| Presentation | 2005-12-16 A Study of Safe Failure : An Issue of Safe Failure Fraction in IEC 61508 Kazuo IWAMA, Tsuneharu SHIMODAIRA, Yoshinobu SATO, Koichi SUYAMA, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | IEC 61508 regulates requirements for the purpose of achievement of functional safety. This is translated into Japanese as JIS C 0508. In this standard, it is required to examine the relationship between failure rates of SRS(Safety Related System) and reduction of risk. Failures are classified into safe and dangerous failures. If the total failure rate is constant, it is a significant factor to achieve a necessary Safety Integrated Level (SIL) by means of higher safe failure rates. On the other hand, if safety failures bring on EUC(Equipment Under Controlled), it will be possible to have a big economic risk. From the above viewpoints, the authors study the relationships between safe and dangerous failures as well as the risk reduction achieved by SRS. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | IEC 61508 / Safe Failure / Safe Failure Fraction / SIL(Safety Integrated Level) / Shutdown / Risk |
| Paper # | R2005-47,SSS2005-26 |
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| Conference Information | |
| Committee | SSS |
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| Conference Date | 2005/12/9(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) | A Study of Safe Failure : An Issue of Safe Failure Fraction in IEC 61508 |
| Sub Title (in English) | |
| Keyword(1) | IEC 61508 |
| Keyword(2) | Safe Failure |
| Keyword(3) | Safe Failure Fraction |
| Keyword(4) | SIL(Safety Integrated Level) |
| Keyword(5) | Shutdown |
| Keyword(6) | Risk |
| 1st Author's Name | Kazuo IWAMA |
| 1st Author's Affiliation | Tokyo University of Marine Science & Technology:InterRisk Research Institute & Consulting Inc.() |
| 2nd Author's Name | Tsuneharu SHIMODAIRA |
| 2nd Author's Affiliation | InterRisk Research Institute & Consulting Inc. |
| 3rd Author's Name | Yoshinobu SATO |
| 3rd Author's Affiliation | Tokyo University of Marine Science & Technology |
| 4th Author's Name | Koichi SUYAMA |
| 4th Author's Affiliation | Tokyo University of Marine Science & Technology |
| Date | 2005-12-16 |
| Paper # | R2005-47,SSS2005-26 |
| Volume (vol) | vol.105 |
| Number (no) | 481 |
| Page | pp.pp.- |
| #Pages | 4 |
| Date of Issue | |