END STRUCTURE FOR SUPERCONDUCTING CABLE

• Main Authors: ASHIBE YUICHI, MIMURA TOMOO, KITO YUTAKA, NOGUCHI YUTAKA, HONJO SHOICHI
• Format: Patent
• Language: English
• Published: 10.11.2011
• Subjects: BASIC ELECTRIC ELEMENTS; CABLES; CONDUCTORS; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERATION; INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINEDOPTICAL AND ELECTRIC CABLES OR LINES; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING ORDIELECTRIC PROPERTIES

PROBLEM TO BE SOLVED: To provide an end structure for a superconducting cable in which, when drawing and laying the superconducting cable, a traction tensile force is mainly loaded by a core and can be hardly loaded by a heat insulation tube.SOLUTION: The present invention relates to an end structure including: a plurality of twisted multi-center cores 20; a heat insulation tube 10 which has a double tube structure with a heat insulated space between an inner tube 11 and an outer tube 12 and accommodates the plurality of multi-center cores 20 inside the inner tube 11 with slack; and a core holding member 7 for collectively holding ends of the cores 20. The end structure further includes: a heat insulation tube sealing member 5 communicated to an end of the heat insulation tube 10; and a slack adjusting member 6 abutted and stopped on a distal end face of the heat insulation tube sealing member 5. The core holding member 7 has an end gripping member 71 for gripping an end of a former 21 that each core 20 includes, and a forward/backward moving member 72 which is concatenated with the end gripping members 71 and screwed with the slack adjusting member 6 through the heat insulation tube sealing member 5. By rotating the slack adjusting member 6, the forward/backward moving member 72 is moved back and forth in an axial direction of the heat insulation tube 10 to adjust slack in twisting the cores 20.