GB/T 18216.9-2015

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 9: Equipment for insulation fault location in IT systems

交流1000V和直流1500V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9部分：IT系统中的绝缘故障定位设备