UL 783
Standard for Electric Flashlights and Lanterns for Use in Hazardous (Classified) Locations

DETAILS
Edition Number:6SCC Approved:--
Edition Date:2003-04-28DOD Approved: 1983-12-13
Price Code:DANSI Approved: 2016-03-18
Type:ulstd

  • SCOPE

    1 Scope

    1.1 These requirements cover battery-operated flashlights and lanterns for use in hazardous locations, Class I, Division 1, Groups A, B, C and D; Class I, Division 2, Groups A, B, C, and D; Class II, Division 1, Groups F and G; and Class II, Division 2, Groups F and G as defined in the National Electrical Code, NFPA 70.

    1.2 These requirements apply to complete products with self-contained batteries, and include products consisting of a battery pack assembly and light assembly with interconnecting flexible cord.

    1.3 These requirements do not cover flashlights and lanterns of the explosion-proof type or other type of construction providing protection against ignition of flammable gas- or vapor-air atmospheres. Flashlights and lanterns that are intrinsically safe for Class I, Division 1 are covered by the Standard for Intrinsically Safe Apparatus and Associated Apparatus for Use in Class I, II, and III, Division 1, Hazardous (Classified) Locations, UL 913. Flashlights designed for Zones 0, 1, and 2 are covered by the Standards for Electrical Apparatus for Explosive Gas Atmospheres, UL 60079 series.

    1.4 These requirements cover equipment for use under the following atmospheric conditions:

    a)    A minimum ambient temperature of minus 25°C (minus 13°F);

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

    c)    A nominal barometric pressure of one atmosphere.

  • TABLE OF CONTENTS
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    • Cover
    • Transmittal
    • Table of Contents
    • UL Foreword
      • Body
        • PART 1 – GENERAL REQUIREMENTS
          • INTRODUCTION
          • 1 Scope
          • 2 General
          • 3 Units of Measurement
          • 4 Undated References
          • 5 Class I, Zone, and Group Equivalency
            • 5.1 Class I, Zone 1, Group IIA
            • 5.2 Class I, Zone 1, Group IIB
            • 5.3 Class I, Zone 1, Group IIC
            • 5.4 Class I, Zone 2, Group IIA
            • 5.5 Class I, Zone 2, Group IIB
            • 5.6 Class I, Zone 2, Group IIC
          • 6 Definitions
          • CONSTRUCTION
          • 7 Enclosure
          • 8 Protection Against Corrosion
          • 9 Cells and Batteries
          • 10 Internal Conductors
          • MARKING
          • 11 Details
        • PART II – DIVISION 1 FLASHLIGHTS WITH LAMP DISCONNECT MECHANISMS – SPECIFIC REQUIREMENTS
          • CONSTRUCTION
          • 12 Filament Disconnect Mechanism
          • PERFORMANCE
          • 13 Lamp Bulb Breakage Tests
          • 14 Spark Ignition Test
          • 15 Temperature Tests
          • 16 Test on Nonmetallic Filament Disconnect Mechanism
          • 17 Drop Test
        • PART III – DIVISION 1 FLASHLIGHTS WITHOUT LAMP DISCONNECT MECHANISMS – SPECIFIC REQUIREMENTS
          • CONSTRUCTION
          • 18 General
          • PERFORMANCE
          • 19 Spark-Ignition Test
          • 20 Temperature Tests
          • 21 Mechanical Tests
            • 21.1 General
            • 21.2 Impact Test
            • 21.3 30-Foot Drop Test
        • PART IV – FLASHLIGHTS AND LANTERNS FOR USE IN DIVISION 2 LOCATIONS – SPECIFIC REQUIREMENTS
          • CONSTRUCTION
          • 22 General
          • PERFORMANCE
          • 23 Spark-Ignition Test
          • 24 Temperature Test
          • 25 Drop Test
          • 26 Dust-Tight Enclosure Test
        • PART V – PERFORMANCE
          • TESTS
          • 27 Lamp Bulb Breakage Test
          • 28 Spark-Ignition Tests
            • 28.1 General
            • 28.2 Test Apparatus
            • 28.3 Gas Mixtures
            • 28.4 Verification of Spark Test Apparatus
          • 29 Test on Nonmetallic Filament Disconnect Mechanism
          • 30 Temperature Tests
          • 31 Grain Dust Temperature Test
          • 32 30-Foot Drop Test
          • 33 3-Foot Drop Test
          • 34 Impact Test
          • 35 Thermal Endurance to Heat
          • 36 Thermal Endurance to Cold
          • 37 Dust-Tight Enclosure Test (Atomized Water Spray)
          • 38 Battery Output Test