UL 9540A-2018
UL Standard for Safety Test Method for Evaluating Thermal Runaway Fire Propagation in Battery Energy Storage Systems (Third Edition)

Standard No.

UL 9540A-2018

Release Date

2018

Published By

Underwriters Laboratories (UL)

Status

Be replaced 2018-11

Replace By

UL 9540A BULLETIN-2018

Latest

UL 9540A BULLETIN-2022

Scope

The test methodology in this document evaluates the fire characteristics of a battery energy storage system that undergoes thermal runaway. 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. Fire protection requirements not related to battery energy storage system equipment are covered by appropriate installation codes. a) The purpose of the tests included in this Test Method; b) Explanation of individual tests; and c) Interpretation and application of the results.

UL 9540A-2018 history

• 2022 UL 9540A BULLETIN-2022 UL Standard for Safety Test Method for Evaluating Thermal Runaway Fire Propagation in Battery Energy Storage Systems
• 2019 UL 9540A BULLETIN-2019 UL Standard for Safety Test Method for Evaluating Thermal Runaway Fire Propagation in Battery Energy Storage Systems (COMMENTS DUE: MAY 28@ 2019)
• 1970 UL 9540A-2019 UL Standard for Safety Test Method for Evaluating Thermal Runaway Fire Propagation in Battery Energy Storage Systems
• 2018 UL 9540A CRD-2018 UL Standard for Safety Test Method for Evaluating Thermal Runaway Fire Propagation in Battery Energy Storage Systems - Section / Paragraph Reference: 4.6A (new)@ 6.A (new)@ 6.1.1@ 6.2.2@ 6.2.2.1 (new)@ 6.2.4@ 6.2.6 Subject: Cell Testing Procedure Details
• 2018 UL 9540A BULLETIN-2018 UL Standard for Safety Test Method for Evaluating Thermal Runaway Fire Propagation in Battery Energy Storage Systems (COMMENTS DUE: DECEMBER 20@ 2018)
• 2018 UL 9540A-2018 UL Standard for Safety Test Method for Evaluating Thermal Runaway Fire Propagation in Battery Energy Storage Systems (Third Edition)
• 2017 UL 9540A-2017 UL Standard for Safety Test Method for Evaluating Thermal Runaway Fire Propagation in Battery Energy Storage Systems (First Edition)