Ppliance Requirements e or Equipment Typical Wattage Usual Voltage Wire Size App

Question

Ppliance Requirements e or Equipment Typical Wattage Usual Voltage Wire Size Appliance or Equi Recommended 20000 Btu Air Conditioner 2500 Band Saw Protection 120/240 120 120/240 120 120 120 120/240 athroom Heater 12 2000 300 Coffee Maker 12 12 ehumidifier Dishwasher 1200 20 amp Dryer (electric) DVD Play 20 am 30am 24 1200 12000 800 120,240 | 10 12 12 an tric Eletric Range with Oven Furnace 120 240 olrage Door Garage Door Opener Garbage Disposal 50-60 am 20 amp 20 am 120 120 120 120 120 120 120 120 120/240 120/240 120 120 120 120/240 120 120 120 120 120 120 12 12 12 Hand Iron Home Computer Home Freezer roner Microwave Oven 1100 20 amp 20 amp 20 am 145 12 12 12 10 10 12 12 12 12 1500 1450 5000 5000 Range Oven (separate) Range Top (separate) Refrigerator Roaster 1400 1400 1000 20 amp 20 amp 20 amp Table Saw Television 20 amp 12 1000 400 1000 12 12 10 20 am 20 am 20 amp 20 amp Goodheart-Wicox Pblisher Waffle Iron Water Heater 2000-5000 21-3. This table shows the typical requirements for common appliances. Refer to the manufacturers s for actual usage. Co., Inc.

Explanation / Answer

Given: 3 Watts per square foot for lighting circuits.

so it is 6000W for a 2000 square foot house.

A nominal value of 1,500 watts is used for each 20-amp small-appliance circuit, So for kitchen- 3000W and for workshop- 1500W

Electric range with Oven-12000W, Refrigerator- 300W, Washer- 700W, Electric Dryer- 5000W, Dishwasher- 1200W, Garbage Disposal- 300W, Furnace- 800W, Water heater- 2000W

We probably aren’t running your welder and your saw at the same time.Total estimate is about adding the above all wattages i.e., 6000+3000+1500+12000+300+700+5000+1200+300+800+2000= 32800W

Now all of those things are not operating at one time. We take 100% of the first 10,000W, and 40% of the balance.So taking 40 percent of the amount over 10,000 watts (0.40 x 22800 = 9120 watts). Adding the 10,000 watts to the 9120 watts gives a total of 19120W.

General Voltage value is 240V

Amperage= Power/Volts

Amperage= 19120/240 ~= 80W

It is good practice to have 25% margin, so 125% of 80 Amps = 100 Amps.

Therefore the load is 100Amps

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