plenum wiring in conduit

[shaw0486]

If wiring is installed in emt in a plenum rated ceiling does it have to plenum rated? If yes what code article is it. I think i have read this in a FPN in the NEC but can not find it.

Thanks,

 

[augie47]

I believe what you are looking for is in 300.22(C)(1)

 

[raider1]

Also what type of wiring are you talking about?

There is an interesting requirement in 800.154(A) for communications cables installed in raceways in a plenum.

Chris

 

[shaw0486]

It is for a fire alarm system

 

[shaw0486]

ok so if i am reading this correctly i can run non plenum rated cable in a plenum ceiling if it is ran in a metallic raceway

 

[raider1]

For fire alarm systems take a look at 760.154(A) for power limited fire alarm systems.

Chris

 

[augie47]

For fire alarm systems take a look at 760.154(A) for power limited fire alarm systems.

Chris

Chris, I'm a bit out of my league here, but it appears that refers back to 300.22 which would allow non-plenum rated conductors as long as they were in conduit. Am I reading that correctly ?

 

[raider1]

Chris, I'm a bit out of my league here, but it appears that refers back to 300.22 which would allow non-plenum rated conductors as long as they were in conduit. Am I reading that correctly ?

Yes, if you comply with 300.22 then you can install metal conduit and pull non-plenum rated cables.

Chris