中国电力 ›› 2019, Vol. 52 ›› Issue (9): 73-78,85.DOI: 10.11930/j.issn.1004-9649.201809100

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高聚物复合绝缘子紫外老化性能研究

申巍1, 高华2, 张鹏1, 左坤1, 田毅3, 杨文博3, 袁正康3   

  1. 1. 国网陕西省电力公司电力科学研究院, 陕西 西安 710054;
    2. 国网宁夏电力有限公司吴忠供电公司, 宁夏 吴忠 751100;
    3. 西安工程大学 电子信息学院, 陕西 西安 710048
  • 收稿日期:2018-09-26 修回日期:2018-12-04 出版日期:2019-09-05 发布日期:2019-09-19
  • 通讯作者: 高华(1993-),男,通信作者,研究生,从事输电线路外绝缘研究,E-mail:2424917250@qq.com
  • 作者简介:申巍(1983-),男,博士,高级工程师,从事电力设备检测与诊断以及绝缘状态评价方面的工作,E-mail:47598910@qq.com
  • 基金资助:
    国网陕西省电力公司电力科学研究院科技项目(2017KJ-095)。

Study on UV Aging Properties of Polymer Composite Insulators

SHEN Wei1, GAO Hua2, ZHANG Peng1, ZUO Kun1, TIAN Yi3, YANG Wenbo3, YUAN Zhenkang3   

  1. 1. State Grid Shaanxi Electric Power Research Institute, Xi'an 710054, China;
    2. State Grid Ningxia Electric Power Company Wuzhong Electric Power Company, Wuzhong 751100, China;
    3. College of Electronics and Information, Xi'an Polytechnic University, Xi'an 710048, China
  • Received:2018-09-26 Revised:2018-12-04 Online:2019-09-05 Published:2019-09-19
  • Supported by:
    This work is supported by Science and Technology Project of State Grid Shaanxi Electric Power Research Institute (No.2017KJ-095).

摘要: 传统高温硫化(HTV)硅橡胶复合绝缘子以其优异的憎水性和憎水迁移性,广泛应用于国内外输电线路上。但随着特高压工程的开展,越来越多的输电线路需要跨越强紫外辐射、强风沙以及鸟啄频发地区,而在这类气候恶劣地区极易造成传统HTV硅橡胶绝缘子外绝缘性能的下降以及材料的损伤。针对这一情况,采用耐紫外线、耐气候性能强,机械性能稳定的高聚物复合绝缘子与传统HTV硅橡胶绝缘子在紫外老化性能方面进行对比,旨在研究高聚物复合绝缘子在西北高原强紫外辐射地区的老化特性。研究结果表明:在短波紫外光(UVC)持续照射下,环氧材料的拉伸强度和硬度均远高于硅橡胶,具有更好的韧性,已达到防鸟啄和耐踩踏的目的,但憎水性相比较于硅橡胶材料仍略有不及,但仍满足户外运行要求。

关键词: 高聚物复合绝缘子, 输电线路, 短波紫外辐照, 硅橡胶, 微观物性, 力学性能

Abstract: The traditional HTV silicone rubber composite insulator is widely used in transmission lines at home and abroad due to its excellent hydrophobicity and hydrophobicity mobility. However, with the development of UHV, more and more transmission lines need to pass through the areas with strong ultraviolet radiation, strong wind & sand and frequent bird pecking, where the harsh climate is prone to cause the decline of the external insulation performance of traditional HTV silicone rubber insulators and the damage of materials. In view of this situation, a comparison is made between the high polymer composite insulators, which has good UV-resistance performance and stable mechanical properties, and the traditional HTV silicone rubber insulators in terms of ultraviolet aging properties. The purpose of this study is to investigate the aging characteristics of polymer composite insulators in the northwest plateau area with strong ultraviolet radiation. The results of the study show that under continuous irradiation of short wave ultraviolet light, the epoxy material has a tensile strength and hardness much better than silicone rubber, and has good toughness that meets the purpose of bird pecking-resistance and treading-resistance; it is slightly inferior to silicone rubber in hydrophobicity, but still meets the requirements of outdoor operation.

Key words: polymer composite insulator, transmission line, short wave ultraviolet, silicone rubber, microphysical property, mechanical property

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