污秽地区玻璃绝缘子的选用  

Application of Glass Insulators in Polluted Regions

作　　者：闫东[1] 张亚鹏 卢明[1] 宋伟[3] 姜国庆[3] 张柯[1] 

机构地区：[1]河南电力试验研究院,河南郑州450052 [2]河南超高压运检公司,河南郑州450052 [3]河南省电力公司,河南郑州450052

出　　处：《电瓷避雷器》2005年第5期1-4,共4页Insulators and Surge Arresters

摘　　要：介绍了河南电网2001年1至2月发生大面积污闪的情况。分析了钟罩型绝缘子伞裙下棱槽容易积污,且不易自洁和人工清扫,容易引起污闪。提出了在某些污秽比较严重的地区,a、b、c、d四种形式的玻璃绝缘子不宜在直线串和耐张串上使用,e种形式的玻璃绝缘子可以在任何地区使用,选取原则必须遵从相应地区污秽水平爬距的要求。The pollution flashover is attributed to pollution accumulation at underrids of bell type insulators which is not easily subjected to self-cleaning and manual cleaning. It is suggested that glass insulators of a, b, e, d shapes can not be used at vertical and tension strings in severe polluted regions and that of e shape can be used any where. Creepage distance shall be met for relevant pollution class of environment during selection.

关 键 词：悬式玻璃绝缘子 污秽闪络 绝缘子选用原则 

分 类 号：TM216[一般工业技术—材料科学与工程]