Patent ID: 8754329

Claim:
A direct current cable termination apparatus for terminating a high voltage direct current cable, the apparatus comprises a current-carrying device comprising a terminal portion of the direct current cable, the cable at least comprising an electrical conductor, a circumferential electrically insulating layer located outside of the electrical conductor, and a circumferential conductive shield located outside of the insulating layer and the electrical conductor, a housing comprising a tubular outer shell with an inner periphery, the outer shell defining a longitudinal axis and being formed by an electrically insulating and polymer-containing material, the current-carrying device being adapted to extend in the axial direction of the outer shell, along at least a part of the axial extension of the current-carrying device the outer she extends axially with a space between its inner periphery and the current-carrying device, the housing is adapted to separate the space from an atmosphere outside the outer shell, and the space is filled with an electrically insulating fluid, the outer shell has a first end portion and a second end portion, characterized in that the conductive shield terminates inside the outer shell, in that a first part of the terminal portion of the cable has the circumferential conductive shield, whereas a remainder part of the terminal portion of the cable has the conductive shield removed, the first and remainder parts being located inside the outer shell, in that at least one field grading material layer, comprising a non-linear resistive material, is positioned around the current-carrying device, and in that the at least one field grading material layer, comprising a non-linear resistive material, extends axially inside the outer she and is electrically connected, indirectly or direct, to the conductive shield of the terminal portion of the cable and electrically connected, indirectly or directly, to the electrical conductor of the terminal portion of the cable.