CONNECTION STRUCTURE OF ROOM-TEMPERATURE INSULATION TYPE SUPERCONDUCTING CABLE

摘要

PROBLEM TO BE SOLVED: To provide a connection structure that can absorb thermal shrinkage of a conductor part and is suitable to a room-temperature insulation type superconducting cable.SOLUTION: A room-temperature insulation type superconducting cable 100 includes a conductor part 110 having a superconductor layer 112, a heat insulation pipe 120 which accommodates the conductor part 110 and in which a refrigerant cooling the superconductor layer 112 circulates, and a main electric insulation layer formed outside the heat insulation pipe 120. A connection structure 1 of the superconducting cable 100 includes a connection part 10 which electrically connects the conductor part 110 led out of an end part of the heat insulation pipe 120 and a lead-out conductor 30 to be connected to each other, and a heat insulation container 20 which accommodates the connection part 10. The connection part 10 is constituted by electrically connecting the conductor part 110 and lead-out conductor 30 by a flexible conductor 12 so as to allow the lead-out conductor 30 and heat insulation container 20 to move owing to the thermal shrinkage of the conductor part 110.