Emergency lighting is a critical life-safety system designed to provide illumination when the normal mains power supply fails. Its primary purpose is to ensure that building occupants can safely and quickly evacuate during emergencies such as fires, electrical failures, natural disasters, or other incidents that result in loss of normal lighting.

Emergency lighting systems typically operate automatically upon power failure and are powered by standalone local batteries, central battery systems, or generators. They are specifically designed to function independently of the main electrical supply.

Emergency lighting generally falls into three key categories:

• Emergency Escape Lighting: This type of lighting illuminates escape routes, including corridors, stairwells, ramps, and exit doors. It helps occupants:
  • Identify safe paths of travel
  • Avoid obstacles and changes in level
  • Reach final exits safely
•  Exit Signs: provide clearly visible directional information indicating the location of exits. They are especially important in unfamiliar buildings, low-visibility conditions, or where panic may occur.
• Standby Lighting: used in certain buildings where activities must continue safely during power loss, such as hospitals, control rooms, or industrial environments. While not always required for evacuation, it supports operational safety.

Together, these components form a system that supports orderly evacuation, reduces confusion, and significantly lowers the risk of injury or fatalities during emergencies.

Why Emergency Lighting Maintenance Is Important

Emergency lighting is often inactive for long periods and is only relied upon during emergencies. A system that appears functional during normal operation may fail when needed if it has not been properly maintained.

Routine maintenance identifies faults early, reducing costly emergency repairs, unplanned downtime, and safety incidents. It also demonstrates due diligence by building owners and managers.

Effective maintenance is essential to:

• Ensure lights operate correctly during power failure;
• Confirm batteries and control gear are functional;
• Maintain compliance with building codes and safety legislation;
• Reduce risk of injury, liability, and legal penalties;
• Protect occupants, visitors, and emergency responders.

Most jurisdictions require emergency lighting to be tested, documented, and kept in operable condition. Failure to comply can result in:

• Regulatory enforcement action
• Insurance claim issues
• Civil or criminal liability following an incident

A poorly maintained emergency lighting system can create dangerous evacuation conditions and expose building owners or managers to significant legal and financial risk.

Maintenance Responsibilities

Responsibility for emergency lighting maintenance rests with the building owner or the designated responsible person, such as a facilities manager. Maintenance activities must be undertaken by competent persons with appropriate training, knowledge, and authority. Responsibilities include:

• Ensuring maintenance is conducted at prescribed intervals
• Providing access to luminaires and control equipment
• Ensuring faults are rectified within required time frames
• Maintaining accurate and accessible records

Key Emergency Lighting Maintenance Tasks

Maintenance should be conducted by competent persons in accordance with relevant standards and manufacturer instructions. The scope of maintenance generally includes the following:

Visual Inspections

Visual inspections are the first line of defence against system failure and are typically performed monthly or at scheduled intervals. These inspections include:

• Confirming all emergency luminaires and exit signs are present and securely mounted
• Checking that fittings are clean, undamaged, and not painted over
• Ensuring lights and signs are not obstructed by furniture, signage, or building modifications
• Verifying that charge indicator lights are illuminated and operating correctly
• Checking that test switches and labels are accessible and functional

Visual defects often indicate deeper system problems and should be addressed promptly.

Functional Testing

Functional testing verifies that emergency lights operate correctly when normal power is interrupted.

Short-Duration Tests

Conducted monthly or six-monthly (depending on jurisdiction), these tests:

• Simulate a power failure
• Confirm that each luminaire illuminates
• Verify correct switching from mains to battery supply

Full-Duration Tests

Typically conducted annually, full-duration tests:

• Require emergency lights to operate for their rated emergency duration (commonly 90 or 120 minutes)
• Confirm battery capacity and system endurance
• Identify ageing batteries that may pass short tests but fail under sustained load

After testing, systems must be allowed adequate time to fully recharge.

Battery and Component Maintenance

Batteries are the most failure-prone component of emergency lighting systems. Maintenance tasks include:

• Inspecting batteries for swelling, leakage, corrosion, or overheating
• Measuring battery capacity and charge performance where required
• Replacing batteries that no longer meet performance criteria
• Checking lamps, LEDs, diffusers, and control gear for correct operation
• Verifying that charging circuits and power supplies are functioning correctly

Proactive battery replacement is often recommended to avoid unexpected failures during emergencies.

Fault Rectification and Repairs

Any defects identified during inspections or testing must be:

• Recorded
• Prioritised based on risk
• Repaired or replaced within required timeframes

Temporary measures may be required if immediate repair is not possible, particularly where escape routes are affected.

Record Keeping and Documentation

Accurate documentation is a legal requirement in most jurisdictions and provides evidence of compliance. Records should include:

• Dates and results of inspections and tests
• Details of faults identified
• Corrective actions taken
• Battery and component replacement dates
• Name of the person or contractor performing the work

Logbooks should be kept on site and made available to inspectors, auditors, or fire authorities.

Local Regulations and Standards

While specific requirements vary, all regions mandate regular testing, maintenance, and documentation.

Australia and New Zealand

Emergency lighting in Australia is governed by:

• AS/NZS 2293 Series: Emergency lighting and exit signs for buildings
• AUS: National Construction Code (NCC)
• NZ: Building Code Clause F6 – Visibility in Escape Routes
• NZ: Fire and Emergency New Zealand (FENZ) compliance requirements

Key requirements include:

• Six-monthly and annual testing regimes
• Minimum emergency lighting duration requirements
• Mandatory maintenance records
• Timely rectification of faults
• Applicability to most commercial, public, and multi-residential buildings

Canada

In Canada, emergency lighting requirements are set through:

• National Building Code of Canada (NBCC)
• Canadian Electrical Code (CEC)
• Provincial and territorial fire and safety regulations

Typical requirements include:

• Emergency lighting along exit routes and in public areas
• Battery units capable of meeting minimum duration requirements
• Periodic testing and inspection
• Documentation available for fire safety inspections

United Kingdom

The UK framework includes:

• BS 5266 Series: (Emergency lighting standards)
• Regulatory Reform (Fire Safety) Order 2005
• Building Regulations

Key responsibilities include:

• Monthly functional testing
• Annual full-duration discharge testing
• Maintenance of a logbook
• Appointment of a “Responsible Person” to manage compliance
• Prompt repair or replacement of defective equipment

Conclusion

Emergency lighting is a fundamental component of building life-safety systems. Its effectiveness depends not only on correct installation but on ongoing, structured maintenance.

Regular inspections, functional testing, proactive component replacement, and accurate record keeping ensure emergency lighting systems perform reliably when needed most. By complying with applicable standards and legislation, building owners and managers protect occupants, demonstrate due diligence, and significantly reduce legal and operational risk.

Author: Louise Gardner, General Manager at Dewick & Associates