江苏地区不同年限绝缘子RTV涂层运行性能分析  

Performance Analysis of RTV Coatings on Insulators with Different Service Years in Jiangsu Province

作　　者：毕晓甜 高嵩 刘洋 赵恒 苏伟 BI Xiaotian;GAO Song;LIU Yang;ZHAO Huan;SU Wei(Electric Power Research Institute of Jiangsu Electric Power Corporation under State Grid,Najing 211103,China)

机构地区：[1]国网江苏省电力有限公司电力科学研究院,南京211103

出　　处：《电瓷避雷器》2020年第5期219-224,共6页Insulators and Surge Arresters

基　　金：江苏省公司项目“特殊工业粉尘地区输变电设备外绝缘选型与运维方法研究”(编号:J2019053)。

摘　　要：RTV绝缘子凭借其优良的憎水性能和防污闪特性,广泛应用于我国电力系统输电线路中。选取江苏地区输电线路RTV绝缘子进行试验,从外观检查、厚度测试、附着力、憎水性、憎水迁移性、傅里叶红外光谱等方面分析了不同年限RTV绝缘子涂层的运行性能。结果表明:运行绝缘子RTV涂层喷涂不良率较高,喷涂工艺有待提高;运行4年以内的RTV涂层总体情况良好;运行8~10年的RTV涂层憎水性出现明显下降;运行10年以上的RTV涂层老化程度明显。RTV insulators are widely used in power transmission lines in China due to their excellent hydrophobicity and anti-pollution flashover characteristics. In this paper,RTV insulators of transmission lines in Jiangsu Province have been selected for testing. The performance of RTV insulators coatings with different service years is analyzed from the aspects of appearance inspection,thickness measurement,adhesion,hydrophobicity,hydrophobicity migration and fourier transform infrared spectroscopy. The results show that the defect rate of RTV coatings is high,and the spraying process needs to be improved;the overall situation of RTV coatings is good for insulators operated within 4 years;after 8 ~ 10 years of operation,the hydrophobicity of RTV coatings is obviously decreased;and after 10 years of operation,the aging degree of RTV coatings is obvious.

关 键 词：RTV防污闪涂料 运行年限 表面状态 憎水性 附着力 傅里叶变换红外光谱 

分 类 号：TM216[一般工业技术—材料科学与工程]