Quantitative method for determining surface erosion of silicon rubber for outdoor insulator by the measurement of leakage current under artificial salt fog condition

Conference · Tue Dec 31 04:00:00 EST 1996

OSTI ID:524626

Huh, C S ^[1]

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1. Inha Univ., Inchon (Korea, Republic of). Dept. of Electrical Engineering

This paper describes the performance of widely used polymeric insulating materials for outdoor insulation. Various methods to describe the surface aging of polymer materials such as peak and average of leakage current, the cumulative charge, the weight loss have been investigated, the relationship between surface current, time are plotted and discussed. Result of laboratory evaluation of the contamination performance of silicone rubber has been shown that due to significant material differences, polymer cannot be evaluated using experimental conditions standardized for porcelain and glass. The result of this paper show that weight loss, average current, cumulative charge are better parameter to characterize aging of insulator than the surface transition time, the peak of leakage current, first flashover time.

• OSTI ID: 524626
• Report Number(s): CONF-960614--; ISBN 0-7803-3531-7
• Country of Publication: United States
• Language: English

Related Subjects

24 POWER TRANSMISSION AND DISTRIBUTION
ELECTRICAL INSULATORS
EROSION
LEAKAGE CURRENT
SALTS
SILICONES
SURFACE CONTAMINATION