Wiring an attached garage on LI, NY

levittownnick

Senior Chief Petty Officer
Joined
Jul 2, 2003
Messages
789
My daughter is in the process of having an attached garage built. The common wall requires a fire rated 5/8" sheetrock. The circuit breaker panel is in the living space side of this wall so the wall will have wiring through it. I would like to put a small sub-pannel in the garage on this wall about opposite the main panel.

The big questions.
1) What is the minimum capacity sub-panel that can be used?
2) If the wall is pierced with conduit, can THHN be run through this conduit?
3) Is a fire rated sub-panel required? Is there such a thing as a fire rated panel?
4) What else do I have to know? (All outlets will be GFCI protected.)
5) Must I use AFCIs?
 

arks

Lieutenant Commander
Joined
Nov 7, 2002
Messages
1,945
Re: Wiring an attached garage on LI, NY

OK, I'll try. I'm NOT an electrical contractor, but a commercial general contractor with some electrical knowledge. And you know what they say about "some" knowledge.....

1) What is the minimum capacity sub-panel that can be used?
-Depends on how much load you'll have. If you're just doing lights and some conveinience recepticles a 30A would suffice, but will not allow for any future circuits. It's best to oversize a little- the cost is minimal.

2) If the wall is pierced with conduit, can THHN be run through this conduit?
-Yes, that's what THHN is designed for. Do not overload the wire capacity inside the conduit. Romex should never be run inside a conduit.

3) Is a fire rated sub-panel required? Is there such a thing as a fire rated panel?
-No such thing that I'm aware of.

4) What else do I have to know? (All outlets will be GFCI protected.)
-GFCI recepticles are not required everywhere, just within 10' of a water supply. GFCI's can be daisy-chained with a regular recepticle if desired (to protect both).
-In your main (house) panel, add a breaker of sufficient capacity to feed the sub-panel, and make sure the wiring to it is adequate.
-If you're not getting a permit (and YES you should), get a qualified electrician to do the work, or at least thoroughly check your work before energizing.

5) Must I use AFCIs?
-Depends on your local building code. Not a bad idea but they are expensive.

Good luck but be careful with electical work.
 

levittownnick

Senior Chief Petty Officer
Joined
Jul 2, 2003
Messages
789
Re: Wiring an attached garage on LI, NY

Thanks arks. Sounds like good advice. I have lots of electrical experience, but not with house wiring (I am very familia with GFCIs, AFCIs, some dimmers and a whole bunch of other stuff, just not building codes.) I think you gave me enough information to go on. This forum is great for this type info.

Thanks,
Nick
 

arks

Lieutenant Commander
Joined
Nov 7, 2002
Messages
1,945
Re: Wiring an attached garage on LI, NY

Your quite welcome Nick. Glad I could help.

Hey, I sold my prevoius boat a few years back to a guy near you (Hempstead maybe...). If you ever see a blue/ white Wellcraft 23 Nova XL with the name "Beats Workin' " on the transom, say "HI" to Freddy for me! He's a nice guy- and got himself a great boat.
 
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