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Implementation of Non-Destructive Condition Monitoring Techniques on Low-Voltage Nuclear Cables: II. Thermal Aging of EPR/CSPE Cables

Author

Listed:
  • Ehtasham Mustafa

    (Department of Electrical Engineering, Gomal University, Dera Ismail Khan 29050, Pakistan
    Department of Electric Power Engineering, Budapest University of Technology & Economics, H-1111 Budapest, Hungary)

  • Ramy S. A. Afia

    (Department of Electric Power Engineering, Budapest University of Technology & Economics, H-1111 Budapest, Hungary
    Department of Electrical Power & Machines Engineering, Helwan University, Cairo 11792, Egypt)

  • Aamir Nawaz

    (Department of Electrical Engineering, Gomal University, Dera Ismail Khan 29050, Pakistan)

  • Oumaima Nouini

    (Department of Electric Power Engineering, Budapest University of Technology & Economics, H-1111 Budapest, Hungary)

  • Zoltán Ádám Tamus

    (Department of Electric Power Engineering, Budapest University of Technology & Economics, H-1111 Budapest, Hungary)

Abstract

Determining the aging state of low-voltage nuclear power plant cables using a nondestructive and reliable condition monitoring technique is highly desirable as the cables experience multiple aging stresses during the service period. This paper deals with the implementation and investigation of such nondestructive techniques, which can detect the overall aging state of low-voltage instrumentation and control (I&C) cables, which are subjected to accelerated thermal aging. The dielectric spectroscopy, extended voltage response, and polarization–depolarization current as nondestructive electrical aging techniques were used for the investigation purpose, while the elongation at break was also adopted as a mechanical measurement and for comparison. Prominent variations in the electrical parameters for the insulation and jacket were observed, whereas the elongation at break for both materials also decreased under thermal aging. Based on the electrical techniques, aging markers were selected that showed a strong correlation with the aging and elongation at break, proving the ability of the adopted electrical methods as a nondestructive condition monitoring technique.

Suggested Citation

  • Ehtasham Mustafa & Ramy S. A. Afia & Aamir Nawaz & Oumaima Nouini & Zoltán Ádám Tamus, 2022. "Implementation of Non-Destructive Condition Monitoring Techniques on Low-Voltage Nuclear Cables: II. Thermal Aging of EPR/CSPE Cables," Energies, MDPI, vol. 15(9), pages 1-16, April.
    • Handle: RePEc:gam:jeners:v:15:y:2022:i:9:p:3231-:d:804641
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    References listed on IDEAS

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    1. Simone Vincenzo Suraci & Davide Fabiani & Laura Mazzocchetti & Loris Giorgini, 2020. "Degradation Assessment of Polyethylene-Based Material Through Electrical and Chemical-Physical Analyses," Energies, MDPI, vol. 13(3), pages 1-13, February.
    2. Min Ho Kim & Hyun Jeong Seo & Sang Kyu Lee & Min Chul Lee, 2021. "Influence of Thermal Aging on the Combustion Characteristics of Cables in Nuclear Power Plants," Energies, MDPI, vol. 14(7), pages 1-17, April.
    Full references (including those not matched with items on IDEAS)

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