Backdraft

Comment

Comment by MORIZOT Stéphane on December 4, 2008 at 5:56pm

Hi everybody,

Very interesting video and some remarks about the action :
1 Fire reading : building closed, "dweats" heat and smoke including white looking smoke getting outside which maight be pyrolysis gases,
2 Our brothers shouldn't stay in front of the door while trying to open it but should rather operate from the side to avoid the expansion cone,
3 They should have a hose line (at least a 45 mm line with a combination nozzle ready ta operate as soon as the door is opened,
4 smokes pushes outside with velocity, the smoke column is almost horizontal meaning very hot with a lot of energy,
5 With a line, cool the gases up then attack at maximum flow in the under level so that the fire sucks wet air then close the door (using a halligan for example),
6 re open the door and repeat the same procedure (always start attacking up in the smoke layer) at maximum flow to keep cooling the inside then close the door again,
7 keep repeating it untill fire decreases in energy,
8 In cas other crews are available on scene, they could try to create a vent on the upper part of the building but should stay on the ladder because the structure looks weak,
9 By adding those 2 techniques I think this operation could be handled
10 There is obviously no reason to have to get in to attack and cool this fire especially after a backdraft occured.

Take care and stay safe Bros