PLACE OF PROTECTION SYSTEM AGAINST LIGHTNING AND STATIC ELECTRICITY IN FIRE RISK ASSESSMENT METHODOLOGY AT PRODUCTION FACILITIES

Abstract

Purpose. The authors of the article draw attention to the explicit lack of such probable sources of combustible medium ignition as static electricity discharges, a direct lightning strike, as well as the impact of secondary factors of lightning (electrostatic and electromagnetic induction) in the Methodology for determining the estimated fire risk values at production facilities of. Methods. Statistical analysis methods: data assembling and grouping statistical observation materials; sampling; correlation and regression analysis, etc. have been used in the study. Findings. The article considers the established practice of determining the fire risk values and contradictions have been found between the Methodology for determining fire risk values at production facilities and the Technical regulations on safety of buildings and structures. The statistics analysis of fires caused by lightning and electrostatic discharges and the experience of other countries have made it possible to conclude that an additional coefficient should be introduced when calculating fire or explosion probability from the degree of compliance with lightning protection requirements. The authors draw attention to the problem of a risk-oriented approach – focus on the calculation result, which has an impact on ensuring fire safety. Research application field. It is advisable to include the results of the study in the scientific-research and development work of scientific-research organizations of EMERCOM of Russia and other ministries and departments. The materials can also be used when discussing the procedure for applying the risk-oriented approach to the control and supervisory activities in the Russian Federation. Conclusions. Failure of taking into account the state of protection against lightning and static electricity when calculating the fire risk of the facility reduces the reliability of the assessment for participants in the fire safety provision system.