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Electrical Wiring for a Garage Panel

Wiring a Sub Panel for a Garage: Wire Size for a 100 amp Garage Panel, Factors that need to be considered when selecting and sizing the wire size for a sub panel.

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Installing a 100 Amp Panel for a Garage
[ad#block]Electrical Question: I need to install wire from the main service panel to a sub panel in the garage.

I have built a garage and need to run underground wire from the main 100amp service to a 100 amp sub panel in the garage.

This electrical wiring question came from: Philip, a Handyman from Valdez, Alaska.

Dave’s Reply:
Thanks for your electrical wiring question Philip.

Wiring a Sub Panel for a Garage

Skill Level: Intermediate to Advanced. This electrical project is best performed by a Licensed Electrician.
Tools Required: Trenching equipment for installing the underground PVC conduit for the cable to the garage sub-panel location, electricians pouch of hand tools and power tools for boring holes necessary for installing the conduit up to the panel.
Estimated Time: Depends on the level of experience, the method of trenching that will be used, and the available access to the project area.
Notice: Installing a panel to the Home Electrical System should be done with a permit and have all of the required inspections.

Wire Size for a 100 amp Garage Panel

The following is an example of the factors that need to be considered when selecting and sizing the wire size for a sub panel:

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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.

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One Response to “Electrical Wiring for a Garage Panel”
  1. Tim says:

    4 AWG