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Last edited 18 Sep 2020
BS 5839-1: Fire detection and fire alarm system for buildings. Code of practice for design, installation and commissioning and maintenance of systems in non-domestic premises
BS 5839-1:2017 'Fire detection and fire alarm system for buildings. Code of practice for design, installation and commissioning and maintenance of systems in non-domestic premises' is referred to in both volumes of Approved Document B, which concerns building regulations [in England] covering fire safety matters within and around buildings.
The standard covers the planning, design, installation, commissioning and maintenance of fire detection and fire alarm systems in and around commercial buildings. It is relevant to anyone involved in these areas of work.
- Section 1: General.
- Section 2: Design considerations.
- Section 3: Limitation of false alarms.
- Section 4: Installation.
- Section 5: Commissioning and handover.
- Section 6: Maintenance.
- Section 7: User's responsibilities.
Some of the key changes in the standard include:
- Improved definition of the L2 fire alarm system which offers automatic detection on all escape routes.
- Modified guidance for use of multi-sector detectors.
- Requirement for clarification regarding the use of voice alarm detectors (VADs) and visual indicator devices (VID).
- Testing of the power supply, contingency power, and so on.
- Guidance for people working at night.
The revisions to the standard began before the Grenfell Tower fire in June 2017, with a public consultation held in 2016, and so it does not address residential buildings. However, a BSI spokesperson said that the standard may be further revised if investigations into the tragedy raise relevant points.
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- BS 9991:2015 Fire safety in the design, management and use of residential buildings. Code of practice.
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- Fire detection and alarm system.
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