Criteria are given for the adequate cathodic protection of coated, buried or submerged steel pipe lines and similar structures. It was recommended that a protective electric current be applied to the structure in an amount sufficient to maintain its external surface, at every point, negative by at least 0.85 volt to a copper-saturated copper sulfate half cell in the structure’s immediate proximity. Three reservations regarding the use of these criteria are incorporated into the recommendations. 5.2.4

Subject
Electric current, Steel structures, Underground structures, External surfaces, Piping, Manufacturing, Cathodic protection, Copper sulfate, Steel pipes, Engineering, Electric potential, Soil, Half cells
Copyright 1958 by the National Association of Corrosion Engineers.
1958
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