UL 1703
Standard for Flat-Plate Photovoltaic Modules and Panels

DETAILS
Edition Number:3SCC Approved:--
Edition Date:2002-03-15DOD Approved: --
Price Code:DANSI Approved: 2017-09-13
Type:ulstd

  • SCOPE

    1 Scope

    1.1 These requirements cover flat-plate photovoltaic modules and panels intended for installation on or integral with buildings, or to be freestanding (that is, not attached to buildings), in accordance with the National Electrical Code, NFPA 70, and Model Building Codes.

    1.2 These requirements cover modules and panels intended for use in systems with a maximum system voltage of 1500 V or less.

    1.3 These requirements also cover components intended to provide electrical connection to and mounting facilities for flat-plate photovoltaic modules and panels.

    1.4 These requirements do not cover:

    a)    Equipment intended to accept the electrical output from the array, such as power conditioning units (inverters) and batteries;

    b)    Any tracking mechanism;

    c)    Cell assemblies intended to operate under concentrated sunlight;

    d)    Optical concentrators; or

    e)    Combination photovoltaic-thermal modules or panels.

    1.5 Deleted October 1, 2003

  • TABLE OF CONTENTS
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    • Cover
    • Transmittal
    • Table of Contents
    • UL Foreword
      • Body
        • INTRODUCTION
          • 1 Scope
          • 2 Glossary
          • 3 Units of Measurement
          • 4 Components
          • 5 References
        • CONSTRUCTION
          • 6 General
          • 7 Polymeric Materials
          • 8 Current-Carrying Parts and Internal Wiring
          • 9 Wireways
          • 10 Connection Means
          • 11 Bonding and Grounding
          • 12 Spacings
          • 13 Wiring Compartments
            • 13.1 General
            • 13.2 Metallic wiring compartments
            • 13.3 Nonmetallic wiring compartments
          • 14 Corrosion Resistance
          • 15 Accessibility of Uninsulated Live Parts
          • 16 Fire Performance - PV Modules or Panels and Roofs
          • 17 Superstrate
        • PERFORMANCE
          • 18 General
          • 18A Thin-Film Modules
          • 19 Temperature Test
          • 20 Voltage, Current and Power Measurements Test
          • 21 Leakage Current Test
          • 22 Strain Relief Test
          • 23 Push Test
          • 24 Cut Test
          • 25 Bonding Path Resistance Test
          • 26 Dielectric Voltage-Withstand Test
          • 27 Wet Insulation-Resistance Test
          • 28 Reverse Current Overload Test
          • 29 Terminal Torque Test
          • 30 Impact Test
          • 31 Fire Tests
            • 31.1 Type tests for fire performance characterization of modules and panels independent of roof coverings
            • 31.2 System Fire Class Rating of module or panel with mounting systems in combination with roof coverings
          • 32 General
          • 33 Water Spray Test
          • 34 Accelerated Aging Test
          • 35 Temperature Cycling Test
          • 36 Humidity Test
          • 37 Corrosive Atmosphere Test
            • 37.1 Salt spray test
            • 37.2 Moist carbon dioxide/sulphur dioxide
          • 38 Metallic Coating Thickness Test
          • 39 Hot-Spot Endurance Test
            • 39.1 General
            • 39.2 Cell selection and instrumentation
            • 39.3 Intrusive method
            • 39.4 Nonintrusive method
            • 39.5 Theory and method of cell selection
            • 39.6 Selection of hot-spot test level
            • 39.7 Type A cells (high shunt resistance)
            • 39.8 Type B cells (low shunt resistance)
            • 39.9 Test execution
          • 40 Arcing Test
            • 40.1 General
            • 40.2 Method A
            • 40.3 Method B
            • 40.4 Methods A and B
            • 40.5 Method C
            • 40.6 All methods
          • 41 Mechanical Loading Test
          • 42 Wiring Compartment Securement Test
          • 42A Cemented Joints
            • 42A.1 General
            • 42A.2 Material tests
            • 42A.3 UV weathering resistance
        • PRODUCTION LINE TESTS
          • 43 Factory Dielectric Voltage-Withstand Test and Factory Wet Insulation-Resistance Test
            • 43.1 General
            • 43.2 Factory Dielectric Voltage-Withstand Test
            • 43.3 Factory Wet Insulation-Resistance Test
          • 44 Factory Voltage, Current, and Power Measurements Test
          • 45 Grounding Continuity Test
        • RATING
          • 46 Details
        • MARKING
          • 47 Details
          • 48 Installation and Assembly Instructions
    • SAMPLE PRODUCTION LINE TESTS
    • APPENDIX A
    • APPENDIX B
    • Superseded List