湿热环境下脂环族环氧树脂绝缘子和硅橡胶复合绝缘子芯棒-护套界面老化特性研究  

Aging Characteristics of Core Rod-sheath Interface of Alicyclic Epoxy Insulator and Silicone Rubber Composite Insulator Under Humid and Hot Environment

作　　者：孟祥龙 尚瑞琦 樊浩楠 王郑 崔健 刁望园 王黎明 尹芳辉 MENG Xianglong;SHANG Ruiqi;FAN Haonan;WANG Zheng;CUI Jian;DIAO Wangyuan;WANG Liming;YIN Fanghui(Guiyang Bureau of EHV Power Transmission Company of China Southern Power Grid,Guiyang 550081,Guizhou Province,China;Shenzhen International Graduate School,Tsinghua University,Guangdong Province,Shenzhen 518055,China;Chengnan Power Supply Branch,State Grid Tianjin Electric Power Company,Chengnan District,Tianjin 300201,China)

机构地区：[1]中国南方电网有限责任公司超高压输电公司贵阳局,贵州省贵阳市550081 [2]清华大学深圳国际研究生院,广东省深圳市518055 [3]国网天津市电力公司城南供电分公司,天津市城南区300201

出　　处：《电网技术》2023年第1期396-403,共8页Power System Technology

摘　　要：脂环族环氧树脂绝缘子因其优异的电气性能和良好的芯棒-护套界面粘接能力,有效地解决了早期硅橡胶体系复合绝缘子的界面问题,有望广泛应用于输电线路上。目前缺少对环氧树脂复合绝缘子和硅橡胶复合绝缘子芯棒-护套界面吸水老化特性的对比研究。该文对比了脂环族环氧树脂材料和硅橡胶材料的吸水、脱水、透水和透湿特性,并进行了水扩散试验方法,结果表明脂环族环氧树脂绝缘子具有更好的芯棒-护套界面粘接和耐老化性能。该文同时研究了氢氧化铝(alumina trihydrate,ATH)填料对环氧树脂吸水渗水特性的影响,为绝缘子用脂环族环氧树脂配方中ATH粒径和添加量的确定提供了理论支持。Alicyclic epoxy insulators are expected to be widely used in transmission lines because of their excellent electrical properties and good interfacial bonding ability between core rods and sheaths,which effectively solves the interfacial problem of the early silicone rubber composite insulators.At present,there is a lack of comparative studies on the water absorption aging characteristics of the interfaces between the rods and housing in composite insulators made by the epoxy composite insulator and the silicon rubber.This paper compares the water absorption,dehydration,water permeability and moisture permeability of the alicyclic epoxy resin material and the silicone rubber material.The water diffusion test proved that the alicyclic epoxy resin insulator has a better mandrel-sheath interface bonding and aging resistance.Meanwhile,the influence of the ATH filler on water absorption and seepage characteristics of the epoxy resin is studied,which provides a theoretical support for determining the ATH particle sizes and the additive amount in the formulation of the alicyclic epoxy resin for the insulators.

关 键 词：老化特性 脂环族环氧树脂 硅橡胶 界面问题 水扩散实验 

分 类 号：TM721[电气工程—电力系统及自动化]