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SL2 bus at South Station. The Silver Line is a six-route bus rapid transit system marketed as rapid transit.It is divided into two branches: Waterfront service (SL1, SL2, SL3, and the rush-hour SLW shuttle) that runs through the South Boston Transitway tunnel, and Washington Street service (SL4 and SL5) that runs on the surface via Washington Street.
The busbar's material composition and cross-sectional size determine the maximum current it can safely carry. Busbars can have a cross-sectional area of as little as 10 square millimetres (0.016 sq in), but electrical substations may use metal tubes 50 millimetres (2.0 in) in diameter or more as busbars.
Boston-area streetcar lines remaining in 1940 (in green), plotted against a map of the BERy's subway and elevated lines (in purple). The shade of green for each line denotes how long the line lasted after this; the lightest-green lines were abandoned in 1945 or earlier, the second-lightest lines were abandoned from 1946 to 1950, the second-darkest lines were abandoned from 1951 to 1969, and ...
A bus coupler is a device which is used to couple one bus to the other without any interruption in power supply and without creating hazardous arcs. A bus coupler is a breaker used to couple two busbars to perform maintenance on other circuit breakers associated with that busbar. It is achieved with the help of a circuit breaker and isolators.
This route was a former "Montgomery Bus Lines" service acquired by the Red Arrow in 1936. Formerly labeled by Red Arrow as Routes "D (69th Street Terminal-Ardmore)" and "Y (Overbrook-Garett Hill)". Route D merged into Route Y on March 23, 1956. Route Y extended to Strafford at the same time replacing P&W Strafford Line service.
In electric power distribution, a bus duct (also called busway) typically uses sheet metal, welded metal [1] or cast resin to contain and isolate copper or aluminium busbars for the purpose of conducting a substantial current of electricity. It is an alternative means of conducting electricity to power cables or cable bus.
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