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Posted: Oct 13, 2015

Department Overcomes Design Challenges for a Functional Rig with Plenty of Storage

Alan M. Petrillo

Good Intent Fire Company No. 1 is one of seven fire companies that make up the Pottsville (PA) Fire Department, and Good Intent is charged with serving as the department's rapid intervention team (RIT) as well as supplying a first-due pumper for its coverage area in the city's downtown business district.

The fire company's response area is well supported by hydrants with an ample water supply but consists of some very tight streets and very steep hills, making the overall length and wheelbase of a new pumper considerations in its design. Good Intent also provides RIT services for several surrounding communities, so having seating for 10 firefighters and enough compartmentation to carry the specialized RIT equipment in an easily accessible configuration was a primary concern.

Three Good Intent firefighters, one of them a Pottsville assistant chief, work at KME and communicated the fire company's needs to the manufacturer. Mark Higgins, contract specialist at KME and first lieutenant in Good Intent, says there were several reasons the fire company approached KME about building its pumper. "We chose KME because the factory is close to our fire company-about 50 minutes by road-three Good Intent firefighters work at KME, and we had a good opportunity to oversee the vehicle from inception to completion."

The KME-built PRO pumper for the Good Intent Fire Company No. 1, Pottsville, Pennsylvania, is powered by a Cummins 505-horsepower ISX 12 turbo-charged diesel engine and an Allison 4000 EVS automatic transmission and is built on a 189-inch wheelbase with a 31-foot, eight-inch overall length, which allows the pumper access to tight city streets. (Photos courtesy of KME unless otherwise noted.)
1 The KME-built PRO pumper for the Good Intent Fire Company No. 1, Pottsville, Pennsylvania, is powered by a Cummins 505-horsepower ISX 12 turbo-charged diesel engine and an Allison 4000 EVS automatic transmission and is built on a 189-inch wheelbase with a 31-foot, eight-inch overall length, which allows the pumper access to tight city streets. (Photos courtesy of KME unless otherwise noted.)

Equipment Storage Needs

Jason Witmier, KME's product manager of aerials, also Pottsville Fire's assistant chief, says, "Because we went into taking RIT calls, we had to move from our prior pumper with seating for six firefighters to seating for 10, along with carrying all the extra RIT equipment. We needed to have good operating space inside the cab yet still maintain a manageable wheelbase to function on some very tight streets. We came up with a 189-inch wheelbase, which was an inch shorter than our previous pumper."

However, the new KME PRO pumper on a Predator XLFD chassis has a 22-inch raised roof and added 110 cubic feet more compartment space than the previous rig. "Our new PRO pumper has 29-inch-deep full-height and full-depth compartments plus four full-size coffin compartments on top," Witmier says. "We were able to keep the ladders low in a tunnel under the 500-gallon United Plastic Fabricating water tank. The pump on the vehicle is a Waterous CXS 1,500-gallon-per-minute (gpm) pump, and there's a 30-gallon foam tank integral with the water tank."

Firefighting and Rescue

Witmier notes that the pumper typically runs in a city where there's a fire hydrant on every block. "We didn't need a bigger water tank," he observes. "We can easily hook into a hydrant by the time we use up our 500 gallons of water."

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Posted: Oct 13, 2015

Exposure Tracking App Aims to Help Prevent Chronic Firefighter Illnesses

Clive Savacool

It's 03:00. You're in bed at the firehouse. You've already run 14 calls this shift, and you finally get to sleep.

You're awakened by the familiar station tones, and you hear multiple units dispatched with your engine company listed first; you know it's going to be a structure fire in your first due. With your heart racing, you get to the engine and start dressing into your gear that still has the strong car-fire smell on it from two hours earlier. En route to the fire, you see a large black column of smoke and you get updates from dispatch that they're receiving multiple calls of a resident unaccounted for.

Pulling up on scene, you take a preconnected hoseline through the front door of a well-involved house and proceed to knock down the fire just like you have so many times before. You find the resident in a back bedroom closet, but she's suffered major burns and is obviously deceased. You leave her in place for the investigators. Twenty minutes later, drenched in sweat and covered in ash, you exit the house to change your self-contained breathing apparatus (SCBA) bottle and head back in for overhaul. After that bottle finishes, you and your crew decide the smoke is mostly dissipated so you take off your SCBA and finish overhauling the structure. An hour later, you're back at the station. You and your crew are putting the rig back together and then you sit down in the apparatus room for some coffee before getting off shift.

1 The Exposure Tracker is designed to collect objective information of all the toxic exposures, injuries, and communicable disease exposures firefighters face every day. By logging incident details, such as the types of structures involved and the activities performed, a firefighter can use the program's analytics to have a greater level of awareness for his health and welfare. (Photo courtesy of The Exposure Tracker
1 The Exposure Tracker is designed to collect objective information of all the toxic exposures, injuries, and communicable disease exposures firefighters face every day. By logging incident details, such as the types of structures involved and the activities performed, a firefighter can use the program's analytics to have a greater level of awareness for his health and welfare. (Photo courtesy of The Exposure Tracker.)

You head home from the shift with that sunburned, dried out feeling on your face and some blisters on your ears but otherwise feeling like all you need is a nap to fully recover. Most of us have had enough of these experiences that we've forgotten the majority of them. In reality, the previous 24 hours had serious effects on your body and mind. The multiple exposures to smoke are mounting factors for cancer; the constant highs and lows with heavy exertion are a path to heart disease; the smoke and particulates can lead to chronic lung disease; the diesel exhaust and soot in the apparatus room can lead to bladder cancer; and the psychological effects of seeing a traumatic fatality is one more trigger for post-traumatic stress disorder (PTSD). Our dream job is one of the most self-destructive professions.

Tracking Exposures

So, do we stick our heads in the sand and say, "It's all just part of the job?" Or, do we embrace change and find ways to improve our profession so that we can thrive in both our career and our retirement? We must acknowledge that we're human and that we can't go through hell with the expectation that everything will "go away" at the end of the day.

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Posted: Oct 13, 2015

What Is EWS?

ROBERT TUTTEROW

EWS ... ah ... another acronym for the fire service. What is EWS? It means enhanced water streams.

This means there is an additive in the water to make it more efficient-i.e., foam concentrate or wetting agents. This past May, I had the privilege of working with the Kill the Flashover Project (KTF). A key component of KTF is researching fire behavior. The current research involves many facets of fire extinguishment including tactical air management (flow path management), the use of thermal imaging cameras, and EWS.

Why EWS?

Concentrates have been around for decades but are rarely used in structural fire suppression. Moreover, water works-and it's free-at least for the fire department. According to Albemarle (NC) Fire Department Chief Shawn Oke, concentrates aren't used because they are so misunderstood. Oke has studied concentrates, especially wetting agents, extensively and has written two executive fire officer (EFO) applied research projects on the subject. He is a strong advocate, as his entire fleet having wetting agent capability indicates. His department uses EWS for all fires. Oke is also a co-leader at the KTF research burns. One of this year's KTF burns was a comparison between a room and contents that were pretreated with plain water and a similar room that was pretreated using EWS. There were four notable findings in the comparison:

  1. EWS slowed progression of fire growth in the fire room.
  2. It reduced the risk of fire injury entering the "conditioned" area (hallway area pretreated with EWS).
  3. It decreased the rekindle chance.
  4. It increased the moisture in the fire room and "conditioned" room, allowing for an increased time of entry or reentry into the fire room.

Cost

Perhaps one of the biggest obstacles in embracing concentrates is the cost. There must be a delivery system on the apparatus unless the department wants to batch mix by adding concentrate to the booster tank. Then there is the cost of the concentrate. Many people equate EWS with aqueous film forming foam (AFFF) concentrate, which is proportioned at three to six percent. The concentrate mixture used with the EWS in KTF was 0.4 percent-not four percent but 0.4 percent. That is a huge difference. A little bit goes a long way.

Benefits

In the simplest of terms, EWS makes water much more efficient. Concentrates are surfactants and allow water to penetrate the fuel, thus improving the cooling capacity as well as minimizing runoff-i.e., unused water. As Oke states, the fire goes out quicker, the room gets cooler quicker, and the fire stays out. EWS is kryptonite for the embarrassing situation commonly referred to as "rekindle."

There is also an added benefit of EWS in the emerging world of fire suppression. There is a huge benefit in "conditioning." This means that EWS is applied to potential interior exposures as the fire attack team makes its way to the fire. Interior exposures can include walls, ceiling, floor, and furnishings. Conditioning adds moisture to the surfaces and humidity to the atmosphere. The concentrate causes the water to cling to the interior surfaces, whereas plain water will simply run off.

As just mentioned, humidity is added, and one might ask what the benefit of high humidity is. As Joe Starnes, who heads the KTF project, frequently says, "Try lighting a match in a sauna." The KTF project used positive-pressure ventilation (PPV) units with mist

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Posted: Oct 13, 2015

NFPA 1901 and 1906 Updates

Roger Lackore

National Fire Protection Association (NFPA) 1901, Standard for Automotive Fire Apparatus, and NFPA 1906, Standard for Wildland Fire Apparatus, are the guiding documents for apparatus design.

As such, Fire Apparatus Manufacturers' Association (FAMA) member companies take a very active interest in their content. Changes made to these documents by the NFPA Apparatus Committee can have significant impact on safety, performance, and cost. The committee, comprising fire chiefs, industry experts, and manufacturers, has been working on revisions over the past few years, and the new versions will take effect on apparatus contracted for delivery after January 1, 2016. In contrast to the 2009 standards updates, the document revisions this time around do not involve dramatic impacts to apparatus design. Here are some highlights included in the 2016 revisions.

Ultra High Pressure

The use of ultra high pressure in fire suppression has been promoted by the United States Air Force over the past few years. Having recognized that this technique has been gaining popularity in certain applications, the committee defined pump discharge pressures up to 500 pounds per square inch (psi) as "Normal Pressure," between 500 and 1,100 psi as "High Pressure," and over 1,100 psi as "Ultra High Pressure (UHP)." A new chapter has been added to establish the minimum requirements of a UHP pumping system.

New Apparatus Familiarization

It is common for new apparatus deliveries to include some degree of familiarization by the apparatus manufacturer or the sales organization. This practice is now included as a requirement in the standard, with guidance as to what should be covered and the qualifications of the instructor.

Safety Sign Standardization

Originally prompted by Chief Thomas Wood of the Boca Raton (FL) Fire Department, the FAMA technical committee developed a series of standardized safety signs covering the common hazards of fire apparatus operation. Wood felt that firefighters were better served by having consistency in the safety messages between apparatus-even if they came from different manufacturers. Many of the FAMA signs have been added as requirements in the standards, ensuring that safety messages on future apparatus will be consistent across all manufacturers' products. The complete set of FAMA safety signs can be viewed and downloaded from the resource tab at www.FAMA.org.

FAMA Safety Guide

Another FAMA initiative was creating the FAMA Fire Apparatus Safety Guide. This guide, now in its second revision, covers safe practices common to all fire apparatus and is a great resource for safety-conscious fire departments. A copy of the FAMA Fire Apparatus Safety Guide will be required to accompany every new apparatus delivery. Fire departments may purchase extra copies of the guide at http://www.FAMA.org.

Seat Belt Stalk Length

The ease with which firefighters can buckle their seat belts continued to be a topic of discussion at committee meetings. One means of making it easier to buckle the belt is to increase the height of the buckle stalk. A higher stalk is easier to reach, but a stalk that is too high reduces the effectiveness of the belt in a crash. After studying the science, the committee established a maximum buckle stalk length that it feels will improve reachability without compromising performance.

Tiller Cab Integrity

In 2009, NFPA 1901 was revised to mandate cab integrity criteria for large apparatus. The n

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Posted: Oct 13, 2015

Renovating Existing Firehouses a Viable Option for Fire Departments

Not every fire district or municipality can come up with the funding to build a new fire station when the need arises. That's when rehabilitating and renovating an older firehouse to accommodate new fire apparatus and equipment become the answer to allow those structures to function well in the 21st century.

Leading Reasons to Renovate

Bob Mitchell, owner of Mitchell Associates Architects, says there are several possible reasons a fire department might choose to renovate an older station. "It's certainly easier to build a new structure on a different site," he says, "but a department might not do it because it can't afford a new building, there is no plausible alternative site, the old station might be a historically significant building, or there's a public perception against a new station."

Mitchell notes the biggest driving force in renovating older fire stations is the larger size of fire apparatus today. Apparatus bay door heights and bay lengths are two of the biggest concerns in choosing renovation over building new, he adds. "The old 10-by-10-foot overhead doors don't work at all anymore," he says. "We're using 14-by-14-foot doors now. The body on a fire truck is typically eight feet wide, and with mirrors it grows to 10 feet, which could fit in a 12-by-12-foot doorway, but we like to keep eight feet of clearance from one truck bay to another."

1 The city of Lincolnton, North Carolina, chose Stewart-Cooper-Newell Architects to renovate an existing fire station and city hall and put on an addition that connected them into a modern new facility. (Photo courtesy of Stewart-Cooper-Newell Architects
1 The city of Lincolnton, North Carolina, chose Stewart-Cooper-Newell Architects to renovate an existing fire station and city hall and put on an addition that connected them into a modern new facility. (Photo courtesy of Stewart-Cooper-Newell Architects.)

Ken Newell, a partner in Stewart-Cooper-Newell Architects, says he performs a facility feasibility study for fire departments that can identify deficiencies in an older station and suggest remedies to correct them. "A department might need 15,000 square feet of space in a station and currently be operating out of 7,500 square feet, so we will quantify the additional space needed," Newell says. "Deficiencies in older stations usually start with bay space because fire stations built 20 to 50 years ago typically are not large enough for new fire apparatus, especially in height, length, and width. Also, older apparatus bays often have problems with their exhaust and drainage systems."

Joe Mottola, president of H2M Architects, says that in almost every case of a firehouse renovation, the focus is on the apparatus room. "Usually the department wants to get bigger trucks into a larger space in a safe manner with proper clearances," Mottola says. "That's the heart and soul of a fire station renovation, and once we get that laid out, then we get into the other spaces like meeting rooms, offices, and the kitchen."

One consideration sometimes overlooked in apparatus bay renovations is the overall height of the bays, Mottola says. "A question we ask is if they need to raise the cab in the station to do maintenance," he notes. "Or, do they need to put a truck on lifts in the station. Those answers will drive the interior height of the truck in the bay."

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