GB/T 11918.1-2025 English PDFGB/T 11918.1: Historical versions
Basic dataStandard ID: GB/T 11918.1-2025 (GB/T11918.1-2025)Description (Translated English): (Plugs, fixed or portable socket-outlets and appliance inlets for industrial purposes - Part 1: General requirements) Sector / Industry: National Standard (Recommended) Date of Implementation: 2026-05-01 Older Standard (superseded by this standard): GB/T 11918.1-2014 Issuing agency(ies): State Administration for Market Regulation; Standardization Administration of China GB/T 11918.1-2014: Plugs, socket-outlets and couplers for industrial purposes -- Part 1: General requirements---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order. Plugs, socket-outlets and couplers for industrial purposes - Part 1. General requirements ICS 29.120.30 K30 National Standards of People's Republic of China Replace GB/T 11918-2001 Industrial plugs and sockets and couplers Part 1. General requirements Plugs, socket-outletandcouplersforindustrialpurposes- Part 1. Generalrequirements (IEC 60309-1.2012, MOD) Published on.2014-06-24 2015-01-22 implementation General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China China National Standardization Administration issued ContentForeword V 1 Scope 1 2 Normative references 1 3 Terms and Definitions 2 4 General 5 5 standard rating 6 6 Category 6 7 logo 7 8 size 9 9 protection against electric shock 10 10 Grounding measures 10 11 terminals and ends 11 12 interlocking device and holding device 20 13 Weathering resistance of rubber and thermoplastic materials 20 14 General structure 21 15 socket structure 21 16 Plug and connector construction 22 17 Structure of the appliance input socket 23 18 degree of protection 23 19 Insulation resistance and electrical strength 24 20 breaking capacity 25 21 Normal operation 26 22 temperature rise 27 23 flexible cables and their connections 29 24 Mechanical strength 33 25 screws, current-carrying parts and connections 36 26 Creepage distance, clearance and piercing sealant distance 37 27 Heat, flame and tracking resistance 39 28 Corrosion and rust proof 40 29 Limit short-circuit current withstand test 40 30 Electromagnetic Compatibility 41 Appendix A (Normative) Guidance and instructions for test equipment 55 Appendix B (informative) List of chapters requiring repeated testing 61 Reference 62 Figure 1 Schematic diagram of the use of electrical accessories 42 Figure 2 Standard test finger 43 Figure 3 Blank 43 Figure 4 Blank 43 Figure 5 Breaking capacity and normal operation test circuit diagram 44 Figure 6 Cable fixing component test device 45 Figure 7 Impact test device (see Appendix A) 45 Figure 8 Configuration of the mechanical strength test of the plug and connector 46 Figure 9 bending test device 46 Figure 10 Blank 47 Figure 11 Blank 47 Figure 12 Blank 47 Figure 13 Gauge for interposability of unprocessed round conductors for inspection of the maximum specified cross-sectional area 47 Figure 14 Terminal Example 48 Figure 15 Equipment test configuration 50 Figure 16 Test circuit for verifying the short-circuit current withstand capability of a single-phase ac or dc of a two-pole device. Figure 51 Figure 17 Test circuit 52 for verifying the short-circuit current withstand capability of a three-pole device Figure 18 Test circuit 53 for verifying the short-circuit current withstand capability of a quadrupole device Figure 19 Schematic diagram of the bending test 54 Figure A.1 Impact Test Set - Pendulum Assembly 56 Figure A.2 Impact test device --- pendulum mass (quantity. 4) 57 Figure A.3 Impact test device -- pendulum shaft end 58 Figure A.4 Impact test device --- pendulum anvil 58 Figure A.5 Impact test device --- pendulum shaft 59 Figure A.6 Impact test device -- pendulum pivot 59 Figure A.7 Impact test device rear plate and mounting plate 60 Table 1 rated current preferred value 6 Table 2 Shell color corresponding to the rated working voltage 9 Table 3 Connectable conductor size 12 Table 4 Force of bending test 15 Table 5 Bending value of copper conductor under mechanical load test 17 Table 6 tensile test value 18 Table 7 Test current value of voltage drop test 19 Table 8 Test voltage 25 Table 9 Breaking capacity 26 Table 10 Normal operation 27 Table 11 Test current and conductor cross-sectional area of the temperature rise test 28 Table 12 Type and nominal cross-sectional area of the flexible cable 29 Table 13 Cable outer diameter approximation 31 Table 14 Tensile and Torque Values Subjected to the Cable 32 Table 15 Impact Energy 34 Table 16 Force applied by heavy objects 35 Table 17 Force applied to the wrench 35 Table 18 Torque value for inspection 36 Table 19 Creepage distance, clearance and punch-through sealant distance 38 Table A.1 Impact test release angle 57ForewordGB/T 11918 "Industrial plugs and sockets and couplers" plan is divided into four parts. --- Part 1. General requirements; --- Part 2. Dimensional compatibility and interchangeability requirements for electrical accessories with latches and sockets; --- Part 3. (name to be determined); --- Part 4. Sockets and connectors with or without interlocks. This part is the first part of GB/T 11918. This part is drafted in accordance with the rules given in GB/T 1.1-2009. This part replaces GB/T 11918-2001 "Industrial plugs and sockets and couplers - Part 1. General requirements". Compared with GB/T 11918-2001, the main changes in this section are as follows. --- The rated working voltage in Chapter 1 was changed from 690V to 1000V, and the rated current was changed from 250A to 800A; --- Chapter 1 clarifies that these attachments are intended only to be installed by trained or skilled personnel; --- Chapter 1 supplements the scope of electrical accessories for use with screwless terminals or insulated piercing terminals; --- Chapter 3 added 3.18.7 screwless terminal and 3.18.8 insulation piercing terminal definition; --- According to the definition given in GB/T 11918.4-2014 3.103.3, modified the definition of 3.8 integral switchgear; ---4.1 clarifies that the minimum degree of protection should be IP23; and the plugs, sockets, appliance input sockets and connectors used together Combination of requirements; ---4.2.1 relevant provisions for components or components; ---4.2.4 Added the requirement to perform a 11.1.4 test on a new set of additional samples; ---5.1 increase 750V and 1000V; --- 5.2 series I increase 315A, 400A, 630A, 800A, series II increase 300A, 350A, 500A, 600A, and increase Added a comment; --- Table 1 added "Recommended use of Series I in China."; ---6.1.2 modified to be classified according to the degree of protection according to GB 4208; --- Chapter 6 added 6.1.6, 6.1.7, 6.1.8; ---7.1 adds the requirement to identify the number of this standard; and stipulates. the number of this standard can be marked on the product or packaging unit; ---7.6 gives the ingredients of the recommended gasoline; Table 2 of ---7.7 gives the color of the shell corresponding to the rated working voltage of 500V~1000V; --- Chapter 7 added 7.8, 7.9, 7.10; ---8.1 added the comment "GB/T 11918.2 gives some standard loose-leaf."; ---8.2 adds conditions that allow the connection of a single-phase or three-phase plug into a three-phase neutral socket; --- Table 3 adds 315A, 400A, 630A, 800A connectable conductor size; --- Chapter 11 has been re-written, adding the requirements for threaded terminals, screwless terminals, insulated piercing terminals (IPT) and related test; --- Chapter 12 clarifies that the interlocking requirements are checked according to GB/T 11918.4; ---15.8 is modified to the requirements of the socket with rated working voltage higher than 50Va.c. or 120Vd.c. ---16.9 is modified to the requirements of plugs and connectors with rated operating voltages exceeding 50Va.c. or 120Vd.c. ---17.3 Amend to the requirements of the appliance input socket with rated working voltage higher than 50Va.c. or 120Vd.c. ---18.2 increases the rule when the first feature number is 3 or 4 and the degree of protection is less than or equal to IPX4; ---18.3 and 18.4 contents are deleted; --19.3 Three notes to increase the electrical strength test; --- Table 12 according to IEC 60245-4.2011 on the cable model has been increased or decreased; --- Chapter 20 deletes the description of the metal brackets for electrical accessories with rated voltages of 380V~415V; --- Table 9 added the breaking capacity of 315A, 400A, 630A, 800A; --- Chapter 21 adds dry cleaning and maintenance operations after every 500 strokes, and specifies the plugs for electrical accessories during the test or The insert sleeve must not be calibrated, lubricated or otherwise adjusted; --- Table 10 added the number of normal operation cycles of 315A, 400A, 630A, 800A; --- Table 11 added the test current of the temperature rise test of 315A, 400A, 630A, 800A and the cross-sectional area of the conductor; --- Chapter 22 increases the duration of the temperature rise test with a rated current exceeding 250A; --- Table 12 adds the nominal cross-sectional area corresponding to 315A, 400A, 630A, 800A; --- Table 13 adds the approximate cable outer diameter corresponding to 315A, 400A, 630A, 800A; --- Table 14 adds the tensile and torque values experienced by the cables corresponding to 315A, 400A, 630A, and 800A; --- Table 15 added the impact energy corresponding to 315A, 400A, 630A, 800A; --- Table 16 deletes the column "greater than 30A"; --- Table 19 added "500V to 690V", "690V to 1000V" creepage distance, clearance and punch through Sealant distance ---27.3 Direct reference to GB/T 5169.21, simplifying the description; ---27.5 Direct reference to GB/T 4207, simplifying the description; --- Figure 13 added conductor cross-sectional area 185mm2, 240mm2, 300mm2, 400mm2, 500mm2, 630mm2 phase The gauge of the insertability of an untreated round conductor to check the maximum specified cross-sectional area; --- Added Appendix B. This part uses the redrafting method to modify the use of IEC 60309-1.2012 "Industrial plugs and sockets and couplers Part 1. General begging". The technical differences between this part and IEC 60309-1.2012 and their reasons are as follows. ---About the normative reference documents, this part has made technical adjustments to adapt to China's technical conditions, adjustments The situation is reflected in Chapter 2, “Regulatory Citations”, and the specific adjustments are as follows. ● Replace the IEC 60228.1978 with the conductor of the GB/T 3956-2008 cable (IEC 60228.2004, IDT); ● Replace the IEC 60529.1989 with the GB 4208-2008 enclosure protection class (IP code) (IEC 60529.2001, IDT); ● Use GB/T 5023 (all parts) PVC insulated cables with rated voltages of 450/750V and below [IEC 60227 (all) Part)] instead of IEC 60227 (all parts); ● GB/T 5169.11-2006 Electrical and electronic products - Fire hazard testing - Part 11. Glowing wire/hot wire basic test The glow wire flammability test method (IEC 60695-2-11.2000, IDT) of the finished product replaces IEC 60695-2-1.1994; ● GB/T 5169.21 Electrical and electronic products - Fire hazard testing - Part 21. Abnormal thermal ball pressure test (GB/T 5169.21-2006, IEC 60695-10-2.2003, IDT) instead of IEC 60695-10-2; ● Use GB/T 9797 metal cover nickel-chromium and copper-nickel-chromium plating layer (GB/T 9797-2005, ISO 1456. 2003, IDT) replaces ISO 1456; ● Use zinc plating on GB/T 9799 metal-clad steel (GB/T 9799-1997, eqvISO 2081.1986) For ISO 2081; ● GB/T 11918.4 Industrial plugs and couplers - Part 4. Sockets and connectors with or without interlocks (GB/T 11918.4-2014, IEC 60309-4.2012, MOD) instead of IEC 60309-4; ● Technical specification and test method for GB/T 12599 metal-clad tin plating layer (GB/T 12599-2002, ISO 2093.1986, MOD) instead of ISO 2093; ● Replace the low voltage fuses of GB 13539.1-2008 Part 1. Basic requirements (IEC 60269-1.2006, IDT) IEC 60269-1.1986; ● GB/T 13539.2-2008 Low-voltage fuses - Part 2. Supplementary requirements for fuses used by For industrial fuses) Standardized fuse system examples A to I (IEC 60269-2.2006, IDT) instead of IEC 60269- 2.1986; ● GB/T 16935.1-2008 Insulation of equipment in low-voltage systems - Part 1. Principles, requirements and tests (IEC 60664-1.2007, IDT) replaces IEC 60664-1.1992; ● Replace the IEC 60320 with GB 17465 (all parts) household and similar appliance couplers [IEC 60320 (all parts)] (all parts). --- The identification of this standard number. With reference to other standard requirements and related regulations, 7.1 has added requirements for identifying this standard number. --- According to IEC 60245-4.2011, the corresponding wire type is added or subtracted in Table 12 and Table 13. The documents of our country that have a consistent correspondence with the international documents referenced in this part are as follows. --- GB/T 5013.4-2008 Rubber insulated cables of rated voltages up to and including 450 750V. Part 4. cords and flexible cables (IEC 60245-4.2004, IDT). This section has made the following editorial changes. --- Added in Chapter 1 "This part of GB/T 11918 specifies the structure and mechanical properties of industrial plugs and sockets and couplers. Technical requirements such as energy and electrical performance. "; ---Transfer the order of Chapters 3 and 2 of IEC 60309-1.2012, that is, the "normative reference document" is Chapter 2, "Terminology and Definition" is Chapter 3; --- Move the description of the standard structure in the introduction to IEC 60309-1.2012 to the preface of this section. And delete the IEC introduction; --- Modified the guidance of "terms and definitions"; --- To ensure the consistency defined by GB/T 11918, 3.8 integral switchgear according to 3.103.3 of GB/T 11918.4-2014 Added; --- For ease of reference, 8.1 added a note. "GB/T 11918.2 gives some standard loose-leaf pages."; --- Change IEC 60309-1.2012 Table 4-1 to Table 4, Table 4-2 to Table 5, Table 4-3 to Table 6, Table 4-4 to Table 7, after The serial number of the surface is postponed; --- Refer to other electrical accessories standards for electrical strength test requirements, 19.3 supplemented Note 2, Note 3, Note 4; --- For Appendix B "List of chapters requiring repeated tests", according to the IEC 60309-1 version corresponding to GB/T 11918-2001 Condition has been adjusted; --- Added references. This part was proposed by China Electrical Equipment Industry Association. This part is under the jurisdiction of the National Electrical Equipment Standardization Technical Committee (SAC/TC67). This section was drafted by. China Electric Apparatus Research Institute Co., Ltd., Hangzhou Hongyan Electric Co., Ltd., Shantou East Asia Electric Appliance Factory, Guangdong Mingjia Technology Co., Ltd., Yuehua Holding Group Co., Ltd., Zhongshan Weipu Electric Co., Ltd., Beijing Breakthrough Electric Co., Ltd. Du Ruilian Electric Co., Ltd., Bull Group Co., Ltd., Ningbo Weier Electric Co., Ltd., Zhejiang Hengtai Electric Co., Ltd., Nanjing Mann Nikes Electric Co., Ltd., Shanghai Electric Tools Research Institute, Weikai Testing Technology Co., Ltd., Qisheng Industrial (Huizhou) Co., Ltd. Shenzhen Branch Company, Feidiao Electric Group Co., Ltd., Guangzhou Panyu Tianhong Industrial Development Co., Ltd., Nice Electric (Jiaxing) Co., Ltd., Nanjing Connie Technology Industrial Co., Ltd. The main drafters of this section. Cai Jun, Ding Hanhui, Jin Feng, Huang Jun, Wang Chaosheng, Chen Zanhui, Zhu Songtao, Wang Huayi, Yan Liping, Li Hongwen, Luo Deyuan, Yan Minghua, Zhang Yuchang, Yuan Qu, Gong Zhilei, Zheng Wei, Li Dajian, Jiang Jiulong, Ding Li, Li Lixin, Luo Shiming, Cai Yingfeng, Zhang Lirong. The previous versions of the standards replaced by this section are. ---GB/T 11918-1989, GB/T 11918-2001. Industrial plugs and sockets and couplers Part 1. General requirements1 ScopeThis part of GB/T 11918 specifies the technical requirements for the structure, mechanical properties and electrical performance of industrial plugs and sockets and couplers. This section applies to the main working industrial, indoor and outdoor use rated working voltage does not exceed 1000Vd.c. or ac and 500Hza.c., plugs and sockets, cable couplers and appliance couplers with rated currents up to 800A. These attachments are only intended to be trained by [electrical] personnel (GB/T 2900.73-2008, definition 195-04-02) or skilled [electrical] The technician (GB/T 2900.73-2008, definition 195-04-01) is installed and used. The preferred ratings listed do not exclude other ratings. This section applies to plugs and sockets, cable couplers and appliances used when the ambient temperature is usually between -25 ° C and 40 ° C. Coupler (hereinafter referred to as electrical accessory). These electrical accessories are intended to be connected only to copper or copper alloy cables. This section applies to series I with rated current not higher than 32A, series II rated current not higher than 30A, with unthreaded terminals or Electrical accessories for insulated piercing terminals. These electrical accessories are not excluded for use on construction sites or for agricultural, commercial or domestic use. Sockets or appliance input sockets that are installed in electrical equipment or that are fixed to electrical equipment are within the scope of this section. This section also applies For electrical accessories intended for use in extra low voltage devices. This section does not apply to electrical accessories used by major writers and similar general purposes. Additional requirements may be required in special locations, such as on board ships or in locations subject to explosion.2 Normative referencesThe following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article. Pieces. For undated references, the latest edition (including all amendments) applies to this document. GB/T 3956-2008 Conductor for cables (IEC 60228.2004, IDT) GB/T 4207-2012 Determination of the tracking resistance index of solid insulating materials and the method of measuring the electrical tracking index (IEC 60112.2009, IDT) GB 4208-2008 Shell protection class (IP code) (IEC 60529.2001, IDT) GB/T 5023 (all parts) PVC insulated cables with rated voltages of 450/750V and below [IEC 60227 (all parts)] GB/T 5169.11-2006 Electrical and electronic products - Fire hazard testing - Part 11. Glowing wire/hot wire basic test method Glowing flammability test method for products (IEC 60695-2-11.2000, IDT) GB/T 5169.21 Fire hazard testing for electric and electronic products - Part 21. Normal heat ball test (GB/T 5169.21- 2006, IEC 60695-10-2.2003, IDT) GB/T 9797 metal-clad nickel-chromium and copper-nickel-chromium plating (GB/T 9797-2005, ISO 1456.2003, IDT) GB/T 9799 metal and other inorganic coatings on steel treated zinc plating (GB/T 9799-2011, ISO 2081.2008, IDT) GB/T 11918.4 Plugs and couplers for industrial use - Part 4. Sockets and connectors with or without interlocking switch (GB/T 11918.4-2014, IEC 60309-4.2012, MOD) GB/T 12599 Metallic coating tin plating layer technical specification and test method (GB/T 12599-2002, ISO 2093. 1986, MOD) Low voltage fuses - Part 1. Basic requirements (IEC 60269-1.2006, IDT) GB/T 13539.2-2008 Low-voltage fuses - Part 2. Supplementary requirements for fuses used by Industrial fuses) Standardized fuse system examples A to I (IEC 60269-2.2006, IDT) GB/T 16935.1-2008 Insulation of equipment in low-voltage systems - Part 1. Principles, requirements and tests (IEC 60664-1. 2007, IDT) GB 17465 (all parts) Couplers for household and similar appliances [IEC 60320 (all parts)] Household and similar general purpose plugs and sockets (Plugsandsocket-outletsfor) standardized by IEC 60083 IEC member states DomesticandsimilargeneralusestandardizedinmembercountriesofIEC ) IEC 60245-4.2011 Rubber insulated cables of rated voltages up to and including 450 750 s....... |