高电压技术2012，Vol.38Issue(10)：2604-2610,7.
污秽绝缘子表面干区形成的影响因素
Factors Affecting Dry-band Formation on the Surface of Polluted Insulator
摘要
Abstract
The existence of the dry-band is a necessary condition to the occurrence of pollution flashover.The formation of dry-band is affected by a number of factors,such as voltage,pollution type,pollution amount,and weather.Research on the factors affecting dry-band formation not only helps profoundly understand the formation of dry-band,but also enriches and improves the theory of outdoor insulation flashover.In order to study the effect of pollution and fog on the formation of dry-bands,rectangular sheets of glass were used to simulate the insulators in the fog chamber in this paper.The experimental results show that,as the equivalent salt deposit density(ESDD) increases,the dry-band formation time and the dry-band width both decrease;as the non-soluble deposit density(NSDD) increases,the dry-band formation time the dry-band width both increase;as the fog concentration increases,the dry-band formation time remains unchanged but the dry-band width decreases.Consequently,a theory to explain these effects in terms of heat balance is put forward.The research shows that ESDD,NSDD,and fog concentration can affect the formation of dry-band.关键词
污闪/干区/等值附盐密度（ESDD）/等值附灰密度（NSDD）/平板模型/人工污秽试验Key words
pollution flashover/dry-band/equivalent salt deposit density(ESDD)/non-soluble deposit density(NSDD)/flat plate model/artificial pollution test分类
信息技术与安全科学引用本文复制引用
梁飞,MacAlpine Mark,关志成,张若兵..污秽绝缘子表面干区形成的影响因素[J].高电压技术,2012,38(10):2604-2610,7.基金项目
国家重点基础研究发展计划（973计划） （）
