电涌保护器后备保护装置的选用原则  

Selection Principles of Backup Protection Device for Surge Protective Device

作　　者：黄丽雄 王宏民[2] 

机构地区：[1]北京ABB低压电器有限公司,北京100176 [2]ABB(中国)有限公司,北京100015

出　　处：《现代建筑电气》2015年第10期24-28,共5页Modern Architecture Electric

摘　　要：低压配电系统的防雷保护中广泛地使用电涌保护器。电涌保护器在使用过程中有可能出现突然的短路故障,而此时电涌保护器内置脱离器无法快速断开安装点的短路电流,故必须安装后备保护装置以确保低压配电系统安全、可靠的运行。依据国内外标准对于后备保护装置的要求并结合实际试验结果,给出后备保护装置的选用原则,以供电涌保护器制造商和相关用户参考。Surge protective device（ SPD） is widely used in the lightning protection of the low voltage power distribution system. In the process of using SPD,the short circuit fault may occur. But at this time,SPD internal disconnector can＇t quickly disconnect the short circuit current at the mounting point. Therefore,the installation of the backup protection device is necessary for ensuring the safe and reliable operation of the low voltage power distribution system. Based on the requirements of backup protection device in the domestic and international standards and integrating the actual testing results,the selection principles of backup protection device were given. It can provide references for the SPD manufacturers and relevant users.

关 键 词：电涌保护器 短路故障 后备保护装置 低压配电系统 

分 类 号：TU856[建筑科学]