Friday, January 6, 2017
SAFE Fireground: Flowing
SAFE Fireground: Flowing
By: Nick Ledin
As we’ve already mentioned in previous articles, the key to fast water and a SAFE
fire ground is SAFE (Stretching, Advancing, Flowing, Extinguishing) training. Fires
are getting faster, and so should our water. Fast water is dependent upon all four
elements of SAFE being performed proficiently since a smooth attack truly is more
than the sum of its parts. This article will focus on flowing water for the win.
Specifically, focusing on the "why", "when" and "how" to flow when you are
advancing on a covered fire that you can’t immediately reach with your hose stream.
Let’s start with the all-important "why". We’re all aware that smoke is fuel, but we
must understand that smoke is energy too. Many think of the seat of the fire as a
heat pump, producing huge amounts of convective, conductive and radiative energy,
with all of this energy released into the building. While this is a great analogy, we
must think of the smoke throughout the building as a secondary heat pump,
releasing large amounts of energy to the ceiling, walls, contents, and anyone inside
the building, as well. Predictably, when left unchecked, this secondary heat pump
can lead to rapid fire progression and untenable conditions. While it’s imperative
that we get to the seat of the fire, we have to have a plan when we can’t reach the
seat. We can still begin to control and cool the environment around and ahead of us,
buying some time and creating more tenable space and time for anyone still inside.
This cooling will also make our advance to the seat safer and may be our only
chance to reach the seat in a timely manner.
Now that we’ve discussed the "why" let’s move on to the “when”. If you’re advancing
a hose line inside a building and you can’t yet reach the seat of the fire because it’s
hot, cool it. Seems pretty simple, right? By cooling the overhead you are buying
some time. This action may buy you only a handful of seconds, and create only a
couple of handfuls of square feet of space, but it should give you the time and space
you need to make the turn and reach the seat of the fire. While we can talk in circles
about what constitutes a “hot” overhead, the truth is that inside the fire building we
have no specific, empirical trigger points that can define “hot”, so a good rule of
thumb is to always, using good reason and solid judgment, cool the overhead.
The concept of cooling the overhead is nothing new and many have been preaching
it for decades. Although it has numerous names (gas cooling, protective cooling,
smoke cooling, etc.) and techniques can cause quite a bit of confusion amongst even
the most engaged firefighters. So to hopefully add a small bit of clarity and give an
option to those of us that use smoothbores, or even straight streams inside the fire
building, let’s explore the “how” of protective cooling. The attached video, shows
ONE way to effectively cool the overhead as you make your advance to the seat of
the fire. As with all things operational on the fireground, due to the dynamic nature
of our "office”, we need to be able to be flexible with our tactics. Depending on your
distance away from the seat of the fire, the power of the fire, the temperature inside
the building, the size of the building or compartment, your equipment, the vent
profile, and your technique, you may have to cool the overhead more or less often.
While there are many ways to make this technique work, some general rules of
thumb with the ceiling sweep are to:
- Sweep the ceiling side to side across the entire width of the ceiling (within
reason, we’re assuming the fire is in an average SFD), therefore the larger the
room, the wider the sweep.
- The hotter the environment and more powerful the fire, the more water
needed with each sweep, so slow down your nozzle movement and keep the
bale open longer.
- The hotter the environment and more powerful the fire, the more often you’ll
need to sweep.
- Use the reach of the stream to your advantage, and if the fire is farther away
from you, lower your nozzle angle a bit.
- Everything else being equal, the more GPS (gallons per second) you’re
flowing, the less time your bale will need to be opened.
I could go on, but the specifics for this technique are much more important than the
generalities. Like everything we do in this job, the gray areas require gray
matter…and, of course, lots of sweat on the drill ground.
If this concept or technique is new to you, get out and mess around with it and
figure out if it works for you. If it does, use it; if it doesn’t, figure out another way to
deal with the problem of a tough advance on a covered fire. Below are a couple of
other flowing primers to serve as a template for your training.
Flowing:
- Know your flows (GPM); flow test your equipment packages (pump, piping, hose,
and nozzle)
- Location, size (flow) and technique (pattern, angle, duration) matter
- Exterior attack (steep, straight, static…then the seat)
- Cooling the overhead (gas cooling, protective cooling, smoke cooling, etc.)
- Interior attack (ceiling, contents, floor)
- Indirect/direct/combination attack
- Push - flowing while moving forwards
- Retreat – flowing while moving backward
- When to close the bale?
Kill fire, save people.
I want to acknowledge a handful of my mentors that helped to shape my SAFE
mindset and deserve ALL the credit for the content within these articles. I want to
be clear here: none of this information is new to the fire service, this is just a resynthesis
of information learned from brothers and sisters much smarter than me.
Some of these brothers I have had a chance to actually sweat with, while others I’ve
studied and mimicked from afar. A sincere and humble thank you to Andy
Fredericks, Aaron Fields, Brian Brush, Steve Kerber, Jason Jefferies, Dennis LeGear,
Jeff Rothmeier, Lars Axelsson, Ryan Torres, Ed Hartin, Paul Grimwood, and Dave
Dodson.
Saving Firefighters from Themselves: New Year—New You
Saving Firefighters from Themselves: New Year—New You
By: Demond Simmons, Oakland Fire Department
The recent election of Donald J. Trump to replace outgoing President Barack H. Obama
has caused a great amount of discussion globally—firehouses included. Now that the
people have spoken through our democratic voting process, it is time to move forward
and continue on with our daily responsibilities as company officers.
As professional fire service personnel, we know that one of the most influential positions
of power in the world has very little impact on what we do daily when the bell goes off in
the fire station. As company officers, we will continue to train, supervise, and expect our
people to provide a high level of service to the communities across the United States
that we serve. Internationally, fire service personnel continue to provide invaluable
contributions in the realm of prevention, response, and mitigation.
Using data from NIOSH (1994 – present), we are on pace to record the lowest number
of firefighter fatalities here in the United States. Internationally, the number of firefighters
who have perished in the line of duty varied significantly from country to country.
Between 2004 and 2013, 14 firefighters in the United Kingdom died in the line of the
duty. In one blast incident in China, reportedly 88 firefighters were killed, while in
Germany, nine firefighters died in the line of duty during a seven-year period beginning
in 2005.
Fire departments across the United Sates continue to employ alternative EMS models
that are in line with the community para-medicine concept. UL and NIST continue to
employ untiring efforts to educate us on modern fire behavior. Organizations such as
the Boston Fire Department continue to recognize the importance of cancer prevention
through awareness, education, and reengineering principles.
As we prepare professionally for 2017, we must continue moving forward as educators,
leaders, and innovators. What does that look like for the company officer:
Ensuring that our firefighters wear their SCBA’s from the beginning of the
incident through property conservation and overhaul.
Ensuring that our firefighters doff their gear prior to getting back on the
apparatus.
Ensuring that our firefighters wash their gear (including flash-hood) after
every fire, and on a frequent basis.
Ensuring our crews are not only prepared mentally, but physically, and
preparing ourselves like that of a professional athlete.
Using ICS on all incidents.
Employing rehabilitation and medical monitoring strategies at extended
operations, and in elevated temperature environments.
Encouraging our firefighters to spend less time at the coffee table playing
the role of mayor or fire chief—use that time to enhance knowledge, skills,
and abilities germane to the profession.
Encouraging our firefighters to seek out certifications and college degrees.
Encouraging our firefighters to branch out and learn from other fire service
personnel in different parts of the world—take on a global perspective.
Ensuring that seatbelts are worn by all individuals while the apparatus is
moving.
Being kind to each other. As humans, we are all going through issues in
our personnel and professional lives. PTSD is not just associated with the
military—it is in our communities and in our profession.
Being consummate role models and keeping our younger firefighters
engaged.
The aforementioned list is not exhaustive; however, it is a tectonic list that if rigorously
employed by the company officer, will allow us to realize a downward trend in
occupational fatalities and cancer diagnoses in the fire service. Regardless of who is
serving as our president, you (company officer) can and must ensure that the above are
executed. Your firefighters are counting on you!
Continue to remain a student of the profession
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