Magnet wire included extruded insulation formed from a blend of two or more different polymeric materials is described. A magnet wire may include a conductor and insulation formed around the conductor. The insulation may include at least one layer of extruded insulation formed from a blend of a first polymeric material and a second polymeric material different than the first polymeric material. The first polymeric material may include one of polyetheretherketone, polyaryletherketone, polyetherketoneketone, polyphenylsulfone, polyphenylene sulfide, or polybenzimidazole. The second polymeric material may include one of polyphenylsulfone, polyetherimide, polyethersulfone, polyphenylene sulfide, polycarbonate, or polyester.

A flame-retardant electric cable has a core including an electric conductor and an electrically insulating layer. The electrically insulating layer includes a flame-retardant polyolefin-based composition which includes, as base polymer, a mixture of at least two polyolefin homopolymers and/or copolymer wherein at least one is a low-density polyethylene copolymer having a density lower than 0.915 g/cm3. The flame-retardant polyolefin-based composition also includes calcinated kaolin in an amount greater than 3 phr, a metal hydroxide in an amount greater than 10 phr, and an alkyl or alkenyl alkoxy siloxane. The alkyl or alkenyl alkoxy siloxane is in an amount ratio of from 1:25 to 1:50 with respect to the sum of the amounts of calcinated kaolin and of the metal hydroxide.

An insulated wire having an electrical wire structure capable of reducing an outer diameter while an insulating property and a flame-retardant property are highly kept is provided. In the insulated wire including: a conductor; and a coating layer arranged on an outer periphery of the conductor, the insulated wire has a flame-retardant property that allows the insulated wire to pass a vertical tray flame test (VTFT) on the basis of EN 50266-2-4, has a direct-current stability that allows the insulated wire to pass a direct-current stability test in conformity to EN 50305.6.7, has a diameter of the conductor that is equal to or smaller than 1.25 mm, and has a thickness of the coating layer that is smaller than 0.6 mm.

The present disclosure relates to insulation. Teachings thereof may be embodied in a solid insulation material, especially in tape form, the use thereof in a vacuum impregnation process and to an insulation system produced therewith, and also an electrical machine comprising the insulation system, especially for the medium- and high-voltage sector, namely for medium- and high-voltage machines, especially rotating electrical machines in the medium- and high-voltage sector, and to semifinished products for electrical switchgear. For example a solid insulation material with an anhydride-free impregnating agent may include: a carrier; a barrier material; a curing catalyst; and a tape adhesive. The curing catalyst and the tape adhesive are inert toward one another but react under the conditions of a vacuum impregnation process if combined with an anhydride-free impregnating agent having gelation times of 1 h to 15 h at impregnation temperature. The tape adhesive is free of oxirane groups and includes at least two free hydroxyl groups.

Various embodiments may include a solid insulation material, e.g. in tape form, the use thereof in a vacuum impregnation process, and/or an insulation system produced therewith and also an electrical machine having the insulation system, for the medium- and high-voltage sector. Some examples include rotating electrical machines in the medium- and high-voltage sector and also semifinished products for electrical switchgear. The solid insulation material and the insulation system produced therewith are characterized in that it can be produced in an anhydride-free manner, wherein the curing catalyst is, for example, an adduct of a 1H-imidazole and/or 1H-imidazole derivative with a compound containing oxirane groups.

An electric cable has at least one semi-conductive layer obtained from a polymer composition having at least one polypropylene-based thermoplastic polymer material, at least one first antioxidant and at least one metal deactivator.

A multilayer insulated wire includes a conductor, an inner insulation layer, and an outer insulation layer. A gel fraction of the inner insulation layer defined below is not less than 80%. A gel fraction of the outer insulation layer defined below is less than the gel fraction of the inner insulation layer and not less than 75%. An insulation covering layer including the inner and outer insulation layers is cross-linked and has a tensile modulus of not less than 500 MPa in a tensile test conducted at a tensile rate of 200 mm/min. Gel fraction (%)=(mass of inner or outer insulation layer after being immersed in xylene at 110 C. for 24 hours, then left at 20 C. and atmospheric pressure for 3 hours and vacuum-dried at 80 C. for 4 hours/mass of inner or outer insulation layer before immersion in xylene)100

Systems and methods are disclosed for creating mechanical computing mechanisms and Turing-complete systems which include combinatorial logic and sequential logic, and which are energy-efficient.

Disclosed is an eco-friendly polymer composition for an insulation layer of power cables having a morphology in which a second phase substance of polypropylene composite is dispersed in a first phase substance of polypropylene, wherein the polypropylene composite of the second phase substance has a morphology in which an at least partially cured elastomer is dispersed as a filler in a matrix of polypropylene.

Systems and methods are disclosed for creating mechanical computing mechanisms and Turing-complete systems which include combinatorial logic and sequential logic, and which are energy-efficient.