BS EN 61557-10-2013 交流1000 V和直流1500 V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. 防护措施的试验, 测量或监控用组合测量设备
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. Combined measuring equipment for testing, measuring or monitoring of protective measures