A method in the manufacturing of an insulated electric high voltage DC termination or joint includes the steps of providing an insulated electric high voltage DC cable including an inner conductor; a polymer based insulation system, the polymer based insulation system comprising an insulation layer and a semiconducting layer; and an outer grounding layer; removing the grounding layer and the semiconducting layer in at least one end portion of the high voltage DC cable, thereby exposing the insulation layer in the at least one end portion of the high voltage DC cable; covering the insulation layer of the polymer based insulation system in the at least one end portion of the high voltage DC cable by a cover impermeable to at least one substance present in the insulation layer of the polymer based insulation system in the at least one end portion of the high voltage DC cable in a non-homogenous distribution; subjecting the insulation layer of the polymer based insulation system in the at least one end portion of the high voltage DC cable for a heat treatment procedure, while being covered by the cover, thereby equalizing the concentration of the at least one substance in the insulation layer of the polymer based insulation system in the at least one end portion of the high voltage DC cable; and removing the cover. Instead of using a temporary cover, which is later removed, as the impermeable barrier, a field grading adapter or joint body mounted at the end of the DC cable during the manufacturing of the high voltage DC termination or joint may be used.

An arrangement (20) for covering connecting points of electrical lines (2a-2c) in a moisture tight manner is indicated. The electrical conductors (3a-3d) of at least one first electrical line (1) are connected to the electrical conductors (4a-4f) with at least two further electrical lines (2a-2c). The connecting point is surrounded by a prefabricated housing (10) consisting of a mechanically stable synthetic material. The interior of the housing (10) is completely enclosed by a sealing material produced by injection molding which extends to both sides of the housing (10) up to the lines protruding beyond the housing (1, 2a-2c).

A method in the manufacturing of an insulated electric high voltage DC termination or joint includes providing an insulated electric high voltage DC cable including a high voltage DC conductor, a polymer based insulation system surrounding the high voltage DC conductor, the polymer based insulation system including an insulation layer and a semiconducting layer surrounding the insulation layer, and a grounding layer surrounding the semiconducting layer, removing the grounding layer and the semiconducting layer in at least one end portion of the high voltage DC cable, thereby exposing the insulation layer of the polymer based insulation system in the at least one end portion of the high voltage DC cable, mounting a field grading adapter or joint body in the at least one end portion of the high voltage DC cable, thereby covering the insulation layer of the polymer based insulation system in the at least one end portion of the high voltage DC cable, the field grading adapter or joint body being part of the high voltage DC termination or joint, wherein at least one substance is present in the insulation layer of the polymer based insulation system in the at least one end portion of the high voltage DC cable in a non-homogenous distribution; and subjecting the insulation layer of the polymer based insulation system in the at least one end portion of the high voltage DC cable for a heat treatment procedure, while being covered by the mounted field grading adapter or joint body, thereby equalizing the concentration of the at least one substance in the insulation layer of the polymer based insulation system in the at least one end portion of the high voltage DC cable.

A telecommunications enclosure is provided with reliable sealing around cables entering therein. The enclosure includes one or more cable ports with cable seals made from a material that includes an oil-bleed silicone rubber. The cable ports may also have a convoluted or serrated inner surface configured to engage and support the cable seals.

The present disclosure generally relates to an electrical box, an assembly including such a box and a method for producing same. The electrical box may have a rear wall and opposing side walls made from an injection moldable thermoplastic material, wherein the side walls define a front opening opposite the rear wall. The electrical box may further have at least one cable entry port formed in one of the side walls wherein the at least one cable entry port is provided with at least one cable-clamping closure structure. Still further, the electrical box may have a slot structure comprising at least two retaining slots provided on opposed side walls each formed for receiving and retaining at least one nail guide or mounting bracket, and/or at least two support structures provided on opposed side walls at the front edge thereof wherein each support structure can have at least one round aperture for receiving a cylindrical shaft.

1. A pre-assembled cable assembly for a penetrator body or pothead comprises at least one cable located in a volume of the penetrator body or pothead, the volume around the cable being encapsulated in a low temperature alloy. The cable or cables may include a spliced electrical connection located a volume of the penetrator body or pothead such that the volume around the spliced electrical connection being encapsulated in a low temperature alloy.

A backfilling protection structure for underground installation of a power cable joint, including: a lower casing part forming a base of the backfilling protection structure and configured to be laid on soil, an upper casing part configured to be arranged on top of the lower casing part, wherein the lower casing part and the upper casing part are configured to be attached to each other to form an elongated body, wherein the body defines a channel for receiving a power cable joint, wherein the channel extends through the backfilling protection structure from a first end opening at a first axial end of the backfilling protection structure to a second end opening at a second end of the backfilling protection structure opposite to the first end, wherein the upper casing part is provided with a plurality of top openings distributed along the length of the body and extending into the channel, and a plurality of grids covering a respective top opening, each grid being configured to filter out solid objects larger than a predetermined size from entering through the respective top opening into the channel but enabling sand to enter the channel to bury the power cable joint inside the backfilling protection casing.

A hand-held apparatus for repairing a defect in an outer jacket of an elongated wire or cable includes a portable die and a source of a settable material. The die has a first portion connected by a hinge to a second portion. They cooperatively define a channel in a closed configuration. The source is connected to the channel through an opening between the inlet and outlet. A heating element is adapted to heat the settable material into a flowable condition and a control circuit is adapted to vary the supply of heat. The die is juxtaposed around the jacket near the defect. As the settable material is introduced into the channel, the wire or cable is moved along the channel relative to the die in the closed configuration such that a coating is formed over the defect. When the die is removed, the settable material sets into a solid condition.

A high-voltage device for receiving a high-voltage cable having a conductor designed to conduct an electrical current and a cable insulation surrounding the conductor, includes an insulation and a waveguide. The insulation includes an at least partly transparent or translucent field control unit from a siloxane polymer which is designed to at least partly surround the cable insulation of the high-voltage cable, the siloxane polymer including, in at least one portion of the field control unit, covalently bonded fluorophores and/or dielectric pigments. The waveguide is arranged such that a light signal caused by a partial discharge in the field control unit can be coupled from the field control unit into the waveguide.

A telecommunications enclosure is provided with reliable sealing around cables entering therein. The enclosure includes one or more cable ports with cable seals made from a material that includes an oil-bleed silicone rubber. The cable ports may also have a convoluted or serrated inner surface configured to engage and support the cable seals.