UL 9540A
Test Method for Evaluating Thermal Runaway Fire Propagation in Battery Energy Storage Systems

DETAILS
Edition Number:3SCC Approved:--
Edition Date:2018-06-15DOD Approved: --
Price Code:AANSI Approved: --
Type:ulstd

  • SCOPE

    1 Scope

    1.1 The test methodology in this document evaluates the fire characteristics of a battery energy storage system that undergoes thermal runaway.

    1.2 The data generated will be used to determine the fire and explosion protection required for an installation of a battery energy storage system intended for installation, operation and maintenance in accordance with the International Fire Code (IFC), the Fire Code, NFPA 1, the National Electrical Code, NFPA 70, the National Electrical Safety Code (NESC), IEEE C2, other energy storage system codes, and the manufacturer’s installation instructions.

    1.3 Fire protection requirements not related to battery energy storage system equipment are covered by appropriate installation codes.

    1.4 See Figure 1.1 for a schematic of the test sequence in this document. See Appendix a which explains:

    a)    The purpose of the tests included in this Test Method;

    b)    Explanation of individual tests; and

    c)    Interpretation and application of the results.

    1.4 Figure 1.1Schematic of Test Sequence

    a See Section 6.

    b See Section 7.

    c See Section 8.

    d See Section 9.

  • TABLE OF CONTENTS
    Expand All

    • Cover
    • Transmittal
    • Table of Contents
      • Body
        • INTRODUCTION
          • 1 Scope
          • 2 Units of Measurement
          • 3 References
          • 4 Glossary
        • CONSTRUCTION
          • 5 General
            • 5.1 Cell
            • 5.2 Module
            • 5.3 Battery energy storage system unit
        • PERFORMANCE
          • 6 Cell Level
            • 6.1 Sample
            • 6.2 Determination of thermal runaway methodology
            • 6.3 Cell vent gas composition test
            • 6.4 Cell level test report
          • 7 Module Level
            • 7.1 Sample
            • 7.2 Test method
            • 7.3 Module level test report
          • 8 Unit Level
            • 8.1 Sample
            • 8.2 Test method
            • 8.3 Unit level test report
            • 8.4 Performance
          • 9 Installation Level
            • 9.1 General
            • 9.2 Sample
            • 9.3 Test method 1 – Effectiveness of sprinklers
            • 9.4 Installation level test report – Test method 1 – Effectiveness of sprinklers
            • 9.5 Performance – Test method 1 – Effectiveness of sprinklers
            • 9.6 Test method 2 – Effectiveness of fire protection plan
            • 9.7 Installation level test report – Test method 2 – Effectiveness of fire protection plan
            • 9.8 Performance – Test method 2 – Effectiveness of fire protection plan
    • APPENDIX A