The purpose of this paper is to relate in a general way the magnitude of corrosion leakage experience on United Gas Corporation city distribution systems and experience with cathodic protection in the mitigation of corrosion.
It is not the intention of the writer to delve into the theory of cathodic protection. However, an attempt will be made to relate from the gas distribution system operator’s point of view the need for cathodic protection on steel gas distribution mains, the method employed in application of cathodic protection to mains and the results obtained. The practical operator, although interested in the theory of cathodic protection, is more concerned with what it will do and how much it will cost.
For historical background, while this article contains much material originally presented by C. L. Morgan at the American Gas Association Meeting in 1945, it also includes performance data and experience gained since that...
