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Title: The Calculation Of True Cathodic Protection Interference Drain Current From Easily Measured Field Data
Author: Richard L. Seifert
Source: American Gas Association 1979
Year Published: 1979
Abstract: The meager clues which one can gather from various electrical observations at aboveground terminals, are all that one usually has to work with in the study of underground interference problems. From such observations, the author has established mathematical models of the known types of interference problems and from the study of those models, aided immeasurably by a Hewlett- Packard HP-97 programmable calculator, he has developed a simple method for determining the true interference drain current at interference sites. This paper describes his reasoning and approach to the solution, with examples and should be a welcome piece of literature for field corrosion engineers and technicians.

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