Flat Enameled Copper Wire: Features, Materials, and Applications

Characteristics of Flat Enameled Copper Wire

Flat enameled copper wire has good conductivity, insulation, and high-temperature performance. The specific characteristics are as follows:

Good conductivity

Flat enameled copper wire uses pure copper as a conductor, which has good electrical conductivity and can ensure the transmission efficiency of current.

Stranded bare copper wire provides excellent conductivity for direct connections, while flat enameled copper wire combines good conductivity with insulation for efficient, safe use in compact spaces.

Excellent insulation performance

Flat enameled copper wire has a layer of insulating varnish on its surface, which can effectively prevent current leakage and short circuits, thereby improving the safety of the wire.

Good high-temperature resistance

Flat enameled copper wire can operate stably for a long time in high-temperature environments without easily deforming, aging, or melting.

Good corrosion resistance

Flat enameled copper wire uses pure copper as a conductor, which is not easily oxidized and corroded, ensuring long-term stable operation of electrical equipment.

Main Raw Materials for Flat Enameled Copper Wire

Copper Wire

The conductor material is the main component of enameled wire, and some mechanical properties of enameled wire, such as elongation and resilience, mainly depend on the quality of the conductor. Enameled wire conductors include copper conductors and aluminum conductors, with copper conductors being the most used.  

Copper has good electrical and thermal conductivity, second only to silver in electrical conductivity, and second only to gold and silver in thermal conductivity. It also has certain mechanical strength, sufficient tensile strength, and elongation. It has good corrosion resistance and is easy to weld. Therefore, it is an ideal conductor material for enameled wire.

The copper wire used in enameled wire is divided into round copper wire and flat copper wire, and their various properties and specifications should meet the requirements of GB3953 "Round Copper Wire for Electrical Purposes" and GB5584 "Rectangular Copper or Aluminum and its Alloy Wire for Electrical Purposes".

Enameled Wire Varnish

Enameled wire varnish is one of the main raw materials for enameled wire and belongs to the special coating for coating enameled wire. It is an organic polymer solution applied to the surface of bare wire, forming a firmly adhered, continuous solid varnish film with certain strength after baking, mainly providing electrical insulation.

Application Fields of Flat Enameled Copper Wire