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  2. List of railway electrification systems - Wikipedia

    en.wikipedia.org/wiki/List_of_railway...

    Light rail United States: Chicago: Metra Electric District: California: Sacramento Northern Railway: operated 1936–c. 1960s: Maryland: Purple Line: Light rail under construction Northern Indiana & Chicago: South Shore Line: Oregon: Southern Pacific Red Electric Lines: 1914–1929 Seattle: Central Link: Light rail

  3. Amtrak's 60 Hz traction power system - Wikipedia

    en.wikipedia.org/wiki/Amtrak's_60_Hz_Traction...

    Amtrak’s 60 Hz traction power system operates along the Northeast Corridor between New Haven, Connecticut, [note 1] and Boston, Massachusetts. This system was built by Amtrak in the late 1990s and supplies locomotives with power from an overhead catenary system at 25 kV alternating current with at 60 Hz, the standard frequency in North America.

  4. Wiring diagram - Wikipedia

    en.wikipedia.org/wiki/Wiring_diagram

    An automotive wiring diagram, showing useful information such as crimp connection locations and wire colors. These details may not be so easily found on a more schematic drawing. A wiring diagram is a simplified conventional pictorial representation of an electrical circuit. It shows the components of the circuit as simplified shapes, and the ...

  5. Railroad switch - Wikipedia

    en.wikipedia.org/wiki/Railroad_switch

    A right-hand railroad switch with point indicator pointing to right Animated diagram of a right-hand railroad switch. Rail track A divides into two: track B (the straight track) and track C (the diverging track); note that the green line represents direction of travel only, the black lines represent fixed portions of track, and the red lines depict the moving components.

  6. Electrical wiring in North America - Wikipedia

    en.wikipedia.org/wiki/Electrical_wiring_in_North...

    [citation needed] A common mnemonic electricians use to remember which wire goes to which terminal is "white to light…black to brass…green to green". [6] Phase wire in a circuit may be any color other than green, gray, or white (whether these are solid colors or stripes). The common colors are black, red, blue, brown, yellow, and orange ...

  7. Common rail (electricity) - Wikipedia

    en.wikipedia.org/wiki/Common_rail_(electricity)

    In electrical engineering, a common rail (shortened to COM) is a shared path between different electrical routes in an electrical circuit.For example, a device or circuit board might have a power rail or a ground rail, which components are attached to, so all the electrical charge flowing through different components is drawn from/collected into a single conductor line.

  8. Traction power network - Wikipedia

    en.wikipedia.org/wiki/Traction_power_network

    A traction network or traction power network is an electricity grid for the supply of electrified rail networks. The installation of a separate traction network generally is done only if the railway in question uses alternating current (AC) with a frequency lower than that of the national grid, such as in Germany , Austria and Switzerland .

  9. Signalling control - Wikipedia

    en.wikipedia.org/wiki/Signalling_control

    One control switch (OCS) A separate switch/button is provided for every signaled route. There will be as many switches/buttons per signal as there are routes (i.e. signaled destinations) from that signal. To set the desired route, the relevant switch or button is operated. All points within the route are automatically set to the required position.