Title :
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
fDate :
2/1/1991 12:00:00 AM
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;
Journal_Title :
Electrical Insulation, IEEE Transactions on
