Test 1 is the free burn case where no suppression was applied. In this case, smoke was observed to release at about 3.5 min after heating started, and the flame started at about 10 min. The explosion and fire continued for about 8 min before the battery pack burnout. During the test, it was. .
Test 3 is a fire suppression case with type D dry chemical. In this case, the battery fire started at about 10.5 min after heating. The suppressant was. .
Test 4 is a free burn of a large battery pack (24V), test 5 is a water mist suppression case of the large battery pack (24V) fire with 3 GPM flow rate, and test 6 is the. .
Different flow rates of water mist suppression were also used to study their impact on the small battery pack fire. Test 7 used water mist at 1 GPM, test 8 used. [pdf]
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