雷电灾害产生的原因分析及防雷对策研究

Analysis of the causes of lightning disasters andresearch on lightning protection

基于目前严峻的防雷工作形势。文章简要探讨了广西雷电监测预警,以河池市为例,对年平均雷暴日分布、时空分布特征、雷电灾害损失进行了分析。结果表明:河池市年均雷暴日是61.6天,负闪强度平均是-38.22 kA,正闪强度平均是49.74 kA;雷电月际分布呈现单峰型特征,7月雷电频次达到峰值;发生在农田、构筑物上的雷击最多,占比约为60%。结合雷电灾害产生的原因提出防雷对策,以期为相关工作者提供参考。

Based on the current severe situation of lightning protection work.This paper briefly discusses the monitoring and early warning of lightning in Guangxi,taking Hechi City as an example to analyze the annual average distribution of thunderstorm days,spatiotemporal distribution characteristics,and lightning disaster losses.The results show that the average annual thunderstorm day in Hechi City is 61.6 days,with an average negative flash intensity of-38.22 kA and an average positive flash intensity of 49.74 kA.The monthly distribution of lightning shows a unimodal characteristic,with the lightning frequency reaching its peak in July.The most frequent lightning strikes occur on farmland and structures,accounting for approximately 60%.Propose lightning protection measures based on the causes of lightning disasters,in order to provide reference for relevant workers.