美利体育登录入口官网:LST HD 60364-4-443:2016 低压电气美利体育官网首页网址 第4-44部分 为确保安全所需的保护措施 防电压瞬变和电磁干扰 443 节 防雷击或开关过电压
Low-voltage electrical installations - Part 4-44: Protection for safety - Protection against voltage disturbances and electromagnetic disturbances - Clause 443: Protection against transient overvoltages of atmospheric origin or due to switching
(IEC 6...