Rejuvenation of retired power cables by heat treatment

Yue Xie, Gang Liu, Yifeng Zhao, Licheng Li, Yoshimichi Ohki

    Research output: Contribution to journalArticlepeer-review

    8 Citations (Scopus)


    A possible rejuvenation method of a power cable insulated with cross-linked polyethylene (XLPE) is presented. Samples with the shape of a film with a thickness of about 0.4 mm was peeled from two retired 110 kV cables and their spare cable. First, the peeled samples were annealed at 85, 90, 95 and 100 °C. Then, the differential scanning calorimetric spectrum, DC current, dielectric spectrum, indenter modulus, and dielectric breakdown were measured for these samples. As a result, we found the possibility that the XLPE insulation in the retired cables can be rejuvenated by giving a thermal treatment at a proper temperature, which is around 95 °C for the present cables.

    Original languageEnglish
    Article number8662254
    Pages (from-to)668-670
    Number of pages3
    JournalIEEE Transactions on Dielectrics and Electrical Insulation
    Issue number2
    Publication statusPublished - 2019 Apr 1


    • cable
    • DC conduction
    • DSC
    • relative permittivity
    • XLPE

    ASJC Scopus subject areas

    • Electrical and Electronic Engineering

    Fingerprint Dive into the research topics of 'Rejuvenation of retired power cables by heat treatment'. Together they form a unique fingerprint.

    Cite this