Fire pump room penetrations

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electricg

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Does emt conduit require internal fire seals when running circuits into the fire pump room through the fire wall? I understand about sealing around the outside of conduit for the penetration, but internally I have never seen people get called on.

This would mean we need a lb, or box or pull c to install the fire stop internally. I have checked the NEC but only found where it talks about fire pump circuits needing 2hr ratings.
 
I am assuming you mean a fire seal within the conduit? Do you mean just any conduit or the feeder to the fire pump controller? There are some fire rating issues for a fire pump feeder run through a building. Depending on what circuit you are talking about, the feeder assembly itself might have to be 2 hour rated. See NEC 695.6. Other than that the penetration through the wall has to sealed using a U.L rated assembly or method.
 
Any penetration through a fire rated wall has to have a seal around the conduit equal to rating of the wall. Doesn't matter whether it is fire pump room or not. I've seen a lot of EMT run through 1 and 2 hour walls so you don't have to have an internal seal for the conduit. Specify that the penetration must be U.L. Listed for the conduit or cable assembly in question. I Googled "UL Listed 2 hour rated conduit penetration" and found some details. We usually just specify fire rating in a general way in our specifications but don't list any particular fire rated assemblies.
 
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electricg,

**hbendillo** is correct about the requirements of having a U.L. listed
assembly for ANY type of penetration thru any type of fire rated wall
assembly or floor assembly......Do your project plans indicate any type
of U.L. assembly number to use when penetrating the 2 hr. rated fire
pump room [ i.e. - what U.L. assembly number to use ] ?........REASON:
Not all U.L. assembly numbers are the same for penetrations of 2 hr.
rated wall \ floor assemblies, ...similar yes, but not actually the same.

The Registered Design Professional of Record should have listed what
U.L. assembly number to use, or if they did not, that RDP should be
contacted and asked.......They should provide something specific to
that application & location, and they should do it in writing, along
with their design seal & signature affixed to it........It is a legal
document that assigns responsibility & liability to that project, and
should have been part of the project documents.......Either on the
actual plans, or in the Specifications Manual or both.

IMO, you should not be the one trying to ascertain what is required
when penetrating a 2 hr. rated assembly.

Also, your OP is a Building code question, and not an NEC question,
but thanks for asking.

Hope this helps ! :thumbsup:


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