Circuit Requirements for Electrical Equipment

How to Determine if your Equipment Requires a Dedicated Electrical Circuit to Prevent Circuit Overload

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Dedicated Circuit Requirements for Electrical Equipment
Question: We have a new electric frier for our cafeteria; its 208v/60/3ph, 47.2 amps, 17kw, for direct wiring. I’m told that it should have been ordered in 480v. Can it be safely wired to work by an electrician? Does he have to change the circuits and breakers to provide a safe hook-up?

This electrical question came from: Wayne, a Handyman from Columbus, Ohio.
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Dave’s Reply:
Thanks for your electrical question Wayne.

Understanding Electrical Circuit Requirements

How to Determine if  your Equipment Requires a Dedicated Electrical Circuit to Prevent Circuit Overload

• Wayne, the electric frier that you now have requires a dedicated circuit as specified by the nameplate, owners manual and the installation specifications.
• From my position I cannot be sure what the voltage is in your cafeteria.
• It is essential to know what the voltage is for your facility before the purchase, and realize that equipment such as this will definitely require a dedicated circuit due to the amount of electricity it will require.
• Yes, you will need to have a licensed electrical contractor install the necessary circuit for you.

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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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Home Electrical Wiring and Electrical Repairs Please Note: Unless otherwise posted, please refer to the following Guidelines when working on Electrical Projects: Skill Level: Intermediate to Advanced - Electrical Repairs and Circuit Wiring is Best Performed by a Certified Electrician or Licensed Electrical Contractor. Electrical Tools Required: Basic Electricians Pouch of Hand Tools, a Voltage Tester and a Multi Meter. Estimated Time: Depends on personal level experience, ability to work with tools, work with electrical wiring, and the available access to the project area. Precaution: Identify the project circuit, turn it OFF and Tag it with a Note before working with the wiring. Important: Modifying existing electrical circuits or installing additional electrical wiring should be done according to local and National Electrical Codes, with a permit and be inspected.

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