Wall lamp installed in elevator shaft

The elevator supervision and inspection regulations stipulate that a shaft light should be installed every 7 meters. The national standard stipulates that lights should be installed within 0.5 meters of both ends.

Then, as long as there is lighting in the middle, it will be fine. For the well environment, it is only required that no other wires are allowed to be laid, and no steam pipes are allowed. There is no temperature requirement, only explosion-proof lighting should be set up in an explosion-proof environment.