THE CORROSION INSPECTION OF JIN-WU ETHYLENE PIPELINE IN SHANGHAI

After more than 10 years running,the situation of corrosion of Jin-Wu ethylene pipeline in Shanghai was evaluated.A survey of the coating,thickness of pipe,corrosion status and validity of cathodic protection system indicates that the protective coating is still effective,the impressed current cathodic protection system is running in gear and the maintenance of the protection system is very important.