GB 16917.21-1997
AbolishedResidual current operated circuit-breakers with integral overcurrent protection for household and similar uses (RCBO)--Part 2.1:Applicability of the general rules to RCBO functionally independent of line voltage
家用和类似用途的带过电流保护的剩余电流动作断路器(RCBO) 第2.1部分:一般规则对动作功能与线路电压无关的RCBO的适用性