Feeders under a townhome

[Sifu]

A townhouse building with multiple units has a meter bank and first point of disconnect at one end. Can the feeders to the unit panels run under the slab on grade? I can't find a prohibition, only conditions for service entrance conductors (not feeders). Otherwise the criteria in article 300 applies? This is a question from another AHJ that is not permitting it. I am not in the electrical arena any more, and was never an expert so forgive me if this is a stupid question.

 

[jar546]

Are the buildings R2 rental units or different lot lines and separately owned?

 

[jar546]

BTW I agree with the AHJ and would not permit this. The Florida Building Commission provided an interpretation for this and since each townhouse is a separate lot, they each need their own utility without crossing the property lines of others or providing a disconnect on someone else's property. If these are R2 rental units with one property line and an owner, then that is another story.

 

[Sifu]

Not sure about these specific units but I assume they are individually owned. Aside from a Florida interpretation or amendment, is their an electrical code that would not permit this?

 

[Paul Sweet]

If the units are individually owned there would have to be easements for all utilities running through a unit to serve another, so that a unit owner couldn't tear up these utilities (accidentally or on purpose).

 

[Sifu]

Looking for a code citation. Looking in NEC 215 and 230 I can't find a prohibition.

 

[redeyedfly]

I don't think this is an electrical code issue. It depends on the definition of IRC-3 in your jurisdiction.