GOST 51778-2001 UDC 621.316.34:006.354 Group E17 STATE STANDARD OF THE RUSSIAN FEDERATION SHIELDS DISTRIBUTION FOR INDUSTRIAL AND PUBLIC BUILDINGS General specifications Distribution boards for industrial and social buildings. General specifications OKP 34 3437 ACS 29.240.30 Effective date 1/1/2002 Preface 1 developed and submitted JSC Central Design Bureau "Wiring" INTRODUCED Standardization Technical Committee TC 331 "Low-voltage switchgear and distribution management" 2 ACCEPTED AND PUT INTO ACT Decision on State Standards of Russia from July 11, 2001 № 266-v. 3 first introduced Introduction The purpose of this standard - Update the regulatory framework and requirements for development and production of distribution boards that meet international standards in terms of their possible applications in networks with the types of earthing systems TN -S, TN-C, TN-CS, TT 30331.2/GOST GOST R 50571.2, as well as protection against electric shock and fire safety. In addition, the development of a standard necessitating the extension of the scope as shields against climatic requirements and functional use, based on the use of modern machines and devices. Given that the standard should be used for certification boards, require refinement of test methods (for a more objective evaluation), including tests at temperatures exceeding the nominal operating currents shields and nominal operating currents embedded in these devices. In developing the standard also takes into account the specific requirements set by GOST 22789 and GOST R 51321.3 to complete switchgear. 1 Scope 1.1 This standard applies to the distribution board (hereinafter - the flaps) used in lighting and power installations of industrial, public, administrative and similar buildings for the reception and distribution of electricity at a voltage of 380/220 and 660/380 three-phase AC at 50 - 60 Hz, occasional on and off line group of chains, as well as to protect them in case of overload and short circuits. 1.2 Standards apply to plates, attached to a three-phase networks with the types of earthing systems TN-S, TN-C, TN-CS, TT 30331.2/GOST GOST P 50571.2. Schemes joining flaps with different types of grounding systems are given in Appendix A. 1.3 Types of climate performances according to GOST 15150 and GOST 15543.1 - U3, UHL3, T3, UHL4, T4 (may be other climatic performance of boards or the same performance with a different range of ambient temperatures) . 1.4 Shields may be installed in areas accessible for use by untrained personnel to perform switching operations. 1.5 The standard establishes requirements for the panel, produced for the needs of the country's economy and exports. 1.6 All items of standard requirements are mandatory, except for 5.5 and 6.6.3 relating to the recommended. 2 Normative references in this standard references to the following standards: GOST 2.601-95 Unified system for design documentation. Operational documents GOST 9.032-74 Unified system of corrosion and aging. Paint coatings. Group's technical requirements and designations GOST 9.302-88 Unified system of corrosion and aging. Coverage and non-metallic inorganic. Control methods GOST 9.303-84 Unified system of corrosion and aging. Coverage and non-metallic inorganic. General requirements for the selection of GOST 9.401-91 Unified system of corrosion and aging. Paint coatings. General requirements and methods of accelerated tests for resistance to climatic factors GOST 9.410-88 Unified system of corrosion and aging. Powder coating polymer. Typical processes GOST 12.1.004-91 safety standards system. Fire safety. General requirements of GOST 12.2.007.0-75 safety standards system. Electrotechnical products. General safety requirements of GOST 12.4.026-76 safety standards system. Color signal and safety signs GOST 10434-82 electrical contact connections. Classification. General technical requirements GOST 11516-94 Hand-held tools for working with voltages up to 1000 V ac and 1500 V dc GOST 14192-96 Cargo marking GOST 14254-96 (IEC 529-89) Degrees of protection provided by enclosures (code IP) GOST 15140 - 78 Paints and varnishes. Methods for determining the adhesion of 15150-69 Machines, tools and other industrial products. Designs for different climatic regions. Category, environmental conditions, storage and transportation of the impact of climatic factors of the environment GOST 15151-69 machinery, appliances and other industrial products for the areas with tropical climates. General specifications GOST 15543.1-89 Electrotechnical products. General requirements for resistance to climatic external influencing factors GOST 15963-79 Electrotechnical products for areas with tropical climates. General technical requirements and test methods GOST 16962.1-89 (IEC 68-2-1-74) Electrotechnical products. Test methods for resistance to climatic external influencing factors GOST 16962.2-90 Electrotechnical products. Test method for resistance to mechanical external influencing factors GOST 17412-72 Electrotechnical products for areas with cold climates. Technical requirements, acceptance and test methods GOST 17516.1-90 Electrotechnical products. General requirements for the part of the resistance to mechanical external influencing factors GOST 18620-86 Electrotechnical products. Marking GOST 21130-75 Electrotechnical products. Ground terminal and ground signs. The design and dimensions GOST 21991-89 (IEC 447-74) electrical equipment. Electrical apparatus. The direction of movement of controls GOST 22789-94 (IEC 439-1-85) low-voltage devices. General technical requirements and test methods to GOST 23216-78 Electrotechnical products. Storage, transportation, temporary corrosion protection, packaging, general requirements and test methods to GOST 27483-87 (IEC 695-2-1-80) Tests for flammability. Test methods. Tests of a heated wire to GOST 27924-88 (IEC 695-2-3-84) Tests for flammability. Test methods. Tests for poor contact with the filament elements 30331.2-95 Standard (IEC 364-3-93) / GOST 50571.2-94 (IEC 364-3-93) Electrical installations of buildings. Part 3. The main characteristics of GOST R IEC 536-94 Classification of electrical and electronic equipment in the way of protection against electric shock, GOST R 50030.1-2000 (IEC 60947-1-99), switchgear and control low voltage. Part 1. General requirements and test methods to GOST R 50462-92 (IEC 446-89) Identification of conductors by colors or numerals GOST 51321.3-99 (IEC 60439-3-90), low-voltage devices. Part 3. Additional requirements for distribution and control devices intended for use in areas accessible to unqualified personnel, and test methods 3 Definitions In this standard, the following terms: 3.1 The protective earth conductor (PE): According to GOST R 50571.1 30331.1/GOST. 3.2 neutral conductor (N): According to GOST R 50571.1 30331.1/GOST. 3.3 combined zero-worker and the protective conductor (PEN-conductor): According to GOST R 50571.1 30331.1/GOST. 3.4 branch circuit: Electrical circuit of the flap to the power consumers (power consumers). 3.5 rated current of the device: According to GOST 50030.1. 3.6 Nominal operating current system: According to GOST 50030.1. 3.7 Rated short time withstand short circuit current: According to GOST 22789. 3.8 rated current flap: Rated current induction device built into the panel, established under the terms of the permissible heating (see Appendix B). 3.9 shell: According to GOST 14254. 3.10 Operational Panel: The panel, which are derived controls devices, controls and other elements. 3.11 Body: The main element of design panel, which joined other design elements, including a shell. Note - The envelope may serve as the body. 4 Classification 4.1 Shields should be classified by the following features: - performance relating to the type of installation (attachments, embedded in a niche, 6.2) - the existence of disconnecting the device for input (with the device without the device, Table 1) - availability of electricity metering (with counter, without a meter, 6.2) - the number of protective devices group chains (Table 1) - note the protective devices group circuits (circuit breakers, table 1), - the presence of residual current device - RCD (with RCD without UST table 1) - the staff protection against electric shock (classes I and II according to GOST R IEC 536). 4.2 Signs that match specific performance boards must be specified in the technical specifications for specific types of plates and in the documentation of the manufacturer. 5 Key parameters 5.1 Basic parameters of plates shall be as specified in Table 1 and adjusted to the technical specifications for specific types of shields. Table 1 Basic parameters of flaps Name Parameter Value 1 Rated voltage at the input panel, B 380/220, 660/380 2 Nominal AC frequency, Hz 50, 60 3 Rated current of induction machine or terminal, 40, 63, 100, 125 , 160, 250 4 Rated current flap and the nominal operating current protective devices group circuits, A See 5.3 5 Rated tripping differential current UST on the input panel, mA 30, 100, 300 6 The maximum number of protective devices installed in the shield for the lines of group chains a single-pole terms: * a) circuit breakers and RCD 6, 12, 18, 24, 30 b) threaded fuses 6, 9, 12 July Nominal current circuit breaker and / or RCD group circuit, A 10, 16, 20, 25, 32, 40, 50, 63 8 Nominal tripping differential current RCD group chain, mA 10, 30 September Fuse group circuit, A 6, 10, 16, 25 10 Rated short-time withstand short-circuit current (rms) ** on input boards and bus bars with nominal currents of induction machines at 160 and 250 A, kA, 12 * the maximum number of vehicles in the flaps (see paragraph 6), taking into account the possible installation of the administrative apparatus, alarm systems, and measurements determine their sizes. The actual filling of the appropriate size panel devices - according to the order within the current rating panel (see also 5.2). ** Peak short circuit current - 20 kA. 5.2 In consultation with the consumer, the manufacturer may supply a separate shell plates, designed for the subsequent installation of these protective devices and consumer appliances to 6.6.3. Shell plates must be accompanied by detailed instructions for filling them out, compiled using data from the test panels in similar shells in the volume requirements of this standard. 5.3 The values ??of nominal currents flaps and nominal operating current protective devices group chains should be installed in the technical specifications for specific types of shields at the upper level of the working ambient temperature for the respective climatic performance of 1.3, unless other limits the ambient temperature is not specified in the specifications. 5.4 The values ??of nominal currents flaps and nominal operating current protective devices for the 5.3 should be determined in accordance with Appendix B and driven by operational documents. 5.5 It is also recommended to give effect to these documents currents flaps Climatic versions V3 and protective devices at an ambient temperature of 25 ° C under the conditions allowed the heating element guards for 6.8.1. 5.6 Main dimensions and weight of panels (the largest for each size) should be indicated in the technical specifications for specific types of shields. 5.7 Designation types of shields is recommended to form in accordance with Annex B. 6 Common technical requirements 6.1 General requirements 6.1.1 boards shall comply with the requirements of this standard and technical requirements for specific types of boards and working drawings approved in the prescribed manner. 6.1.2 Shields for export, must also satisfy the requirements of the contract for the supply. 6.2 Design 6.2.1 Shields shall be constructed of materials that are resistant to mechanical, electrical and thermal stresses arising during operation. 6.2.2 Shells flaps class I can be made of metal with a possible combination with other nonflammable and incombustible materials. 6.2.3 Shells boards of Class II shall be made of insulating material, is resistant to ignition when exposed to hot temperatures (850 ± 10) ° C wire, when embedded in a niche boards are not readily walls - (650 ± 10) ° C (see Standard P 51321.3). If the shell plates are used to install on the internal surfaces of live parts, resistance to fire shells at these sites must conform to 6.2.4. 6.2.4 Insulation details shields, which are fixed live parts shall be constructed of materials that are resistant to ignition when exposed to a wire, heated to a temperature (960 ± 15) ° C, in accordance with GOST 51321.3. 6.2.5 Heat shells flaps class II, as well as insulating components flaps of Class I and II should correspond to GOST R 51321.3. 6.2.6 Shells flaps class I should have resistance to corrosion. 6.2.7 For the shields of tropical execution must take into account requirements for materials in accordance with GOST 15151, and for shields climatic performance UHL3 - GOST 17412. 6.2.8 Shells boards should have resistance to mechanical impact energy 0.25 J. Shields 6.2.9 Attachment of execution should be on the envelopes of the elements for mounting on walls and other vertical structures of buildings. 06/02/1910 Shields, set in niches, must have appropriate items for their mounts and frames to close the edges of the niches. 02/06/1911 Detachable shell plates shall not be used to attach them aids and devices. 06/02/1912 Detachable shell plates shall be removed only by using the tool. 06/02/1913 Mechanical strength of threaded fastening means of removable parts of the shells must comply with GOST R 51321.3. 06/02/1914 Shields, in which to protect the lines of group circuits provides circuit breakers and residual current can be made with a tripping device for input or without it. If in the shields provides installation of meters, then their input should be tripping devices. 06/02/1915 in shield without disconnecting the device for input should be a clip to attach the conductors supply chain. 06/02/1916 Shields, in which as the protective devices group lines circuits using fuses, shall be made only with the device for input. 06/02/1917 Shields may have pursuant to the doors or without them. Door panels must be locked with a key. In the flaps, if they do not set the counters are allowed, by agreement between the consumer and the manufacturer, locking doors without a key, if this should exclude their spontaneous opening. The required number of keys to the castle is set in the technical specifications for specific types of shields. 06/02/1918 In the flaps with the counters with the transformer connection should provide a separate compartment with door, lockable, to accommodate the lead vehicle, current transformers, the test box and counter. 02.06.1919 Over the door panel must be located with the operational panel connected on its government apparatus, which in combination with other elements of the panel should exclude access to live parts when the door is open. In shield doors without this function should perform operational panel. 02/06/1920 In the flaps with the counters to prevent unauthorized access to circuits of electricity metering (on the input terminals introductory apparatus to enter into the counter) must be provided by structural members with the possibility of sealing. This element can be operational panel on 2/6/1919. 06.02.1921 By agreement between the consumer and the manufacturer on the doors may provide the elements for their sealing. 02/06/1922 in the door panels with meters must be windows, lockable impact-resistant transparent material, for metering. Windows must withstand the shocks according to 6.2.8. 06/02/1923 flaps should open doors without jamming in the corner, providing convenient access to the device at installation and maintenance of guards, but not less than 95 °. 06/02/1924 in shells boards should be the elements of input conductors and supply chain group. In shells hinged flaps execution of these elements should provide the degree of protection to 6.4.1 in the established position with the introduced agents. 06/02/1925 On the operational panel flap should be performed marking the protective devices group chains serial numbers. Next to the numbers of devices shall be provided for recording of their appointment. General specifications GOST 2.702-75 Unified system for design documentation. Rules for making electronic circuits with GOST 2.752-71 Unified system for design documentation. Graphical symbols in diagrams. Robot device GOST 2.755-87 Unified system for design documentation. Graphical symbols in electrical circuits. Device switching and contact connections GOST 2.756-76 * Unified system for design documentation. Graphical symbols in diagrams. Is often perceived electromechanical devices GOST 2.757-81 * Unified system for design documentation. Graphical symbols in diagrams. Elements of the switching field for switching systems GOST 2.758-81 Unified system for design documentation. Graphical symbols in diagrams. Signal Technology GOST 2.762-85 * Unified system for design documentation. Graphical symbols in electrical circuits. Frequencies and frequency bands for transmission systems GOST 2.763-85 * Unified system for design documentation. Graphical symbols in electrical circuits. Device with a pulse-code modulation GOST 2.764-86 Unified system for design documentation. Graphical symbols in electrical circuits. Integrated optoelectronic display elements GOST 2.768-90 Unified system for design documentation. Graphical symbols in diagrams.
GOST 51778-2001 UDC 621.316.34:006.354 Group E17 STATE STANDARD OF THE RUSSIAN FEDERATION SHIELDS DISTRIBUTION FOR INDUSTRIAL AND PUBLIC BUILDINGS General specifications Distribution boards for industrial and social buildings. General specifications OKP 34 3437 ACS 29.240.30 Effective date 1/1/2002 Preface 1 developed and submitted JSC Central Design Bureau "Wiring" INTRODUCED Standardization Technical Committee TC 331 "Low-voltage switchgear and distribution management" 2 ACCEPTED AND PUT INTO ACT Decision on State Standards of Russia from July 11, 2001 № 266-v. 3 first introduced Introduction The purpose of this standard - Update the regulatory framework and requirements for development and production of distribution boards that meet international standards in terms of their possible applications in networks with the types of earthing systems TN -S, TN-C, TN-CS, TT 30331.2/GOST GOST R 50571.2, as well as protection against electric shock and fire safety. In addition, the development of a standard necessitating the extension of the scope as shields against climatic requirements and functional use, based on the use of modern machines and devices. Given that the standard should be used for certification boards, require refinement of test methods (for a more objective evaluation), including tests at temperatures exceeding the nominal operating currents shields and nominal operating currents embedded in these devices. In developing the standard also takes into account the specific requirements set by GOST 22789 and GOST R 51321.3 to complete switchgear. 1 Scope 1.1 This standard applies to the distribution board (hereinafter - the flaps) used in lighting and power installations of industrial, public, administrative and similar buildings for the reception and distribution of electricity at a voltage of 380/220 and 660/380 three-phase AC at 50 - 60 Hz, occasional on and off line group of chains, as well as to protect them in case of overload and short circuits. 1.2 Standards apply to plates, attached to a three-phase networks with the types of earthing systems TN-S, TN-C, TN-CS, TT 30331.2/GOST GOST P 50571.2. Schemes joining flaps with different types of grounding systems are given in Appendix A. 1.3 Types of climate performances according to GOST 15150 and GOST 15543.1 - U3, UHL3, T3, UHL4, T4 (may be other climatic performance of boards or the same performance with a different range of ambient temperatures) . 1.4 Shields may be installed in areas accessible for use by untrained personnel to perform switching operations. 1.5 The standard establishes requirements for the panel, produced for the needs of the country's economy and exports. 1.6 All items of standard requirements are mandatory, except for 5.5 and 6.6.3 relating to the recommended. 2 Normative references in this standard references to the following standards: GOST 2.601-95 Unified system for design documentation. Operational documents GOST 9.032-74 Unified system of corrosion and aging. Paint coatings. Group's technical requirements and designations GOST 9.302-88 Unified system of corrosion and aging. Coverage and non-metallic inorganic. Control methods GOST 9.303-84 Unified system of corrosion and aging. Coverage and non-metallic inorganic. General requirements for the selection of GOST 9.401-91 Unified system of corrosion and aging. Paint coatings. General requirements and methods of accelerated tests for resistance to climatic factors GOST 9.410-88 Unified system of corrosion and aging. Powder coating polymer. Typical processes GOST 12.1.004-91 safety standards system. Fire safety. General requirements of GOST 12.2.007.0-75 safety standards system. Electrotechnical products. General safety requirements of GOST 12.4.026-76 safety standards system. Color signal and safety signs GOST 10434-82 electrical contact connections. Classification. General technical requirements GOST 11516-94 Hand-held tools for working with voltages up to 1000 V ac and 1500 V dc GOST 14192-96 Cargo marking GOST 14254-96 (IEC 529-89) Degrees of protection provided by enclosures (code IP) GOST 15140 - 78 Paints and varnishes. Methods for determining the adhesion of 15150-69 Machines, tools and other industrial products. Designs for different climatic regions. Category, environmental conditions, storage and transportation of the impact of climatic factors of the environment GOST 15151-69 machinery, appliances and other industrial products for the areas with tropical climates. General specifications GOST 15543.1-89 Electrotechnical products. General requirements for resistance to climatic external influencing factors GOST 15963-79 Electrotechnical products for areas with tropical climates. General technical requirements and test methods GOST 16962.1-89 (IEC 68-2-1-74) Electrotechnical products. Test methods for resistance to climatic external influencing factors GOST 16962.2-90 Electrotechnical products. Test method for resistance to mechanical external influencing factors GOST 17412-72 Electrotechnical products for areas with cold climates. Technical requirements, acceptance and test methods GOST 17516.1-90 Electrotechnical products. General requirements for the part of the resistance to mechanical external influencing factors GOST 18620-86 Electrotechnical products. Marking GOST 21130-75 Electrotechnical products. Ground terminal and ground signs. The design and dimensions GOST 21991-89 (IEC 447-74) electrical equipment. Electrical apparatus. The direction of movement of controls GOST 22789-94 (IEC 439-1-85) low-voltage devices. General technical requirements and test methods to GOST 23216-78 Electrotechnical products. Storage, transportation, temporary corrosion protection, packaging, general requirements and test methods to GOST 27483-87 (IEC 695-2-1-80) Tests for flammability. Test methods. Tests of a heated wire to GOST 27924-88 (IEC 695-2-3-84) Tests for flammability. Test methods. Tests for poor contact with the filament elements 30331.2-95 Standard (IEC 364-3-93) / GOST 50571.2-94 (IEC 364-3-93) Electrical installations of buildings. Part 3. The main characteristics of GOST R IEC 536-94 Classification of electrical and electronic equipment in the way of protection against electric shock, GOST R 50030.1-2000 (IEC 60947-1-99), switchgear and control low voltage. Part 1. General requirements and test methods to GOST R 50462-92 (IEC 446-89) Identification of conductors by colors or numerals GOST 51321.3-99 (IEC 60439-3-90), low-voltage devices. Part 3. Additional requirements for distribution and control devices intended for use in areas accessible to unqualified personnel, and test methods 3 Definitions In this standard, the following terms: 3.1 The protective earth conductor (PE): According to GOST R 50571.1 30331.1/GOST. 3.2 neutral conductor (N): According to GOST R 50571.1 30331.1/GOST. 3.3 combined zero-worker and the protective conductor (PEN-conductor): According to GOST R 50571.1 30331.1/GOST. 3.4 branch circuit: Electrical circuit of the flap to the power consumers (power consumers). 3.5 rated current of the device: According to GOST 50030.1. 3.6 Nominal operating current system: According to GOST 50030.1. 3.7 Rated short time withstand short circuit current: According to GOST 22789. 3.8 rated current flap: Rated current induction device built into the panel, established under the terms of the permissible heating (see Appendix B). 3.9 shell: According to GOST 14254. 3.10 Operational Panel: The panel, which are derived controls devices, controls and other elements. 3.11 Body: The main element of design panel, which joined other design elements, including a shell. Note - The envelope may serve as the body. 4 Classification 4.1 Shields should be classified by the following features: - performance relating to the type of installation (attachments, embedded in a niche, 6.2) - the existence of disconnecting the device for input (with the device without the device, Table 1) - availability of electricity metering (with counter, without a meter, 6.2) - the number of protective devices group chains (Table 1) - note the protective devices group circuits (circuit breakers, table 1), - the presence of residual current device - RCD (with RCD without UST table 1) - the staff protection against electric shock (classes I and II according to GOST R IEC 536). 4.2 Signs that match specific performance boards must be specified in the technical specifications for specific types of plates and in the documentation of the manufacturer. 5 Key parameters 5.1 Basic parameters of plates shall be as specified in Table 1 and adjusted to the technical specifications for specific types of shields. Table 1 Basic parameters of flaps Name Parameter Value 1 Rated voltage at the input panel, B 380/220, 660/380 2 Nominal AC frequency, Hz 50, 60 3 Rated current of induction machine or terminal, 40, 63, 100, 125 , 160, 250 4 Rated current flap and the nominal operating current protective devices group circuits, A See 5.3 5 Rated tripping differential current UST on the input panel, mA 30, 100, 300 6 The maximum number of protective devices installed in the shield for the lines of group chains a single-pole terms: * a) circuit breakers and RCD 6, 12, 18, 24, 30 b) threaded fuses 6, 9, 12 July Nominal current circuit breaker and / or RCD group circuit, A 10, 16, 20, 25, 32, 40, 50, 63 8 Nominal tripping differential current RCD group chain, mA 10, 30 September Fuse group circuit, A 6, 10, 16, 25 10 Rated short-time withstand short-circuit current (rms) ** on input boards and bus bars with nominal currents of induction machines at 160 and 250 A, kA, 12 * the maximum number of vehicles in the flaps (see paragraph 6), taking into account the possible installation of the administrative apparatus, alarm systems, and measurements determine their sizes. The actual filling of the appropriate size panel devices - according to the order within the current rating panel (see also 5.2). ** Peak short circuit current - 20 kA. 5.2 In consultation with the consumer, the manufacturer may supply a separate shell plates, designed for the subsequent installation of these protective devices and consumer appliances to 6.6.3. Shell plates must be accompanied by detailed instructions for filling them out, compiled using data from the test panels in similar shells in the volume requirements of this standard. 5.3 The values ??of nominal currents flaps and nominal operating current protective devices group chains should be installed in the technical specifications for specific types of shields at the upper level of the working ambient temperature for the respective climatic performance of 1.3, unless other limits the ambient temperature is not specified in the specifications. 5.4 The values ??of nominal currents flaps and nominal operating current protective devices for the 5.3 should be determined in accordance with Appendix B and driven by operational documents. 5.5 It is also recommended to give effect to these documents currents flaps Climatic versions V3 and protective devices at an ambient temperature of 25 ° C under the conditions allowed the heating element guards for 6.8.1. 5.6 Main dimensions and weight of panels (the largest for each size) should be indicated in the technical specifications for specific types of shields. 5.7 Designation types of shields is recommended to form in accordance with Annex B. 6 Common technical requirements 6.1 General requirements 6.1.1 boards shall comply with the requirements of this standard and technical requirements for specific types of boards and working drawings approved in the prescribed manner. 6.1.2 Shields for export, must also satisfy the requirements of the contract for the supply. 6.2 Design 6.2.1 Shields shall be constructed of materials that are resistant to mechanical, electrical and thermal stresses arising during operation. 6.2.2 Shells flaps class I can be made of metal with a possible combination with other nonflammable and incombustible materials. 6.2.3 Shells boards of Class II shall be made of insulating material, is resistant to ignition when exposed to hot temperatures (850 ± 10) ° C wire, when embedded in a niche boards are not readily walls - (650 ± 10) ° C (see Standard P 51321.3). If the shell plates are used to install on the internal surfaces of live parts, resistance to fire shells at these sites must conform to 6.2.4. 6.2.4 Insulation details shields, which are fixed live parts shall be constructed of materials that are resistant to ignition when exposed to a wire, heated to a temperature (960 ± 15) ° C, in accordance with GOST 51321.3. 6.2.5 Heat shells flaps class II, as well as insulating components flaps of Class I and II should correspond to GOST R 51321.3. 6.2.6 Shells flaps class I should have resistance to corrosion. 6.2.7 For the shields of tropical execution must take into account requirements for materials in accordance with GOST 15151, and for shields climatic performance UHL3 - GOST 17412. 6.2.8 Shells boards should have resistance to mechanical impact energy 0.25 J. Shields 6.2.9 Attachment of execution should be on the envelopes of the elements for mounting on walls and other vertical structures of buildings. 06/02/1910 Shields, set in niches, must have appropriate items for their mounts and frames to close the edges of the niches. 02/06/1911 Detachable shell plates shall not be used to attach them aids and devices. 06/02/1912 Detachable shell plates shall be removed only by using the tool. 06/02/1913 Mechanical strength of threaded fastening means of removable parts of the shells must comply with GOST R 51321.3. 06/02/1914 Shields, in which to protect the lines of group circuits provides circuit breakers and residual current can be made with a tripping device for input or without it. If in the shields provides installation of meters, then their input should be tripping devices. 06/02/1915 in shield without disconnecting the device for input should be a clip to attach the conductors supply chain. 06/02/1916 Shields, in which as the protective devices group lines circuits using fuses, shall be made only with the device for input. 06/02/1917 Shields may have pursuant to the doors or without them. Door panels must be locked with a key. In the flaps, if they do not set the counters are allowed, by agreement between the consumer and the manufacturer, locking doors without a key, if this should exclude their spontaneous opening. The required number of keys to the castle is set in the technical specifications for specific types of shields. 06/02/1918 In the flaps with the counters with the transformer connection should provide a separate compartment with door, lockable, to accommodate the lead vehicle, current transformers, the test box and counter. 02.06.1919 Over the door panel must be located with the operational panel connected on its government apparatus, which in combination with other elements of the panel should exclude access to live parts when the door is open. In shield doors without this function should perform operational panel. 02/06/1920 In the flaps with the counters to prevent unauthorized access to circuits of electricity metering (on the input terminals introductory apparatus to enter into the counter) must be provided by structural members with the possibility of sealing. This element can be operational panel on 2/6/1919. 06.02.1921 By agreement between the consumer and the manufacturer on the doors may provide the elements for their sealing. 02/06/1922 in the door panels with meters must be windows, lockable impact-resistant transparent material, for metering. Windows must withstand the shocks according to 6.2.8. 06/02/1923 flaps should open doors without jamming in the corner, providing convenient access to the device at installation and maintenance of guards, but not less than 95 °. 06/02/1924 in shells boards should be the elements of input conductors and supply chain group. In shells hinged flaps execution of these elements should provide the degree of protection to 6.4.1 in the established position with the introduced agents. 06/02/1925 On the operational panel flap should be performed marking the protective devices group chains serial numbers. Next to the numbers of devices shall be provided for recording of their appointment. Appointment of vehicles permitted to indicate on the label, which can be placed on the inside of the door. The electric circuit panel should be activated in an operational document. 06/02/1926 Marking devices installed in the shell according to the consumer 5.2 shall be made by 02/06/1925 means supplied by the manufacturer shell plates (self-adhesive numbers, forms, tables, etc.). 6.3 Connecting terminals 6.3.1 boards shall be provided for the following types of terminals (hereinafter - the terminals) for connecting external conductors: a) input terminals for connecting the phase conductors supply chain (in the absence of the device on input panel), b) clamps to attach zero main conductors N supply chains and groups, c) terminals for connecting protective earth conductor PE or PEN-conductor supply chain and wire PE group chains. 6.3.2 In the shields of class I to 6.3.1b clips should be insulated from the conductive body (at remove the jumper on 6.3.8) as well as clips on 6.3.1a and clips on 6.3.1v - electrically connected with him. 6.3.3 In the shields of class II clamps on 6.3.1v should be insulated from the conductive parts as well as from the live parts. 6.3.4 to 6.3.1 Terminals shall be suitable for joining both aluminum and copper wires (single-and multi-wire) and have a means of stabilizing the contact pressure in accordance with GOST 10434. 6.3.5 Introductory clip to 6.3.1a should provide for an independent connection of two conductors of the supply chain at the level of more sections, which corresponds to the rated current of the panel, as well as the possibility of acceding to the conductors of the internal circuits (Figure A.3b). 6.3.6 Terminals for the neutral conductor N and the protective earth conductor PE group chains should ensure that the accession of one conductor of the same section, which clips the findings of protective devices of these circuits. 6.3.7 Ranges of sections of aluminum and copper conductors being connected to the introductory terminals and terminals of group chains should be reported in the technical specifications on the boards, in the operating documents. 6.3.8 To connect the terminal supply chain with the corresponding terminals of group chains on 6.3.1b, should be provided in the connecting elements (or bus). The cross section for these items should not be less than the zero-section of the working conductor supply chain. Connecting elements relating to the terminals for connecting protective earth conductor, and connecting elements pertaining to the terminals for connecting neutral conductor, able to supply panels to be interconnected by jumper as shown in figure A.3 of Annex A to ensure the readiness of guards for their accession to network with the type of earthing systems TN-C. Cross section of the bridge must be at least sections of the connecting element. If the shields must be connected to the network with a different type of grounding system, the jumper should be removed, which should be reflected in the operating documents of the manufacturer. 6.3.9 Terminals for 6.3.1b, in for the conductors of group circuits must be marked, a similar labeling of protective devices on 06/02/1925 these chains, and at a location convenient for connection of conductors. 06/03/1910 clamps on 6.3.1b, in addition to the zero workers and protective earth conductor supply chain must be properly labeled N and PE. Said marking may be affixed to the connecting elements (tires on 6.3.8), which are installed clamps. 6.4 Protection against electric shock 6.4.1 Degree of protection according to GOST 14254 from contact with live parts and against ingress of solid foreign bodies with the door closed flaps must be in areas accessible to the touch, not lower IP3X flaps in Class I and IP4X - in flaps class II. Degree of protection afforded by the operational panel, with the door open flap, and in places the input and output outer conductors - no less IP2XC. Degree of protection afforded by the operational panel, flaps without doors - at least IP30. Degree of protection parts boards, embedded in a niche, should be installed in the technical specifications for specific types of shields. Notes 1 The degrees of protection specified in the mounted position of flaps. 2 Higher degrees of protection, including protection against water penetration, agreed between the consumer and the manufacturer. 6.4.2 All accessible conductive parts touch the open flaps of Class I and the constructive elements for the installation of devices that may be under stress, must have a reliable electrical connection with a clip to attach protective earth conductor PE or PEN-conductor supply chain, as well as to grounding clip on 6.4.4. Resistance value of these bonds should be less than 0.1 ohms. 6.4.3 If on the door panel of class I electrical appliances are installed, the door should be further joined to a conductive body flexible copper jumper section in accordance with GOST 22789. 6.4.4 On the envelopes flaps class I in accordance with GOST 12.2.007.0 should be grounding clamp, performed according to GOST 21130, to connect the grounding conductor. In the tropical shields execution time must also comply with GOST 15151. 6.4.5 in shield wall mount grounding clip can be positioned on the outside of his shell, and a shield, installed in niches - on the inner side at a location convenient to attach the grounding conductor. 6.4.6 About the grounding clip to 6.4.4, as well as some clips to attach protective earth conductor supply chain to 6.3.1 should be labeled ground. Its size and method of application - in accordance with GOST 21130. 6.4.7 Controls devices shall be clearly fixed positions "Enabled" - "Disabled" in accordance with existing devices in notation. If after installing the devices in the panel can not be judged on their switching position, on the operational panel of government vehicles should be marked duplicate symbols with their provisions. Direction of movement of controls in the established position in shield apparatus should comply with GOST 21991. 6.4.8 nameplate boards of Class II shall be marked with a sign designating the protection against electric shock by double or reinforced insulation. 6.4.9 On the external side of the door panel should be a warning sign "Caution! Voltage, "according to GOST 12.4.026. 6.5 Coatings 6.5.1 Metal body parts (shell) panels should be provided with protective coatings, powder polymer and / or metallic coating. 6.5.2 Paints and coatings should comply with GOST 9.401, powdered polymer - GOST 9,410. 6.5.3 Paint and powder polymer coating exterior surfaces of shell plates shall conform to Class IV, the internal surfaces - VI class according to GOST 9,032. 6.5.4 Metal coatings must meet the requirements of GOST 9,303. 6.5.5 Specific types of coatings, their thickness, adhesion score for the respective climatic performance boards, as well as their means of control must be specified in the technical specifications for specific types of shields. 6.6 set of equipment 6.6.1 Completing apparatus and instruments should be selected in accordance with the parameters of guards and taking into account their climatic performances. 6.6.2 Apparatus and devices must meet the requirements of the regulations by which they are issued. Note - This requirement may relate to the terminals on 6.3.1, if they are supplied as component parts. 6.6.3 To be completed panels are recommended primarily protective devices, controllers and devices with a single sized module and a unified design - rail for attaching them. 6.6.4 As input devices can be automatic or non-automatic circuit breakers and circuit breaker with integral overcurrent protection. Rated current input devices - according to Table 1. 6.6.5 To protect the lines of group chains should be applied: a) single and (or) three-pole circuit breakers with trip units with combined type B, C and D in accordance with customer's order, and b) threaded fuses, c) circuit breaker with integrated protection overcurrent (tripping according to a transfer) and / or without it, provided that the group chains have overcurrent protection devices. Rated currents of group chains - according to Table 1. 6.6.6 Interrupting capability of protective devices installed at inlets shields, shall not be less than 6 kA for nominal currents up to 63 A and 10 kA - for rated currents up to 125 A. Breaking capacity induction of protective devices at nominal 160, 250 A should not be lower values ??of short circuit currents, given in Table 1. Protective devices group chains should be chosen with breaking capacity of not less than 3 kA. 6.6.7 Switches in 6.6.3 and 6.6.4 should be used with the administration of insulating material. 6.6.8 in shield energy accounting should be applied directly counters the active power and the transformer connection, the maximum current which must satisfy the rated current of the device corresponding to the circuit, unless a lower value is not specified by the user. Accuracy class meters - not less than 2,0. 6.6.9 In the flaps with the counters should be applied opening devices, which allow for the sealing of their governments in the OFF position. 06/06/1910, devices and clamps must be securely fastened to the plate. Fasteners must have a means to prevent loosening. 6.7 6.7.1 Internal circuit for internal circuit boards must be applied copper insulated wires and / or bus. 6.7.2 Conductor should be determined in accordance with Appendix G. 6.7.3 Conductors shall be insulated for the voltage to 660 V AC. 6.7.4 Wires and tire flaps climate performances T3 and T4 are chosen based on the requirements of GOST 15963. 6.7.5 Installation of insulated wires in the shield should be done in such a way that they do not touch uninsulated live parts, sharp edges of the body flap, the radii of curvature must not be less than the established regulations on the wire. Wires should not have twists, solder and other intermediates. 6.7.6 Busbars and branches from them should be placed and secured in the flaps so as to prevent internal short circuit. 6.7.7 Conductors internal circuits must be marked in accordance with the electrical circuit. These designations should be applied to the ends of the conductors. 6.7.8 The combined protective earth and the working conductor PEN, PE protective earth and neutral N conductors working to distinguish colors. Color guides - GOST P 50462. 6.7.9 Apparatus terminals, devices, internal circuits must be placed in the shield so that to them with easy access for maintenance and replacement. This should provide space for the conductors of external circuits and their convenient connection to devices and terminals. 6.8 Electrical characteristics 6.8.1 at rated current flap in excess of 5.3 parts of temperatures above the upper value of the operating temperature for the respective climatic performance should not be more permissible in Table 2. Note - Temperature, heat is the sum of the values ??of the upper operating temperature of the ambient air and the corresponding value of temperature rise caused by the passage of the nominal operating current. 6.8.2 Specific values ??of the upper limits of operating temperature for the respective climatic performance boards and the allowable temperature rise of the value on them subject to the requirements of 6.8.1 shall include heating in the technical specifications for specific types of shields. 6.8.3 Clearances and creepage length of panels shall be not less than 6 mm after the accession of the conductors internal circuits, as well as the supply conductors and group networking. Table 2 Dependence of the temperature rise above ambient air temperature of the permissible heating temperature in degrees Celsius Part Flap permissible temperature rise above ambient air temperature 40 ° C * Temperature, heating a contact connection terminals of the unit, the terminal with internal and external conductors, non-insulated busbars 55 95 2 conductors with PVC insulation 30 70 ** 3 Authorities Manual control of an insulating material 10 50 * At the upper operating value of the ambient temperature other than 40 ° C, the permissible temperature rise may have to be changed within the specified permissible temperature of heating. ** Operating temperature heat conductors with insulation installed in other types of technical conditions on the boards of specific types. Clearances and creepage length set by regulations on embedded devices, should not decrease after their installation and connection of internal and external conductors. 6.8.4 Isolation of the internal circuit boards in the cold under normal test conditions according to GOST 15150 shall withstand for 1 minute test voltage of 2500 V AC, 50 Hz. 6.8.5 Electrical resistance of insulation boards in the cold should not be less than 10 MW. 6.8.6 Shells flaps class II in the cold state under normal test conditions according to GOST 15150 shall withstand for 1 minute test voltage of 3750 VAC, 50 Hz. 6.8.7 If in the construction of flaps provided on the busbar rated currents of 160 or 250 A, then they should be able to withstand short-circuit current according to Table 1 for 0.2 sec. 6.9 Markings 6.9.1 Each panel should have nameplate with a reception marking, located in a readable position. The dimensions of the marks and methods of applying them are installed in the technical specifications for specific types of shields. 6.9.2 In the nameplate should be given the following data: 1) the name of the manufacturer or his trademark; 2) mark of conformity, and 3) the type designation, and 4) rated voltage, 5) Rated current flap, 6) rated frequency, and 7) degree protection; 8) designation of technical terms; 9) Year of manufacture; 10) sign boards for class II; 11) other technical details at the discretion of the manufacturer. 6.9.3 On the plates plates, intended for export must be brought marking the data provided in GOST 18620. 10.6 Basics of flaps, the presentation of operating documents 6.10.1 operational documents, GOST 2,601 for the panels should be considered as Manual, unless otherwise stipulated in the technical specifications for specific types of shields. 6.10.2 The manufacturer shall result in an operational document, the following basic information: 1) the manufacturer's name, 2) information about certification, and 3) designation of the instrument by which plates are issued, and 4) the scope of flaps and conditions of their operation, and 5) the climatic version flaps 6) the type of flap, and 7) rated voltage, 8) Rated frequency; 9) rated currents and induction of protective devices group of chains, 10) Rated current flap and the nominal operating current protective devices group chains; 11) values ??of the current flap and protective devices for 5.5, 12) rated breaking capacity of circuit breakers and circuit breaking capacity fuses, 13) and the nominal maximum current count: 14) rated tripping differential current circuit breaker, 15), the value of short circuit current for the guards to 6.8.7; 16) the degree of protection shields according to GOST 14254; 17) class boards according to GOST R IEC 536; 18) section of the conductor supply chain being connected to the flaps; 19) electrical circuit boards; 20) circuit panel with the accession to the supply networks of 1.2, 21), installation instructions, 22 ) Safety precautions during operation; 23) overall and mounting dimensions as well as the required dimensions of the niches for embedded boards, 24), the mass shield, 25) Transportation and storage conditions. 6.11 The requirements of reliability 6.11.1 Reliability boards and their methods of control are established in the technical specifications for specific types of shields by agreement between manufacturer and user. 6.11.2 Fixed the life guards - 25 years, with the possible replacement of some component parts flap. Limit states shields, conditional on their replacement, must be specified in the manual. 6.12 Completeness Completeness boards should be installed in the technical specifications for specific types of shields. General specifications GOST 2.702-75 Unified system for design documentation. Rules for making electronic circuits with GOST 2.752-71 Unified system for design documentation. Graphical symbols in diagrams. Robot device GOST 2.755-87 Unified system for design documentation. Graphical symbols in electrical circuits. Device switching and contact connections GOST 2.756-76 * Unified system for design documentation. Graphical symbols in diagrams. Is often perceived electromechanical devices GOST 2.757-81 * Unified system for design documentation. Graphical symbols in diagrams. Elements of the switching field for switching systems GOST 2.758-81 Unified system for design documentation. Graphical symbols in diagrams. Signal Technology GOST 2.762-85 * Unified system for design documentation. Graphical symbols in electrical circuits. Frequencies and frequency bands for transmission systems GOST 2.763-85 * Unified system for design documentation. Graphical symbols in electrical circuits. Device with a pulse-code modulation GOST 2.764-86 Unified system for design documentation. Graphical symbols in electrical circuits. Integrated optoelectronic display elements GOST 2.768-90 Unified system for design documentation. Graphical symbols in diagrams.
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