GB/T 40777-2021 Active National standards

GB/T 40777-2021 Requirements for automatic reclosing devices(ARDs) for circuit-breakers,RCBOs and RCCBs for household and similar uses

Publish Date: 2021-10-11 Implement Date: 2022-05-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: GB/T 40777-2021

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Low-voltage distribution electrical equipment

ICS Name: Fuses and other overload protection devices

Publish Date: 2021-10-11

Implement Date: 2022-05-01

Pages: 40 pages

Scope

This document specifies the terms and definitions, technical requirements, and test methods for circuit breakers, residual current circuit breakers (RCCBs), and residual current operated circuit breakers (RCBOs) for household and similar applications. This document applies to household and similar applications with a rated voltage not exceeding AC 440 V, intended for use with circuit breakers, residual current circuit breakers (RCCBs) without overcurrent protection, and residual current operated circuit breakers (RCBOs) for household and similar applications, designed as factory-assembled or site-assembled automatic reclosing devices (ARDs). ARDs are used to reclosing the main protective device (MPD) after it has tripped, in order to restore power supply to the circuit. MPDs may include circuit breakers compliant with IEC 608981 and/or IEC 608982, RCCBs compliant with IEC 610081 and/or IEC 62423, and RCBOs compliant with IEC 610091 and/or IEC 62423. This document includes the following types of ARDs: -- ARDs with evaluation methods that reclosing only when both the expected line current and the expected ground fault current do not exceed specified values; -- ARDs with evaluation methods that reclosing only when the expected line current does not exceed specified values; -- ARDs with evaluation methods that reclosing only when the expected ground fault current does not exceed specified values; -- ARDs that reclosing without any evaluation.

Development Information

Word Count: 79 Thousand words Pages: 40 pages

Referenced Standards

GB/T 10963.1-2020 Electrical accessories—Circuit-breakers for overcurrent protection for household and similar installations—Part 1:Circuit-breakers for a.c.operation IEC 60065:2014 IEC 60384(所有部分) IEC 60898-1 IEC 60898-2:2016 IEC 60950-1 IEC 61000-4-2 IEC 61000-4-3 IEC 61000-4-4 IEC 61000-4-5 IEC 61000-4-6 IEC 61000-4-16 IEC 61008-1:2010+AMD1:2012+ AMD2:2013 IEC 61009-1:2010+AMD1:2012+ AMD2:2013 IEC 61189-2 IEC 61543:1995+AMD1:2004+AMD2:2005 IEC 61558(所有部分) IEC 62873-2 CISPR 14-1