T/GDMES 0022-2020 Active Group standards

T/GDMES 0022-2020 Shorted wire, Phase protection low-voltage circuit breaker

Publish Date: 2020-11-24 Implement Date: 2021-01-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: T/GDMES 0022-2020

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: Electrician

ICS Name: Low-voltage switchgear and controllers

Publish Date: 2020-11-24

Implement Date: 2021-01-01

Scope

Scope: This document is applicable to circuit breakers used to connect to AC rated frequency of 50 Hz, rated working line voltage not exceeding 690 V, and rated current not exceeding 6,300 A circuits. Circuit breakers are used to disconnect the circuit when the line encounters zero-phase fault or phase failure, ensuring the safe operation of the circuit and electrical equipment. Under normal working conditions, they are used to distribute electrical energy, frequently connect and disconnect circuits, and have overload protection, short-circuit protection, demand (load limit) protection, residual current protection, ground fault current protection, overvoltage protection, undervoltage protection, unbalanced voltage protection, unbalanced current protection, reverse power protection, phase sequence protection, and regional selective interlock protection functions. Main technical content: This document specifies the classification, characteristics, product data and information, normal working and installation conditions, structural and performance requirements, testing, packaging, transportation, and storage of low-voltage circuit breakers for zero-phase and phase failure protection (hereinafter referred to as circuit breakers).

Development Information

Related Standards

GB 7251.2-1997 Replaced

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Publish Date: 1997-12-30

GB/T 11022-1999 Replaced

GB/T 11022-1999 Common specifications for high-voltage switchgear and control gear standards

Publish Date: 1999-10-10

GB/T 18858.1-2002 Replaced

GB/T 18858.1-2002 Low-voltage switchgear and control gear Controller-device interface(CDIs)—Part 1:General rules

Publish Date: 2002-10-08

GB/T 18858.3-2002 Replaced

GB/T 18858.3-2002 Low-voltage switchgear and control gear—Controller-Device interface(CDI)—Part 3:Device Net

Publish Date: 2002-10-08

GB/Z 18859-2002 Replaced

GB/Z 18859-2002 Enclosed low-voltage switchgear and controlgear Assemblies—Guide for testing under conditions of arcing due to internal fault

Publish Date: 2002-10-08

GB 14048.4-2003 Replaced

GB 14048.4-2003 Low-voltage switchgear and controlgear—Electromechanical contactors and motor-starters

Publish Date: 2003-09-10