Status in Research on Stray-current Corrosion of Buried Steel Pipelines

With the increase of built long-distance pipelines and other buried pipelines,the stray current corrosion of buried pipelines has received increasing attention.Based on the references and documents published in relevant fields,the stray current corrosion mechanism is analyzed,its main causes are summarized,the characters and harmfulness of stray current corrosion are introduced,some examples are given to analyze the engineering testing method and protection strategy about stray current corrosion.