In the clean agent release control system, is the fire resistant cable mandatory to be used, or fire proof cable can be OK when in steel conduit?
In NFPA codes, what is the requirement on the cable and conduits in this kind of system?
As per in NFPA 2001 (2018) para 18.104.22.168, you need to refer to NFPA 70 and NFPA 72. In NFPA 72 (2019) Chapter 12, there are specific requirements on pathway survival levels and raceways etc.
It is too general of a quesiton to answer. There are many requirements to consider in NEC.
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