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    Fire alarm system plays an important part of the fire and life safety of building and its occupants. Fire alarm system main function is to detect a fire at a sufficiently early stage so that the people who are at risk can made safely either by escaping as fast as possible or extinguishing the fire that can also reduce or prevent the property damage. Therefore, a reliability and functionality of fire alarm system as a whole is very important. 

    The following are the different types of the Fire Alarm System:

    1. Conventional fire alarm system

    a. Conventional fire alarm system uses physical cabling to connect several detectors and call points. Conventional fire alarm system has no way to identify immediately the exact location of the fire, but can be arranged in “Zones” to easily identify the location of the cause of the alarm. Its devices are cheaper but will consume more cable wires compare to addressable, since each device will be connected to the control panel by its own cable wire. This system are mainly used specially in smaller property.
    conventional fire alarm system Wiring diagram 

    2. Addressable fire alarm system

    a. Addressable fire alarm system has the same detection principle, except that each detector can be given a set address that can help to identify the exact location of the detector that initiated the alarm, that can be seen in the fire alarm control panel. Addressable fire alarm system saves a lot of wire compare to conventional system, since the devices can share one cable wires up to the last device. Both ends of the wire is loop connected to the fire alarm control panel. This system are very suitable for large and high buildings, since they are able to pinpoint exactly which devices are triggering the alarm.
    addressable fire alarm system Wiring diagram

    3. Wireless fire alarm system

    a. Wireless fire alarm system, is hassle-free to install compare to conventional and addressable since it does not use any conduit and cable wires. However, even though you saved a lot of money in material and labor cost, the hardware and programming are higher than the wired systems. The devices are battery powered and can be placed anywhere and can be easily relocate if needed.
    wireless fire alarm system

    Fire Alarm System Components 

    The main component of fire alarm system are the following:
    1. Fire Alarm Control Panel
    Fire Alarm Control Panel is the brain or central hub of a fire alarm system. It displays the location and status of the alarm devices, and it gives precise location of the device that cause the alarm.
    fire alarm control panel
    2. Fire Alarm Initiating Devices
    Fire Alarm Initiating Devices are the devices that detects signs of fire and triggers the alarm. They are connected to the fire alarm system control panel. Initiating devices includes smoke detectors, heat detectors, flame detectors, manual pull station and fire sprinkler water flow switch.
    Fire Alarm Initiating Devices
    3. Fire Notification Devices
    Fire Notification Devices are the audible and visual devices in fire alarm system, it includes fire alarm horn, speaker and bell. Its main function is to alert people at risk in the event of a fire, that is why it is considered as the most important components of fire alarm system.
    Fire Notification Devices
    4. Primary Power Supply
    Primary power supply is typically supplied by the local utility, and also from generators that are located in remote areas wherein the electrical grid is not available. 
    5. Backup Power Supply
    Backup power supply commonly supplied by batteries and stored internally or adjacent to main fire alarm control panel or can be also from generator. It must also provide a 24 hours of power supply to control panel in case of power shortage.

    How Fire Alarm System Works? 

    In an event of a fire emergency, the fire alarm system main role is to detect fire and to alert people at risk inside the building and emergency response team to control the situation as fast as possible. Fire alarm system key functions is to detect (by the use of smoke detectors, heat detectors, flame detectors, etc.) , alert (by the use alarm horn, speaker, and bell), and monitor (control panel). 

    Fire Alarm System Maintenance 

    A functioning and well-maintained fire alarm devices can help reduce injuries, save lives and properties. The fire safety systems inspection, routine maintenance, and testing will help one in keeping in compliance with the local/state fire inspectors and also their insurance carrier. To keep the best condition of the fire alarm devices, it is advisable to keep a scheduled maintenance and check the following: 
    1. Checking of physical appearance of the fire alarm devices
    2. Smoke Detectors should be cleaned & tested for sensitivity levels (addressable type)
    3. Fire alarm control panel should be tested for all alarm, trouble, supervisory, reset & silence function
    4. Checking of the devices power supply
    5. Checking/ replacement of batteries
    6. Checking/ removal of any obstruction on the devices that may cause false alarm or malfunctioning
    7. Checking if the alarm is audible
    8. Devices must be replaced when exceeded 10 years from the manufactured date


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Conventional Fire Alarm Contro...
Home > Products > Conventional Fire Alarm Control System LPCB Approved
Conventional Fire Alarm System
Conventional fire alarm system is the most common fire alarm system in commercial building. This article will talk about the features of conventional fire alarm system and its main composing devices: ...
  • What is a Conventional Fire Alarm System?

    The conventional fire alarm system is the most common fire alarm system in commercial buildings. Although nowadays, with technology developing, there are other fire alarm systems like addressable fire alarm system, wireless fire alarm system, etc. for people to choose from, in many cases, the conventional fire alarm system is still the ideal choice for most small places like small enterprises, small schools, specialty stores, restaurants, and apartments.
    Conventional fire alarm system protects buildings’ safety by dividing them into different zones and keeping an eye on them one by one. It works with a series of detecting devices and alarm devices, giving warning alarm to alert the nearby residents or rescuers.

    Advantages of Conventional Fire Alarm System

    One of the advantages of conventional fire alarm system is that they are rather economical. Though it is not expensive, the conventional fire control panel is still a great option for protecting small buildings.
    Conventional fire alarm system is simple to install. You don’t need to make a big change to the system existing, the conventional fire alarm system itself can be compatible with other manufacturers’ equipment. Also, it doesn’t have complicated wiring, just follow the wiring instruction, people that are not professionals can also finish the wiring quickly.

    Disadvantages of Conventional Fire Alarm System

    The main disadvantage of the conventional fire alarm system is that it is not addressable. When there is a fire alarm, the system can only locate the position roughly. If you want to know the exact position of the fire, you will need to check every detector in the area. However, the more advanced addressable fire alarm system solves this problem perfectly.
    Another disadvantage is that the conventional fire alarm system can’t seem to record the details of the past events. Most conventional fire alarm systems don't have the function of notifying alarms/faults/monitoring events.

    What Devices Does a Conventional Fire Alarm System Consist of?

    1.  Conventional Fire alarm system control panel

    The fire alarm control panel is used in the fire alarm system to receive, show and transmit fire alarm signals, and can send control signals to other control indicating equipment.
    conventional Fire alarm system control panel

    2. Conventional fire alarm system fire detector

    Fire detector is a device that checks and detects fire in the conventional fire alarm system. The fire detector is the "sensory organ" of the system, its function is to monitor whether there is a fire nearby. Once there is a fire, the detector will convert the physical characteristics of fire, such as heat, smoke, gas and radiant light, into electrical signals, and immediately send them to the fire alarm control panel.
    According to the ways to collect fire on the site, the fire detectors can be divided into:

    2.1 Smoke detector

    Smoke detector is a fire detector that uses a small smoke sensor to respond to the smoke aerosols (solid or liquid particles) flowing in the surrounding air resulting from combustion or pyrolysis. According to its working principles, the smoke detector can be divided into ionic type and photoelectric type.
    Conventional Fire Alarm System smoke detector

    2.2 Heat detector

    Heat detector can be divided into fixed temperature detector, rate-of-rise detector, and rate-of-rise and fixed temperature detector.
    When a fire occurs, the burning of substances could generate a large amount of heat, increasing the surrounding temperature. A heat detector is a fire detector that responds to changes in the temperature around a certain point or a certain loop in the detecting area. It converts heat changes into electrical signals for alarm.
    Conventional Fire Alarm System heat detector

    2.3 Flame detector

    Flame detector mainly includes ultraviolet flame detector, infrared fire detector, and UV&IR combined detector. It is mainly used to respond to the light feature of the fire.
    Flame detector is suitable for places where open flames are likely to be generated when a fire occurs, like tank areas, warehouses, and other chemical manufacturing production and storage places.
    Conventional Fire Alarm System flame detector

    2.4 Gas detector

    Gas detector is a detector that detects gas concentrations. This device is suitable for dangerous places with flammable or toxic gases, and can continuously detect the content of the gas in the air within the lower explosion limit for a long time. Gas detector mainly includes toxic or harmful gas detector and combustible gas detector.
    Gas detector can be widely adopted in gas, petrochemical, metallurgical iron and steel, electric power and other industries that might have flammable or toxic gases.
    Conventional Fire Alarm System gas detector

    2.5 Combined detector

    The combined detector is a detector that combines various detection principles into one, and it includes smoke and heat combined detector and smoke and gas combined detector.

    3. Conventional fire alarm system manual call point

    The manual call point usually is installed in public places. When people at the site confirm there is a fire, they will activate the manual call point, and it will send a signal to the fire alarm control panel. After the fire alarm control panel receives the alarm signal, it will send out an alarm sound to warn people in the area.
    Conventional Fire Alarm System Manual call point

    4. Sound and flashing fire alarm

    The sound and flashing fire alarm is used for the sound alarm and flash alarm when there is a fire, especially in a place where the visibility is vague or there is a lot of smoke when a fire occurs.
    4.1 Fire alarm bell
    The fire alarm bell is usually used in dorms and production workshops. Normally, people should install one in each detecting area. They can also use the burglar alarm, for the alarming sound effect is good.
    Conventional Fire Alarm System fire alarm bell
    4.2 Fire alarm indicator
    When the fire detector in the room alarms, the indicator on the fire alarm will automatically flash according to the device type set by the alarm, or it can be activated through the linkage of the fire alarm control panel, so that the staff can know that the fire detector in the room is activated without entering the room.
    Conventional Fire Alarm System fire alarm indicator
    4.3 Strobe sounder
    The strobe sounder is a device with both a sounder and a flashing indicator. It can be activated by the fire alarm control panel in the conventional fire alarm system, or it can be activated directly through people. After the strobe sounder is activated, it will give strong sound and flashing signals to remind people on the site to escape.
    Conventional Fire Alarm System strobe sounder

    5. Conventional fire alarm system power supply

    The power supply in the conventional fire alarm system generally adopts batteries, and the backup power supply of the conventional fire alarm system can make sure that the system can still work normally if the AC power supply goes wrong.
    Conventional Fire Alarm System power supply

    How To Wire A Complete Conventional Fire Alarm System