Stud contact system
id:
stud-contact-system-213-2830115
title:
Stud contact system
text:
The stud contact system is an obsolete ground-level power supply system for electric trams. Power supply studs were set in the road at intervals and connected to a buried electric cable by switches operated by magnets on the tramcars. Current was collected from the studs by a "skate" or "ski collector" under the tramcar. The system was popular for a while in the early 1900s but soon fell out of favour because of the unreliability of the magnetic switches, largely due to friction and rapid corros
brand slug:
wiki
category slug:
encyclopedia
description:
original url:
https://en.wikipedia.org/wiki/Stud_contact_system
date created:
2007-08-12T09:01:20Z
date modified:
2024-09-12T09:09:38Z
main entity:
{"identifier":"Q7627515","url":"https://www.wikidata.org/entity/Q7627515"}
image:
fields total:
13
integrity:
14