Table of Contents
- What You’ll Need Before You Start
- BS 5266 Emergency Lighting Standards Explained
- Monthly Emergency Lighting Test Procedure
- Annual Emergency Lighting Discharge Test
- Using an Emergency Lighting Testing Logbook Template
- Common Mistakes to Avoid When Maintaining Emergency Lighting
- When to Call a Professional for Emergency Lighting Maintenance
- Frequently Asked Questions
Last Updated: September 13, 2026
What You’ll Need Before You Start
Maintaining emergency lighting systems to a compliant standard starts with basic preparation. This guide from B Q Security LTD covers the full routine, from monthly flick tests to the annual discharge test, so you can keep your premises compliant and your occupants safe.
Emergency lighting is a self-contained system of battery-backed luminaires that illuminates escape routes when the mains supply fails. It is a legal requirement in most non-domestic premises under the Regulatory Reform (Fire Safety) Order 2005, enforced by your local fire and rescue service. The responsible person must ensure the system is tested and maintained, and the GOV.UK fire safety guidance for non-domestic premises sets out that duty clearly.
Before you begin any test, gather the following:
- A test key or flick switch for each circuit
- A clipboard or tablet for recording results
- Your emergency lighting testing logbook template
- A torch for inspecting dark corridors
- The manufacturer’s instructions for your specific fittings
One practical point most guides skip: know where your test switch is before you need it. On larger sites, the switch is often in a plant room or landlord’s cupboard, and hunting for it mid-test wastes time.
BS 5266 Emergency Lighting Standards Explained
BS 5266 is the British Standard that governs emergency lighting design, installation, and testing. It is published in several parts, and Part 8 covers the routine testing and maintenance regime you need to follow. The standard is not law in itself, but it is the benchmark fire authorities expect you to meet.
The testing schedule BS 5266 sets out is straightforward:
| Test | Frequency | Duration | What It Checks |
|---|---|---|---|
| Function test | Monthly | A few seconds | Lamps illuminate on demand |
| Short duration test | Every 6 months | 1 hour | Battery holds a short load |
| Full discharge test | Annually | 3 hours | Full rated duration |
The three-hour figure matters because escape lighting must run long enough for a full evacuation. If a fitting fails at the one-hour mark, you have a genuine compliance gap, not a minor fault.
Monthly Emergency Lighting Test Procedure
The monthly test is a quick function check, not a full discharge. It confirms every lamp and its changeover device works when the mains supply is interrupted.
Run it like this:
- Press the test key or flick the switch to simulate a power failure.
- Walk the escape routes and confirm each luminaire illuminates.
- Check the green or red indicator LED is lit on self-testing fittings.
- Release the switch and confirm the mains supply restores.
- Record the date, time, and any failures in your logbook.
A common mistake is only testing the fittings you can see. Store cupboards, plant rooms, and stairwells all need checking, because that is where a failure is most likely to go unnoticed.
Test in daylight hours where possible and note the ambient light level. A lamp that looks bright in a dark corridor may be failing in a well-lit one, and you will only catch that if you record the conditions.
Annual Emergency Lighting Discharge Test
The annual test is the one that catches battery degradation. You switch off the mains supply to the emergency lighting circuit for the full rated duration, usually three hours, and confirm every fitting stays lit throughout.
The key difference from the monthly check is duration. A battery can pass a few seconds of load and fail at two hours, so the annual test is your only real proof the system would work in a genuine emergency.
Practical steps for the annual test:
- Schedule it outside operating hours to avoid disruption
- Switch off the circuit at the distribution board or test switch
- Monitor fittings at intervals, not just at the start
- Log any fitting that dims or fails before the full duration
- Recharge batteries for at least 24 hours afterwards
If a fitting fails, replace the battery or the unit before the next inspection. Repeated failures on the same circuit usually point to an ageing battery bank rather than individual lamps.
Using an Emergency Lighting Testing Logbook Template
Your logbook is the evidence that you have done the work. Fire officers ask for it during inspections, and a missing or incomplete record is treated as seriously as a failed test.
A compliant emergency lighting testing logbook template should capture the following for every test:
- Date and time of the test
- Name of the person carrying out the test
- Type of test (monthly, six-monthly, or annual)
- Duration of the test
- Individual fittings tested and their locations
- Any failures and the remedial action taken
- Date faults were rectified
Keep the logbook on site and make it available on request. Paper is fine, but a digital template makes it easier to spot patterns, such as a circuit that fails every few months.
Do not backfill the logbook after an inspection request. A sudden run of identical entries dated the same day is an obvious red flag to a fire officer and can undermine your whole compliance record.
Common Mistakes to Avoid When Maintaining Emergency Lighting
The most frequent failures are not equipment faults, they are process faults. Fix the process and the equipment looks after itself.
- Skipping the annual test. Monthly checks are easy to keep up with; the three-hour discharge test is the one that gets deferred, and it is the most important.
- Ignoring self-test fittings. Modern self-testing units flag faults themselves, but only if someone reads the indicator and acts on it.
- Testing only visible fittings. Hidden escape routes are where failures persist unnoticed.
- Failing to recharge batteries. After a discharge test, batteries need a full recharge cycle before the system is back to rated capacity.
- Using the wrong replacement battery. Fit the type and capacity specified by the manufacturer, or the rated duration will not hold.
When to Call a Professional for Emergency Lighting Maintenance
Some tasks are within the reach of an on-site facilities team. Others need a competent person with the right test equipment and knowledge of the standard.
Call in a professional when:
- You need a full design review or a new installation
- Multiple fittings fail the annual discharge test
- Your logbook has gaps you cannot account for
- You are preparing for a fire authority inspection
- Your premises have changed use or layout since the last review
B Q Security LTD provides professional installation and maintenance of fire alarm and emergency lighting systems for commercial premises, alongside the Fire Industry Association’s guidance on choosing a competent maintainer. A qualified provider can certify your system against BS 5266 and keep your logbook inspection-ready. If you are unsure whether your current arrangement meets the standard, the Health and Safety Executive’s guidance on fire safety responsibilities is a useful starting point.
The monthly flick test protects you day to day, but the annual three-hour discharge test is what proves your system would actually work in an emergency. Never let it slip.
Frequently Asked Questions
What are the legal requirements for emergency lighting maintenance?
The Regulatory Reform (Fire Safety) Order 2005 requires the responsible person to keep emergency lighting in efficient working order. BS 5266-1 and BS EN 50172 set out the testing schedule: monthly function tests, annual discharge tests, and a written record of all checks. Failure to maintain can lead to enforcement action, fines, or prosecution.
How often should emergency lighting be tested?
Monthly function tests check that each luminaire illuminates when the test button is pressed. An annual discharge test runs the lights on battery for their full rated duration, typically 3 hours. Some systems also need a daily visual check of indicators. Records must be kept and made available to enforcing authorities on request.
Can a business owner perform their own emergency lighting checks?
Yes, routine monthly function tests and visual inspections can be done in-house by a competent person. However, the annual discharge test and any repairs or replacements should be carried out by a qualified electrician or emergency lighting specialist. If you are unsure, B Q Security can provide professional installation of fire alarm systems to help you achieve compliance.
What records must be kept for emergency lighting systems?
You must keep a logbook recording every test, including the date, time, duration, results, and any faults found, along with the name of the person who carried out the check. The logbook should also note remedial actions taken. BS 5266-1 recommends retaining records for at least three years, and they should be available for inspection by the fire authority.
Emergency lighting maintenance is only as good as the routine behind it, and a system that has never had a proper discharge test is a compliance risk waiting to surface. B Q Security LTD can take that burden off your hands with professional installation, 24/7 monitoring, and maintenance that keeps your logbook inspection-ready. Request a quote and get a system you can trust when it matters most.