It's easy to mishandle that old cloth-covered wire. My former step-father-in-law fancied himself to be a Mr. Fix-it and hung a ceiling fan from something like this. Within a week it started sparking and left singe marks on the ceiling.
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I was working on changing our dining room chandelier, when I found this. I've only ever dealt with red, white and black wires - what do I do with this?