In comparing with internal fire pipeline (IFPL) used from the 19^th century, only traditional hardware of IFPL was updated, but design regulations for traditional IFPL and technology of fire hydrant using were permanent. In current set of rules 10.13130.2009 are mainly traditional IFPL requirements given but class of structural fire danger of different building types and their function are not considered. In the project of the updated version there are considered main regulations of the new edition of set of rules 10.13130, fire hydrant parameters of a new generation (low-consumed fire hydrants, including of water mist), dry pipes, fixed monitors are described, the algorithm for calculating the distance between fire hydrants is recommended; nomenclature of obligatory operational documentation, developed by planning organization, is proposed; the main accepted criterion for the hydraulic regime of fire hydrant is not pressure at the stop valve, but the reactive force of the jet, dispersed from the hand-held branch. The new classification of IFPL is introduced according to structural features of its hardware, pipeline appliance etc. Some regulations are specified for application and extension of hardware nomenclature of IFPL (pump installations including submersible pumps, fire tanks, pressure and flow indicator, location indicator, nonmetallic pipes, fire detection- and automatic control system etc.).

The article analyze practical application of methods for calculation of fire risks for objects of different functional fire hazard classes. Specific proposals for their improvement were made, aimed at selection of effective design solutions (urban planning, design, space planning, networks and systems engineering and technical support, organizational and technical) to improve the fire safety of the object of protection, optimize costs, and minimize the number of remarks during the examination of projects documentation.

Subject of investigation (scientific study) - the photoignition of CH₃Cl + Cl₂ gas mixtures in the presence of carbon tetrachloride. The inflammation was initiated by radiation of mercury-quartz lamp of 1 kW. The experimentally determined value of the minimum phlegmatization concentration (MPC) CCl₄ was 33 % (vol.). The calculation of the MPC was based on the heat balance equation, in which the limiting (peak) adiabatic combustion temperature is the combustion temperature in the lower concentration limit of photoignition in the conditions of the first two fastest stages of the sequential substitution of hydrogen atoms by chlorine. The calculation was performed for an equimolar mixture of CH₃Cl + Cl₂. The resulting calculated value was 35.9 % (vol.), which is in good agreement with the experimental value. It is concluded that for the evaluation of the phleg-matization action of neutral (not participating in the chemical transformation) substances, the heat balance equation can be used. Based on this method the estimates of phlegmatizing concentration of hydrogen chloride are provided.

It is performed QSPR research in number of alkyl derivatives aminoethanol. It is shown possibility of applying the carbon rule for prediction physicochemical and fire-dangerous properties of aminoalcohols. Empirical relationships for prediction heat of vaporization (H_v), heat of formation (Hf), critical pressure (P_c), critical temperature (T_c), boiling point and flash point, lower and upper flammability limits (LFL, UFL) are found depending on number of carbon atoms (N_C): H_v = 1,55N_C + 37,95 (2 < N_c < 6 - 1^st type); H_f = 20,92N_C + 167,83 (2 < N_c < 11); P_c = 0,34N_C² -- 8,82N_c + 77,98 (2 < N_c < 11); T_c = 16,21N_c + 538,2 (2 < N_c < 11); TB = 0,81 N_c² + 34,39N_c + + 347,19(2 c < 11); FP = 0,34N_c² + 17,08N_C + 279,98 (2 c < 11); LFL = 0,07N_C²-0,89N_C + + 3,91 (2 < N_c < 11); UFL = 0,57N_c² - 7,77N_C + 33,6 (2 < N_c < 11). Flash point values of alkyl derivatives aminoethanol calculated by the ACD/Labs, HSPiP, ChemBioOffice 2012, Interstate standard 12.1.044-89* method.

Special attention in the paper is given to fire protection problems of forests and peat bogs, in particular, the development problem of new resource efficient techniques and methods of disaster relief. The causes of the forest and peat fires were considered and analyzed. The analysis of longstanding theoretical and experimental researches was carried out, and it was showed that up to 95 % of being dropped (not atomized) liquid is not actually used during the extinguishing of fires while passing through the flaming combustion area without evaporation). The expediency of special "water slug" preparation at large fire extinguishing using aircraft was determined. The analysis of modern and promising methods of extinguishing allowed to determine the usage practicability of interspaced in time and space polydisperse atomization of the extinguishing liquid compositions.

Key parameters of a model tank used for determination of efficiency of foam agents during suppression of fire of combustible liquids are determined. The interrelation between key parameters characterizing the thermal mode of burning is revealed. Analysis of experimental results shows the justice of assumptions that the size of a heat flow from a flame torch consists of doubled heat costs for evaporation of combustible liquid while burning.

Fire extinguishing efficiency of foam, produced from process solution of hydrocarbon and fluor containing foaming agent is reviewed. Superiority of film forming foaming agent with regard to such parameters of fire extinguishing as fire suppression time and specific flow rate is shown. Problem of fire suppression with multi-component foaming agents is shown. Experimental study to suppress hydrocarbon flame with foam, obtained from the solutions of surface active substances with various ratios of spreading coefficient was conducted. Experimental method to determine type of foam forming agent depending on superficial and interfacial tension of foam forming agent aqueous solutions isotherm values obtained on the border of air and hydrocarbon is reviewed. Spreading coefficients on which capability of foam forming agent solutions to form aqueous film on hydrocarbon surface depends which, in its turn, affects contact stability of foam on hydrocarbon burning surface is reviewed. Effect of model tank structure with the ability to circulate water in the interwall space on reproducibility of heptane flame extinguishing results is discussed. Results of extinguishing, conducted with the solutions of hydrocarbon and fluor containing foam forming agent, are shown graphically. Also there are shown curves, illustrating dependence of specific flow of foam forming agent, used for extinguishing a unit of heptane surface as well as curves describing characteristics of foam forming agent specimens used.