Abstract
There are both activities and trends at the Nordic nuclear power plants that will result in changes in Technical Specifications (TS), e.g. modernizations, increase of electrical power, risk informed strategies. At the same time, authorities are increasing the requirements on risk informed evaluation of the TS. The evaluation of TS from a risk point of view raises several questions:
- How shall the TechSpec conditions be evaluated?
- What aspects shall be taken into consideration?
- Can a prolonged/shortened test interval or AOT (allowed outage time) affect the experienced importance of the equipment?
-What do the conditions in the TechSpec with regard to AOT really represent? Are they conditions that shall be used when spare part storage and/or maintenance strategies are developed or are they representing how a real situation (unavailable component) shall be managed?
This paper presents the Nordic Nuclear Safety Research (NKS) project with the aim to address these questions.
- How shall the TechSpec conditions be evaluated?
- What aspects shall be taken into consideration?
- Can a prolonged/shortened test interval or AOT (allowed outage time) affect the experienced importance of the equipment?
-What do the conditions in the TechSpec with regard to AOT really represent? Are they conditions that shall be used when spare part storage and/or maintenance strategies are developed or are they representing how a real situation (unavailable component) shall be managed?
This paper presents the Nordic Nuclear Safety Research (NKS) project with the aim to address these questions.
| Original language | English |
|---|---|
| Title of host publication | Proceedings of PSAM 9 |
| Editors | Vincent Ho, Tsu-Mu Kao, Enrico Zio |
| Place of Publication | Hong Kong |
| Publisher | International Association of Probabilistic Safety Assessment and Management IAPSAM |
| ISBN (Print) | 978-988-99191-5-7 |
| Publication status | Published - 2008 |
| MoE publication type | A4 Article in a conference publication |
| Event | PSAM 9 — International Conference on Probabilistic Safety Assessment & Management - Hong Kong, Hong Kong Duration: 18 May 2008 → 23 May 2008 |
Conference
| Conference | PSAM 9 — International Conference on Probabilistic Safety Assessment & Management |
|---|---|
| Country/Territory | Hong Kong |
| City | Hong Kong |
| Period | 18/05/08 → 23/05/08 |
Keywords
- PSA
- technical specifications
- allowed outage time
- test interval
- risk-informed decision making