Superconducting cable line

摘要

In a superconducting cable line in which a superconducting cable is connected to a terminal connecting part or an intermediate connecting part, an offset part in which a superconducting cable is laid in a curved-shape is provided near the terminal connecting part or the intermediate connecting part. Further, when it is assumed that the superconducting cable is movable in the offset part, an external tube of the superconducting cable is fixed such that a maximum amplitude part which maximizes the amount of movement of the superconducting cable following thermal expansion and contraction of a cable core becomes immovable.

主权项

1. A superconducting cable line in which a superconducting cable, being formed by housing a cable core in a thermal insulation tube, is laid and connected to a terminal connecting part or an intermediate connecting part, wherein:
the cable core comprises a superconducting conductor layer, and the thermal insulation tube comprises an external tube and an internal tube, the superconducting cable line comprsing: an offset part in which the superconducting cable is laid in a curved-shape so as to absorb a thermal expansion and contraction length of the cable core, the offset part being provided near the terminal connecting part or the intermediate connecting part; and a fixed part in which a part of the external tube in the offset part is immovably fixed by a fixing member which secures the part of the external tube inside, wherein the fixed part exists in a region selected from a group consisting of: a region which includes a point on a curve of an arc apart farthest in a vertical direction with respect to a line connecting inflection points of the curve forming ends of the arc forming the offset part, and a region between the inflection points and the point on the curve, and wherein the supercondcting cable deforms upon cooling, and after the cable core and the internal tube move to an inside of a bend and abut on the external tube, the cable core and the internal tube are pressed against the external tube.