DIN EN 61557-11-2009
交流1000V和直流1500V以下低压配电系统电气安全.防护检测的试验,测量或监控设备.第11部分:TT,TN和IT系统中A型和B型剩余电流监测器(RCMs)的有效性
Electrical safety in low voltage distribution systems up to 1000 V a.c. and 1500 V d.c. - Equipment for testing, measuring or monitoring of protective measures - Part 11: Effectiveness of residual current monitors (RCMs) type A and type B in TT, TN and IT