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HomeMy WebLinkAboutElectrical Load Calculation Timberfalls 807_2.pdf NEC Standard Electrical Load Calculation for Dwellings 4516 MEADOW DRIVE Owner; MICHAEL McKELVEY Location: TIMBER FAT,T,S #807 Total Floor Area of Dwelling (NEC 220.12) 1 ,2 0 0 SQ FT. Factor Quantity Volt Amperes (VA) "General Lighting" 1. General Lighting(SQ FT X 3 VA/SQ FT(Table 220.12) 1 , 2 0 0 s.f. 3, 600 2. Small Appliance Circuits(1500 VA per circuit)(NEC 220.52(A))(min. 2) 2 _ 3 ,0 0 0 3. Laundry Circuit(1500 VA per circuit) (NEC 220.52(B)) 1 1 ,5.00 4. Total General Lighting Load(Add lines 1, 2& 3): 8, 1 0 5. First 3000 VA @ 100%: 3000 6. Total General Lighting Load—3000= [cr,} 35%= 1 7 8 5 7. Net General Lighting Load (Per NEC T. 220.42) (Add lines 5 &6): 4, 785 Appliances GARBAGE DISPOSAL 1 600 MTC'ROWAVE 1 1 , 500 DISHWASHER 1 1 , 200 REFRTC;F:RATOR 1 600 CLOTHES DRYER 1 5,000 STOVE 1 8, 000 Total 16 ,900 8. 3 or less Appliances, Total Appliance VA; 4 or more Appliances, 75%Total Appliance VA (NEC 220.53): 12, 675 Other Loads(other than motors) Nameplate Rating Adjusted Rating (VA) (VA) 9. 10. 11. 12. 13. 14.25% of largest motor(NEC 430.24) Total Volt-Amperes(VA) (Add lines 7,8 & 9 thru 14)= 1 4 , 4 6 0 Total Volt-Amperes/240-volts= Amperes 72 . 75 Conductor Size(Indicate Copper or Aluminum) #1 ALUMINUM Service Rating(Amperes) 1 00AMPS Note: See 2008 NEC<Annex D, Example D1