Comments by "GH1618" (@GH-oi2jf) on "How Receptacles Work - The basic working principle explained grounding" video.

  1. wilsonatore — “Hot” does not refer to current, but to potential. The neutral is held at ground potential. The hot wire exhibits a varying potential relative to the neutral and to ground.
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  2. In this context, “hot” means that it has line voltage with respect to ground.
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  3. The “hot” wire is the one not connected to neutral. The “neutral” is connected to the center tap of the transformer and is the grounded conductor. The ground wires connect the metal parts which do not ordinarily carry current to Earth. The neutral is a current-carrying conductor in normal operation. The grounds are not.
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  4. I think you are mistaken, however the NEC is an industry model code. Local codes may vary. The circuit shown is known as a Multiwire Branch Circuit. It is allowable, provided that the circuits use both phases and have a single disconnect.
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  5. Ronald Schild — I think the “ground up” orientation is a convention observed by hospitals and preferred by some people. In a recent project, my electrician installed them ground down and the inspector didn’t have anything to say on the subject. I prefer ground down.
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  6. hasib reza — You must not use that outlet type for 240V.
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  7. MrJohnisthename — The wider side is the neutral. It was introduced because of the recognized weakness of the Edison screw base used on ordinary lamps. It is much easier to accidentally make contact with the threaded part of the lamp socket than with the button in the senter. For that reason, when you wire a lamp, you must use a polarized plug and make sure that the neutral side of the plug is connected to the threaded contact in the lamp socket. Lamp cord contains two kinds of wire to help you do this.
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  8. Anwon Dells — No.
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  9. Newer what?
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  10. In the US, the code does not specify the orientation of a receptacle. Most are installed with the ground down, but they may be installed with the ground up or to the side.
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