Terminal structure of superconducting cable and...

H - Electricity – 01 – R

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H01R 4/68 (2006.01) H01B 12/00 (2006.01)

Patent

CA 2481194

The present invention provides a terminal structure of a superconducting cable including a cable core having a superconducting shield layer and an electrical insulation layer. The superconducting shield layer has a radially outer portion provided with by a connection electrode and the superconducting shield layer and the connection electrode are connected together with a low melting solder. The connection electrode has a ground wire connected thereto to ground the superconducting shield layer. For a multiphase cable including a plurality of cable cores, connection electrodes are linked by a conductive coupling member to short circuit superconducting shield layers. The superconducting shield layer can be grounded without impaired insulating property of the electrical insulation layer.

La présente invention fournit une structure terminale de câble supraconducteur qui comprend une âme pourvue d'une couche de blindage supraconductrice et une couche d'isolation électrique. La couche de blindage supraconductrice comporte une partie extérieure radiale accompagnée d'une électrode de raccordement, et cette couche de blindage supraconductrice et l'électrode de raccordement sont réunies par une soudure à bas point de fusion. L'électrode de raccordement est munie d'un fil de mise à la terre de la couche de blindage supraconductrice. En ce qui concerne un câble polyphasé qui comprend de multiples âmes, les électrodes de raccordement sont reliées par une élément d'accouplement conducteur pour court-circuiter les couches de blindage supraconductrices. La couche de blindage supraconductrice peut être mise à la terre sans diminuer les propriétés d'isolation de la couche d'isolation électrique.

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