Accelerated aging of silicone rubber cable terminations

Conference on Electrical Insulation and Dielectric Phenomena, Pub Date : 1989-10-29 DOI:10.1109/CEIDP.1989.69539

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

{"title":"Accelerated aging of silicone rubber cable terminations","authors":"R. Gorur, L. A. Johnson, H.C. Hervig","doi":"10.1109/CEIDP.1989.69539","DOIUrl":null,"url":null,"abstract":"In order to ensure that the silicone rubber used for cable terminations will not track or erode due to dry-band arcing, inorganic fillers, such as alumina trihydrate or silica, are usually added to the polymer. However, in order to satisfy the easy installation requirement, the filler concentration is usually lower than that used for outdoor polymer insulators. The reduced filler loadings have caused premature failures in certain laboratory tests, but the same terminations have been successfully used in the field for over 20 years. In order to determine the factors of this discrepancy, a systematic evaluation in a fog chamber was performed, where the experimental conditions were varied over a wide range. Changes occurring in the polymer were monitored periodically using electron spectroscopy for chemical analysis. It is demonstrated that the experimental conditions play a significant role in the accelerated aging of silicone rubber terminations. Good correlation with experience in the field is obtained when the test parameters allow the material to recover its hydrophobicity.<<ETX>>","PeriodicalId":10719,"journal":{"name":"Conference on Electrical Insulation and Dielectric Phenomena,","volume":"83 1","pages":"155-160"},"PeriodicalIF":0.0000,"publicationDate":"1989-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"6","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Conference on Electrical Insulation and Dielectric Phenomena,","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/CEIDP.1989.69539","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}

引用次数: 6

Abstract

In order to ensure that the silicone rubber used for cable terminations will not track or erode due to dry-band arcing, inorganic fillers, such as alumina trihydrate or silica, are usually added to the polymer. However, in order to satisfy the easy installation requirement, the filler concentration is usually lower than that used for outdoor polymer insulators. The reduced filler loadings have caused premature failures in certain laboratory tests, but the same terminations have been successfully used in the field for over 20 years. In order to determine the factors of this discrepancy, a systematic evaluation in a fog chamber was performed, where the experimental conditions were varied over a wide range. Changes occurring in the polymer were monitored periodically using electron spectroscopy for chemical analysis. It is demonstrated that the experimental conditions play a significant role in the accelerated aging of silicone rubber terminations. Good correlation with experience in the field is obtained when the test parameters allow the material to recover its hydrophobicity.<>

查看原文本刊更多论文

硅橡胶电缆端子老化加速

为了保证用于电缆端子的硅橡胶不会因干带电弧而产生轨迹或腐蚀，通常在聚合物中添加无机填料，如三水合氧化铝或二氧化硅。然而，为了满足易于安装的要求，填料浓度通常低于用于室外聚合物绝缘子的浓度。在某些实验室测试中，减少填料载荷会导致过早失效，但相同的终止方式已经在现场成功使用了20多年。为了确定这种差异的因素，在雾室中进行了系统的评估，其中实验条件在很大范围内变化。利用电子能谱法进行化学分析，定期监测聚合物中发生的变化。实验结果表明，实验条件对硅橡胶端部的加速老化有重要影响。当测试参数允许材料恢复其疏水性时，获得了与现场经验的良好相关性

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Conference on Electrical Insulation and Dielectric Phenomena,

自引率

0.00%

发文量