Techniques, systems and articles are described for monitoring electrical equipment of a power grid and predicting likelihood failure events of such electrical equipment. In one example, a cable accessory is configured to couple to an electrical power cable and includes a partial discharge sensor and a communications unit. The partial discharge sensor is configured to detect partial discharge events and output data indicative of the partial discharge events. The communications unit is configured to output event data based at least in part on the partial discharge data.

A cable termination system including a power cable sequentially including a first length of exposed outer semiconductive layer, a length of exposed insulating layer and a length of exposed electric conductor, an electric field control element adapted to be arranged around a portion of said power cable, said electric field control element including: first and second longitudinally spaced semiconducting electrodes; a field grading layer longitudinally extending between the first and second semiconducting electrodes and in electric contact therewith; an insulating layer surrounding the semiconducting electrodes and the field grading layer, wherein the first semiconducting electrode is positioned across a first boundary between the first length of exposed outer semiconductive layer and the length of exposed insulating layer, wherein said second semiconducting electrode is electrically connected with said length of exposed electric conductor, a tubular insulating body adapted to house said power cable and said electric field control element.

The present disclosure relates to the field of cable processing apparatus and discloses a cable radial cutting system and a reaction force cone processing apparatus with the cable radial cutting system. The cable radial cutting system includes a cutting bracket, a planetary gear set, a first driving piece and a second driving piece which are mounted on the cutting bracket, and a cutting tool driven by the planetary gear set to rotate and move radially, where the first driving piece and the second driving piece jointly drive the planetary gear set to rotate.

A wire operating tool, a component for the wire operating tool, a wire cutting and dividing method, and a wire connecting method are provided. The wire operating tool includes a first wire gripping tool; a first rod member connected to the first wire gripping tool and configured to be expanded and contracted in accordance with relative movement of a moving portion with respect to a base portion; a second wire gripping tool; a second rod member connected to the second wire gripping tool; a connecting member that connects the moving portion of the first rod member and the second rod member to each other in a separable manner; and a load bearing member configured to bear a tensile load acting on the first wire gripping tool and the second wire gripping tool when the moving portion of the first rod member and the second rod are in a separate state.

A quad-shield coaxial cable includes an insulator portion configured to encircle an inner conductor portion, an inner conductive foil portion configured to encircle the insulator portion, an inner braided shield portion configured to encircle the inner conductive foil layer portion, an outer braided shield portion configured to encircle the inner braided shield portion, an outer conductive foil portion configured to encircle the outer braided shield portion, and a jacket portion configured to encircle the outer conductive foil portion.

A quad-shield coaxial cable includes an insulator portion configured to encircle an inner conductor portion, an inner conductive foil portion configured to encircle the insulator portion, an inner braided shield portion configured to encircle the inner conductive foil layer portion, an outer braided shield portion configured to encircle the inner braided shield portion, an outer conductive foil portion configured to encircle the outer braided shield portion, and a jacket portion configured to encircle the outer conductive foil portion.

A joint assembly for two high voltage submarine cables (20, 30) of wet or semi wet design includes a water permeable enclosure (10) for receiving the two cables (20, 30) at opposite ends (16, 17) of the enclosure, and at least one joint unit (40, 50, 60) within said enclosure. Each joint unit connects corresponding phase conductors of each of the two cables (20, 30). A method of joining two three-phase high voltage submarine cables (20, 30) and a wet design electrical subsea pre-molded joint (100).

A dry joint for jointing a cable with a wet or semi-wet/semi-dry design to a cable with a wet, semi-wet/semi-dry or dry design and a method of manufacturing a cable dry joint are provided. A cable with a wet or semi-wet/semi-dry design having an end of cable water barrier is also provided. A dry joint water barrier suitable for rendering a joint dry is also provided, where at least one of the jointed cables is of a wet or semi-wet/semi-dry design.

The present invention relates to an interface-forming device (x60) and a method for providing an electrically conductive power transmission interface (x30) on the end surface of a power cable (xOO) having at least two separate wires (x02) being electrically conductive, the cable (xOO) further comprising a reactive compound different from the wires (x02) for providing further features to the power cable (xOO). The method comprises the steps of providing an end section of the power cable (xOO), the end section comprising wires (x02) having wire ends, the end section further having the reactive compound, and successively adding electrically conductive particulates (x67A) onto the end section by bringing the conductive particulates being dispersed in a carrier fluid of a different material than the conductive particulates into contact with the end section. Thereby, cable joining and terminations are achieved of a higher quality.

The present invention relates to an interface-forming device (x60) and a method for providing an electrically conductive power transmission interface (x30) on the end surface of a power cable (xOO) having at least two separate wires (x02) being electrically conductive, the cable (xOO) further comprising a reactive compound different from the wires (x02) for providing further features to the power cable (xOO). The method comprises the steps of providing an end section of the power cable (xOO), the end section comprising wires (x02) having wire ends, the end section further having the reactive compound, and successively adding electrically conductive particulates (x67A) onto the end section by bringing the conductive particulates being dispersed in a carrier fluid of a different material than the conductive particulates into contact with the end section. Thereby, cable joining and terminations are achieved of a higher quality.