Evaluation of service aged 35 kV TR-XLPE URD cables

Author

Katz, Carlos ; Walker, Michael

Author_Institution

Cable Technol. Labs. Inc., New Brunswick, NJ, USA

fYear

1996

fDate

15-20 Sep 1996

Firstpage

411

Lastpage

416

Abstract

This paper provides information on aging of URD cable insulated with tree-retardant crosslinked polyethylene (TR-XLPE) compound, installed in a typical utility environment. Numerous evaluations were performed on samples of the cables aged up to 7 years in-service. AC and impulse voltage breakdown data are compared with data for similar 35 kV ethylene propylene rubber (EPR) and crosslinked polyethylene (XLPE) insulated cables removed from the same utility system. The data show that, to date, the rate of degradation of TR-XLPE cables is less than that of the EPR and XLPE insulated cables. Extrapolation of the data, assuming the same rate, indicates TR-XLPE cable will have the longest life

Keywords

XLPE insulation; ageing; ethylene-propylene rubber; insulation testing; life testing; power cable insulation; power cable testing; trees (electrical); underground cables; underground residential distribution systems; 35 kV; AC voltage breakdown data; ethylene propylene rubber insulation; impulse voltage breakdown data; service aged TR-XLPE URD cables; tree-retardant crosslinked polyethylene; utility environment; Aging; Cable insulation; Degradation; Dielectric breakdown; Extrapolation; Paramagnetic resonance; Performance evaluation; Polyethylene; Rubber; Trees - insulation;

fLanguage

English

Publisher

ieee

Conference_Titel

Transmission and Distribution Conference, 1996. Proceedings., 1996 IEEE

Conference_Location

Los Angeles, CA

Print_ISBN

0-7803-3522-8

Type

conf

DOI

10.1109/TDC.1996.547548

Filename

547548