The invention relates to a device for manufacturing a sheath (1) for electrical cables (2), in particular a sheath (1) for cables (2) in automobiles, comprising at least one manipulator (9) and a nozzle (10) connected to the manipulator (9) for dispensing a curable liquid plastic material in the course of a generative manufacturing method. The plastic material comprises a radiation-crosslinkable, acrylate-based polymer as the main constituent.

A cable includes a wire and an electromagnetic shielding layer. The electromagnetic shielding layer covers the wire. The electromagnetic shielding layer is in the form of fiber mesh, including a conductive polymer. A manufacturing method includes: feeding the conductive polymer, melting the conductive polymer, extruding the molten conductive polymer to form a plurality of conductive polymer fibers, covering the wire with the plurality of conductive polymer fibers, and curing the plurality of the conductive polymer fibers to form the electromagnetic shielding layer covering the wire. The electromagnetic shielding layer of the cable of the present application replaces current aluminum foil shielding and metal shielding for conventional wires, decreasing interference by electromagnetic waves produced by electromagnetic induction on electronic devices nearby.

A cable includes a wire and an electromagnetic shielding layer. The electromagnetic shielding layer covers the wire. The electromagnetic shielding layer is in the form of fiber mesh, including a conductive polymer. A manufacturing method includes: feeding the conductive polymer, melting the conductive polymer, extruding the molten conductive polymer to form a plurality of conductive polymer fibers, covering the wire with the plurality of conductive polymer fibers, and curing the plurality of the conductive polymer fibers to form the electromagnetic shielding layer covering the wire. The electromagnetic shielding layer of the cable of the present application replaces current aluminum foil shielding and metal shielding for conventional wires, decreasing interference by electromagnetic waves produced by electromagnetic induction on electronic devices nearby.

Disclosed are cable types, including a type THHN cable, the cable types having a reduced surface coefficient of friction, and the method of manufacture thereof, in which the central conductor core and insulating layer are surrounded by a material containing nylon or thermosetting resin. A silicone based pulling lubricant for said cable, or alternatively, erucamide or stearyl erucamide for small cable gauge wire, is incorporated, by alternate methods, with the resin material from which the outer sheath is extruded, and is effective to reduce the required pulling force between the formed cable and a conduit during installation.

Disclosed are cable types, including a type THHN cable, the cable types having a reduced surface coefficient of friction, and the method of manufacture thereof, in which the central conductor core and insulating layer are surrounded by a material containing nylon or thermosetting resin. A silicone based pulling lubricant for said cable, or alternatively, erucamide or stearyl erucamide for small cable gauge wire, is incorporated, by alternate methods, with the resin material from which the outer sheath is extruded, and is effective to reduce the required pulling force between the formed cable and a conduit during installation.

A transmission cable includes a conductor or a bundle of conductors extending along a longitudinal axis, which is circumferentially covered by an insulation layer having an extruded insulation material, whereby the transmission cable passes the electrical type test as specified in Cigré TB496, whereby the rated voltage U.sub.0 is 450 kV or more. The type test includes subjecting the power cable to a DC voltage of 1.85*U.sub.0 during 10 to 15 cycles at negative polarity, followed by a polarity reversal with another 10 to 15 cycles at positive polarity at a DC voltage of 1.85*U.sub.0, followed by additional 2 to 5 cycles during at least 4 to 10 days at positive polarity, and wherein U.sub.0 is 450 kV, or 525 kV, or more.

A transmission cable includes a conductor or a bundle of conductors extending along a longitudinal axis, which is circumferentially covered by an insulation layer having an extruded insulation material, whereby the transmission cable passes the electrical type test as specified in Cigré TB496, whereby the rated voltage U.sub.0 is 450 kV or more. The type test includes subjecting the power cable to a DC voltage of 1.85*U.sub.0 during 10 to 15 cycles at negative polarity, followed by a polarity reversal with another 10 to 15 cycles at positive polarity at a DC voltage of 1.85*U.sub.0, followed by additional 2 to 5 cycles during at least 4 to 10 days at positive polarity, and wherein U.sub.0 is 450 kV, or 525 kV, or more.

A covered electric wire comprises an insulating coating layer on the outer side of a conductor. The conductor comprises a copper alloy consisting of: not less than 0.05% by mass and not more than 2.0% by mass of Fe; not less than 0.02% by mass and not more than 1.0% by mass of Ti; not less than 0% by mass and not more than 0.6% by mass of Mg; and the balance being Cu and impurities. The covered electric wire is a stranded wire comprising a plurality of copper alloy wires stranded together. The plurality of copper alloy wires each have a work hardening coefficient of not less than 0.1 and a wire diameter of not more than 0.5 mm.

A covered electric wire comprises an insulating coating layer on the outer side of a conductor. The conductor comprises a copper alloy consisting of: not less than 0.05% by mass and not more than 2.0% by mass of Fe; not less than 0.02% by mass and not more than 1.0% by mass of Ti; not less than 0% by mass and not more than 0.6% by mass of Mg; and the balance being Cu and impurities. The covered electric wire is a stranded wire comprising a plurality of copper alloy wires stranded together. The plurality of copper alloy wires each have a work hardening coefficient of not less than 0.1 and a wire diameter of not more than 0.5 mm.

A multi-striped electrical cable may be provided. The multi-striped electrical cable may comprise a conductor, an inner layer, an outer layer, and a stripe. The conductor core may comprise a conductor. The inner layer may be around the conductor core and may comprise an inner layer polymer. The outer layer may be around the inner layer. The outer layer may comprise an outer layer polymer, an outer layer colorant, and an outer layer friction reducing additive. The stripe may be disposed on an outermost portion of the outer layer. The stripe may comprise a stripe polymer, a stripe colorant, and a stripe friction reducing additive.