"Emergency escape lighting can be" always maintained "or always" non-maintained ", and can only work when normal lighting fails. The operating time of the system or a single lighting unit (luminaire) is three times after the mains power fails. Within hours. In fact, the three-hour design is the most popular and can help maintain limited home use during periods of power outages (except emergency situations). "
The emergency light for maintenance usually has two lumen values (luminous flux, that is, the luminous flux from the light source) in its technical description: one value is the output when the main power supply is powered, and the other is the output when the main power is powered. The emergency light is powered by a backup battery. The latter usually account for about 10% of total output.
A maintained emergency light can usually be used as a switchable unit. This means that ordinary wall-mounted light switches can be used to switch between maintenance and non-maintenance operating modes. This is useful in areas that do not require continuous lighting, such as stairwells in high-rise apartment buildings, which require lighting only when someone is going up the stairs instead of taking the elevator. Of course, even if the power switch is in the "off" position, the emergency light will still be on in the event of a power failure. However, as mentioned above, the emergency light output will be about 90% lower than usual.
The disadvantage of unsustainable emergency lighting is that the condition of the lamp can only be determined through periodic testing. It is not good to wait for a power outage and find that it does not work. However, this problem can be solved by installing a self-test emergency light.
It is usually as maintenance-free as possible. This method is cheaper in terms of energy consumption and the life of accessories. However, in some places, such as theaters and movie theaters, lighting equipment must always be illuminated, that is, in maintenance mode, so sometimes there is no choice.
For emergency lighting in areas where high-intensity lighting is usually required, such as in corridors of office buildings, combined or permanent emergency luminaires can be installed. This type of unit contains two or more lights, at least one of which is powered by an emergency power source and the rest is powered by utility power. The power section of these lamps is usually controlled by a common light switch. Normally, all lights will be on under normal conditions, but if the power supply is interrupted, only the emergency lights will be on and battery powered.
Linsheng is one of the Emergency Light Manufacturers . We have a professional team and advanced machinery to manufacture emergency lights, which can meet the different needs of customers, and we can provide goods quickly. Welcome to consult and buy: https://www.linsheng.com
The emergency light for maintenance usually has two lumen values (luminous flux, that is, the luminous flux from the light source) in its technical description: one value is the output when the main power supply is powered, and the other is the output when the main power is powered. The emergency light is powered by a backup battery. The latter usually account for about 10% of total output.
A maintained emergency light can usually be used as a switchable unit. This means that ordinary wall-mounted light switches can be used to switch between maintenance and non-maintenance operating modes. This is useful in areas that do not require continuous lighting, such as stairwells in high-rise apartment buildings, which require lighting only when someone is going up the stairs instead of taking the elevator. Of course, even if the power switch is in the "off" position, the emergency light will still be on in the event of a power failure. However, as mentioned above, the emergency light output will be about 90% lower than usual.
The disadvantage of unsustainable emergency lighting is that the condition of the lamp can only be determined through periodic testing. It is not good to wait for a power outage and find that it does not work. However, this problem can be solved by installing a self-test emergency light.
It is usually as maintenance-free as possible. This method is cheaper in terms of energy consumption and the life of accessories. However, in some places, such as theaters and movie theaters, lighting equipment must always be illuminated, that is, in maintenance mode, so sometimes there is no choice.
For emergency lighting in areas where high-intensity lighting is usually required, such as in corridors of office buildings, combined or permanent emergency luminaires can be installed. This type of unit contains two or more lights, at least one of which is powered by an emergency power source and the rest is powered by utility power. The power section of these lamps is usually controlled by a common light switch. Normally, all lights will be on under normal conditions, but if the power supply is interrupted, only the emergency lights will be on and battery powered.
Linsheng is one of the Emergency Light Manufacturers . We have a professional team and advanced machinery to manufacture emergency lights, which can meet the different needs of customers, and we can provide goods quickly. Welcome to consult and buy: https://www.linsheng.com
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