Technical terms spanning standards, manufacturers, commissioning, networking, testing and fault finding.
Technical guidance only. Confirm current project requirements against the applicable standards, legislation, system documentation and site-specific fire strategy.
Showing 12 of 12 matching glossary entries.
A fire alarm system in which each device has a unique address, letting the panel identify exactly which detector, call point or interface generated an event.
Makes fault-finding far faster than conventional zones — always keep the device schedule current.
Emergency lighting powered from a central battery installation rather than batteries in each fitting, concentrating maintenance at one point.
Radial (spur) wiring; devices beyond a break are lost, so a break shows as multiple missing devices downstream of one point.
A protected waiting area where a person unable to use escape stairs can call for assistance and await evacuation, served by two-way communication.
The European product standards for fire detection and alarm system components — panels, power supplies, detectors, call points, sounders, isolators and radio devices each have their own part.
The fixed two-way speech system linking refuge points and fire telephones to a control position for use during evacuation and firefighting.
The UK convention describing system objectives: L categories protect life, P categories protect property, M is manual-only; the category drives detection coverage.
Confirm the category from the design documentation before judging coverage — never assume.
The two-wire circuit connecting addressable devices to the panel, normally wired as a ring so devices remain in communication from either direction if the ring is broken at one point.
The break-glass device that lets an occupant raise the alarm manually; tested with the manufacturer's key so the frangible element is not broken.
A point detector sensing light scattered by smoke particles in its chamber; effective on smouldering fires, more prone to dust and steam nuisance alarms.
The current a system draws in normal standby, from panel and all devices together; the first input to any battery calculation.
Loop devices often dwarf the panel's own figure — never use the panel datasheet alone.
A hands-free refuge outstation, typically at disabled refuge points.
Intelligibility both ways is the test — a call that connects but can't be understood is a fail.