NF C42-198-12*NF EN 61557-12:2008 小于1000V交流和1500V直流的低压配电系统中的电气安全 保护措施的测试、测量或监测用设备 第12部分:性能测量和监测装置(PMD)
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 12 : performance measuring and monitoring devices (PMD)