Commonly the neutral is grounded (earthed) through a bond between the neutral bar and the earth bar. It is common on larger systems to monitor any current flowing through the neutral-to-earth link and use this as the basis for neutral fault protection.
Can neutral be earthed?
Earthing can be used as a neutral wire but a neutral can not be used as an earthing wire. 2.
Is the neutral wire the earth wire?
Live, neutral and earth mains wires
In a plug, the live wire (brown) and the neutral wire (blue) are the two wires that form the complete circuit with a household appliance. The earth wire (green and yellow) does not normally form part of the circuit and is included as a safety wire.