Discuss New DNO Supply help sizing in the Electrical Forum area at ElectriciansForums.net

Welcome to ElectriciansForums.net - The American Electrical Advice Forum
Head straight to the main forums to chat by click here:   American Electrical Advice Forum

Reaction score
1
Hi all,

I have become involved in getting a new supply laid into a block of flats. It was originally a house and was subdivided into flats >20yrs ago. Whoever did this used the existing 100A incomer and had 6x 80A BS1361 DNO fuses fitted which feed 4mm MICC submains. How the DNO p,ut 80A fuses on 4mm micc, im not really sure!?

So I need to request a larger supply, Im planning on getting them to leave the existing 100A supply for 1 flat, so I need guidance on size of supply for the remaining 5 flats. To cover future demand I would think I need to allow 80A per flat as a minimum, 3 have gas, 2 are 100% electric. Each flat is privately owned by different people so have not been able to ascertain actual loading, they are all fairly spacious 2 bed flats.

Would I be ok with a 100A 3 phase supply with 2 flats per phase? or should I request full 80A per flat which would be 160A.

Any info with regards to how much diversity the DNO would apply or standard supply sizes would be most appreciated. I have only ever requested single phase supplies to single houses before, so 100A single phase does most!
 
THE SUPPLY YOU HAVE IN NOW IA INADAQATE .IM SHOUT BECAUSE THE TV IS LOUD AND I CANT THINK ,thats better you need to speak to the DNO.
 

Reply to New DNO Supply help sizing in the Electrical Forum area at ElectriciansForums.net

OFFICIAL SPONSORS

Electrical Goods - Electrical Tools - Brand Names Electrician Courses Green Electrical Goods PCB Way Electrical Goods - Electrical Tools - Brand Names Pushfit Wire Connectors Electric Underfloor Heating Electrician Courses
These Official Forum Sponsors May Provide Discounts to Regular Forum Members - If you would like to sponsor us then CLICK HERE and post a thread with who you are, and we'll send you some stats etc

Electrical Forum

Welcome to the Electrical Forum at ElectriciansForums.net. The friendliest electrical forum online. General electrical questions and answers can be found in the electrical forum.
This website was designed, optimised and is hosted by Untold Media. Operating under the name Untold Media since 2001.
Back
Top
AdBlock Detected

We get it, advertisements are annoying!

Sure, ad-blocking software does a great job at blocking ads, but it also blocks useful features of our website. For the best site experience please disable your AdBlocker.

I've Disabled AdBlock