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Is this wire corrosion?
A lot of the DC wiring on my boat is not tinned. Everything is working fine. However, I just replaced the wire in the picture for other reasons and wondered if the black area on this copper wire is corrosion. The picture is out of focus, but you can probably see that some of the strands are copper colored, while others are black. All the strands seem to be intact, simply two different colors. If it is corrosion, what are the implications? This section was mid span and encased in plastic, not an exposed end. I unwound the strands for the picture. Don Casey's book has a drawing of wire corrosion, but since the picture is drawn it's hard to see what it really looks like. Anyway...could this be a problem?
Last edited by L124C; 02-25-2011 at 08:49 PM.