What is Bare Copper Wire?

Bare Copper in wire industry means pure copper, the contents of copper greater than 99%, it has very high electrical conductivity. For commercial purpose, there are bare copper clad copper conductors (copper with bare copper plating) in the market, the copper from here means copper alloy which mixed with other compounds and it is impure copper. Cut view is an easy method to distinguish between Solid bare copper and “Bare copper clad copper conductor”, please refer below picture, the yellow color copper alloy between the red color of bare copper, and it is more harden than solid bare copper conductor.

Cut view of Solid bare copper

Cut view of Bare copper clad copper

source from China Coiled Cord