The invention provides a polymer composition comprising a low density polyethylene (LDPE); polypropylene (PP) and a compatibiliser. The invention also relates to cables comprising said polymer composition and the use of the polymer composition in the manufacture of an insulation layer of cable.

The invention provides a polymer composition comprising a low density polyethylene (LDPE); polypropylene (PP) and a compatibiliser. The invention also relates to cables comprising said polymer composition and the use of the polymer composition in the manufacture of an insulation layer of cable.

Systems and methods for forming insulation on magnet wire are provided. An extruder that includes one or more rotating screws may receive a plurality of ingredients for a polymeric insulation material and process the plurality of ingredients to facilitate polymerization of the polymeric insulation material within the extruder. An application assembly in fluid communication with the extruder may apply the polymeric insulation material onto a wire. A curing device may then cure the polymeric insulation material.

Disclosed are cable types, including a type THHN cable, the cable types having a reduced surface coefficient of friction, and the method of manufacture thereof, in which the central conductor core and insulating layer are surrounded by a material containing nylon or thermosetting resin. A silicone based pulling lubricant for said cable, or alternatively, erucamide or stearyl erucamide for small cable gauge wire, is incorporated, by alternate methods, with the resin material from which the outer sheath is extruded, and is effective to reduce the required pulling force between the formed cable and a conduit during installation.

Disclosed are cable types, including a type THHN cable, the cable types having a reduced surface coefficient of friction, and the method of manufacture thereof, in which the central conductor core and insulating layer are surrounded by a material containing nylon or thermosetting resin. A silicone based pulling lubricant for said cable, or alternatively, erucamide or stearyl erucamide for small cable gauge wire, is incorporated, by alternate methods, with the resin material from which the outer sheath is extruded, and is effective to reduce the required pulling force between the formed cable and a conduit during installation.

A wiring harness assembly includes a plurality of electrical conductors having wires enclosed within insulative sheaths that are integrally formed of an electrically insulative material. The assembly also includes a lattice support structure that is attached to the insulative sheaths at multiple locations. The lattice support structure is configured to maintain a desired shape of the assembly. The lattice support structure is formed of filaments that may be formed using an additive manufacturing process The filaments may be arranged such that lattice support structure defines a plurality of hexagonally shaped apertures. A process for manufacturing the wiring harness assembly and an apparatus configured to manufacture the wiring harness assembly is also presented.

A wiring harness assembly includes a plurality of electrical conductors having wires enclosed within insulative sheaths that are integrally formed of an electrically insulative material. The assembly also includes a lattice support structure that is attached to the insulative sheaths at multiple locations. The lattice support structure is configured to maintain a desired shape of the assembly. The lattice support structure is formed of filaments that may be formed using an additive manufacturing process The filaments may be arranged such that lattice support structure defines a plurality of hexagonally shaped apertures. A process for manufacturing the wiring harness assembly and an apparatus configured to manufacture the wiring harness assembly is also presented.

A smooth torque balanced cable that includes an electrically conductive cable core for transmitting electrical power. The smooth torque balanced cable also has a first polymer surrounding said cable core. An inner layer of a plurality of first armor wires surrounds the cable core. The first armor wires being in partial contact with the first polymer and partial contact with a second polymer disposed opposite the first polymer.

A smooth torque balanced cable that includes an electrically conductive cable core for transmitting electrical power. The smooth torque balanced cable also has a first polymer surrounding said cable core. An inner layer of a plurality of first armor wires surrounds the cable core. The first armor wires being in partial contact with the first polymer and partial contact with a second polymer disposed opposite the first polymer.

The present disclosure relates a low-toxicity flame-retardant polyolefin-based insulating resin composition, a low-toxicity flame-retardant polyolefin-based insulated electric cable, and a method of manufacturing the insulated electric cable. The low-toxicity flame-retardant polyolefin-based insulating resin composition includes 100 parts by weight of a base resin and 120 to 140 parts by weight of a flame retardant. The base resin includes 20% to 40% by weight of polyethylene ethyl acrylate, 20% to 40% by weight of polyolefin elastomer, and 30% to 40% by weight of a linear low-density polyethylene resin grafted with maleic anhydride. The flame retardant is magnesium hydroxide that is surface-treated with a silane coupling agent. With the use of the composition, the low-toxicity flame-retardant insulated wire exhibiting good electrical insulation and anti-scratch characteristics and having good appearance can be obtained.