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May 06, 2024
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About This Presentation
Road Safety
Size: 9.77 MB
Language: en
Added: May 06, 2024
Slides: 101 pages
Slide Content
1. The set rules of vehicle fire
fighting
2. The tools of good decision
making
If you see open flames upon
arrival that vehicle is already
A Total Loss
What Defines A Total Loss ?
m In earlier cars a total loss was determined by
the repait cost, as compared to the resale
value of the vehicle.
= Today's vehicles are all together different.
u In an effort to meet NHTSA’s crash safety
standards, manufacturers have redesigned
their frames and supports to bend in precise
locations to absorb impact.
Note Weak
Spots In
Sheet metal
Frame
And
Harden
Metals
In crash
zones
These Are Called Crumple Zones
m These weak spots make it possible for auto
makers to predetermine where the car will
bend in a crash.
= They place these so that the occupant space
will open larger, as impact is absorbed.
= This allows for more survival space for an
occupant.
Why A Total Loss ?
= When metal is heated it warps, distorting it’s
original shape.
m The metal used in cars is very thin, and
needs very little heat to accomplish this
distortion.
m This is a threat to the integrity of the frame,
and the safety of the occupant therefore,
A Total Loss
Do not risk your life for a “Junk Car”
= With all the New Technology of today’s
vehicles, we can not attack a vehicle fire
safely, if we do not know the Dangers we are
facing,
Training
It’s A Must!
= Just like any fire, a safe attack depends on a
Good Size-up
4. On scene Size-up
Dispatch size-up begins, when you
roll out of the door.
m Always repeat the address back to dispatch.
m Ask for additional information. Is this
vehicle on the road, in a driveway or in a
garage ?
u Is this a vehicle fire or a fire resulting from a
collision ?
= Know your area, if this is on the highway, is
it a high traffic area ?
Why ask for additional information?
a If this vehicle is on the highway, we need
PD in route NOW, for traffic control.
m If itis in a driveway or garage we need
engine companies in route NOW, for
possible structure fire.
u If it is a result of a collision, we need ALS in
route NOW, for possible injuries.
Remember !
We can always disregard incoming help.
= A lot of people do not realize that some
departments, especially volunteer, may have
a ten to twenty minute response time, and
miles of area to covet.
u If we wait until we arrive on scene to call for
help, that help has the same or more
response time.
= We must have Good Dispatch Size-up skills
Approaching Size-up
(Down the toad)
m Do I see any exposures in immediate danger
= What is the wind direction?
= Topography; Is the vehicle on a hill?
m Dangers to crew, Is there oncoming traffic?
= What are the on lookers doing? (That is
odd)
Away Down The Road We Can Start
To Refine Our Dispatch Size-up.
= What does this area look like? Is there
woods ot high grass on the side of the toad?
( Exposures we did not know about ?)
= What is the wind direction? ( I need my
apparatus up wind from the fire.)
= Topography, (Is the vehicle on a hill?)
m Dangers to crew, Is there oncoming traffic?
m What are the on lookers doing? ( Rescue ? )
= Do I see open flames ?
a Is the vehicle occupied ?
= Is this a late model vehicle, or an older one ?
= What category is this fire ( front, rear,
compartment ?)
= Do I need more help >
The Arrival Size-up Redefines The
Approaching Size-up
= How much fire is there ? (Do I need An
Extinguisher or an inch and three quarter
line ? )
m Is the vehicle occupied ?
m Is this a late model vehicle, ot an older one?
(I have a late model Honda Civic)
m What category is this fire ( Front, Rear,
Compartment ? )
= Do I need mote help?
= Closer check for occupants ( Or escaped
occupants injured ) ?
= Closer check of exposures
= Closer check of vehicle
= Closer check for occupants
= Closer check of exposures
= Closer check of vehicle (I have a late model
Honda Civic Hybrid, 300-500 Volts )
= Do I need more help ?
Good Size-up
IsA
Practiced Skill
Not A Spur Of The
Moment Decision
Is It Time For A Change In Training
Yet ?
Vehicle Fire Categories
= While putting this class together, I lined up
about 100 pictures of burning cars. I noticed
that there was a pattern I had never seen or
heard anyone teach. These pictures all fit
into four categories.
= Front end fires: bumper to inter dash board
= Rear end fires: tear seat to reat bumper
= Compartment fires: dash to tear seat
= Fully involved fires: bumper to bumper, or a
combination of any two categories.
Some will say, common sense would
tell you that, by just looking.
= Though this may seem obvious, and silly to
even think about.
= Lets look at the New Technology we are
dealing with today.
m By categorizing the fire in our size-up; we
can initiate a safer, faster attack.
Rear End Fire
Late model car
Down hill topography
= Thought of attack:
a In just a few minutes I am going to have a
stream of burning gas running down the
hill, from the plastic gas tank melting.
Or
Fully Involved Fire
Late Model Car
Thought of attack
m That car has about 12 compressed gas
cylinders in it, and the heat is so intense that
they are going to blow, keep my people back
and cool it defensively.
Front End Fire
Late Model Cat
Thought of attack:
= I can approach diagonally from the rear of
the car, pushing the heat away from the
compartment, where all the gas cylinders
Or
Rear End Fire
Late model car
Level ground
Thought of attack:
= In just a few minutes I am going to have a
ring of burning gas tight were my
firefighters will be standing, from the plastic
tank melting.
By categorizing the fire, we
can train our minds to
ptioritize the dangers we face
in that particular area of the
cat.
Rear End Fire
= Gas tank
= Possible gas cylinders in both C post
= Pressurized fuel lines
= Two rear tires
= Rear bumper struts
Front End Fire
= Front bumper struts
= Hood Struts
= Two front tires
= Possible gas cylinders in both A post
= Possible magnesium
With Manufacturers Already
Producing Cars Like BMW
( With Optional 22 Air bags )
= Not many of us can remember ( in the time
it takes to do a size-up ) That this car has:
= 2 Front bumper struts
= 2 hood struts
a 2 front tires that can blow
m 2 “A” post gas canisters
m 2 Dash mounted gas canisters
= A steering wheel air bag with 2 igniters
m A passenger air bag with 2 igniters
m A carpet air bag (igniter in the consol)
m 2 ait bags in the front doors (with gas
canisters )
2 pyrotechnic seat belts in the “B” posts
Seat position ait bag under driver seat
2 side curtain ait bags
Some have 2 roll over protectors (some gas,
some pyrotechnic)
2 rear occupant air bags in the back of the
front seats
2 ait bags in the rear doors
2 pytotechnic seat belts in reat seats
2 gas canisters in the “C” posts
2 rear tires that can blow
2 gas struts on trunk led
2 gas struts on the rear bumper
A plastic gas tank
Plastic pressurized gas lines
And a magnesium engine
Front End Fire
= 2 front bumper struts
m 2 front tires
= 2 hood struts
m Gas canisters in the area of the dash and
“A” posts
= And magnesium motor
Rear End Fire
m Plastic gas tank
m 2 rear bumper struts
m Gas canisters in “C” post
= 2 Tires
Front End Fire
= 2 front bumper struts
m 2 front tires
= 2 hood struts
m Gas canisters in the area of the dash and
“A” posts
= And magnesium motor
Compartment Fire
= These kind of cars have about 45 dangers
inside the compartment.
a Is the fire small enough to put out or am I
going to fight it defensively ?
Categorizing
Help Us ?
mé ns AE
Appatatus
Placement
If At All Possible !
= The apparatus should always be positioned
up wind from the burning vehicle.
= Today's vehicles are about 40 % hydrocarbon
based plastics, which put off hundreds of
different toxic gases.
= Most vehicle fires produce thick black
smoke, impairing vision.
Again, If At All Possible !
= The apparatus should always be placed up
hill from the burning vehicle.
= This has always been a part of our training,
but today this is no longer an option but a
MUST, with the new plastic gas tanks and
pressurized plastic gas lines running all the
way to the front of the car. We ate going to
have gas running down the hill.
= The pump panel should always face the
burning vehicle.
u This gives the engineer a clear view of the
scene.
= And on the side of the road, this gives him
protection from oncoming traffic.
Positioning the apparatus
= If the burning vehicle is on the roadway or
the shoulder of the road, the apparatus
should be placed diagonally, blocking the
lane the vehicle is in and at least the next
adjacent lane.
= This forms about an 80,000 pound wall
between you and the oncoming traffic.
Water Supply
And
Fire Streams
Water supply
m For years some of us have used a one inch
line or red line to attack a vehicle fires.
= With the New Technology we are facing
today, we need a lot of water, real fast, from
a long distance.
= With plastic gas tanks, and plastic fuel lines,
and dozens of gas cylinders to explode, we
need a fast knock down of the fire, from a
long distance. Before approaching the fire.
New Training
= Always use at least an inch and three quarter
line, and an adjustable fog nozzle to attack a
vehicle fire.
= This gives us pressure to wash spillage out
from under the vehicle, while cooling the
tank from a safe distance.
= This gives us more water to cool the fire.
m And a fog stream to protect out crew when
apptoaching the vehicle.
Fire Streams
An Adjustable
Fog Nozzle
Would Be
Our Best
Choice
We Have
Adjustable
GPM
Fog
Pressure
150 GPM at a pressure of 75-100 Ib. Straight Stream For
Long distance wash down.
Then adjustable fog for approach
And adjustable GPM and pressure after knock down for
Water conservation and cooling.
This is the pressure we used in all
the expetiments you ate about to see
New Training
= Keep in mind that the training in this class
may not be the only way of safely attacking
the fire.
= But seeing the desperate need for change,
this is some of the approaches that we have
experimented with and believe will make an
aggressive approach a lot safer, when facing
the New Technology of today’s vehicles.
1. Never approach a burning vehicle without
full bunker gear, and SCBA.
The materials that today's cars are made of,
put off deadly poison gases.
They WILL KILL you !!
2. Never tisk injury to save a burning car,
it was already junk when you arrived on
scene.
Remember the golden rule : If you see
open flames upon attivall that vehicle is
already a total loss,
Is your life worth $50.00
in scrap iron ?
3. Never cross in front of the burning vehicle.
Remember the film were the bumper blew
off.
Or the picture of the bumper strut still in
the ait.
Or the hood strut in the mans leg.
Always go atound the non burning end.
This Could Be You !
4. Never enter the vehicle, with any part of
your body, until every part of that car has
been completely cooled.
Remember the ait bags blowing out
through the roofs.
The gas cylinders throwing shrapnel in all
directions
These are hand grenades with the
pins already pulled !
5. Never open the hood, trunk lid, or
hatch back, without first bending the
edges and cooling the struts.
These ate mounted on plastic sockets
that are probably melted, and the hot
cylinder has built up pressure inside.
Remember the mans leg ?
They Are For Real!
Expect The Unexpected In Every
Vehicle Fire !!
= While putting this class together, we were
dispatched to a fully involved early model
van fire.
= This was a very routine type vehicle fire,
none of the new technologies was involved.
= À simple knock down, and get in there and
put it out.
Just Like Old Times !!
No dangers, Just Play Time.
No
Air Bags
No
Gas
Canisters
New Training
= With Change, Come Resistance To Change.
= New Training: Means going against
everything we have been taught.
So Please Bare With Us
And
Look At The Whole Picture.
Rear
Seat
To
Rear
Bumper
Dangers: Plastic Gas Tanks
Rear Bumper Struts
Nitrogen Gas Cylinders in C/D
post.
Rear Tires
Trunk lid Struts
Contents of trunk
Causes: #1 Arson: Stolen vehicles are usually
started in the rear in attempt to blow
the gas tank. Or destroy evidence (Such
as a body in the trunk).
#2 Contents of trunk: Multiple chemicals
being hauled, spill causing chemical
reactions.
#3 Tires: Running on flat tires; Rubber
gets hot and ignites.
From the C/D post to the rear
bumper there is very little mechanical
that can start a fire.
Gas tanks are usually a result of a fire
caused by collision.
Approaching A Rear End Fire.
m We have always been taught to approach a
reat end fire diagonally, come in on one of
the cornets.
= #1 Washing the spillage out from under the
cat. With a straight stream, from a safe
distance.
u #2 Splashing water up to the gas tank area,
to cool the tank.
This Was Good, But You Will See In
The Next Step Our Reason For
Change
mu We are experimenting with the idea of
apptoaching diagonally from the front
corner of the fire area, rather than the
corner of the car.
m Same as before, wash out under the car
while cooling the tank, from a safe distance.
= This is doing the same job, and pushing the
heat away from the unburned area of the
car.
Pushing
The Heat
Away From
The
Unburned
Area
Step #2
= We have always been taught to turn to a
natrow fog stream, while approaching the
cat, doing a fast knock down of the fire.
= This is basic firefighting, the fog stream
takes away the heat, while providing
protection for out crew.
= Same fog stream, same cooling, same
protection.
= But now we are pushing the heat away from
the unburned compartment area, where all
the New Technology is located.
= When knock down was accomplished, our
next priority was to cool the bumper struts.
a Making it safer for us to work on getting the
trunk lid open.
Remember The
Struts Blowing
And
At The Same
; Time The
» Seat Of The Fire
Is Getting
Hotter
Let’s Look Back At Statistics
a With the number one and two causes of rear
end fires, whether criminal or chemical, the
seat of the fire is based inside the trunk.
= Basic firefighting. What is the first part of
the car that is going to burn?
= The cloth and material in the back of the
seat and the cardboard reat dash.
m Every thing else is metal, or unknown
hazards of contents.
New Training Step #3
= With the back seat burning, the heat is
rising, the fastest thing to burn through is
the cardboard dash, letting the fire spread
into the compartment area.
= Let's go back to our New Technology and
see what out priorities are now.
mE
Both Sides In C Post
) if |
Both sides ol
Ya
m We can safely bust the rear door glass, and
cool the C posts and air bag areas.
As In Forcible
Entry
Always Stand
To The Side
To Bust The
Glass
= Using a pike pole we can teat out the rear
dash, leaving a hole into the trunk, without
ever entering the vehicle.
Old Training Step #4
m After thoroughly cooling the bumper struts,
we ptoceeded to open the trunk.
m Unaware Of the status of the fire inside.
= Unawate of the content hazatds.
= Unaware of the status of the gas struts on
the trunk lid.
Back To The Hole Into The Trunk.
a By putting water through this hole, we cool
the Base of the fire, in the first few minutes
of the attack. As compared to the time it
takes to cool the bumper struts, and open
the trunk.
m At the same time the steam conversion
forms a blanketing affect, smothering the
fire. (We are using two parts of the tetrahedron)
The Safest Part.
m We have never opened the trunk lid.
= We have never been in danger of the bumper
struts.
m We have never been in the path of an
exploding trunk lid strut.
= And we ate not going to open the trunk to
an unexpected flash of fire.
= Open the trunk lid.
= Not knowing the status of the fire.
= Not knowing if the lid struts are going to
shoot out like arrows or not.
= Not knowing the status of the contents.
New Training Step #5
= While the steam is blanketing the fire.
= Cool the tite and bumper strut, on that side
of the car.
= Never cross in front of the burning end, go
around the non-burning end of the car to
the other side and cool the tire and bumper
strut on that side.
= With a halogen bar pushed into the edge of
the trunk lid, bend the edges of the trunk lid
up, and cool the struts on both sides.
Using this method, to our surprise !
Each time we opened the trunk,
the fire was totally out.
It Worked
Every
Time
Even more to our surprise !
m We had put a foam rubber tear seat, and
some cardboard in the trunk, and about 1
gallon of gas to make a very hot fire. We
allowed it to burn awhile before attacking.
= After washout, knock down, extinguishment,
and total cooling of the vehicle.
m We had used less than Y4 of a 300 gal tank of
water. ( Steam Conversion )
The Water
Takes Away
The Heat
The Steam
Smothers
The Oxygen
We Later Found One Problem With
This Method.
= Some after market speakers are bolted in,
where the factory speakers just knock out.
= So we found another way to do the same
attack.
m We tried to hook the center of the seat back
and pull it out, very unsuccessful .
= But, we hooked the seat back about 6 inches
from the corner, and one small pull it was
loose.
Using This Opening We Done The
Same As Before
m But each time we
opened the trunk, we
found a very good
knock down, but still
some small amount of
flame.
We Tried Pushing The Seat Back
Into position
= This would close the opening after we
applied the water.
m We opened the trunk and there was no fire.
= The smaller hole retains our steam, putting
out the fire.
= This method is easier than the speaker hole
But, pushing the seat back is a must.
We faced: 2 gas canisters
2 Air! And Not
2 gas struts Once
2 Bumper Struts
Did We
2 Tires Put Our
Crew |
A plastic gas tank Danger !
Unknown Contents
Many have ask why not use a piercing
nozzle to get the same effect ?
We can, but in looking at this we found a few
draw backs
Piercing Nozzle; Do You Have One?
= Time; It takes extra time to hook-up the nozzle.
m Dangerous obstructions inside the trunk; some
cars have batteries mounted in the trunk.
m Some like the VW we seen have gas canisters
mounted in the trunk.
m And as bad as it sounds we could be pushing it
into a body, stopping the flow of water.
= Also we would have to put two men in front of a
gas canister to insert the nozzle.