A cable includes an inner conductor; a dielectric arranged around the inner conductor; an outer conductor annularly arranged around the dielectric; a plurality of tapes around the outer conductor, each tape providing a successive layer over and circumferentially surrounding an underlying tape or the outer conductor, wherein one of the tapes is a conductor; and a jacket encasing the plurality of tapes.

A flexible pipe body and a method of providing electrical continuity are disclosed. The flexible pipe body comprises a first armour layer formed from a helical winding of a metal tape element, a further armour layer formed from a helical winding of a further metal tape element, and at least one intermediate layer between the first and further armour layers, said intermediate layer comprising a helically wound electrically insulating tape element (800.sub.0, 800.sub.1, 800.sub.2, 800.sub.3, 800.sub.4) and a helically wound electrically conductive tape element (810.sub.0, 810.sub.1, 810.sub.2, 810.sub.3, 810.sub.4).

There is provided a method of producing a long body covered with a covering layer, in which the long body includes at least plural electric wires and/or tubes, the covering layer includes at least a specific intermediate layer and a specific outermost layer, the method including at least: covering the long body with the covering layer; and fixing positions of the plural electric wires and/or tubes.

A multi-core cable is provided with a heat detection line including a twisted pair wire composed a pair of heat detecting wires being twisted together, each heat detecting wire including a first conductor and a first insulator covering around the first conductor, and a jacket covering around the twisted pair wire, a plurality of electric wires spirally twisted around the heat detection line, each electric wire including a second conductor and a second insulator covering around the second conductor, and a sheath covering the heat detection line and the plurality of electric wires together. The jacket includes an inner layer, an outer layer, and an intermediate layer provided between the inner layer and the outer layer, and a hardness of the outer layer is higher than a hardness of the inner layer.

Provided is a power cable, and more particularly, to an ultra-high-voltage underground or submarine cable. In detail, the present invention relates to a power cable which is capable of effectively preventing a decrease in dielectric strength due to penetration of copper powder from a copper conductor into an insulating layer, thereby increasing the lifespan thereof, is capable of preventing damage to insulating paper, semiconductor paper, etc. even when repeatedly bent and unfolded, thereby maintaining an interlayer structure formed by winding the insulating paper, the semiconductor paper, etc., and is capable of improving bendability, flexibility, installability, workability, etc.

An apparatus includes a strength member including a core formed of a composite material, and an encapsulation layer disposed around the core. A conductor layer is disposed around the strength member. A coating is disposed on the conductor layer. The coating is formulated to have a solar absorptivity of less than 0.5 at a wavelength of less than 2.5 microns, and a radiative emissivity of greater than 0.5 at a wavelength in a range of 2.5 microns to 15 microns, at an operating temperature in a range of 60 degrees Celsius to 250 degrees Celsius. The coating may have an erosion resistance that is at least 5% greater than an erosion resistance of aluminum or aluminum alloys.

An end structure of a shielded cable 10 includes a core 11, an insulator 12 for covering the core 11, a foil 13 for covering the insulator 12, a braided wire 14 for covering the foil 13, a sheath 15 for covering the braided wire 14 and a sleeve 17 arranged between the braided wire 14 and the foil 13 exposed from an end part of the sheath 15. The end part of the sheath 15 and the sleeve 17 are separated from each other to form a clearance 50.

An offshore submarine cable for an offshore wind farm. The offshore submarine cable has a power capacity between 3 MW and 2.5 GW, at least one weighting element having a density of at least 5 g/cm.sup.3 at 20° C., and at least one armor package.

A cable for power transmission or communication has a core unit having at least one conductor and an insulating layer surrounding each conductor. A first shielding layer surrounds the core unit and is formed of a polymer-carbon composite in which carbon-based particles are dispersed in a matrix of thermosetting polymer material, the first shielding layer having an electrical resistance of 10 Ω.Math.m or less. A metal-based second shielding layer surrounds the first shielding layer.

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.