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Service Voltage <br />240 <br />Section 220.83 Existing Dwelling Unit <br />Part #1 - Section 220.83 (B)(1) General Lighting/Receptacles @ 3 VA per sq ft: <br />Amps Box A (VA) <br />55.73 13374 <br />Part #2 - Section 220.83(B)(2), (3)a, b, c, d - Appliances and Dedicated Circuits: <br />Size in VA Size in VA <br />1500 <br />1500 <br />1500 <br />1000 <br />600 <br />1000 <br />1600 <br />9600 <br />9600 <br />5760 Amps Box B (VA) <br />140.25 33660 <br />Total VA from Parts #1 and #2 combined:Box A + Box B =47034 <br />Total VA 47034 <br />First 8000 VA @ 100%8000 Remaining VA @ 40% <br />Remaining VA =39034 39034 x 40% =15613.6 VA <br />Adding First 8000 VA, if possible 8000 VA <br />Total VA for Gen. Lights/Recep, Appliances & Dedicated circuits:23613.6 VA <br />Total AMP for Gen. Lights/Recep, Appliances & Dedicated circuits:98.39 Amps <br />Part #3 - Section 220.83(B) Heating and A/C loads: <br />*Combine the larger loads of either the Heating or the A/C loads togther <br />100% of all the Heating or A/C loads in VA:13,872 VA <br />100% of all the Heating or A/C loads in Amps:57.80 A <br />VA Volts Amps <br />Parts #1 & #2 23613.6 240 98.39 <br />Part #3 13,872 240 57.80 <br />Total VA for all Parts:37,486 <br />Totals Service/Feeder Load 156.19 <br />Dedicated circuit Dedicated circuit <br />Article 220 - Dedicated Backup Panel Calculation Job Code <br />3340 S Crawford Gln, Santa Ana, CA 92704 109R-340SAMP <br />Building Square Footage VA (watts)Amps <br />House 4458.00 13374 55.73 <br />Total for Part #1: <br />Laundry <br />Appliance Circuit - 1 <br />Appliance Circuit - 2 <br />Dishwasher <br />Disposal <br />Refrigerator <br />Microwave <br />Oven <br />EV Charger <br />Spa/Hot Tub Totals for Part #2: <br />Totals from all Parts <br />3340 S Crawford <br />Glen4/28/2025