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MECHANICAL PROPERTIES OF POLYMERS FOR ELECTRICAL INSULATING MATERIALS OF SUPERCONDUCTING POWER CABLE.

[In Japanese. / En japonais.]

Author(s) : OHE T.

Type of article: Article

Summary

THE AUTHORS PROPOSE A NEW DESIGN OF SUPERCONDUCTING POWER CABLE WITH AN ELECTRICAL INSULATION STRUCTURE SIMILAR TO THE CONVENTIONAL EXTRUDED CROSS-LINKED POLYETHYLENE CABLE. THE PROMINENT FEATURE OF THE DESIGN IS TO EXPLOIT THE EXCELLENT ELECTRICAL PROPERTIES OF POLYMERS AT CRYOTEMPERATURES AND TO SEPARATE HELIUM COOLANT FROM THE ELECTRICAL INSULATION. THE COOLING TEST SHOWED THAT THE MOST SERIOUS PROBLEM IS A CRACK OF POLYMER INSULATION DUE TO A LARGE DIFFERENCE IN THERMAL CONTRACTION BETWEEN THE POLYMERIC INSULATION AND A CONDUCTOR. AS A RESULT, IT WAS FOUND THAT ETHYLENE-PROPYLENE RUBBER HAS SUPERIOR MECHANICAL PROPERTIES IN THE CRYOGENIC TEMPERATURE REGION.

Details

  • Original title: [In Japanese. / En japonais.]
  • Record ID : 1991-1992
  • Languages: Japanese
  • Source: Cryogenics/ Cryog. Eng. - vol. 25 - n. 3
  • Publication date: 1990
  • Document available for consultation in the library of the IIR headquarters only.

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