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    李国锋

    • 教授     博士生导师   硕士生导师
    • 性别:男
    • 毕业院校:大连理工大学
    • 学位:博士
    • 所在单位:电气工程学院
    • 学科:电工理论与新技术
    • 办公地点:A3区32号楼静电与特种电源研究所201室
    • 联系方式:+86-411-84706489(O)
    • 电子邮箱:guofenli@dlut.edu.cn

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    Nondestructive Condition Assessment Techniques for the Ethylene-Propylene Rubber Cable

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    论文类型:期刊论文

    第一作者:Meng, Xiaokai

    通讯作者:Meng, XK (reprint author), Dalian Univ Technol, Fac Elect Informat & Elect Engn, Dalian 116024, Peoples R China.

    合写作者:Wang, Zhiqiang,Li, Guofeng

    发表时间:2017-01-02

    发表刊物:RESEARCH IN NONDESTRUCTIVE EVALUATION

    收录刊物:SCIE、EI

    卷号:28

    期号:1

    页面范围:45-59

    ISSN号:0934-9847

    关键字:Dielectric response; elongation at break retention rate; ethylene propylene rubber; remaining life; time-temperature shift

    摘要:In order to analyze the aging of the active Ethylene-Propylene Rubber (EPR) cable, the dielectric dissipation factor (tan ) was proposed as a nondestructive method of cable insulation condition assessment. Firstly, the EPR marine cable was investigated in this article, and the data of elongation at break retention rate (EAB%) after accelerated aging under different temperatures were used to fit by means of the optimized time-temperature shift factor. The endpoint judgment index of dielectric dissipation factor was deduced when EAB% reached to 50%. Secondly, the cable's lifetime calculated by tan was compared with the EAB% in order to confirm the accuracy of the method. The results show that the lifetime of tan is consistent with EAB% and provides a new method for the rapid evaluation of the EPR cable's remaining life.