Neutral earthing

**Derlyn** · 30-Nov-23, 08:49 PM

Been familiarising myself once again with SANS 10142 with regards neutral earthing.

Couldn't help but had a little chuckle when reading 7.16.4.5.

Is that regulation really necessary ?

**Dave A** · 01-Dec-23, 07:45 AM

To save folk looking up the clause:

7.16.4.5 The neutral shall not be earthed beyond any earth leakage unit.

I can imagine how that conversation went in the SANS committee:

Derlyn: Is that regulation really necessary ?

Cecil: If we don't put it in, some idiot will f. it up and then blame us for their f-up.

**Derlyn** · 01-Dec-23, 08:03 AM

It's the same as saying .... " the live should not be connected to the neutral or earth anywhere on the installation. 😂😂

**GCE** · 01-Dec-23, 08:57 AM

Originally Posted by Derlyn

Been familiarising myself once again with SANS 10142 with regards neutral earthing.

Couldn't help but had a little chuckle when reading 7.16.4.5.

Is that regulation really necessary ?

I agree - Sometimes people don't think and bear in mind that some municipalities insist on an Adit unit when the supply is greater than 300KVA - The Adit unit may not pick up the neutral earth bridge due to it being set a lot higher than 30ma