广东电力2016，Vol.29Issue(6)：104-108,5.DOI:10.3969/j.issn.1007-290X.2016.06.019
挂网运行复合绝缘子伞裙性能研究
Research on Shed Properties of Network Operating Composite Insulators
摘要
Abstract
In allusion to the problem of external insulation material named HTV of composite insulators be aging with in‐crease of running time under various environment and operation stress conditions ,hardness ,hydrophobicity ,volume resis‐tivity ,surface resistivity and electric strength is respectively measured for shed materials of four running composite insulators and one new insulator as well as thermogravimetric analysis (TGA) and scanning electon microscope (SEM) detection is car‐ried out .Experimental results indicate that after long‐term operation ,shed hardness of the composite insulator increases , hydrophobicity and electric strength decreases ,content of surface organic polymer diminishes and content of inorganic resi‐dues relatively increases .In addition ,it is discovered that heat stability of silicone rubber in nitrogen atmosphere is higher than that in air atmosphere .SEM result shows that diameters of holes on the surface of shed having running for about 10 years are mostly less than 5 μm and diameters of holes on the surface of shed running for over 15 years are larger than 10μm.关键词
复合绝缘子/伞裙材料/热重分析/电镜扫描/硬度/憎水性Key words
composite insulator/shed material/thermogravimetric analysis(TGA)/scanning electon microscope(SEM)/hardness/hydrophobicity分类
信息技术与安全科学引用本文复制引用
陈晓春,李洛琦,吴照国,郑敏聪,王建国,周仲康..挂网运行复合绝缘子伞裙性能研究[J].广东电力,2016,29(6):104-108,5.基金项目
国网安徽省电力公司科技项目 （）
