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Aslamova V. S., Frolova E. Yu. Upravlenie mikrosherokhovatost'yu v tekhnologii vosstanovleniya izolyatsionnykh pal'tsev kollektornykh tyagovykh elektrodvigatelei [The system analysis of the causes of fires in the locomotives of JSC “Russian Railways”]. Sovremennye tekhnologii. Sistemnyi analiz. Modelirovanie [Modern Technologies. System Analysis. Modeling],   2018.   Vol. 60, No. 4, pp. 63–70. DOI: 10.26731/1813-9108.2018.4(60).63-70

Journal number: 
614.8(075.8) + 614.8.084


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The article substantiates the relevance of the work and considers the state of fire safety in locomotives according to statistical data for the period of 2008-2017 and 7 months in 2018. It is established that fires in diesel locomotives occur more often (in 59.6% of cases) than in electric locomotives. The series of diesel locomotives and electric locomotives most frequently exposed to fires are determined. Pareto diagrams are used to identify the locomotive components that initiated the fire. The authors performed a system analysis of causes and contributing factors of the fires in the locomotives. It is revealed that the significant nodes for the diesel locomotive are: diesel engine (37% of fires), electric control circuits (22%) and power electric circuits (15%); and the substantial ones are traction motor (5%) and the main generator (4%). Significant nodes for the electric locomotive are: power electric circuits (40%), traction motor (18%), electric control circuits 10%), smoothing and transient reactors (5%) and other reasons (6%), and the substantial ones are an external source of ignition (4%), auxiliary machines (3%) and switching equipment (2%).

Others include the following causes of fire: intrusion of a foreign object on the electric heating of the driver's cab; intervention of the locomotive crew in the regular operation of the electric circuit by wedging the contactors KV, BB in order to exclude the ROP, RZ, RB protection devices from operation; lack of control of the left in the cab household heater; atypical connection of the adjusting rod with a separating metal partition; the drop of an atypical mounting part in the form of a metal ring into the lower part of the fan snail with the touch of the wheel and the formation of a spark; sparks hit the wooden flooring of the hand brake column from the interaction of the brake pads and the bandage of the first wheel pair because the brakes have not been released; leaving the solid fuel metal furnace unattended, etc. It was noted that 83% of the total number of fires were caused by faults of 42% of the equipment.

The Statgraphics Plus application package was used to process fire statistics. Regression models with determination of coefficients of 95-97% were obtained to predict the number of fires, the equipment of burned locomotives with fire alarm and fire extinguishing systems (FAS and FES), the number of unused fire extinguishing systems in case of fire among the locomotives equipped with FAS and FES.

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