UL 498A
Current Taps and Adapters

DETAILS
Edition Number:2SCC Approved:--
Edition Date:2008-01-23DOD Approved: --
Price Code:BANSI Approved: 2016-06-10
Type:ulstd

  • SCOPE

    1 Scope

    1.1 These requirements cover current taps and adapters for use in accordance with the National Electrical Code, ANSI/NFPA-70.

    1.2 These requirements do not cover current taps or adapters rated at more than 200 A or for more than 600 V. See 6.1.

    1.3 These requirements do not directly apply to current taps wired to flexible cord or lampholder adapters but supplement the applicable standards. Lampholder adapters are covered in the Standard for Lampholders, UL 496. Current taps wired to flexible cord are covered in the Standard for Attachment Plugs and Receptacles, UL 498.

    1.4 These requirements do not cover cord-connected, relocatable power taps intended only for indoor use as a temporary extension of a grounding, alternating-current branch circuit for general use, and which are covered by the Standard for Relocatable Power Taps, UL 1363.

    1.5 These requirements do not cover the current or voltage conversion circuitry capable of being used in travel adapters.

    1.6 As used in this Standard, the term device is intended to refer to both current taps and adapters unless specifically stated otherwise.

  • TABLE OF CONTENTS
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    • Cover
    • Transmittal
    • Table of Contents
      • Body
        • 1 Scope
        • 2 References
        • 3 Glossary
        • 4 Components
        • 5 Units of Measurement
        • 6 Ratings
        • 7 Markings
          • 7.1 Company name, catalog designation, electrical rating
          • 7.2 Multiple factories
          • 7.3 AC only devices
          • 7.4 Circuit limitations
          • 7.5 Disconnecting use only
          • 7.6 Adapters
          • 7.7 Travel adapters
          • 7.8 Devices with two sets of line blades
          • 7.9 Devices with supplementary overcurrent protection
          • 7.10 Devices employing a decorative feature
          • 7.11 Current taps intended for outdoor use
          • 7.12 Current tap with child-appealing or toy-like features
        • 8 Installation Instructions
          • 8.1 General
          • 8.2 Current taps
          • 8.3 Grounding adapters
          • 8.4 Travel adapters
          • 8.5 Current taps intended for outdoor use
          • 8.6 Adapters for dryer and range outlets
          • 8.7 Current tap with child-appealing or toy-like features
        • 9 General
        • 10 Insulating Materials
          • 10.1 General
          • 10.2 Flammability
          • 10.3 Electrical properties
          • 10.4 Thermal properties
          • 10.5 Vulcanized fiber
          • 10.6 Sealing compounds
          • 10.7 Fuse enclosures
        • 11 Enclosure
          • 11.1 General
          • 11.2 Male face size
          • 11.3 Noninterchangeability obstructions
          • 11.4 Female face size
          • 11.5 Enclosure size
        • 12 Current-Carrying Parts
          • 12.1 General
          • 12.2 Blades
          • 12.3 Contacts
        • 13 Grounding and Dead Metal Parts
          • 13.1 General
          • 13.2 Blades
          • 13.3 Contacts
        • 14 Spacings
        • 15 Assembly
          • 15.1 General
          • 15.2 Outlet separation
          • 15.3 Grounding and polarization
          • 15.4 Mating and interchangeability
          • 15.5 Fuseholders
          • 15.6 Supplementary circuitry
          • 15.7 Supplementary overcurrent protectors
        • 16 Adapters
        • 17 Travel Adapters
        • 17A Indoor or Outdoor or Indoor/Outdoor Current Taps that Employ Decorative Features
        • 17B Current Taps Employing Rotatable Outlets
        • 17C Current Taps Intended for Outdoor Use
        • 17D Current Tap with Child-Appealing or Toy-Like Features
          • 17D.1 Accessibility
          • 17D.2 Protection from electric shock
          • 17D.3 Enclosure of a current tap with child-appealing or toy-like features
          • 17D.4 Current tap with child-appealing or toy-like features - protection from personal injury
        • 18 Representative Devices
        • 19 Comparative Tracking Index Test
        • 20 Glow Wire Test
        • 21 High-Current Arc Resistance to Ignition Test
        • 22 Mold Stress Relief Test
        • 23 Moisture Absorption Resistance Test
        • 24 Dielectric Withstand Test
        • 25 Accelerated Aging Tests
          • 25.1 General
          • 25.2 Rubber, EPDM, and TEE compounds
          • 25.3 PVC compounds and copolymers
        • 26 Insulation Resistance Test
        • 27 Security of Blades Test
        • 28 Contact Security Test
        • 29 Retention of Plugs Test
        • 30 Overload Test
        • 31 Temperature Test
        • 31A Accessible Temperature Test
        • 32 Retention of Plugs Test (Repeated)
          • 32.1 General
          • 32.2 Plug retention
          • 32.3 Plug withdrawal
        • 33 Resistance to Arcing Test
        • 34 Fuseholder Temperature Test
        • 35 Improper Insertion Test
        • 35A Single-Pole Insertion Test
        • 36 Grounding Contact Tests
          • 36.1 General
          • 36.2 Conditioning
          • 36.3 Continuity
          • 36.4 Retention
        • 37 Supplementary Overcurrent Protector Temperature Test
        • 38 Obstruction Test
        • 39 Separation Test
        • 40 Circuit Condition Indication Test
        • 41 Leakage Current Test
        • 42 Rotational Endurance Test
        • 43 Resistance Test
        • 44 Fault Current
        • 45 Test Series for Current Taps Intended for Outdoor Use
    • APPENDIX A