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The new national standard for USB interface sockets (GB/T 2099.31-2025) will be officially implemented in November 2025

Time：

2025-11-05

GB/T 2099.31-2025 "plugs and sockets for household and similar purposes - Part 31: Special requirements for sockets with USB power supply", officially implemented on November 1, 2025.

GB/T 2099.31-2025 "plugs and sockets for household and similar purposes - Part 31: Special requirements for sockets with USB power supply" was approved for publication on April 25, 2025 and officially implemented on November 1, 2025.

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New regulations for USB power sockets

1. Applicable products

Suitable for indoor or outdoor use, household and similar purposes, only for AC power, rated voltage above 50V but not exceeding 440V, rated current not exceeding 32A, with or without grounding contacts, fixed or mobile sockets with USB power supply.

2. Standard situation

GB/T 2099.31-2025 "plugs and sockets for household and similar purposes - Part 31: Special requirements for sockets with USB power supply" has been added as a new content to the GB/T 2099 standard, and a special technical specification has been developed for integrated USB interface sockets.

The standard provides safety and EMC requirements for sockets equipped with USB power. Excluding USB technical parameters, performance, and size requirements: The relevant sections of IEC62680 provide explanations for it.

The standard refers to the international standard IEC 60884-3-1:2021, with a focus on localizing core indicators such as electromagnetic compatibility, material testing, and fuses. By replacing the ISO/IEC standards referenced in the original international provisions with domestic equivalent documents, the technical requirements are ensured to be deeply aligned with the actual situation of the domestic industry.

The national standard GB/T 2099.31-2025 "Household and similar use plugs and sockets - Part 31: Special requirements for sockets with USB power supply" specifies the safety and electromagnetic compatibility requirements for sockets with USB power supply. The implementation of standards will guide consumers to safely use sockets equipped with USB power, promote technological progress in China's power socket industry, and improve the quality and competitiveness of related products.

As a professional third-party testing and certification service organization, Jiayu Testing strictly builds a parts laboratory with advanced and precise testing instruments and equipment in accordance with international standards. It has qualifications recognized by CMA, CNAS, CBTL, and has been accredited by multiple authoritative certification institutions at home and abroad. It is equipped with a skilled professional technical team, rich industry service experience, and strong testing technology capabilities. Jiayu Testing provides one-stop testing and certification services for various electrical accessories and other parts products, ensuring that the quality and safety of the products meet international or national standards. Welcome to contact us at 400-9269-886!