums must be checked in the presence of the customer by external inspection. The results of the inspection are documented.

2.6. When accepting prefabricated reinforced concrete structures of overhead lines (VL), the following should be checked:

the dimensions of the elements, the position of the steel embedded parts, as well as the quality of the surfaces and the appearance of the elements. The specified parameters must comply with GOST 13015.0-83, GOST 22687.0-85, GOST 24762-81, GOST 26071-84, GOST 23613-79, as well as PUE;

the presence on the surface of reinforced concrete structures intended for installation in an aggressive environment, waterproofing, made at the manufacturer.

2.7. Insulators and linear fittings must meet the requirements of the relevant state standards and specifications. Upon acceptance, check:

availability of a manufacturer's passport for each batch of insulators and linear fittings, certifying their quality;

the absence of cracks, deformations, shells, chips, damage to the glaze on the surface of the insulators, as well as the swaying and rotation of the steel reinforcement relative to the cement seal or porcelain;

the absence of cracks, deformations, shells and damage to galvanizing and threads in linear reinforcement.

Minor damage to galvanizing can be painted over.

2.8. Elimination of defects and damages discovered during the transfer of electrical equipment is carried out in accordance with the Rules on Contracts for Capital Construction.

2.9. Electrical equipment for which the normative storage period specified in state standards or technical conditions has expired is accepted for installation only after a pre-installation audit, defect correction and testing. The results of the work performed must be entered in the forms, passports and other accompanying documentation, or an act must be drawn up on the performance of the specified work.

2.10. Electrical equipment, products and materials accepted for installation should be stored in accordance with the requirements of state standards or technical specifications.

2.11. For large and complex facilities with a large volume of cable lines in tunnels, channels and cable half-floors, as well as electrical equipment in electrical rooms, measures for advanced installation (against the installation of cable networks) of internal fire water supply systems, automatic fire extinguishing and automatic fire signaling, provided for by the working drawings.

2.12. In electrical rooms (panel rooms, control rooms, substations and switchgears, machine rooms, battery rooms, cable tunnels and channels, cable half-floors, etc.), finishing floors with drainage channels, the necessary slope and waterproofing, and finishing works (plastering and painting ), embedded parts are installed and mounting openings are left, the load-lifting and load-moving mechanisms and devices provided for by the project are mounted, pipe blocks, holes and openings for the passage of pipes and cables, grooves, niches and nests are prepared in accordance with the architectural and construction drawings and the project for the production of works, power supply for temporary electric lighting in all rooms has been completed.

2.13. In buildings and structures, heating and ventilation systems must be put into operation, bridges, platforms and structures of suspended ceilings, provided by the project for the installation and maintenance of electric lighting installations located at a height, as well as fastening structures for multi-lamp fixtures (chandeliers) weighing more than 100 kg; asbestos-cement pipes and branch pipes and pipe blocks for the passage of cables were laid outside and inside the buildings and structures provided for by the working construction drawings.

2.14. Foundations for electrical machines should be handed over for installation with fully completed construction and finishing works, installed air coolers and ventilation ducts, with benchmarks and axial bars (measurements) in accordance with the requirements of SNiP 3.02.01-83 and these rules.

2.15. On the supporting (rough) surfaces of the foundations, depressions of not more than 10 mm and slopes of up to 1:100 are allowed. Deviations in construction dimensions should be no more than: according to axial dimensions in the plan - plus 30 mm, according to the height marks of the foundation surface (excluding the height of the gravy) - minus 30 mm, according to the dimensions of the ledges in the plan - minus 20 mm, according to the dimensions of the wells - plus 20 mm, along the ledge marks in the recesses and wells - minus 20 mm, along the axes of the anchor bolts in the plan - ± 5 mm, along the axes of the embedded anchor devices in the plan - ± 10 mm, along the marks of the upper ends of the anchor bolts - ± 20 mm.

2.16. The handover and acceptance of foundations for the installation of electrical equipment, the installation of which is carried out with the involvement of installation supervision personnel, is carried out jointly with representatives of the organization that carries out installation supervision.

2.17. Upon completion of finishing work in battery rooms, acid- or alkali-resistant coatings of walls, ceilings and floors should be made, heating, ventilation, plumbing and sewerage systems should be installed and tested.

2.18. Prior to the start of electrical work on open switchgears with a voltage of 35 kV and above, the construction organization must complete the construction of access roads, approaches and entrances, install busbar and linear portals, build foundations for electrical equipment, cable ducts with ceilings, fences around the outdoor switchgear, emergency discharge tanks oils, underground communications and the planning of the territory is completed. In the structures of portals and foundations for equipment, the embedded parts and fasteners provided for by the project, necessary for fastening the strings of insulators and equipment, must be installed. Embedded parts for fastening cable structures and air ducts must be installed in cable ducts and tunnels. The construction of a water supply system and other fire-fighting devices provided for by the project must also be completed.

2.19. The construction part of the outdoor switchgear and substations with a voltage of 330-750 kV should be accepted for installation for their full development, provided for by the project for the billing period.

2.20. Prior to the start of electrical work on the construction of overhead power lines with voltages up to 1000 V and above, preparatory work must be performed in accordance with SNiP 3.01.01-85, including:

inventory facilities were prepared at the locations of foremen's sites and temporary bases for storing materials and equipment; temporary access roads, bridges and installation sites were built;

clearings are arranged;

the demolition of buildings provided for by the project and the reconstruction of intersecting engineering structures located on the overhead line or near it and interfering with the work were carried out.

2.21. Routes for laying a cable in the ground must be prepared for the beginning of its laying in volume: water is pumped out of the trench and stones, clods of earth, construction debris are removed; at the bottom of the trench there is a pillow made of loosened earth; soil punctures were made at the intersections of the route with roads and other engineering structures, pipes were laid.

After laying the cables in the trench and submitting by the electrical installation organization an act for hidden work on laying the cables, the trench should be filled up.

2.22. Block sewer routes for laying cables must be prepared taking into account the following requirements:

the design depth of the blocks is maintained from the planning mark;

the correct laying and waterproofing of the joints of reinforced concrete blocks and pipes are ensured;

the cleanliness and alignment of the channels are ensured;

there are double covers (lower with a lock) for hatches of wells, metal ladders or brackets for descending into the well.

2.23. When constructing overpasses for laying cables on their supporting structures (columns) and on span structures, the embedded elements provided for by the project for the installation of cable rollers, bypass devices and other devices must be made.

2.24. The general contractor must submit construction readiness for acceptance for installation in residential buildings - section by section, in public buildings - floor by floor (or by premises).

Reinforced concrete, gypsum concrete, expanded clay concrete floor panels, internal wall panels and partitions, reinforced concrete columns and prefabricated crossbars must have channels (pipes) for laying wires, niches, sockets with embedded parts for installing sockets, switches, bells and bell buttons in accordance with working drawings. The flow sections of channels and monolithic non-metallic pipes should not differ by more than 15% from those indicated in the working drawings.

The displacement of nests and niches at the junctions of adjacent building structures should not be more than 40 mm.

2.25. In buildings and structures handed over for installation of electrical equipment, the general contractor must make holes, furrows, niches and nests in foundations, walls, partitions, ceilings and coatings provided for by architectural and construction drawings, necessary for the installation of electrical equipment and installation products, laying pipes for electrical wiring and electrical networks.

The indicated holes, grooves, niches and nests not left in the building structures during their erection are made by the general contractor in accordance with the architectural and construction drawings.

Holes with a diameter of less than 30 mm that cannot be taken into account when developing drawings and which cannot be provided in building structures according to the conditions of their manufacturing technology (holes in walls, partitions, ceilings only for installing dowels, studs and pins of various support structures) must carried out by the electrical installation organization at the place of work.

After performing electrical work, the general contractor is obliged to seal holes, grooves, niches and nests.

2.26. When accepting foundations for transformers, the presence and correct installation of anchors for fastening traction devices when rolling transformers and foundations for jacks for turning rollers should be checked.

3. PRODUCTION OF ELECTRICAL WORKS

GENERAL REQUIREMENTS

3.1. When loading, unloading, moving, lifting and installing electrical equipment, measures must be taken to protect it from damage, while heavy electrical equipment must be securely rafters for the parts provided for this purpose or in the places specified by the manufacturer.

3.2. Electrical equipment during installation is not subject to disassembly and revision, except when it is provided for by state and industry standards or technical conditions agreed in the prescribed manner.

Dismantling of equipment that arrived sealed from the manufacturer is prohibited.

3.3. Electrical equipment and cable products deformed or with damage to protective coatings are not subject to installation until the damage and defects are eliminated in the prescribed manner.

3.4. In the production of electrical work, standard sets of special tools for the types of electrical work, as well as mechanisms and devices designed for this purpose, should be used.

3.5. As supporting structures and fasteners for the installation of trolleys, bus ducts, trays, boxes, hinged shields and control stations, protective and starting equipment and lamps, factory-made products with increased assembly readiness (with a protective coating, adapted for fastening without welding and not requiring large labor costs for mechanical processing).

The support structures should be fastened by welding to the embedded parts provided in the building elements, or by fasteners (dowels, pins, studs, etc.). The method of fastening must be indicated in the working drawings.

3.6. The color designation of the current-carrying busbars of switchgears, trolleys, grounding buses, overhead lines should be carried out in accordance with the instructions given in the project.

3.7. When performing work, an electrical installation organization must comply with the requirements of GOST 12.1.004-76 and the Fire Safety Rules for the production of construction and installation works. When introducing an operational mode at the facility, ensuring fire safety is the responsibility of the customer.

CONTACT CONNECTIONS

3.8. Collapsible connections of tires and cores of wires and cables to the contact outlets of electrical equipment, installation products and busbars must meet the requirements of GOST 10434-82.

3.9. At the points of connection of conductors of wires and cables, a supply of wire or cable should be provided to ensure the possibility of reconnection.

3.10. Connections and branches must be accessible for inspection and repair. The insulation of connections and branches must be equivalent to the insulation of the cores of the connected wires and cables.

At the junctions and branches, wires and cables should not experience mechanical stress.

3.11. The termination of the cable core with impregnated paper insulation should be carried out with sealed current-carrying fittings (lugs), which do not allow leakage of the cable impregnating composition.

3.12. Connections and branches of busbars should be made, as a rule, non-separable (by welding).

In places where collapsible joints are required, busbar connections should be made with bolts or compression plates. The number of collapsible joints should be minimal.

3.13. Connections of wires of overhead lines with voltage up to 20 kV should be performed:

a) in the hinges of anchor-angle type supports: with clamps - anchor and branch wedges; connecting oval, mounted by crimping; loop ram, with the help of thermite cartridges, and wires of different grades and sections - with hardware pressed clamps;

b) in spans: connecting oval clamps mounted by twisting.

Single-wire wires are allowed to be connected by twisting. Butt welding of single-wire wires is not allowed.

3.14. The connection of wires of overhead lines with a voltage above 20 kV must be performed:

a) in the loops of anchor-angle type supports:

steel-aluminum wires with a cross section of 240 sq. mm and above - using thermite cartridges and crimping using explosion energy;

steel-aluminum wires with a cross section of 500 sq. mm and above - using pressed connectors;

wires of different brands - with bolt clamps;

wires made of aluminum alloy - with loop-type clamps or oval connectors, mounted by crimping;

b) in spans:

steel-aluminum wires with a cross section of up to 185 sq. mm and steel ropes with a cross section of up to 50 sq. mm - oval connectors mounted by twisting;

steel ropes with a cross section of 70-95 sq. mm with oval connectors mounted by crimping or crimping with additional thermite welding of the ends;

steel-aluminum wires with a cross section of 240-400 sq. mm with connecting clamps mounted by the method of continuous crimping and crimping using explosion energy;

steel-aluminum wires with a cross section of 500 sq. mm or more - with connecting clamps mounted by continuous crimping.

3.15. The connection of copper and steel-copper ropes with a cross section of 35-120 sq. mm, as well as aluminum wires with a cross section of 120-185 sq. mm, when installing contact networks, should be carried out with oval connectors, steel ropes - with clamps with a connecting strip between them. Steel-copper ropes with a cross section of 50-95 sq. mm are allowed to be joined with wedge clamps with a connecting bar between them.

ELECTRICAL WIRING

General requirements

3.16. The rules of this subsection apply to the installation of electrical wiring for power, lighting and secondary circuits with voltage up to 1000 V AC and DC, laid inside and outside buildings and structures with insulated installation wires of all sections and unarmored cables with rubber or plastic insulation with a cross section of up to 16 sq. mm.

3.17. Installation of control cables should be carried out taking into account the requirements of paragraphs. 3.56-3.106.

3.18. The passages of unarmored cables, protected and unprotected wires through fireproof walls (partitions) and interfloor ceilings must be made in pipe segments, or in boxes, or openings, and through combustible ones - in steel pipe segments.

Openings in walls and ceilings must be framed to prevent their destruction during operation. In places where wires and cables pass through walls, ceilings or exit to the outside, gaps between wires, cables and a pipe (duct, opening) should be sealed with an easily removable mass of fireproof material.

The seal must be made on each side of the pipe (duct, etc.).

In case of open laying of non-metallic pipes, the places of their passage through fire barriers must be sealed with fireproof materials immediately after laying cables or wires into pipes.

Sealing gaps between pipes (ducts, openings) and the building structure (see clause 2.25), as well as between wires and cables laid in pipes (ducts, openings), with an easily removable mass of non-combustible material, must ensure fire resistance corresponding to the fire resistance of the building structure .

Laying wires and cables on trays and in boxes

3.19. The design and degree of protection of trays and boxes, as well as the method of laying wires and cables on trays and boxes (in bulk, bundles, multilayer, etc.) must be specified in the project.

3.20. The installation method of the boxes should not allow the accumulation of moisture in them. The boxes used for open electrical wiring should, as a rule, have removable or opening covers.

3.21. For hidden gaskets, blind boxes should be used.

3.22. Wires and cables laid in boxes and on trays must be marked at the beginning and end of trays and boxes, as well as at the points of their connection to electrical equipment, and cables, in addition, also at turns and on branches.

3.23. Fastening of unprotected wires and cables with a metal sheath with metal brackets or bandages must be made with gaskets made of elastic insulating materials.

Laying wires on insulating supports

3.24. When laying on insulating supports, the connection or branching of the wires should be carried out directly at the insulator, wedge, roller or on them.

3.25. The distances between the attachment points along the route and between the axes of parallel laid unprotected insulated wires on insulating supports must be specified in the project.

3.26. Hooks and brackets with insulators must be fixed only in the main material of the walls, and rollers and clips for wires with a cross section of up to 4 sq. mm inclusive. can be fixed on plaster or on the cladding of wooden buildings. Hook insulators must be securely fastened.

3.27. When fastening rollers with capercaillie, metal and elastic washers should be placed under the capercaillie heads, and when attaching rollers to metal, elastic washers should be placed under their bases.

Laying wires and cables on a steel rope

3.28. Wires and cables (in polyvinylchloride, nayrite, lead or aluminum sheaths with rubber or polyvinylchloride insulation) must be fixed to the supporting steel rope or to the wire with bandages or clips installed at distances of not more than 0.5 m from each other.

3.29. Cables and wires laid on ropes, at the points of their transition from the rope to building structures, must be unloaded from mechanical stress.

Vertical wire suspensions on a steel rope should be located, as a rule, at the installation sites of junction boxes, plug connectors, lamps, etc. The rope sag in the spans between the fasteners should be within 1/40 - 1/60 of the span length. Splicing of ropes in the span between the end fixtures is not allowed.

3.30. Stretch marks must be installed on the steel rope to prevent swinging of the lighting wiring. The number of stretch marks must be determined in the working drawings.

3.31. For branches from special cable wires, special boxes should be used that ensure the creation of a cable loop, as well as the supply of cores necessary to connect the outgoing line using branch clamps without cutting the line.

Laying installation wires on building grounds

and inside the main building structures

3.32. Open and hidden laying of installation wires is not allowed at temperatures below minus 15 ° C.

3.33. When laying hidden wires under a layer of plaster or in thin-walled (up to 80 mm) partitions, the wires must be laid parallel to the architectural and construction lines. The distance of horizontally laid wires from floor slabs should not exceed 150 mm. In building structures with a thickness of more than 80 mm, wires must be laid along the shortest routes.

3.34. All connections and branches of the installation wires must be made by welding, crimping in sleeves or using clamps in junction boxes.

Metal junction boxes at the points where wires are inserted into them must have bushings made of insulating materials. It is allowed to use segments of a PVC tube instead of bushings. In dry rooms, it is allowed to place wire branches in nests and niches of walls and ceilings, as well as in ceiling voids. The walls of the nests and niches must be smooth, the branches of the wires located in the nests and niches must be covered with covers made of fireproof material.

3.35. The fastening of flat wires with hidden laying should ensure their tight fit to the building bases. In this case, the distances between the attachment points should be:

a) when laying on horizontal and vertical sections of plastered bundles of wires - no more than 0.5 m; single wires -0.9 m;

b) when covering the wires with dry plaster - up to 1.2 m.

Approved

Decree of the Gosstroy of the USSR

BUILDING REGULATIONS

ELECTRICAL DEVICES

SNiP 3.05.06-85

Entry into force

Developed by VNIIproektelektromontazh of the USSR Minmontazhspetsstroy (V.K. Dobrynin, I.N. Dolgov - leaders of the theme, Candidate of Technical Sciences V.A. Antonov, A.L. Blinchikov, V.V. Belotserkovets, V.A. Demyantsev, Candidate of N.I. Korotkov, E.G. Panteleev, Yu.A. Roslov, S.N. Starostin, A.K. N.V. Balanov, N.A. Voinilovich, A.P. Gonchar, N.M. Lerner), Selenergoproekt of the USSR Ministry of Energy (G.F. Sumin, Yu.V. Nepomnyashchiy), UGPI Tyazhpromelektroproekt Minmontazhspetsstroy of the Ukrainian SSR (E.G. Poddubny, A.A. Koba).

Introduced by the USSR Minmontazhspetsstroy.

Prepared for approval by the Glavtekhnormirovanie Gosstroy of the USSR (B.A. Sokolov).

With the entry into force of SNiP 3.05.06-85 "Electrical devices", SNiP III-33-76 *, SN 85-74, SN 102-76 * become invalid.

Agreed with the Glavgosenergonadzor of the USSR Ministry of Energy (letter of January 31, 1985 N 17-58), the GUPO of the USSR Ministry of Internal Affairs (letter of September 16, 1985 N 7/6/3262), the chief sanitary doctor of the USSR Ministry of Health (letter of January 14, 1985 N 122-4/336-4).

These rules apply to the performance of work during the construction of new, as well as during the reconstruction, expansion and technical re-equipment of existing enterprises for the installation and commissioning of electrical devices, including: electrical substations, distribution points and overhead power lines with a voltage of up to 750 kV, cable lines with a voltage of up to 220 kV, relay protection, power electrical equipment, indoor and outdoor electric lighting, grounding devices.

The rules do not apply to the production and acceptance of work on the installation and adjustment of electrical devices of the subway, mines and mines, contact networks of electrified transport, signaling systems of railway transport, as well as high security rooms of nuclear power plants, which must be carried out in accordance with departmental building codes approved in in the manner established by SNiP 1.01.01-82.

The rules must be observed by all organizations and enterprises involved in the design and construction of new, expansion, reconstruction and technical re-equipment of existing enterprises.

1. GENERAL PROVISIONS

1.1. When organizing and performing work on the installation and commissioning of electrical devices, the requirements of SNiP 3.01.01-85, SNiP III-4-80, state standards, technical specifications, Rules for the installation of electrical installations approved by the USSR Ministry of Energy, and departmental regulatory documents approved in the order established by SNiP 1.01.01-82.

1.2. Work on the installation and adjustment of electrical devices should be carried out in accordance with the working drawings of the main sets of drawings of electrical grades; according to the working documentation of electric drives; according to the working documentation of non-standardized equipment, made by the design organization; according to the working documentation of enterprises - manufacturers of technological equipment, supplying power and control cabinets with it.

1.3. The installation of electrical devices should be carried out on the basis of the use of nodal and complete-block construction methods, with the installation of equipment supplied in enlarged assemblies that do not require straightening, cutting, drilling or other fitting operations and adjustment during installation. When accepting working documentation for the production of work, it is necessary to check that it takes into account the requirements of the industrialization of the installation of electrical devices, as well as the mechanization of work on laying cables, rigging and installing technological equipment.

1.4. Electrical work should be carried out, as a rule, in two stages.

In the first stage, inside buildings and structures, work is carried out on the installation of supporting structures for the installation of electrical equipment and bus ducts, for laying cables and wires, installation of trolleys for electric overhead cranes, installation of steel and plastic pipes for electrical wiring, laying hidden wiring wires to plastering and finishing works, as well as work on the installation of external cable networks and grounding networks. The work of the first stage should be carried out in buildings and structures according to a combined schedule simultaneously with the main construction work, while measures should be taken to protect the installed structures and laid pipes from breakage and pollution.

In the second stage, work is carried out on the installation of electrical equipment, the laying of cables and wires, busbars and the connection of cables and wires to the terminals of electrical equipment. In the electrical rooms of the facilities, the work of the second stage should be carried out after the completion of the complex of general construction and finishing works and after the completion of the installation of plumbing devices, and in other rooms and areas - after the installation of technological equipment, electric motors and other electrical receivers, installation of technological, sanitary and technical pipelines and ventilation ducts.

At small facilities remote from the locations of electrical installation organizations, work should be carried out by mobile integrated teams with a combination of two stages of their implementation into one.

1.5. Electrical equipment, products and materials should be supplied according to the schedule agreed with the electrical installation organization, which should provide for the priority supply of materials and products included in the specifications for the blocks to be manufactured at the assembly and assembly enterprises of electrical installation organizations.

1.6. The end of the installation of electrical devices is the completion of individual tests of the installed electrical equipment and the signing by the working commission of an act on the acceptance of electrical equipment after an individual test. The beginning of individual testing of electrical equipment is the moment of introduction of the operating mode at this electrical installation, declared by the customer on the basis of a notice from the commissioning and electrical installation organizations.

1.7. At each construction site, during the installation of electrical devices, special logs for the production of electrical work should be kept in accordance with SNiP 3.01.01-85, and upon completion of work, the electrical installation organization is obliged to transfer to the general contractor the documentation presented to the working commission in accordance with SNiP III-3-81. The list of acts and protocols of inspections and tests is determined by the VSN, approved in accordance with the procedure established by SNiP 1.01.01-82.

2. PREPARATION FOR ELECTRICAL INSTALLATION

2.1. The installation of electrical devices must be preceded by preparation in accordance with SNiP 3.01.01-85 and these rules.

2.2. Prior to the commencement of work at the facility, the following activities must be completed:

a) working documentation has been received in the amount and within the time specified by the Rules on Contracts for Capital Construction, approved by a resolution of the Council of Ministers of the USSR, and the Regulations on the relationship of organizations - general contractors with subcontractors, approved by the USSR State Construction Committee and the USSR State Planning Committee;

b) coordinated schedules for the supply of equipment, products and materials, taking into account the technological sequence of work, a list of electrical equipment installed with the involvement of the installation supervision personnel of the supplying enterprises, the conditions for transporting heavy and large-sized electrical equipment to the installation site;

c) the necessary premises have been taken to accommodate teams of workers, engineering and technical workers, a production base, as well as for storing materials and tools with the provision of measures for labor protection, fire safety and environmental protection in accordance with SNiP 3.01.01-85;

d) a project for the production of works was developed, the engineering and technical workers and foremen were familiarized with the working documentation and estimates, organizational and technical solutions for the project for the production of works;

e) the acceptance of the construction part of the facility for the installation of electrical devices in accordance with the requirements of these rules was carried out and the measures for labor protection, fire safety and environmental protection provided for by the norms and rules in the course of work were carried out;

f) the general contractor has performed general construction and auxiliary work, provided for by the Regulations on the relationship of organizations - general contractors with subcontractors.

2.3. Equipment, products, materials and technical documentation must be handed over for installation in accordance with the Rules on contracts for capital construction and the Regulations on the relationship of organizations - general contractors with subcontractors.

2.4. Upon acceptance of the equipment for installation, it is inspected, the completeness is checked (without disassembly), the presence and validity of the manufacturer's warranties are checked.

2.5. The condition of the cables on the drums must be checked in the presence of the customer by external inspection. The results of the inspection are documented.

2.6. When accepting prefabricated reinforced concrete structures of overhead lines (VL), the following should be checked:

the dimensions of the elements, the position of the steel embedded parts, as well as the quality of the surfaces and the appearance of the elements. The specified parameters must comply with GOST 13015.0-83, GOST 22687.0-85, GOST 24762-81, GOST 26071-84, GOST 23613-79, as well as PUE;

the presence on the surface of reinforced concrete structures intended for installation in an aggressive environment, waterproofing, made at the manufacturer.

2.7. Insulators and linear fittings must meet the requirements of the relevant state standards and specifications. Upon acceptance, check:

availability of a manufacturer's passport for each batch of insulators and linear fittings, certifying their quality;

the absence of cracks, deformations, shells, chips, damage to the glaze on the surface of the insulators, as well as the swaying and rotation of the steel reinforcement relative to the cement seal or porcelain;

the absence of cracks, deformations, shells and damage to galvanizing and threads in linear reinforcement.

Minor damage to galvanizing can be painted over.

2.8. Elimination of defects and damages discovered during the transfer of electrical equipment is carried out in accordance with the Rules on Contracts for Capital Construction.

2.9. Electrical equipment for which the normative storage period specified in state standards or technical conditions has expired is accepted for installation only after a pre-installation audit, defect correction and testing. The results of the work performed must be entered in the forms, passports and other accompanying documentation, or an act must be drawn up on the performance of the specified work.

2.10. Electrical equipment, products and materials accepted for installation should be stored in accordance with the requirements of state standards or technical specifications.

2.11. For large and complex facilities with a large volume of cable lines in tunnels, channels and cable half-floors, as well as electrical equipment in electrical rooms, measures for advanced installation (against the installation of cable networks) of internal fire water supply systems, automatic fire extinguishing and automatic fire signaling, provided for by the working drawings.

2.12. In electrical rooms (panel rooms, control rooms, substations and switchgear, machine rooms, battery rooms, cable tunnels and channels, cable half-floors, etc.), finishing floors with drainage channels, the necessary slope and waterproofing, and finishing works (plastering and painting ), embedded parts are installed and mounting openings are left, the load-lifting and load-moving mechanisms and devices provided for by the project are mounted, pipe blocks, holes and openings for the passage of pipes and cables, grooves, niches and nests are prepared in accordance with the architectural and construction drawings and the project for the production of works, power supply for temporary electric lighting in all rooms has been completed.

2.13. In buildings and structures, heating and ventilation systems must be put into operation, bridges, platforms and structures of suspended ceilings, provided by the project for the installation and maintenance of electric lighting installations located at a height, as well as fastening structures for multi-lamp fixtures (chandeliers) weighing more than 100 kg; asbestos-cement pipes and branch pipes and pipe blocks for the passage of cables were laid outside and inside the buildings and structures provided for by the working construction drawings.

ConsultantPlus: note.

Instead of SNiP 3.02.01-83, SNiP 3.02.01-87 was put into effect by Decree of the USSR Gosstroy of December 4, 1987 N 280 from July 1, 1988.

2.14. Foundations for electrical machines should be handed over for installation with fully completed construction and finishing works, installed air coolers and ventilation ducts, with benchmarks and axial bars (brands) in accordance with the requirements of SNiP 3.02.01-83 and these rules.

2.15. On the supporting (rough) surfaces of the foundations, depressions of not more than 10 mm and slopes of up to 1:100 are allowed. Deviations in construction dimensions should be no more than: according to axial dimensions in the plan - plus 30 mm, according to the height marks of the foundation surface (excluding the height of the gravy) - minus 30 mm, according to the dimensions of the ledges in the plan - minus 20 mm, according to the dimensions of the wells - plus 20 mm, along the ledge marks in the recesses and wells - minus 20 mm, along the axes of the anchor bolts in the plan - +/- 5 mm, along the axes of the embedded anchor devices in the plan - +/- 10 mm, along the marks of the upper ends of the anchor bolts - + /- 20 mm.

2.16. The handover and acceptance of foundations for the installation of electrical equipment, the installation of which is carried out with the involvement of installation supervision personnel, is carried out jointly with representatives of the organization that carries out installation supervision.

2.17. Upon completion of finishing work in battery rooms, acid- or alkali-resistant coatings of walls, ceilings and floors should be made, heating, ventilation, plumbing and sewerage systems should be installed and tested.

2.18. Prior to the start of electrical work on open switchgears with a voltage of 35 kV and above, the construction organization must complete the construction of access roads, approaches and entrances, install busbar and linear portals, build foundations for electrical equipment, cable ducts with ceilings, fences around the outdoor switchgear, emergency discharge tanks oils, underground communications and the planning of the territory is completed. In the structures of portals and foundations for equipment, the embedded parts and fasteners provided for by the project, necessary for fastening the strings of insulators and equipment, must be installed. Embedded parts for fastening cable structures and air ducts must be installed in cable ducts and tunnels. The construction of a water supply system and other fire-fighting devices provided for by the project must also be completed.

2.19. The construction part of the outdoor switchgear and substations with a voltage of 330 - 750 kV should be accepted for installation for their full development, provided for by the project for the billing period.

2.20. Prior to the start of electrical work on the construction of overhead power lines with voltages up to 1000 V and above, preparatory work must be carried out in accordance with SNiP 3.01.01-85, including:

inventory facilities were prepared at the locations of foremen's sites and temporary bases for storing materials and equipment; temporary access roads, bridges and installation sites were built;

clearings are arranged;

the demolition of buildings provided for by the project and the reconstruction of intersecting engineering structures located on the overhead line or near it and interfering with the work were carried out.

2.21. Routes for laying a cable in the ground must be prepared for the beginning of its laying in volume: water is pumped out of the trench and stones, clods of earth, construction debris are removed; at the bottom of the trench there is a pillow made of loosened earth; soil punctures were made at the intersections of the route with roads and other engineering structures, pipes were laid.

After laying the cables in the trench and submitting by the electrical installation organization an act for hidden work on laying the cables, the trench should be filled up.

2.22. Block sewer routes for laying cables must be prepared taking into account the following requirements:

the design depth of the blocks is maintained from the planning mark;

the correct laying and waterproofing of the joints of reinforced concrete blocks and pipes are ensured;

the cleanliness and alignment of the channels are ensured;

there are double covers (lower with a lock) for hatches of wells, metal ladders or brackets for descending into the well.

2.23. When constructing overpasses for laying cables on their supporting structures (columns) and on span structures, the embedded elements provided for by the project for the installation of cable rollers, bypass devices and other devices must be made.

2.24. The general contractor must submit construction readiness for acceptance for installation in residential buildings - section by section, in public buildings - floor by floor (or by premises).

Reinforced concrete, gypsum concrete, expanded clay concrete floor panels, internal wall panels and partitions, reinforced concrete columns and prefabricated crossbars must have channels (pipes) for laying wires, niches, sockets with embedded parts for installing sockets, switches, bells and bell buttons in accordance with working drawings. The flow sections of channels and monolithic non-metallic pipes should not differ by more than 15% from those indicated in the working drawings.

The displacement of nests and niches at the junctions of adjacent building structures should not be more than 40 mm.

2.25. In buildings and structures handed over for installation of electrical equipment, the general contractor must make holes, furrows, niches and nests in foundations, walls, partitions, ceilings and coatings provided for by architectural and construction drawings, necessary for the installation of electrical equipment and installation products, laying pipes for electrical wiring and electrical networks.

The indicated holes, grooves, niches and nests not left in the building structures during their erection are made by the general contractor in accordance with the architectural and construction drawings.

Holes with a diameter of less than 30 mm that cannot be taken into account when developing drawings and which cannot be provided in building structures according to the conditions of their manufacturing technology (holes in walls, partitions, ceilings only for installing dowels, studs and pins of various support structures) must carried out by the electrical installation organization at the place of work.

After performing electrical work, the general contractor is obliged to seal holes, grooves, niches and nests.

2.26. When accepting foundations for transformers, the presence and correct installation of anchors for fastening traction devices when rolling transformers and foundations for jacks for turning rollers should be checked.

3. PRODUCTION OF ELECTRICAL WORKS

GENERAL REQUIREMENTS

3.1. When loading, unloading, moving, lifting and installing electrical equipment, measures must be taken to protect it from damage, while heavy electrical equipment must be securely rafters for the parts provided for this purpose or in the places specified by the manufacturer.

3.2. Electrical equipment during installation is not subject to disassembly and revision, except when it is provided for by state and industry standards or technical conditions agreed in the prescribed manner.

Dismantling of equipment that arrived sealed from the manufacturer is prohibited.

3.3. Electrical equipment and cable products deformed or with damage to protective coatings are not subject to installation until the damage and defects are eliminated in the prescribed manner.

3.4. In the production of electrical work, standard sets of special tools for the types of electrical work, as well as mechanisms and devices designed for this purpose, should be used.

3.5. As supporting structures and fasteners for the installation of trolleys, bus ducts, trays, boxes, hinged shields and control stations, protective and starting equipment and lamps, factory-made products with increased assembly readiness (with a protective coating, adapted for fastening without welding and do not require large labor costs for mechanical processing).

Support structures should be fastened by welding to embedded parts provided in building elements, or by fasteners (dowels, pins, studs, etc.). The method of fastening must be indicated in the working drawings.

3.6. The color designation of the current-carrying busbars of switchgears, trolleys, grounding buses, overhead lines should be carried out in accordance with the instructions given in the project.

3.7. When performing work, an electrical installation organization must comply with the requirements of GOST 12.1.004-76 and the Fire Safety Rules for the production of construction and installation works. When introducing an operational mode at the facility, ensuring fire safety is the responsibility of the customer.