GB/T 42710.1-2023Direct current (DC) plugs and socket-outlets for household and similar purposes - Part 1: General requirements (English PDF)

1 Scope

This document specifies the classification, marking, protection against electric shock, structure, mechanical properties, and electrical properties of DC plugs and sockets for household and similar purposes.

and other technical requirements.

This document applies to household and similar purposes, indoor or outdoor use, only for direct current, rated voltage does not exceed 400V, rated

Plugs and fixed or portable socket-outlets with a current not exceeding 32A.

For DC sockets equipped with screwless terminals, the rated current is limited to a maximum of 16A DC.

Plugs and socket-outlets within the scope of this document are suitable for circuits in which the following protection has been implemented.

---Basic protection;

---Overcurrent protection (based on the maximum current of each socket not exceeding 16A);

---Fault protection (indirect contact protection); and

---Extra protection.

DC plugs and sockets that comply with the requirements of this document are suitable for use where the ambient temperature usually does not exceed 40°C, but during an average 24h

The temperature does not exceed 35°C, and the lower limit of ambient air temperature is -5°C.

For sockets that comply with the requirements of this document and are built-in or installed in equipment, the ambient temperature around the installation location must not exceed 35°C.

In places with special conditions, such as on ships, vehicles and hazardous places where explosions may occur, special structures may be required.

2 Normative reference documents

The contents of the following documents constitute essential provisions of this document through normative references in the text. Among them, the dated quotations

For undated referenced documents, only the version corresponding to that date applies to this document; for undated referenced documents, the latest version (including all amendments) applies to this document.

GB/T 2099.1-2021 Plugs and sockets for household and similar purposes Part 1.General requirements

GB/T 2099.7-2015 Plugs and sockets for household and similar purposes Part 2-7.Special requirements for extension cord sockets

GB/T 2423.4 Environmental testing of electrical and electronic products Part 2.Test method Test Db Alternating damp heat (12h 12h cycle ring)

GB/T 2423.7 Environmental testing Part 2.Test method Test Ec. Impact caused by rough operation (mainly used for equipment type sample)

GB/T 2423.55 Environmental testing of electrical and electronic products Part 2.Test methods Test Eh. Hammer test

GB/T 2900.70-2008 Electrical terminology and electrical accessories

GB/T 2900.71-2008 Electrical terminology electrical devices

GB/T 2900.73-2008 Electrical Terminology Grounding and Electric Shock Protection

GB/T 4207 Method for determination of tracking resistance index and relative tracking index of solid insulating materials

GB/T 4208 Shell protection level (IP code)

GB/T 5013 (all parts) Rubber insulated cables with rated voltage 450/750V and below

GB/T 5023 (all parts) PVC insulated cables with rated voltage 450/750V and below

GB/T 5169.10 Fire hazard test for electrical and electronic products Part 10.Glow wire/Hot wire basic test method Glow wire assembly settings and general test methods […]