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First off, this is for a single phase 120/240V system only. The ground and neutral can be bonded at the receptacle but not instead of bonding them at the panel.You should always have them bonded together at the panel in a single phase 120/240V system. Otherwise you risk having a floating neutral in your system.

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โˆ™ 2008-10-31 15:33:51
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Q: Why can't the ground wire be connected to neutral at the receptacle instead of in the main panel?
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Can you change outlet to fit old 3 prong outlet?

An old 2 hole receptacle can be changed to a 3 hole receptacle that will accept a 3 prong plug, provided a ground wire is available at the box and connected to the ground (green) lug on the new receptacle. A 2 hole receptacle has a hot and neutral wire, while a 3 hole receptacle will require a ground wire connection -- in addition to the hot and neutral wires.

How do you wire a NEMA l5-30P receptacle?

The neutral wire is connected to the W terminal, the ground wire to the G terminal and the hot wire to the last terminal. The small blade is neutral (white), the larger blade is hot (black) and the notched blade is ground (green).

Is a grounding 120 volt receptacle larger than an ordinary receptacle?

No, it just has an additional conductor to separate the neutral from the ground, and has a third prong in the receptacle to receive the appliance grounding conductor through the cordset.

How are the live neutral and ground wires connected to a duplex grounding type receptacle?

The black "hot" conductor goes to the brass coloured screw. The white coloured conductor goes to the silver coloured screw. The bare ground conductor goes to the ground green coloured screw

Should you hook your neutral to ground?

Neutral is connected to ground at the distribution panel, and no where else. Any current flowing on ground downstream of the panel is considered a ground fault.

What neutral ground resistor?

Neutral Ground Resistor is using for minimizing the fault current of system. It is a resistor which connected between ground and neutral and increase the resisting path for fault current.

What is a silver screw in a new wall receptacle for?

The screw is actually only silver in color and it is where the neutral wire(s) get connected to, (white wire). the gold colored screw gets connected to the positive(black or red) wire(s). Green screw is for ground wire.

Which prong of an outlet is live?

Looking at a duplex receptacle the right smaller slot is hot, the left larger slot is neutral and the u ground is ground.

What would cause 5 volts to be sensed at water supply pipe?

The water pipe is not properly grounded AND there is a ground fault or neutral imbalance in the house. Alternatively, there could be a neutral problem. In an ideally balanced house, the current on one hot leg balances the current on the other. This means that there is no current on neutral. In practice, there is some imbalance, and that common mode current does flow on neutral. If a circuit has a ground fault, the current return for that circuit is on ground, instead of neutral. That is wrong, and must be corrected. However - neutral and ground ARE connected together at the distribution panel. They are also connected at the street, so imbalance current could flow through ground instead of neutral. How much voltage is dependent on how much impedance. If there is a voltage at the house ground, and no ground fault or major imbalance, it calls into question the adequacy of the ground path, however, it is also possible that neutral is open, causing the imbalance current to flow through ground alone.

Why is the ground wire hot at all outlet boxes on a particular circuit?

Most likely the ground (green) wire is mistakenly connected to hot instead of the hot wire (black) at the breaker panel! Possibly you meant the neutral wire not the ground wire, in that case most likely the neutral (white) wire is mistakenly connected to hot instead of the hot wire (black) at the breaker panel! In either case check all three wires in the breaker panel for that circuit to make sure they are all correctly connected! Black is hot, White is neutral, Green (or uninsulated in some cases) is ground.

Do you have to connect a ground wire to an outlet?

If the receptacle has a ground terminal (green screw) and has three prongs, you must connect a ground wire if it is a new installation. There is one exception to this: if the three prong receptacle is fed from the LOAD side of a GFCI receptacle, it is not required to have a grounding conductor. This is because the receptacle is considered to be protected by the GFCI's function. In addition the GFCI itself is not required to have a ground connected. In these cases the receptacle needs to be labeled "no equipment ground" on the wallplate. If this is existing, you are usually not required to correct things that were not originally done to code. However a three prong receptacle should not be used as such if it does not have a grounding conductor connected. This would lead to a false sense of grounding and safety.

What are the common wiring in a receptacle?

Black wire is HOT, white wire is NEUTRAL and bare or green wire is GROUND. The black wire goes to brass colored screw, the white wire goes to silver colored screw and the bare wire goes to green screw that is connected to the metal "frame" of the receptacle.

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