how do ground adapters work?

Question

just wondering

Answer 1

Do you mean those things that change 3-prong plugs into 2-prong plugs?

The theory is, that the center screw on the outlet is grounded and the 3rd-prong on your plug will get electrically connected to that screw, and to the ground wire. BUT that isn't always the case. Sometimes there isn't a ground wire (especially in real old houses).

The other thing the adapter does, is align the "hot" and "neutral" prongs so they are fitted into the proper holes in the outlet. In older 2-pin outlets the size of the slots is the same, and in a newer 2-prong plug the "neutral" (earth ground) lead is physically larger than the "hot" lead -- so it won't fit into some older 2-prong outlets. The adapter takes care of that. BUT, If the outlet was wired incorrectly, then you've just connected the 'hot' to the neutral side of your appliance.

If there is a fault in your appliance, you'll either trip the breaker, if the center screw is connected to ground, or you'll set yourself up for a nasty shock when you touch the metal case of the appliance.

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Answer 2

Hi. They take any electrical 'leakage' and send it to system ground. I attempted to drill some holes in a project car while lying in a puddle when I was young and stupid. THAT will never happen again. Big zap.