MODERN SAFETY REQUIREMENTS FOR INDUSTRIAL EQUIPMENT MANAGEMENT SYSTEMS (Part 2. Safety indicators of control systems)

Keywords: functional safety, risks, control systems, industrial equipment, safety integrity level.

Abstract

Purpose: Analysis and determination of the main modern international safety requirements that must be met in the design, development and operation of industrial equipment management systems, as well as confirmation of the need for further improvement of the domestic regulatory framework in this area. Methodology/approach: Performed analysis of the requirements of modern international standards (IEC 62061 and IEC 61508) on the safety of electrical, electronic and programmable electronic control systems for industrial equipment and the existing sequence of protection against hazards; the algorithm of step-by-step realization of control systems and the basic features of the organization of their structures at the level of functional blocks and subsystems for maintenance of necessary level of completeness of functional safety are defined; the peculiarities of the process of design and development of each of the subsystems and the algorithm of its execution are analyzed; defined algorithms for estimating the probability of dangerous accidental hardware failures for the recommended basic architecture of subsystems (type A, B, C and D) and for the control system itself; provided recommendations on the composition of the specification of safety requirements in the design of control systems; reviewed software requirements. Conclusions: The analysis of the features of functioning and application of modern international safety standards, which must be observed in the design, development and operation of industrial equipment management systems convincingly confirms the relevance and need for further improvement of domestic regulations in this area. Research results:  Modern requirements for the organization of the control system structure at the level of functional units and subsystems to ensure the required level of completeness of functional safety of electrical, electronic and programmable electronic control systems for industrial equipment are determined, as well as features of application the of algorithms for estimating the probability of dangerous accidental failures of control systems and their subsystems. Practical implications: The development and implementation of relevant national standards based on IEC 62061 and IEC 61508 should accelerate the further development of technical progress in Ukraine in the field of industrial safety. Originality/value: Defining the main features of the functioning of modern international safety standards, which must be observed in the design, development and operation of industrial equipment control systems; Appropriate recommendations for their practical application are provided; Substantiated and confirmed the relevance and importance of the development of relevant harmonized national standards based on the standards IEC 62061 and IEC 61508.

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Published
2021-12-30
How to Cite
Levchenko, O., & Kashtanov, S. (2021). MODERN SAFETY REQUIREMENTS FOR INDUSTRIAL EQUIPMENT MANAGEMENT SYSTEMS (Part 2. Safety indicators of control systems). Labour Protection Problems in Ukraine, 37(4), 8-18. https://doi.org/10.36804/nndipbop.37-4.2021.8-18