Issues related to the power connection of fire emergency lighting fixtures
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Our company currently has three types of power supply: N power (mains electricity), U power (UPS-powered electricity), and E power (emergency power from generators). I have a question for everyone: which type of power should be used for fire emergency lighting? 1. If connected to the N power supply, it will turn on automatically when the N power supply is disconnected. However, I’ve heard that building fire safety regulations require connection to the E power supply; I couldn’t find any explicit clause in the regulations stating that connection to the E power supply is mandatory. 2. If connected to E, the light tube will go out when N is disconnected! Since power from E will be supplied immediately, the emergency lighting fixtures remain in charging mode and will not light up! Therefore, the area will become completely dark! I would appreciate it if you could tell me what power source is used for fire emergency lighting fixtures~~~~
The two emergency lighting systems you mentioned are not the same at all. The fire emergency lighting referred to in the standards is such that when the mains power is disconnected, an emergency power supply is activated to supply power to the lighting system (at this point, the lighting system switches to being powered by the emergency generator, serving as fire emergency lighting). And by \"fire emergency lighting,\" you probably mean the emergency lights installed on the walls, which are connected to the mains power supply; they automatically turn on once the power is cut off, providing illumination for a certain period of time.
For the fire emergency lighting, we connect it to the power supply in the factory; I guess that’s what you mean by municipal electricity. It will turn on automatically in case of a power outage.
First, let’s talk about the working principle of emergency lights. As mentioned on the second floor, these lights are used in emergency situations. Under normal conditions, it is in charging mode; once there is a sudden power outage, it will automatically turn on to provide lighting for the production area.
Thank you for the guidance; I now understand~~ :loveliness: