MJ DTNS: a measuring train for the overhead line

25.10.2026

For Správa železnic, NDCon LOGIC is converting two passenger coaches into one diagnostic unit. The unit will measure the overhead line, the wire above the track that supplies electric trains with power.

What the unit measures

The unit will check the height of the contact wire, its stagger and its wear. A thermal camera is part of the equipment.

Two cars

The measuring car is rebuilt from an intermediate passenger coach. The control car, with the driver's cab, also becomes the place where the crew lives and works.

Where the cars come from

The starting point is passenger coaches of the Viaggio Comfort platform.

The measuring car

The biggest change is the roof. It will be lowered along most of the length of the car. A viewing cabin will sit in the middle of the roof. A measuring pantograph will be at one end of the car and a supply pantograph at the other. Cameras, laser units and a thermal camera will measure the wire.

Inside, the car gets new wiring, measuring and supporting technology and a generator set that powers the unit independently. The interior is new.

The control car

Only the interior behind the driver's cab changes. It will have five living compartments, a meeting room, a kitchenette, a bathroom and a WC.

Speed

Správa železnic requires the unit to keep a maximum operating speed of 230 km/h.