Friday, November 13, 2009

Difference Between Bare Copper and Tinned Copper

There are a few reasons to get tinned copper over bare copper but they both actually have their own advantages. Sometimes bare copper is the better choice even though it's obviously cheaper.

Bare copper is made and then run through the tinning process which is just a lite coating over tin over the copper. If it's stranded copper than the strands are each made and run through the tin individually. Then they are wound together to make the correct awg size needed. The reason the copper is run individually is so that the wires don't stick together from the tin.

Tinned copper comes in a lot of hook up wire because a lot of times the hookup wire is cut down to pieces and used for cable assemblies. During the soldering process the solder adheres to the tinned copper much better than bare copper so it's an advantage to have the tin.

Tinned copper is also sold solid and stranded without insulation. It's called buss wire, bus wire or even just uninsulated tinned copper. Bare copper has the same options and it's mostly called bare copper, solid copper or ground wire.

Bare copper is a slightly better conductor of electricity without the tin involved. The tinned copper isn't going to have to be a bigger awg size and you probably wouldn't notice it with the naked eye. However the bare copper is known to be slightly better as a conductor than the tinned copper.

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