Several requirements for emergency lighting fixtures
1) Illumination requirements
According to the CIE test results, people in When the illuminance is below 0.2LX, it is very easy to encounter obstacles. In the case of 0.5LX, it can barely avoid encountering obstacles. The higher the illuminance, the more confident people can move quickly and quickly. Generally speaking, it is not less than 10LX or normal lighting. 10% of the level is more satisfactory. In addition, due to the sudden disappearance of normal lighting, the illuminance has dropped a lot. It takes a period of time for human eyes to adapt and restore automatic confidence. Generally, CIE also stipulates that the lighting ratio is 40:1. , the evacuation illumination should be increased to between 5LX-11LX.
2) Time requirements:
Our current fire emergency lighting conversion lighting time is generally about 1 second, which generally meets the requirements. In order to help all personnel evacuate the scene, a specific period of time is required, which is generally determined according to different places. Generally, the emergency lighting time is more than 1.5 hours.
