http://www.youtube.com/watch?v=-Uans40KdVI
LA county fire attack study UL
This video is along with the UL study about to be released. It considers flow path and how the introduction of air can increase the chances of flashover. Give this video the 7 minutes it deserves. Love the message in the video to go ahead and cool the upper atmosphere as you advance into the structure. You control the fire with water and not giving it oxygen, it goes out plain and simple.
Thoughts on this? http://www.vententersearch.com/supplemental/fairfaxradioreport.pdf
ReplyDeleteI have always used my coat pocket but I know alot of guys who use this strap. The issue for me is ability to change channels. We are phasing out the control on the collar mic so isf you carry the radio on the inside of your coat and have no collar controls you are limiting yourself. That being said I don"t know your radio setup. Let me know if this was helpful. Mike Heeney
DeleteWe watched this last shift and here are our thoughts:
ReplyDeleteFirst, the video is lacking in any consideration of ventilation. Some of my guys had a hard time getting past this.
I told them LAFD and LACFD are mostly vertical vent, and this video probably makes the assumption vertical has already been accomplished. However...he then ststes to "look for steam exiting the door" after extinguishment, and this indicates there is NOT vert vent in place.
Everything else in the video is right on. A good review of the science. Some great points he makes:
-Control the door, control the oxygen
-Tools, light at door
-Demonstrates responsibilities of the OTM (at AFD)
-Check for heat with a straight/solid stream
-Straight/solid flow into smoke above(this tactic is lacking at AFD)
-TIC
Couple of other things I brought up to my guys
1) An Engine is pretty well protected if:
a) a 360 tells you what's below or above you (combined with quick ceiling pull; b) ventilation accomplished; c) you don't get lost off the hoseline (like everyone in SAFD disorientation study; like all the Charleston FFs; like Brett Tarver); d) you're willing to flow into the atmosphere. Engines are pretty safe if all those are taken care of.
2) Simultaneous with an evacuation called for due to "imminent flashover conditions," opening the line (straight/solid)should be called for.
Cool, thanks for the site.
David
I wonder how realistic partially closing an inward swinging door is on a residential structure fire. I like to cool the upper atmosphere a little bit on the advance. Some folks really act like that's a cardinal sin, but can definitely assist and with good nozzle contral will cause minimal damage.
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