There is provided a method for manufacturing an electrical wire. The electrical wire includes a rod-like conductor having a shape corresponding to a predetermined wiring route and also having rigidity to enable the rod-like conductor to maintain the shape, and an insulation sheath covering the rod-like conductor. The method includes: preparing a plurality of rod-like preliminary conductors having the rigidity so as to correspond to a plurality of sub routes into which the wiring route is divided; processing at least one of the plurality of preliminary conductors into a shape conforming to the corresponding sub routes; connecting the plurality of preliminary conductors together to form the rod-like conductor; and forming the insulation sheath to cover the rod-like conductor.

A method for laying multiple conductors in a container may be provided. The method may comprise receiving the multiple conductors at a monitoring station; receiving the multiple conductors at a drive; and receiving the multiple conductors at the container.

A sleeve for insulated electrical cables is made by a generative manufacturing process whereby a stack of annular layers of a shapeless or shape-neutral material at a temperature below a melting point of insulation of the cables is formed on a base to build up thereon a tube. The cable bundle is passed through an opening in the base so that the series of layers built up on the base encloses the cable bundle as the tube. Finally, the tube formed by the stack of layers is cured and solidified layers around the electrical cables and is subsequently fixed to the cable bundle.

A method for laying multiple conductors in a container may be provided. The method may comprise receiving the multiple conductors at a monitoring station; receiving the multiple conductors at a drive; and receiving the multiple conductors at the container.

A lead assembly includes a lead with a distal end and a proximal end. The lead includes a plurality of electrodes disposed at the distal end and a plurality of terminals disposed at the proximal end. The lead also defines at least one central lumen and a plurality of outer lumens. The central and outer lumens extend from the proximal end to the distal end such that the plurality of outer lumens extend laterally from the at least one central lumen. The lead further includes a plurality of conductive wires. Each conductive wire couples at least one of the plurality of electrodes electrically to at least one of the plurality of terminals. At least two conductive wires are disposed in each of the plurality of outer lumens.

Provided is a method of manufacturing a downhole cable, the method including, forming a helical shape in an outer circumferential surface of a metal tube, the metal tube having a fiber element housed therein, and stranding a copper element in a helical space formed by the metallic tube. Also provided is a downhole cable including, a metallic tube having a helical space in an outer circumferential surface thereof, wherein the metallic tube has a fiber element housed therein, and a copper element disposed in a helical space formed by the steel tube. Double-tube and multi-tube configurations of the downhole cable are also provided.

Cable foil tape having random or pseudo-random patterns or long pattern lengths of discontinuous metallic shapes and a method for manufacturing such patterned foil tape are provided. In some embodiments, a laser ablation system is used to selectively remove regions or paths in a metallic layer of a foil tape to produce random distributions of randomized shapes, or pseudo-random patterns or long pattern lengths of discontinuous shapes in the metal layer. In some embodiments, the foil tape is double-sided, having a metallic layer on each side of the foil tape, and the laser ablation system is capable of ablating nonconductive pathways into the metallic layer on both sides of the foil tape.

A pressure-sensitive sensor, includes a hollow tubular member including an elastic insulating material; and n electrode wires (n being an integer of not less than 3) arranged away from one another and held inside the tubular member, wherein when an external pressure is applied to the tubular member, the tubular member elastically deforms such that at least two of the n electrode wires contact with each other, and wherein the n electrode wires extend linearly and parallel to a central axis of the tubular member.

Cable foil tape having random or pseudo-random patterns or long pattern lengths of discontinuous metallic shapes and a method for manufacturing such patterned foil tape are provided. In some embodiments, a laser ablation system is used to selectively remove regions or paths in a metallic layer of a foil tape to produce random distributions of randomized shapes, or pseudo-random patterns or long pattern lengths of discontinuous shapes in the metal layer. In some embodiments, the foil tape is double-sided, having a metallic layer on each side of the foil tape, and the laser ablation system is capable of ablating nonconductive pathways into the metallic layer on both sides of the foil tape.

A pressure-sensitive sensor includes a hollow tubular member including an elastic insulating material, and n electrode wires (n being an integer of not less than 3) arranged away from one another and held inside the tubular member. When an external pressure is applied to the tubular member, the tubular member elastically deforms such that at least two of the n electrode wires contact with each other. The n electrode wires extend linearly and parallel to a central axis of the tubular member.