H - Electricity – 02 – G
Patent
H - Electricity
02
G
337/51
H02G 15/04 (2006.01) H02G 15/068 (2006.01)
Patent
CA 1138946
ABSTRACT OF THE DISCLOSURE: A sealing end installation comprising a sealing end on an end of a direct current cable, the cable having a bared conductor end, a first semi- conductive screen around the conductor, a layer of insula- ting material around the screen, a second semi-conductive screen around the insulating layer and a conductive sheath around the second screen. The sheath is stripped back to expose a portion of the second screen, a portion of the first screen and an intermediate length of the insulating layer, the second screen also being stripped back to expose such intermediate length and the layer being stripped back to expose such portion of the first screen. The sealing end comprises a hollow, cylindrical container extending lengthwise of the cable and from adjacent the bared con- ductor end to adjacent the sheath. The inner diameter of the container is larger than the diameter of the cable, preferably at least twice the diameter of the insulating layer, and the container end adjacent the sheath has a liquid tight connection to the sheath. The container is filled with liquid having a resistivity in the range from 108 to 106 ohm-meter, and the liquid is prevented from contacting the bared conductor end. One end of the liquid is conductively connected to the bared conductor end and the other end of the liquid is conductively connected to the sheath, the length of the container, and hence, the liquid, being sufficient to withstand the cable voltage between the conductor and the sheath. The conductor end and the insulating layer may be covered with tapes to prevent contact of the liquid therewith.
353759
Smart & Biggar
Societa Cavi Pirelli S.p.a.
LandOfFree
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