GB/T 11918.2-2025Plugs; fixed or portable socket-outlets and appliance inlets for industrial purposes—Part 2: Dimensional compatibility requirements for pin and contact-tube accessories (English PDF)

Foreword

GB/T 11918 Plugs, socket-outlets and couplers for industrial purposes is planed to be divided into 4 parts.

— Part 1: General requirements;

— Part 2: Dimensional compatibility and interchangeability requirements for pin and contact - tube accessories;

— Part 3.(name to be determined);

— Part 4: Switched socket-outlets and connectors with or without interlock.

This Part is Part 2 of GB/T 11918.

This Part is drafted in accordance with the rules specified in GB/T 1.1-2009.

This Part replaces GB/T 11919-2001 Plugs, socket-outlets and couplers for industrial purposes - Part 2: Dimensional compatibility and interchangeability requirements for pin and contact-tube accessories.

Compared with GB/T 11919-2001, this Part has the following main changes.

- According to IEC 60309-2:2012, the standard name is changed from "Plugs, socket-outlets and couplers for industrial purposes - Part 2: Dimensional interchangeability requirements for pin and contact-tube accessories" to be "Plug, socket-outlets and couplers for industrial purposes - Part 2: Dimensional compatibility and interchangeability requirements for pin and contact-tube accessories";

- The rated operational voltage in Chapter 1 is changed from 690V to 1,000V;

- Chapter 1 defines that the accessories are only intended to be installed and used by trained (electrical) persons or skilled (electrical) technicians;

- Chapter 1 extends the range applicable to electrical accessories with screwless terminals or insulation piercing terminals;

- Chapter 2 adds GB 16895.21 and GB 14048.3;

- Add relevant description of 4.1;

- Add the classification of standard IP codes as specified in GB 4208 to 5.101;

- Delete 6.1.2 of GB/T 11919-2001;

- Modify 7.2;

- Add "the indicating requirements of electrical accessories at the 8h clock position for portable thermostats with the operating voltage not more than 50V" to 7.5;

- Add "the positions of small keys or key slots of special electrical accessories with rated operational voltage not more than 50V" to 8.1;

- Rewrite Chapter 11;

- Amend Table 109 according to the level of protection;

- Change in Chapter 14 the level of protection of electrical accessories at a rated current of 63/60A and at a rated current of 125/100A;

- Modify the Table 104;

- Add "the requirements for relevant standard leaflets" in 16.101;

- Add the diagram of composition planes in standard leaflet 2-I;

- Add the diagram of composition planes in standard leaflet 2-III;

- Modify the diagram of standard leaflet 2-III a;

- Modify the diagram of standard leaflet 2-IV a;

- Add the diagram of standard leaflet 2-VIII a;

- Add the diagram of standard leaflet 2-IX a;

- Add the list of chapters needing repeated tests in Annex A.

This Part uses re-drafting method to modify and adopt IEC 60309-2:2012 "Plug, socket-outlets and couplers for industrial purposes - Part 1: Dimensional compatibility and interchangeability requirements for pin and contact-tube accessories".

Technical differences between this Part and IEC 60309-2:2012, and the causes, are as follows.

- In respect of normative references, this Part makes adjustments of technical difference to adapt to the technical requirements of China. Such adjustments are collectively reflected in Chapter 2 "Normative References". The detailed adjustments are as follows.

- Replace IEC 60617-2:1996 with 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);

- Replace IEC 60364-4-41 with 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) this Part makes the editorial changes as follows.

- In Chapter 1, supplement "this Part of GB/T 11918 defines technical requirements such as the dimensional interchangeability requirements for plugs, socket-outlets and couplers for industrial purposes";

- Exchange the orders of Chapter 3 and Chapter 2 of IEC 60309-2:2012, that is, make the "Normative References" as Chapter 2 and the "Terms and Definitions" as Chapter 3;

- Move the description of the standard structure in the Introduction of IEC 60309-2 to the Foreword of this Part; and delete the Introduction;

- Make adjustment to the "list of chapters needing repeated tests" in Annex B according to the national standard GB/T 11919- 2001 that corresponds to IEC 60309-2.

This Part was proposed by China Electrical Equipment Industrial Association.

This Part shall be under the jurisdiction of National Electrical Accessory Standardization Technical Committee (SAC/TC 67).

Main drafters of this Part. China National Electric Apparatus Research Institute Co., Ltd., Shantou Dongya Electrical Appliances Factory, Hangzhou HONYAR Electrical Co., Ltd., Yuehua Holding Group Co., Ltd., MIG Technology Inc., Beijing Top Electric Co., Ltd., Bull Group Co., Ltd., Zhongshan Weipu Electrical Appliance Co., Ltd., Chengdu Reliance Electric Co., Ltd., Ningbo Well Electrical Co., Ltd., Zhejiang Hengtai Electrical Co., Ltd., Nanjing Mennekes Electric Appliances Co., Ltd., Feidiao Electrical Appliances (Group) Co., Ltd., Shanghai Electric Tool Research Institute, Vkan Certification & Testing Co., Ltd., Clipsal Manufacturing (HuiZhou) limited (Shenzhen branch), Guangzhou Panyu Tianhong Industrial Development Co., Ltd., Nexus Electrical (Jiaxing) Ltd., and Nanjing Kangni Technology Industrial Co., Ltd.

Main drafters of this Part. Ding Hanhui, Cai Jun, Jin Feng, Wang Chaosheng, Huang Jun, Zhu Songtao, Ruan Liping, Chen Zanhui, Wang Huayi, Li Hongwen, Luo Deyuan, Ju Minghua, Zheng Wei, Zhang Weichang, Yuan Qu, Gong Zhilei, Li Dajian, Zhang Lirong, Ding Li, Li Lixin, Luo Shiming, and Cai Yingfeng.

The previous versions replaced by this Part are as follows.

- GB/T 11919-1989, GB/T 11919-2001.

1 Scope

This clause in GB/T 11918.1-2014 is replaced as follows.

This Part of GB/T 11918 defines technical requirements of dimensional interchangeability of plugs, socket-outlets and couplers for industrial purposes with bolts and bushes.

This Part applies to plugs and socket-outlets, cable couplers and appliance couplers with a rated operating voltage not exceeding 1000 V, 500 Hz and a rated current not exceeding

125 A, primarily intended for industrial use, either indoors or outdoors.

2 Normative references

The articles contained in the following documents have become part of this document when they are quoted herein. For the dated documents so quoted, all the modifications (including all corrections) or revisions made thereafter shall be applicable to this document.

This clause of GB/T 11918.1-2014 is applicable by revising as follows.

GB/T 11918.1-2014 Plugs, socket-outlets and couplers for industrial purposes -Part 1: General requirements (IEC 60309-1:2012, MOD) Add.

GB/T 4728.2-2005 Graphical symbols for electrical diagrams - Part 2: Symbol elements, qualifying symbols and other symbols having general application (GB 14048.3-2008, IEC 60947-3:2005, IDT) GB 14048.3 Low-voltage switchgear and controlgear - Part 3: Switches, disconnectors, switch-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 following terms and definitions given in GB/T 11918.1-2014 shall apply.

4 General

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.

5 Standard ratings

The standard IP ratings according to GB 4208-2008 are.

- IP44,

- IP67,

- IP66/IP67.

6 Classification

This clause of GB/T 11918.1-2014 is applicable.

7 Marking

The symbol indicating the position of the earthing contact or of the minor key or keyway shall be placed before or above the figure for the rated operating voltage, and separated from it by a line.

8 Dimensions

Accessories shall comply with the relevant standard sheets as specified below.

9 Protection against electric shock

Conformity with the relevant standard sheets ensures compliance with the requirement as far as inaccessibility of contacts during insertion of a plug or connector into the complementary accessories is concerned.