From pv magazine ESS news place
Electrical standards provider UL Solutions has announced a new testing protocol that addresses fire organizations’ demand for improved evaluations of residential battery energy storage systems (BESS).
The UL 9540B research overview for large-scale fire testing for residential battery energy storage systems includes a test protocol with a robust ignition scenario and improved acceptance criteria. It addresses the fire propagation behavior of a BESS if a thermal propagation event occurs during the life of the system leading to an internal fire.
Since battery energy storage systems were first deployed a decade ago, UL Solutions has addressed associated fire safety issues by working with fire protection and battery experts, original equipment manufacturers, code authorities and other key stakeholders to evaluate test methods for of thermal flooding. fire propagation in BESS.
The organization previously developed the safety benchmarks for the energy storage industry: UL 9540, the Standard for Energy Storage Systems and Equipment, and UL 9540A, the Standard for Test Method for Evaluating Thermal Runaway Fire Propagation in Battery Energy Storage Systems.
The new UL 9540B is not intended to replace the previous standards, but rather works together with UL 9540 and UL 9540A “to provide a holistic approach to safety and fire behavior,” the organization said in an announcement last Friday.
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