Impressed current cathodic protection technique is a kind of efficient measures for avoiding and slower the metal corrosion, so it was used more and more widely.

强制电流阴极保护技术是防止和缓解金属腐蚀的有效措施，因此得到了广泛应用。

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This paper describes the united anticorrosion methods of coatings and impressed current electrochemical protection, which offers protection to old, badly corrosion water-carried pipeline.

本文阐述了利用复合涂层与外加电流电化学保护相结合的方法，对已运行的旧的、腐蚀较严重的输水管道进行防护。

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