UL 3730
Standard for Photovoltaic Junction Boxes

DETAILS
Edition Number:1SCC Approved:--
Edition Date:2014-11-11DOD Approved: --
Price Code:BANSI Approved: 2017-03-27
Type:ulstd

  • SCOPE

    1 Scope

    1.1 These requirements cover photovoltaic junction boxes intended to be attached to photovoltaic modules and panels.

    1.2 These requirements cover photovoltaic junction boxes intended for factory and field wiring and may include conduit openings, wiring leads, and/or photovoltaic connectors intended for interconnection of PV modules.

    1.3 The products covered by these requirements are intended to be installed in accordance with the National Electrical Code, ANSI/NFPA 70.

  • TABLE OF CONTENTS
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    • Cover
    • Transmittal
    • Table of Contents
      • Body
        • INTRODUCTION
          • 1 Scope
          • 2 General
            • 2.1 Components
            • 2.2 Units of measurement
            • 2.3 References
          • 3 Glossary
        • CONSTRUCTION
          • 4 Enclosure and Materials
            • 4.1 General
            • 4.2 Nonmetallic enclosures and polymeric materials
            • 4.3 Openings for wiring system connections
          • 5 Protection Against Corrosion
          • 6 Protection of Users - Accessibility of Uninsulated Live Parts
          • 7 Wiring Terminals
          • 8 Wiring Leads
          • 9 Field Wiring Compartments
          • 10 Grounding
          • 11 Internal Bonding for Grounding
          • 12 Internal Wiring
          • 13 Protection of Wiring
          • 14 Electrical Connections
          • 15 Live Parts
          • 16 Spacings
          • 17 Barriers
          • 18 Connectors
          • 19 Printed-Wiring Boards
        • PERFORMANCE
          • 20 General
          • 21 Temperature Test
          • 22 Dielectric Voltage-Withstand Test
          • 23 Leakage Current Test
          • 24 Mold Stress-Relief Distortion Test
          • 25 Strain Relief Test
          • 26 Crush Test
          • 27 Push Test
          • 28 Impact Test
          • 29 Terminal Torque Test
          • 30 Grounding Impedance Test
          • 31 Bonding Conductor Test
          • 32 Compression Test
          • 33 Gasket Tests
            • 33.1 General
            • 33.2 Alternate gasket tests
          • 34 Corrosive Atmosphere Test
            • 34.1 Salt spray test
            • 34.2 Moist carbon dioxide/sulphur dioxide test
          • 35 Metallic Coating Thickness Test
          • 36 Water Spray Test (Optional)
          • 37 Wet Insulation-Resistance Test (Optional)
          • 38 Temperature Cycling Test (Optional)
          • 39 Humidity Cycling Test (Optional)
        • RATING
          • 40 Details
        • MARKING
          • 41 Details
          • 42 Installation and Assembly Instructions
    • APPENDIX A