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Old 01-24-2017, 09:43 AM   #21
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Join Date: Dec 2014
Posts: 169
Originally Posted by Jay2504 View Post
Can someone explain why this adapter won't work with GFCI outlet? Just for the sake of discussion, let's say that the neutral and ground wires are hooked up correctly at the pedastel and the 30amp and 15amp are fed by 2 different hot wires. I know the directions say it won't work I just wonder why? Any explanation would be appereated as I want to learn. Jay
You have two hot wires in parallel (the 30A supply and the 15A supply) and two neutral wires in parallel. The electrons that come down each of the hot wires can go back through either of the two neutral wires. When one neutral wire carries more electrons back than its hot wire brought down, and the other neutral wire carries back fewer electrons than its hot wire brought down, the GFIs will see an imbalance, sense it as a ground leakage, and trip. The same thing will happen whether both or only one supply has a GFI.
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