Title :
Environmental dependence of dielectric and electrical conduction processes in insulating polymers
Author :
Das-Gupta, D.K. ; Doughty, K.
Author_Institution :
Sch. of Electron. Eng. Sci., Univ. Coll. of North Wales, Bangor, UK
fDate :
2/1/1988 12:00:00 AM
Abstract :
Time-resolved charging currents have been measured in a range of common thermoplastics in the virgin form, after field-cleaning and after out-gassing. The results indicate that the currents depend strongly on the presence of dissolved gases and water vapor within the polymer. Repeatable results may only be obtained after out-gassing for 24 h.
Keywords :
dielectric properties of solids; environmental testing; insulation testing; ionic conduction in solids; plastics; transients; dielectric conduction; dissolved gases; electrical conduction processes; environmental dependence; field-cleaning; insulating polymers; out-gassing; thermoplastics; time resolved charging currents; water vapor; Conducting materials; Current measurement; Dielectric measurements; Dielectrics and electrical insulation; Gases; Humidity; Impurities; Performance evaluation; Plastic insulation; Polymers;
Journal_Title :
Electrical Insulation, IEEE Transactions on
