As of 30 April 2025, BS 5839-1:2017 was officially withdrawn and replaced by BS 5839-1:2025. The withdrawal of the previous British Standard brings a range of important changes to fire detection and alarm systems in non-domestic premises across the UK.
The revised standard, which aims to provide the most comprehensive and up-to-date recommendations for fire detection and fire alarm systems, provides recommendations and guidance on planning, design, installation, commissioning and maintenance.
Fire Detection and Fire Alarm Systems for Buildings – Part 1: Design, installation, commissioning, and maintenance of systems in non-domestic premises – Code of practice (BS 5839-1) is designed to enhance fire protection, reduce risk, and support safety for building occupants in the event of a fire).
BS 5839-1 covers systems that include manual call points, sounders, automatic fire detectors, and interlinked control and indicating panels. It also addresses systems that are capable of providing signals to initiate the operation of other fire protection systems or safety measures — such as smoke control systems, automatic door release mechanisms, gas or oil shut-off valves, and lift grounding.
Whatever your role is within fire safety, it is essential that you understand the implications of this revised standard and have the knowledge to implement these changes.