Power Supply Switches
Before a tram can be operated the main electrical circuit must be closed. This is done by the motorman moving a large overhead switch, usually located on the bulkhead behind the driving position, from the "off" to the "on" position.
Trams fitted with air brakes have a separate switch to operate the air compressor. This is sometimes located near the compressor (which is normally located under the floor of the passenger compartment) rather than in the driver's cabins.
Read more about this topic: Tram Controls
Famous quotes containing the words power, supply and/or switches:
“The triumphs of peace have been in some proximity to war. Whilst the hand was still familiar with the sword-hilt, whilst the habits of the camp were still visible in the port and complexion of the gentleman, his intellectual power culminated; the compression and tension of these stern conditions is a training for the finest and softest arts, and can rarely be compensated in tranquil times, except by some analogous vigor drawn from occupations as hardy as war.”
—Ralph Waldo Emerson (1803–1882)
“With girls, everything looks great on the surface. But beware of drawers that won’t open. They contain a three-month supply of dirty underwear, unwashed hose, and rubber bands with blobs of hair in them.”
—Erma Bombeck (20th century)
“I find television very educational. Every time someone switches it on I go into another room and read a good book.”
—Groucho Marx (1895–1977)