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

fYear

1998

fDate

27-30 Sep 1998

Firstpage

465

Lastpage

468

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Insulating Materials, 1998. Proceedings of 1998 International Symposium on

Conference_Location

Toyohashi

Print_ISBN

4-88686-050-8

Type

conf

DOI

10.1109/ISEIM.1998.741783

Filename

741783