The Truck Company Officer

The firefighter in charge of all operations related to the truck company is the truck company officer, whether it be a lieutenant or captain based how your department is set up and operates. This firefighter is the one who paints the picture for the crew and sets the stage for incoming units through the size-up presented over the radio. The message should be clear, concise and simple - (ie., "truck 7 arriving on scene 123 Sesame Street. Two-story wood frame structure, smoke showing from the A/B corner. Truck 7 will be forcible entry and search operations…").

This message from the officer, sets the stage for what's to come next and how incoming units need to prepare for their arrival on scene. 

The truck company officer is also an interior firefighter during this time as well and must remember to bring a few tools with him. However, prior to making entry with the crew, the officer is responsible for performing a 360 degree size-up, if possible. Otherwise a three side size-up will do.

Truck Company Officer Tools

• Officers tool or halligan

• Radio (of course)

• Thermal Imaging Camera (TIC)

Once the officer makes entry inside the structure, they are now in charge of and coordinating all things related to their crews operations and relaying those actions to the Incident Commander (IC). Various situations will determine where the officer will be in relation to the crew in the structure.

During a vent-enter-search (VES) operation, the officer is the last firefighter up the ladder. This is so the irons firefighter and the hook & can firefighter can perform their primary search of the room. All the while the officer is utilizing the TIC to scan the room with a six-sided scan (walls, floor and ceiling) to help maintain contact (visual/verbal) with the firefighters inside the room but also help locate the fire. Most importantly, the officer while utilizing the TIC can assist the crew to a possible victim which should be done with the utmost priority when performing a primary search.

This same practice goes into searching bedrooms or offices off a hallway. The fire officer would remain in the hallway monitoring fire conditions of the search rooms while keeping in visual and verbal communication with the firefighters performing the search. In addition to monitoring the search rooms, it is important that the fire officer monitor the fire conditions throughout the hallway keeping in mind the type of structure the they are in, in relation to how fire behaviors in the different types of construction thus being situationally aware of what could go wrong. 

The last thing the truck company officer is responsible for is having trust in himself, his crew and those working in coordination with him inside and outside of the structure. 

Once the incident is complete and the company is back in quarters, one of the best things the truck officer can do is sit down with the crew and discuss the pros and cons of their job on the incident. This will help with building a solid bond with each other and solidifying the trust of working each day together.

Until next time, work hard, stay safe & live inspired.

Outside the Box 360

Performing a 360 upon arrival of a residential structure fire is crucial. Everyone always hits on building construction, type of occupancy, number of floors, and visible fire or smoke.

Did you notice a vehicle in the driveway, indicating someone may be home?

Did you see that the vehicle has a handicap placard on the license plate, indicating the owner may have a disability of some sort?

You walk up to the front door and notice children’s toys in the yard. Do kids live here?

Remember to look at the roof, utility lines connecting the house, solar panels, and satellite dishes. All these things could cause a hazard for crews operating on the scene.

You may arrive on scene and find a lot of clutter in the yard, leading to you assuming there may be hoarding conditions in the residence. We often find ourselves in tunnel vision and not looking at smaller aspects of the scene.

We want to hear from our followers. What are you looking for when you arrive on the scene?

Until next time - work hard, stay safe & live inspired.

The Size-Up

Let’s Talk Size Up! 

Talk. If you just talk is anyone listening? Well, they should be. But if you don’t send the message properly, not only will they not listen, but they will also not get the picture you are painting. So, what is size up? To me, it is much more than just talk. It is giving others the image you are seeing right now. It is giving them vital information about whatever the incident is at hand. Let’s just base this conversation on House fires. What are you looking for? Is it just the building? NOPE! There is so much more. What is the exterior telling you about the possible battles you may face? I recently read a post from OJ Kolodziej, a Fire Captain from Birmingham AL and the owner at Magic City Truck Academy, a Fire based training company similar to mine. If you don’t follow him, you should!  But he made a recent post on size up. It was a short post about vehicle size up at a house fire!  Yup vehicle size up. This simple method will help you find clues of what may be inside this home.  How? Glad ya asked, look into that vehicle instead of running past it!! Well, if you have a visible victim then yeah go past it. For the sake of this article, there are no visible victims. Look at the car, are there any car seats or booster seats, how many? What are the license plates? Handicap, or is there a handicap tag hanging on the mirror? What is the general condition of the car? Is it in shambles and full of stuff and things, this may give insight of the interior of the home. Is the hood warm? What does the back window have for stick figure stickers?? A vehicle can tell you a lot!  


Photo by Ryan Johnston, training burn Greenville Maine 

Now we have looked at the vehicle, what does the door yard look like? SQUIRREL!! Did you notice I didn’t talk about time of day? Yeah, I’m not going to. Now several years ago I might have. But as our world changes so does our size up factors. The lack of or having a vehicle in the driveway at any point day or night is not really a reason (in my opinion) to search more or less. Today’s culture has taught me that it doesn’t matter what time of day it or if a vehicle is present or not that I should not base my search on either of these items. They may direct me towards a targeted search, but not swaying my decision to search. With COVID and just the amount of people working from home, we are likely going to find victims regardless of the time of day.  

OK back to my original thought. You have taken note of the vehicle, and you are likely doing a 360.  What are you seeing? Building type, number of floors, is there the same number of floors in the front as there are in the rear? What are you smelling? What are the conditions? Smoke, Fire,  Nothing? If you do have smoke or fire, from where and how much? You can even get into the smoke volume, color, speed and density. Do you know what your water source is going to be?  What mode of attack will you be in? Offensive, Defensive, Investigation? Once you announce this info over the radio to the incoming units establish command. I am the worst person for a stationary command, but it is important. So, announce the location of command, rely on you officer staff to relay pertinent information to you as needed and once a command post is established stay there, if possible, see what I did there? In the fire service Never and Always are two bad words. The thing about size up is that it is always on going. As the incident changes the resources that you may need or not need changes. I try to reassess the incident every 10 to 15 minutes in the first hour.  After that the incident will dictate my time line. This article is no means the end all to size up. It is  just some of the things I do. Hopefully this will trigger you to look at how you size up your fires and  as always, if you have any questions or comments please reach out! I really enjoy it when we have  feedback, I learn so much from all of you, either when I am out strutting or if it is through this article sparking conversations. SO, how do you size up?  

Ryan Johnston

Owner, Maine-Iac Training

www.maineiactraining.org

ryan@maineiactraining.org

Dangers of College Rental Properties

Having a college in your response area can be a source of frustration and try one’s patience. For many new college students this is their first time living on their own and fending for themselves. This often brings an increase in nuisance alarms, medical calls following the first big campus party and a host of other calls for service. However, as trying as it may be, it is important not to become complacent. In a study published by the U.S. Fire Administration it was found 94% of fatal campus fires took place in off-campus housing. This is an alarming statistic we should be aware of. As the cost for college continues to increase more and more students will look to live off campus to save money. Knowing the common dangers found in off campus housing and the tactical considerations to take when responding to emergencies at these locations is critical for any department that has a college in their response area.

Typically, off campus housing owned by the college are required by either local or state building codes to have a higher level of fire protection. This is also true for privately owned rentals that are either listed as college rentals or multiple dwellings. The most dangerous of the off-campus housing are the privately owned rentals that “fly under the radar” of local building departments. The legality of these occupancies varies based on the authority having jurisdiction as well as local and state building codes. These rental properties are usually close to campus and were once privately owned single-family homes. Due to this, these occupancies are rented as a single-family rental. The rental agreement is signed by one individual, but in reality, a group of individuals live in this rental and share the cost. Yet, as far as any documentation shows it is a single person renting a single-family home. This is how these occupancies “fly under the radar” and are not required to have the same level of fire protection as would an occupancy listed as a multiple dwelling.

The traditional ways one can identify a multiple dwelling from the exterior does not hold true in identifying these off-campus houses. These are often single-family homes and are kept to look that way from the outside. They have one meter as opposed to multiple meters, which ordinarily could have been used to determine how many apartments maybe present. The amount of cars present could signify how many people live at the location. However, because these occupancies were once single-family homes there often is not the space to park more than two vehicles. The number of vehicles may also be limited per the rental agreement, street parking regulations or just the simple fact that many college students do not have their own car. The photo below is of a college rental that on paper is a single-family rental. In 2021 it had 15 college students living in it.

On the inside of these residences the layout may remain similar to its original design or be completely changed to accommodate more individuals. One of these common changes is making living spaces that would normally be a dining room or sitting area into bedrooms. This might be done by placing temporary wall partitions or like in the photo below, simply hanging a large curtain. This is important to note because at 2am bypassing the dining room to head directly to the second floor to search bedrooms might have you passing a bedroom.

Bedrooms or rooms with doors tend to be created into single room occupancies (SROs). Each SRO will have an individual lock and could house multiple renters in a tight space. Often, each of these doors will have a hasp on the interior and exterior of the door and a padlock is used. When a renter leaves, they place the lock on the outside, when they are home, they can place it on the interior hasp. Land lords do it this way for cost saving reasons as well as to make it easy on the land lord when renters change. In the middle of the night during an emergency it is going to be very difficult for occupants to find a key and then open the door increasing the likelihood of trapped victims. Crews should also consider taking the appropriate forcible entry tools because doors in most home that would be unlocked will need to be forced in these occupancies.

In this particular building the front door had a keyed lock on the inside which if engaged could inhibit occupant egress. The occupant’s ability to evacuate is a major issue in these rentals. Looking back at the exterior photo of the building the third floor has no second means of egress leaving only a very narrow interior staircase to get up and down. This staircase is also challenging for crews to ascend to complete searches or get a hose line in place.

Common areas are often overloaded with furniture in what many would consider abnormal configurations. Clutter is also a major issue. Packing so many people into small spaces it is almost impossible to avoid. Below are a few examples of conditions found in these rentals. In the first you can see a living room packed with couches. During the week they are pushed together to allow for easier travel between rooms, but over the weekends and at night they are spread out and block entrances in and out of different rooms to allow people to congregate and sit. The next photo shows a bedroom that has not only a bed, but a couch coffee table and dresser all packed into the room. This is a common setup in these bedrooms.

The third picture is of one of the SRO bedrooms. As you can see it is packed with stuff. Another thing to note is the amount of electronics plugged in. Here we see an AC unit, mini fridge, TV, and fan. Multiple this by however many bedrooms there are, and we have a huge electrical hazard. Many of these rental properties are older homes and do not have updated electrical systems or service this is something to keep in mind when going on investigations in these types of properties. Areas like kitchens and bathrooms generally remain unchanged and are shared amongst the renters, but again can be cluttered and unkept. All of which makes searching and advancing handlines more difficult.

Another thing to note is within these rentals there is usually a locked area which is the landlord’s space that the renters do not have access to. Typically, this is the basement or utility rooms. This allows the landlord to have storage space as well as keeps tenants from being able to access the buildings utilities. This being said, gaining access to the building’s utilities may not be easy and interior doors leading to the basement, attic or utility rooms may be locked and have a higher level of security than one would expect. Taking all of this into account is important when responding to incidents at these occupancies. Being aware of the obstacles one might encounter on the interior not only increases firefighter safety, but more importantly civilian survivability. Knowing you will encounter multiple locked interior doors, atypical layouts and high life hazards are all important in making tactical fireground considerations.

William Morrissey has 14 years of fire service experience and is a career firefighter with the Arlington Fire District (NY). He began his career as a volunteer with the Washingtonville (NY) Fire Department. Morrissey is NY State Fire Instructor and New York State certified code enforcement official and has a bachelors is psychology.

Forcing Trident Security Doors

Higher capacity security doors are becoming more and more prevalent in all commercial and now residential homes for maximum break-in protection. The Trident Multi-Point lock provides a multipoint deadbolt locking mechanism with maximum resistance to break-ins. Here's the breakdown of the Trident system. 

  1. Instant self-locking deadbolt protection on each close or manual locking

  2. 4-point locking system

  3. Anti-pry protection

  4. Maximum door reinforcement kits - door strengthening bars and lower module reinforcement kit

As firefighters sometimes our jobs are going through the door in order to perform our interior fire operations and it is imperative we have an understanding on how to force this type of door should we have no other option or this is our best option for a quick knock on the fire or a rescue effort.

Let’s force the door 

All hand tools approach - IRONS - Method 1 

  1. Starting on the hinge side, using the Adz end of the halligan, gap/crush the door to gain access to the backside of the door by placing the Adz behind the door and begin prying the standalone pin away. By getting the standalone pin out of the way early on will help with the conventional door pop.

  2. Now, attack the lock side of the door starting with the top pin followed by the bottom pin and pry them away.

  3. From here, once the three pins have been pried away, force the center of the door conventionally.

Please note, this will be time consuming and energy depleting. Have a K-12 or spreaders on hand if need be.

All hand tools approach - IRONS - Method 2

  1. Attack the lock side of the door by gaping and crushing the door and start by prying away top pin followed by the bottom pin.

  2. From here, once the two pins have been pried away, force the center of the door conventionally.

  3. The door should go and entry can be made.

From my experience, these doors have been found mostly on rear pharmacy doors and other businesses with highly valuable goods. The best way to approach these doors is to study their makeup and understand their strong and weak links in order to force them in less time and reduce the amount of strain on the crew forcing the door.

Keep your eyes open and stay diligent out there. 

Until next time, work hard, stay safe and live inspired.



Food Trucks and Firefighting Concerns

For decades food trucks and food carts have been service food to people on street corners, carnivals and events all around the world. In today's world, food trucks and food carts are popping up everywhere. From birthday parties to school and work functions you name it and a food truck is probably there serving food. These carts or trucks are known as Mobile Food Preparation Vehicles or MFPV for short. Some are trucks designed to house a kitchen setup and others are trailers pulled by a truck or SUV. Either way both serve the same purpose, preparing food for customers.

 

These trucks provide a unique set of challenges for firefighters and provide a few hazards that commonly scene when fighting vehicle fires.

 

We are very well aware that cooking is the leading cause of accidental fires in the United States with respect to residential fires. With respect to commercial occupancies, these structures are more well equipped to handle the potential of an accidental mishap in the kitchen. Commercial kitchens mitigate the risk through hood suppression systems over their cooking appliances such as ovens, burners and grills. The same goes for MFPVs…but not exactly.

 

The newly designed, custom-built food trucks will be equipped with hood suppressions systems however the older retro-converted trucks may not be as equipped. Making the workers not as fortunate should an accidental kitchen fire breakout. In all cases, all MFPVs will be equipped with portable fire extinguishers to suppress kitchen fires from grease, fat and cooking oils.

 Propane Tanks

The most significant risk of fires to MFPVs are propane tanks. According to the NFPA, 68% of food truck fires are related to leaks or failures in the propane tanks themselves. Propane is used in various ways with respect to food trucks. For one, they're used as fuel for cooking and possibly refrigeration.

 

While propane is generally safe to cook with, a small 20-pound cylinder on a backyard grill has the explosive equivalent to 170 sticks of dynamite. MFPVs can carry around 100-pounds of propane cylinders at a time in order to be efficient and produce food services to customers. One hundred pounds of propane is capable of producing more than 2.6 million BTUs (British Thermal Units). One food truck carrying that amount of propane can generate 6 times more energy from an exploding propane tank than a backyard grill using a 20-pound propane tank.

 

Since these trucks are constantly moving from place to place, the risk of a propane failure can increase. This is due to the trucks driving on bumpy terrain or hitting potholes. Both of which can loosen the connections and fittings or cause structural damage to the tank. With respect to air, propane is heavier. In fact, propane is 1.55 times heavier than air which causes it to sink. Thus, causing a pooling effect near the floor should a tank leak. Because of this, a single spark from the cooking appliances has the potential to ignite the gas.

 

Many trucks carry spare tanks or have their current tank fitted to the outside of their MFPV which decreases the risk of leaks inside the unit. The risk this does carry is tank explosions from minor collisions on the roadway or single vehicle accidents.

 Generators

Older MFPVs are more likely to pose a risk with the use of portable generators. These are used to run electricity to the truck. Older MFPV's or converted ones could possibly lack the proper ventilation of the off gases from the generators which raise the risk of carbon monoxide emergencies in the mobile unit. 

 Past Incident

On July 1, 2014, in the Feltonville neighborhood of Philadelphia, a leaking propane tank ignited and exploded. The truck operator and her daughter were severely burned and died three weeks later. An additional 10 others were injured as a result of the blast.

 

Since then, the NFPA has made changes to NFPA 1 and NFPA 96. The leaders at the NFPA concluded that an easily adopted national standard would go a long way in increasing the number of communities with comprehensive food truck safety regulations.

 

These standards and changes can be found at the links below:

 

https://www.nfpa.org/news-and-research/publications-and-media/blogs-landing-page/nfpa-today/blog-posts/2018/11/21/nfpa-1-requirements-for-commercial-cooking-equipment-and-updates-from-nfpa-96-firecodefridays-wednesday-edition

 

https://www.nfpa.org/codes-and-standards/all-codes-and-standards/list-of-codes-and-standards/detail?code=96

 

Until next time; work hard, stay safe & live inspired.

The Importance of Fire Behavior

It has been said time and time again, "You can never train too much for a job that can kill you." As we are aware, firefighting has many aspects to it. Many of these are common to every fire department, no matter their location, size, or status (career or volunteer). Other aspects are specialized areas that not all departments focus on or specialize in, such as medical, hazardous materials or technical rescue. In any case, having a sound basis in the area of “firematics” is a steppingstone to success for yourself and for your crew. We will briefly touch on key areas every firefighter should have a sound understanding and strong knowledge of. Many of these areas are touched on briefly in probationary/training school and then oftentimes, pushed aside once graduated. However, these areas are the core foundation for everything we do as firefighters and lay the groundwork for everything else we do on the fire ground. The skills of understanding these concepts, terminology and definitions is in fact, simple in theory. The difficult area is understanding the strategies and tactics behind them in order to implement those them. All good leaders and firefighters must understand these core areas of which everything else it built from. 

The areas I would like to briefly touch upon are building construction, fire behavior, reading smoke and size-up.

Building Construction

In the American Fire Service, there are five and oftentimes six different types of building construction however this may be different in various parts of the world based on the materials used to build structures. As firefighters, it is imperative that we know our enemy and know everything we can about it. Without having at least an understanding of our enemy, it becomes difficult to defeat it. In most every one of our cases, the enemy is the building structure. In order to be a successful firefighter in any capacity, on any apparatus, in any area, understanding and having a solid foundation of building construction knowledge is vital. Just as a world-class fighter study their opponent in the months leading up to a fight, us as firefighter MUST study our buildings in our areas, so we too are prepared to fight…and WIN. 

The most vital piece of information I can provide here is simple. It makes a difference in knowing the different type of structures and how to identify the differences however, what make it even more important is the ability to identify the types and how thewy will react under fire conditions while in the moment! This leads us to fire behavior. 

Fire Behavior

Fire behavior is the foundation on which all firefighter knowledge is built upon. Moreover it is our understanding of fire behavior from which we can gain an understanding of fire and how to suppress it properly. The lack of fire behavior knowledge creates an even greater risk for serious injury or death. Understanding fire behavior is truly being able to operate as a firefighter. The understanding of fire behavior is the basis for understanding fire suppression and the understanding how to properly perform other tactics such as ventilation, forcible entry on some occasions and overhaul.

As society changes or in many cases evolves, so does fire behavior. The reasoning behind this is simple - the introduction and presence of synthetic materials (also known as plastics). These materials in their solid form are petroleum- based products, therefore producing an increase in the output of thermal energy. This reasoning alone is a cause for a more rapidly spreading fire regardless of the type of structure it is in. More so than not, it is causing our enemy (the building) to have more fuel to hurt us. To understand fire behavior, it is important to understand the phases that come a long with it and it’sattributes – ignition, growth, full developed (flashover is present) and decay (back draft is likely). To understand these areas takes years of studying and training to become proficient but have the basic concepts down is a great start to proficiency in fire behavior for firefighters of all levels and experience.

With fire comes smoke. 

Reading Smoke 

An important aspect on the fireground for many reasons is understanding smoke and smoke behavior. Many clues from the smoke alone can help identify the location and status of the fire. Command and company officers, as well as firefighters, need to be able to read and interpret all of the clues while conducting their size-up upon arrival and throughout the incident.  

Here are some clues to take into consideration: potential fuel, density, color, velocity, and volume

Smoke is fuel. In today's world and the modern-day fire service, the products of combustion are highly toxic, flammable and potentially explosive. The smoke’s chemical composition is different at each fire due to the different fuel sources yet, one thing remains the same; smoke contains high levels of carbon monoxide.

Density identifies the thickness of the smoke, it’s level of energy and if there is a potential for a flashover or for fire spread. 

Color tells you how flammable the smoke is and what is burning.

Velocity tells us how fast or slow the smoke is moving and by doing so helps determine the location and its flow path. 

Volume on the other hand doesn’t speak to firefighters about smoke or fire but it does give firefighters the amount of fuel that is burning. By knowing how much fuel is burning, provides insight to the size and intensity of the incident.

Understanding smoke provides the fundamentals for reading and identifying changes in fire and smoke conditions in the interior or exterior of a structure, along with identifying and possibly preventing flashover or fire spread. 

Size-Up

The size-up is for all intents and purposes, our game plan or battle plan, if you will, against the structure we are working at. The size-up is where firefighters and fire officers gather information in order to make safe, efficient, and effective fireground decisions. Fireground decision making, as we know, is meant to be quick, but with an emphasis on safety and ensuring the tactics are done efficiently and effectively. This is done in three phases; the pre-incident size-up, the on-scene size-up and the after action review. All three of these have their purposes.

Pre-incident size-up allows firefighters to gather as much information as we can about the structure and in contents inside and helps guide our on-scene strategies and tactics. 

On-scene size-up is where firefighters utilize our pre-incident size-up and put it to work. This size-up is where more information is provided specific to the incident and can now confirm our findings from the pre-incident size-up. Further, this is where company operations are assigned and take place.

 After-action-review is the final stage in the pre-planning process. This is the time for firefighters and officers to discuss and share the information obtained and to discuss the success and failures experienced at the incident. It is also a time to ask a few key questions. 

• What did we expect to happen?

• What actually occurred?

• What went well and why?

• What can we improve upon and how?

The benefit of asking these questions allow for strengths to be easily identifiable and make it easier to uncover areas of weakness. By uncovering areas of weakness, you can develop ways to improve them! 

In closing, I’d like to leave you with this piece of advice. If we think of firematics as an orchestra and each piece getting broken down into sections, we can identify each area as its own unique piece yet, an integral piece to the orchestra as a whole. With practice, each section sounds in harmony and sync with one another, but without practice or even a section missing, the harmony and synchronization doesn’t happen. This is the same for firematics, you cannot have one without the others.

For further information on these topics, you can refer to my book, “The 5-Tool Firefighter” where these concepts are laid out in greater detail along with other areas of interest to guide all firefighters on their journey to success.

Until next time; work hard, stay safe and live inspired.

 

 

Solar Panels: A New Addition to Today’s Fire Service Enemy

In a 24 hour period the sun produces enough energy to supply our planet for over four years. That’s 1,460 days of solar energy the planet received in just 24 hours. Solar energy is everywhere and the advancements in it are growing and for many reasons. It's renewable, pollution free and cuts costs of other energy sources. What's this mean for firefighters? Well it means a lot. Solar panels are popping up all over buildings and on plots of land like never before. We're noticing this by a simple placard found on the commercial structures that are now using solar energy with the letters "PV" on it. 

 “PV" which stands for photovoltaic is the method of converting solar energy into direct current electricity (DC) using semiconducting materials that exhibit the "photovoltaic effect". The "P" which stands for photo (light) and the "V" which stands for voltaic (electricity), this of which it bears its name. The PV effect is the creation of voltage or electric current in a material when exposed to light. 

In today's society, solar panels are everywhere just like truss construction is everywhere. Thus creating a need for firefighters to be aware of the dangers and understand how to attack fires with PV systems. 

For firefighters to be safe and operate efficiently on the fireground, there are a few critical steps we must take to ensure the solar panels are accounted for and in check. Do not begin fire suppression until these first 2 steps have been completed.

  • 360 Size-up: This is a no-brainer. By performing a 360 size-up upon arrival, firefighters are able to possibly locate the panels or the energy storage system (ESS) if the panels are on the roof or an area without access to at the time. Most of the time depending on jurisdictional building codes, the ESS panels are located on the exterior of the structure normally near the utilities, the garage or the basement, should the structure have one.

  • Treat this as an electrical fire and turn off the systems starting with the utility grid. The main breaker box will activate the backup battery and run the risk of electrical shock to interior firefighters in the structure. If the battery is located in a confined space in the structure and exposed to heat above 150 degrees Fahrenheit, it is imperative that ventilation of that space begins.

Once the size-up has taken place with the panels and/or ESS located along with fire suppression taking place, ventilations needs to begin. However, firefighters and command need to understand that if the panels are located on the roof and are burning, there is a potential for collapse based on the volume of fire around the panels and on the roof. 

 When performing ventilation, especially vertical ventilation, firefighters must recognize that electricity is being produced by the panels 24 hours a day. 

  • Once these steps have taken place, fire suppression can now continue. As a safety precaution, firefighters should try and extinguish the fire at a minimum of 20 feet away when using a straight stream or a minimum of 5 feet when using a fog pattern.

  • After the fire has been knocked, overhaul can begin - carefully.

Panel safety

Firefighters should be careful not to touch any of the panels in case of any damage done to them during the fire. Instead, firefighters should cover the panels with canvas tarps, especially at night due to no sunlight exposure to them. The reason panels should be covered during night operations is due to the wires running through the conduit to the charge controller or inverter which continues providing the panels power. 

Battery safety

If the battery was the source of the fire, continual water flow to the extinguished battery is important to keep the battery cool and from the possibility of obtaining a chemical reaction causing a thermal runaway. Should a thermal runaway occur, the temperature inside the battery will reach the point that causes a chemical reaction inside the battery. This reaction produces more heat and drives the temperature of the battery higher, causing further chemical reactions and more heat. In thermal runaway, the battery cell temperature will rise in milliseconds and release suddenly. The chain reaction will reach temperatures of around 752 degrees Fahrenheit and produce gassing of the battery along with fire. 

Burns tests have shown that lithium-ion batteries can produce these chemical reactions 72 hours after extinguishment. 

 As technology changes, firefighters need to be educated and trained on all of the new advancements in the market today. By doing so, firefighters can continue to develop a proactive approach to new technology when responding to incidents. Solar panels may not be completely new to us but the growth of them in residential and commercial structures has rapidly increased over the years. Today, it is nearly impossible to not catch a glimpse of solar panels on almost every street across the country. Stay diligent to the advancements in the world and continue to keep training and getting after it.

 Until next time; work hard, stay safe & live inspired.