Domestic emergency lighting in recent years have a g […]
Domestic emergency lighting in recent years have a greater development in the technical indicators have a corresponding improvement. The development of emergency lighting business also highlights the importance of human safety of their lives, the corresponding emergency lighting work has also been a wide range of concerns. So what is the working principle of emergency lighting?
Emergency lighting features
Emergency lighting with reliable work, high stability, low power consumption, high brightness, long life and other characteristics, the edge design of the power switch and refers to the lights, is widely installed in public places corridors, fire channel.
Emergency lighting classification
Emergency lighting is different from ordinary lighting, which includes: spare lighting, evacuation lighting, safety lighting three.
Standby lighting: An emergency lighting section to ensure that normal activities are continued when a normal lighting power failure occurs.
Evacuation lighting: In the event of a normal power failure, the emergency lighting section of the building can be easily and accurately found.
Safety lighting: An emergency lighting section to ensure the safety of personnel at risk in the event of a normal power failure.
Emergency working principle
First we analyze from the structure. Emergency light inside the two sets of power supply system, a set of internal battery to the power supply, a set of external power supply to the lights while the battery charge, the other power conversion mechanism, when the external power supply disconnected (power outage) , The line will switch to the battery power supply. This can be in the emergency lights when the power is turned off the emergency lights will remain illuminated.
Understand the emergency lighting power supply principle, in a brief understanding of the next working principle. Domestic use of emergency lighting system to own power independent control type, the normal power supply from the ordinary lighting power supply circuit, usually on the emergency light battery charging, when the normal power cut off, the backup power supply (battery) automatic power supply. This form of emergency lights each lamp has a transformer, voltage regulator, charge, inverter, battery and other large number of electronic components, emergency lights in the use, maintenance, failure, the battery charge and discharge. The other is centralized power centralized control type, emergency lights without independent power supply, the normal lighting power failure, by the centralized power supply system. In this form of emergency lighting system, all the internal electronic circuit is saved, the emergency lighting and ordinary lighting is no different, centralized power supply system set in a dedicated room.