Low-voltage electrical installations - Part 4-44: Protection for safety - Protection against voltage disturbances and electromagnetic disturbances - Clause 443: Protection against overvoltages of atmospheric origin or due to switching (IEC 60364-4-44:2001 + A1:2003, modified); German implementation
低压电气装置.第4-44部分:安全防护.电压干扰和电磁干扰防护.第443条:大气过电压或开关过电压防护(IEC 60364-4-44:2001+A1:2003 修改);德国实施