UL 1004-1
Standard for Rotating Electrical Machines - General Requirements

DETAILS
Edition Number:2SCC Approved:--
Edition Date:2012-09-19DOD Approved: --
Price Code:BANSI Approved: 2017-03-06
Type:ulstd

  • SCOPE

    1 Scope

    1.1 This Standard applies to form wound rotating electrical machines rated less than 460 volts and all other rotating electrical machines and linear motors, both AC and DC, rated 1,000 volts or less.

    1.2 This Standard is used to evaluate both motors intended to be field installed as well as those intended to be factory installed. Motors intended to be factory installed need not comply with the requirements in Section 12, Ventilation Openings; Section 13, Accessibility of Uninsulated Live Parts, Film-Coated Wire, and Moving Parts; 16.9 – 16.16, 16.28, 18.1 – 18.5, 33.1 – 33.3, 33.5 – 33.7, and 34.1.

    1.3 For the purposes of this Standard, the term “machine” is representative of and equivalent to the terms rotating electrical machine and rotating machine, and is understood to mean all manner of electric motors and generators covered by the scope of this Standard. The term “machine” is understood to apply to both AC and DC machines.

    1.4 These requirements do not cover machines intended for use in hazardous locations as defined in the National Electrical Code®, NFPA 70.

    The National Electrical Code® and NEC® are registered trademarks of the National Fire Protection Association, Inc., Quincy, MA 02169

    1.5 These requirements do not cover sealed (hermetic type) motor-compressor parts, which are evaluated under the Standard for Hermetic Refrigerant Motor-Compressors, UL 984.

    1.6 If the risk of fire does not exist at a machine, part, or circuit, then the requirements of this Standard and associated parts of this Standard, intended to address the risk of fire shall not apply to that machine, part, or circuit.

    1.7 If the risk of electric shock does not exist at a machine, part, or circuit, then the requirements of this Standard and associated parts of this Standard, intended to address the risk of electric shock shall not apply to that machine, part, or circuit.

    1.8 The requirements of this Standard and associated parts of this Standard, intended to address the risk of fire do not apply to a motor provided with a metal enclosure in which there are no openings in the enclosure through which molten metal, burning insulation, flaming particles, or other ignited material could fall onto flammable material, or through which a flame could be projected.

  • TABLE OF CONTENTS
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    • Cover
    • Transmittal
    • Table of Contents
      • Body
        • INTRODUCTION
          • 1 Scope
          • 2 Components
          • 3 Units of Measurement
          • 4 Undated References
          • 5 Glossary
        • CONSTRUCTION
          • 6 Current and Horsepower Relation
          • 7 Motors Provided With Controls
          • 8 Mechanical Assembly
          • 9 Frame and Enclosure
            • 9.1 General
            • 9.2 Cast metal enclosures
            • 9.3 Sheet metal enclosures
            • 9.4 Polymeric enclosures
          • 10 Grounding
          • 11 Grounding Identification
          • 12 Ventilation Openings
            • 12.1 General
            • 12.2 Barriers used with ventilation openings
          • 13 Accessibility of Uninsulated Live Parts, Film-Coated Wire, and Moving Parts
          • 14 Protection Against Corrosion
          • 15 Cord-Connected Motors
          • 16 Input and Output Connections
          • 17 Factory Wiring Terminals and Leads
          • 18 Spacings
          • 19 Current-Carrying Parts
          • 20 Internal Wiring
          • 21 Bonding for Grounding
            • 21.1 Bonding conductor
            • 21.2 Bonding and grounding connections
            • 21.3 Resilient elastomeric mountings
          • 22 Electrical Insulation
          • 23 Insulation Systems
          • 24 Windings
          • 25 Brush Holders
          • 26 Capacitors
          • 27 Switches
          • 28 Non-metallic Functional Parts
          • 29 Traction Motors
        • PERFORMANCE
          • 30 General
          • 31 Ratings Tests
            • 31.1 Generator output test
            • 31.2 Motor rating test
            • 31.3 Air-over motor rating test
          • 32 Temperature Test
          • 33 Mechanical Tests
            • 33.1 General
            • 33.2 Pressure test
            • 33.3 Impact test
            • 33.4 Mold stress relief
            • 33.5 Conduit hubs
            • 33.6 Rain test
            • 33.7 Lifting lugs
            • 33.8 Vibration test for traction motors
          • 34 Strain Relief Test
            • 34.1 Power-supply cord
            • 34.2 Interconnecting leads
            • 34.3 Clamps
          • 35 Push-Back Relief Test
          • 36 Resilient Elastomer Mounting Tests
            • 36.1 General
            • 36.2 Overcurrent test
            • 36.3 Humidity conditioning test
            • 36.4 Oven conditioning test
            • 36.5 Ozone conditioning
            • 36.6 Oil conditioning test
          • 37 Dielectric Voltage-Withstand Test
          • 37A Commutator Conditioning Test
          • 38 Limited Short Circuit Test
          • 39 Grounding Test
          • 40 Oil Compatibility Test
          • 41 Electrolytic Capacitor Overvoltage Test
          • 42 Locked Rotor Test for Non-metallic Functional Parts
            • 42.1 General
            • 42.2 Motors not provided with thermal motor protection
            • 42.3 Motors provided with thermal motor protection in the form of a thermal cutoff
            • 42.4 Impedance protected motors
            • 42.5 Motors provided with thermal motor protection in the form of an automatically reset thermal motor protector
            • 42.6 Motors provided with thermal motor protection in the form of an manually reset thermal motor protector, single-operation device, or a self-holding thermal motor protector
        • MANUFACTURING AND PRODUCTION TESTS
          • 43 Production-Line Dielectric Voltage-Withstand Test
        • MARKINGS
          • 44 General
          • 45 Legibility and Permanence
          • 46 Environmental Related Markings
        • INSTRUCTIONS
          • 47 General