Caculated MDP
The SOW specified 50 amp services for housing units. So a 3 phase 50 amp service at 80% would be 14,410.66 watts X 10 = 144,106.63 watts divided by 360 = 400.29619 X 1.25 = 500.37024
A 500 amp service with two cables in parallel 4C 250 with 2/0 ground.The 50 amp services will need #8 with #8 ground. Is that correct ?
It we assume that these are SFDs and subject to the NEC, then you could apply demand factors and have a smaller service load.
Annex D has some good examples.
Would the demand factor be 55% for housing units cosisting of lighting, receptical, and HVAC loads only?
The SOW specified 50 amp services for housing units. So a 3 phase 50 amp service at 80% would be 14,410.66 watts X 10 = 144,106.63 watts divided by 360 = 400.29619 X 1.25 = 500.37024
A 500 amp service with two cables in parallel 4C 250 with 2/0 ground.The 50 amp services will need #8 with #8 ground. Is that correct ?
It we assume that these are SFDs and subject to the NEC, then you could apply demand factors and have a smaller service load.
Annex D has some good examples.
Would the demand factor be 55% for housing units cosisting of lighting, receptical, and HVAC loads only?