The present invention concerns a power cable, comprising a tension member (1), placed in the centre of said power cable; a first insulation layer (3), the tension member (1) being embedded in the first insulation layer (3); and an outer protective sheath (9); wherein said power cable further comprises one or more first aluminum conductors (4), embedded within the first insulation layer (3). The present invention also concerns a process for producing the inventive power cable, the process comprising the step of extruding a first polymeric insulation layer (3) onto the tension member (1) and the one or more conductors (4) in one single step. Finally, the present invention concerns the use of the inventive power cable, in medium-voltage to high-voltage subsea applications, such as an offshore windmill cable infrastructure or driving of subsea pumps.

An insulating resin composition that allows a reduction in the amount of spatial electric charges accumulated in an insulating layer, whereby dielectric breakdown is less likely to occur. This insulating resin composition 1 contains at least an antioxidant and a base resin including an unmodified polyolefin resin and a modified polyolefin resin modified by a molecule having a polar group. The modified polyolefin resin is modified by at least one selected from unsaturated dicarboxylic anhydride derivatives, unsaturated dicarboxylic anhydrides, and unsaturated dicarboxylic acids, which are each a molecule having a polar group. The base resin has a so-called island-in-sea structure in which a second phase 12 containing the modified polyolefin resin is present in a first phase 11 containing the unmodified polyolefin resin. The second phase has an average diameter of 2 μm or less.

An insulating resin composition that allows a reduction in the amount of spatial electric charges accumulated in an insulating layer, whereby dielectric breakdown is less likely to occur. This insulating resin composition 1 contains at least an antioxidant and a base resin including an unmodified polyolefin resin and a modified polyolefin resin modified by a molecule having a polar group. The modified polyolefin resin is modified by at least one selected from unsaturated dicarboxylic anhydride derivatives, unsaturated dicarboxylic anhydrides, and unsaturated dicarboxylic acids, which are each a molecule having a polar group. The base resin has a so-called island-in-sea structure in which a second phase 12 containing the modified polyolefin resin is present in a first phase 11 containing the unmodified polyolefin resin. The second phase has an average diameter of 2 μm or less.

A power cable comprising: a power core including: a conductor, an insulation system including an inner semiconducting layer arranged around the conductor, an insulation layer arranged around the inner semiconducting layer, and an outer semiconducting layer arranged around the insulation layer, a first metallic water blocking layer arranged concentrically with and around the outer semiconducting layer, a semiconducting polymer layer arranged concentrically with and around the first metallic water blocking layer, and a second metallic water blocking layer arranged concentrically with and around the semiconducting polymer layer; and an outer sheath arranged around the second metallic water blocking layer.

A power cable comprising: a power core including: a conductor, an insulation system including an inner semiconducting layer arranged around the conductor, an insulation layer arranged around the inner semiconducting layer, and an outer semiconducting layer arranged around the insulation layer, a first metallic water blocking layer arranged concentrically with and around the outer semiconducting layer, a semiconducting polymer layer arranged concentrically with and around the first metallic water blocking layer, and a second metallic water blocking layer arranged concentrically with and around the semiconducting polymer layer; and an outer sheath arranged around the second metallic water blocking layer.

The present invention relates to the technical field of wire-rod production equipment, in particular relates to an automatic production line for conductive tape and a manufacturing method for conductive tape, Automatic production of conductive tape brings about high production efficiency and low cost; it not only conducts pretreatment and corresponding detections of the conductors in the production process but also conducts follow-up treatment and corresponding detections of the conductive tape and thus improves the production quality of the conductive tape; in addition, it marks the abnormality position of the conductive tape which is abnormal during the withstand voltage detection so that the operator can accurately find out the abnormal section of the conductive tape.

The present invention relates to the technical field of wire-rod production equipment, in particular relates to an automatic production line for conductive tape and a manufacturing method for conductive tape, Automatic production of conductive tape brings about high production efficiency and low cost; it not only conducts pretreatment and corresponding detections of the conductors in the production process but also conducts follow-up treatment and corresponding detections of the conductive tape and thus improves the production quality of the conductive tape; in addition, it marks the abnormality position of the conductive tape which is abnormal during the withstand voltage detection so that the operator can accurately find out the abnormal section of the conductive tape.

A system and method for degassing cables, such as e.g. High-Voltage Alternative Current (HVAC) or High-Voltage Direct Current (HVDC) cables, where the system has a reel having a perforated cylinder wall and sealing elements adapted to seal off the inner space of the reel, a gas duct in fluid connection with the inner space, and a source of pressurised and heated gas fluidly connected to the gas duct. The method incudes winding a cable onto the reel and blow heated and pressurised gas into the inner space of the reel/cylinder.

An opto-electrical cable may include an opto-electrical cable core and a polymer layer surrounding the opto-electrical cable core. The opto-electrical cable core may include a wire, one or more channels extending longitudinally along the wire, and one or more optical fibers extending within each channel. The opto-electrical cable may be made by a method that includes providing a wire having a channel, providing optical fibers within the channel to form an opto-electrical cable core, and applying a polymer layer around the opto-electrical cable core. A multi-component cable may include one or more electrical conductor cables and one or more opto-electrical cables arranged in a coax, triad, quad configuration, or hepta configuration. Deformable polymer may surround the opto-electrical cables and electrical conductor cables.

An opto-electrical cable may include an opto-electrical cable core and a polymer layer surrounding the opto-electrical cable core. The opto-electrical cable core may include a wire, one or more channels extending longitudinally along the wire, and one or more optical fibers extending within each channel. The opto-electrical cable may be made by a method that includes providing a wire having a channel, providing optical fibers within the channel to form an opto-electrical cable core, and applying a polymer layer around the opto-electrical cable core. A multi-component cable may include one or more electrical conductor cables and one or more opto-electrical cables arranged in a coax, triad, quad configuration, or hepta configuration. Deformable polymer may surround the opto-electrical cables and electrical conductor cables.