Can anyone shed some light on 2015 or 2018 IFC 907.2.9.3 regarding the requirement for interconnection of single/multi station smoke alarms to the fire alarm system? What is the interconnection purpose?
The handbook commentary indicates the intent is to notify occupants of a fire alarm system activation in the building. In the next sentence it indicates the intent is NOT to activate the fire alarm system.
A fire alarm system is already required in prior sections which NFPA 72 would mandate a minimum audible decibel level to be achieved at the pillow within the sleeping/dwelling units; i.e. this would typically mean low frequency fire alarm system notification appliance in each unit. So if the fire alarm system already has notification appliances in the unit and the single stations are not intended to activate the fire alarm system, it seems like there is no purpose of interconnection.
From some articles i have found, this interconnection topic seems to have been confusing since its adoption in 2012.
Any thoughts on why the interconnection is required ?
Thanks!
The handbook commentary indicates the intent is to notify occupants of a fire alarm system activation in the building. In the next sentence it indicates the intent is NOT to activate the fire alarm system.
A fire alarm system is already required in prior sections which NFPA 72 would mandate a minimum audible decibel level to be achieved at the pillow within the sleeping/dwelling units; i.e. this would typically mean low frequency fire alarm system notification appliance in each unit. So if the fire alarm system already has notification appliances in the unit and the single stations are not intended to activate the fire alarm system, it seems like there is no purpose of interconnection.
From some articles i have found, this interconnection topic seems to have been confusing since its adoption in 2012.
Any thoughts on why the interconnection is required ?
Thanks!