Patent ID: 8134072

Claim:
A superconductive cable comprising: a superconductive conductor, a dielectric enclosing said superconductive conductor; and a superconductive screen arranged over said dielectric, acting as a spacer, an intermediate metal tube, which is closed all around over its entire length, arranged over the screen; and a cryostat, which has a metal inner tube a metal outer tube and superinsulation arranged between them, encloses said intermediate metal tube, with a gap between said metal inner tube of said cryostat and said intermediate metal tube, said gap for conveying a cooling medium; wherein an impregnating medium, which is fluid at room temperature, and to which a constant pressure is applied, is introduced as an impregnating medium for said dielectric into a space between said superconductive conductor and said intermediate tube, and wherein at least one refrigeration unit, for supplying said cooling medium, is connected to said gap between said cryostat and said intermediate metal tube.