Hello everyone....
Looked at a job today and needed to do a load calculation on the size of service this job will require. Customer has existing 200amp 3 phase 208v service. 7500 sq ft building. Built as a warehouse but being converted to a printing shop.It's been some time since the last load calculation so I want to make sure I'm not missing anything.Any hel[p in double checking my numbers is greatly appreciated.Here are my numbers w/ the proposed loads. Thanks ToHo

7500sq x 3.5 x 1.25% = 32812.5va
(AC Unit)60a x 220v = 13200va
(50 receptacles)x 180va = 9000va
TOTAL = 55012.5va
Other Outlets
50a x 220v = 11000
50a x 220v = 11000
50a x 220v = 11000
30a x 220v = 6600
30a x 220v = 6600
15a x 220v = 6600
15a x 220v = 6600
Total va = 52800
1st 10000va @100% = 10000
42800 @ 50% = 21400
60a x 220v(AC #2) x 25% = 16500
Grand Total of = 102912.5va
102912.5va / 360v = 285.8a