Title :
Dielectric study at microwave frequencies of halos in crosslinked polyethylene cable
Author :
Bose, T.K. ; Merabet, M. ; Crine, J.-P. ; Pélissou, S.
Author_Institution :
Dept. de Phys., Univ. du Quebec a Trois-Rivieres, Que., Canada
fDate :
4/1/1988 12:00:00 AM
Abstract :
The dielectric properties of halos in crosslinked polyethylene cable were studied using the method of time-domain reflectometry (TDR) between 1 MHz and 8 GHz. It was found that, although the halo is predominantly composed of free water, a low relaxation frequency is also present that is probably due to bound water or cumyl alcohol impurities. The water contents deduced from the TDR method and a Mitsubishi moisture meter are comparable. Water contents thus deduced were compared with measurements performed with a Mitsubishi moisture meter and the results found to be comparable
Keywords :
cable insulation; insulation testing; materials testing; moisture; organic insulating materials; polymers; time-domain reflectometry; 1 MHz to 8 GHz; Mitsubishi moisture meter; TDR method; XLPE; bound water; cumyl alcohol impurities; dielectric properties; free water; halos in crosslinked polyethylene cable; low relaxation frequency; microwave frequencies; time-domain reflectometry; Bonding; Cable insulation; Dielectric losses; Dielectric measurements; Dielectrics and electrical insulation; Impurities; Microwave frequencies; Polyethylene; Time measurement; Trees - insulation;
Journal_Title :
Electrical Insulation, IEEE Transactions on
