污湿环境中合成绝缘子憎水性影响因素分析  

Analysis of Factors Effecting the Hydrophobicity of Composite Insulator in Contamination and Humid Conditions

作　　者：蒋兴良[1] 李名加[1] 司马文霞[1] 孙才新[1] 王进华[1] 

机构地区：[1]重庆大学电气工程学院高电压与电工新技术教育部重点实验室,重庆400044

出　　处：《高电压技术》2002年第9期5-6,33,共3页High Voltage Engineering

摘　　要：实验并分析了污湿环境中影响合成绝缘子憎水性的各种因素。结果表明 :酸性物质对憎水性影响较小 ,碱性物质使憎水性减弱 ;污秽层附着于硅橡胶表面的时间越长则憎水性越强 ;ESDD值越高则憎水性越弱 ;NSDD对憎水性影响较小 ;This paper tests and analyzes the factors influencing the hydrophobicity of composite insulators in a contaminated wetting condition. It indicates that acid pollutants has less influences on the hydrophobicity than alkali one, and that the hydrophobicity of pollutant layer is proportional with the time when it attached on a silicon surface. It is contrary to ESDD. NSDD has little effect on the hydrophobicity. The flashover in contaminated wetting condition can not explain the doubtful cause flashover.

关 键 词：污湿环境 合成绝缘子 憎水性 PH值 等值盐密 

分 类 号：TM216[一般工业技术—材料科学与工程]