青藏线格拉段和同纬度平原雷电活动规律比较

为了解输电线路防雷设计所基于的雷电活动特征,通过统计青藏线格拉段110 kV输电线路沿线各站点与同纬度平原地区站点近50年来的雷电活动观测数据,分析比较了两地区各站点的雷电活动特征。结果表明青藏高原同内地相比,雷电活动次数频繁但强度不大。研究结果可供青藏铁路格拉段沿线供电系统防雷工作参考。

Comparison of Lightning Activity Regularity Between Golmud to Lhasa Section of Qinghai to Tibet Railway and Inland Plain Regions

Realizing the lightning activity regularity is the fundament of lightning protection design. The field observation data of lightning activity of all observation stations along Golmud to Lhasa section of Qinghai to Tibet Railway and respective observation stations in inland plain regions with the same latitude were statistically analyzed from recent 50-years observation data, the lightning activity properties of observation stations in Qinghai-Tibet Plateau and in inland plain regions with the same latitude were discussed. By comparing with the statistical results of inland observation stations, the lightning activity in Qinghai-Tibet Plateau is frequent with a low intensity. The analyzed results can provide a reference for the lightning protection design of power supply system for the Golmud to Lhasa section of Qinghai to Tibet Railway.