Not required. However, shafts must have 2 hour fire resistance.
It depends if the shafts are open to areas requiring smoke detection per the building and life safety codes.
There is always more to add from the discovery of facts that change the parameters.
Can i get the reference in NFPA
Not knowing all the parameters for the design and/or construction.
Here is why I replied it depends:
The use of NFPA 101, Life Safety Code, is fairly straightforward. You will have to rule out the shafts are not required to have smoke detection. First, go to the occupancy chapter that envelop the building in question. The chapter will contain all requirements for the fire alarm system in sections entitled “Detection, Alarm, and Communications Systems.” Each section in each occupancy chapter will contain requirements that reference the requirements of Section 9.6. The requirements in Section 9.6 in turn reference NFPA 72, National Fire Alarm Code, for the remaining installation requirements.
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