For a facilities manager, the practical question is: when should emergency lights be tested to demonstrate that a building can guide occupants safely during a power failure? In most Australian commercial buildings, emergency lighting and exit signs require a documented inspection and operational test at least every six months. But a reliable maintenance program starts well before that test date and continues until any defect is rectified.
Emergency lighting is a life-safety system, not simply another lighting asset. It must operate when normal supply fails, illuminate escape routes for the required duration, and make exit paths visible in smoke, low light or a full blackout. A fitting that appears normal during business hours can still have a failed battery, charger or lamp circuit.
When should emergency lights be tested?
The standard maintenance benchmark for emergency lighting in Australia is a six-monthly inspection and discharge test, undertaken in line with AS/NZS 2293.2 and the requirements applying to the specific building. The test generally simulates a mains power failure to confirm that emergency luminaires and exit signs operate from their battery supply for their required emergency duration, commonly 90 minutes.
This is the test that matters most because it verifies real performance, not just whether a green indicator LED is illuminated. A fitting may show that mains power is connected while its battery capacity has fallen below the level needed to support an evacuation.
The exact obligations can depend on the building type, state or territory requirements, a fire safety schedule, tenancy conditions and the installed system. Healthcare facilities, large public venues, education sites and high-risk industrial environments may have additional procedures around testing, access and outage management. Building owners and responsible persons should confirm the applicable requirements rather than relying on a generic calendar reminder.
Six-monthly testing is only part of the maintenance task
A six-monthly discharge test should be supported by regular visual checks as part of routine facilities inspections. These checks do not replace formal testing, but they can identify obvious problems before the scheduled maintenance visit.
Maintenance staff or service contractors should look for damaged diffusers, missing exit signs, obstructed fittings, water ingress, loose mounting, physical impact damage and changed layouts that affect the escape route. A warehouse racking change, office refurbishment or tenancy fit-out can leave an existing emergency light poorly positioned even if the fitting itself still operates correctly.
Indicator lights also provide useful early warning. On many self-contained emergency fittings, a red, flashing or unlit status indicator may point to a charging fault, battery issue or failed electronics. The specific indicator behaviour varies by manufacturer, so site teams should use the product documentation and report faults rather than assuming a fitting is serviceable.
What happens during an emergency lighting test?
A competent technician will isolate or simulate the failure of normal supply to the emergency lighting circuit, then verify that emergency luminaires and exit signs operate as intended. The system must remain operational for its nominated duration. For many systems, this is 90 minutes, although the required duration should be confirmed against the installation design and building requirements.
At the end of the test, the technician checks that fittings have remained illuminated and then restores normal supply so batteries can recharge. Testing should be planned carefully in occupied buildings. Triggering a long discharge test immediately before a night shift, a public event or severe-weather period may leave limited battery reserve while the system recharges.
For this reason, facilities teams often schedule testing outside critical operating periods. A distribution centre may test zones progressively to maintain safe access. A hospital, aged-care facility or 24-hour operation may require a staged approach and coordination with site management. The need for uninterrupted operations does not remove the testing obligation, but it does affect how the work should be managed.
Self-contained fittings and central battery systems
The testing approach differs according to the emergency lighting design. Self-contained emergency lights contain their own battery, charger and control gear. They are common in offices, retail premises, schools and smaller commercial buildings, and each fitting needs to be assessed for operation and battery performance.
Central battery systems supply multiple emergency luminaires from a shared battery source. These systems can simplify maintenance in some larger facilities, but testing requires a clear understanding of circuits, zones, battery capacity and the consequences of isolating supply. A fault at the central source can affect a broad area, making planned testing and accurate records particularly important.
Automatic self-test fittings can reduce manual test labour and provide fault notifications. They are useful in large or difficult-to-access sites, but they are not a reason to abandon inspections. Physical damage, changed room layouts, obscured signs and incomplete maintenance records still need human review.
Test after changes, faults and battery replacement
Do not wait for the next six-monthly date if the system has been altered or repaired. Emergency lighting should be checked following installation work, electrical upgrades, changes to distribution boards, fit-outs that alter escape routes, water damage or a reported fault. Commissioning checks after a new installation are separate from routine maintenance and confirm that the system has been installed, aimed and configured correctly.
Battery replacement also warrants verification. Emergency batteries have a finite service life, and heat, frequent discharges and poor charging conditions can reduce capacity. Replacing a battery without confirming the fitting’s charging function and discharge duration can leave the underlying fault unresolved.
Where a fitting fails a test, it should be clearly identified, recorded and rectified promptly. In many commercial environments, a temporary control may be needed while repairs are arranged, particularly where the fault affects an escape route, stairwell, change room, car park or other area used after normal daylight hours.
Keep records that stand up to an audit
A completed test is only as useful as the evidence behind it. Emergency lighting service records should show the test date, area or fitting identification, test method, required duration, results, defects found, corrective action and the person or contractor who completed the work.
Accurate records help facilities teams demonstrate that routine maintenance has occurred and that faults have been managed. They also provide a practical asset history. Repeated battery failures in a hot plant room, for example, may indicate that a different fitting type, improved ventilation or a revised maintenance approach is needed.
For multi-site portfolios, a consistent asset register makes it easier to track test due dates, recurring defects and replacement programs. It also supports better budgeting. Rather than responding to individual failures, property managers can plan upgrades for ageing emergency fittings before maintenance costs and compliance risk increase.
Common gaps that undermine emergency lighting performance
The most common issue is treating the test button as a complete performance check. A short push-button test may prove that a lamp illuminates, but it does not prove that the battery will sustain the fitting for the required duration. Full discharge testing remains necessary.
Another gap is assuming that LED emergency fittings are maintenance-free. LED technology can reduce energy use and lamp replacement requirements, but batteries, chargers, electronics and physical installation conditions still require inspection. Energy efficiency and life-safety performance must both be maintained.
Finally, emergency lighting must match the current building layout. New partitions, tall storage, signage, suspended displays and relocated workstations can obstruct light distribution or conceal an exit sign. Any significant change to the space should prompt a review of emergency lighting coverage, not just a visual check of the nearest fitting.
A practical maintenance approach for commercial sites
For most facilities, the most effective approach is to maintain a six-monthly test schedule, include emergency fittings in routine visual inspections, record every result and rectify defects without delay. Pair that program with a review whenever the building layout, electrical infrastructure or operating hours change.
EO Lighting can assist commercial sites with emergency lighting supply, assessment, installation and ongoing service as part of a broader lighting maintenance strategy. The objective is straightforward: reduce operating risk while ensuring emergency lighting remains functional when normal lighting is no longer available.
The best time to test emergency lighting is before an emergency exposes a fault. A planned, documented program gives building managers a clear view of system condition and gives occupants a safer path out when it matters.