Fire alarm system designs, what you should know.
When deciding on what fire alarm system to install in your building it shouldn’t just be a case of the ‘cheaper the better’ or ‘ it’s enough to cover any legal regulations’ – you should be considering the safety of your staff and building and you should choose a system that reduces any false fire alarms.
Fire detection systems in specific buildings will usually be determined by the authority responsible for the fire safety legislation or by a fire risk assessment that is carried out by the owner, occupier, landlord or employer(s)
An appropriate fire detection system or alarm should be installed in most buildings – the only premises that could potentially be void from the installation of a fire alarm system would be a very small open plan office. When considering the type of fire alarm system to design it is important to consider all systems available as one particular type might not suit all buildings.
There are three main fire alarm systems that can be considered for your premises:
Addressable Fire Alarm Systems
Addressable Systems work in a similar way to conventional systems but the control panel can determine exactly which detector or call point has initiated the alarm. You can read more about addressable systems here
Conventional Fire Alarm Systems
With this type of system a number of detectors and call points can be wired to the fire alarm panel in zones. The benefit of using a zoned system means you can wire a circuit per floor or compartment, making it easy to identify roughly where the fire has occurred, it is also an important factor for the fire brigade and building management.
The control panel is wired to a minimum of two two sounder circuits, these contain alarm bells, electronic sounders or other audible devices. Each circuit has an end of line device, which is used for monitoring purposes.
Wireless Fire Alarm Systems
A wireless fire alarm system is essentially an addressable fire alarm system but there is no requirement for cabling. The benefits of this system means a short installation time, although the equipment can cost more than the hard-wired options. Wireless fire alarm systems are a great solution for listed buildings or National Trust sites, where the use of wiring is prohibited.
Installation of your fire detection system.
Remember that you must have the appropriate system for your premise installed (and commissioned) by a qualified Electrical Technician and ensure their work complies with British Standards – BS5839. A commissioning certificate should be supplied on completion of the project.
