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Portable Fire Extinguishers Extinguishers Have Limits
Used
properly, a portable fire extinguisher can save lives and property by putting out a small
fire or containing it until the fire department arrives.
Portable extinguishers for home use, however, are not designed to fight large or spreading
fires. Even against small fires, they are useful only under certain conditions.
* The
operator must know how to use the extinguisher. There is no time to read directions
during an emergency.
* The
extinguisher must be within easy reach and in working order, fully charged.
* The
operator must have a clear escape route that will not be blocked by fire.
* The
extinguisher must match the type of fire being fought. Extinguishers that contain
water are unsuitable for use on grease or electrical fires.
* The
extinguisher must be large enough to put out the fire. Many portable extinguishers
discharge completely in as few as 8 to 10 seconds.
Choosing Your Extinguisher
Fire
extinguishers are tested by independent laboratories and labeled for the type and size of
fire they can extinguish. Use these labels as a guide to purchase the kind of
extinguisher that suits your needs.
Classes of Fires
There
are three basic classes of fires. All fire extinguishers are labeled using standard
symbols for the classes of fires they can put out. A red slash through any of the
symbols tells you the extinguisher cannot be used on that class of fire. A missing
symbol tells you only that the extinguisher has not been tested for a given class of fire.
Class A: Ordinary
combustibles such as
wood, cloth, and paper. |
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Class B: Flammable
liquids such as gasoline,
oil, and oil-based paint. |
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Class C: Energized
electrical equipment -
including wiring, fuse
boxes, circuit breakers,
and appliances. |
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The extinguisher must be appropriate for the type of fire being fought. If you use
the wrong type of extinguisher, you can endanger yourself and make the fire worse.
Multipurpose fire extinguishers marked ABC may be used on all three classes of fire.
Remember, in some cases it may be dangerous to use any type of extinguisher. For
instance, pressurized extinguishing agent could spread a grease pan fire rather than put
it out.
Extinguisher Sizes
Portable extinguishers are also rated for the size of fire they can handle. This
rating will appear on the label, for example, 2A:10B:C. The larger the numbers, the
larger the fire that the extinguisher can put out, but higher-rated models are often
heavier. Make sure you can hold and operate an extinguisher before you buy it.
Installation &
Maintenance
Extinguishers should be installed in plain view, above the reach of children, near an
escape route, and away from stoves and heating appliances.
Extinguishers require routine care. Read your operator's manual to learn how to
inspect your extinguisher. Follow manufacturer's instructions on maintenance.
Rechargeable models must be serviced after every use. (Service companies are listed
in the Yellow Pages under "Fire Extinguishers".) Disposable fire
extinguishers can be used only once and must be replaced after use.
Remember The
"PASS"-word
Keep
your back to an unobstructed exit and stand six (6) to eight (8) feet away from the
fire. Follow the four-step PASS procedure.
* Pull
the pin: This unlocks the operating lever and allows you to discharge the
extinguisher. Some extinguishers may have other level-release mechanisms.
* Aim
low: Point the extinguisher nozzle (or hose) at the base of the fire.
* Squeeze
the lever about the handle: This discharges the extinguishing agent.
Releasing the lever will stop the discharge. (Some extinguishers have a button
instead of a lever.)
* Sweep
from side to side: Moving carefully toward the fire, keep the extinguisher aimed at
the base of the fire and sweep back and forth until the flames appear to be out.
Watch the fire area. If the fire re-ignites, repeat the process.
Always
be sure the fire department inspects the fire site, even if you think you've extinguished
the fire.
Should You Fight The Fire?
Before
you begin to fight a fire:
* Make sure everyone has left, or is leaving, the building.
* Make sure the fire department has been called.
* Make sure the fire is confined to a small area and is not
spreading.
* Be sure you have an unobstructed escape route to which the fire
will not spread.
* Be sure you have read the instructions and that you know how to
use the extinguisher.
It is
reckless to fight a fire in any other circumstances. Instead, leave immediately and
close off the area. Always remember, Your life can not be replaced, but
personal belongings can.
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