层式土壤情况下的阻性耦合

RESISTIVE COUPLING EFFECTS IN STRATIFIED SOILS

本文分析了层式土壤情况下强电系统与通信系统间的阻性耦合特性,给出了通信设备及其它地下金属管线或埋电缆的金属屏蔽体遭受阻性耦合影响时的地电位计算公式。其结果与均匀土壤情况下所得结果进行比较表明,所提出的公式用于实际工程设计是可行的。

In this paper,we analyse the resistive coupling between the power supply system and the telecommunication system in stratified soils. We present the formulae for calculating the ground potentials of metal cable sheaths and other buried metal pipes subject to resistive coupling. Comparing the results with those of homogeneous soils indicates that the formulae advanced here are feasible for practical engineering design.