GB 16916.1-2003
Residual current operated circuit-breakers without integral overcurrent protection for household and similar uses(RCCB)-Part 1: General rules (English Version)

Standard No.

GB 16916.1-2003

Language

Chinese, Available in English version

Release Date

2003

Published By

General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China

Status

Be replaced 2015-06

Replace By

GB 16916.1-2014

GB/T 16916.1-2014

Latest

GB 16916.1-2014

GB/T 16916.1-2014

Replace

GB 16916.1-1997

Scope

This part applies to AC 50Hz or 60Hz, rated voltage not exceeding 440V, rated current not exceeding 125A, operating function is independent or related to the mains voltage, without overcurrent protection, mainly used for protection against electric shock hazards for household or similar purposes The residual current operated circuit breaker (hereinafter referred to as RCCB). RCCB is used to protect people from indirect contact. At this time, the exposed conductive parts of the equipment should be connected to a suitable earthing plate. They can also be used to provide protection against fire hazards caused by persistent ground fault currents due to inoperative overcurrent protective devices. RCCB with a rated residual operating current not exceeding 30mA can also be used as a supplementary protection measure when other electric shock protection measures fail. This standard applies to devices that can simultaneously perform functions such as detecting residual current, comparing the residual current value with the residual operating current value, and disconnecting the protected circuit when the residual current exceeds the residual operating current value. When excessive overvoltage is likely to occur on the power supply side (for example, the power supply is introduced through overhead lines), special protective measures (such as the use of lightning arresters) can be taken (see GB 16895.12). The general type RCCB is resistant to false tripping, which means that the surge voltage (generated by operating transient overvoltage or lightning induction) generates load current in the equipment without flashover. S-type RCCB has sufficient resistance to mis-tripping even when surge voltage causes flashover and generates freewheeling. Special requirements must be supplemented for the following products: - Residual current operated circuit breakers with overcurrent protection (see GB 16917); - RCCBs installed in household and similar general-purpose plugs, sockets or appliance connectors or specially combined with them RCCBs used. The technical requirements of this section apply to normal environmental conditions (see 7.1). For RCCBs used in areas with severe environmental conditions, the necessary technical requirements may be supplemented. RCCBs using batteries are not included in the scope of this standard.

GB 16916.1-2003 history

• 2014 GB 16916.1-2014 Residual current operated circuit breakers (RCCB) without overcurrent protection for household and similar purposes - Part 1: General rules
• 2003 GB 16916.1-2003 Residual current operated circuit-breakers without integral overcurrent protection for household and similar uses(RCCB)-Part 1: General rules
• 1997 GB 16916.1-1997 Residual current operated circuit-breakers without integral overcurrent protection for household and similar uses (RCCB)--Part 1: Genaral rules

GB 16916.1-2003 -All Parts