Abstract：To study the response of the overhead cable excited by the high-altitude electromagnetic pulse (HEMP) near real ground,a simplified earth model with two soil layers is established.The calculation formula of the terminal load induced current is deduced in the situation of the stratified earth based on transmission line model,and its validity is verified by the comparison with the computer simulation technology (CST) simulation result.According to the conductivity distribution law of the typical surface soil,the influences of the upper and lower soil’s electrical conductivities and the upper soil’s thickness on the load induced current are analyzed.The results indicate that,comparing to the single conductivity earth model,the stratified conductivity earth model is more accurate.
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2016, Vol. 31 
