![](/images/graphics-bg.png)
Risk-Based Allowed Outage Time and Surveillance Test Interval Extensions for Angra 1
Joint Authors
e Melo, P. F. Frutuoso
Bogado Leite, Sérgio Q.
Orlando Gibelli, Sonia M.
Source
International Journal of Quality, Statistics, and Reliability
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-13, 13 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-07-05
Country of Publication
Egypt
No. of Pages
13
Main Subjects
Economics & Business Administration
Economy
Abstract EN
In this work, Probabilistic Safety Assessment (PSA) is used to evaluate Allowed Outage Times (AOT) and Surveillance Test Intervals (STI) extensions for three Angra 1 nuclear power plant safety systems.
The interest in such an analysis lies on the fact that PSA comprises a risk-based tool for safety evaluation and has been increasingly applied to support both the regulatory and the operational decision-making processes.
Regarding Angra 1, among other applications, PSA is meant to be an additional method that can be used by the utility to justify Technical Specification relaxation to the Brazilian regulatory body.
The risk measure used in this work is the Core Damage Frequency, obtained from the Angra 1 Level 1 PSA study.
AOT and STI extensions are evaluated for the Safety Injection, Service Water and Auxiliary Feedwater Systems using the SAPHIRE code.
In order to compensate for the risk increase caused by the extensions, compensatory measures as (1) test of redundant train prior to entering maintenance and (2) staggered test strategy are proposed.
Results have shown that the proposed AOT extensions are acceptable for two of the systems with the implementation of compensatory measures whereas STI extensions are acceptable for all three systems.
American Psychological Association (APA)
Orlando Gibelli, Sonia M.& e Melo, P. F. Frutuoso& Bogado Leite, Sérgio Q.. 2012. Risk-Based Allowed Outage Time and Surveillance Test Interval Extensions for Angra 1. International Journal of Quality, Statistics, and Reliability،Vol. 2012, no. 2012, pp.1-13.
https://search.emarefa.net/detail/BIM-452021
Modern Language Association (MLA)
Orlando Gibelli, Sonia M.…[et al.]. Risk-Based Allowed Outage Time and Surveillance Test Interval Extensions for Angra 1. International Journal of Quality, Statistics, and Reliability No. 2012 (2012), pp.1-13.
https://search.emarefa.net/detail/BIM-452021
American Medical Association (AMA)
Orlando Gibelli, Sonia M.& e Melo, P. F. Frutuoso& Bogado Leite, Sérgio Q.. Risk-Based Allowed Outage Time and Surveillance Test Interval Extensions for Angra 1. International Journal of Quality, Statistics, and Reliability. 2012. Vol. 2012, no. 2012, pp.1-13.
https://search.emarefa.net/detail/BIM-452021
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-452021