Earthing Rod

Interesting original question.

Many electricians, when wiring an outbuilding which will obtain it's earth from an earth stake, will ask similar questions - when they get an unacceptable Zs.
 
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Interesting original question. Many electricians, when wiring an outbuilding which will obtain it's earth from an earth stake, will ask similar questions - when they get an unacceptable Zs.
I don't think the OP us asking about only having an earth rod for the outbuilding (i.e. not 'exporting' the house's earth) - but that's a different discussion. I think the OP was asking whether it was 'dangerous' to add an earth rod to an outbuilding which already had an 'exported' earth connection.

Kind Regards, John
 
I realise that, I did say 'similar', but thought it seemed related.
Fair enough, but they are two very different situations, with different considerations.

For what it's worth, I personally would say that the short answer to the actual OP is 'no' ... as far as I can see, about the only risk associated with adding a local rod to an outbuilding which already has an 'exported' earth connection is that, in the event of the infamous 'lost neutral' on a TN-C-S supply, it might result in appreciable potential gradients in the ground around the outhouse. However, the same is true in the ground around the house if it has bonded extraneous-c-ps.

Kind Regards, John
 
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All right, who are you, and what have you done with BAS?:p
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Seriously - if I screw up, I 'fess up.
 
Yes, me too - and in another thread earlier - the chandelier one.

Like you I can see them when the post is quoted.
 
I think it's since we switched to https on here, it won't show http images any more in your browser for obvious reasons. So you get a broken image.
 
You're right, and they are https as well.
Maybe the target site has a same origin policy, I haven't looked into it. Or the js on this site is breaking them
Using my phone it doesn't really let me investigate.
 

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