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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 superconductin

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.

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What is claimed is: 1. A terminal structure of a superconducting cable, said superconducting cable including a cable core, said cable core having a superconductor layer, an electrical insulation layer, and a superconducting shield layer, said terminal structure of said superconducting cable compris

What is claimed is: 1. A terminal structure of a superconducting cable, said superconducting cable including a cable core, said cable core having a superconductor layer, an electrical insulation layer, and a superconducting shield layer, said terminal structure of said superconducting cable comprising: a connection electrode arranged on said superconducting shield layer at a radially outer portion of said superconducting shield layer; wherein said connection electrode and said superconducting shield layer are connected with a low melting solder; and wherein said electrical insulation layer is arranged between said superconductor layer and said superconducting shield layer. 2. The terminal structure of said superconducting cable of claim 1, wherein said low melting solder has a melting point of at least 60° C. and at most 120° C. 3. The terminal structure of said superconducting cable of claim 1, wherein said connection electrode is thermally insulated from said electrical insulation layer. 4. The terminal structure of said superconducting cable of claim 1, wherein said connection electrode has a ground wire attached thereto. 5. The terminal structure of said superconducting cable of claim 1, wherein said superconducting cable is a multiphase cable comprising a plurality of cable cores including said cable core; wherein each cable core of the plurality of cable cores comprises a respective superconductor layer, a respective electrical insulation layer, and a respective superconducting shield layer; wherein said terminal structure of said superconducting cable further comprises a plurality of connection electrodes including said connection electrode; wherein each connection electrode of the plurality of connection electrodes is arranged on a corresponding superconducting shield layer of a corresponding cable core of the plurality of cable cores at a radially outer portion of said corresponding superconducting shield layer; and wherein each connection electrode of the plurality of connection electrodes is linked to another connection electrode of the plurality of connection electrodes by a conductive coupling member. 6. The terminal structure of said superconducting cable of claim 5, wherein said conductive coupling member is formed of a braided material. 7. A superconducting cable line, comprising: a terminal structure of a superconducting cable, said superconducting cable including a cable core, said cable core having a superconductor layer, an electrical insulation layer, and a superconducting shield layer, said terminal structure of said superconducting cable comprising: a connection electrode arranged on said superconducting shield layer at a radially outer portion of said superconducting shield layer; wherein said connection electrode and said superconducting shield layer are connected with a low melting solder; and wherein said electrical insulation layer is arranged between said superconductor layer and said superconducting shield layer.