Penetration At 2-hour Separation

wheeler

we're building a 5b rated building, nursery school under offices. the nursery school has a 2-hour separation top / bottom and on all load bearing members. my electrician is telling me that its BX inside the 2-hour rated area. Does anyone know if these are BX home runs to the main panel or are we allowed to terminate at sub-panels just outside the 2-hour rated envelope and go with Romex from these sub-panels to the main? We're IBC.

Magnettica

BX to sub panels and romex back to the mains? What in God's green earth are you talking about?

Btw, what state is this in?

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wheeler

ct.

my electrician has me running bx inside the 2-hour envelope. i don't want to run it to the main if we don't have to, its a large building.

mdshunk

What would you rather use? I know you can't run romex in that construction type, anyplace.

Magnettica

I guess you're going to have install some conduit from the MDP to a sub panel and tie your armored cables in there.

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wheeler

check, thanks.