Nothing will happen if the neutral and ground wire is shorted. The electrical code makes it mandatory that the neutral and ground are brought together at a common point within the distribution panel. On a 120/240 volt distribution system the ground wire is terminated at the point where the service neutral terminated in the distribution panel. It is usually a double lug the neutral wire connecting into one hole and the ground wire connecting into the other hole. Through this lug assembly there is a machine screw that is inserted through the lug assembly and it screws into the metallic enclosure of the distribution panel. This action bonds the metal enclosure, neutral wire and ground wire bringing the point to a common potential of zero.
In electrical wiring, the live or "hot" wire is typically brown or red, the neutral wire is typically blue or black, and the ground wire is yellow or green. So, in this case, the brown wire is likely the hot wire, the blue wire is the neutral wire, and the yellow green wire is the ground wire.
The neutral wire doesn't give an electric shock because it is the same potential as ground. That being said if you come in contact with the "hot" wire and the neutral or ground wire, you become the load and will receive a substantial shock.
For a typical 12-2 wire, the black wire is the "hot" wire that connects to the breaker, the white wire is the neutral wire that connects to the neutral bus bar, and the bare copper wire is the ground wire that connects to the ground bus bar in the circuit panel.
Ground wire can be appropriately bonded to the neutral and cabinet at the service box by connecting the neutral and ground wires from the feeder wires to the neutral bus bar and the ground terminal located on the same cabinet at the service box. White wire (neutral) must be connected to bus bar and bare wire must be connected to ground terminal in the same cabinet.
Yes, you may connect the ground and neutral together as long as this is a replacement in an exsisting dwelling,for new construction you must have a four wire circuit with separate neutral and grounding conductor.It was never the intention of the code to make home owners replace exsisting three wire circuits with four wire when replacing equipment. .
No
If there is no ground wire connect the ground wire to the neutral wire.
Something is shorted to ground on that circuit
A wire that is getting hot could be shorted to ground.
If a "hot" wire contacts the "neutral" or ground wire, electrical current flows to the ground.
In electrical wiring, the live or "hot" wire is typically brown or red, the neutral wire is typically blue or black, and the ground wire is yellow or green. So, in this case, the brown wire is likely the hot wire, the blue wire is the neutral wire, and the yellow green wire is the ground wire.
Some older wire does not have a ground. All you can do in that case is use a jumper wire to connect the ground to the neutral.
Yes, if there in no ground wire that is acceptable on a home with no ground wires.
There is an overcurrent situation in the circuit, could be a wire shorted to ground.
Typical home wiring will have one hot wire, one neutral wire, and one ground wire per circuit. An open neutral would indicate that the neutral wire, usually white wire, is broken.
No it is not
The neutral wire doesn't give an electric shock because it is the same potential as ground. That being said if you come in contact with the "hot" wire and the neutral or ground wire, you become the load and will receive a substantial shock.