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Page | 032 BESS SAFETY STANDARDS
Product Functional Safety
• UL 1642 – Standard for Lithium Batteries (cell level certification)
• UL 1973 – Standard for Batteries for Use In Stationary Applications (module level certification)
• UL 9540 – Standard for Energy Storage Systems and Equipment (system level certification)
• UL 9540A – Test Method for Evaluating Thermal Runaway Fire Propagation in Battery ESS NEW
• UL 1741 – Standard for Inverters, Controllers, Converters, and Interconnection Equipment for DER
• UL 1998 – Standard for Software in Programmable Components
• UL 991 – Standard for Tests for Safety-Related Controls Employing Solid-State Devices
• IEC 62619 – Standard for Battery Safety in Stationary Applications
• + more
Electrical, Fire, and Safety Codes and Standards
For commercial applications: new code and standard requirements for ESS >20kWh
• NFPA 855 – Standard for the Installation of Stationary Energy Storage Systems (2020) location, separation, hazard detection, etc • NFPA 70 – NEC (2020), contains updated sections on batteries and energy storage systems
• International Fire Code 2018 and 2021 – Dedicated sections on energy storage, language is harmonized with NFPA 855
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