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#31052 11/07/03 12:37 PM
Joined: Oct 2003
Posts: 172
G
Member
Other than covering conduit in drywall is there any way or cables to give you two hour fire protection besides m.i.c.c.

#31053 11/07/03 01:03 PM
Joined: May 2001
Posts: 717
G
Member
Didn't even know conduit had a fire rating.
What is the application?

If it's for something like a fuel farm (pumping station) you probably could not do better than MI, all in all, it does not come out a lot more than Rigid if you're running a bunch of it.

Walls are fire rated, the individual components inside them are dependent upon them to provide the rating. Many applications you do want to insure a low smoke in case of fire.

#31054 11/07/03 01:13 PM
Joined: Aug 2001
Posts: 16
G
Member
If it's for Fire Pump or Emg. Cicuits VitaLink makes a 2 hr. mc cable. Check www.vitalinkcable.com

#31055 11/07/03 01:16 PM
Joined: Oct 2003
Posts: 172
G
Member
ITS FOR A COMMERCIAL FIRE ALARM INSTALLATION

#31056 11/07/03 04:22 PM
Joined: May 2002
Posts: 1,716
R
Member
I'm still confused. Why would a supervised Fire Alarm system need a two hour rating?

In the case of a fire, the system (hopefully) would have performed it's function in the vicinity of the fire, and any damage to the system wiring would be a moot point. [Linked Image]

Roger

#31057 11/07/03 04:27 PM
Joined: Oct 2003
Posts: 172
G
Member
its spec,d this way for the risers

#31058 11/07/03 08:40 PM
Joined: Mar 2002
Posts: 582
R
Ron Offline
Member
If you are looking for 2 hour rated fire alarm cable as described in 760.31(F), or http://www.ecmweb.com/ar/electric_ci_cable_2/ then check http://www.drakacomtequsa.com/lifeline/default.htm http://www.vitalinkcable.com/ http://www.tycothermal.com/northame...ts.asp?can=1013&pt=prod&pdid=796
Thanks for checking the spec, I've been specifying this cable for interconnection between the control panel and each notification zone for about a year now, and I have to struggle with the installer each time. [Linked Image]


Ron
#31059 11/07/03 09:42 PM
Joined: Aug 2003
Posts: 173
S
Member
That is the only place I have ever seen MI cable installed. Feeding a disconnect for a huge fire alarm panel in a shopping mall we used to service. It also fed the 480v., 100HP motor for the booster pump for the system.
Before that I never even knew what the stuff was.
Why not just use the MI?


Speedy Petey

"Anyone who has never made a mistake has never tried anything new." -Albert Einstein
#31060 11/10/03 08:05 AM
Joined: Oct 2003
Posts: 172
G
Member
The reason i don,t want to use m.i.is cost,if i can achieve the same result at less cost why not.

#31061 11/10/03 08:15 AM
Joined: Mar 2002
Posts: 582
R
Ron Offline
Member
You can't buy MI cable in a fire alarm rated configuration.


Ron
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