Does the fan blades of small fans (60in or under) need to be accounted
for when applying NFPA 13 (10ed) section 8.12.5.2 or just the fan motor
and housing?

In the appendix they talk about high volume low speed fans with large
diameters (20ft) requiring both the fan blades and the motor unit to
satisfy 8.12.5.2.

Just out of curiosity, how would one go about placing sprinklers to
comply with something like this?  Just put additional sprinklers under
the outside edge of the fan blades?

Thanks,

Dewayne Martinez
Design Build Fire Protection
New Berlin, WI

 

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