• What Is Commercial Fire Alarm?

    What is Commercial fire alarm?

    It is the fire alarm system that is used in industrial or commercial use (like fire alarm systems installed in factories)

    It is different than the residential or office fire alarm system but it also has some similarities.

    The similarities between commercial and residential fire alarm system is that both of residential and commercial fire alarm systems could be:

    • Conventional and Addressable fire alarm systems
    • Cabled or network or wireless fire alarm systems

    The main difference is that commercial fire alarm parts should has more protection than residential fire alarm system (protection against dust and water).



    Fire alarm parts like :

    • Central station fire alarm control panel
    • Smoke alarm system or heat alarm detectors
    • Notification appliance devices

    What is meant by protection is that the fire alarm system can withstand harsh environmental conditions like water and dust.

    So, all outdoor commercial fire alarm system parts should have high IP protection.

    What is IP code?

    IP code is abbreviation of International Protection marking or Ingress Protection.

    This code consists of two numbers which determine or indicate how much the equipment could withstand harsh environmental conditions specially in industrial or commercial fields applications (dust and water).

    If we said that we have fire alarm panel with box enclosure of IP 44 what does it mean?

    It simply means that the fire alarm panel could be used in an environmental condition that it could withstand solid objects with greater than 1 mm in diameter “ex: wires” & it could resist splashed water from all directions.

    Always the first IP number is for solid objects protection & the second IP number is for liquid media protection.

    Here is the summery for the IP code:

     

    So when you install a commercial or industrial fire alarm system and you are going to install some of fire alarm system parts in outdoor area according to your application you should guarantee that these outdoor fire alarm parts are IP coded to the exact environmental conditions of the application.

    One more thing is that sometimes some fire alarm manufacturers cannot guarantee some IP protection codes for some fire alarm parts,

    Don’t be upset !!!

    You can use these low IP protection code and put them inside an IP protected enclosure as the IP code according to your application environmental conditions.

    (ex: putting the main fire alarm control panel IP44 inside special glass panel that is IP65)

    Similar concept is used if you attached to the fire alarm system a wireless security cameras CCTV for ”  home wireless security system”.

    The cameras must be minimum IP 65 to survive against weather specially if you are living in areas of hurricanes and continuous rain.



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    Are you going to work in a fire alarm systems installation company and you have limited or have no experience?
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    How to install a fire alarm system
    How to test and maintain a fire alarm system

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  • Conventional and Addressable Fire Alarm System Training Course

    At the beginning of any detect fire and security project any fire alarm system designer should choose and decide which system he should implement.

    There are two worldwide known fire alarm systems to choose:

    1- Conventional fire alarm system

    2- Addressable fire alarm system

    This is the most important and crucial step in fire alarm system design that is which system to chose between Conventional and addressable fire alarm systems

    Let’s talk about the advantages & disadvantages of both systems and what is the key choice for both systems:

    1. Fire alarm system diagram:

    Fire alarm system circuit is different for both systems.

    In conventional fire alarm each zone (a lot of smoke detectors and manual call points) is connected to one contact in the main fire alarm control panel (two wires contact), so any detector sense a fire it gives the fire alarm control panel an indication of fire case in the whole zone.



    The fire alarm control panel is a limited zone panel.

    It could be 2 zones, 4 zones, 8 zones, 16 zones and 32 zones.

    When I say the whole zone I mean that all detectors are seen as a one detector by the fire alarm control panel.

    No individual addressing for each detector.

    So the Conventional fire alarm system is applicable for small applications that has a few zones

    But in addressable fire alarm system one can give an address to each individual fire alarm detector

    The Fire alarm system diagram of conventional fire alarm system is as follows:





    The Fire alarm system diagram of Addressable fire alarm system is as follows:

      

    So the connection is a loop connection

    Every point is connected to the fire alarm control panel through the loop connection which can be up to 250 point or detector

    So the Addressable fire alarm system is applicable for large applications that has a lot of zones and need more details

    Another thing you have to consider if you are designing commercial fire alarm system or residential fire alarm system?

    Because an important factor is the fire alarm system cost

    The commercial fire alarm system cost is very expensive compared to the conventional fire alarm system cost when applied to same application.

    I will give you n example to let you understand how to choose the suitable fire alarm system for you application.

    • Suppose you have an house of two floors and each floor has two rooms:

    Total four rooms; what fire alarm system would you implement?

    Of course a conventional fire alarm system because it is just 4 zones and you need a cheap system.

    • Suppose you are in charge of control room that monitors all the apartments and buildings in a large residential compound that has more than 200 point to monitor; what fire alarm system would you implement?




    Of course an addressable fire alarm system because it is more than 200 points and it is a large application fire alarm system.

    If you are searching for a fire alarm training course and need more information about fire alarm system design types, here is your guide:
    How to design a fire alarm system
    How to install a fire alarm system
    How to test and maintain a fire alarm system

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