Assessment of the professional risk of repeated switching on of the breathing
apparatus by firefighters when planning fire extinguishing actions
Authors:   Ivanovo Fire and Rescue Academy
            of State Fire Service of EMERCOM of Russia, Shalyavin Denis Nikolaevich , Semenov Alexey Olegovich ,   Ivanovo Fire and Rescue
            Academy of State Fire Service of EMERCOM of Russia, Tarakanov Denis Viacheslavovich ,   Academy of State Fire
            Service of EMERCOM of Russia, Gabdullin Vladislav Bulatovich ,   Academy of State Fire
            Service of EMERCOM of Russia
Published: December 2024

Introduction. The article proposes a software package for managing professional
risks when organizing repeated activations of the breathing apparatus by firefighters as
a tool for planning fire extinguishing tactics. A factorial experiment was conducted to
assess the influence of performance indicators and load repetition on the functional
state of firefighters. Using the data obtained in the process of conducting a factorial
experiment, the work of the proposed software complex is shown using the example of
solving a fire-tactical problem. Goals and objectives of the study. To develop a
criterion for assessing the professional risk of repeated switching on of the breathing
apparatus by firefighters when planning fire extinguishing tactics. Research methods.
The study used methods of system analysis, probability theory, mathematical statistics,
testing and experiment. The obtained empirical data were interpreted and processed using
qualitative and quantitative methods of analysis, including: descriptive statistics,
Fisher's test of statistical agreement. Regression analysis methods were used to
build models. Calculations were made using the Excel statistical software package.
Results and their discussion. In the course of the study, an array of coefficients of
the factor model of the initial average time of state dynamics was obtained. The
software package analyzes the developed options for repeated switching on of the
breathing apparatus by firefighters under given conditions with variations in work modes
and the numerical composition of the gas and smoke protection service units. An
assessment of occupational risks is given according to the parameters
"Possibility" and "Ability" for each of the developed options for
restarting the breathing apparatus by firefighters. Depending on the level of
performance, the software package has been used to determine the most preferable options
for restarting breathing apparatus by firefighters in the process of extinguishing a
fire. Conclusion. The proposed software package will improve the quality of planning
fire extinguishing tactics using repeated activations of the breathing apparatus by
firefighters. This will be achieved by introducing automated means of calculating time
indicators of optimal work and rest regimes into the process of planning fire
extinguishing tactics when firefighters repeatedly turn on the breathing apparatus.
Using the risk assessment scale for the ability to implement repeated activations of the
breathing apparatus by firefighters in the software package, it is possible to visually
predict the degree of danger of performing work. Keywords: firefighter; working
capacity; recovery time; operating time; physical activity; repetition of work; risk
assessment; planning of extinguishing tactics.