very interesting experience as "intervenors support." Rescuers are sent to a shop fire in a commercial gallery. After ten minutes of attempted attacks by the Interior, the Commander decides to avail of our special vehicle, the H-4 ( description of major equipment here).
The gallery is mostly smoky and the public is still present. On our arrival, two attack crews are still inside the room (basement of 10m2 single large container part of the fabric), trying somehow to cope with the volume of heat-like a real oven! Why two teams were using it correctly their spear no information about it. Everything they were arrested at the entrance by the heat after going down some stairs ...
Our young chief rigging experienced (26 years, 10 years service) and operator "Haz -Mat "(equivalence RADCHIM 2), shall, after recognition under ARI, to propose to COS (seemingly helpless) extraction of hot gas through our fan "Turvex" and the exhaust ducts and a strong attack through our medium foam nozzle expansion (increasing the expansion of the emulsifier low expansion of 10% and also allowing the use of high-expansion foam) and several cans of foam concentrates low and high expansion.
We use a vent at the entrance to the store to inject the foam through the same hole later we will extract fumes remaining in the "Finalized" by the door-lance.
Being responsible for feeding foam, uneducated, I'm allowed to opt for low expansion foam to smother in the first place, home; so I first used the cans of foam concentrate and natural chemical and I could perceive that chemical type has 2 times more efficient. After a decline in the intensity of the home I used the foam to cool the high expansion volume. The extinction term between 15 to 20 minutes, using 200 liters of foam concentrate.
A breakdown of attack (simultaneous with extraction) will also be used in finalizing the pressure to stimulate the local casualty and extract the remaining hot gases.
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Bakan:)
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