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Firealarmacademy

Firealarmacademy

Comprehensive Overview on the Working of Fire Alarm Systems

Many people have experienced fire alarm systems whether in school during an evacuation drill or any accidental alarm. However, most people do not know how this system works.The fire alarm systems basics have the following purposes:

 

  • Fire detection
  • Alert occupants
  • Activate safety control measures
  • Alert the fire department

 

Some functions need complicated engineering and design to achieve, however, in all these cases, they serve one of these four important functions. These functions of fire alarm systems are achieved through many inputs and outputs. The input system comprises the fire system monitoring system and fire detection devices activating the control panel. The output system notifies occupants and control functions linked with fire safety.

 

Fire Detection

 

Fire detection is accomplished by installation of heat and smoke detectors, automatic sprinkler water flow switches and manual pull stations. One important fire detection device is a water flow switch, which detects water movement in a sprinkler piping.

 

Occupant notification

 

When you have to warn building occupants, you require audible as well as visible alarms. Visual notification alarm systems or appliances provide notification to building occupants, who are hearing impaired. Audible alarms include speakers, which play pre-recorded messages or horns, which produce loud and annoying sound. Every building type kind needs a different kind of notification system.

 

Control functions

 

There are different kinds of control functions, which are performed by a fire alarm system. When the mounted smoke detector is activated it shuts down the HVAC or heating ventilation and air conditioning equipment to prevent smoke migration to the unaffected building areas. Smoke detectors in the lift lobby recall the cars automatically to the floor.

 

Notification to Fire Department

 

The fire alarm signals should be transmitted automatically to the local fire department or to any central station monitoring that notifies the fire department regarding the emergency. It gives a signal to the fire department and enables them to extinguish the fire immediately before it becomes big.

 

It is vital to make sure that fire-fighting equipment is installed in a building. This is done by carrying out periodic servicing and repairs. A record of repairing work carried out on systems shall show compliance with the law. You can now about different aspects of fire alarms, how to install them in proper places, and how do they work sitting right at home just accessing an e-book dedicated to this purpose.