firefighter

/Tag: firefighter

Do You Know The Danger of Cold Smoke?

2018-07-16T15:08:07+00:00

Firefighters need to be aware of the importance of fundamental search methods and the limitations of thermal imaging cameras. There are several TIC manufacturers that falsely advertise that their brand of TIC will “see” through steam. This is inherently dangerous and a false statement for them to spread because in many cases the TIC will not be able to see through dense steam, cold smoke situations (created by sprinklers), or high moisture content environments. Why can’t a TIC see through steam/moisture? First of all, TIC’s don’t “see” through anything. A fire service TIC detects long wave infrared radiation (LWIR) which is [...]

Do You Know The Danger of Cold Smoke?2018-07-16T15:08:07+00:00

Watch out for Mode Confusion

2017-10-10T08:40:31+00:00

Thermal Imaging Mode Confusion:   Firefighters need to be aware of when the camera switches modes and the color ranges associated with it. TIC's have modes based upon sensitivity which are typically high, medium, and low. For example, one camera switches from high sense mode at 350 degrees Fahrenheit while another switches to low sense mode at anything over 200 degrees Fahrenheit. How fast it changes especially if we are staying locked in on the same focal point should alert us to a rapid progression of the fire this impending flash-over. For example, a given reaction will increase its rate 100 [...]

Watch out for Mode Confusion2017-10-10T08:40:31+00:00

The Power of Enhanced Stream Placement

2017-10-09T17:28:01+00:00

In our recent training at Ottawa Fire, Shawn Bloemker and I instructed firefighters on the value of enhanced stream placement. This is one of many concepts that Project Kill the Flashover advocates in our Tactical Thermal Imaging Program. The video above shows the stream being directed by the TIC at our training at Monroe Fire Department (video courtesy of a FLIR K65) In this short video below (video courtesy of Bullard LDX), one can see the moving convection heat currents over the firefighters head that are often missed due to zero visibility. This can be compared to being in [...]

The Power of Enhanced Stream Placement2017-10-09T17:28:01+00:00

The Danger of the Spot Temperature

2017-09-23T21:46:53+00:00

In traveling and teaching our curriculum, we continue to see a dangerous trend in TIC use. Many firefighters only read the numerical temperature reading in the lower right corner of the view finder otherwise known as the "spot temperature" or direct temperature measurement. This is a very dangerous issue. Here is why: The spot temperature is a numerical representation of the average of a certain amount of pixels within the focal point (or cross hairs) at a preset distance set by the manufacturer. This spot temperature is NOT an accurate representation of the overall environment. As you can see in the [...]

The Danger of the Spot Temperature2017-09-23T21:46:53+00:00

How Do Firefighters Measure Heat?

2017-09-20T23:03:15+00:00

How Do Firefighters Measure Heat? Today’s thermal environment of higher heat release fuels demands a diagnostic tool that allows firefighters to prevent thermal insult, identify and locate the fire’s severity, and locate any victims or firefighters in danger more quickly than ever before. And those who advocate that firefighters should wait to feel the heat to indicate their level of safety should read and remember the following: The equipment we use to protect ourselves or work in these superheated environments are designed to operate at only a Thermal Class III for a maximum of five minutes which equates to 500 degrees [...]

How Do Firefighters Measure Heat?2017-09-20T23:03:15+00:00

Ever read the instructions on your turnout gear?

2017-09-20T22:40:12+00:00

Ever read the instructions on your turnout gear? The following quotes come directly from Fire & Emergency Manufacturers and Services Association (FEMSA) User Information Guide which comes with every brand-new set of Firefighter Protective Garments. The following information should be read and understood by all firefighters.  “If your protective ensemble is exposed to radiant, convective, or conductive heat, you may be burned underneath with no warning and no sign of damage to the protective ensemble. Be constantly alert to the possibility of exposure to radiant, convective, or conductive heat and other hazards” (FEMSA User Guide p. 2-4). “Burns are a [...]

Ever read the instructions on your turnout gear?2017-09-20T22:40:12+00:00