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Diameter inspection of overhead lines

Especially in the case of high-speed railway lines, preventive inspection of the overhead lines is important in order to ensure that the lines are passable. optoCONTROL laser micrometers are used to enable reliable wear inspection. These are installed on a maintenance locomotive and are guided over a frame to the overhead line during the journey, where the laser micrometers measure the diameter The wear is determined from the difference between the diameter and the nominal value.