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Old 08-27-2013, 09:13 AM   #1
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Detached Garage Subpanel wiring


I have 220/40 amp UV and underground rated wire 18" deep run to my new garage in Lake County Minnesota. Hopefully you fine professionals can answer a few questions before I drill a hole through the side:

Is there a height from ground requirement for my schedule 80 to enter the structure?

Is there a height requirement for the sub-panel inside the garage?

Once through the wall must the feed line enter through the rear of the sub panel or can it feed through the bottom of the panel?

Once inside, must the portion of the line also be encased before entering the sub-panel or can it be simply secured with a panel clamp?

Is there an upside down for the panel? Can it be mounted with the Main breaker at the bottom of the box?

I appreciate and humbly bow to those offering wisdom on the subject...

Finlandbob

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Old 08-27-2013, 09:23 AM   #2
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Detached Garage Subpanel wiring


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Originally Posted by finlandbob View Post
I have 220/40 amp UV and underground rated wire 18" deep run to my new garage in Lake County Minnesota. Hopefully you fine professionals can answer a few questions before I drill a hole through the side:

Is there a height from ground requirement for my schedule 80 to enter the structure?
NO!

Is there a height requirement for the sub-panel inside the garage?

Once through the wall must the feed line enter through the rear of the sub panel or can it feed through the bottom of the panel?
Either or.

Once inside, must the portion of the line also be encased before entering the sub-panel or can it be simply secured with a panel clamp?
Is it a cable or individual conductors? If it is a cable, the it does not need to be in pipe.

Is there an upside down for the panel? Can it be mounted with the Main breaker at the bottom of the box?
Some do, some don,t.

I appreciate and humbly bow to those offering wisdom on the subject...

Finlandbob
Did you run 3 wires and a ground out to the garage?
You also need 2 ground rods at the garage, and make sure you separate the grounds and neutrals in the panel.

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Old 08-27-2013, 09:27 AM   #3
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Detached Garage Subpanel wiring


If the breaker operates horizontally there is no upside down. If it does not, UP needs to be ON.
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Answers based on the National Electrical Code. Local amendments may apply. Check with your local building officials.
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