Division Director´s Message

Author

Devendranath, D. ; Channakeshava, G. Girija ; Venkatesulu, B.

Author_Institution

UHV Res. Lab., Central Power Res. Inst., Hyderabad, India

Volume

22

Issue

7

fYear

2002

fDate

7/1/2002 12:00:00 AM

Firstpage

4

Lastpage

6

Abstract

It is believed that room temperature vulcanizing (RTV) silicon rubber coating is not passive but reacts to its environment. The hydrophobicity of the coating is extremely resilient and can recover under all exposure conditions provided there is adequate rest after removal of the stress (voltage, pollution, UV, etc). The present letter deals with the recovery characteristics of the hydrophobicity of the RTV-coated insulator during a combined continuous voltage and a cyclic low conductive fog application.

Keywords

ageing; insulator contamination; insulator testing; leakage currents; life testing; silicone rubber insulators; vulcanisation; RTV silicon rubber coating; RTV-coated insulator; aging; continuous voltage application; cyclic low conductive fog application; hydrophobicity; leakage current; pollution; recovery characteristics; room temperature vulcanizing; surface charge; Aging; Coatings; IEC standards; Insulation; Insulator testing; Leakage current; Pollution; Rubber; Silicon; Voltage;

fLanguage

English

Journal_Title

Power Engineering Review, IEEE

Publisher

ieee

ISSN

0272-1724

Type

jour

DOI

10.1109/MPER.2002.1016846

Filename

1016846