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Bezpieczeństwo i higiena pracy przy modernizacji maszyn i urządzeń użytkowanych w podziemnych wyrobiskach zagrożonych wybuchem (Część III)

Kowol A.

Bezpieczeństwo Pracy i Ochrona Środowiska w Górnictwie

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2013

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nr 12

24--30

PL

Artykuł przybliża kwestie związane z problematyką odkrywania zabytków przez Realizacja procesu modernizacji obejmuje zdefiniowanie nowych funkcji dla wyrobu, dobór środków technicznych, ocenę i analizę ryzyka po wprowadzeniu zmian i – w efekcie – ocenę wyrobu na zgodność z obowiązującymi wymaganiami. Stanowią one etapy tego procesu. Określenie zasad modernizacji maszyn i urządzeń wraz ze wskazaniem schematów postępowania stanowią wytyczne postępowania przy projektowaniu zmian i realizacji modernizacji.

EN

The ongoing pursuit of occupational health and safety improvement, with the concurrent technical and technological progress, force periodical and permanent changes in regulations and technical standards. This, in turn, results in the manufacturers improving their products to constantly raise the level of safety in the workplace. The modernisation process, due to its impact on the user, requires the formulation of rules warranting the safety of the employee and the workplace to the employer. Machines and equipment modernisation algorithms are designed to provide such a warranty. The basis for these algorithms is a general modernisation procedure, which shows the ways available to the modernisers, depending on who they are in relation to the modernized product and what are the technical specifications of the product. The general modernisation roadmap presents appropriate paths for both manufacturers and clients, with an additional division to respond to the specificity of an underground mining plant. Separate algorithms dedicated to the manufacturer and the user will mirror the privileged position of the former in the modernisation process. The needs of the user, on the other hand, are usually typical signals that modernisation is needed, but its range must be limited if compared to the possibilities available for the manufacturer, due to the lack of the design documentation. A sort of distinction of a product used in a mining plant is presented in the approval for use in mining plants procedure.

2

Shock safety modelling of indirect contact with low-voltage electric devices

Korniluk W., Sajewicz D.

Archives of Electrical Engineering

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2011

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Vol. 60, nr 3

303-315

EN

The article presents a shock safety model of an indirect contact with a low-voltage electric device. This model was used for computations and analyses concerning the following: the probabilities of appearance of the particular shock protection unreliability states, electric shock states (ventricular fibrillation), contributions of the unreliability of different shock protection elements to the probability of occurrence of these states, as well as the risk of electric shock (and the shock safety), and contributions of the intensity of occurrence of damages to different shock protection elements to this risk. An example of a possibility to reduce the risk of an electric shock through changing the intensity of occurrence of damages to the selected protection elements was provided.

3

Shock safety modeling method for low-voltage electric devices

Korniluk W., Sajewicz D.

Archives of Electrical Engineering

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2010

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Vol. 59, nr 3-4

153-167

EN

The article describes a shock safety modeling method for low-voltage electric devices, based on using a Bayesian network. This method allows for taking into account all possible combinations of the reliability and unreliability states for the shock protection elements under concern. The developed method allows for investigating electric shock incidents, analysing and assessing shock risks, as well as for determining criteria of dimensioning shock protection means, also with respect to reliability of the particular shock protection elements. Dependencies for determining and analysing the probability of appearance of reliability states of protection as well as an electric shock risk are presented in the article.

4

Wybrane zagadnienia analizy bezpieczeństwa funkcjonalnego programowalnych systemów sterowania i zabezpieczeń instalacji procesowych

Barnert T., Kosmowski K., Śliwiński M.

Bezpieczeństwo Przemysłowe

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2009

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T. 3

121-128

PL

W artykule przedstawia się wybrane zagadnienia analizy bezpieczeństwa funkcjonalnego programowalnych systemów sterowania i zabezpieczeń w instalacjach technicznych podwyższonego ryzyka. Analiza obejmuje określanie wymaganego poziomu nienaruszalności bezpieczeństwa SIL (zdefiniowanych funkcji bezpieczeństwa na podstawie analizy zagrożeń i oceny ryzyka) oraz weryfikację tego poziomu dla rozważanej architektury systemu elektrycznego, elektronicznego i programowalnego elektronicznego (E/E/PE) lub SIS.

EN

This article presents some aspects of functional safety analysis of the programmable control and protect systems in the safety critical installations. This kind of analysis contains a determination of required level for the safety integrity SIL for defined safety function on the basis of hazard analysis and risk assessment as well as verification of this level for the electrical/electronic/programmable electronic system (E/E/PE) or SIS architecture considered