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Title: Pipe To Soil Readings By Other Than Cathodic Protection Personnel
Author: Don May
Source: American Gas Association 1976
Year Published: 1976
Abstract: For many years now cathodic protection has been recognized as an effective means of halting corrosion on underground metal gas distribution piping. Il is now used throughout the industry and is required by the Department of Transportation Regulations under many conditions. The effectiveness of this protection is dependent upon the continuous presence of a protective current to all otherwise anodic points along the buried piping system. If this current is lost or diminished to a certain point, even for short periods, corrosion may occur at varying rates. Metal which is lost from the pipe wall during corrosion is lost for good, so every day that protection is not being maintained brings closer the advent of corrosion leaks on the system.

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