Hendrix
Senior Member
- Location
- New England
Will someone please guide me to the section of the NEC that says that one tennant can not supply power to another. Thanks in advance.
What article ?
- Thread starter Hendrix
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hardworkingstiff
Senior Member
- Location
- Wilmington, NC
I don't know if this is what you are thinking about, but try 230.3
Hendrix
Senior Member
- Location
- New England
Thanks but that's not it. The senereo would be having to install a house meter and separate all branch circuits to supply only one teneant. If common areas exist, the landoord is responsible for the "house electricity".
mcclary's electrical
Senior Member
- Location
- VA
240.24 (b)
Hendrix
Senior Member
- Location
- New England
Still not what I'm looking for.
Hendrix
Senior Member
- Location
- New England
Thanks Roger, that's it.....
mcclary's electrical
Senior Member
- Location
- VA
Can you post that? I'm on '05 it.'s not there
hardworkingstiff
Senior Member
- Location
- Wilmington, NC
Getting a bit technical here, but it looks like those articles are just saying you can't have a branch circuit supplying two different dwellings, but it doesn't seem to prevent one panel feeding individual branch circuits to different dwellings so long as each branch circuit only serves the one dwelling.
I have no idea why someone would want to do that, but it seems it is allowed.
Comments?
I have no idea why someone would want to do that, but it seems it is allowed.
Comments?
mcclary's electrical
Senior Member
- Location
- VA
hardworkingstiff
Senior Member
- Location
- Wilmington, NC
I don't see how this statement forces one to install an individual service for each dwelling unit, it just says you can't supply loads within or loads associated with different units from the same branch circuit.
Just call me Jim from FL. :grin:
Again, I don't know why anyone would want to do it (unless the landlord was willing to pay for all the electricity).
- Location
- Connecticut
- Occupation
- Engineer
If you had a panel in dwelling unit A, and ran a 20A branch circuit to dwelling unit B where it connected to receptacles in only unit B, you would have a branch circuit in A which is supplying load in B. That would be a violation.
hardworkingstiff
Senior Member
- Location
- Wilmington, NC
Yes it would, but what if the panel was on the outside of the building? I'm not trying to argue that you can do this, I'm just saying that this particular article does not prohibit it. I do believe there are other restrictions that won't allow it to be done, just not this article.
If you convert an old large house to multi-family then you include the electrical in the rent to avoid massive rewiring costs.
The section does not prohibit the presence of circuit B in unit A. It only prohibits the use of circuit B in unit A. The panel can be common as long as the individual branch circuits are dedicated to only one unit per circuit.
The part that says common power shall not be supplied from a common point bothers me. That seems to imply an extra meter in a multi-family residence even if the heat and air are common to the whole building.
- Location
- Connecticut
- Occupation
- Engineer
A panel outside the building would be fine, or maybe two dwelling units with a common corridor that had a panel in the corridor serving both dwelling units. These situations wouldn't violate 210.25, though as you say, it might violate other articles.
But a circuit from a panel in unit A feeding load in unit B would be a violation of 210.25. I would think even a branch circuit which comes from a panel in A, is routed into unit B and then back into A where it feeds receptacle outlets would be a violation because you would have a branch circuit "in" B which serves load "in" A.
- Location
- Connecticut
- Occupation
- Engineer
I disagree. It says that a branch circuit "in" each dwelling unit shall supply loads "in" that dwelling unit or associated with that dwelling unit. If a branch circuit serves load in B, then it is prohibited from being present in A.
The panel can be common if it is located in a common space, and the branch circuits are dedicated to each unit. You can't have a common panel in unit A with dedicated circuits for A and B. That would violate 210.25.
Read it again:
210.25 Branch Circuits in Buildings with More Than One Occupancy.
(A) Dwelling Unit Branch Circuits. Branch circuits in each dwelling unit shall supply only loads within that dwelling unit or loads associated only with that dwelling unit.
A circuit for unit A can be run through unit B. It's presence is not prohibited. It can supply only loads in unit A.
210.25 Branch Circuits in Buildings with More Than One Occupancy.
(A) Dwelling Unit Branch Circuits. Branch circuits in each dwelling unit shall supply only loads within that dwelling unit or loads associated only with that dwelling unit.
A circuit for unit A can be run through unit B. It's presence is not prohibited. It can supply only loads in unit A.
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