The neutral wire serves as common return to all the three phases acting outward from n 1. This is also known as a common neutral and the circuits and neutral together are sometimes referred to as an edison circuit.
Why Did I Get A Shock From A Neutral Wire In My House Quora
Shared neutral wiring diagram. I show and explain a shared neutral 2 separate circuits wiring a outlet 2 circuits in 1 outlet duration. Shared or borrowed neutrals which are unwanted interconnections between two circuits. Multiwire branch circuits can offer fewer conductors reduce the raceway size and reduce voltage drop. A shared neutral circuit uses 3 conductor nm b wire to join two adjacent circuit breakers in the panel to a junction box near the branch circuit loadsoutlets see figure 2. This photo is an example of a multiwire branch circuit preferred wiring diagram. A shared neutral is a connection in which a plurality of circuits use the same neutral connection.
The neutral points in both alternator and the load are joined together. Why are multiwire branch circuits used. This photo is an example of a multiwire branch circuit incorrect wiring diagram. In a 3 phase system it is legal in some jurisdictions to share a single neutral wire between all three 3 phases. In the above diagram the alternator is connected to the load by three phase four wire system. The use of shared neutral circuits produces significant copper savings when two branch circuits are close to each other but far from the circuit breaker panel.
Therefore the total neutral current is the vector sum of the three line currents. David berquist 688 views. These can often be found in older properties where the stairway light is connected to line from the.
