We have one CT and one RAD equipment, owners want to feed both of these from an UPS (the UPS is downstream of our panel),
owner asked us to size the UPS to support these two equipments.
From radiology vendor drawings, it shows maximum load for CT is 60kW and RAD is 126kW.
Correct me if I am wrong, size there is no specific rule to size UPS in this case, I used NEC-517.73(2) as a go-by:
Largest radiology at 50% its max load = (126x 0.5) = 63kW
Second largest radiology lat 25% mits ax. load = (60 x 0.25) = 15kW
So, UPS size may need = (63kW + 15kW) = 78kW?
owner asked us to size the UPS to support these two equipments.
From radiology vendor drawings, it shows maximum load for CT is 60kW and RAD is 126kW.
Correct me if I am wrong, size there is no specific rule to size UPS in this case, I used NEC-517.73(2) as a go-by:
Largest radiology at 50% its max load = (126x 0.5) = 63kW
Second largest radiology lat 25% mits ax. load = (60 x 0.25) = 15kW
So, UPS size may need = (63kW + 15kW) = 78kW?