Accelerated aging of XLPE and EPR cable insulations in wet conditions and its influence on electrical characteristics

Author

Nikolajevic, S.V.

Author_Institution

Electr. Power Distribution Co., Belgrade, Yugoslavia

fYear

1998

fDate

22-25 Jun 1998

Firstpage

337

Lastpage

340

Abstract

This paper presents the results of an investigation into changing of crosslinked polyethylene (XLPE) ethylene-propylene rubber (EPR) cable insulations on electrical characteristics due to water absorption. The experimental set up was made for the following XLPE and EPR cable insulations: steam and dry cured with water tree retardant crosslinked polyethylene (TR-XLPE) and steam cured EPR. During tests, the tap water was injected (1) into the cable conductor with cable ends closed, (2) into the cable conductor with cable ends opened and into the metallic screen with the cable ends closed. The presence of water in TR XLPE and EPR cables was subjected to electrical stress and heating. The tests of electrical characteristics of TR XLPE and EPR cable insulations were performed as a function of aging time at different aging temperatures

Keywords

XLPE insulation; ageing; ethylene-propylene rubber; power cable insulation; EPR; TR-XLPE; XLPE; accelerated aging; cable insulation; crosslinked polyethylene; dry curing; electrical characteristics; ethylene-propylene rubber; steam curing; water absorption; water tree retardant material; wet environment; Absorption; Accelerated aging; Cable insulation; Conductors; Electric variables; Paramagnetic resonance; Polyethylene; Rubber; Trees - insulation; Water;

fLanguage

English

Publisher

ieee

Conference_Titel

Conduction and Breakdown in Solid Dielectrics, 1998. ICSD '98. Proceedings of the 1998 IEEE 6th International Conference on

Conference_Location

Vasteras

Print_ISBN

0-7803-4237-2

Type

conf

DOI

10.1109/ICSD.1998.709294

Filename

709294