How much kVA do I need?

[s85]

I'm hoping somebody can help me.

Im converting a 4bedroom flat to 3 x 1bedroom flats.

I am having a new 3 phase supply installed for 3 the flats. UK Power Networks have asked me how much kVA will I be needing in total.

Each flat will have its own gas supply with the heating & hot water supplied from the boiler. The cookers will be all/mostly gas.

I understand the capacity for a 3 phase is about 70kVA, however the DNO has said that there is limited amount of space available on the network and if the full 70kVA is required they may need to pass my application to another department to price and install, which is considerably more expensive.

My question is how much kVA would I actually need for the 3 1 bedrooms flats?

 

[JohnW2]

... Each flat will have its own gas supply with the heating & hot water supplied from the boiler. The cookers will be all/mostly gas. .... I understand the capacity for a 3 phase is about 70kVA, however the DNO has said that there is limited amount of space available on the network and if the full 70kVA is required they may need to pass my application to another department to price and install, which is considerably more expensive. .... My question is how much kVA would I actually need for the 3 1 bedrooms flats?

I don't think it would be at all unusual for each such flat to have a "60A" supply, which would equate to about 13.8 kVA per flat, hence around 40 kVA total for three.

Kind Regards, John

 

[ericmark]

Your description is about the same equipment as installed in most touring caravans which run on a 16 amp supply. Although unlikely the DNO would give you less than 60 amp. This house has a 60 amp supply, two electric showers, two kitchens, three story, and fuse has never blown.