System for protecting gantry for transporting material and person to tower of wind energy plant, has cable pull switch that is provided in traction cable for interruption of power supply to electrical drive unit

摘要

The system has a fixed ladder (1) and an electrical drive unit for moving a movable cabin used for transporting passenger and material. A guided traction rope (4) is provided in parallel to ladder. A cable pull switch (6) is provided in traction cable as a signal generator for interruption of power supply to the electrical drive unit.