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  2. History of AC power plugs and sockets - Wikipedia

    en.wikipedia.org/wiki/History_of_AC_power_plugs...

    Harvey Hubbell had patented the parallel blade plug in 1913, and patented a polarized version in 1916. He also patented the T-slot single outlet in 1915, and a duplex T-slot outlet in 1916 both meant to take his older 1904 tandem and newer parallel plug design. (Single: U.S. patent 1,146,938; Duplex: U.S. patent 1,210,176). Prior to the 1930s ...

  3. AC power plugs and sockets - Wikipedia

    en.wikipedia.org/wiki/AC_power_plugs_and_sockets

    The devices are named using the format NEMA n-mmX, where n is an identifier for the configuration of pins and blades, mm is the maximum current rating, and X is either P for plug or R for receptacle. For example, NEMA 5-15R is a configuration type 5 receptacle supporting 15 A. Corresponding P and R versions are designed to be mated. Within the ...

  4. Three-prong adaptor - Wikipedia

    en.wikipedia.org/wiki/Three-prong_adaptor

    Cheater plugs were previously available with a short flexible grounding wire rather than a flat metal screw tab. This allowed use of the lower receptacle in a duplex outlet, which does not have a faceplate screw in the correct location for the screw tab. The grounding wire would be diverted around the adapter to reach the faceplate screw above it.

  5. NEMA connector - Wikipedia

    en.wikipedia.org/wiki/NEMA_connector

    Most duplex receptacles have metal tabs connecting the top and bottom receptacles. These tabs can be broken off to allow the top and bottom receptacles to be wired onto separate circuits. [44] This may allow for one switched receptacle for a lamp, or for two separate supply circuits when heavy loads are anticipated.

  6. AS/NZS 3112 - Wikipedia

    en.wikipedia.org/wiki/AS/NZS_3112

    Each switch or means of operating a switch, for a socket-outlet shall be (a) as close as practicable to the socket-outlet, and (b) marked to indicate the socket-outlet(s) or the connected electrical equipment that it controls, with the exception that marking is not required where the socket-outlet controlled is obvious because of the location ...

  7. Exclusive-Trump's team drawing up list of Pentagon officers ...

    www.aol.com/news/exclusive-trumps-team-drawing...

    The first source said that it would be difficult bureaucratically to fire and replace a large swath of senior U.S. military officials, suggesting the planning could be bluster and posturing by ...

  8. Schuko - Wikipedia

    en.wikipedia.org/wiki/Schuko

    Schuko sockets can accept two-pin unearthed Europlug (CEE 7/16) and CEE 7/17. Less safely, Schuko plugs can be inserted into many two-pin unearthed CEE 7/1 sockets and into some sockets with a different form of earth connection that will not mate with the earth contacts on the Schuko plug (e.g., some variants of the Danish socket).

  9. Give Your Cat a Pill Easily With This Vet-Approved Method - AOL

    www.aol.com/cat-pill-easily-vet-approved...

    If your cat has been prescribed capsules, this method is not going to work for you, and some cats will notice any change in their food and refuse to eat. Medications for cats, however, are ...

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