3 Phase advice needed

[Steve Maciver]

I will be wiring an old building that is being converted to six self contained flats, (three floors, two flats per floor.) These are served by a common stairway.

I propose to use a 3 phase supply, running 1 phase to each floor, each serving two flats. The landlord wants service sockets and lighting for the stairway on a separate circuit.

There will be seven meters in the cellar, one per flat and one for the stairway circuits.

I seem to recall that there are rules about different phases in close proximity to each other, i.e. a stairway 13a socket on one phase and a flats ring main on the other side of a wall on a different phase.

Is it possible to do this safely and what are the rules concerned?

HELP!!!

 

[Mr Mark Sparks]

dont stress
sockets in a flat and sockets on the stairs can be on different phases

for that matter sockets in the same area can be on different phases the answer to this is lables
415v between sockets etc
so in your case its not a problem as its unlikley that anyone will access both sockets at the same time

 

[boatnik1]

so in your case its not a problem as its unlikley that anyone will access both sockets at the same time

What a kind landlord. Sockets in the public area. I can just see extension cables from them to run the heating in the flats.

 

[Darkwood]

Fit keylock sockets in the stairwell then the sockets cant be used without key, happy landlord again.