Guides & technical articles
Fault diagnosis walkthroughs, UK standards explained, and practical advice for engineers at every stage — from apprentice to commissioning.
Showing 1–18 of 302 matching articles
BS 5839-1:2025 Alarm Transmission: New Timings and the PSTN Switch-Off
What BS 5839-1:2025 changed for alarm transmission to an ARC: new maximum signal and catastrophic-failure timings, the PSTN switch-off, and the new false-alarm test notice.
BS 5839-1:2025 Extensions, Modifications, Firmware Updates and the Logbook
What the FIA reports as new in BS 5839-1:2025 for extensions and modifications: Section 7, firmware updates as modifications, certificates, redundant devices, variations, and documentation.
BS 5839-1:2025 False Alarm Rate: How to Calculate It and When to Investigate
How to work out the false alarm rate for a fire alarm system under BS 5839-1:2025, the preliminary and in-depth investigation trigger points, and worked examples.
BS 5839-1:2025 Servicing: Intervals, Tolerance and What Each Visit Should Cover
What BS 5839-1:2025 changed for fire alarm servicing: the six-month interval with a five to seven month tolerance, ARC signal checks, remote service and cyber security.
Fire Alarm Systems in Co-Working and Shared Serviced Offices
Why one fire alarm system serving several independent tenant businesses needs its own zoning, interface and coordination thinking, not a single-tenant approach.
Fire Alarm Systems in Fairgrounds and Theme Parks
Why a theme park's fixed buildings sit under ordinary BS 5839 rules while its rides sit under separate HSE fairground safety guidance, and where the line falls.
Fire Alarm Detection in Crematoria and Funeral Premises
Fire detection choices around a crematorium's cremator room — genuine thermal risk, radiant heat nuisance, and keeping detection separate from process heat.
Fire Alarm Systems in Stadia and Large Outdoor Assembly Venues
Why a stadium fire alarm sits alongside the Sports Grounds Safety Authority's Green Guide rather than instead of it, and what that means in practice.
Fire Alarm Detection in Zoos, Aquariums and Animal Enclosures
Why zoo and aquarium buildings defeat standard smoke detection — heat lamps, humidity and animal enclosures — and what actually works instead.
Where BS 5839 Ends and Maritime Fire Safety Begins: Boats and Marine Vessels
Why BS 5839 governs buildings, not vessels — and where a marina's shore-side fire alarm responsibility ends and Maritime and Coastguard Agency rules begin.
Fire Alarm Strategy for Occupants with Dementia or Cognitive Impairment
How fire alarm strategy should account for dementia or cognitive impairment — what the law requires, what BS 5839-1 recommends, and what is good practice.
Fire Alarm Detection in Electrical Substations and Switchrooms
How fire detection choices differ in HV/LV substations and switchrooms — thermal risk without visible smoke, aspirating detection and placement around live plant.
Fire Alarm Detection in Vehicle Workshops and Repair Garages
Fire detection choices for vehicle workshops and garages — fumes and dust driving false alarms, and why point smoke detection is often the wrong default.
Fire and Smoke Alarm Considerations for Airtight, MVHR-Ventilated New-Build Dwellings
How rising airtightness and mechanical ventilation with heat recovery (MVHR) affect domestic smoke alarm siting and ductwork risk for UK engineers.
Keeping a Fire Alarm System Working During Cladding Remediation Works
Practical fire alarm engineering considerations while a building undergoes external wall or cladding remediation works — protection, false alarms and liaison.
Fire Alarm Strategy for Co-Living and Build-to-Rent Developments
How co-living and build-to-rent buildings differ from HMOs and student halls for fire alarm strategy, shared amenity detection and responsible person duties.
Fire Detection and Alarm Strategy for E-Bike and E-Scooter Battery Storage
How e-bike and e-scooter lithium battery fire risk affects fire alarm strategy in residential blocks, and what a maintaining engineer should flag.
Fire Alarm and Detection Considerations for Modern Methods of Construction (MMC)
How volumetric modular and off-site manufactured buildings change fire alarm installation, cabling and compartmentation-linked detection for UK engineers.
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