A bushing for gas-insulated switchgear has an electrical conductor, which has a longitudinal axis and which is embedded in an insulating material, and a coated electrode that is arranged coaxially spaced apart from the conductor and that is formed from a plurality of segments.

A bushing for gas-insulated switchgear has an electrical conductor, which has a longitudinal axis and which is embedded in an insulating material, and a coated electrode that is arranged coaxially spaced apart from the conductor and that is formed from a plurality of segments.

A cable includes: plural cable sets each including a pair of core wires, a shielding layer covering the pair of core wires, and an outer layer covering the shielding layer; and plural fixing wires cross-braided outside the cable sets to keep the cable sets in a row position along a lateral direction.

Cable manufacturing method and cable assembly, comprising a transmission wire, a first metal covering layer, an inner insulating layer, a second metal covering layer, an outer insulating layer, an insulating protective layer, and an outer metal layer. The transmission wire extends along a first direction. The first metal covering layer extends along the first direction and covers the transmission wire. The first metal covering layer comprises a first axial end part. The inner insulating layer extends along the first direction and coves the first metal covering layer. The inner insulating layer comprises a second axial end part. The second metal covering layer extends along the first direction and covers the inner insulating layer. The second metal covering layer comprises a third axial end part. The outer insulating layer extends along the first direction and covers the second metal covering layer. The outer insulating layer comprises a fourth axial end part.

An object of the present invention is to provide an improved partial discharge-resistant electrical insulating resin composition that can inhibit deterioration of an insulator due to partial discharge. The partial discharge-resistant electrical insulating resin composition of the present invention comprises boehmite alumina and a resin.

An object of the present invention is to provide an improved partial discharge-resistant electrical insulating resin composition that can inhibit deterioration of an insulator due to partial discharge. The partial discharge-resistant electrical insulating resin composition of the present invention comprises boehmite alumina and a resin.

Polyethylene compositions described herein have a density from about 0.900 g/cm.sup.3 to about 0.950 g/cm.sup.3, a MI (I.sub.2, 190° C., 2.16 kg) from about 0.1 g/10 min to about 10 g/10 min, an MIR (I.sub.21/I.sub.2) from about 25 to about 80, an M.sub.z greater than or equal to about 150,000 g/mol, and either an M.sub.z/M.sub.n ratio greater than or equal to about 8.0, an M.sub.z/M.sub.w ratio greater than or equal to about 2.4, or an (I.sub.2*M.sub.z/M.sub.n) from about 3 to about 100. The polyethylene compositions are useful in wire and cable, tape, and filament applications, and could be produced using a gas phase or slurry phase, preferably gas phase, polymerization process.

Polyethylene compositions described herein have a density from about 0.900 g/cm.sup.3 to about 0.950 g/cm.sup.3, a MI (I.sub.2, 190° C., 2.16 kg) from about 0.1 g/10 min to about 10 g/10 min, an MIR (I.sub.21/I.sub.2) from about 25 to about 80, an M.sub.z greater than or equal to about 150,000 g/mol, and either an M.sub.z/M.sub.n ratio greater than or equal to about 8.0, an M.sub.z/M.sub.w ratio greater than or equal to about 2.4, or an (I.sub.2*M.sub.z/M.sub.n) from about 3 to about 100. The polyethylene compositions are useful in wire and cable, tape, and filament applications, and could be produced using a gas phase or slurry phase, preferably gas phase, polymerization process.

The present disclosure provides insulated electrical conductors, e.g., wires, and methods for producing such insulated electrical conductors to combat partial discharge by enhancing bond strength between the electrical conductor and a base insulating thermoplastic layer (e.g., including a PAEK). Such insulated electrical conductors can include: an electrical conductor; an insulating coating on at least a portion of a surface of the electrical conductor; and an oxide layer between the electrical conductor and the insulating coating. Methods for producing such insulated electrical conductors can involve extrusion of an insulating polymer onto the electrical conductor under ambient atmosphere and a subsequent heat treatment step, which can also be conducted under ambient atmosphere.

A polymer coated conductive ribbon is described herein, wherein the polymer coated conductive ribbon consists essentially of a smooth conductive member having a defined width and thickness substantially enclosed in an insulating polymeric sheath, wherein the insulating polymeric sheath comprises a thermoplastic insulating polymer as a first storage modulus (G′) is above 0.2 MPa at 40° C. and a second storage modulus below 0.05 MPa at 160° C.