Arrangement for supporting one or several superconductors in the interior of a cryogenic cable

Claim 1

Arrangement for positioning at least one elongated superconductor element in the interior of a pipe pertaining to a concentrical pipe system of a cryogenic cable, having an axis, and providing a conduit means for a low temperature liquid, comprising: an elongated carrier inserted in the pipe for positioning the elongating superconductor element, the carrier having starshaped cross section in a plane transverse to the axis, defining alternating grooves and ridges extending along the axis of the cable but being twisted around the axis of the carrier, there being a plurality of superconductor elements, respectively disposed in the grooves following the twist thereof to establish progressively variations in longitudinal, axial direction in the position of the superconductor element in relation to the axis of the cable, and spacer string wound helically on the carrier and in engagement with the pipe for coaxially positioning the carrier in the pipe while providing flow space for the liquid along the superconductive elements, between these elements and the pipe.