Is it 3-phase?

[DomB]

Chaps, can you tell me if the supply head in the picture attached is three phase?

Thanks!

 

[Hawk81]

It looks like 2 phase and neutral.

 

[DomB]

Thanks Hawk; the customer want to run a three-phase laundry service from it.. Would the DNO need to come in to upgrade it then?

 

[Hawk81]

Best advice I can give you is to phone the DNO and see what they say.

 

[DomB]

Aye, ta, I called them and they don't keep a record of what supplies properties have.

It is a very old house so I guess two-phase & Neutral makes sense

 

[Big n Daft]

The DNO needs to look at that supply.
What DB arrangement does the property have?

 

[mechelec]

looking at the supply cable i would say it is a single phase supply coming into the property and linked to supply the two fuses but unless you take the CO apart you will not know (as already suggested let the DNO sort it)

 

[DurhamSparky]

nice piece of VIR rearing its head in the side of service head!!

 

[ezzzekiel]

yup looks single phase with two fuses

 

[DomB]

They do have a flat upstairs so maybe the 2nd fuse was put in to supply that.

Thanks very much all

 

[loz]

looks like split phase, test between both supplies, split single is indicated by 460 volts, also try do a phase to phase reading if your tester does this.

 

[Knobhead]

Highly unlikely it’s split phase unless it’s out in the sticks somewhere. Single phase with two supplies from it is favourite. Good luck with getting 3 phase installed.

 

[mattmoo1974]

Polyphase.
Had a customer that wanted his 60amp upgrading. He could either have 100amps(£3000) Or another 60amp from the same phase for £1500.
DNO guy i had to speak with about it was super helpfull
No 3 phase in the area.