Abstract: The paper introduces a new lightning protection technology for automatic collection system of dam safety monitoring system jointly developed by Maintenance Branch of State Grid Xinyuan Company Limited and Zhanghewan Pumped Storage Power Station which is simple, applicable, economical, effective and worth popularizing.

Key words: remote-control power supply device, AC contactor, power supply line for monitoring system, twisted-pair communication line

摘要： 国网新源检修分公司与张河湾公司联合研制了一套新式大坝安全监测采集系统避雷技术。该技术简单实用、造价低廉且极易实现，避雷效果良好，已在张河湾电站和国网新源系统内推广使用。

关键词: 远程遥控电源装置, 交流接触器, 监测系统供电线路, 双绞线通讯线路