Influence of insulation morphology, impurities and oxidation on some electric properties of cables

Author

Crine, Jean-Pierre ; Pélissou, Serge ; Parpal, Jean-Luc

Author_Institution

Inst. de Recherche d´´Hydro-Quebec, Varennes, Que., Canada

Volume

26

Issue

1

fYear

1991

fDate

2/1/1991 12:00:00 AM

Firstpage

140

Lastpage

145

Abstract

It is shown that the AC breakdown strength and dielectric loss of unaged and field-aged transmission and distribution cables vary with insulation crystallinity, contamination, and oxidation. It is also shown that the influence of these parameters is particularly important near the conductor shield and varies with aging. The influence of curing on cable properties is briefly discussed. The sample preparation, crystallinity, impurity, oxidation, AC breakdown, and dielectric loss measurements are described

Keywords

ageing; cable insulation; dielectric losses; electric breakdown of solids; organic insulating materials; polymers; power cables; AC breakdown strength; cable properties; conductor shield; contamination; dielectric loss; distribution cables; electric properties of cables; field aged cables; impurities; influence of curing; insulation crystallinity; insulation morphology; oxidation; power cables; sample preparation; transmission cables; unaged cables; Cables; Crystallization; Dielectric breakdown; Dielectric loss measurement; Dielectric losses; Dielectrics and electrical insulation; Impurities; Morphology; Oxidation; Propagation losses;

fLanguage

English

Journal_Title

Electrical Insulation, IEEE Transactions on

Publisher

ieee

ISSN

0018-9367

Type

jour

DOI

10.1109/14.68234

Filename

68234