OVERHEAD LINE

A full survey of overhead lines can be carried out at speeds up to 160 km/h using EURAILSCOUT’s measurement trains. The various trains are equipped with innovative measurement and diagnosis technologies for many aspects of an overhead line inspection.

Measuring and Inspection Systems
Non-contact laser systems scan the height and horizontal position up to four contact wires, with automatic corrections for the rolling motion of the carriage body, which is measured separately.

Hit detection/incidents and incoming wires
EURAILSCOUT has a measurement system for hit detection and horn contact detection of the contact wire at the pantograph. They are combined into a system called “ConForM1”. Horn contact sensors detect the range of outgoing and incoming wires. Hit detection sensors detect incidents in the catenary system. 

Contact force and acceleration measurement
EURAILSCOUT has a system for measurement of contact force between contact wire and pantograph. The system called “ConForM2”. The measurement system measures the vertical contact force between the pantograph and the contact wire and accelerations at the pantograph head. Horn contact sensors detect the range of outgoing and incoming wires.

Contact wire thickness measurement
Cameras make a continuous, non-contact survey of the contact wire to assess wire wear. The pictures are used to evaluate the width of the wearing surface and are stored separately to the measurement results.

Position of mast poles
The position of the mast poles along the tracks is recognised automatically by laser-based systems and stored with the measuring and inspection data. The positions are shown in the results of the measurement data.

Video survey
The visual recording of the overhead line system is done with area and line scan camera’s. Every 1.5m a high resolution image is taken. During nighttime, infrared illumination images are recorded.