人工盐雾污秽试验中盐雾对绝缘子表面盐密的影响  

Influence of Salt Fog on the Surface of Insulator Salt Density in Artificial Salt Fog Contamination Test

作　　者：廖一帆[1,2] 杨宇轩[3] 张福增[2] 何正浩[3] 曾向君[2] 罗兵 涂志飞[3] 王琳瑗 LIAO Yifan;YANG Yuxuan;ZHANG Fuzeng;HE Zhenghao;ZENG Xlanglun;LUO Bing;TU Zhifei;WANG Linyuan(South China University of Technology,Guangzhou 510640,China;China Southern Grid Corp Power Grid Technology Researeh Center,Guangzhou 510080,China;State Key Laboratory of Advanced Electromagnetic Engineering and Technology,Huazhong University of Science and Technology,Wuhan 430074,China)

机构地区：[1]华南理工大学电力学院,广州510640 [2]中国南方电网有限责任公司电网技术研究中心,广州510080 [3]华中科技大学强电磁工程与新技术国家重点实验室,武汉430074

出　　处：《电瓷避雷器》2018年第6期204-209,共6页Insulators and Surge Arresters

摘　　要：在进行固体层法与盐雾法结合的人工盐雾污秽试验时,存在盐雾对绝缘子表面污秽的冲洗作用。当采用均匀升压法进行试验时,这种冲洗作用与加压之前的润湿时间有关;当采用恒压升降法进行试验时,这种冲洗作用与恒压持续时间有关。本文针对盐雾对绝缘子表面污秽的冲洗作用,在盐雾污秽试验过程中的一系列时间点对绝缘子表面污秽进行了检测。结果表明,低导电率盐雾会对绝缘子表面污秽产生冲洗作用,使绝缘子表面的盐密随着喷雾时间的增长而减小;但高导电率盐雾由于一方面盐雾会冲洗绝缘子表面污秽,另一方面盐雾会附着在绝缘子表面补充表面导电物质,两者的影响互补,结果表明,高导电率盐雾对绝缘子表面盐密的影响不明显。In the experiment of artificial salt fog polluted by the combination of the solid layer method and the salt spray method,the cleaning effect of salt spray on the surface contamination of the insulator is existed. The cleaning effect is related to the wetting time before the pressure is applied. In this paper,according to the cleaning effect of salt spray on the surface contamination of insulators,the contamination of insulator surface was detected in a series of time points. The results show that the salt fog of low conductivity will produce cleaning effect on insulator surfaces,the surface of the insulator salt density decreases with the increase of spray time; but the salt fog of high conductivity will clean insulators,on the other hand,salt fog will be attached to the surface of the insulator and the results show that the high conductivity of salt fog on the surface of the insulator salt density is not obvious.

关 键 词：玻璃绝缘子 人工盐雾试验 固体层法 表面盐密 喷雾时间 

分 类 号：TM216[一般工业技术—材料科学与工程]