ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
ShoutChat Box
Recent Posts
Where is Everyone?
by gfretwell - 11/27/20 06:18 PM
Happy Thanksgiving
by gfretwell - 11/26/20 08:52 PM
Insulated Tools: A Waste of Money?
by HotLine1 - 11/26/20 12:28 PM
Ground fault remover :-)
by NORCAL - 11/26/20 08:13 AM
Work Gloves?
by sabrown - 11/25/20 01:54 PM
New in the Gallery:
Facebook follies, bad wiring
FPE in Germany pt.2
Who's Online Now
0 registered members (), 14 guests, and 11 spiders.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate Thread
Page 1 of 2 1 2
M.I. CABLES #31052 11/07/03 12:37 PM
Joined: Oct 2003
Posts: 172
G
GETELECTRIC Offline OP
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.

Work Gear for Electricians and the Trades
Re: M.I. CABLES #31053 11/07/03 01:03 PM
Joined: May 2001
Posts: 717
G
George Corron Offline
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.

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

Re: M.I. CABLES #31055 11/07/03 01:16 PM
Joined: Oct 2003
Posts: 172
G
GETELECTRIC Offline OP
Member
ITS FOR A COMMERCIAL FIRE ALARM INSTALLATION

Re: M.I. CABLES #31056 11/07/03 04:22 PM
Joined: May 2002
Posts: 1,716
R
Roger Offline
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

Re: M.I. CABLES #31057 11/07/03 04:27 PM
Joined: Oct 2003
Posts: 172
G
GETELECTRIC Offline OP
Member
its spec,d this way for the risers

Re: M.I. CABLES #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
Re: M.I. CABLES #31059 11/07/03 09:42 PM
Joined: Aug 2003
Posts: 173
S
Speedy Petey Offline
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
Re: M.I. CABLES #31060 11/10/03 08:05 AM
Joined: Oct 2003
Posts: 172
G
GETELECTRIC Offline OP
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.

Re: M.I. CABLES #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
Page 1 of 2 1 2

Featured:

2020 National Electrical Code
2020 National Electrical
Code (NEC)

* * * * * * *

2020 Master Electrician Exam Preparation Combos
2020 NEC Electrician
Exam Prep Combos:
Master / Journeyman

 

Member Spotlight
SafetyWired
SafetyWired
Pa, USA
Posts: 44
Joined: July 2013
Show All Member Profiles 
Top Posters(30 Days)
Trumpy 9
Popular Topics(Views)
272,071 Are you busy
205,961 Re: Forum
194,010 Need opinion
Powered by UBB.threads™ PHP Forum Software 7.7.3