Identification of technical condition of the overhead power line supporting structure

Szopa, Krystian; Iwaniec, Marek; Iwaniec, Joanna

doi:10.17531/ein.2019.1.13

Cited by 6 publications

(2 citation statements)

References 15 publications

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“…The reliability of safety systems is fundamental for human society and all civilisations [32]. Random events, the outcome of which humans cannot unequivocally predict (adverse effects) [45], are the determinants of rescue services' actions.…”

Section: Introductionmentioning

confidence: 99%

Failure and reliability analysis of heavy firefighting and rescue vehicles: a case study

Selech,

Rogula-Kozłowska,

Piątek

et al. 2023

Eksploatacja i Niezawodność – Maintenance and Reliability

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The purpose of the article was to analyse the reliability, maintainability, and availability estimates of firefighting and rescue engines. Analysing the reliability parameters of heavy firefighting and rescue vehicles over time requires knowledge of their failures. In this article, failure data from the six years of maintenance of ten heavy firefighting and rescue vehicles from ten were analysed in relation to two main subsystems. Reliability analysis was performed and the best-fit distribution was found, with the parameters calculated. For both subsystems, the chassis combined with the cabin and the superstructure, the 2P-Weibull distribution was identified as the most suitable fit. The availability and maintenance indicators for each vehicle and the individual subsystems were calculated. It was clearly defined that there exists a significant difference between the two subsystems analysed in terms of failure characteristics, as well as maintainability and availability parameters.

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Section: Introductionmentioning

confidence: 99%

Failure and reliability analysis of heavy firefighting and rescue vehicles: a case study

Selech,

Rogula-Kozłowska,

Piątek

et al. 2023

Eksploatacja i Niezawodność – Maintenance and Reliability

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“…Railway signalling systems become more and more complicated and complex. The overarching aim at the designing stage is to automatize work in order to eliminate human errors in the signalling process [1][2][3][4]. Therefore, technical problems are a significant problem of safety and risk analysis.…”

Section: Introductionmentioning

confidence: 99%

Method for Selecting the Safety Integrity Level for the Control-Command and Signaling Functions

et al. 2019

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The purpose of the article is to present selected method of risk assessment of railway control and signaling systems, including current normative and legal bases, such as directives and regulations that regulate the interoperability and safety of the railway system. Selected methods used at the initial stage of creating safety requirements and referring to the initial definition of the system defined at a high level of abstraction are considered. Issues of holistic approach and residual risk management are also discussed. Risk models are presented as well as individual steps of risk analysis, evaluation, and assessment, including hazard identification, impact analysis, and selection of the risk acceptance principle. Selected model based on hazard and operability studies (HAZOP) and an adapted risk graph was applied to the real signalling equipment. The key aspect undertaken in the article is the proposal to set quantitative safety objectives based on the safety integrity level/tolerable hazard rate (SIL/THR) indicator, as an important parameter in further analysis of the system, especially in computer applications. The result of study showed that application of proposed combination HAZOP and adapted risk graph method are efficient and suitable for a railway signalling application. The results and conclusion are presented in Chapters 4 and 6 of the article.

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Determination of the Conductor Sag According to the Period of Own Harmonic Oscillations, Taking into Account the Difference in Heights of the Suspension Points

Yaroslavsky¹,

Nguyen²,

Sadykov³

et al. 2022

Lecture Notes in Mechanical Engineering

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Identification of technical condition of the overhead power line supporting structure

Cited by 6 publications

References 15 publications

Failure and reliability analysis of heavy firefighting and rescue vehicles: a case study

Failure and reliability analysis of heavy firefighting and rescue vehicles: a case study

Method for Selecting the Safety Integrity Level for the Control-Command and Signaling Functions

Determination of the Conductor Sag According to the Period of Own Harmonic Oscillations, Taking into Account the Difference in Heights of the Suspension Points

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