Discuss Exporting the earth? in the Industrial Electrician Talk area at ElectriciansForums.net

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Antimatter,
can I ask then, if you are installing outside lights or sockets wired to the main building which is on a TNCS....do you rod them individually,and separate the earth....or use the TNCS?....I ask because logically if you are so appalled by the thought of a shed on a TNCS then presumably you feel the same about an outside light?.....if not why not?

The best example is the outside socket, used exclusively in the main for garden tools and the like.... If there is a possibility of RISK, then surely this is the best example of how ludicrous some of these objections are!!!
 
The best example is the outside socket, used exclusively in the main for garden tools and the like.... If there is a possibility of RISK, then surely this is the best example of how ludicrous some of these objections are!!!

Outside light has the CPC connected to the MET, if extraneous metalwork in an outbuilding can introduce an earth potential within the installation.
 
Outside light has the CPC connected to the MET, if extraneous metalwork in an outbuilding can introduce an earth potential within the installation.



I think you are a wind-up, either that or you haven't bothered to read any of the posts that don't agree with your very confused version of the Reg's, ....or come to that ''common sense''
 
Straight from the IET FORUM

The inspector has asked for a metal shipping container cabin housing a db for a soil washer to be made into a TT as the supply is a TNCS pme .Now i understand you cant export PME but the feed for this db comes from another metal cabinet which in turn is fed from a metal shed all pme .

so is this user on the IET forum wrong as well chaps? or do you want me to post more examples?
 
I think you are a wind-up, either that or you haven't bothered to read any of the posts that don't agree with your very confused version of the Reg's, ....or come to that ''common sense''

I think the main concern is the danger associated with differences in earth potential in the event of a supply neutral fault.
 
ah the old lost supply neutral again. common as rocking horse s++t. happens every day.
 
Straight from the IET FORUM

The inspector has asked for a metal shipping container cabin housing a db for a soil washer to be made into a TT as the supply is a TNCS pme .Now i understand you cant export PME but the feed for this db comes from another metal cabinet which in turn is fed from a metal shed all pme .

so is this user on the IET forum wrong as well chaps? or do you want me to post more examples?


If you bothered to read the rest of the thread that you copied & pasted that post from, you would see that they infact agree that PME can be exported to an outbuilding!!!!!!!!!
 
Unless you can provide details of distance from the supply point to this container, there is no possibility to agree or disagree. But it does go to show that the PME has been as you call it ''exported'' before it even got to this container....
 

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