DS/EN 61557-12:2008 高达 1 000 V ac 和 1 500 V dc 的低压配电系统的电气安全 保护措施的测试、测量或监控设备 第12部分:性能测量和监控设备(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)