A cable has a wire bundle composed of a number of individual wires and an insulating sheath. The wire bundle is guided along a longitudinal center axis by a shaping element in order to guide and to specify the cross-sectional shape of the wire bundle in a feeding region immediately upstream of an extruder. The shaping element rotates about the longitudinal center axis, and the insulating sheath is subsequently applied to the wire bundle by the extruder.

A method of manufacturing a coaxial cable includes: providing an intermediate construction for a coaxial cable comprising an inner conductor, a dielectric layer circumferentially surrounding the inner conductor, and a smooth outer conductor circumferentially surrounding and adhered to the dielectric layer; and impressing corrugations into the outer conductor and corresponding protrusions in the dielectric layer.

The present invention relates to manufacturing of litz wire. In order to provide thinner litz wires, a system (100) for manufacturing litz wire is provided, the system comprising a provision unit (102) and a conversion unit (104). The provision unit is configured to provide a strand (106) with a plurality (108) of thin conductive wires (110) embedded in a matrix (112), which matrix is having first characteristics comprising metallic connection of the conductive wires and the matrix, and comprising electrical conductivity for electrically connecting of the conductive wires and the matrix. The conversion unit is configured to convert at least a part of the matrix into material (114) having second characteristics comprising electrical insulation for providing at least a part of the plurality of thin conductive wires with an electrical insulation.

A high-power low-resistance electromechanical cable constructed of a conductor core comprising a plurality of conductors surrounded by an outer insulating jacket and with each conductor having a plurality of wires that are surrounded by an insulating jacket. The wires can be copper or other conductive wires. The insulating jacket surrounding each set of wires or each conductor can be comprised of ethylene tetrafluoroethylene, polytetrafluoroethylene, polytetrafluoroethylene tape, perfluoroalkoxyalkane, fluorinated ethylene propylene or a combination of materials. A first layer of a plurality of strength members is wrapped around the outer insulating jacket. A second layer of a plurality of strength members may be wrapped around the first layer of a plurality of strength members. The first and/or second layer of strength members can be made of single wires, synthetic fiber strands multi-wire strands, or rope. If either or both layers are made up of synthetic fiber, then the synthetic fibers may be surrounding and encapsulated by an additional insulating and protective layer.

A graphene coated silver alloy wire is provided. The composite wire includes a core wire and one to three layers of graphene covering surfaces of the core wire. The core wire is made of a silver-based alloy including 2 to 6 weight percent of palladium. The core wire may be optionally added with 0.01 to 10 weight percent of gold. The invention also includes a manufacturing method immersing the core wire into a solution including graphene oxide and applying bias to the core wire for manufacturing the graphene coated silver alloy wire.

A bus bar (1) comprises: a laminated conductive wire (20) formed by arranging side by side in the longitudinal direction a first plate-shaped conductive wire (21) formed by spirally winding stripe conductors (11, 12) mutually adjacent in the width direction while bringing the opposing inner surfaces closer to each other, and a second plate-shaped conductive wire (22) formed by spirally winding the stripe conductors (11, 12) in the direction opposite the direction of the first conductive wire (21) while bringing the opposing inner surfaces closer to each other, and overlapping these wires (21, 22) so that the outer surfaces in the width direction face each other; and terminals (30) joined to the first conductive wire (21) and the second conductive wire (22) at both ends of the laminated conductive wire (20).

Described is a high-temperature superconductor (HTS) cable, comprising a plurality of HTS tapes, wherein all or part of a cross-section of at least one of the HTS tapes are removed to reduce the current carrying capacity of the HTS tape. Also described is a method for shaping the current density of a high-temperature superconductor (HTS) cable, wherein the HTS current density is carried by HTS tapes, and wherein the method comprises selective mechanical removal of all or part of the cross section of one or more of HTS tapes.

An electric wire cutting equipment and a synchronous wire saw are provided. The electric wire cutting equipment includes a synchronization mechanism, a fixing frame, rotating wheels, a driving motor, and a cutting wire. The synchronization mechanism is arranged on the fixing frame. The rotating wheels include a driving wheel and a first driven wheel arranged opposite to each other on the synchronization mechanism. The driving wheel is transmission-connected to an output end of the driving motor. The cutting wire is wound between the driving wheel and the first driven wheel. The synchronization mechanism drives the cutting wire to move along the fixing frame. The synchronous wire saw includes a support frame and the electric wire cutting equipment rotationally connected to the fixing frame.

An insulated wire includes a core body comprising electrically-conductive material. The insulated wire also includes a permanent coating comprising electrically-insulating material and disposed on the core body to electrically insulate the core body. The insulated wire further includes a removable coating disposed on the permanent coating to provide the core body and the permanent coating with structural support during cutting of the core body and the permanent coating to the desired length.