Fire alarm systems can be manually set off when there’s no fire emergency. … Cooking, aerosol spray, air fresheners, and dust in a smoke detector can trigger a fire alarm. It is also possible to break a sprinkler head or open a sprinkler valve to start the flow of water through the system.
What makes a building fire alarm go off?
These systems sound off because the escape route through the halls is starting to fill with smoke. … When the common area alarms sound off, everyone should stop what they’re doing and get out of the building. They should get out right away before the halls finish filling with smoke.
Which device activates the building fire alarm?
Primary manual initiation device is the manual fire alarm box or manual pull-station. Manual initiation devices Designed so that building occupants can activate the fire alarm system if they discover a fire in the building. Primary manual initiation device is the manual fire alarm box or manual pull-station.
What to do if building fire alarm goes off?
When the fire alarm sounds in your building:
- Immediately evacuate the building to the outside.
- NEVER go back to retrieve personal belongings.
- Move away from the front of the building to allow the fire fighters and their trucks to access the building.
What do you do when a fire alarm goes off in an apartment building?
If the fire alarm goes off in your apartment, treat it seriously. Evacuate the building. Do not use elevators to exit, always use the stairs. If the exit is blocked by flame or smoke, then you should return to your apartment and try to seal it against smoke.
What are the 4 main types of fire alarm systems?
Fire alarm system categories
- Category M – Manual fire alarm system.
- Category L1 – Maximum life protection automated fire alarm system.
- Category L2 – Additional life protection automated fire alarm system.
- Category L3 – Standard life protection automated fire alarm system.
What are the 4 types of automatic initiating devices?
Automatic Initiating devices
- Heat detectors.
- Smoke detectors.
- Duct detectors.
- Beam detectors.
- Tamper switches.
- Fire sprinkler water flow switches.
What are the two basic types of fire alarm systems?
The two main types of fire alarm systems are conventional and addressable. The various components that make up these systems are either automatic or manual.
Why do building occupants ignore fire alarms?
Research findings show that a fire alarm signal by itself is usually not sufficient to initiate occupant evacuation from buildings. The problem of recognizing the fire alarm for what it is, is fundamental to the fact that people fail to respond as expected to this signal.