[F] 907.5.2.3 Visible Alarms
- Visible alarm notification appliances are not required in alterations, except where an existing fire alarm system is upgraded or replaced, or a new fire alarm system is installed.
- Visible alarm notification appliances shall not be required in exits as defined in Chapter 2.
- Visible alarm notification appliances shall not be required in elevator cars.
- Visual alarm notification appliances are not required in critical care areas of Group I-2, Condition 2 occupancies that are in compliance with Section 907.2.6, Exception 2.
Exception: Where employee work areas have audible alarm coverage, the notification appliance circuits serving the employee work areas shall be initially designed with not less than 20-percent spare capacity to account for the potential of adding visible notification appliances in the future to accommodate hearing-impaired employee(s).
WITH VISIBLE ALARMS
|6 to 25||2|
|26 to 50||4|
|51 to 75||7|
|76 to 100||9|
|101 to 150||12|
|151 to 200||14|
|201 to 300||17|
|301 to 400||20|
|401 to 500||22|
|501 to 1,000||5% of total|
|1,001 and over||50 plus 3 for each 100 over 1,000|
In Group R-2 occupancies required by Section 907 to have a fire alarm system, each story that contains dwelling units and sleeping units shall be provided with the capability to support visible alarm notification appliances in accordance with Chapter 10 of ICC A117.1. Such capability shall accommodate wired or wireless equipment. The future capability shall include one of the following: