Electric Circuit Listing
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Summary: The size of the home electrical service panel is designed by calculating the square footage of the home and factoring in the code requirements for the electrical circuits that are required.
© By: Dave Rongey
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Electrical Wiring Circuits for a Typical Family Home
This electric circuit listing is based on a single family home of 3000 square foot with the following electrical loads:
1- 12 kw electric range
20 kw of electric space heating (1 central elect. heating unit)
1- 5 kw electric water heater
1-central air conditioner, 9 kw
1- dishwasher, 1 kw
1- disposal, 0.9 kw
1- electric clothes dryer, 4500 watt
Electric Circuit Listing - Home 3000 sq. ft.
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| NEC Ref. |
Circuit |
VA |
Breaker |
| 220-3a |
General Lighting, 3000 sq ft x 3 watts = 9000 |
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1-pole 15 |
| 220-16a |
2 Small Appliance, 1500 ea= 3000 |
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1-pole 20 |
| 220-16b |
Laundry (Washing Machine) = 1500 |
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1-pole 20 |
| T 220-11 |
Total General Lighting, Small Appl., Laundry = 13500 |
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| T 220-11 |
Apply Demands, 1st 3000 watts |
3000 |
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| T 220-11 |
Balance(10500 watts) at 35 percent |
3675 |
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| 220-18 |
Dryer (minimum 5k) |
5000 |
2-pole 30 |
| 220-19 |
Range (from col C) |
8000 |
2-pole 50 |
| 220-17 |
Add Fixed Appliance x 100 percent (not more than four) |
6900 |
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| 220-21 |
Larger of Heat / Air Conditioning |
20000 |
2-pole ** |
| VA |
Total |
46575 |
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| Amps |
Divide by 240 (volts) = |
194 |
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| 310-15(b)6 |
200 Amp service wire: |
2/0 copper |
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15 amp circuit = 1800 watts
20 amp circuit = 2400 watts
Home Electrical Circuits |
Additional Electrical Circuits:
Note:
Smoke Detectors are not required to be on a dedicated circuit. Smoke detectors are typically shared on a lighting circuit such as the hallway lights, this way if the circuit is off for any reason it will be noticed.
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Be sure to get your copy of my NEW Book:
Be sure to get your copy today:
Perfect for Homeowners, Students and Electricians
Includes:
Home Electrical Wiring - Room by Room
120 Volt Circuits
240 Volt Circuits
Multi-Wired Circuits
Wiring Methods for Installing Home Electrical Circuit Wiring
Electrical Codes for Home Electrical Wiring
....and much more.
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Questions about Home Electrical Circuits
Robert in Delaware asks:
Electrical Circuits
What circuits have to be wired with 12-2 wire?
Dave’s Reply:
Home Electrical Circuits
12-2 Type-NM cable is rated at 20 amps, therefore this cable is typically used for general purpose branch circuits such as kitchen GFCI outlets. However 12-2 Type-NM cable is also used for dedicated circuits for various small equipment such as a whole house vacuum system or a clothes washer.
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Electrical Tips to Help You Wire it Right
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The Safest Way to Test Electrical Devices and Identify Electric Wires!
The Non-Contact Electrical Tester
This is a testing tool that I have had in my personal electrical tool pouch for years, and is the first test tool I grab to help identify electrical wiring. It is a Non-contact tester that I use to easily Detect Voltage in Cables, Cords, Circuit Breakers, Lighting Fixtures, Switches, Outlets and Wires. Simply insert the end of the tester into an outlet, lamp socket, or hold the end of the tester against the wire you wish to test. Very handy and easy to use.
The Quickest Way to Check for Faulty Electrical Wiring!
The Plug-In Outlet Tester
This is the first tool I grab to troubleshoot a problem with outlet circuit wiring. This popular tester is also used by most inspectors to test for power and check the polarity of circuit wiring.
It detects probable improper wiring conditions in standard 110-125 VAC outlets
Provides 6 probable wiring conditions that are quick and easy to read for ultimate efficiency
Lights indicate if wiring is correct and indicator light chart is included
Tests standard 3-wire outlets
UL Listed
Light indicates if wiring is incorrect
Very handy and easy to use.
Strip Off Wire Insulation without Nicking and Damaging the Electric Wire!
The Wire Stripper and Wire Cutter
My absolute favorite wire stripping tool that I have had in my personal electrical tool pouch for years, and this is the tool I use to safely strip electrical wires.
This handy tool has multiple uses:
The wire gauges are shown on the side of the tool so you know which slot to use for stripping insulation.
The end of the tool can be used to grip and bend wire which is handy for attaching wire onto the screw terminals of switches and outlets..
The wire stripper will work on both solid and stranded wire. This tool is Very Handy and Easy to Use.
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Electrical Parts to Help You Wire it Right
Residential Electrical Parts and Accessories
Light Switches
120volt Outlets
Circuit Breakers
Electrician Tools
Voltage Testers
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