APS says runaway thermal event caused 2019 battery explosion, outlines 4 steps to avoid a repeat

Utility Dive: The McMicken facility was equipped with a Novec 1230 “total flooding” clean-agent fire suppression system, designed to extinguish fires involving ordinary combustible materials.

3M, the developer of the Novec 1230 clean agent, publicly acknowledged in 2017, during the development of NFPA 855, that the product is inadequate to prevent the cascading thermal runaway of multiple battery cells.

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