DIN EN 61557-6:2008
1000V以下交流和1500V以下直流低压配电系统的电气安全.防护措施的检验、测量或监测设备.第6部分:TT、TN和IT系统中剩余电流装置(RCD)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 6: Effectiveness of residual current devices (RCD) in TT, TN and IT systems (IEC 61557-6