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  2. Arc-fault circuit interrupter - Wikipedia

    en.wikipedia.org/wiki/Arc-fault_circuit_interrupter

    The AFCI will open the circuit if dangerous arcing is detected. When installed as the first outlet on a branch circuit, AFCI receptacles provide series arc protection for the entire branch circuit. They also provide parallel arc protection for the branch circuit starting at the AFCI receptacle.

  3. NEMA connector - Wikipedia

    en.wikipedia.org/wiki/NEMA_connector

    A receptacle with a green dot is a so-called "hospital grade" device; The primary reason to use a hospital-grade receptacle at a patient bed location is to ensure that a receptacle with a greater contact tension is provided to minimize possibilities that an attachment plug supplying medical or life support equipment may be disconnected because ...

  4. Electrical wiring in North America - Wikipedia

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

    Arc-Fault Circuit Interrupter (AFCI) protection is required to protect nearly all finished areas of a home with the exception of bathrooms. This device, which can be a circuit breaker or the first outlet on a circuit, is designed to detect hazardous electrical arcing in the branch circuit wiring as well as in cords and plugs.

  5. National Electrical Code - Wikipedia

    en.wikipedia.org/wiki/National_Electrical_Code

    One GFCI receptacle can serve as protection for several downstream conventional receptacles. GFCI devices come in many configurations including circuit-breakers, portable devices and receptacles. Another safety device introduced with the 1999 code is the arc-fault circuit interrupter (AFCI). This device detects arcs from hot to neutral that can ...

  6. File:World map of electrical mains power plug types used.svg

    en.wikipedia.org/wiki/File:World_map_of...

    Guide to Electrical Equipment for Travelers/Plug adapters; Guide to Electrical Equipment for Travelers/Printable version; Usage on en.wikivoyage.org Electrical systems; Usage on eo.wikipedia.org Konektingo; Usage on es.wikipedia.org Enchufe; Anexo:Enchufes, voltajes y frecuencias por país; Usage on fa.wikipedia.org بزرگراه بروس

  7. Knob-and-tube wiring - Wikipedia

    en.wikipedia.org/wiki/Knob-and-tube_wiring

    When a generic power outlet was desired, the wiring could run directly into the junction box through a tube of protective loom and a ceramic bushing. Wiring devices such as light switches, receptacle outlets, and lamp sockets were either surface-mounted, suspended, or flush-mounted within walls and ceilings.

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  9. U.S. Military connector specifications - Wikipedia

    en.wikipedia.org/wiki/U.S._Military_connector...

    A MIL-DTL-38999 circular connector plated with a nickel–teflon composite. Left: plug (male) type connector; Right: receptacle (female) type connector) Electrical or fiber-optic connectors used by U.S. Department of Defense were originally developed in the 1930s for severe aeronautical and tactical service applications, and the Type "AN" series set the standard for modern military circular ...