Fire Alarm System, Fire Alarm Systems Manufacturer, Fire Alarm Systems Supplier, Mumbai, India
       
 
   
 

Fire Alarm System

Conventional Systems are used for small installation as it becomes cost effective and also serves the purpose of safety and location identification is easy. It is a well-proven technology protecting many hundreds of thousands of properties worldwide.

In a typical Conventional Fire Alarm System the 'intelligence' of the system resides solely within the Fire Alarm Control Panel, which receives a trigger signal from a Conventional Detector or Call Point and in turn, signals the condition to other devices such as alarm sounders and remote signalling equipment. The control panel operates from house power but also usually contains an emergency battery which can operate the system for about 24 hours during a power outage.

Basic System Functional Operation:

When a fire alarm condition i.e. Smoke is detected and reported by the system Initiating devices, the following functions shall immediately occur:

  • The System Alarm LED shall flash.

  • An electric signal in the control panel shall sound.

  • The LCD display shall indicate all information associated with the fire alarm condition, including the type of alarm point and its location within the protected premises.

  • The audio portion of the system shall sound the proper audio signal consisting of alarming tone.

Analogue Addressable Fire Alarm Systems differ from conventional systems in a number of ways and certainly add more flexibility, intelligence, speed of identification and scope of control. For this reason Analogue Addressable Fire Alarm Systems are the natural choice for larger premises and more complex system requirements.

These systems consist of a central control panel to which smoke alarms and heat detectors are connected, along with bells or horns that are activated when the system triggers an alarm. The control panel operates from house power but also usually contains an emergency battery which can operate the system for about 24 hours during a power outage. Addressable panels are usually much more advanced than their conventional counterparts, with a higher degree of programming flexibility and single point detection.

Panels usually have a number of signalling line circuit loops - usually referred to as loops. Depending on the protocol used, a loop can monitor and control several hundred devices.

Each device on a SLC has its own address, and so the panel knows the state of each individual device connected to it. Common addressable input (initiating) devices include: Detectors, MCP’s, Warning System/Bell Relays, Activating fire suppression systems, etc.

Basic System Functional Operation:

In an analogue addressable system detectors are wired in a loop around the building with each detector having its own unique 'address'. The system may contain one or more loops depending upon the size of the system and design requirements. The Fire Control Panel 'communicates' with each detector individually and receives a status report e.g. Healthy, In Alarm or In Fault etc. As each detector has an individual 'address' the fire alarm control panel is able to display/indicate the precise location of the device in question, which obviously helps speed the location of an incident.

Sounders may either be conventionally wired or by using addressable sounders, wired upon the "loop" thereby making considerable savings in terms of cable and labour.

   


 
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