JIS C0364-4-442 AMD 2-2002 建筑物的電氣設施.第4部分:安全防護.44章:過電壓保護.442節:低壓系統對高壓系統與地之間故障的防護(修改件 2)
Electrical installations of buildings -- Part 4: Protection for safety -- Chapter 44: Protection against overvoltages -- Section 442: Protection of low-voltage installations against faults between high-voltage systems and earth (Amendment 2)