郑建军,刘涛玮,郭心爱
ZHENG Jianjun,LIU Taowei,GUO Xin′ai

• 1:内蒙古电力(集团)有限责任公司内蒙古电力科学研究院分公司
• 2:内蒙古自治区高电压与绝缘技术企业重点实验室

摘要(Abstract)：

针对某10 kV架空绝缘导线在挂网运行后连续发生多起断线故障的问题，利用外观形貌分析、力学性能检测、显微组织观察及断口微区分析等方法对绝缘导线的断裂机理及原因进行了分析。结果表明，铝绞线与耐张线夹间的接触磨损是导致架空绝缘导线断裂的主要原因。为防止该类断裂再次发生，提出采用包裹软铝带以及在适当部位加装防振鞭和防振锤等建议。
In view of the problem that a 10 kV overhead insulated conductor is frequently cracked after short-term operation,the fracture mechanism and causes of insulated conductor are analyzed by means of appearance analysis, mechanical properties test, microstructure observation and fracture micro area analysis. The results show that the contact wear between aluminum strand and strain clamp is the main reason for the fracture of overhead insulated conductor. To prevent such fracture from recurring, this paper puts forward suggestions of using wrapping soft aluminum tape and installing anti-vibration whip or anti-vibration hammer at appropriate parts.

关键词(KeyWords)： 架空绝缘导线;断裂;磨损;微风振动
overhead insulated conductor;crack;wear;aeolian vibration

Abstract:

Keywords:

基金项目(Foundation): 内蒙古电力（集团）有限责任公司科技项目“输电铁塔球头连接金具断裂机理及疲劳寿命提升关键技术研究”（2022-08）

作者(Author): 郑建军,刘涛玮,郭心爱
ZHENG Jianjun,LIU Taowei,GUO Xin′ai

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