Fire retardant vs. fire resistant cables

[Power0020]

I understand that flame retardant cables don't have capability to continue in operation during a fire, while fire resistant cables can operate during fires for certain time.

most of power plants require LV & MV cables to be flame retardant where I may think that flame resistance cables may be required for vital circuits. I couldn't find any recommendation in NEC.

Any clue?

 

[Mbrooke]

Mineral insulated cables would be your answer, at least from what you are trying to achieve.

http://www.pentairthermal.com/products/fire-rated-and-specialty-wiring-cables/mineral-insulated/

This is of course if you are anticipating a high temperature environment such a near by fire during an emergency.

 

[7anoter4]

NEC Art. 700.10 Wiring, Emergency System. (D) Fire Protection.
Feeder-Circuit Wiring.
Feeder-circuit wiring shall meet one of the following conditions:
(2) Be a listed electrical circuit protective system with a minimum 2-hour fire rating.
ARTICLE 728: Fire Resistive Cable Systems
An information note recommends UL 2196-2006, Standard for Tests of Fire Resistive Cables.
See also-for instance-:

http://iaeimagazine.org/magazine/2014/05/04/fire-resistive-cable-update-2/

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