Will GFCI work with items without equipment ground
I know it's probably a dumb question but my wife's hair dryer is old and has no equipment ground. Wanted to be sure she is still protected if it should be dropped into water or otherwise shorted.
Forum Discussion
GFCI outlets measure the power being used on the "hot" power lead and ensure the same amount of power it flowing in the neutral. If a tiny amount of imbalance occurs, it's meant to interrupt the flow of power and keep you safe. If there's no ground wire and you complete a circuit to something that is grounded, it will interrupt just as quickly as if there was one. Some devices don't have a ground wire because they're "double insulated" and you're not supposed to be able to touch a "hot" metal piece on them.
