建设在同一路由内的管道和高压交流输电线，管道不可避免地受到高压交流输电线的干扰，而管道与高压线之间的安全距离则是保证管道不必采取排流的重要指标。为探究埋地管道与高压交流输电线安全距离的问题，分别取4,6,8,10 V作为管道上感应电压的限值，利用相关软件研究了高压线稳态运行电流、管道与高压线的平行长度和土壤电阻率对安全距离的影响规律。结果表明,把4 V作为感应电压限值时，安全距离远大于其他三个限值对应的安全距离;随着平行长度、稳态运行电流和土壤电阻率的增大，安全距离也相应增大。

In the same routing, it is unavoidable that the current of transmission lines will cause interference corrosion on buried pipelines. The safe distance between pipelines and high voltage transmission lines is regarded as a norm, above which no electric discharge will be needed. In order to explore the safe distance between buried pipelines and high voltage AC transmission lines, related software was used to study the influences of some aspects on safe distance, including the steady state current, parallel distance between pipeline and transmission lines and soil resistivity. During the simulation, the limits of the induced voltages of 4 V, 6 V, 8 V and 10 V on pipelines were taken as a reference respectively. The results show that when the limit of the induced voltage was 4 V, the safe distance was longer than the others, and with the increase of parallel distance, steady state current or soil resistivity, the safe distance also increased.