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UL 844:2021

UL 844:2021

$139.75

Standard for Luminaires for Use in Hazardous (Classified) Locations

Published By Publication Date Number of Pages
UL 2021-10-11 96
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1 Scope

1.1 These requirements cover fixed and portable luminaires for installation and use in hazardous (classified) locations, Class I, Divisions 1 and 2, Groups A, B, C, and D; Class II, Division 1, Groups E, F, and G; Class II, Division 2, Groups F and G; and Class III, Divisions 1 and 2, in accordance with the National Electrical Code, NFPA 70.

1.2 These requirements also cover luminaires for installation and use in Class I, Zones 1 and 2, Groups IIA, IIB, IIB plus Hydrogen, and IIC, and Zone 20, 21 and 22 hazardous (classified) locations in accordance with the National Electrical Code, NFPA 70.

1.3 These requirements cover luminaires for use only under the following atmospheric conditions:

  1. a) A minimum ambient temperature of minus 60°C (minus 58°F);

  2. b) An oxygen concentration not greater than 21 percent by volume; and

  3. c) A nominal barometric pressure of one atmosphere.

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UL 844:2021
$139.75