Methods of making duct surveys, surface potential gradient surveys, measurements of cable to reference electrode potentials, sheath current measurements and earth resistivity measurements are described. Examples are given of various types of measurement and their interpretation; it is pointed out that a single measurement of the potential between a cable sheath and a reference electrode irr contact with nearby earth may not reveal the existence of a corrosive condition. Emphasis is given to the difference in polarity between self-produced corrosion cells and those resulting from external influences such as stray current or contact with a more noble metal. The importance of employing a variety of measurements in any particular study is shown. References are given to techniques employed by other workers in making underground corrosion tests. 4.5.3
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May 1958
Research Article|
May 01 1958
Electrical Measurements and Their Interpretation In Underground Cable Corrosion Problems*
K. G. Compton
K. G. Compton
K. G. COMPTON has worked with corrosion problems for more than 25 years at the Bell Telephone Laboratories, Murray Hill, N. J. During World War II he was a consultant on the deterioration of materials to the NDRC and the Chief of Ordnance; he has also been active on corrosion committees of several technical societies. It was at the State College of Washington that he received his training in electrical and chemical engineering and in electrochemistry.
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CORROSION (1958) 14 (5): 47–54.
Article history
Received:
July 15 1956
