UL 5085-2
Low Voltage Transformers - Part 2: General Purpose Transformers

DETAILS
Edition Number:1SCC Approved:--
Edition Date:2006-04-17DOD Approved: --
Price Code:DANSI Approved: 2012-11-30
Type:ulcsa

  • SCOPE

    1 Scope

    1.1 As noted in Low Voltage Transformers – Part 1: General Requirements, UL 5085-1, or CSA C22.2 No. 66.1,  Low Voltage Transformers – Part 1: General Requirements, the requirements of Part 2 cover:

    a)    Air-cooled transformers and reactors for general use;

    b)    Autotransformers;

    c)    Ferroresonant transformers;

    d)    Cord-connected transformers; and

    e)    Transformers incorporating overcurrent or over-temperature protective devices, transient voltage surge protectors, or capacitors.

    1.7 These requirements do not cover Class 2 and Class 3 transformers (which are evaluated in Part 3).

    1.8 Part 2 is intended to be used in conjunction with Part 1. The numbering of the clauses in Part 2 corresponds to the numbered clauses in Part 1. The requirements in Part 1 apply unless modified by Part 2.

  • TABLE OF CONTENTS
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    • Cover
    • Transmittal
    • UL Harmonized Standard Title Page
    • Table of Contents
      • PART 2: GENERAL PURPOSE TRANSFORMERS
        • 1 Scope
        • 5 Mechanical Assembly
        • 6 Enclosure
          • 6.5 Openings
        • 8 Connections
          • 8.1 General
          • 8.4 Pressure terminal connectors
          • 8.5 Leads
          • 8.6 Splice compartment
          • 8.7 Wiring compartment
          • 8.8 Wire bending space
          • 8.9 Receptacles
        • 11 Spacings and Insulation
          • 11.4 Insulation used in lieu of spacings
        • 13 Current-Carrying Parts
        • 14 Cord-Connected Transformers
        • 15 Strain Relief
        • 17 Markings
          • 17.1 General
          • 17.3 Environmental condition enclosures
          • 17.4 Details
          • 17.5 Wiring
        • 18 Tests
        • 21 Bonding Conductor Test
        • 26 Temperature (Heating) Test
        • 27 Voltage Measurement Test
        • 28 Impedance Test
        • 29 Dielectric Voltage-Withstand Test
          • 29.1 Applied potential
          • 29.2 Induced potential
        • 30 Overload Test
        • 31 Repeated Dielectric Voltage-Withstand Test
        • 32 Maximum Output Power and Short Circuit Tests for Line Cord-Connected Transformers
        • 33 Short Circuit Test on Transformers with Output Receptacles
        • 34 Maximum Output Power Test on Transformers with Output Receptacles
        • 35 Leakage Current Test
        • 36 Power Input Test
        • 37 Lifting or Mounting Means Test
        • 38 Strain Relief Test
    • Annex A (Informative)
    • Annex C (Informative)