Patent ID: 8624109

Claim:
A termination unit comprising an end-section of a cable, the end section of the cable defining a central longitudinal axis and comprising end-parts of N electrical phases, an end-part of a neutral conductor and a surrounding thermally insulation envelope adapted to comprising a cooling fluid, the end-parts of the N electrical phases and the end-part of the neutral conductor each comprising at least one electrical conductor and being arranged in the cable concentrically around a core former with a phase 1 located relatively innermost, and phase N relatively outermost in the cable, phase N being surrounded by the neutral conductor, electrical insulation being arranged between neighbouring electrical phases and between phase N and the neutral conductor, and wherein the end-parts of the neutral conductor and the electrical phases each comprise a contacting surface electrically connected to at least one branch current lead to provide an electrical connection, the contacting surfaces each having a longitudinal extension, and being located sequentially along the longitudinal extension of the end-section of the cable, said branch current leads being individually insulated from said thermally insulation envelope by individual electrical insulators, wherein at least one of said electrical connections contains a provision for heat exchange by forced flow cooling therethrough with the cooling fluid, said heat exchange provision being selected from the group of grooves, holes, fins, profiles, and flanges, and wherein a flow path of the cooling fluid includes an annular lumen of the cable in series with said heat exchange provision and additionally a central lumen of the cable surrounded by the annular lumen.