Emergency lighting saves lives by illuminating escape routes when normal power fails. Yet it's one of the most commonly non-compliant fire safety systems. Here's everything you need to know.. Why Emergency Lighting Matters When fire causes a power failure — or when power is deliberately cut during a fire emergency — escape routes plunge into darkness. In a building full of panicking occupants trying to find exits, darkness can turn an orderly evacuation into a fatal crush. Emergency lighting provides the minimum illumination needed to navigate escape routes safely. It is a legal requirement in virtually all non domestic buildings and in the communal areas of residential buildings. Legal Requirements Emergency lighting is required by: Regulatory Reform (Fire Safety) Order 2005 — Article 14 (emergency routes and exits) Building Regulations — Approved Document B (provisions for means of escape lighting) BS 5266 1 — Code of practice for emergency lighting BS EN 1838 — Lighting applications for emergency lighting Health and Safety at Work Act 1974 — general duty to ensure safe means of escape Types of Emergency Lighting Escape Route Lighting Illuminates defined escape routes Minimum 1 lux on the centre line of escape routes 50% of the required illuminance within 5 seconds Full illuminance within 60 seconds Must operate for minimum 3 hours (1 hour in some limited applications) Open Area (Anti Panic) Lighting Illuminates large open areas ( 60m²) Minimum 0.5 lux across the core area Prevents panic and allows safe movement toward escape routes Required in spaces like open plan offices, retail floors, and assembly areas High Risk Task Area Lighting Illuminates positions where dangerous processes must be safely shut down Minimum 10% of normal task lighting or 15 lux (whichever is greater) Required within 0.5 seconds of power failure Applies to: plant rooms, electrical switchgear, control rooms System Types Self Contained Each luminaire has its own battery Battery charges from mains supply Activates automatically on mains failure Advantages: no central point of failure, simple installation Disadvantages: each unit requires individual testing, battery replacement at 3 4 year intervals Central Battery Central battery system powers all emergency luminaires Easier to monitor and test centrally Higher initial cost but lower long term maintenance Advantages: centralised monitoring and testing, longer battery life Disadvantages: single point of failure risk (mitigated by system design) Testing Requirements BS 5266 1 specifies a comprehensive testing regime: Test Frequency Duration What to Check Function test Monthly Brief (sufficient to check operation) All luminaires illuminate Battery duration test Annually Full rated duration (3 hours) All luminaires maintain output Changeover test 6 monthly Brief Automatic switching operates Critical: Testing must be documented in a log book. Missing test records are one of the most common findings in fire safety inspections. Common Non Compliance Issues Our surveys consistently find: 1. Missing luminaires — escape routes without adequate coverage 2. Failed units — luminaires that don't illuminate on test (dead batteries) 3. No testing records — the most common compliance failure 4. Incorrect specification — luminaires that don't meet the required illuminance levels 5. Blocked or obscured luminaires — covered by decorations, signage, or storage 6. Missing exit signs — particularly at final exits and changes of direction 7. No annual duration test — monthly tests done but annual 3 hour test missed For emergency lighting design, installation oversight, and compliance surveys, contact Magnus Opifex.