Title :
Are Cable Shields Being Damaged During Ground Faults?
Author :
Hamer, PAUL S. ; Wood, Barry M.
Author_Institution :
Chevron Corporation, P. O. Box 5045, San Ramon, CA 94583.
Abstract :
Simulated ground-fault tests (50-700 A) of various cable, ground wire, and conduit configurations are made to determine the proportion of the total ground-fault current carried by the cable metallic shield. The percentage of the total fault current for the various return paths is tabulated, along with representative zero-sequence circuit impedances. General guidelines for protecting cable shields from damage are presented.
Keywords :
Cable shielding; Circuit faults; Conductors; Fault currents; Guidelines; Impedance; Power cables; Protection; Proximity effect; Wire;
Journal_Title :
Industry Applications, IEEE Transactions on
DOI :
10.1109/TIA.1986.4504847
