Failure Analysis and Solving Measures in Impressed Current Cathodic Proteetion System of a Long-distance Pipeline

For the abnormal potentiostat output of Impressed Current Cathodic Proteetion(ICCP) in a long-distance pipeline, the ICCP system failure was analyzed and problems were found finally, and then some measures were taken to restore the CP system. And taking it as an example, the frequent failure analysis and treatment measures in ICCP system of long-distance pipeline are introduced briefly.