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Main types of Fire Alarm System: Adressable Fire Alarm System

Main Types of Fire Alarms: Part 3

Main types of Fire Alarm System: Adressable Fire Alarm System

Posted 11-05-18

There are five main types of fire alarm system. Each will have its own application within the design process, and the correct identification for the most appropriate system is critical to ensuring buildings get the best possible active fire detection system installed. The five categories can be split up as conventional fire alarm systems, two-wire conventional systems, addressable systems, aspirating smoke detection systems and radio controlled fire systems. In the last blog of this series, we took a look at hybrid two-wire conventional systems – today we move onto addressable systems.

Addressable Fire Alarm System:

An addressable fire alarm system is a more advanced than conventional and hybrid two wire systems, where the fire alarm operates on a loop circuit rather than a radial circuit (all devices and cabling start and end at the control panel rather than ending at an End Of Line unit). This allows for major advantages such as the continued operation of the detection system in the event of a fault on a single device or loop.

The advantages also go beyond the cabling aspects. Addressable systems, as the name suggests, allows each device (whether it is a sounder or detection device) to have a unique address which is identifiable on the control panel. This allows for a much more accurate location of an alarm or fault as the responsible person can literally read off the devices that are signalling from the panel display screen – with further information available to them such as fault or fire.

The disadvantages in direct comparison to conventional and hybrid two wire systems remain rooted in economics. With the intelligence of the devices comes a more significant price for the purchase of the equipment – but for the coverage and protection provided, this is in most cases, worth the additional investment!

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