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Door lock

The door on which this lock is installed can only be opened by inserting the key released from the previous safety device when it is in the safety position. This same key can then only be released from the door when the latter is closed. The door lock is the ultimate step of a cascade of safety locks installed all along the traction chain, from the pantograph down to the traction converters, enabling to finally access to the high voltage compartments in the safest conditions to carry out the maintenance work.

Earthing switches & safety philosophy
Brochures area
Secheron Door lock device
Earthing switches and safety philosophy leaflet
Earthing switches and safety philosophy