雷击感应电压简化计算方法的推导

Simplified Calculation Method of Lightning Induced Voltage is Derived

在分析了电子设备雷击故障的主要原因后,结合国家标准,计算了由于电线电缆遭受雷击而导致设备受损的年可能次数,由此引出对感应雷过电压计算的必要性,同时介绍了目前雷击过电压计算的几种模型。在一定的假设条件下,通过对毕奥-萨伐尔定律和感生电动势的综合推导,得出了雷击过电压的一种简单计算机公式。

Through analysis of failure on electronic equipments, Combined with national standards, calculated equipments damaged times per one year due to being struck by lightning in wire, and thus leads to the necessary of computing lightning over-voltage and introduces of several models about lightning over-voltage. Under certain assumptions, through derivation of Biot-Savart law and induced emf obtained a simple formula of the lightning over -voltage.