PIR at factory

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Second DB (sub main from first?) Doesn`t HAVE a ruddy Ze. It has a Zs (DB), that is all.

Think about it - the "e" in Ze is "External"?? You couldn`t possibly test Ze at a sub DB, as you cannot remove the main bonds from there - it can only be done at the MET.

There`s another point, actually. The one building, fed from one HED, will usually only have ONE MET; therefore your suggestion that every DB is an installation doesn`t work, as there is no earthing system in place (unless an outbuilding on a TN has been TT`d), so they cannot be seperate installations.

If you DO fill out certs like this, what do you put as the earthing system at a sub-main?

KME

 
Hmmmm lets see.One DB 25mm tails 16mm cpc.

Another DB 16mm tails 16mm cpc.

Ze the same?
IMHO in this situation you must test Ze at the DNO end of the split of the tails, or at the meter because it is an external value.

 
And yes, i do fill out separate reports for EACH DB/INSTALLATION.

Nowhere in the regs does it state that one supply is one installation.

As i said many times, you could have several installations (cu/db) from one supply.

I am not sure why i cant put the point across that would be understandable?

Im not good at these things.

 
As i said many times, you could have several installations (cu/db) from one supply.
IIFTM - hypothetical situation; I go to buy a house that has an old Wylex wired consumer unit that had no spare ways and the vendor had a new kitchen extension put in. To comply with regs the electrician split the tails and fitted a four way stand alone consumer unit, next to the old one with a RCD and a radial for the sockets and a separate circuit for the downlighters.

As a potential purchaser I ask for a PIR on the property. How many reports will you issue me?

:D

 
And yes, i do fill out separate reports for EACH DB/INSTALLATION.
if you have one DB feeding another, its still part of the same installation.

if you have split the supply before any DB's, then each DB could be considered its own installation

 
in response to apaches post just took too long typing..

exactly my argument you have no main switch.

If you think (as the tester) this has broken a reg, it has to be coded, if you are coding it for not being there surely this should be improved hence code 2, as sidewinder says this is harsh.

If this is true depending on your take on the regs i have never seen a complaint installation with a off peak board!

 
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ok an installation is 'an assembly of associated electrical equipment having co-ordinated charactoristics to fulfil specific purposes'

now can you tell me a type of installation that has 1 source with many db's that doesn't have co-ordinated charactoristics to fulfil specific purposes?

i can thing of many that do, a hotel with a cu for each room, factories with db's serving each area, letted offices with db's serving each sepperate office space. i can't really think of any installations that have several db's off one source that have no rational explaination linking them what so ever.

 
exactly my argument you have no main switch.If you think (as the tester) this has broken a reg, it has to be coded, if you are coding it for not being there surely this should be improved hence code 2, as sidewinder says this is harsh.

If this is true depending on your take on the regs i have never seen a complaint installation with a off peak board!
but you do have a main switch. the switch in the board is the main switch for the installation

 
Been watching this one from the sidelines, I think a few of you need to take a step back as well!

From what I can see (and I apologise if I've missed anyone), Andy, Sidewinder and Initforthemoney have all acknowledged that what constitutes an installation is open to interpretation. The rest of you (and this appears to be a trend of late) are getting frustrated because everyone won't agree with you.

KME and Lostit - my word chaps, accept that there are other views than your own, you may not agree with them, but that doesn't make them wrong (especially not 1000%!)

 
You have been told off before about not qualifying your answers. Now that is a worrying attitude. I suggest you stop and take a look at yourself. You are not the best at getting your point across, or the best at referencing your answers or the best at explaining things.
Did you actually read the thread to understand the context?

 
IIFTM - hypothetical situation; I go to buy a house that has an old Wylex wired consumer unit that had no spare ways and the vendor had a new kitchen extension put in. To comply with regs the electrician split the tails and fitted a four way stand alone consumer unit, next to the old one with a RCD and a radial for the sockets and a separate circuit for the downlighters. As a potential purchaser I ask for a PIR on the property. How many reports will you issue me?

:D
almost missed this post

would probably issue 1 PIR

 
heres a very simple example. shop with flat above.

cutout and meters are in shop porch, with split tails for a cu for the shop and a cu for the flat. when doing a pir on the shop would you write down 'whole' for extent of installation covered? i know i wouldn't!

 
heres a very simple example. shop with flat above.cutout and meters are in shop porch, with split tails for a cu for the shop and a cu for the flat. when doing a pir on the shop would you write down 'whole' for extent of installation covered? i know i wouldn't!
depends how 'seperate' the installation is. in this case, id issue 2 PIR's, but in apaches, both in the same house, then stick them on 1

 
I would also issue one report (with two schedules), but I can also see the logic in providing two reports!
i would provide 1, but can't see the logic in providing 2?

imagine the paper work with an extra 3 peices of paper per board when you have a hotel with 200 rooms

 
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