The stud contact system is an obsolete ground-level power supply system for electric trams. The studs were insulating, ceramic cylinders with their tops flush with the road surface, and a conductive, cast iron contact stud located in the top of the cylinder.
The stud contact system is an obsolete ground-level power supply system for electric trams. The studs were insulating, ceramic cylinders with their tops flush with the road surface, and a conductive, cast iron contact stud located in the top of the cylinder.
Source: Wikipedia "Stud contact system" · CC BY-SA 4.0
Share this article: X · Bluesky