In every electrical installation, there shall be a Main Earth & Neutral connection (also known as the MEN link) at the main switchboard.
Refer to the Australian wiring rules: AS/NZS 3000 - Clause 5.3.5
Here is an example of a compliant connection:
In every electrical installation, there shall be a Main Earth & Neutral connection (also known as the MEN link) at the main switchboard.
Refer to the Australian wiring rules: AS/NZS 3000 - Clause 5.3.5
Here is an example of a compliant connection: