移动气象雷达车避雷针设计分析

以北京市避雷装置安全检测中心对一部移动气象雷达车进行的防雷检测为例,通过滚球法和雷击概率与避雷针高度关系公式,计算了避雷针保护范围,研究了避雷针合理高度和最佳位置的选取方法。根据气象雷达波特点,分析了雷达车避雷针材料的选用要求。从避雷针和避雷网的特点出发探讨了优先选用避雷针的原因。针对雷达车移动特点提出了避雷针的设计方法。

Design of Lightning Rods for Mobile Weather Radar Vehicles

Taking a mobile weather radar vehicle,whose lightning protection system was checked and measured by the Beijing Lightning Devices Security Test Center,as an example,the protection scope of the lightning rod is calculated and the selection methods of the optimal height of the lightning rod and the best layout place are studied,by using the rolling-sphere method and the relationship formula between the probability of lightning strokes and the height of the lightning rod.Based on the characteristics of meteorological radar waves,the material selection requirements of lightning rods are analyzed.From the characteristics of lightning rods and the lightning protection network,the reasons for applying lightning rods preferentially are discussed.According to the moving characteristics of mobile radar vehicles,the suggestions and measures about the design of the lightning rods are given.