SMOKE
DETECTORS SAVE LIVES!
This information courtesy of the National
Fire Protection Association
Smoke detectors are not new. The technology has been
around since the 1960s. The single-station, battery-powered smoke detector,
similar to the one we know today, became available to consumers in the
1970s. NFPA estimates that 93% of
U.S.
homes have at least one smoke detector. They save so many lives that most
states have laws requiring them in residential dwellings.
Still a
Major Problem
Although 13 of every 14 homes have at least one smoke
detector, almost half of homes fires and three-fifths of all fire deaths
occur in those homes with no detectors. Thousands of people still die each
year in home fires where smoke detectors are not present.
In addition, there are now more homes with smoke
detectors that do not work than homes with no detectors at all. These
poorly maintained units create a false sense of security among occupants.
Approximately one-third of homes with smoke detectors that experience fires
have units that are not working. Tragically, the grave importance of
installing and maintaining smoke detectors has not yet been fully realized.
Most people who die in home fires are not in the room where the fire starts.
Working smoke detectors alert people to the presence of fire and give them
time to escape in a situation where minutes can mean the difference between
life and death.
Working
Smoke Detectors Save Lives
By properly installing, regularly testing and
maintaining your detectors, you can decrease your chance of dying by nearly
50%. Make sure that you buy only those detectors that bear the mark of an
independent testing laboratory. Some detectors operate using an "ionization"
sensor while others use a "photo-electric" sensor. An ionization detector
uses an extremely small quantity of radio-active material to make the air in
the detector chamber conduct electricity. Smoke from a fire interferes with
the electrical current and triggers the alarm. A photoelectric detector uses
a tiny light source shining on a light sensitive sensor. The alarm is
triggered when smoke from a fire interferes with the light. All tested and
labeled smoke detectors offer adequate protection if they are properly
installed and maintained.
Installation
of Detectors
The majority of fire deaths occur at night when people
are asleep. NFPA's National Fire Alarm Code (NFPA 72) says that homes should
have a working smoke detector on each level of the home, including the
basement, and outside of each sleeping area. On floors without bedrooms,
smoke detectors should be installed in or near living areas, such as family
rooms and living rooms. New homes are also required to have a smoke detector
in each sleeping area.
In new homes, the National Fire Alarm Code requires
hard-wired, interconnected detectors, so that if one detector is activated,
all detectors will sound the alarm signal. Detectors that are hard-wired
into the home electrical system should be installed by a qualified
electrician. If your detector plugs into a wall outlet, make sure it has a
restraining device to keep its plug from being pulled out. Never connect a
detector to a circuit that could be turned off at a wall switch.
Since smoke and deadly gases rise, detectors should be
placed on the ceiling at least 4-inches from the nearest wall, or high on a
wall at least 4 to 12 inches from the ceiling. This clearance is important
to keep detectors out of possible "dead-air" spaces. Do not install
detectors near windows, doors or a fireplace because drafts could detour
smoke away from the unit.
Recommended Maintenance
Test your detector once a month to insure operating
condition.
Follow the manufacturer's instructions for cleaning or
protecting from dust. Do not paint a unit
Minimize "nuisance" or false alarms by cleaning
regularly.
Evaluate your detector placement if false alarms
persist. Cooking vapors and steam can set off a detector. Try moving the
unit further away from the area.
Smoke
Detectors - A Wise Investment
Contrary
to popular belief, the smell of smoke may not wake a sleeping person.
Instead, the poisonous gases and smoke produced by a fire can numb the
senses and put one into a deeper sleep.
A battery-operated smoke detector retails for less than
$10. Some detectors with extra features can cost up to $25. Batteries cost
$1 to $2 depending on the brand. A hard-wired smoke detector cost $12 - $15.