Copper wire winding in enamels, Dnipropetrovsk region.

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• according to the applied conductor materials: copper, aluminum and resistance alloys. A small part of the wires is produced with conductors made of bimetals, precious metals and special alloys, in particular, superconductors;(//tractor-service.com)
• by types of insulation: winding wires with enamel insulation, or enameled wires; winding wires with fibrous or combined enamel-fibrous insulation, including fiberglass and paper insulation; winding wires with plastic insulation, including film insulation. In addition, winding wires with solid glass and glass-enamel insulation are produced in limited quantities;
• by the value of the working temperature (heat resistance class). The most common group of winding wires are enamelled wires, which have significant advantages: thinner insulation allows you to increase the slot filling ratio in electric machines and devices, increase their power, or reduce the overall dimensions of electrical devices while maintaining the existing parameters."