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ASTM Selected Technical Papers
Galvanic and Pitting Corrosion—Field and Laboratory Studies
By
Robert Baboian
Robert Baboian
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W. D. France, Jr Jr
W. D. France, Jr Jr
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L. C. Rowe
L. C. Rowe
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J. F. Rynewicz
J. F. Rynewicz
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ISBN-10:
0-8031-6199-9
ISBN:
978-0-8031-6199-3
No. of Pages:
318
Publisher:
ASTM International
Publication date:
1976

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.

1.
McLellan
,
D. W.
and
Schick
,
G.
, “
Corrosion of Concentric Neutrals on Buried Power Distribution Cables—A Preliminary Report
,” presented at the
Institute of Electrical and Electronic Engineers Power Engineering Society Conference and Exposition on Underground Transmission and Distribution
,
Dallas, Tex.
,
03
04
1974
.
2.
Zastrow
,
O. W.
, “
Copper Corrosion in High Resistivity Soil
,”
U.S. Department of Agriculture
,
Rural Electrification Administration Staff Report
,
31
10
1972
.
3.
Zastrow
,
O. W.
, “
Soil Corrosion of Copper Concentric Neutral Wires on Underground Electric Cable
,”
U.S. Department of Agriculture
,
Rural Electrification Administration Status Report
,
08
08
1973
.
4.
Zastrow
,
O. W.
, “
Copper Corrosion in Moderate and High Resistivity Soils
,” presented at the
National Association of Corrosion Engineers’ Corrosion/74
,
Chicago, Ill.
, 4–8 March 1974.
5.
Puschel
,
M. A.
, “
URD Cables Cannot be Buried and Forgotten
,” presented at the
National Association of Corrosion Engineers Corrosion/74
,
Chicago, Ill.
, 4–8 March 1974.
6.
Marwick
,
I. J.
and
McNamara
,
J. H.
,
Underground Engineering
, Vol.
2
, No.
3
, April/May, 1971, pp. 17-24.
7.
Fontana
,
M.
and
Greene
,
N.
in
Corrosion Engineering
,
McGraw-Hill
,
New York
,
1967
, p. 342.
8.
Henry
,
W. D.
and
Wilde
,
B. E.
,
Corrosion
, Vol.
27
, No.
11
,
1971
, pp. 479-482.
9.
Marwick
,
I. J.
,
Electrical World
 0013-4457, Vol.
182
, No.
2
,
15
07
1974
, p. 60.
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