Calculate the estimated demand load in voltamperes and amper

Calculate the estimated demand load in volt-amperes and amperes @240v for a residence having the following characteristics

-2800 sq. feet, 30 general use receptacle outlets in unfinished areas, 2 small appliance branch circuits to the kitchen area, 1 laundry circuit,

2 dedicated branch circuits supplying outside receptacles, 1 dishwasher: 1/3 hp pump motor, 1000 w dryer element, microwave hood: 10A 115 V, Refrigerator: 10A, 115V, Counter mounted cook top 5.5 kW, 230 v, wall mounted oven: 6kW, 230 V, Air conditioning unit30 A, 230 V.

Solution

Total Power required for the 2 dedicated lines:

dishwasher: 1800kWh/3600=500W (approx)

pump motor: 1/3*720= 240W

Dryer: 1000W

Refrigirator= 1150W

Cook top=5500W

oven:6000W

AC= 30*230=6900W

for gen. use receptacle outlets, Power= 230*2.5*30=17250W

Laundry circuit power=230*30=6900W

2 appliance branch cricuit power=230*15*2=6900W

total Power= 46850W=46.8KW

The Demand load volt ampere is 46.8kVA

The reqd amperes is 195Amp