Neutral and earth conductors must not operate in parallel (since A1 for Australia and New Zealand alike) except that, where earth-neutral operation on generator or transformer supply is used, generator neutral and earth conductors can each carry the highest fault current calculated for them, generator earthing conductors are sized to AS/NZS 3000 and neutral current capacity meets AS/NZS 3000. Where a MEN link is at the main switchboard, the installation earth electrode connects to that switchboard per AS/NZS 3000, and no earth electrode may be connected directly to the generating set.
The graph holds this control, the 0 it maps to, and the evidence behind each claim, over MCP and REST.