Multi stories apartment complex building

[hhsting]

I have 5 stories apartment complex building with three additional stories below grade p1,p2,p3 for parking. The service switchboards are located From their cables go up each floors to meter stacks.

I was told that those cables would need to be run inside a stack enclosed 2 hours rated from p3 all the way to fifth floor. However i do not see this in NEC 2017 anywhere. Is it in their code and sections?

 

[petersonra]

That kind of thing is not typically found in the national electrical code but in other building codes.

 

[electrofelon]

I have 5 stories apartment complex building with three additional stories below grade p1,p2,p3 for parking. The service switchboards are located From their cables go up each floors to meter stacks.

I was told that those cables would need to be run inside a stack enclosed 2 hours rated from p3 all the way to fifth floor. However i do not see this in NEC 2017 anywhere. Is it in their code and sections?

No it's a building code issue, presumably to prevent fire having a convenient chase up thru the building. Approved fire stopping at each floor may be allowed, but I don't know what your building code says.

 

[hhsting]

No it's a building code issue, presumably to prevent fire having a convenient chase up thru the building. Approved fire stopping at each floor may be allowed, but I don't know what your building code says.

Building code we have is IBC? Or are you saying something different?

 

[tom baker]

We are saying it’s not an NEC issue, we are not building code experts.
Firestopping is normally inspected by the building AHJ.