Terminal structure at room temperature insulation type superconducting cable

摘要

PROBLEM TO BE SOLVED: To provide a terminal structure which is suitable for a normal temperature insulation type superconductive cable.SOLUTION: A normal temperature insulation type superconductive cable 200 includes: a conductor part 210 having a superconductive conductor layer 212; a refrigerant piping 213 housing the conductor part 210 and allowing a refrigerant cooling the superconductive conductor layer 212 to circulate therein; and an electric insulation layer 215 formed on an outer periphery of the refrigerant piping 213. A terminal structure 100 of the normal temperature insulation type superconductive cable 200 includes: a porcelain tube 120 which covers an outer periphery of a terminal of the superconductive cable 200 and is arranged so that the conductor part 210 located on a tip of the terminal is exposed to the exterior; a connection part 130 electrically connecting the conductor part 210 (the superconductive conductor layer 212) exposed from the porcelain tube 120 to the exterior with a lead-out conductor 110; and a refrigerant tank 140 which is joined to the refrigerant piping 213 so as to cover an outer periphery of the connection part 130 and houses the connection part 130.