DIN VDE 0100-470-1996 額定電壓不超過1000V供電設備的安裝.第4部分:安全保護.第27章:安全保護措施的應用
Erection of power installations with nominal voltages up to 1000 V - Part 4: Protection for safety; Chapter 47: Application of protective measures for safety (IEC 60364-4-47:1981 + A1:1993, modifiziert); German version HD 384.4.47 S2:1995