T/TBPS 4119-2019 Extension cord safety socket technical specifications and testing methods

Scope

Scope: This standard specifies the terms and definitions, technical requirements, test methods, inspection rules, usage instructions, and marking, packaging, transportation, and storage for safety sockets of extension cords. Main technical content: Safety sockets for extension cords are a new type of socket that combines two national standards into one. With the development of society and the diversification of public demand for products, safety sockets for extension cords allow the public to easily replace the length of electrical wires and the number of socket plugs according to their needs. Power cords and extension cords are integrated into a single device that provides power distribution and management interfaces. The main technical content includes: 1. It includes plugs and sockets, with slots opened at both ends of the socket, and standard three-pole pins installed in the slots; 2. The plug is designed with corresponding plug holes corresponding to the position of the standard three-pole pins; 3. The socket slots are equipped with interlocking devices. When the plug is inserted into one of the sockets, the interlocking device closes the other socket.

Development Information

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