Improving the justification of the choice of technical solutions for the fire safety system of the protected object based on the specific mass fraction of burning for substances and materials

Introduction. In order to modernize the legislation in the field of fire safety, it is important to identify existing requirements that are outdated and/or redundant, in order to correct them. It is also important to expand the application of the existing mandatory classification system for various protected objects and substances and materials that can be a fire hazard. The most important areas of normative activity in the field of fire prevention are the development, modification, harmonization, and updating of mandatory and “voluntary” requirements based on the research of the regulatory framework governing fire protection requirements for industrial facilities, as well as the scientifically based selection of their application areas.

Goals and objectives. The purpose of this study is to improve the selection of the most effective and rational technical solutions for building a fire safety system for a protected object based on a broader use of the characteristics of the materials and substances used on the object, as measured by the specific mass rate of combustion. The objectives of the study include: justifying the need to clarify the initial characteristics of the materials and substances used on the protected object that affect the selection of elements in the fire safety system; justifying the use of the specific mass rate of combustion as a criterion for selecting rational technical solutions in the fire safety system; and proposing a sequence for developing a fire safety system based on the expanded consideration of the proposed criterion.

Аnalytical part. The practical examples substantiate the need for a more extensive use of the physical and chemical properties of combustible substances and materials that affect the choice of fire safety system elements. The expediency of using the specific mass rate of combustion for rational technical solutions in the fire safety system is shown. The sequence of developing a fire safety system based on the extended consideration of the proposed indicator is proposed.

Conclusions. Thus, the prerequisites for improving the existing mandatory fire-technical classification system are shown to establish objective fire safety requirements that take into account all the features of the protected object. The tools allowing the use of the criterion of the specific mass burnout rate are proposed. An approximate decision-making algorithm is described for choosing the most optimal elements of a fire safety system depending on the specific mass burnout rate.

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