船用低压电力电缆绝缘材料老化状态研究与寿命评估  

Study on Ageing State and Life Evaluation of Marine Low Voltage Power Cable Insulation Materials

作　　者：刘敏[1] 王志强[1] 王宁会[1] 李国锋[1] 孟晓凯[1] Liu Min;Wang Zhiqiang;Wang Ninghui;Li Guofeng;Meng Xiaokai(School of Electrical Engineering, Dalian University of Technology, Dalian 116024, China)

机构地区：[1]大连理工大学电气工程学院,辽宁大连116024

出　　处：《绝缘材料》2017年第12期48-53,59,共7页Insulating Materials

基　　金：国家高技术研究发展计划(863计划)项目(2014DFR50880A);辽宁省博士科研启动基金(20131022);中央高校基本科研业务费专项资金(DUT11RC(3)08-2)

摘　　要：通过在不同老化温度和不同老化时间下对电缆试样进行加速热老化,测试研究电缆绝缘材料的老化状态,并从介质损耗因数和断裂伸长率两个指标对其寿命进行评估。结果表明:使用介质损耗因数tanδ评估法与采用断裂伸长率计算寿命的方法结果基本一致,为电缆的绝缘状态评估与寿命检测提供了一种无损快速的检测方法。The cable insulation material samples were conducted accelerated ageing experiments at differ- ent ageing temperatures and different ageing time, and the life of cable insulation materials was evaluat- ed from the two indexes of dielectric loss factor （tanδ） and elongation at break （EAB）. The results show that the life calculated by the two methods is basically the same, which provides a nondestructive and fast detection method for insulation condition evaluation and life detection of cable.

关 键 词：电缆绝缘 寿命评估 热老化实验 介质损耗因数 

分 类 号：TM246[一般工业技术—材料科学与工程]