An isolated ground receptacle (IGR) can reduce electrical noise, but if installed incorrectly, it can create a dangerous installation. This receptacle differs in construction from its self-grounding ...

Go to Home Depot, they have a gadget that you plug into the socket and it has lights to indicate various faults with the line. Not too expensive IIRC... <$10.

Not all outlet holes are the same, and there's a reason for that. The shapes (vertical slots, round holes, T-slots, etc.) correspond to specific electrical functions and safety features. Take the ...