A HIGH VOLTAGE DIRECT CURRENT CABLE TERMINATION APPARATUS

摘要

A direct current cable termination apparatus for terminating a high voltage direct current cable, the apparatus comprises a current-carrying device (102) comprising a terminal portion (104) of the direct current cable, the cable at least comprising an electrical conductor (106), a electrically insulating layer (108) located outside of the electrical conductor, and a conductive shield (110) located outside of the insulating layer and the electrical conductor. The apparatus comprises a housing (111) comprising a tubular outer shell (112) with an inner periphery (114), the outer shell defining a longitudinal axis (x-x) and being formed by an electrically insulating and polymer-containing material. The current-carrying device (102) extends in the axial direction of the outer shell. Along at least a part of the axial extension of the current-carrying device the outer shell (112) extends axially with a space (118) between its inner periphery (114) and the current-carrying device (102). The housing is adapted to separate the space (118) from an atmosphere outside (120) the outer shell, and the space is filled with an electrically insulating fluid (125). The conductive shield (110) terminates inside the outer shell. A geometric field control body (128) formed by an electrically insulating and polymer-containing material is provided inside the outer shell (112), is positioned around the current-carrying device (102) and extends axially along at least a part of the axial extension of the current-carrying device. The geometric field control body adjoins the termination (109) of the conductive shield (110) and contributes to separate the termination (109) of the conductive shield from the space (118). Along at least a part of the axial extension of the geometric field control body the outer shell extends axially with a gap (131 ) between its inner periphery (114) and the geometric field control body (128). An electric installation comprising the above-mentioned apparatus.