Interference between HV transmission line and nearby pipelines

Transmission lines are the major source of electromagnetic field interference (EMFI) with metallic structures such as pipelines, railways and under ground cables laying in the same corridor. It is a serious problem because the (EMFI) produces induced voltages on the metallic structures .These voltages can result in hazard volt to operating personnel especially who operate on pipelines .It can affect the pipeline associated equipment (cathodic protection , damage the coating , affect the pipe itself and furthermore will produce corrosion). This paper discusses the study for inductive interference between pipeline and neighboring electrical transmission line .It is especially used to simplify and to automate the modeling for right-of-way configuration involving transmission line and pipeline .It can calculate the voltage on pipeline and the longitudinal current. A practical case study of inductive interference between a pipeline and electrical power line under steady state condition is illustrated.