The main difference between maintained and non-maintained emergency lighting is how they operate during normal conditions and power failures:
Maintained Emergency Lighting:
- Always On: Maintained lights are on at all times, even during normal power supply conditions.
- Dual Function: They can serve as standard lighting during normal operations and switch to battery power during a power failure.
- Typical Uses: Found in public areas like cinemas, shopping centres, and offices where lights need to be on continuously, such as exit signs or corridors.
Non-Maintained Emergency Lighting:
- Only Activates During Power Failures: Non-maintained lights remain off during normal operations and only turn on when there is a power failure.
- Backup Lighting: Operates solely as emergency lighting, powered by a backup battery when the main power supply is lost.
- Typical Uses: Common in workplaces, stairwells, and places where emergency lighting is only needed during an emergency evacuation.
Both types are crucial for ensuring safe evacuation during emergencies, but they serve different purposes depending on the environment and requirements.
Are there any other kinds?
Sustained (Combined) Emergency Lighting:
- Dual Light Sources: Contains two sets of lamps – one powered by the mains and another powered by a battery.
- Operation: The mains-powered lamp operates during normal conditions, while the battery-powered lamp operates during power failures.
- Typical Uses: Areas where continuous lighting is essential, but a separate backup source is required during emergencies.
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