GB/T 31143-2014 Replaced National standards

GB/T 31143-2014 General requirements for arc fault detection devices (AFDD)

Publish Date: 2014-09-03 Implement Date: 2015-04-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: GB/T 31143-2014

Standard Type: National standards

Standard Status: Replaced

is_force_gb: no

CCS Name: Low-voltage distribution electrical equipment

ICS Name: Fuses and other overload protection devices

Publish Date: 2014-09-03

Implement Date: 2015-04-01

Pages: 136 pages

Scope

This standard applies to arc fault detection devices (AFDDs) used in AC circuits for household and similar purposes. The standard specifies the technical requirements and test procedures for AFDDs. Note 1: AFDDs are similar to the AFCI (Arc Fault Circuit Interrupter) in the United States. AFDDs can be designed by manufacturers as: - a single device with a disconnecting mechanism capable of disconnecting the protected circuit under specified conditions; - a single device combined with a protective device; - an independent unit assembled on-site with the declared protective device according to Appendix D. The combined protective devices should be circuit breakers that comply with GB 10963.1-2005 or residual current devices (RCDs) that comply with GB 16916.1-2014, GB 16917.1-2014, and GB 22794-2008. Under certain conditions, if an arc persists, the arc fault current may cause a fire hazard. These devices are designed to reduce the fire risk of fixed electrical installations at the end of the circuit. Overvoltages caused by disconnecting the neutral wire in three-phase electrical installations, which may lead to fire, can also be protected by such devices. This is an additional option, see Section 9.22.