UL 1973
Standard for Batteries for Use in Light Electric Rail (LER) Applications and Stationary Applications

DETAILS
Edition Number:1SCC Approved:--
Edition Date:2013-02-15DOD Approved: --
Price Code:BANSI Approved: 2016-06-01
Type:ulstd

  • SCOPE

    1 Scope

    1.1 These requirements cover electric energy storage systems as defined by this standard for use as energy storage for stationary applications such as for PV, wind turbine storage or for UPS, etc. applications. These systems are to be installed in accordance with the National Electric Code, ANSI/NFPA 70 or other applicable installation codes.

    1.2 These requirements also cover electric energy storage systems (EESS) as defined by this standard for use in light electric rail (LER) applications and stationary rail applications such as rail substations. These systems are intended for installation within either the rail car or within a sheltered stationary location such as a rail substation. These electric energy storage systems may utilize regenerative braking from the trains as a source of energy for recharging and are intended for direct or indirect connection to the rail power lines. These electric energy storage systems are intended for balancing loads during peak hours, serving as an energy storage device during regenerative breaking of the trains, and as a source of emergency power to move trains to the nearest station during power outages.

    1.3 Appendix b of this standard includes requirements specific to sodium-beta type technologies. Appendix c of this standard includes requirements specific to flowing electrolyte technologies.

    1.4 This standard evaluates the electric energy storage system's ability to safely withstand simulated abuse conditions. This standard evaluates the system based upon the manufacturer's specified charge and discharge parameters.

    1.5 This standard does not evaluate the performance (i.e. capacity measurements under various discharge conditions) or reliability (i.e. capacity measurements under various environmental conditions) of these devices.

    1.6 Figure 1.1 is a boundary diagram example for an electric energy storage system for this application. Figure 1.2 is a boundary diagram example for a module for this application.

    1.6 Figure 1.1Components of an electric energy storage system

    1.6 Figure 1.2Module – boundary diagram

  • TABLE OF CONTENTS
    Expand All

    • Cover
    • Transmittal
    • Table of Contents
      • Body
        • INTRODUCTION
          • 1 Scope
          • 2 Units of Measurement
          • 3 References and Components
          • 4 Glossary
        • CONSTRUCTION
          • 5 General
            • 5.1 Non-metallic materials
            • 5.2 Metallic parts resistance to corrosion
            • 5.3 Enclosures
            • 5.4 Wiring and terminals
            • 5.5 Spacings and separation of circuits
            • 5.6 Insulation levels and protective grounding and bonding
            • 5.7 System safety analysis
            • 5.8 Protective circuit and controls
            • 5.9 Cooling/thermal management system
            • 5.10 Electrolyte containment parts and parts subject to pressure
            • 5.11 Cells (battery and electrochemical capacitor)
        • PERFORMANCE
          • Sub-Section
          • 6 General
          • 7 Determination of Potential for Fire Hazard
          • 8 Important Test Considerations
          • 9 Single Fault Conditions
          • 10 Test Results
          • 11 Determination of Toxic Emissions
          • 12 Measurement Equipment Accuracy
          • ELECTRICAL TESTS
          • 13 Overcharge Test
          • 14 Short Circuit Test
          • 15 Overdischarge Protection Test
          • 16 Temperature and Operating Limits Check Test
          • 17 Imbalanced Charging Test
          • 18 Dielectric Voltage Withstand Test
          • 19 Continuity Test
          • 20 Failure of Cooling/Thermal Stability System
          • 21 Working Voltage Measurements
          • 22 Tests on Electrical Components
            • 22.1 Locked-rotor test for low voltage dc fans/motors in secondary circuits
            • 22.2 Input
            • 22.3 Leakage current
            • 22.4 Strain relief test
            • 22.5 Push-back relief test
          • MECHANICAL TESTS
          • 23 Vibration Test (LER Motive Applications)
          • 24 Shock Test (LER Motive Applications)
          • 25 Crush Test (LER Motive Applications)
          • 26 Static Force Test
          • 27 Impact Test
          • 28 Drop Impact Test
          • 29 Wall Mount Fixture/Handle Test
          • 30 Mold Stress Test
          • 31 Pressure Release Test
          • 32 Start-To-Discharge Test
          • ENVIRONMENTAL TESTS
          • 33 Thermal Cycling Test (LER Motive Applications)
          • 34 Resistance to Moisture Test
          • 35 Salt Fog Test
          • 36 External Fire Exposure Test
          • 37 Internal Fire Exposure Test
        • MARKINGS
          • 38 General
        • INSTRUCTIONS
          • 39 General
        • MANUFACTURING AND PRODUCTION LINE TESTS
          • 40 General
    • Appendix A
    • Appendix B
    • APPENDIX C
    • APPENDIX D
    • APPENDIX E