Fire alarms are another important
security device that helps you to seek protection from fire accidents. Usually
fire alarm and fire detectors are sold as one package. Fire alarms help raise a
loud noise and alerts you as soon as smoke is deducted by the fire detector. In
most cases fire alarm systems act at the instigation of fire detectors and
The Purpose of Fire Alarms
A Fire alarm helps you to be
protected in case of fire breakouts. This device is usually made up of
electromechanical or other metals and it will help you to make things better.
They create a loud noise and you will be able to evacuate the building through
alternative and safe passages created already for this purpose. Fire alarms
have helped to save innumerable lives and properties.
of a Fire Alarm
Fire alarms are made of many
constituents. They can be categorized into three major units namely control
units, fire detectors and alarm signal devices.
The fire alarm system is controlled
by a fire alarm control panel. Like any other security devices this fire
control panel can be referred as the head or brain of the fire alarm signal
device. You must primarily use it to decide how your fire alarm or fire
detector should operate. Besides this there are two more important units. The
fire alarm signal that performs the main function and fire alarm pull station
which transmits signals to the fire alarms through pull boxes.
Fire detectors come in two types
namely smoke and heat detectors.
Smoke detectors can further be
divided into two categories namely ionization smoke detectors and photo
electronic ionization units. A smoke detector will be helpful to deduct fire
even before a fire breaks out. A smoke detector will therefore be able to help
you in taking preventive actions at an early stage. Photo electronic ionization
detectors can be used in houses while the other category can be used in
Heat detectors also come in two
types. They are known as fixed temperature and rate of rise. In the first type
the device will work if the room temperature reaches an optimal level of 140° F
or 195° F. The other device also works on standard temperature levels. However
they can very well sense sudden and upward fluctuations of temperature.
This device has a limitation when compared with smoke detectors because heat
detectors can only recognize high levels of temperature and it is difficult to
save property or people in most cases.
signal devices are of two categories namely audible and visual. The first one
Emits loud noise and alerts you to escape from the fire outbreak. The loud
noise may be in the form of bells or speakers or even sirens. Similarly visuals
catch your attention by emitting certain types of lights like strobe light. It
is also possible to intimate the fire service personnel through the sound.