DIN VDE 0100-442:2013
低壓電氣裝置.第4-44部分:安全防護.由于高壓系統中接地故障和低壓系統中故障的抗暫時過電壓的低壓裝置的防護(IEC 60364-4-44-2007(第442條款),修訂本).德文實施HD 60364-4-442-2012
Low-voltage electrical installations - Part 4-442: Protection for safety - Protection of low-voltage installations against temporary overvoltages due to earth faults in the high-voltage system and due to faults in the low voltage system (IEC 60364-4-44:20