Galvanic Corrosion of Underground Power Distribution Cable Materials

George Schick; D. Mitchell

doi:10.1520/STP41398S

SYMPOSIA PAPER Published: 01 January 1976

STP41398S

Galvanic Corrosion of Underground Power Distribution Cable Materials

Source

Bare concentric neutral conductors of buried power cables have failed due to corrosion in several areas of the United States. Galvanic corrosion, between the neutral conductor anode and a “semiconducting polyethylene” tape cathode, was investigated as one of the possible corrosion mechanisms. The results indicate that the rate of the galvanic corrosion is controlled by the cathode and in the present cable design contributes little to the neutral wire failure. If a semiconducting polyethylene jacket is extruded over the neutral conductors, the contribution of galvanic corrosion at jacket defects may become significant.

Author Information

Schick, George

Bell Laboratories, Whippany, N.J.

Mitchell, D., A.

General Public Utilities, Reading, Pa.

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Details

Developed by Committee: G01

Pages: 69–80

DOI: 10.1520/STP41398S

ISBN-EB: 978-0-8031-6045-3

ISBN-13: 978-0-8031-6199-3

Galvanic Corrosion of Underground Power Distribution Cable Materials

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