These Detectors Stop Sounding Rather Quickly. Fire Findings.
Abstract: Fire Findings conducted a test of smoke alarms to see
how long the alerting sound lasts. All of the detectors tested responded
quickly to the controlled fire, over five minutes before flames appeared.
The first detector fell to the ground twelve minutes after it first signaled.
The rest followed after fifteen minutes of ringing. All the smoke detectors
had stopped ringing before alerting for twenty minutes. For investigators,
this means that a fire alarm may have sounded even if the first responding
officers do not hear one. Since many units fell shortly after sounding,
they will probably be located towards the bottom of the debris. All of the
smoke detectors tested fell to the ground during this short controlled fire.
To investigators, this suggests that smoke alarms may have existed even
though they were not found installed at the fire scene.
For more information, contact:
Fire Findings L.L.C.
2026 Plaza Dr.
PO Box 8637
Benton Harbor, MI 49023
Voice: (269) 925-2200
Fax: (269) 925-2204