Another garage sub panel question


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Old 09-30-14, 12:18 PM
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Another garage sub panel question

I have read many of the posts here, just wanted a bit more advice. I need to run 165 ft from my main panel to my RV garage. Its mainly for keeping the battery charged in the RV, a few lights and a few plugs. No plan to run the ac units on the RV, so I figured 50 amps would suffice. I have conduit already run under the driveway.

Would this wire suffice: 6/3 W/ GROUND ROMEX SIMPULL WIRE. THIS WIRE HAS 3 INSULATED CONDUCTORS AND 1 BARE GROUND CONDUCTOR AND IS RATED FOR 60 AMPS.

BTW, I am located in TX, in an area with no inspections. I will do this myself, Just want to be safe and get others opinions....
 
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Old 09-30-14, 12:22 PM
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Type NM cable cannot be used outdoors, even if in conduit.
 
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Old 09-30-14, 12:39 PM
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okay, got it...no NM..this appears to be suitable: 2-2-2-4 Aluminum SER Wire..?
 
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Old 09-30-14, 12:43 PM
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It is best practice to use individual conductors such as THWN not cable. (Cable, especially that large, can be hard to pull.) You would need one #6 white, two #6 black*, and one #10 green. Conduit must be buried 18" minimum.

*You can use one black, one red instead of two black but color doesn't really matter as long as it isn't white gray or green.)

Are you planning to use a 100 amp Main Breaker panel for the subpanel?
 
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Old 09-30-14, 01:04 PM
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OK....THWN it is, the same thing I used years ago when I ran a panel for my hot tub. I used all black then as that was all Home depot had.....same thing now, all they show online per foot is black, the #10 is available in green....

I planned on using a 50 amp breaker sub panel.

I used white tape to mark the ends....do you see any issue with that?
 
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Old 09-30-14, 02:57 PM
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Conductors smaller than #4 are supposed to have the correct color insulation. Re-identification is allowed on larger conductors with tape or paint.

Given the loads you listed a panel with a 20 or 30 amp feed would suit your needs.
 
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Old 10-01-14, 07:15 AM
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OK....THWN it is, the same thing I used years ago when I ran a panel for my hot tub. I used all black then as that was all Home depot had.....same thing now, all they show online per foot is black, the #10 is available in green....
I'd be willing to bet that the store actually stocks colors in the #6 THHN/THWN wire even though they may only show black on their website. Why not call them and ask?
 
 

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