g-and-h_electric
Senior Member
- Location
- northern illinois
- Occupation
- supervising electrician
Hey guys, I need a bit of help with a load calculation.
The building is thus: 2 story, with 2 stores on the first floor ( 1 rented, 1 vacant). 2 apartments on the second floor .(both rented). Th current service is 200 amp single phase (I know it is too small)
Here is what I need help with.... the apartment load calculations.... I am having problems applying the demand factors, and the numbers I am getting just look way too big, considering they are about 40+years old, and havent had any noticeable remodeling.
LOAD CALCULATION:
2 identical apartments of approximately 1250 square feet.
32 feet electric baseboard heat @ 250 W/ft
1 electric range @ 10kW (nameplate rating)
1250 sq ft x 3W/ sqr ft
2 small appliance circuits @ 1500 VA each
1 electric heat 8kW
2 electric range 10kW
3 general ltg 3.75kW
4 small appliance 3.0kW
Thank you
Howard
The building is thus: 2 story, with 2 stores on the first floor ( 1 rented, 1 vacant). 2 apartments on the second floor .(both rented). Th current service is 200 amp single phase (I know it is too small)
Here is what I need help with.... the apartment load calculations.... I am having problems applying the demand factors, and the numbers I am getting just look way too big, considering they are about 40+years old, and havent had any noticeable remodeling.
LOAD CALCULATION:
2 identical apartments of approximately 1250 square feet.
32 feet electric baseboard heat @ 250 W/ft
1 electric range @ 10kW (nameplate rating)
1250 sq ft x 3W/ sqr ft
2 small appliance circuits @ 1500 VA each
1 electric heat 8kW
2 electric range 10kW
3 general ltg 3.75kW
4 small appliance 3.0kW
Thank you
Howard
I knew something wasnt right, and the first set of numbers before I asked for help had me at almost 125 Amp of load...... And that spreadsheet is HEAVENLY!