Components of a Fire Alarm System

Is your office considering installing a sophisticated fire alarm system complete with fire alarm, heat sensor, fire extinguisher, and a state-of-the-art warning system for other emergencies? Knowing what makes up a complete emergency system can help narrow down your choice for a professional alarm service provider in Singapore.

Initiating Devices
The initiating devices in the system are also known as the fire detector which can be activated manually or automatically. Examples of the automatic initiating devices are the heat sensor and smoke sensor devices, which are based on several technologies such as aspiration, photoelectric, beam, duct, and ionization. Some of the most advanced devices can detect not only flame and smoke, but also water flow, carbon monoxide, and others which might be considered hazardous for the occupants. Camera detection is sometimes used in high-tech offices to allow for analysis through computer algorithms of the fire and movement. Manual initiating devices are the pull stations you can sometimes see in building corridors that are housed with an axe and a fire extinguisher for emergencies besides fire. Most of these are located near exits and other accessible areas.

Fire Alarm Panel
Also called the fire alarm control panel, this is the “brains” of the fire alarm system in Singapore that monitors overall system integrity, monitors all the inputs, and controls the outputs by relaying the proper information to the other parts of the system. It is made up of circuit writing and circuit cards, sometimes with a specific assigned card for different zones especially in large buildings. Users and fire protection companies in Singapore alike will be able to signal an alert, reset, reprogram, and disable the alarm through the panel.

Remote Display and Control Panel
For large building complexes, a more sophisticated monitoring system may be required. The panels and control allow for faster checking of the status, signaling alarms or disabling them, and the activation or deactivation of the fore alarm system components within the building.

Notification Devices
As the name implies, this component of the emergency system consists of devices that will notify the occupants in the area about an emergency. Notification may be done through an emergency alarm, flashing or strobe lights, speakers for instructing people on how to evacuate, and many more. Voice alarm systems sometimes use pre-recorded instructions or messages that are played during the evacuation.

Safety Interface
There are other devices which might help the occupants and responders stop the spread of fire by controlling aspects of the environment. This can be done through control of the lighting, exit or evacuation of the occupants, air movement to prevent the fire from getting bigger, and others. The devices range from simple evacuation diagrams to sophisticated duct smoke detector for the ventilation and air conditioning system and the magnetic smoke holders that will keep the doors closed or open to restrict passage or to allow passage of evacuees. Other high-rise buildings are required to have an emergency elevator service to prevent people from getting trapped during the evacuation.

Primary and Secondary Power Supply
For the emergency system to function even during a power outage, it is connected to a primary power supply and a power backup, such as a generator. The primary supply is connected to the 120 V or 240 V alternating current, while the backup power supply is provided by the batteries installed in the system’s panel or another enclosure near it.

Fire Protection
In cases where notification alone might not be enough to stop the fire, a sprinkler system is connected to the fire alarm as part of an active fire protection step. Commercial and industrial buildings are required to install the system. The sprinkler has a heat-sensitive glass and a pipe cap which can pop out once the temperature activates it. Types of sprinklers include the water spray, foam water, and water mist.