HomeMy WebLinkAboutLOAD CALCS.pdfQuantity Volt-Amps Demand Total (VA)
General
Dwelling unit Square footage 1440
General & Lighting (1st 3 KVA) 1000 SF X 3 X 100% = 3000
General & Lighting (Remainder) 440 SF X 3 X 35% = 462
Kitchen
Small Appliances 2 EA X 1500 X 35% = 1050
Refrigerator 1 EA X 1000 X 75% = 750
Dishwasher 1 EA X 1200 X 75% = 900
Oven/Range (Re:table220.19) 1 EA X 8000 X 80% = 6400
Disposal 1 EA X 1000 X 75% = 750
Microwave 1 EA X 1200 X 75% = 900
Laundry & Spa Appliances
Clothes Washer 1 EA X 1000 X 75% = 750
Clothes Dryer 1 EA X 5000 X 100% = 5000
Mechanical Equipment
Electric Baseboard Heat 30 LF X 250 X 100% = 7500
Mechanical Equipment
Exhaust Fans 3 EA X 50 X 100% = 150
Add'l 25% Largest Mech. Load 1 LS X 50 X 25% = 13
TOTAL 27625
For 208V, 1-Phase, 3 Wire Service 27625 (VA) / 208 = 133 AMPS
Optional Calc per 220.82 Dwelling unit
Volt-Amps Demand Total (VA)
First 10kva of loads 10000 100% 10000
Rest of loads 15870 40% 6348
Electric baseboard loads 7500 40% 3000
TOTAL 19348
For 208V, 1-Phase, 3 Wire Service 19348 (VA) / 208 = 93 AMPS
200 AMP SINGLE PHASE SERVICE
LANDMARK UNIT 211
Demand Load Calculations
(Per NEC Article 220 Parts I-III, Optional calc 220.82)
10/20/15