MLewis720
New User
- Location
- North Carolina
- Occupation
- Electrician
A single family dwelling is supplied with a 120/240 volt, single phase, three wire service. This dwelling has 2,240 square feet, a total appliance load of 18,500 VA, 10,000 VA of air conditioning, and 25,000 VA of electrical heating which is controlled by six thermostats. Using the optional method, what is the total computed load for this dwelling?
I get 27,888 but the answer key says it's 39,720. I did 2,240x3=6,720 for the square footage. 4,500 for small appl. 18,500 for nameplates. 6,720+4,500+18,500=29,720
First 10 kw at 100%=10,000. Remainder at 40%= 7,888. After demand factor I found the air conditioning and heat to both be 10,000.
10,000+7,888+10,000=27,888. What did I do wrong?
I get 27,888 but the answer key says it's 39,720. I did 2,240x3=6,720 for the square footage. 4,500 for small appl. 18,500 for nameplates. 6,720+4,500+18,500=29,720
First 10 kw at 100%=10,000. Remainder at 40%= 7,888. After demand factor I found the air conditioning and heat to both be 10,000.
10,000+7,888+10,000=27,888. What did I do wrong?