摘要
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,表明文中提出的公式用于实际工程设计是可行的。
The resistive coupling characteristics between the power system and the telecommunication system in stratified soils are analysed. A method for the calculation of the ground potentials when the telecommunication equipment and other ground pipes(buried metal pipes or metal sheathes of cables) are influenced by the resistive coupling is suggested. In addition, the results obtained in stratified soils as well as in homogeneous soils are compared. It is shown that the formulae proposed are feasible in the design of practical engineering.