Abstract：This paper takes composite insulators in high altitude icing areas with different years from Hunan XueFeng mountain as the research object to analyze their aging characteristics. Firstly, their physical characteristics were evaluated through HC water spray method, static contacting angle test and scanning electron microscope. Secondly, their chemical characteristics were evaluated through Fourier transform infrared spectroscopy method, X-ray photoelectron spectroscopy and broadband dielectric spectroscopy technology. Thirdly, their electrical characteristics were evaluated through dry flashover test in testing laboratory of Chongqing University. Then, based on the probability statistics, the parameters significantly related to the aging years are obtained that can characterize aging characteristics. The results show that, with the increase of aging years, the overall characteristics of composite insulators become worse gradually. When some rough protrusion appears on the surface of silicone rubber, the overall characteristics decreases more rapidly. The initial static contact angle, the relative content of O element and the real part of complex permittivity have a significant correlation with aging years, which can be used as characterization parameters to provide guidance for inferring the aging year of composite insulator in engineering.
张志劲, 张翼, 蒋兴良, 梁田, 胡建林. 自然环境不同年限复合绝缘子硅橡胶材料老化特性表征方法研究[J]. 电工技术学报, 2020, 35(6): 1368-1376.
Zhang Zhijin, Zhang Yi, Jiang Xingliang, Liang Tian, Hu Jianlin. Study on Aging Characterization Methods of Composite Insulators Aging in Natural Environment for Different Years. Transactions of China Electrotechnical Society, 2020, 35(6): 1368-1376.
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2020, Vol. 35 
