Fire Alarm Systems
A fire alarm system is a crucial life safety system engineered to detect the presence of fire or fire-related hazards, such as smoke or carbon monoxide, and subsequently alert building occupants and emergency services. It functions not as a singular device, but as an integrated network of interconnected components.
Typically, a fire alarm system comprises a central control panel, manually operated call points (often referred to as 'break glass' units), and various automatic detectors (including smoke, heat, carbon monoxide (CO), or multi-sensor types). These components are interconnected by fire-resistant cabling, or in some applications, wirelessly.
Fire alarm control panels are broadly categorised into two primary types:
Conventional Systems: In these systems, devices are wired in radial formations. They offer fundamental functionality, indicating the specific zone where an alarm or fault condition has occurred. While representing older technology, conventional systems are generally more cost-effective for smaller properties.
Addressable Systems: Featuring devices wired in resilient loop configurations, addressable systems offer significantly enhanced functionality. This contemporary technology provides precise identification of the individual device that has activated during an alarm or is experiencing a fault. Although the initial cost of equipment and installation is typically higher than conventional systems, addressable systems are often mandated or highly recommended for properties with vulnerable occupants, complex building layouts, or high-risk environments, due to their advanced capabilities for precise incident location and integrated control.
Testing and servicing of fire alarm systems
Inline with BS5839-1:2025, a fire alarm system needs to be:
Tested weekly (by a responsible person with an understanding of the fire alarm system). A weekly test includes setting off a manual call point, confirming sounders/ strobes have activated and that the activation has been registered at the fire alarm control panel. The system is then reset and the test is logged in the onsite logbook.
Serviced Biannually (sometimes sooner on larger, complex sites with large numbers of devices). This involves checking and testing backup batteries, testing detectors, call points, sounders, strobes, interfaces and any other function connected to the fire alarm system. These services are to be carried out by a competent person.
We also offer design, installation, commissioning, maintenance/ modifications & zone charts. This includes all necessary documentation/ certification.
