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Calculating Electrical Power Requirements

I am looking to lease a 5,000 sq ft building that has (2) 200 amp 3 phase 220/480 electrical panels feeding (1) 110/220 panel…


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Electrical Power Requirements for a Commercial Kitchen
Background: Sarah, a Homeowner from Eugene, OR
[ad#block]Question: I am looking to lease a 5,000 sq ft building that has (2) 200 amp 3 phase 220/480 electrical panels feeding (1) 110/220 panel.

My business will supply four kitchens with full functioning commercial equipment. Ovens, microwaves, stoves mixers and more.

Up to four computers and offices.

Some of the equipment that will be used:
1 3 hp walk in cooler compressor
2 domestic freezers
hot water heater
washer and dryer
possibly an elevator (small non functioning right now)

Is the current power supply enough to support my current needs? And if so, is there enough power to add on more power in the future?

Thank you so much for your web site. This is the first time I have been on it. I can see that I will be using it a lot!

Sincerely, Sarah

Dave’s Reply:
Thanks for your electrical question Sarah.

I have provided the following resources that lead to fully detailed information on this website that will assist you with your electrical question:

For more information about Troubleshooting
Troubleshooting Electrical Wiring

This link is helpful as a Homeowner
Do-It-Yourself Electrical


The following may also be helpful for you:

Dave's Guide to Home Electrical Wiring:

» You Can Avoid Costly Mistakes! «

Here's How to Do It:
Wire It Right with the help of my Illustrated Wiring Book

Great for any Home Wiring Project.
  electrical wiring  

Complete Guide to Home Electrical Wiring

Perfect for Homeowners, Students,
Handyman, Handy Women, and Electricians
Includes:
Wiring GFCI Outlets
Wiring Home Electric Circuits
120 Volt and 240 Volt Outlet Circuits
Wiring Light Switches
Wiring 3-Wire and 4-Wire Electric Range
Wiring 3-Wire and 4-Wire Dryer Cord and Dryer Outlet
How to Troubleshoot and Repair Electrical Wiring
Wiring Methods for Upgrading Electrical Wiring
NEC Codes for Home Electrical Wiring
....and much more.


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Be Careful and Be Safe - Never Work on Energized Circuits!
Consult your Local Building Department about Permits and Inspections for all Electric Wiring Projects.

Electrical Tips to Help You Wire it Right

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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FAQs Frequently Asked Questions and Comments

2 Responses to “Calculating Electrical Power Requirements”
  1. Meeran says:

    Hi friend, I have a small industry. Now I have a 20 machines like bending, cutting, and a punching machine. It’s all machines minimum 25tons weight.

    I am not start industry now only I will install.

    Now I ask my question.

    How to calculate power requirement.? I don’t have proper electrical requirements. So please explain completely.

  2. Dave Rongey says:

    Hi Meeran,
    The electrical panel size power requirement will be based on the number of machines that will be used at the same time. Each large machine will typically require it’s own dedicated circuit with overload protection. If the various machines will be used by more than one person then the electrical service panel will have a higher amperage demand at that given time, so the size of the electrical panel must support the total demand for all circuits that are used simultaneously.
    I hope this helps you with your machine shop,
    Dave