Difference Between Maintained And Sustained Emergency Lights

A non maintained emergency light will only illuminate when there is a power cut.

Difference between maintained and sustained emergency lights.

This will be a dedicated emergency light and cannot be used for normal room lighting. Over their lifespan non maintained emergency lights will still consume less energy though. A common question from customers buying emergency lighting is. Maintained lights are always on and as such naturally use more power.

Just like a normal luminaire when running ordinarily they will take power from the mains supply but when they switch to emergency mode they take power from a back up battery. Non maintained lighting is preferred in these instances because it is not wasting power in normal situations. Luckily the answer is really quite simple. When looking for the emergency lighting fitting you require you are likely to come across the terms maintained and non maintained.

This is a luminaire in which the emergency lamps are lit all the time. A normal light with all the other lights in the area from the mains supply however when the power fails the maintained emergency fitting will continue to operate but at a lower light level using the back up rechargeable batteries. What is the difference between maintained and non maintained emergency lighting. Maintained mode is generally employed in places of assembly such as theatres cinemas clubs etc.

These phrases are terminology usually associated with emergency lighting products but what is the difference. What about sustained combined lights. Non maintained luminaries should be used in areas where the building is normally lit via another lighting source but relies on a non maintained emergency light in an emergency situation. A short video explaining the difference between maintained non maintained and switchable maintained emergency lighting.

Maintained emergency lighting luminaires are built to be active continuously in every day life and through the event of a power cut. The lights are typically dimmed when the premises are occupied and the emergency escape lighting prevents total darkness. However even non maintained lights do require a constant trickle charge from the mains power to maintain the backup battery. The x dsa is a mini non maintained emergency light that will only come on in a mains failure.