How a GFCI outlet works
Episode 0 min 22s

How a GFCI outlet works

From BrainStuff iHeartPodcasts
A normal 120 volt outlet in the US has two vertical slots and a role hole centered below the slots -- the outlets with a pair of red and black 'test' and 'reset' buttons are known as GCFI outlets. Check out this HowStuffWorks podcast to learn more.

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