Connecting up new supplies.

[chris_k]

Ive been to price up sorting new supplies to 3 flats in the same building. The seperate supplies are all being fed from an existing cutout in a boiler room.

When having a look round with the developer, the first fix on 1 of the flats has been done and one flat completed. When i asked whos done the wiring he says the builder has!

If i go ahead with sorting supplies to these flats and connect up to the cu`s installed by the builder how do i stand legally?

I know im only responsable for the work i do (25mm swa to cu) but if i connect up to what is, essentially, an exisiting installation am i obliged to test the installation to ensure safe?

Or do i wire up, not energise and walk away and have this nagging feeling that i could be connecting up to potentially lethal installations.

Cheers

Chris

 

[NozSpark]

I think I'd wire up to an isolator and leave the builder to connect up!!

 

[ProDave]

My concern is 3 supplies from ONE existing cutout.

Sounds like the DNO being cheepskates. What are they proposing, a 33A main fuse for each flat?, or are they confident the cable size of the existing incomer can carry 300A?

 

[chris_k]

My concern is 3 supplies from ONE existing cutout.Sounds like the DNO being cheepskates. What are they proposing, a 33A main fuse for each flat?, or are they confident the cable size of the existing incomer can carry 300A?

Sorry, should be more clear. This is an old commercial building being converted to flats.

The dno have been in and have installed 3 new meters and 100a heads and isolators.

 

[Lurch]

I think I'd wire up to an isolator and leave the builder to connect up!!

My thoughts also.

My concern is 3 supplies from ONE existing cutout.Sounds like the DNO being cheepskates. What are they proposing, a 33A main fuse for each flat?, or are they confident the cable size of the existing incomer can carry 300A?

Where does the 300A come from, and why are then DNO being cheapskates?

I think you've got this arse about face. The developer will be the cheapskate, the DNO have probably never even been to the property. Also, there's maximum demand and diversity, 33A could be ample for each flat.

 

[batty]

I would be careful with this one why is existing sparks not doing work.

 

[bulmer]

Because he's a builder

 

[batty]

Because he's a builder

If the builder has done the work the developer is going to want a part p certificate and you are not going to be able to provide that.

 

[Lurch]

If the builder has done the work the developer is going to want a part p certificate and you are not going to be able to provide that.

Doesn't matter, fit supplies and terminate with isolator adjacent to the CU in each flat. Issue certs for submains, leave builder and developer to worry about the flat electrics.

 

[ProDave]

Ive been to price up sorting new supplies to 3 flats in the same building. The seperate supplies are all being fed from an existing cutout in a boiler room.

Sorry, should be more clear. This is an old commercial building being converted to flats.The dno have been in and have installed 3 new meters and 100a heads and isolators.

Where does the 300A come from, and why are then DNO being cheapskates? I think you've got this arse about face. The developer will be the cheapskate, the DNO have probably never even been to the property. Also, there's maximum demand and diversity, 33A could be ample for each flat.

The OP originally stated 3 flats were being supplied from EXISTING head.

So I assumed existing 100A SP head supplying 3 flats, which IMO was not adequate. I would like to see that in the morning when all 3 are having a shower at the same time.

The OP then later clarified that the DNO has in fact installed new supply heads, so have in fact dobe the job properly.

 

[Lurch]

The OP originally stated 3 flats were being supplied from EXISTING head.So I assumed existing 100A SP head supplying 3 flats, which IMO was not adequate. I would like to see that in the morning when all 3 are having a shower at the same time.

The OP then later clarified that the DNO has in fact installed new supply heads, so have in fact dobe the job properly.

I saw that, but still, no-one has said there are 3 electric showers or that each flat has a maximum demand of 100A so there was nothing to say anything required 300A or that 33A was inadequate.

 

[kme]

Fit supplies and terminate with isolator adjacent to the CU in each flat. Issue certs for submains, leave builder and developer to worry about the flat electrics.

Would agree 100%

Don`t get embroiled in any aggravation with the individual properties.

KME

 

[batty]

Would agree 100%Don`t get embroiled in any aggravation with the individual properties.

KME

I would make clear the situation about part p before undertaking any work you may end up not getting paid.

 

[Evans Electric]

My thoughts also.Where does the 300A come from, and why are then DNO being cheapskates?

I think you've got this arse about face. The developer will be the cheapskate, the DNO have probably never even been to the property. Also, there's maximum demand and diversity, 33A could be ample for each flat.

Admin , I don't like to tell tales .but Lurchio said arse-nal. :| As you know I'm very delicate and easily offended

 

[Badger]

Admin , I don't like to tell tales .but Lurchio said arse-nal. :| As you know I'm very delicate and easily offended

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