CATHODIC PROTECTION—1

The application of cathodic protection to buried, submerged or immersed metals has become of increasing importance during the last three decades to civil, structural, mechanical, marine and chemical engineers. Although, at the moment, it has only a limited application for the protection of chemical plant, the method may become more important in this field in the future. The principles of cathodic protection, its applications, advantages and limitations and some of its present uses in protecting chemical plant are considered in the following article.