Definition
BS 5266 is the British Standard that governs the design, installation, and maintenance of emergency lighting systems in the UK. Part 1 (BS 5266-1) covers non-domestic premises and specifies categories of emergency lighting, minimum illuminance levels, battery duration requirements, testing regimes, and the competence expected of installers and maintenance engineers.
Terms mentioned in this definition
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View training courseBS 5266 is a family of standards governing emergency lighting from multiple angles. The most widely applied part is BS 5266-1, which provides the code of practice for the design, installation, commissioning, and maintenance of emergency lighting in non-domestic premises — offices, factories, schools, hotels, and all other buildings where the Regulatory Reform (Fire Safety) Order 2005 applies.
The standard defines the types of emergency lighting required (escape route, open area anti-panic, and high-risk task area lighting), sets minimum illuminance levels at floor level, specifies battery duration requirements (minimum 1 hour; 3 hours for higher-risk premises), and prescribes the testing regime that must be followed throughout the life of the system.
Like many British Standards, BS 5266 is not directly enacted as law. However, it is the accepted industry benchmark for compliance with the emergency lighting duty under the Regulatory Reform (Fire Safety) Order 2005. Fire and rescue authority inspectors use BS 5266-1 as the reference when assessing whether emergency lighting is adequate. Failure to comply would be used as evidence of negligence in enforcement action.
For new-build and major-refurbishment projects, Approved Document B references emergency lighting requirements by occupancy type. BS 5266-1 gives the technical specification for meeting those requirements.
BS 5266-1 requires that emergency lighting systems are designed, installed, commissioned, and maintained by a competent person — someone with sufficient knowledge, skills, and experience to carry out the work safely and to the required standard. Holding an accredited qualification in emergency lighting (such as a BFC EAL qualification) demonstrates the level of competence the standard expects, and gives the responsible person a defensible record of due diligence.
BS 5266 is the British Standard that governs the design, installation, and maintenance of emergency lighting systems in the UK. Part 1 (BS 5266-1) covers non-domestic premises and specifies categories of emergency lighting, minimum illuminance levels, battery duration requirements, testing regimes, and the competence expected of installers and maintenance engineers.
Requirements for bs 5266 in the UK depend on the type of premises and applicable legislation, including the Regulatory Reform (Fire Safety) Order 2005 and relevant British Standards. The responsible person for a premises must ensure adequate fire safety provisions are in place. The British Fire Consortium can provide guidance — contact our team or search our member directory to find a qualified specialist.
BS 5266 and Emergency Lighting are related fire safety concepts but serve different purposes. See our individual glossary entries for detailed definitions. For expert guidance on which applies to your premises, consult a BFC member company.
The British Fire Consortium offers EAL Level 3 accredited training covering fire safety systems including topics related to bs 5266. Our courses are the only nationally recognised Level 3 qualifications across all fire disciplines. View our training courses or use the member directory to find a qualified trainer near you.
