The installation height of the emergency exit sign light, indicating that the marking emergency exit sign light should be installed on the wall a meters below, the exit sign shall be installed at the top of the door frame at the exit.
Fire-fighting channel refers to the fire personnel to carry out rescue and trapped personnel evacuation channels. For example, there are fire-fighting lights on staircases and corridors. The function of fire-fighting channel plays an important role in all kinds of dangerous situations, so we cannot despise the fire channel.