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  2. Vacuum interrupter - Wikipedia

    en.wikipedia.org/wiki/Vacuum_interrupter

    As of 2018, a vacuum circuit-breaker had reached 145 kV with a short-circuit rating of 200 kA. [4] In 2019, a research team in China tested a vacuum high-voltage circuit-breaker with 12 interrupters, for a rated voltage of 363 kV and a short-circuit rating of 63 kA. [5]

  3. Vacuum breaker - Wikipedia

    en.wikipedia.org/wiki/Vacuum_breaker

    A vacuum breaker is a device that prevents water from being siphoned backward in a direction it is not desired to go. They are commonly placed on a bibcock valve or toilet or urinal flush valve, in which application they can prevent hose or drainage water from back-siphoning into the public drinking water system.

  4. Atmospheric vacuum breaker - Wikipedia

    en.wikipedia.org/wiki/Atmospheric_vacuum_breaker

    An Atmospheric Vacuum Breaker (AVB) is a backflow prevention device used in plumbing to prevent backflow of non-potable liquids into the drinking water system.. Diagram of Atmospheric Vacuum Breaker in both working states.

  5. Drain-waste-vent system - Wikipedia

    en.wikipedia.org/wiki/Drain-waste-vent_system

    The vent can also provide air to fill any vacuum created. The key to a functional island fixture vent is that the top elbow must be at least as high as the "flood level" (the peak possible drain water level in the sink), allowing it to serve as a de facto vacuum breaker preventing the loop from becoming a siphon for an overfilled sink, as from ...

  6. Atlas Copco - Wikipedia

    en.wikipedia.org/wiki/Atlas_Copco

    BeaconMedaes oxygen, vacuum, and medical air medical gas supply outlets on a ceiling at Campbell County Memorial Hospital in Gillette, Wyoming. The Atlas Copco Group has dozens of brands around the world, including Chicago Pneumatic for compressors and tools, Edwards for vacuums, BeaconMedeas for medical gas and SCA & Henrob for automotive ...

  7. Switchgear - Wikipedia

    en.wikipedia.org/wiki/Switchgear

    By the early 20th century, a switchgear line-up would be a metal-enclosed structure with electrically operated switching elements using oil circuit breakers. Today, oil-filled equipment has largely been replaced by air-blast, vacuum, or SF 6 equipment, allowing large currents and power levels to be safely controlled by automatic equipment.

  8. Police Abuse Complaints By Black Chicagoans Dismissed Nearly ...

    data.huffingtonpost.com/2015/12/chicago-officer...

    Long before Chicago police Officer Jason Van Dyke shot and killed a black teenager, sparking a public outcry and now a Justice Department probe into the city’s troubled police department, he had established a track record as one of Chicago’s most complained-about cops. Since 2001, civilians have lodged 20 complaints against Van Dyke. None ...

  9. Byron Nuclear Generating Station - Wikipedia

    en.wikipedia.org/wiki/Byron_Nuclear_Generating...

    The Byron Clean Energy Center is a nuclear power plant located in Ogle County, Illinois, 2 miles (3.2 km) east of the Rock River.The reactor buildings were constructed by Commonwealth Edison and house two Westinghouse Four-Loop [2] pressurized water reactors, Unit 1 and Unit 2, which began operation in September 1985 and August 1987 respectively.

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