Articles 225 and 230- Detached Gargae

[Dennis Alwon]

I do not want to have the last word here so
Dennis it?s all yours and the authorities In NC will have to figure out what they want to cite ,if anything for limiting or not limiting multiple supplies to buildings

Not me-- This is really a hypothetical case. Someone had asked me about it a few weeks ago and then I saw a plan where the concept came up again so I thought I would get a conversation going on it.

 

[kwired]

Of course a building can have two supplies, but that may not answer Dennis question?

In this area there are three different main utility companies. In one area ,years past there was a desperate need for housing, Many single family dwellings became duplexes, along with hundreds of apartments sprung up over the garage in the back. There were no building codes in this state and there is no fire separation.

There are hundreds of two family dwellings with two service drops one on the left and one on the right. Or front and back it doesn?t matter. The service drop hits a insulating knob on the front of the house feeds a meter at the front, The service drop continues to the back hits another knob on the back to use the dwelling as support before it spans again to the garage apartment in the back.

Nobody cared the utility company didn?t and the electrical inspector seen nothing that prevented the installation.

So yes of course a building can be supplied by multiple sources service laterals, service drops, feeders, and branch circuits, and it?s up to interpretation as to what limits those supplies.

If nothing else got accomplished at least the reader of this thread was challenged to think through their own understanding of what does limit the number of supplies or source of supplies to a building.

I do not want to have the last word here so
Dennis it?s all yours and the authorities In NC will have to figure out what they want to cite ,if anything for limiting or not limiting multiple supplies to buildings

The situation described here is specifically permitted by NEC and really has no relevance to the topic being debated.

I have said it before and the more I have thought about it the more I think there is nothing prohibiting two or more supplies to a building as long as they have some different characteristic about them making it necessary for them to be separate. If not allowed we could never have a building supplied by both a service and a standby generator (which will be either a branch circuit or a feeder and not a service), or would not be allowed to have PV, wind or other co-gen sources either.

 

[Dennis Alwon]

The situation described here is specifically permitted by NEC and really has no relevance to the topic being debated.

I have said it before and the more I have thought about it the more I think there is nothing prohibiting two or more supplies to a building as long as they have some different characteristic about them making it necessary for them to be separate. If not allowed we could never have a building supplied by both a service and a standby generator (which will be either a branch circuit or a feeder and not a service), or would not be allowed to have PV, wind or other co-gen sources either.

I think there are often more than one feed/service etc to buildings and no one thinks about it. However, when put in the context as I proposed then red flags went up. Interesting