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I have purchased a house in the last three months. I have had to do some work above my basement drop ceiling and have been shock a few times when accidentally touch the framing with both arms. Where do I start?
My first guess would be ceiling lights so I would try switching off the breaker for all ceiling lights and then with a voltmeter see if the grid is still charged.
you wouldn't like to think so but this actually happens on a kind of regular occasion on big commercial jobs, the current diffuses through out the grid and is going to be strongest where the wires are touching the grid work. usually like titleist said, the lights. but in a residential setting sometimes they will lay wires right ontop of the grid work and run it over to what ever they are wiring up. if you were shocked harder by touching the grid in a particular area then somewhere else that tells you, you were closer to the one that is the problem. of course that isn't the prefered method to find the short