neutralijohdin
Neutralijohdin, or neutral conductor, is the conductor that completes the electrical circuit by carrying current back to the source in alternating-current power systems. It is connected to the neutral point of the transformer or generator and provides a return path for current, as well as a reference voltage near earth potential in normal operation.
In single-phase systems the neutral carries the current opposite to the live conductor. In three-phase systems
The neutral is typically insulated and made of copper or aluminum. In many electrical codes its color
Safety and grounding: The neutral point is usually bonded to earth at the building inlet to establish
Maintenance and cautions: Work on neutral conductors should be performed by qualified electricians with the circuit