交流1000V和直流1500V及以下低压配电系统电气安全 防护措施的试验、测量或监控设备 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 1000V a.c. and 1500V 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