Heritage and refurbishment
Fire detection and fire alarm systems for buildings. Code of practice for design, installation, commissioning and maintenance of systems in non-domestic premises states that radio integrity testing must be completed prior to the installation of radio based wireless devices. The European approved frequency reserved
exclusively for alarm signalling systems is 868MHz to 870MHz, and it is essential that equipment is third party tested to conform to BS EN 54-23: 2010: Fire detection and fire alarm systems. Fire alarm devices. Visual alarm devices. The survey should measure the integrity of the radio transmission across the site and also pinpoint the location of each wireless device, which gives a detailed schedule for installation and delivers a fixed set capital equipment cost. By removing the need to run wire, manage
containment and firestopping, find and fix earth and cable faults, and deal with all the unknowns that digging into the structure of any building brings – even more significant in heritage sites – wireless brings new benefits for end users, specifiers and installers. For example, the installation can be planned
in detail, including the specific devices required and the time it will take. The occupants of the building rarely need moving – an especially important element in museums, hotels and other common uses for heritage sites. Fire watches are avoided, and safety and compliance are delivered quickly.
Cutting edge
There is no compromise on the performance a high performance wireless fire system will deliver. The best are at least the equal of traditional wired systems and offer a number of unique benefits. It is advisable to work with a brand specialised in high performance fire devices as well as wireless communications – the two critical benchmarks of a dependable supplier. Products Hyfire offers include ongoing fire sensor development; dual optical, multi criteria and heat detectors; input and output modules; wall and base sounders and sounder beacons; visual alarm devices (VADs) and visual indicating devices (VIDs); and even more niche technology, such as wireless door holders. The basic topology of the system remains
the same, using standard addressable or conventional panels connected via wiring loops to wireless translators. These build up the wireless communication network on which the input and output devices sit. The extent of these high performance systems is limited only by installation standards or the number of devices that a fire panel can control. Because standard panels are used, you can also select the performance levels required for the site, with direct connection to an alarm receiving centre or the fire and rescue service being an option. Aesthetics are a key issue in many heritage buildings, especially in rooms with notable ceilings
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www.frmjournal.com APRIL 2020
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