Flat Enameled Copper Wire

View more products about flat enameled copper wire+

The production and performance of enameled flat copper wire for transformer applications are strictly regulated by authoritative industry standards:

• GB/T 5584.2-2020, Copper and Copper Alloy Flat Wires for Electrical Purposes, a national standard under the jurisdiction of the National Technical Committee 213 on Electric Wire and Cable of Standardization Administration of China, specifies strict requirements for copper purity, tensile strength, elongation, and DC resistivity of bare copper flat conductors, laying a solid foundation for the electrical performance of subsequent enameled products.
• GB/T 7095.1, General Requirements for Enamelled Rectangular Copper Winding Wires, which is equivalent to the international standard IEC 60317-0-2:2020, unifies the general specifications for dimensions, resistance, flexibility, and adhesion of all types of enameled flat copper wires, ensuring full compatibility of products in global transformer manufacturing scenarios.

The application of enameled flat copper wire in automotive motors is guided by dedicated industry standards tailored for the new energy vehicle sector:

• T/ZZB 0324—2018, Aromatic Polyimide Enamelled Rectangular Copper Wire for New Energy Automobile, Class 240, a group standard developed specifically for 800V high-voltage platforms, defines the full set of technical indicators for 240°C heat-resistant enameled flat copper wires with conductor widths ranging from 1.00mm to 5.00mm, fully matching the technical requirements of the “New Energy Vehicle Industry Development Plan” for high-efficiency drive motors.
• The 2025 released group standard Enamelled Rectangular Copper Wire for New Energy Vehicle Drive Motors further supplements the performance requirements for partial discharge inception voltage (PDIV) and high-frequency pulse resistance, adapting to the industry trend of high-voltage, high-power density automotive motor development.