Wire And Cable Material

Bare copper exposed to air or wet water will oxidize in a few days. After oxidation, the resistance will become larger, which will affect the conductive function.

There are also some copper-clad aluminum and copper-clad steel on the market, which have poor electrical conductivity and are defined as defective copper wires.

The difference between bare copper and tin-plated copper: tin-plated copper is plated with a layer of tin on the basis of bare copper, which acts as an anti-oxidation core insulation layer (data).