When the fire alarm is activated, building occupants will hear a horn which will sound FOUR-FOUR-FOUR (4-4-4). The duration of this signal will be approximately fifteen (15) seconds.
How do fire alarms make sound?
Smoke detectors are intended to make a chirping noise once the battery needs changing. … This usually occurs in electrical powered smoke alarms with a battery backup. When this happens, the way to stop the chirping noise is to reset the smoke alarm to manually clear the error from the processor.
When you hear the fire alarm sound where do you go?
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.
Will a smoke alarm eventually stop chirping?
A smoke alarm will eventually stop chirping if you do nothing. Once the battery has run out completely, the device will switch to residual power. Eventually, this will also drain and the device won’t have enough power to beep and let you know it’s out of power. You should change the battery before this happens.
Why is my smoke alarm chirping if it’s hard wired?
Most hard-wired smoke detectors use a 9-volt battery that is supposed to kick in if your home loses electricity. When that battery is running low, your detector alerts you with a chirp that it’s running low. Replacing the battery solves the problem.
Should you have a fire alarm in every room?
It’s important to have enough smoke alarms in your home. … For many years NFPA 72, National Fire Alarm and Signaling Code, has required as a minimum that smoke alarms be installed inside every sleep room (even for existing homes) in addition to requiring them outside each sleeping area and on every level of the home.
What will you do when you hear the fire alarm?
If you hear a fire alarm:
- STOP WORK AND EVACUATE THE BUILDING.
- Follow the EXIT Signs. …
- Use stairs. …
- Keep fire doors in stairways closed. …
- Evacuate and proceed until you are outside of the building.
- Walk at a normal pace. …
- Wait outside until “All Clear” is announced by Security personnel.
What do you do after your fire alarm goes off?
Everyone must evacuate the building by way of the safest and closest exit and/or stairway. Never use an elevator to exit during a fire alarm activation. Once outside the building, move away from the building. Assemble across the street or along the sidewalk of the adjacent building.