Contamination performance of silicone rubber cable terminations

Author

Gorur, R.S. ; Johnson, L.A. ; Hervig, H.C.

Author_Institution

Dept. of Electr. & Comput. Eng., Arizona State Univ., Tempe, AZ, USA

Volume

6

Issue

4

fYear

1991

fDate

10/1/1991 12:00:00 AM

Firstpage

1366

Lastpage

1373

Abstract

The authors describe the results of a systematic study of the performance of silicone rubber terminations under contaminated conditions. The terminations evaluated were of the 15 kV class cold shrink type for concentric neutral cables. They were evaluated in a fog chamber where the electric stress, water conductivity, water flow rate, and the deenergization time between subsequent fog chamber exposures were varied in order to alter the test severity. Changes in the surface hydrophobicity were monitored periodically by analyzing the samples using ESCA (electron spectroscopy for chemical analysis), SEM (scanning electron microscopy), and contact angle measuring techniques. The results indicate that the experimental conditions play a significant role in the outcome of the tests. It was demonstrated that the recovery of hydrophobicity can be studied by using several techniques

Keywords

electric connectors; electron spectroscopy; insulation testing; rubber; scanning electron microscope examination of materials; silicones; 15 kV; ESCA; SEM; cold shrink; concentric neutral cables; contact angle measuring techniques; contamination conditions; deenergization time; electric stress; electron spectroscopy for chemical analysis; fog chamber; scanning electron microscopy; silicone rubber cable terminations; surface hydrophobicity; water conductivity; water flow rate; Cables; Chemical analysis; Conductivity; Contamination; Rubber; Scanning electron microscopy; Spectroscopy; Stress; Testing; Water pollution;

fLanguage

English

Journal_Title

Power Delivery, IEEE Transactions on

Publisher

ieee

ISSN

0885-8977

Type

jour

DOI

10.1109/61.97665

Filename

97665