Disconnects on detatched building

Status
Not open for further replies.
E

e2me

Member
Location
South Dakota
OK so I have a contractor that is building a 6 pl ex each with a detached garage unit. These garage units are all attached to each other but detached from the apts. He wants me to install a recpt and light in each garage but run from each units panel.I cant figure a way to do this. Each garage unit is not fire rated as a individual unit so I cannot just place a disconnect on each as it is considered one structure and each structure can only have one service.
If I can get him to fire rock them as to create 6 separate structures then I could bring a pipe with 6 circuits out to the first garage and run pipe to each on the outside with disconnect on each is the only thing I can come up with any other ideas.

:-? Thanks
 
How about an 8-space 125A MDP from a house panel on the sixplex? 3 branch circuits for the six bays, plus an outside lighting circuit.
 
Ask the inspector if separate feeders or branch circuits that are on different meters are considered "different characteristics".

Another option would be to install a 3-way switched circuit between the garage and its respective apartment (I think you'd have to put the receptacle on this switched circuit too). Switching from multiple locations is a specific different characteristic listed.
 
All six will need a disconect grouped together.I would talk with the inspector first.It makes a conflict with code by having building served by more than 1 service.Best way is to put them on a house meter.Someone posted a similar problem a few months ago.
 
A feeder is not a service. You may run the six feeders to the structure and then install the six disconnects grouped together in a single location (could be on the exterior of the building). There is nothing in the NEC that would prohibit six feeders to a building.
 
225.30 Number of Supplies
Where more than one building or other structure is on the same property and under single management, each additional building or other structure that is served by a branch circuit or feeder on the load side of the service disconnecting means shall be supplied by only one feeder or branch circuit unless permitted in 225.30(A) through (E).

I guess I type too slow....... but here is 225.30 (in part)

Pete
 
225.30

225.30

]Ask the inspector if separate feeders or branch circuits that are on different meters are considered "different characteristics".

They may not be different characteristics. but they are different feeders or branch circuits and the building is still being feed by more than one as
pete has stated .this is the problem that I see also as a detached building may only have one and since all the garages are hooked together it is considered one building. And the owner doesn't want a house panel all units are on their own panel with no common circuits . I'm kind of perplexed as to how to solve the problem unless he fire rocks between the garages there by creating individual units to which then I may find a answer but the cost is his stumbling block.
 
E2me,

I wouldn't do anything until meeting with the IE, He is the one that can tell

you or the GC what is going to have to be done to make this pass an

inspection. JMO
 
e2me,

Read through _all_ of 225.30, both the limitation to a _single_ feeder or branch circuit, and the permissions that say when you may have more that one feeder or branch circuit. I'd also go back and read through the relevant definitions in article 100, for feeder and branch circuit among others. Don't just focus on the prohibitions. Think about the possibilities, then as Frank suggests, talk to the inspector and as necessary the AHJ.

I think that Mark has the approach to take: convince the inspector that you fall under 225.30(D), which permits separate circuits for different characteristics, and specifically lists _switching_ as an example of such.

A couple of other points, which IMHO are weaker than Mark's suggestion, but at least possibilities to discuss with the inspector:
225.30(C)(1) which talks about multiple occupancy buildings.
What does it mean to be 'under the same management' in the first paragraph of 225.30?

-Jon
 
This may be a stretch so a conversation with the AHJ will be in order.
225.30 refers to a building under single management. This building is not under single management, each owner manages their "space". Also look at 225.35 which indicates that in a multiple occupancy building each occupant must have access to the disconect for their occupancy, which seems to allow multiple disconnects. This would be similar to 230.40 Exception No. 1 which allows a set of service entrance conductors to be run to each OCCUPANCY. Substitute FEEDER for ENTRANCE CONDUCTOR and you will see what I am trying to say.
 
Status
Not open for further replies.
Top