Fire rated Vs fire retardant cables
- Thread starter TMMB
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- Illinois
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- retired electrician
Not really sure what you are asking. I believe that the "plenum" type cables are fire and smoke retardant while the cables used for emergency systems that must have a 2 hour fire rating are "rated".
Many thanks for your reply, but i did not ask for plenum, just i have HI-Fog water mist system (fire fighting system), i am asking about the required cable types must be used in that system, is it required to be fire rated or fire retardant, based on NEC
- Location
- Illinois
- Occupation
- retired electrician
That will not be in the NEC. It will be in the standard or code that covers the system you are asking about.
ron
Senior Member
- Location
- New York, 40.7514,-73.9925
I do not think NFPA 750 has any special cabling requirements.
It is a suppression method so hopefully it is released before fire rated cable is needed.
Usually special cables are needed for special loads (fire pump) or special environments (plenums)
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- Placerville, CA, USA
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- Retired PV System Designer
MasterTheNEC
CEO and President of Electrical Code Academy, Inc.
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- McKinney, Texas
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- CEO
Flame retardant cables are not rated to continue to operate in a fire, and in all probability will not maintain circuit integrity during a fire.
CI- cable.(circuit integrity cable)
When the need to maintain circuit integrity is essential, specifc fire rated (fire resistive) cable for
those critical circuits that need to work in order to assure life safety or a plant shut down are used.
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