Smoke detectors, fire extinguishers and fire sprinklers are
all forms of active fire protection (AFP). Active fire protection
is defined as a system that is installed to detect and/or suppress
structure fires. To ensure reliability such systems must be tested
regularly and replaced or repaired occasionally. AFP is most effective
when used in conjunction with fire safety education.
Fire resistant construction materials have been used in commercial
buildings for years and are becoming more common in private residences.
In some cases architects design structures to be less likely to
catch fire and safer in the event of a fire. In all cases fire
extinguishers are the cheapest, easiest way to provide fire protection.
They are most often used in emergency scenarios and are most effective
in controlling small fires.
Businesses that do not have another form of AFP, such as sprinklers,
are required by law to have fire extinguishers available. Sprinkler
systems are much more efficacious, especially in retarding large
fires, but they are difficult and expensive to install. Typically
sprinklers are designed to automatically go off when activated
by a certain amount of heat. Smoke detectors are also triggered
by heat and/or smoke.
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