A waterproofing structure for shielded cable includes: a shielded cable including one or more cables and a braided wire serving as a shielding member and covering the cables; and a grommet serving as a waterproofing member covering a waterproofed portion of the braided wire. Thermoplastic resins serving as waterproofing fillers are respectively disposed on an inner side and an outer side of the waterproofed portion of the braided wire. The gaps between the plurality of strands of the braided wire and the gap between the braided wire and the small-diameter cylindrical portion of the grommet are filled with the thermoplastic resin melted by heating.

The present disclosure relates to an armoured cable (10) for transporting alternate current comprising: at least one core (12), each core comprising an electric conductor (121); at least one metallic screen (126) surrounding the at least one core (12); an armour (16), surrounding the at least one metallic screen, comprising an inner layer (16a) of armour wires and an outer layer (16b) of armour wires, at least part of the armour wires of the inner layer (16a) and at least part of the armour wires of outer layer (16b) comprising a ferromagnetic material; and a separating layer between the inner layer (16a) of armour wires and the outer layer (16b) of armour wires. The separating layer has a thickness of at least 1 mm. The present disclosure also relates to a method for reducing losses in said armoured cable and to a method for improving the performances of said armoured cable.

The present disclosure relates to an armoured cable (10) for transporting alternate current comprising: at least one core (12), each core comprising an electric conductor (121); at least one metallic screen (126) surrounding the at least one core (12); an armour (16), surrounding the at least one metallic screen, comprising an inner layer (16a) of armour wires and an outer layer (16b) of armour wires, at least part of the armour wires of the inner layer (16a) and at least part of the armour wires of outer layer (16b) comprising a ferromagnetic material; and a separating layer between the inner layer (16a) of armour wires and the outer layer (16b) of armour wires. The separating layer has a thickness of at least 1 mm. The present disclosure also relates to a method for reducing losses in said armoured cable and to a method for improving the performances of said armoured cable.

The present invention disclosure relates to an intermediate connection structure of a power cable, which is capable of reducing heating of a connecting part of conductors of a pair of power cables connected through a joint box, enhancing a connected state of the conductors, and minimizing a diameter of the conductor connection part.

The present disclosure relates to a power cable joint system capable of minimizing expansion, deformation or damage of a metal sheath restoration layer, which is formed of a material such as lead sheath, due to internal expansion due to heat generated in an intermediate connection part of the power cable joint system.

The invention relates to power cable polymer composition which comprises a thermoplastic polyethylene having a chlorine content which is less than X, wherein X is 10 ppm, a power cable, for example, a high voltage direct current (HV DC), a power cable polymer insulation, use of a polymer composition for producing a layer of a power cable, and a process for producing a power cable.

A power cable has a cable core with at least one conductor with an insulating system and a water barrier surrounding the cable core. The water barrier has a helically wound strength bearing layer interconnected by a low melting point material.

Systems and methods for electrical connection monitoring using cable shielding are described. For example, a system may include a high-voltage power supply; a first high-voltage cable including a first conductor connected to the high-voltage power supply and a first shielding that encircles the first conductor; a second high-voltage cable including a second conductor connected to the high-voltage power supply and a second shielding that encircles the second conductor; and a continuity detection circuit connected to the first shielding and to the second shielding, wherein the second shielding is connected to the first shielding to form a loop with the continuity detection circuit.

A conductor shielding termination assembly can include a housing tube defining an inner diameter housing channel therethrough. The housing tube can be made of conductive material. The assembly can include a shoulder bushing configured to insert within the inner diameter housing channel of the housing tube. The shoulder bushing can define an inner diameter bushing channel sized to receive an unshielded portion of a conductor. The assembly can include a clamping assembly configured to clamp around the housing tube and/or the conductor to axially lock the housing tube and the conductor and to trap a shielding termination between the housing tube and the clamping assembly. The clamping assembly can form a clamping inner diameter channel sized to receive a shielded portion of the conductor.

A conductor shielding termination assembly can include a housing tube defining an inner diameter housing channel therethrough. The housing tube can be made of conductive material. The assembly can include a shoulder bushing configured to insert within the inner diameter housing channel of the housing tube. The shoulder bushing can define an inner diameter bushing channel sized to receive an unshielded portion of a conductor. The assembly can include a clamping assembly configured to clamp around the housing tube and/or the conductor to axially lock the housing tube and the conductor and to trap a shielding termination between the housing tube and the clamping assembly. The clamping assembly can form a clamping inner diameter channel sized to receive a shielded portion of the conductor.