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Investigation on mechanical extension property of high-temperature superconducting cable at room temperature and 77 K
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1.Shanghai Electric Cable Research InstituteCo Ltd;2.State Grid Shanghai Municipal Electric Power Company

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    Abstract:

    In order to investigate the mechanical extension property of high-temperature superconducting(HTS) cable at room temperature and 77 K, we have respectively studied the mechanical extension properties of 10 m HTS cable and 10 m copper core at room temperature and 77 K. The stress-stain curves and Young modulus of the samples at corresponding temperature have been obtained by experiments. Meanwhile, we have investigated the contraction of 10 m HTS cable and 10 m copper core in a cooling process from room temperature to 77 K with tensile load of 2000 kg. The experimental results obtained in this paper could provide references to the determination of margin of cable-laying.

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[Huang Yijia, Zheng Jian, Chen Zhiyue. Investigation on mechanical extension property of high-temperature superconducting cable at room temperature and 77 K[J]. Rare Metal Materials and Engineering,2020,49(11):3870~3874.]
DOI:10.12442/j. issn.1002-185X.20190974

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History
  • Received:November 20,2019
  • Revised:November 22,2019
  • Adopted:November 29,2019
  • Online: December 09,2020
  • Published: