New Home Wiring and Electrical Service Size
How to Calculate Home Electrical Service Sizes: The size of the home electrical service panel and the size of the electrical utility company transformer is determined by creating a list of all of the projected electrical loads, the proposed equipment that will be connected to the circuits, the efficiency factors of this equipment, and the designations for the total building space.
Determining the Electrical Service Size for a New Home
Electrical Question: We are building a new home (2000 sq. feet) on an acreage with no electrical services currently in existence.
- We have a shop going up also, 60×90.
- We use air conditioning, central vacuum, hot tub, above ground pool.
- The power company is recommending a 50 KVA transformer, is this too large/too small or just right for sizing? Looking for confirmation!
This electrical wiring question came from: Lisa, a Homeowner from Medicine Hat, Canada.
Thanks for your electrical wiring question Lisa.
How to Calculate Home Electrical Service Sizes
- The size of the home electrical service panel and the size of the electrical utility company transformer is determined by creating a list of all of the projected electrical loads, the proposed equipment that will be connected to the circuits, the efficiency factors of this equipment, and the designations for the total building space.
Electrical Utility Company and Home Electrical Services
- In most cases, the electrical utility company is responsible for installing and maintaining the transformer, and the delivering the electrical utility power within limits and specifications.
- Personally, I would rather have a larger transformer than one that is too small, as it is the specified transformer should provide about 200 amps of power, which is most likely the size of the specified main electrical panel for the home.
More about Home Electrical Service Panels
House Wiring Circuits and Circuit Breakers
- This article looks at common 120 volt and 240 volt house wiring circuits and the circuit breakers that are installed identifying the types and amperage sizes used in most homes.
Electrical Panel Circuit Listing
- Home Electrical Circuits
Electric Circuit Listing
- 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.
Home Electrical Wiring
- Basic Home Wiring Diagrams with Pictures
The following may also be helpful for you:
Be Careful and Be Safe - Never Work on Energized Circuits!
Consult your Local Building Department about Permits and Inspections for all Electric Wiring Projects.
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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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