| Presentation | 2005/7/19 Trends and Issues found in PSA/PRA Techniques : Estimation of the Risk Reduction achieved by Safety-related Systems Yoshinobu SATO, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | The overall system, to which probabilistic safety/risk assessment (PSA/PRA) techniques are applied, usually involve such system elements as an equipment under control (EUC), EUC control system and safety-related systems (SRSs). The SRS materializes the risk reduction of the overall system in order to achieve safety. Therefore, it is required to study proper modeling and formulation of the relationship between the risk reduction made by SRS and demand modes of SRS operation. However, the current status of international standards provides the PSA/PRA techniques limited to the special demand modes of operation, i.e. a low frequency and short-duration mode as well as a continuous (high frequency demand) mode only. It is important to establish appropriately the modeling and formulation generalized from the whole modes of SRS operation for good practice of PSA/PRA. Thus, in the present paper, a number of generalized PSA/PRA techniques resulting from the recent studies of the estimation of risk reduction by SRS are also surveyed and discussed. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Probabilistic Safety Assessment / Probabilistic Risk Assessment / Safety-Related System / Operation Mode |
| Paper # | SSS2005-9 |
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| Conference Information | |
| Committee | SSS |
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| Conference Date | 2005/7/19(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Safety (SSS) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Trends and Issues found in PSA/PRA Techniques : Estimation of the Risk Reduction achieved by Safety-related Systems |
| Sub Title (in English) | |
| Keyword(1) | Probabilistic Safety Assessment |
| Keyword(2) | Probabilistic Risk Assessment |
| Keyword(3) | Safety-Related System |
| Keyword(4) | Operation Mode |
| 1st Author's Name | Yoshinobu SATO |
| 1st Author's Affiliation | Faculty of Marine Technology, Tokyo University of Marine Science & Technology() |
| Date | 2005/7/19 |
| Paper # | SSS2005-9 |
| Volume (vol) | vol.105 |
| Number (no) | 209 |
| Page | pp.pp.- |
| #Pages | 4 |
| Date of Issue | |