question

Andrew avatar image
Andrew asked

Earthing Grounding with 2 systems

I have a main 6kw with pylontechs (28kw) and an easysolar offgrid 48v 3kw 250/70 with 40a ac output for one ring main.

The offgrid is in a conservatory with 10 panels mounted in the garden, facing south in a row earthed with one ground rod.

The easysolar is earthed dc extenally in ironstone with a ground rod 3m away. I think pylontech can be chasis grounded but though to wire it to the same plumbing pipes the house and other system is on. Is this ok?

The consumer unit 40a - grounded on the same pipework?

SPD surge protection device - would this be needed to be externally earthed and if so can it use the same earth rod as the easysolar - my guess is it cannot but running out of places.

thanks


Grounding
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seb71 avatar image
seb71 answered ·

Ther should not be separate grounds in a house. So the electric installation (PE), metal plumbing/gas pipes should all be grounded together.

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Andrew avatar image Andrew commented ·
thanks for the response. Does the DC be externally grounded as I have done?
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