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  2. Eaton Corporation - Wikipedia

    en.wikipedia.org/wiki/Eaton_Corporation

    The company name changed once again in 1965 to Eaton Yale & Towne Inc. after the acquisition of Yale & Towne Manufacturing Co. in 1963. Stockholders approved the change to the company's current name in 1971. In 1978, Eaton Corporation acquired Samuel Moore & Company, Kenway Systems, and Cutler-Hammer. [5] [6] [citation needed]

  3. Surge protector - Wikipedia

    en.wikipedia.org/wiki/Surge_protector

    Surge Protection Device (SPD) for installation in a low-voltage distribution board. A surge protector (or spike suppressor, surge suppressor, surge diverter, [1] surge protection device (SPD), transient voltage suppressor (TVS) or transient voltage surge suppressor (TVSS)) is an appliance or device intended to protect electrical devices in alternating current (AC) circuits from voltage spikes ...

  4. MIL-S-901 - Wikipedia

    en.wikipedia.org/wiki/MIL-S-901

    There are four 'shots'. The first is placed on the fore-and-aft axis, 40 feet (12 m) from the barge. Shots 2, 3, and 4 are placed athwart ship at distances of 30, 25 and 20 feet (9.1, 7.6 and 6.1 m). The distance refers to the near side of the floating platform. [2]

  5. List of body armor performance standards - Wikipedia

    en.wikipedia.org/wiki/List_of_body_armor...

    If for example, the v 0 of an armor design is measured to be 1,600 ft/s (490 m/s) with a 9 mm FMJ bullet based on 30 shots, the test is only an estimate of the real v 0 of this armor. The problem is variability. If the v 0 is tested again with a second group of 30 shots on the same vest design, the result will not be identical.

  6. Standard penetration test - Wikipedia

    en.wikipedia.org/wiki/Standard_penetration_test

    The test uses a thick-walled sampling tube, with an outside diameter of 5.01 cm (2 in) and an inside diameter of 3.5 cm (1.375 in), and a length of at least 60 cm (24 in). The sampling tube is driven into the ground at the bottom of a borehole by blows from a hammer with a mass of 63.5 kg (140 lb) falling a distance of 75 cm (30 in). The sample ...

  7. Water Resistant mark - Wikipedia

    en.wikipedia.org/wiki/Water_Resistant_mark

    This is tested by two shocks (one on the 9 o'clock side, and one to the crystal and perpendicular to the face). The shock is usually delivered by a hard plastic hammer mounted as a pendulum, so as to deliver a measured amount of energy, specifically, a 3 kg hammer with an impact velocity of 4.43 m/s. The change in rate allowed is ±60 seconds/day.

  8. Measurement category - Wikipedia

    en.wikipedia.org/wiki/Measurement_category

    Schematic representation of measurement categories. Measurement category is a method of classification by the International Electrotechnical Commission (IEC) [1] of live electric circuits used in measurement and testing of installations and equipment, usually in the relation within a building (residential or industrial).

  9. Rating plate - Wikipedia

    en.wikipedia.org/wiki/Rating_plate

    A rating plate on a machine carries information about its operational limits. The plate frequently contains the names of the machine and its manufacturer, so the rating plate is often called a name plate (hence the term " nameplate capacity " for a generator), although many devices carry separate nameplates and rating plates.

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