1. Function of emergency evacuation indicator light (emergency exit indicator light): Emergency exit indicator light is the indicator light for people to lead to a safe area, so it is an important measure to prevent group casualties to ensure the smooth exit.

2. Function of emergency evacuation lighting: In case of emergency, such as earthquake, fire or circuit failure, when the power supply is suddenly interrupted, all light sources stop working. At this time, reliable lighting must be provided immediately, and the evacuation direction and the location of emergency exits should be marked to ensure the smooth evacuation of people trapped in the dark.

Second, the overview of the two is different:

1. Overview of emergency evacuation indicator light: Emergency exits are escape exits in various public places, and emergency exits are important safety facilities in crowded places. In the event of a safety accident, all personnel in crowded places quickly escape from the scene of the accident mainly through various safety exits, and rescuers also enter the scene of the accident mainly through safety exits to rescue trapped people or save property.

2. Overview of emergency evacuation lighting: Emergency lighting is a kind of lighting that can effectively illuminate and display evacuation passages, or can continuously illuminate and work in case of power failure in normal lighting. Widely used in public places and places where lighting cannot be interrupted.

Third, the relevant requirements of the two are different:

1, emergency evacuation indicator related requirements:

(1) Fire emergency lights and safety evacuation indicator lights must be equipped with two power sources, namely normal power source and emergency standby power source. Emergency standby power supply is generally supplied by self-provided power generation and storage battery. If the battery is used, its continuous power supply time should not be less than 200 minutes.

(2) The illumination of fire emergency lighting and safety evacuation signs should not be less than 0.5lx, so as to fully illuminate the evacuation passages such as walkways and stairs. The fire control room, fire pump room, self-provided generator room and the parts that still need to work in case of fire must also ensure the illumination of normal lighting.

(3) Safety evacuation signs should be located at the top of the emergency exit or on the wall below the ground 1m at the evacuation walkway and its corner, and the distance between signs on the walkway should not be more than 20m. Fire emergency lighting and safety evacuation indicator lamps shall be equipped with protective covers made of glass and other incombustible materials.

(4) Clear signs should be set up in the evacuation stairwell, indicating the location and number of floors, so that people in the building can know their positions in time, which is conducive to safe evacuation.

2, emergency evacuation lighting related requirements:

(1) adopts high-quality ultra-bright LED to emit light, with a surface brightness of ≧ 15cd/㎡, uniform and soft, and strong penetration.

(2) The emergency switching time is ≤0.2S, and it has perfect overcharge and overdischarge protection function.

(3) Select the top maintenance-free nickel-cadmium battery pack, and the emergency time is ≧90min.

(4) In order to ensure a long enough emergency time, please charge for more than 24 hours before use.

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