Title :
Effect on the electrical properties of fillers in silicone rubber for outdoor insulation
Author :
Koshino, Yukihiro ; Nakajima, Isao ; Umeda, I.
Author_Institution :
Polymer Insulator Div., NGK Insulators Ltd., Nagoya, Japan
Abstract :
The effect on the electrical properties of adding CaCO3 filler to silicone rubbers for outdoor insulation was investigated. Silicone rubber specimens were prepared by adding CaCO3 and ATH as fillers in specified ratio to silicone base gum. The blend ratio of ATH and CaCO3 in silicone rubber specimens was changed from 100:0 to 63:37. Dry arc, tracking and erosion resistance performances, and the water absorption-dielectric properties relation were mainly studied. The results of increasing the amount of CaCO3 were an increase in the rate of water absorption, reduction of dry arc, tracking, erosion resistance performances and dielectric strength after water immersion
Keywords :
dielectric losses; electric strength; silicone rubber; sorption; wear; alumina trihydrate; blend ratio; dielectric strength; erosion resistance; fillers; outdoor insulation; silicone rubber; water absorption; Absorption; Dielectric loss measurement; Dielectrics and electrical insulation; Insulation life; Mechanical factors; Plastic insulation; Polymers; Rubber; Viscosity; Water;
Conference_Titel :
Electrical Insulating Materials, 1998. Proceedings of 1998 International Symposium on
Conference_Location :
Toyohashi
Print_ISBN :
4-88686-050-8
DOI :
10.1109/ISEIM.1998.741783
