1. This is normal if your neutral conductor or a busbar is under size wherein the source is a 3 phase + N + E. 2. Most pre-fabricated 3 phase panelboards have a neutral busbar size just equivalent to phase busbars . 3. When your loads are mostly or all 1 phase in a 3 phase panelboard -- the Neutral Busbar is overloaded and heating will occur or melting. 4. When planning or designing this is given attention in specifying or computing details prior to manufacturing or fabrication of panelboards. 5. If the heating occurs in a conductor -- please check loose connections either side of terminations or you may trace that particular length of neutral cable if it's used (tapped) for other loads.
It must be connected to (or touching) something that allows it to carry a charge. If the wire becomes hot, electricity is definitely flowing (or you're holding it over a fire) and you should probably find out why.
An electrical circuit forms a loop. The "live" or hot wire supplies the voltage, which is returned on the neutral. If the hot wire and neutral wire were connected together without a load between them, the circuit would be short out and trip the circuit's protection device.
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.
because its much safer to switch the hot wire then the neutral wire because if you are working on a light fixture for example and the switch is off if you ground yourself out to the neutral you become the load or return. a neutral shock can me more dangerous at times
The white is neutral. The house does have a neutral wire even though it may be black. One of those black wires is the neutral and the other is the hot wire. You will have to determine which is hot and which is neutral. You can easily do this with a voltage tester. The wire that lights the tester is the hot. When you wire the light simply wire the hot to hot, and the white and green to the other wire.
Brown = Hot Blue = Neutral Yellow/Green = 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.
If wired properly the ridged wire is the neutral.
An electrical circuit forms a loop. The "live" or hot wire supplies the voltage, which is returned on the neutral. If the hot wire and neutral wire were connected together without a load between them, the circuit would be short out and trip the circuit's protection device.
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.
because its much safer to switch the hot wire then the neutral wire because if you are working on a light fixture for example and the switch is off if you ground yourself out to the neutral you become the load or return. a neutral shock can me more dangerous at times
The white is neutral. The house does have a neutral wire even though it may be black. One of those black wires is the neutral and the other is the hot wire. You will have to determine which is hot and which is neutral. You can easily do this with a voltage tester. The wire that lights the tester is the hot. When you wire the light simply wire the hot to hot, and the white and green to the other wire.
If this is a home wiring question and the wires are black and white then black is Hot and white is Neutral. If you also have a red wire, it is the other hot wire, and either the black or the red wire to the white one would be 120 volts, and red to black would be 240 volts.
Brown = Hot Blue = Neutral Yellow/Green = Ground
If a "hot" wire contacts the "neutral" or ground wire, electrical current flows to the ground.
Red is hot Green is ground White is neutral
Black red and yellow is three-phase. there is no neutral.
so you don't get shocked