The trial took place in Hebei province, China, at an open site suitable for large-scale fire testing. It was conducted according to the latest international fire safety standards, including CSA/ANSI C800-2025, NFPA 855-2026, and UL 9540A (November 2025). The test went beyond standard requirements, with Trina Storage reducing the space between containers to just 10 centimetres, creating a more severe thermal challenge to assess system-level safety margins.
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During the test, the initiation container was exposed to flames in excess of 1,300°C to simulate an extreme fire scenario. The container remained structurally intact with no collapse. Cells in adjacent containers stayed well below critical safety limits, with no thermal propagation observed: cell temperatures peaked at 43.9°C in back-to-back containers, 23.9°C in side-by-side containers, and 28.6°C in face-to-face containers. These values are far below the cell venting points, exceeding UL 9540A acceptance criteria and outperforming typical industry benchmarks.The fire alarm in the initiation container continued to operate until power loss, confirming the robustness of the communication system under extreme conditions.
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Post-test inspections found that electrical cabinets in the initiation container were intact, with internal separation maintained by multi-layer isolation. Adjacent containers remained structurally sound and fully functional, while fire protection systems in these containers maintained 100 percent availability. Module-level thermal management systems also remained operational, and cell charge and discharge performance was unaffected, according to Gabriele Buccini, Head of Trina Storage Europe. (hcn)
