输电线路防雷要点及运维管控措施

Key Points of Lightning Protection and Operation and Maintenance Control Measures of Transmission Line

输电线路运行中常因雷击闪络而引发跳闸事故,无法保证电力系统的可靠运行。基于上述问题,文章分别分析直击雷、感应雷、雷电冲击波对于输电线路的影响,浅谈输电线路防雷要点,即优化防雷设计、安装避雷设施、改善接地装置等,并通过合理选用检修模式、设计可行检修方案、防雷技术管控3种方式,提高输电线路的防雷水平,以期实现输电系统的稳定运行。

During the operation of transmission lines,tripping accidents are often caused by lightning flashover,which can not ensure the reliable operation of power system.Based on the above problems,this paper analyzes the impact of direct lightning,induced lightning and lightning shock wave on the transmission line,discusses the key points of transmission line lightning protection,that is,optimizing lightning protection design,installing lightning protection facilities and improving grounding devices,and improves the lightning protection level of transmission line by reasonably selecting maintenance mode,designing feasible maintenance scheme and lightning protection technology control,In order to realize the stable operation of the transmission system.