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Aging Analysis of Semiconductive Silicone Rubber for 10 kV Cold-Shrink Cable Accessories

Author

Listed:
  • Jun Yu

    (Wuxi Guangying Group Co., Ltd., Wuxi 214000, China)

  • Zhijian Zhang

    (State Grid Wuxi Power Supply Company, Wuxi 214000, China)

  • Weifeng Ren

    (Wuxi Guangying Group Co., Ltd., Wuxi 214000, China)

  • Dongxing Yang

    (Wuxi Guangying Group Co., Ltd., Wuxi 214000, China)

  • Dian Wu

    (Wuxi Guangying Group Co., Ltd., Wuxi 214000, China)

  • Zhiqiang Ning

    (Wuxi Guangying Group Co., Ltd., Wuxi 214000, China)

  • Chunhua Fang

    (School of Electrical and New Energy, China Three Gorges University, Yichang 443002, China)

  • Junxiong Wu

    (School of Electrical and New Energy, China Three Gorges University, Yichang 443002, China)

Abstract

This study focuses on the semiconductive silicone rubber of 10 kV cold-shrink accessories. Accelerated thermal aging tests were conducted on the semiconductive silicone rubber, obtaining tensile stress–strain curves at various time points after thermal aging. The corresponding parameters of the Yeoh hyperelastic model were calculated. The results indicate that the initial shear modulus of the samples decreases with the increase in the aging temperature and time. Microscopic morphology, changes in cross-sectional content, thermal residual values, and chemical structure changes of the samples after aging were studied using electron microscopy, EDS testing, TG curves, and Fourier spectra. The results show that the surface roughness of the aged semiconductive silicon rubber increases, the residual values decrease, the thermal stability decreases, the main chain absorbance decreases, the main chain integrity decreases, and the organic functional groups Si-CH 3 and Si(CH 3 ) 2 decrease, leading to a reduction in organic content.

Suggested Citation

  • Jun Yu & Zhijian Zhang & Weifeng Ren & Dongxing Yang & Dian Wu & Zhiqiang Ning & Chunhua Fang & Junxiong Wu, 2024. "Aging Analysis of Semiconductive Silicone Rubber for 10 kV Cold-Shrink Cable Accessories," Energies, MDPI, vol. 17(3), pages 1-18, February.
    • Handle: RePEc:gam:jeners:v:17:y:2024:i:3:p:708-:d:1331558
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    References listed on IDEAS

    as
    1. Hyeseon Lee & Byungsung Lee & Gyurim Han & Yuri Kim & Yongha Kim, 2023. "Development of Methods for an Overhead Cable Health Index Evaluation That Considers Economic Feasibility," Energies, MDPI, vol. 16(20), pages 1-13, October.
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