3 phase or not 3 phase

[shocked]

Hi all
came upon a 3 phase + N supply into a domestic property with only one of the phases being used to feed the c/u.
On the cert do i put down 3 phase or single phase
thanks
john

 

[ruston]

Are the other phases supplying other installations not in that property , ie terraced houses?

 

[Plonker 3]

How many of the phases in the house have a meter fitted to them?

 

[shocked]

the other phases are not used at all,i assume they do not have fuses in holders

 

[Plonker 3]

Never assume anything, if no meters are installed for other phases then it is a single phase supply. Although I would put it down as a 4 wire 3 phase system, as long as that is what the main incoming cable is.n

 

[ruston]

Never assume anything, if no meters are installed for other phases then it is a single phase supply. Although I would put it down as a 4 wire 3 phase system, as long as that is what the main incoming cable is.n

That's the way I would look at it too.

 

[shocked]

Only 1 x single phase meter fitted so I'll call it 4 wire 3 phase T-N-S supply but treat it on the cert as a single phase supply.
thanks Dillb and ruston