Surface Treatment And Insulation Layer Of Copper Wire

To enhance performance, copper wires often undergo coating treatment: tin-plated copper wires (with a tin layer on the surface) improve solderability and prevent oxidation, and are widely used in the pins of electronic components. Nickel-plated copper wire (with a nickel layer) combines corrosion resistance and wear resistance, making it suitable for high-temperature or corrosive environments.
In terms of insulation, the copper wire is wrapped with PVC, XLPE (cross-linked polyethylene), rubber or fluoroplastics, enabling it to adapt to different voltage levels (from low voltage to ultra-high voltage) and environmental conditions (from dry indoor to humid outdoor).