Fire Sprinkler Test Results

In both large-scale fire tests, the CUP commodity cartons were breached by the fire before initial sprinkler operation, resulting in persistent, deep-seated flames beyond the predicted time of battery involvement. At this time, the adequacy of ceiling level sprinkler protection cannot be established without repeating the large-scale fire sprinkler tests using bulk-packed Li-ion cells and/or battery packs. 

The 12-pallet classification test results consider the number of opened sprinklers, maximum steel beam temperature at the ceiling, maximum plume temperature and velocity, maximum heat flux, maximum weight loss rate, and net percentage weight loss. The classification of a given aerosol product is based upon suppression or control of the fire and the number of sprinklers that opened during the fire test. An aerosol product is considered a Level 1 if the fire was well controlled or suppressed, a Level 2 if the fire was well to marginally well controlled or a Level 3 if the fire was not well controlled. 

Test 15 a total of four sprinklers operated between 1 minute 38 s and 1 min 41 s after ignition. The overall fire spread was reduced compared to Test 14 however, persistent flames were observed throughout the test duration and thermocouple measurements within the commodity exceeded the evaluation criteria. A summary of the test results is provided in Table 4.1. 

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