KS C IEC 61557-8-2019 低压配电系统的电气安全高达1 000 V a.c.和1 500 V直流 - 用于测试 测量或监控保护措施的设备 - 第8部分:IT系统的绝缘监控设备
Electrical safety in low voltage distribution systems up to 1 000 V a.c. and 1 500 V d.c. — Equipment for testing,measuring or monitoring of protective measures —Part 8: Insulation monitoring devices