Detached building residential question.

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ritelec

ritelec

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Jersey
I still can't get this detached building (garage/shed) together in my head.

I'm planning on running a feeder to the building for a panel and will give the owner the option of mc or nm in the residence to feed the exterior incase he thinks about putting in a pool someday.

If he wants a light on the detached building with a 3 way between the house, I still don't know how to handle that.

From what I understand, I don't think the feeder can supply a circuit coming back to the building it originates from.

And as far as a light on the detached building (or two lights... one on detached building and one on the house) operated from 2 3-way switches and the circuit coming from the house.

Is that permissible? The switch in the shed would act as a disconnect but it's a 3-way?? Would I also have to add a single pole inside or outside??

I'll open the book again, but I'm not getting it?


any advise much welcome.


(as I side note (question). for the panel, is it treated like the main ground rods.. just install two and be done with it? Or is 1 expectable?)

Thank you
 
For a feeder or branch circuit supplied by detached structure, refer to second paragraph of 225.30 general requirement.

When it comes to outside lighting, 225.30(D) permit any number of circuits for controlling such.

If no other electrodes exist, install two rods and be done.
 
OK Smart $, I need to decide whether to admit that you beat me to the draw or delete your comment so that nobody can see that you beat me to the draw. Decisions, decisions. :lol:
 
charlie b said:
OK Smart $, I need to decide whether to admit that you beat me to the draw or delete your comment so that nobody can see that you beat me to the draw. Decisions, decisions. :lol:
Click to expand...

Perhaps we can change the "order" of the responses :D
 
As for the 3-way, Leviton use to make a system, others do now, to control the light/lights electronic way. Wired a true log cabin (2,500 square feet) years & owner decided to switch light at barn from house (around 200 feet of ditching). We used the Leviton system in the cabin, so did it for the light. Signal traveled over the neutral wire back then, some 400 feet. Salesman had seen application where it traveled over 1/2 mile. There are similar systems still available.
 
charlie b said:
The second paragraph of 225.30 appears to allow what you are describing.
Click to expand...

Actually, I don't think so,

The first part says only one feeder or branch circuit from the original building to the outbuilding.

The second part says one feeder or circuit can supply power back to the original building from the other structure..

Like I said,,

I don't get it..

Two buildings..

Building one feeds building two with one circuit..
Building one and two have a light and each have a 3 way switch, for those two lights.

Is this possible?... it used to be before they started with this..



Building one feeds building two with one circuit..
Building one and two have a light and each have a 3 way switch, for those two lights.
Building two has a receptacle either on the same circuit or different (mwbc)


Is this possible?... it used to be before they started with this..


Building two has a sub panel fed from building one.
Building one also feeds building two with one circuit..
Building one and two have a light and each have a 3 way switch, for those two lights.



I don't get it...

should I tell the guy he can't have any control for lighting at his house and shed..

should I tell him to get a generator... or some candles?


MAN

???
 
Even without the explicit exemption it is MHO that as long as the light and the switch(es) are not inside both buildings there would not be a problem.
Example: house feeds panel in barn.
Light switch inside barn feeds multiple lights on outside of barn and along path from house. Last light in the run is over door to house and other three way is outside the door in a Bell box. Circuit never reenters or "supplies" the house.
 
GoldDigger said:
Even without the explicit exemption it is MHO that as long as the light and the switch(es) are not inside both buildings there would not be a problem.
Example: house feeds panel in barn.
Light switch inside barn feeds multiple lights on outside of barn and along path from house. Last light in the run is over door to house and other three way is outside the door in a Bell box. Circuit never reenters or "supplies" the house.
Click to expand...
Without the exemption, ONE feeder or branch circuit is permitted to return to the source building... with no restriction on equipment location.

With the exemption of (D), any number of circuits for OUTSIDE lighting are permitted... with no restriction on control device location.
 
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