Plug, socket-outlets and couplers for industrial purposes―Part 2:Dimensional compatibility and interchangeability requirements for pin and contact-tube accessories
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.
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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:
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
