Is This Permissible?

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chris1971

chris1971

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This is a single family home with a detached garage.

The overhead mast and meter are on the detached garage. No panel inside detached garage. From meter on garage is an underground pvc pipe with the service entrance conductors going to the main electrical panel in the house. Detached garage is then fed from house panel with 1, 20, 120 volt branch circuit.
 
Residential isn't my field, but I've seen that done many times when line of sight to the house is obstructed by another out building. Obviously the sub panel in the garage being fed from the house is correct.

Jason
 
What would be the issue of doing it this way? No different than having a meter on a pedestal away from the house.


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As I read 225.30 the one circuit back is allowed (with exceptions).
(under the '14 Coded you might need to make that one circuit a MWBC as no other outlets outside of the garage can be supplied by the garage branch circuit)
 
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augie47 said:
As I read 225.30 the one circuit back is allowed (with exceptions).
(under the '14 Coded you might need to make that one circuit a MWBC as no other outlets outside of the garage can be supplied by the garage branch circuit)
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But the service does not supply the garage directly. The garage feeder from the house is the garage supply and falls under "additional building or structure supplied by feeder or branch circuit" rules. The one circuit back rule applies only if running a circuit from the garage back to the house... IMO :D
 
Smart $ said:
But the service does not supply the garage directly. The garage feeder from the house is the garage supply and falls under "additional building or structure supplied by feeder or branch circuit" rules. The one circuit back rule applies only if running a circuit from the garage back to the house... IMO :D
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I agree. I read, or misread, the OP thinking there was service equipment in the garage.
 
chris1971 said:
This is a single family home with a detached garage.

The overhead mast and meter are on the detached garage. No panel inside detached garage. From meter on garage is an underground pvc pipe with the service entrance conductors going to the main electrical panel in the house. Detached garage is then fed from house panel with 1, 20, 120 volt branch circuit.
Click to expand...

Are the mast, meter socket and PVC pipe (heading into the ground) all on the outside of the garage? If they are, they haven't "entered" the structure and there is no requirement for a service disconnect in them at the garage.
 
al hildenbrand said:
Are the mast, meter socket and PVC pipe (heading into the ground) all on the outside of the garage? If they are, they haven't "entered" the structure and there is no requirement for a service disconnect in them at the garage.
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Al,

That's how the service is set up.
 
chris1971 said:
This is a single family home with a detached garage.

The overhead mast and meter are on the detached garage. No panel inside detached garage. From meter on garage is an underground pvc pipe with the service entrance conductors going to the main electrical panel in the house. Detached garage is then fed from house panel with 1, 20, 120 volt branch circuit.
Click to expand...


You need grounding electrodes on the garage, since it's mounted to a structure.
 
al hildenbrand said:
First we've gotta know the Code cycle under which the service was assembled.
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Really? What code cycle ever addressed the OP's situation? Has there ever been a more stringent requirement for the service GEC connection location than there is now (250.24)?

I can tell you I've checked back through 2008 and by implication through 2005 and I see nothing that would clearly require a grounding electrode system at the garage.
 
My question would be why would you want to do it that way, though it sounds like it is something already been done.

Don't think you really save much if the reason is to not have to run an EGC with the feeder to the house, it will be offset by cost of whatever is run back to the garage, plus you have limited power available in the garage even though the service conductors (with more capacity) are attached to the garage. Just put in a meter/main with 8 space loadcenter and there is capacity for more circuit in the garage if ever necessary - or even easy to run another outbuilding, outlet pedestal, yard light, etc from this panel.
 
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