Fire emergency lights are closely related in our lives. So how do we confirm the light intensity of fire emergency lights?

How can we confirm the illumination intensity of the terminal lighting: The index that weighs the luminous intensity is the luminous flux. Luminous flux is only the radiant energy that the eye can feel. It is equivalent to the radiant energy of some bands in the enterprise time and the product of the band depending on the visibility. Luminous flux companies are lumens, abbreviated as lm. The illuminance can be measured simultaneously using an illuminometer. The company of illuminance is lux, and it can also be written as lx. An object that is uniformly illuminated by light, when the luminous flux obtained on an area of one square meter is 1 lumen, its illumination intensity is 1 lux.

In the specific installation and application process, the light intensity of the fire emergency lighting fixtures in the building shall be in accordance with the following specifications in Article 11.3.2 of the “Code for Fire Protection of Building Design” of GB50016-2006:

1. The ground level of the fire evacuation walkway should not be lower than 0.5Lx;

2. The lower level of light intensity on the ground in densely populated places should not be lower than 1Lx;

3. The lower horizontal light intensity of the ground of the evacuation stairs should not be less than 5Lx;

4. Fire emergency control room, fire pump room, self-supplied generator room, power distribution room, smoke prevention and exhaust fan room, and fire emergency lighting of other rooms that still need to operate normally in case of fire, should still guarantee normal lighting Illumination.