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Title: Technical And Economic Considerations Related To Cathodically Protecting Bare Steel Mains Distribution( Systems In Non-Stray Areas)
Author: Norman R. Thresher
Source: American Gas Association 1977
Year Published: 1977
Abstract: Historically, decisions made by operators of distribution systems throughout the United States regarding existing bare steel pipe fall into these general formats 1. Use leak detection and repair or replace piping as corrosion takes its toll. 2. Use leak detection and install an anode with each leak repiiir to mitigate local cells and adverse effects created during installation of lamp repair. 3. When feasible and physically possible, use electrical surveys to locate areas of active corrosion and anode to mitigate corrosion attack on segments of piping. 4. Develop a program that will result in cathodically protecting bare piping which is economically feasible to protect, Formats I and 2 are referred to as maintenance programs while formats .T and 4 are called preventative maintenance. Combinations of any or all of the four formats are also possible and offer a freedom of decision which can be confusing to the uniformed man in the field.

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