Action Localized fire exposure continues No Burner Operation Minimum temperature 1-minute rolling average Not specified greater than 600 oC Maximum 1-minute rolling average 3-10 temperature less than 900 oC Minutes Not specified Action Main Burner Ignited at 10 Increase temperature minutes Minimum Temperature 1-minute rolling average Not specified greater than 600 oC Maximum 1-minute rolling average 10-11 temperature less than 1,100 oC Minutes Less than 1,100 oC Action Increase temperature and stabilize fire for start of Increase temperature and engulfing fire exposure stabilize fire for start of engulfing fire exposure Minimum 1-minute rolling average temperature greater than 600 oC Greater than 300 oC 1 minute rolling average Maximum 11-12 temperature less than 1,100 oC Minutes Less than 1,100 oC Action Engulfing fire exposure Engulfing fire exposure continues continues Minimum temperature 1-minute rolling average 1-minute rolling average greater than 800 oC Greater than 800 oC 12 Maximum 1 minute rolling average 1-minute rolling average Minutes - temperature less than 1,100 oC end of test less than 1,100 oC (d) Documenting results of the fire test The arrangement of the fire is recorded in sufficient detail to ensure the rate of heat input to the test article is reproducible. The results include the elapsed time from ignition of the fire to the start of venting through the TPRD(s), and the maximum pressure and time of evacuation until a pressure of less than 1 MPa is reached. Thermocouple temperatures and container pressure are recorded at intervals of every 10 sec or less during the test. Any failure to maintain specified minimum temperature requirements based on the rolling averages invalidates the test result. Any failure to maintain specified maximum temperature requirements based on the 1-minute rolling averages invalidates the test result only if the test article failed during the test. 5.2. Engulfing fire test: The test unit is the compressed hydrogen storage system. The storage system is filled with compressed hydrogen gas at 100 per cent NWP (+2/-0 MPa). The container is positioned horizontally with the container bottom
Action Minimum temperature Maximum temperature Localized fire exposure continues 1-minute rolling average greater than 600 oC 1-minute rolling average less than 900 oC 3-10 Minutes No Burner Operation Not specified Not specified Action Minimum Temperature Maximum temperature Increase temperature 1-minute rolling average greater than 600 oC 1-minute rolling average less than 1,100 oC 10-11 Minutes Main Burner Ignited at 10 minutes Not specified Less than 1,100 oC Action Minimum temperature Maximum temperature Increase temperature and stabilize fire for start of engulfing fire exposure 1-minute rolling average greater than 600 oC 1 minute rolling average less than 1,100 oC 11-12 Minutes Increase temperature and stabilize fire for start of engulfing fire exposure Greater than 300 oC Less than 1,100 oC Action Minimum temperature Maximum temperature Engulfing fire exposure continues 1-minute rolling average greater than 800 oC 1 minute rolling average less than 1,100 oC 12 Minutes - end of test Engulfing fire exposure continues 1-minute rolling average Greater than 800 oC 1-minute rolling average less than 1,100 oC (d) Documenting results of the fire test The arrangement of the fire is recorded in sufficient detail to ensure the rate of heat input to the test article is reproducible. The results include the elapsed time from ignition of the fire to the start of venting through the TPRD(s), and the maximum pressure and time of evacuation until a pressure of less than 1 MPa is reached. Thermocouple temperatures and container pressure are recorded at intervals of every 10 sec or less during the test. Any failure to maintain specified minimum temperature requirements based on the rolling averages invalidates the test result. Any failure to maintain specified maximum temperature requirements based on the 1-minute rolling averages invalidates the test result only if the test article failed during the test. 5.2. Engulfing fire test: The test unit is the compressed hydrogen storage system. The storage system is filled with compressed hydrogen gas at 100 per cent NWP (+2/-0 MPa). The container is positioned horizontally with the container bottom
ECE-TRANS-WP29-2018-068e.docx