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Electrical Power Design for a Garage Workshop


By Dave Rongey - Summary:

How to Install Wiring for a Garage Workshop: Circuit Design for a Garage Workshop, Planning Electrical Wiring.

Wiring a Garage Workshop

Electrical Question: I am planning a workshop in my garage where I will have 220 volt equipment.

Workshop Wiring Project
I am building a home hobby workshop to run a 220volt, 2hp industrial lathe, stick welder, and 2HP sander.

Each machine will be appropriately fused at the ON/OFF machine switch, so the 30 Amp dryer breaker will not play a role (of being over rated) on a 5 Amp, or 20 Amp machine for example.

I would like to make use of a 220volt 30amp dryer circuit in my garage. Bring the 220Volt, 10/2 drier cable into an industrial electrical enclosure (6 x 8 x 5) from the laundry room into the garage (laundry room and garage are back to back), the Cable will be connected VIA  Hubbell HBL7810D Disconnect Switches, 30 Amp 600V, allowing me to switch between the dryer and garage.

My last resort is to run a short extension into the laundry room, through an access hole in the wall and use the Dryer Plug as required when working in the garage. An extension cord is classified a temporary installation, needs no inspection, although it is somewhat inconvenient.

This home electrical repairs question came from: Svata, from Brampton, Ontario, Canada.

Dave’s Reply:
Thanks for your home electrical question Svata

Power Design for a Garage Workshop

Application: Wiring a 30Amp Sub Panel for a Workshop.
Skill Level: Intermediate to Advanced – Best performed by a licensed electrician.
Tools Required: Electricians pouch of hand tools and the various power tools necessary for installing the garage sub panel.
Estimated Time: Depends on the type and size of the panel and available access to the project area.
Precaution: Any existing electrical wiring within the immediate area that may interfere with the installation of the sub panel should be identified and turned OFF and Tagged if necessary.
Notice: Installing additional garage electrical wiring and a sub-panel should be done according to local and national electrical codes with a permit and be inspected.

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Learn How to Wire it Right with my
Complete Guide to Home Electrical Wiring
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Includes:
Wiring GFCI Outlets
Wiring Home Electrical Circuits
120 Volt and 240 Volt Outlet Circuits
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
Electrical Codes for Home Electrical Wiring
....and much more.

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