An overhead line is the wire that feeds current to electric trains. Repair the overhead line.
It is held at a tension that changes with temperature, which is why heat causes delays. An overhead line zigzags above the track so the collector wears evenly across.
1nounoverhead lineThe wire that feeds current to electric trains.
“The overhead line came down and closed the route for a day.”
overhead line is a wire.
Also accepted in games: catenary
Practised in Railways