the parallel combination of neutral and earth impedance.

In this manner, the difference in potential between neutral and ground of a contaminated circuit is also eliminated, especially from lighting or computing.

At this point the neutral and the ground are at the same potential .

With a three-phase power supply, the rails can be selectable between A-phase, B-phase, C-phase, Neutral and Ground.

A clearly labelled 3 core (live, neutral & earth) armoured cable connected and isolated with the waterproof switch is required.

We can also mention the terminal blocks that are in neutral and earth phase, found in all electrical panels.

Anybody who understands electric circuits realizes that most devices come with three wires: Live, Neutral and Earth.

This combined earth and neutral system is sometimes called the 'protective and neutral conductor' (PEN) or the 'combined neutral and earth' conductor (CNE).

the parallel combination of neutral and earth impedance.

network with directly earthed neutral

network with directly grounded neutral

system with neutral point solidly connected to earth

system with impedance earthed neutral point

To check for reversed neutral and ground wires, measure the hot-to-neutral and hot-to-ground voltages under load.

I think I found out where those 13.5v between the Neutral and Earth come from.