Earthing Rod

[sparkwright]

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.

 

[JohnW2]

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

 

[sparkwright]

I realise that, I did say 'similar', but thought it seemed related.

 

[JohnW2]

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

 

[ban-all-sheds]

All right, who are you, and what have you done with BAS?

Seriously - if I screw up, I 'fess up.

 

[JohnW2]

Seriously - if I screw up, I 'fess up.

Placeholders again!

Kind Regards, John

 

[EFLImpudence]

Yes, me too - and in another thread earlier - the chandelier one.

Like you I can see them when the post is quoted.

 

[John D v2.0]

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.

 

[JohnW2]

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.

It shows them to me in the Reply box!

Kind Regards, John

 

[John D v2.0]

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.

 

[333rocky333]

There is a post in forum information about the IMG

 

[ban-all-sheds]

Indeed - but it's not necessarily easy to get him to decide that he's made an error!

It's very easy. You just have to be right.

 

[JohnW2]

It's very easy. You just have to be right.

Indeed, but some people have a habit of believing they are right when many other people disagree

Kind Regards, John

 

[stillp]

Seriously - if I screw up, I 'fess up.

Yes, but it was too good an opportunity to miss!