Detail of GB/T 11918.2-2014

Introduction of GB/T 11918.2-2014

1 Scope This clause of GB/T 11918.1-2014 is applicable except the following replacement: This part of GB/T 11918 specifies dimensional interchangeability requirements and other specifications for pin and contact-tube accessories of plugs, socket-outlets and couplers for industrial purposes This part applies to plugs and socket-outlets, cable couplers and appliance couplers with a rated operating voltage not exceeding 1 000 V, 500 Hz and a rated current not exceeding 125 A, primarily intended for industrial use, either indoors or outdoors. Note: All references for accessories with a rated current of more than 125 A in GB/T 11918 are not applicable to this part. These accessories are intended to be installed and used only by trained [electrical] personnel (GB/T 2900.73-2008, Definition 195-04-02) or skilled [electrical] technicians (GB/T 2900.73-2008, Definition 195-04-01). This part applies to plugs and socket-outlets, cable couplers and appliance couplers with pins and contact tubes of standardized configurations. This part applies to plugs and socket-outlets, cable couplers and appliance couplers, hereinafter referred to as accessories, for use when the ambient temperature is normally within the range –25℃ to 40℃. The use of these accessories on building sites and for agricultural, commercial and domestic applications is not precluded. This part applies to accessories with screwless type terminals or insulation piercing terminals, with a rated current up to and including 32 A for series I and 30 A for series II. Socket-outlets or appliance inlets incorporated in or fixed to electrical equipment are within the scope of this standard. This standard also applies to accessories intended to be used in extra-low voltage installations. Note: This standard does not apply to accessories primarily intended for domestic and similar general purposes. In locations where special conditions prevail, for example on board ship or where explosions are liable to occur, additional requirements may be necessary. 2 Normative References The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. This clause of GB/T 11918.1-2014 Plugs, Socket-outlet and Couplers for Industrial Purposes — Part 1: General Requirements is applicable except the following modifications: Addition: GB/T 4728.2-2005 Graphical Symbols for Electrical Diagrams — Part 2: Symbol Elements, Qualifying Symbols and Other Symbols Having General Application (IEC 60617, IDT) GB 14048.3 Low-voltage Switchgear and Controlgear — Part 3: Switches, Disconnectors, Swithch-disconnectors and Fuse-combination Units (GB 14048.3-2008, IEC 60947-3:2005, IDT) GB 16895.21 Low-voltage Electrical Installations — Part 4-41: Protection for Safety — Protection Against Electric Shock (GB 16895.21-2011, IEC 60364-4-41:2005, IDT) 3 Terms and Definitions For the purpose of this document, the terms and definitions given in GB/T 11918.1-2014 and the following apply. 3.101 phase inverter a plug or an appliance inlet with operating means to interchange the position of two phase pins without disconnecting them from the conductors 4 General This clause of GB/T 11918.1-2014 is applicable except the following modification: 4.1 The last paragraph of this subclause of GB/T 11918.1-2014 is not applicable. Addition: 4.101 If gauges are used, they shall be of hardened steel, all corners shall be slightly rounded-off with a maximum radius of 0.1 mm, and the surface finish for all measurement surfaces shall be min., if not otherwise specified. In this part: 2P + covers both 2P + and 1P + N + and 3P + covers both 3P + and 2P + N + unless specifically excluded (see Table 104). 5 Standard Ratings This clause of GB/T 11918.1-2014 is applicable except modifications as follows: 5.2 Replacement: Standard rated currents are given in Table 101. ... ... ... ... 3 Terms and Definitions For the purpose of this document, the terms and definitions given in GB/T 11918.1-2014 and the following apply. 3.101 phase inverter a plug or an appliance inlet with operating means to interchange the position of two phase pins without disconnecting them from the conductors 4 General This clause of GB/T 11918.1-2014 is applicable except the following modification: 4.1 The last paragraph of this subclause of GB/T 11918.1-2014 is not applicable. Addition:

Contents of GB/T 11918.2-2014

Foreword II 1 Scope 2 Normative References 3 Terms and Definitions 4 General 5 Standard Ratings 6 Classification 7 Marking 8 Dimensions 9 Protection against Electric Shock 10 Provision for Earthing 11 Terminals and Terminations 12 Interlocks and Retaining Devices 13 Resistance to Ageing of Rubber and Thermoplastic Material 14 General Construction 15 Construction of Socket-outlets 16 Construction of Plugs and Connectors 17 Construction of Appliance Inlets 18 Degrees of Protection 19 Insulation Resistance and Dielectric Strength 20 Breaking Capacity 21 Normal Operation 22 Temperature Rise 23 Flexible Cables and Their Connection 24 Mechanical Strength 25 Screws, Current-carrying Parts and Connections 26 Creepage Distances, Clearances and Distances through Sealing Compound 27 Resistance to Heat, Fire and Tracking 28 Corrosion and Resistance to Rusting 29 Conditional Short-circuit Current Withstand Test 30 Electromagnetic Compatibility STANDARD SHEETS Figures Annex A (Normative) List of the Clause Numbers that Require Re-testing