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 14: Equipment for testing the safety of electrical equipment of machinery (IEC 61557-14:2013); German version EN 61557-14:2013
交流1000V和直流1500V以下低压配电系统的电气安全.保护措施的试验、测量或监测设备.第14部分:机械电气设备安全试验设备(IEC 61557-14-2013);德文版EN 61557-14:2013