COMMERCIAL LOAD CALCULATION FOR NYC

[FVC]

Question #1
Small office in NYC, the existing space has a single phase panel. The new load calculation I came up with is 61,235VA

The service is 120v/208v single phase. Do I do the 61,235va(208V x 1.73) even though I only have 2 hot phases and no 3 phase in the panel.
Or do I just do the 61,235va / 208v = 294 AMPS

Question #2
Also if I have (50) 20A receptacles @ 180VA do I also need to count the circuit quantities that those (50) Rec will be connected too?

 

[FVC]

Please help

 

[topgone]

Question #1
Small office in NYC, the existing space has a single phase panel. The new load calculation I came up with is 61,235VA

The service is 120v/208v single phase. Do I do the 61,235va(208V x 1.73) even though I only have 2 hot phases and no 3 phase in the panel.
Or do I just do the 61,235va / 208v = 294 AMPS

Question #2
Also if I have (50) 20A receptacles @ 180VA do I also need to count the circuit quantities that those (50) Rec will be connected too?

Ans 1: Correct, 294 AMPS
Ans 2: 50 x 180VA =9,000 VA

 

[FVC]

For answer 2, I know that (50) rec X 180 VA = 9,000VA but what I was asking was; these (50) rec will be fed with (10) 20 amp circuits. Looking at my Mime Holt book it looks like the following? ":

9,000 VA for the rec

then

120v X 20A X (10) circuits = 24,000VA

24kva + 9kva = 33,000va

 

[jglavin427]

Let's assume the (10) 20A circuits each feed 5 recepts. The load on each would then be 900 VA, for a total load on the 10 circuits of 9000 VA. In other words, you do not need to add an additional 20A per circuit on top of the connected load.