Draft Document - Low voltage electrical installations - Part 4-44: Protection for safety - Protection against voltage disturbances and measures against electromagnetic influences - Clause 442: Protection of low-voltage installations against temporary overvoltages and faults between high-voltage systems and earth (IEC 64/1484/CD:2005)
文件草案-低压电气装置-第4-44部分:安全防护-电压干扰防护和电磁影响措施-第442条:低压装置的临时过压保护和高压系统和