These underscore the importance of avoiding fire outbreaks. When a fire gets to a high level even the best fire fighting equipment will be overwhelmed by it so the best protection is fire not starting at all or being nipped in the bud when it can still be controlled by regular fire extinguishers.
To provide early warning we install fire and smoke detectors that emit alarm sounds to warn of smoke or fire before it gets out of hand.
Heat detectors are the oldest type of automatic fire detection device. Heat detectors feature a detecting element inside the unit that activates when it reaches a predetermined fixed temperature or when a specific increase in temperature has occurred. Heat detectors are best suited for:
- applications where detection speed is not a prime consideration or where ambient conditions would not allow the use of a smoke detector
- fire detection in small, confined spaces where rapidly burning, high heat fires are anticipated
Heat detectors have a lower false alarm rate, but they are also slower than smoke detectors in detecting fires. Studies have shown that heat detectors are not as effective as smoke detectors in detecting fires in residential homes.
Smoke alarms will detect most fires more rapidly than heat detectors. There are currently three types of smoke alarms on the market: ionization, photoelectric and combination ionization/photoelectric.
1.Ionization smoke alarm contains a small amount of radioactive material. The radiation passes through an ionization chamber which is an air-filled space between two electrodes and permits a small, constant current between the electrodes. Any smoke that enters the chamber absorbs the alpha particles, which reduces the ionization and interrupts this current, setting off the alarm. This type of alarm responds best to fast raging fires.
2.Photoelectric smoke alarms operate using a light source, a light beam collimating system and a photoelectric sensor. When smoke enters the optical chamber and crosses the path of the light beam, some light is scattered by the smoke particles, directing it at the sensor and thus activating the alarm. This type of alarm responds best to slow smoldering fires.
3.Combination smoke alarms feature both ionization and photoelectric technologies. Ionization smoke alarms respond faster to high energy fires, whereas photoelectric detectors respond better to low energy smoldering fires.
For large facilties we provide Addressable fire alarm Panels with individual unique identifiers. When one of the system’s components initiates, it indicates the component’s address on the fire alarm panel so that the source of fire can be pinpointed. This saves a lot of time because it removes the need to search for the source of alarm.