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| Format: | Artículo científico |
| Language: | en |
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Sociedade Brasileira de Proteção Radiológica - SBPR
2019
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| Online Access: | https://www.redalyc.org/articulo.oa?id=722280898003 |
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Table of Contents:
- Human reliability in non-destructive inspections of nuclear power plant components: modeling and analysis V. Vasconcelos W. A. Soares R. O. Marques S. F. Silva Júnior A. L. Raso Biología non human factors Human reliability nuclear power plant destructive inspection Non-destructive inspection (NDI) is one of the key elements in ensuring quality of engineering systems and their safe use. This inspection is a very complex task, during which the inspectors have to rely on their sensory, perceptual, cognitive, and motor skills. It requires high vigilance once it is often carried out on large components, over a long time, and in hostile environments and restriction of workplace. A successful NDI requires careful planning, choice of adequate methods and inspection procedures, as well as qualified and trained inspection team. A failure of such inspection to detect critical defects in safety-related components of nuclear power plants, for instance, may lead to catastrophic consequences for workers, public and environment. Therefore, ensuring that NDI is reliable and capable of detecting all critical defects is of utmost importance. Despite increased use of automation, human inspectors, and thus human factors, still play an important role in NDI reliability. Human reliability is the probability of humans conducting specific tasks with satisfactory performance. Many techniques are suitable for modeling and analyzing human reliability in NDI of nuclear power plant components, such as FMEA (failure modes and effects analysis) and THERP (technique for human error rate prediction). An example of using qualitative and quantitative assessments with these two techniques to improve typical NDI of pipe segments of a core cooling system of a nuclear power plant, through acting on human factors issues, is presented. 2019 artículo científico 2319-0612 https://www.redalyc.org/articulo.oa?id=722280898003 en http://www.redalyc.org/revista.oa?id=7222 Brazilian Journal of Radiation Sciences application/pdf Sociedade Brasileira de Proteção Radiológica - SBPR Brazilian Journal of Radiation Sciences (Brasil) Num.2B Vol.7