Optional School Calc

Optional School Calculations Check Values

Find technique of solution in Reference Formulas Appendix page 27.

Find practice problems HERE.

If the service voltage is 240 volts, here are calculated check values. To get actual service sizes, use 240.6.

va/sq ft

5000 sq ft 
1 phase

5000 sq ft 
3 phase

10000 sq ft
1 phase

10000 sq ft
3 phase

15000 sq ft
1 phase

15000 sq ft
3 phase

15

250

144

500

288

750

432

20

328

189

656

378

778

449

25

354

204

708

408

1062

613

30

380

219

760

439

1140

658
 
 

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