CONTAMINATION PERFORMANCE OF SILICONE-RUBBER CABLE TERMINATIONS

被引:19
作者
GORUR, RS [1 ]
JOHNSON, LA [1 ]
HERVIG, HC [1 ]
机构
[1] THREE M CO,THREE M ELECT PROD DIV,CABLE ACCESSORIES LAB,AUSTIN,TX
基金
美国国家科学基金会;
关键词
CABLE TERMINATIONS; SILICONE RUBBER; HYDROPHOBICITY; HYDROPHILLIC; TRACKING AND EROSION; DRY BAND ARCING; OUTDOOR INSULATORS; SURFACE POLLUTION;
D O I
10.1109/61.97665
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
This paper describes the results of a systematic study to understand the performance of silicone rubber terminations under contaminated conditions. The terminations evaluated were 15 kV class "cold shrink" type for concentric neutral cables. They were evaluated in a fog chamber where experimental conditions, such as, 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. The dynamic characteristic of the recovery of hydrophobicity exhibited by silicone rubber has an important bearing in the selection of test parameters for accelerated evaluation of these terminations. It has been demonstrated that the recovery of hydrophobicity can be studied using several techniques.
引用
收藏
页码:1366 / 1373
页数:8
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