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Forums
Engineering
Electrical Engineering
Insulated copper wire turned into gray powder
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[QUOTE="NascentOxygen, post: 6230602, member: 336970"] My hypothesis is that something corrosive got splashed onto the roll of copper wire before it was plastic-coated, and moisture trapped in the cable condensing on the cooler lower level exacerbated the corrosion. The corroded patches seem roughly equi-spaced and of uniform size. I wonder is it possible for you to remove the insulation from that length of cable that was fixed to the wall, looking for signs of a corrosive substance present on the copper, but which has not proceeded to a catastrophic conversion into powder? [/QUOTE]
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Electrical Engineering
Insulated copper wire turned into gray powder
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