Fire Pump Conductors

[texie]

I have a situation where the EC ran a feeder to a fire pump in EMT with THHN through the protected building about 200 feet. What is the fix? I'm questioning fixing it with RHH and RGS because of this: http://forums.mikeholt.com/showthread.php?t=147842&highlight=fire+pump+conductor
I know Infinity made a post in that thread and was wondering how that turned out. Guidance needed.

 

[infinity]

We've begun to replace the EMT with RMC. To achieve the 2 hour fire rating the engineers have to chosen to surround the RMC with a 2 hour fire rated enclosure.

 

[texie]

We've begun to replace the EMT with RMC. To achieve the 2 hour fire rating the engineers have to chosen to surround the RMC with a 2 hour fire rated enclosure.

Are you using THHN? The UL document is not real clear to me that it applies to RHH conductors, as it seems to refer to cable assemblies.

 

[infinity]

When the conduit run is complete I believe that the redesigned feeders will utilize SimPull THHN.

 

[mike7330]

I used this wire for a fire pump, It has a 2 hour fire rating. You do need to support conduit every 5 feet.

http://www.datatechtx.com/pdf/lifeline/lifelinebrochure.pdf

 

[infinity]

I used this wire for a fire pump, It has a 2 hour fire rating. You do need to support conduit every 5 feet.

http://www.datatechtx.com/pdf/lifeline/lifelinebrochure.pdf

That looks like one of the types that is no longer permitted since it lost it's listing.

 

[texie]

That looks like one of the types that is no longer permitted since it lost it's listing.

Agreed. And I know am clear on the fact that it also applies to RHH installed in EMT or RGS, as that is known as FHIT, which is field constructed "Electrical Circuit Protective Systems".

 

[mike7330]

http://www.drakausa.com/documents/library/LifelineProductNotice_2012.pdf

Do you know why they lost their listing? and will the cable I installed really work?

Sorry found the answer
http://www.ul.com/global/eng/pages/...t-changes-to-certification_20120912090000.xml