How long must a fire alarm sound?

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 long should you keep a smoke alarm?

A. The life expectancy of smoke alarms is generally 10 years, after which point their sensors can begin to lose sensitivity. The test button only confirms that the battery, electronics, and alert system are working; it doesn’t mean that the smoke sensor is working.

How far away can you hear a smoke detector?

Depending on the piezoelectric horn design, the maximum sound pressure level can vary but is typically rated at a minimum of 85 dBA at 10 feet away as specified in the Underwriters Laboratories’ voluntary standard for smoke alarms, UL 217 Single and Multiple Station Smoke Alarms.

When a fire alarm sounds what should you do?

This is an emergency situation, so as soon as you hear a fire alarm, get yourself out of your seat and exit the building via the fire exits as quickly as possible. Fire spreads fast, and you don’t always know how long you’ve got before your means of escape are blocked.

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Where should you go if you hear the fire alarm going off?

Fire Alarm Response

  1. Immediately evacuate the building to the outside.
  2. NEVER go back to retrieve personal belongings.
  3. Move away from the front of the building to allow the fire fighters and their trucks to access the building.

How do you get a smoke alarm to stop chirping?

Resetting the Alarm

  1. Turn off the power to the smoke alarm at the circuit breaker.
  2. Remove the smoke alarm from the mounting bracket and disconnect the power.
  3. Remove the battery.
  4. Press and hold the test button for at least 15 seconds. …
  5. Reconnect the power and reinstall the battery.

Why is my smoke detector chirping?

Consistent Chirping

If a smoke alarm is chirping consistently, one of the following may be the reason: The battery may need to be replaced. An alarm will chirp every 30 to 60 seconds for a minimum of seven days. With a “low battery” announcement, disconnect the unit and replace the batteries.

How long should a 9 volt battery last in a smoke detector?

If your smoke alarms are powered by a nine-volt battery, the battery should be replaced every 6 months, while the detector itself should be replaced once every 10 years.

Should you put smoke alarms in bedrooms?

Install smoke alarms inside each bedroom, outside each sleeping area and on every level of the home, including the basement. … Smoke alarms should be installed at least 10 feet (3 meters) from a cooking appliance to minimize false alarms when cooking.

How far does a smoke detector have to be from a bedroom door?

The locations for ceiling-mounted smoke detectors installed on a smooth ceiling for a single or double doorway must match the centerline of the doorway no more than five feet from the door and no closer than 12 inches to the doorway.

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Where is the best place to put a smoke detector in a bedroom?

Install smoke alarms in every bedroom, in the hallways leading to the bedrooms, and on each level of your home, including the basement. Smoke alarms should be mounted on the ceiling 4” from the wall; wall mounts should be 4-12”from the ceiling.

Fire safety