H01B1/026

APPARATUS AND METHOD FOR GROWING DISCRETE ULTRALONG CYLINDRICAL SP2 CARBON STRUCTURES

A carbon microtube assembly including a wire substrate with a carbon microtube on the wire substrate where the carbon microtube is a multi-walled structure having two or more concentric layers of sp2 carbon held together by van de Waals forces. The wire may comprise copper, nickel, platinum, or alloys thereof. Also disclosed is the related article comprising the carbon microtube assembly.

Low resistivity tap clamp

Clamps and methods disclosed herein can help to provide efficient electrical communication between a first conductor and a second conductor. An example clamp includes a main housing portion that includes a first surface, a second surface, a body, and an insert, the insert providing electrical communication between the first surface and the second surface; a clamp member; and a fastener.

CARBON-NANOTUBES COPPER COMPOSITE CONDUCTORS

Provided herein are composite conductors, characterized by having copper deposits inside the bulk rather than on the outer surface of a non-metallic conductive porous matrix, such as CNT fabric, as well as a process for obtaining the same. The composite conductors provided herein are also characterized by a low specific weight and a high ampacity compared to metal conductors of similar size and shape.

CONDUCTIVE ELEMENT

Methods for producing a conductive element precursor and a conductive element, such as a tape or wire, are provided. The methods comprise growing a plurality of carbon nanotubes on a metallic substrate and coating carbon nanotubes of the plurality of carbon nanotubes on the metallic substrate with a metallic material.

Copper-coated aluminum wire material and production method therefor

The present disclosure provides a copper-coated aluminum wire material including an aluminum wire material and a copper thin film coating the aluminum wire material that a space factor of the thin copper film is in the range of 0.2% to 4%.

ELECTRICAL SYSTEM RESONANCE DAMPER

Techniques are described to strategically use materials with low DC resistance but high AC resistance, such as stainless steel or electrical steel, like iron alloys such as ferrosilicon (FeSi), to exploit the skin effect phenomenon. By integrating a conductor with a higher skin effect than copper into the cable circuit, the AC resistance is increased, leading to a more damped circuit that maintains the same level of AC losses. This technique allows for the attenuation of AC currents to acceptable levels, enhancing the stability and reliability of the electrical system. The technique takes advantage of the skin effect to provide targeted damping at the resonant frequency, thereby mitigating the risk of resonance without compromising the system's efficiency.

Coaxial cable

A coaxial cable includes an inner conductor, an insulation covering the inner conductor, an outer conductor covering the insulation, and a sheath covering the outer conductor. The inner conductor is a compressed conductor including a central element wire and multiple peripheral element wires surrounding the central element wire. The inner conductor has a compressibility of 23.0% or more and 35.0% or less in percentage. The compressibility is calculated from a sectional area S1 and the sectional area S2 of the compressed conductor by Compressibility=[1S2/S1]. The sectional area S1 is calculated from the outside diameter D of the central element wire and the total number n of the central and peripheral element wires by S1=n0.25D.sup.2. The outside diameter of the insulation is 1.25 mm or more and less than 1.75 mm.

Cable

A cable is provided with a cable core including one or more electric wires, a shield layer provided to cover around the cable core and composed of a laterally wound shield formed by winding metal wire strands helically, and a sheath provided to cover around the shield layer. The metal wire strands are semi-hard copper alloy wires, and P/PD, which is the ratio of the winding pitch P in the laterally wound shield to the pitch diameter PD of the shield layer, is less than 9.9.

Magnet wire and coil

A magnet wire including a conductor and an insulating coating formed on an outer periphery of the conductor. The insulating coating contains a copolymer containing a tetrafluoroethylene unit and a fluoroalkyl vinyl ether unit. The copolymer has a melt flow rate of 10 to 60 g/10 min, and the copolymer has a fluoroalkyl vinyl ether unit content of 6.2 to 8.0% by mass based on a total content of monomer units.

Grounding system, grounding component, and methods of manufacturing and using the same
12488947 · 2025-12-02 · ·

Grounding systems, grounding components, and methods of manufacturing, assembling, and using the same to provide dynamic and adaptable electrical grounding. In one aspect, an adaptable grounding system is provided. The grounding system may include a plurality of grounding components positioned to adaptively engage with an electrical-grounding surface, e.g., facilitating improved electrical contact. The grounding components may be mounted on a first structure which is opposite to a second structure that includes an electrical-grounding surface. The first structure and/or the second structure may be adjustable, e.g., between at least a first configuration, e.g., a non-grounded configuration, and a second configuration, e.g., a grounded configuration. The grounding systems, components, and related methods described herein may be used with different manufacturing systems and processes including those that are electrically-driven.