Is this service 1PH or 3P - Keep getting conflicting answers

[infinity]

yep
that is why it makes no sense
3 conduit with 4x500 each (3 sets of 4-500's)?
as shown nothing adds up
we can assume 4 conduit but it clearly shows 3

The missing line representing the conduit is the only thing that doesn't make sense. Everything else points to 4 sets of 3 conductors and single phase.

 

[kwired]

I was just about to say the same thing. I don't think many utilities will provide a 1200 amp single phase service.

I'd say there is a good chance Ingenieur is right, and its a typo.

I upgraded a 2000 amp single phase service about a year ago to three phase, 208/120. But the load wasn't there, POCO only had a 100 kVA transformer supplying the single phase service. HVAC load was being added and we did need three phase. I ended up putting in a 1200 amp three phase service - POCO still only had 225 kVA transformer when done though. I bet the place seldom ever sees over 450 amps for peak demand.

 

[Ingenieur]

The missing line representing the conduit is the only thing that doesn't make sense. Everything else points to 4 sets of 3 conductors and single phase.

they took great care to draw 3 lines
why not 1 line and tag it as 4 sets x 3 conductors each set in a 4" conduit?

it could easily be read as 3 sets x 4 conductors in 3 conduits (they show 3 conduits but state 4sets x 3 conductors)
L1 in 1 conduit
L2 in one
N in one
which doesn't make sense since they would need derated if even allowed

there is a conflict/error
an RFI will clear it up, we are guessing

 

[Davidson Electrical]

Correct it only shows three conduits but it clearly says 4 sets of 3-500's in each conduit.

has to be three phase if u have four sets of conductors at the main, but i have built quite a few services from drawings and never seen any funky drawings like that..