Ryefield after isolator etc

[Lazlo]

Got a job to price, currently a single phase 100a service head, I need to supply 3no. 1 bed flats each to have own EDF meter and a common way meter to feed common way DB (lights/fire alarm etc) by my calcs 100A should be fine for all loads but I'd rather have a phase a floor with ground and common ways sharing a phase. All the flats I've worked on thus far have been metered by the landlords which have been submains from main 3phase DB to card meters. Any help appreciated. Looks like the service head is 3phase but only one phase being used but I guess DNO will look into that for client.....

 

[Leesparkykent]

Got a job to price, currently a single phase 100a service head, I need to supply 3no. 1 bed flats each to have own EDF meter and a common way meter to feed common way DB (lights/fire alarm etc) by my calcs 100A should be fine for all loads but I'd rather have a phase a floor with ground and common ways sharing a phase. All the flats I've worked on thus far have been metered by the landlords which have been submains from main 3phase DB to card meters. Any help appreciated. Looks like the service head is 3phase but only one phase being used but I guess DNO will look into that for client.....

Is this under UK power networks?

 

[Lazlo]

Yes it will be..

 

[Leesparkykent]

Yes it will be..

https://library.ukpowernetworks.co....0118+Supplies+to+Multi-occupied+buildings.pdf

Basically with regards to the installation you will have to install a suitably rated isolator or switch fuse as close as possible to the cutout, load side of isolator/switch fuse to ryefield, from ryefield to meters and from meters to switch fuses for flats.

 

[Lazlo]

I take it EDF will install from the 3phase isolator to meters then up to switchfuse installed by me. I'll go through the linked document as it looks like it answers my question....Cheers ears

 

[Leesparkykent]

I take it EDF will install from the 3phase isolator to meters then up to switchfuse installed by me. I'll go through the linked document as it looks like it answers my question....Cheers ears

No, this all changed in 2013 where I live and has been this way for a while in London. You will have to supply and fit the isolator, ryfield board and the wiring in between. Uk power networks will only install the cutout and the appointed meter operator will only install their meters.