EMERGENCY LIGHTING
Commercial Emergency Lighting
General Overview: Importance Of Emergency Lighting To Life Safety
Emergency lighting plays a critical role in life safety during emergencies such as fires, power outages, or natural disasters. Its primary function is to illuminate escape routes and safety-critical areas to ensure people can evacuate buildings safely and efficiently. Emergency lighting is vital for occupant safety during emergencies, ensuring that people can navigate to safety quickly and safely. To be effective, systems must be designed in compliance with relevant standards, regularly maintained, and tailored to the specific risks and layout of a building. Designing a robust emergency lighting system requires a balance between regulatory compliance, technical performance, and practical installation considerations.
Why It’s Essential:
- Safe Evacuation: Guides occupants to exits, preventing panic and disorientation in low-visibility conditions.
- Accident Prevention: Reduces the risk of trips, falls, or injuries during blackouts or smoke-filled environments.
- Emergency Response Support: Assists firefighters, medics, and other emergency responders in navigating the building.
- Compliance with Safety Codes: Essential for meeting legal requirements and avoiding liability.
Standards & Codes Governing Emergency Lighting Systems
Several international and national standards ensure emergency lighting systems are reliable and effective:
Key Standards:
- International Building Code (IBC)
- Mandates emergency lighting in stairways, corridors, and exit paths.
- Requires systems to activate automatically upon power loss.
- IEC 60598-2-22 (International)
- Standard for luminaires used in emergency lighting.
- Covers performance and safety requirements.
- BS 5266-1 (UK)
- Comprehensive guidance on emergency lighting design, installation, and maintenance.
- Defines categories such as escape lighting, standby lighting, and high-risk task area lighting.
- EN 1838 (Europe)
- Defines photometric and design requirements of emergency lighting.
Key Factors In Designing An Emergency Lighting Solution
Designing a compliant and effective emergency lighting system involves consideration of the following:
- Risk Assessment
- Evaluate building use, occupancy levels, and potential hazards.
- Identify high-risk areas (e.g., staircases, long corridors, basements).
- Escape Route Illumination
- Ensure all escape routes are illuminated to a minimum of 1 lux along centre lines.
- Include signage lighting for exit signs.
- Duration and Power Source
- Systems must operate for at least 90 minutes (or as specified by local code).
- Common power sources include central battery systems, self-contained units, or generator-backed circuits.
- Type of Emergency Lighting
- Maintained: Always on (used in areas like theatres).
- Non-maintained: Only illuminates during power failure.
- Combined: Features both maintained and emergency functions.
- System Testing and Maintenance
- Must include regular testing (e.g., monthly functional, annual full duration).
- Modern systems may include self-testing emergency luminaires.
- Lighting Levels and Placement
- Must achieve uniform lighting without glare or deep shadows.
- Proper spacing and mounting height are critical.
- Integration with Fire Alarm and Building Systems
- Should activate automatically with fire alarms or mains failure.
- Consider central monitoring and smart diagnostics.
| Emergency Lighting: Weekly Test vs. PPM Inspection (BS 5266-1) | ||
|---|---|---|
| Aspect | Weekly Emergency Lighting Test | PPM Inspection (BS 5266-1 Compliant) |
| Frequency | Weekly | Annually (full duration test) + Intermediate PPM visits |
| Performed by | Customer / Responsible Person | Competent person / qualified contractor |
| Test Type | Functional test | Full duration test (usually 3 hours) + system inspection |
| Purpose | Confirm emergency lights operate correctly | Verify compliance with BS 5266-1 and overall system integrity |
| Scope of Work | Switch lights to emergency mode; check operation | Check all luminaires, batteries, charging circuits, logs, signage, duration testing, and system layout |
| Duration of Test | Typically a few seconds | 1 to 3 hours depending on site size and system type |
| Equipment Needed | Manual test switch or key switch | Tools for inspection, test equipment, access equipment |
| Documentation Required | Record in site logbook | Formal inspection report + logbook update |
| Corrective Actions | Note faults and arrange repair | Identify and recommend/perform repairs; ensure compliance |
| Legal/Standards Reference | BS 5266-1:2016; Fire Safety Order 2005 (UK) | BS 5266-1:2016; BS EN 50172; Fire Safety Order 2005 (UK) |
Here a clear, practical Weekly Emergency Lighting Test Checklist that complies with BS 5266-1:2016 and is suitable for use by a Responsible Person or building manager. Weekly Emergency Lighting Test Checklist in accordance with BS 5266-1:2016 and the Regulatory Reform (Fire Safety) Order 2005 (UK).
| Weekly Emergency Lighting Test Checklist in accordance with BS 5266-1:2016 and the Regulatory Reform (Fire Safety) Order 2005 (UK) | ||
|---|---|---|
| Checklist Item | Tick (✓) | Comments / Faults Identified |
| 1. Notify occupants of the test (if required) | ||
| 2. Ensure you have the necessary key or access tool for the test switch | ||
| 3. Operate the emergency lighting test switch (or circuit breaker) to simulate power failure | ||
| 4. Walk through the building and check that all emergency lighting fittings: | ||
| 4.1 Illuminate as expected when mains power is interrupted | ||
| 4.2 Illuminate as expected when mains power is interrupted | ||
| 4.3 Are not obstructed (e.g. signage clearly visible) | ||
| 5. Restore the power after confirming all emergency lights are working | ||
| 6. Check indicator LEDs (if fitted) revert to “charging” status | ||
| 7. Record the test in the Emergency Lighting Logbook | ||
| 8. Report any faults to maintenance or responsible contractor | ||
Notes:
- Test Duration: Only a short functional test is needed (typically a few seconds) to confirm that lights come on.
- Do not perform full-duration tests weekly, as this can shorten battery life.
- Logbook Entry: Include date, initials, any faults, and actions taken or required.
Advantages Of Wireless Intruder Alarms Vs Hard Wired Systems
Our intruder alarm systems use the latest technology movement detectors, magnetic contacts, break-glass / vibration detectors and infra-red beam detectors for flexibility and complete protection. Reliability is essential, that’s why all our systems are installed using a range of control panels and detection devices from leading manufacturers’ that are tried and tested solutions. Installed by our experienced engineers in accordance with the latest British and European Standards EN50131.
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