Copper wire wrapping made of primary copper. The most commonly used copper wire M1 or M2. Copper has high moldability, flexibility, conductivity, resistance to corrosion. These properties allow the use of copper wire in many sectors - mechanical engineering, power engineering, for winding electric motors, transformers, coils contour, as well as the different devices.
Copper conductors are classified depending on the insulating material (thickness and cross-section shape), which is reflected in the alphanumeric labeling. There are the following types of windings:

  • Cotton (B);
  • silk (W);
  • rayon (HQ, K);
  • glass fiber (C);
  • asbestos fiber (A);
  • enamel lakostoykaya (EL);
  • vinilfleks (EV);
  • heat-resistant enamel (ET);
  • polyurethane enamel (EVTL).
    Insulation winding copper wire determines its performance characteristics. For example, paper insulated wire is used at temperatures not exceeding 105 degrees.
    The most common is copper winding wire enamel, characterized by low thickness, high physical and mechanical properties, electrical conductivity and thermal shock resistance. Also, copper wire wrapping insulated by oil and synthetic varnishes - brand PEL, PEVTL, PETV and others.
    Winding wire PEL is characterized by high electrical insulation, which does not change when exposed to high temperatures and considerable humidity. They are used in the manufacture of coils and frames for electrical appliances. Diameter copper wire is 0.02 to 2.5 mm.
    PETV brand wire characterized by high resistance to aggressive media. This allows their use in the winding of electrical machines and devices without additional coating.
    Wires copper winding enameled, brand PEVTL often produced with a diameter of 0.05 to 1.6 mm. Polyurethane insulation does not require pre-cleaning of the surface, it is widely used in radio engineering and instrument making.
    There is even a silver-copper wire, but it is mainly used for medical purposes, for the manufacture of various types of medical equipment and, for the prophylaxis treatment of a wide range of diseases.

    Download Non-Ferrous Metals Catalogue in PDF