Title :
Evaluation of field aged HMWPE insulated distribution cables
Author :
Kong, Albert ; Lawson, Jack ; Bristol, Ray ; Landinger, Carl
Author_Institution :
Pacific Gas & Electr. Co., San Francisco, CA, USA
fDate :
4/1/1992 12:00:00 AM
Abstract :
The evaluation of large quantities of field aged high molecular weight polyethylene (HMWPE) cables which were subjected to extensive electrical and physical testing is described. The electrical tests conducted were AC and DC breakdowns, corona extinction, and volume resistivity. The physical tests included semiconducting shield adhesion. Microscopic studies were conductor for semiconducting shield protrusions, void and contamination count, and treeing. The results of the electrical and physical testing are reported. The correlation between AC breakdown strength and treeing is presented
Keywords :
cable insulation; corona; electric breakdown of solids; insulation testing; organic insulating materials; polymers; power cables; AC breakdown test; DC breakdown test; contamination count; corona extinction test; electrical testing; field aged cables; high molecular weight polyethylene; insulated distribution cables; physical testing; semiconducting shield adhesion; semiconducting shield protrusions; treeing; voids; volume resistivity test; Adhesives; Aging; Cable insulation; Cables; Conductivity; Corona; Electric breakdown; Polyethylene; Semiconductivity; Semiconductor device testing;
Journal_Title :
Power Delivery, IEEE Transactions on
