A terminal includes a conductor connecting part, a terminal connecting part, and a graphene film. When a first metal material and a third metal material forming a conductor of an electric wire have different ionization tendencies, the graphene film is provided to be arranged between a first surface and the conductor of the electric wire when the conductor of the electric wire is electrically connected to the conductor connecting part. When a second metal material and a fourth metal material forming a surface of an opposite terminal have different ionization tendencies, the graphene film is provided to be arranged between a second surface and the surface of the opposite terminal when the opposite terminal is electrically connected to the terminal connecting part.

A cable includes insulated conductors arranged in a spaced apart generally coplanar configuration. A jacket encapsulates the insulated conductors. The jacket has a generally rounded rectangular cross-section, at least one spline along a minor edge of the jacket, and at least one channel along a major edge. An armor layer is applied about the jacket.

Provided is a thermal-insulated multi-walled pipe for superconducting power transmission that highly prevents intrusion of external heat due to radiation and has excellent thermal insulation property without using a superinsulation. A thermal-insulated multi-walled pipe for superconducting power transmission comprises: a superconducting cable; and a multi-walled pipe that houses the superconducting cable, wherein the multi-walled pipe is composed of a plurality of straight pipes, and at least one of the plurality of straight pipes has, at a surface thereof, a zinc or zinc alloy-plated layer having an average spangle size of 2.0 mm or less.

Provided is an ATF oil and corona-resistant enameled wire for electric vehicle motors, belonging to the insulating materials field. The ATF oil and corona-resistant enameled wire for electric vehicle motors comprises a copper conductor and an insulating layer, wherein said insulating layer from inside to outside is composed of ATF oil and corona-resistant protective film, corona-resistant PAI film, ATF oil and corona-resistant protective film, corona-resistant PAI film, ATF oil and corona-resistant protective film. The ATF oil and corona resistant enameled wire of this disclosure is suitable for the preparation of oil-cooled electric vehicle motor loose winding coil due to the advantages of good manufacturability, excellent ATF oil and corona resistance, and low manufacturing cost.

A terminal-equipped electric wire includes: an electric wire in which a conductor is covered by an insulating cover; a crimp terminal including a conductor crimping portion crimped to the conductor exposed from an end of the insulating cover, a cover crimping portion crimped to the insulating cover, and an intermediate portion that couples the conductor crimping portion and the cover crimping portion and in which the conductor is exposed; and a anticorrosive material covering at least the conductor exposed in the intermediate portion. The intermediate portion has grooves that are provided on a surface on the conductor side and formed from both end portions in a circumferential direction such that each of the grooves is formed toward a center side in the circumferential direction.

A method for manufacturing a terminal-equipped electric wire includes a step of crimping a first terminal to one end of an electric wire, a step of crimping a second terminal to the other end of the electric wire with a tubular seal member, a first waterproofing step of providing, at the one end of the electric wire, an anticorrosion member that covers an element wire bundle of the electric wire, and a second waterproofing step of providing, at the other end of the electric wire, a sealing member so as to fill gaps between conductive element wires of the element wire bundle in a tubular insulating sheath. The second waterproofing step is performed after the first waterproofing step is performed.

A water blocking layer/sheathing for subsea power cables made from a CuNiSi-alloy.

A method can include extruding an electrically insulating elastomeric compound about a conductor where the electrically insulating elastomeric compound includes ethylene propylene diene monomer (M-class) rubber (EPDM) and an alkane-based peroxide that generates radicals that form decomposition products; cross-linking the EPDM via radical polymerization to form an electrically insulating layer about the conductor; heating the cross-linked EPDM to at least 55 degrees C. to reduce the concentration of the decomposition products in the electrically insulating layer; and disposing a gas barrier layer about the electrically insulating layer.

A power and communications cable may include an electromagnetic waveguide, an inner metallic tubular surrounding the electromagnetic waveguide, an electrically conductive material surrounding the inner metallic tubular, an electrically insulating material surrounding the electrically conductive material, and an outer metallic tubular resistant to corrosion and abrasion surrounding the electrically insulating layer. The example system may include an electrical device locatable in the wellbore and coupleable to the cable and a control unit coupleable to the cable and operable to supply power to and communicate with the electrical device via the power and communications cable.

Here described is the production of wires, strands, rigid ropes and flexible ropes having high electric, physico-chemical and environmental performances for the purposes of electrical conduction, enhanced through multilayer deposition containing graphene, and a method for their preparation. Each single wire, strand, rope and/or cable according to the present invention is produced through electrochemical deposition processes and/or of a different nature, in order to potentiate electric, physico-chemical and environmental performances (in particular electric conductivity) and the resistance to the thermal and corrosive actions of said wire, strand, rope and/or cable, facilitating furthermore subsequent manufacturing processes and making the connection of cable terminals and/or anchors less critical. Said wire, strand, rope and/or cable obtained at the end of the manufacturing process can be used bare for the purposes of electrical conduction or constitute the core of insulated cables to be used in the automotive and energy sectors.