AUTONOMOUS EMERGENCY LIGHTING SYSTEM OF ROAD TUNNEL

摘要

An autonomous emergency lighting system of a road tunnel comprises photoelectric transducers in series-parallel connected into photoelectric modules, a battery connected through a controller to each photoelectric module, light sources connected via an electronic photorelay with a photo detector to the battery. The photoelectric modules are installed on the side walls of the road tunnel at an obtuse angle to the direction of movement of cars and the photo detector of electronic photorelay is directed toward the main light.