I have a very large antique mirror with some dense heavy wood framing it. I've stripped out some home electrical wire to use the copper ground wire as the cable that ties to the back of the mirror frame and holds it up on the wall. My question is how can I tell if the copper wire is strong enough to rely on and is it possible it will snap given time?
If I search the internet for load bearing on copper wire it refers to the wrong kind of load i.e. electrical which is not what I want to know.