JIS C0364-4-481-1999 建筑物的電氣裝置.第4部分:安全防護.第48章:作為外部影響功能防護措施的選擇第481節:與外部影響有關的電擊防護的測量選擇
Electrical installations of buildings Part 4: Protection for safety Chapter 48: Choice of protective measures as a function of external influences Section 481: Selection of measures for protection against electric shock in relation to external influences