IEC 61557-6-2019
1000V AC和1500V DC以下低压配电系统的电气安全保护措施的试验、测量或监测设备第6部分:TT、TN和IT系统中剩余电流装置的有效性
Electrical safety in low voltage distribution systems up to 1 000 V AC and 1 500 V DC - Equipment for testing, measuring or monitoring of protective measures - Part 6: Effectiveness of residual curren