No Main Earth Help

S

sparkie710

Hi, im only just recently qualified and have come across a situation I have never experienced yet, in a block of flats in the hall are the meters that then go off to a switch then cables run into the house, there is no main earth in the house!! the tails are about 10 - 16mm cant remember now sorry. so I was wondering who has to run the earth in and if its me what size earth 10mm ? just want to clarify and what tests do I do and results should I get to be able to pme the system ? thankyou
 
they don't wanna know there saying its the lectrics mans responsibility but isn't there tests you can do ?
 
What are you actually saying is there no earth from the meter position into the house?
if so this is the responsibility of the sparky

If there is no main earth provided by the DNO first enquiry is required to find out if they could provide one. If not then you will need to provide a earth rod and make the installation a TT system

A picture of the intake and meters would be good to try and work out what's happening
 
?? You cant just PME a system this is not your area to mess with.

Ring the DNO and ask if PME is available in that area.

sparkie710 said:
Hi, im only just recently qualified and have come across a situation I have never experienced yet, in a block of flats in the hall are the meters that then go off to a switch then cables run into the house, there is no main earth in the house!! the tails are about 10 - 16mm cant remember now sorry. so I was wondering who has to run the earth in and if its me what size earth 10mm ? just want to clarify and what tests do I do and results should I get to be able to pme the system ? thankyou
Click to expand...
 
yea its all run in conduit and by the meter there is no visible earth so I was planning on doing some cals which I cant remember so was hoping someone could inform me if I can pme it, and just run the earth round the building, i will try get pictures sorry I know im crap at explaining stuff
 
onions1066 said:
I thought you was referring to sub mains to flats? You describe things like my MRS :001_icon16:
Click to expand...

It's a bit ambiguous I guess that's what he's refuring to needs some clarification. Seems strange that the exsisting sub main doesn't have a earth from the meter position into the house consumer unit
 
sparkie710 said:
yea its all run in conduit and by the meter there is no visible earth so I was planning on doing some cals which I cant remember so was hoping someone could inform me if I can pme it, and just run the earth round the building, i will try get pictures sorry I know im crap at explaining stuff
Click to expand...

What is all run in conduit and is this conduit metal?
 
I can't make out head nor tail of what the OP'S actually on about, he can't seem to answer simple questions on his query either!! I'll wait in anticipation of any photo's that are forthcoming before making any comment...

What is disturbing me, is that he doesn't seem to see any danger or consequence to making his own N-E connection. So let me tell YOU now, in no uncertain terms ''NO'' you CAN'T bloody well PME the supply just to suit your needs!!
 
Yes I am confused too, I have read his posts several times and not sure what he is talking about, more clarification needed please OP
 
There's way to much missing info and confusion so I'm also not going to comment apart from repeat the fact that you can't just PME a supply without getting permission from the DNO.
 
you can pme it if you get less then 0.35 I believe ? granted your not ment to but aslong as the area can be pme'd, then whats the problem ? its been tested pull the fuse, connect it up put fuse in and re-seal then your laughing :)
 
sparkie710 said:
you can pme it if you get less then 0.35 I believe ? granted your not ment to but aslong as the area can be pme'd, then whats the problem ? its been tested pull the fuse, connect it up put fuse in and re-seal then your laughing :)
Click to expand...

If he does that someone will be laughing and it might not be the OP!
 
thankyou, so whats wrong with that ? its been tested, I can pull and reseal meters its a pme area ?
 
sparkie710 said:
you can pme it if you get less then 0.35 I believe ? granted your not ment to but aslong as the area can be pme'd, then whats the problem ? its been tested pull the fuse, connect it up put fuse in and re-seal then your laughing :)
Click to expand...


Listen to Marvo and check with the DNO. It's one phone call to establish whether PME exists on the supply.
 
....how do you know that protective multiple earthing actually exists along the route unless you enquire with the DNO? For all you know, they may be in the 'process' of providing PME in that area but their work doesn't yet meet requirements. Phone them. Otherwise you are just guessing.

That's my take on it anyway.
 
sparkie710 said:
you can pme it if you get less then 0.35 I believe ? granted your not ment to but aslong as the area can be pme'd, then whats the problem ? its been tested pull the fuse, connect it up put fuse in and re-seal then your laughing :)
Click to expand...

Says who? A new one on me.
 
Maybe a really old system in which they relied upon steel conduit if it is steel as the main earth to the dwelling they may have originally had metalclad dbs. Needs looking into!
 
Some comments here are worrying including the OP. If the DNO has not provided an earth facility then the supply is TT end of. The OP says a block of flats so is it that no flats are earthed? What work is being done for the question to be asked?
 
I was under the impression the block riser/incomer is earthed an it is the sub mains to the dwellings that has no earth cable? Surely?
 
sparkie710 said:
Hi, im only just recently qualified and have come across a situation I have never experienced yet, in a block of flats in the hall are the meters that then go off to a switch then cables run into the house, there is no main earth in the house!! the tails are about 10 - 16mm cant remember now sorry. so I was wondering who has to run the earth in and if its me what size earth 10mm ? just want to clarify and what tests do I do and results should I get to be able to pme the system ? thankyou
Click to expand...

YOU CAN'T MAKE YOUR OWN PME

sparkie710 said:
you can pme it if you get less then 0.35 I believe ? granted your not ment to but aslong as the area can be pme'd, then whats the problem ? its been tested pull the fuse, connect it up put fuse in and re-seal then your laughing :)
Click to expand...

YOU CAN'T MAKE YOUR OWN PME

sparkie710 said:
thankyou, so whats wrong with that ? its been tested, I can pull and reseal meters its a pme area ?
Click to expand...

YOU CAN'T MAKE YOUR OWN PME

Have you got the answer yet. Do not try and dabble in things that are both dangerous and illegal.
 
Maybe you need your mate Sintra to give you a hand .. it's over 30 pages long, so could take a bit of shifting.

Waddya mean "not helping" ... I taught ye all you know about soldering !!!
 
Word of warning you just can NOT link NE if the network is not pme , this needs to be checked with the dno, joint in the network that are pme are studded both sides of every joint. If you link in your earth to the neutral block and it isn't PME then any fault potential will come straight down to your point of earth, because you would have created a direct path. CHECK IT OUT.
 
Tony said:
This has to be a wind up. I hope it's a wind up!
Click to expand...
I don't know what this thread is but I'm closing it before any more advice on home-made PME techniques comes along.

Just to sum the thread up clearly for those who don't read every post please note this advice;

Sintra said:
YOU CAN'T MAKE YOUR OWN PME



YOU CAN'T MAKE YOUR OWN PME



YOU CAN'T MAKE YOUR OWN PME

Have you got the answer yet. Do not try and dabble in things that are both dangerous and illegal.
Click to expand...


and this advice;

7029 dave said:
Word of warning you just can NOT link NE if the network is not pme , this needs to be checked with the dno, joint in the network that are pme are studded both sides of every joint. If you link in your earth to the neutral block and it isn't PME then any fault potential will come straight down to your point of earth, because you would have created a direct path. CHECK IT OUT.
Click to expand...
 

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No Main Earth Help
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