Sunday 3 May 2015

Multiple Earthing System

Multiple Earthing System Points : multiple earthing system A TN-C-S system is as the TN-S but the supply cable sheath is also the neutral, i.e. it forms a combined earth/neutral conductor known as a PEN (protective earthed neutral) conductor.

The installation earth and neutral are separate conductors.
This system is also known as PME (protective multiple earthing).
The resistance should be less than 0.35 ohms:
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