Separate building outside feeder

[electrofelon]

Not saying it is the correct thing to do but we have similar structures locally and our AHJ considers it one structure from an electrical standpoint other than requiring fire proofing between sections (buildings) and Art 225 does not come into play.

This would be my opinion as well. I'm not going to bring 225 into play just because it is two buildings "on paper"

 

[don_resqcapt19]

Yes MLO = main lugs only. The overcurrent protection would be in the switchgear

Are there OCPDs on for each meter?

 

[hhsting]

Are there OCPDs on for each meter?

Each meter has OCPD in meter stacks. The meter stack is fed from switchboard part II lower right

 

[hhsting]

From my limited experience when building codes talk about "separate buildings" they are referring to either fire separations or occupancy classifications. I wouldn't get hung up on those terms when looking at the electrical components.

What you are saying above worries me. Its not only building codes. Its in NEC.

Look at def of building NEC section 100: a structure that stands alone Or that is separated by adjoining structures by firewall.

Look at the def of structure NEC section 100: that which is built or constructed other than equipment

Now are parking garage and above floors structures (plural) or its structure ( singular)?

 

[Joe.B]

Thanks for the feedback, I appreciate it. I did say my experience was limited. When two buildings are built directly side by side with a true fire wall then they are built as independent structures so that one could collapse without pulling down the other, such as a townhome. If a "separate" building is build on top of a parking garage they are not structurally independent. If the parking garage fails, the whole building is likely to go down. Surfside Miami. When doing a building code analysis they will look at the parking garage as a "separate" occupancy type and building type and often you can get more area that way. That's what I was referring to when I said building codes look at it differently.

 

[hhsting]

Thanks for the feedback, I appreciate it. I did say my experience was limited. When two buildings are built directly side by side with a true fire wall then they are built as independent structures so that one could collapse without pulling down the other, such as a townhome. If a "separate" building is build on top of a parking garage they are not structurally independent. If the parking garage fails, the whole building is likely to go down. Surfside Miami. When doing a building code analysis they will look at the parking garage as a "separate" occupancy type and building type and often you can get more area that way. That's what I was referring to when I said building codes look at it differently.

Definition of building NEC 2017 after the or statement says “that is separated by adjoining structures by firewall.”

In that part their is no mention of structure standalone or not. From what I can tell that part can be stand alone or Not stand alone as long as their is firewall. However experts can please help me out here