An electrical cable includes a conductor assembly having a first conductor, a second conductor and an insulator surrounding the first conductor and the second conductor. The insulator has an outer surface having an RMS roughness of less than 1.0 micrometers. A cable shield provides electrical shielding for the first and second conductors and has a metallized conductive layer on the outer surface of the insulator. A method of manufacturing an electrical cable includes feeding a first conductor and a second conductor to a core extruder, extruding an insulator around the first and second conductors at the core extruder, heating an outer surface of the insulator to lower a roughness profile of the outer surface, and directly apply a conductive layer to the outer surface of the insulator.

A halogen-free resin composition is disclosed comprising a base polymer. In the halogen-free resin composition, the content of a compound including magnesium is equal to or less than 30 parts by mass relative to 100 parts by mass of the base polymer; and the content of a compound including calcium is equal to or less than 30 parts by mass relative to 100 parts by mass of the base polymer. The halogen-free resin composition has an oxygen index of 20 or more. Preferably, the halogen-free resin composition further includes a heavy metal deactivator. Preferably, the base polymer includes a polymer that has a melting point of 120 C.

An insulated wire in which at least one layer of an insulating material is coated around a conductor, wherein the insulated wire has a part in which relative permittivity is different in a length direction or a circumferential direction in an identical coating layer and a method of producing the same, and a rotating electrical machine and a method of producing the same.

A method of forming a plurality of individual heating cables sets includes creating at least a portion of a master cable set by coupling alternating sections of cold and hot cable section, each section of cold cable section having a length twice a model cold cable section length and each section of hot cable section having a length twice a model hot cable section length. A continuous metallic ground sheath is applied about substantially all of the master cable set and a continuous outer jacket is applied about the continuous metallic ground sheath. The master cable set is segmented at defined locations to create a plurality of individual heating cable sets having an overall length of the model hot cable section length plus the model cold cable section length.

Winding wire articles may include a conductor formed into a predefined shape having at least one bend. Additionally, a plurality of cavities may be formed within the conductor. Insulation may also be formed around the conductor.

A structural cable comprising a first conductor, a structural element, and a body with proximal and distal ends that is formed around the first conductor and the structural element, wherein the body is made of a non-conducting material.

Systems and methods for making an electrical cable. The electrical cable comprises: an inner conductor member formed of a conductive material; a dielectric member disposed as a single non-solid layer on the inner conductor member such that the inner conductor member is only partially covered by the dielectric member (the dielectric member being formed of a silica material (a) with a melting point equal to or greater than 1500 F., (b) that does not experiences a transformation from a flexible material to a rigid material when exposed to temperatures less than 1000 F., and (c) that comprises 60% or more silica); and an outer conductor member that is formed of a conductive material, encompasses the dielectric member and the inner conductor member, and is coaxial with the inner conductor member.

A parallel pair cable includes: a pair of insulated wires each of which includes an insulating layer around a conductor; a covering resin layer which is in contact with the pair of insulated wires, and which covers the pair of insulated wires; and a shield layer which is disposed outside the covering resin layer in contact with the covering resin layer, and which includes a metal layer. The pair of insulated wires are in contact with each other and arranged in parallel without being twisted, and the covering resin layer is formed by extrusion of resin.

The present disclosure relates to a telecommunications cable. The telecommunication cable includes a plurality of twisted pairs of insulated wires extending substantially along a longitudinal axis of the telecommunications cable. Each insulated wire of the plurality of twisted pairs of insulated wires includes a conductor and an insulation surrounding the conductor. The insulation includes a first insulation layer defining a plurality of channels disposed around a peripheral surface of the conductor. In addition, the insulation includes a second insulation layer disposed circumferentially around the first insulation layer. Moreover, the insulation includes a third insulation layer disposed circumferentially around the second insulation layer. Furthermore, the telecommunication cable includes a separator and a first layer defining the outer jacket of the telecommunication cable.

In a flame retardant resin composition containing a polyolefin resin, a silicone-based compound blended at a ratio of 1.5 parts by mass or more and 20 parts by mass or less relative to 100 parts by mass of the polyolefin resin, a fatty acid containing compound blended at a ratio of 5 parts by mass or more and 20 parts by mass or less relative to 100 parts by mass of the polyolefin resin, and an inorganic flame retardant blended at a ratio of 5 parts by mass or more and 40 parts by mass or less relative to 100 parts by mass of the polyolefin resin, the decomposition onset temperature of the inorganic flame retardant is lower than the decomposition onset temperature of the silicone-based compound.