热老化进程中配电电缆试验分析  

作　　者：辛忠良 冯志敏 付晓勇 李建树 王星 

机构地区：[1]国网河南省电力公司郑州供电公司,郑州450007

出　　处：《科技创新与应用》2025年第6期69-72,共4页Technology Innovation and Application

摘　　要：在实验室条件下,通过加速热老化试验完成老化电缆试样的制备,并在不同老化阶段分别开展介电性质以及接地电流测试,分析研究各测试量随热老化加深的变化规律。结果表明,电缆电容及介质损耗在热老化进程中呈加快趋势增长;热老化使电缆接地电流幅值增大,同时引起以3、9和13次谐波为主的谐波畸变。Under laboratory conditions,the preparation of aged cable samples was completed through accelerated thermal aging tests,and the dielectric properties and ground current tests were carried out at different aging stages,and the change laws of each test quantity with the deepening of thermal aging were analyzed and studied.The results show that the cable capacitance and dielectric loss increase rapidly during the thermal aging process;thermal aging increases the amplitude of the cable ground current and causes harmonic distortion mainly of the 3rd,9th and 13th harmonics.

关 键 词：配电电缆 热老化 介电特性 接地电流 谐波 

分 类 号：TM247[一般工业技术—材料科学与工程]