ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals

Page 1 of 2 1 2 >
Topic Options
Rate This Topic
#31052 - 11/07/03 09:37 AM M.I. CABLES
GETELECTRIC Offline
Member
Registered: 10/22/03
Posts: 172
Loc: toronto canada
Other than covering conduit in drywall is there any way or cables to give you two hour fire protection besides m.i.c.c.
Top
Work Gear for Electricians and the Trades
#31053 - 11/07/03 10:03 AM Re: M.I. CABLES
George Corron Offline
Member
Registered: 05/16/01
Posts: 717
Loc: Lorton, Va USA
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.
Top
#31054 - 11/07/03 10:13 AM Re: M.I. CABLES
Geno Offline
Member
Registered: 08/27/01
Posts: 16
Loc: Syracuse, NY USA
If it's for Fire Pump or Emg. Cicuits VitaLink makes a 2 hr. mc cable. Check www.vitalinkcable.com
Top
#31055 - 11/07/03 10:16 AM Re: M.I. CABLES
GETELECTRIC Offline
Member
Registered: 10/22/03
Posts: 172
Loc: toronto canada
ITS FOR A COMMERCIAL FIRE ALARM INSTALLATION
Top
#31056 - 11/07/03 01:22 PM Re: M.I. CABLES
Roger Offline
Member
Registered: 05/18/02
Posts: 1716
Loc: N.C.
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.

Roger
Top
#31057 - 11/07/03 01:27 PM Re: M.I. CABLES
GETELECTRIC Offline
Member
Registered: 10/22/03
Posts: 172
Loc: toronto canada
its spec,d this way for the risers
Top
#31058 - 11/07/03 05:40 PM Re: M.I. CABLES
Ron Offline
Member
Registered: 03/13/02
Posts: 582
Loc: White Plains, NY
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/northamerica/...od&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.
_________________________
Ron
Top
#31059 - 11/07/03 06:42 PM Re: M.I. CABLES
Speedy Petey Offline
Member
Registered: 08/29/03
Posts: 173
Loc: Upstate, NY
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
Top
#31060 - 11/10/03 05:05 AM Re: M.I. CABLES
GETELECTRIC Offline
Member
Registered: 10/22/03
Posts: 172
Loc: toronto canada
The reason i don,t want to use m.i.is cost,if i can achieve the same result at less cost why not.
Top
#31061 - 11/10/03 05:15 AM Re: M.I. CABLES
Ron Offline
Member
Registered: 03/13/02
Posts: 582
Loc: White Plains, NY
You can't buy MI cable in a fire alarm rated configuration.
_________________________
Ron
Top
Page 1 of 2 1 2 >

Member Spotlight
Member Since: 08/22/05
Posts: 44
New in the Gallery:
SE cable question
Featured:

2017 NEC and Related
2017 NEC
Now Available!

Shout Box


Who's Online
0 registered (), 56 Guests and 8 Spiders online.
Key: Admin, Global Mod, Mod
 
New in the Gallery:
SE cable question
 
Top Posters (30 Days)
Admin 47
HotLine1 43
gfretwell 19
Ruben Rocha 12
Trumpy 9
 
Newest Members
Stack, Scotto, Freecrowder, clee512, Jdscott2005

ECN Electrical Forums - sponsored by Electrical Contractor Network - Electrical and Code Related Discussion for Electrical Contractors, Electricians, Inspectors, Instructors, Engineers and other related Professionals