Abstract
The paper will deal with the consistency of judgement in
the usage of probabilistic safety goals for nuclear power
plants, as analysed in a sub-project within an on-going
Nordic (Sweden/Finland) project. The project has
relations to an on-going OECD/NEA WGRisk task on
probabilistic safety criteria in member countries. Two
important issues when dealing with safety criteria is the
problem of consistency of judgement in a situation when
safety goals are applied to PSA results which change over
time, or which are made up of contributors with major
differences in uncertainties. In many cases changes in
PSA results over time are due to scope extensions or
increases of level of detail, which will lead to an
increase of the frequency of the calculated risk measures
(CDF or off-site release). Changes in plant specific data
and in analysis methods will also cause changes over
time. This gradual extension and development of plant PSA
models may lead to situations where safety goals are
violated. The implications of such violations have been
under discussion.
| Original language | English |
|---|---|
| Title of host publication | International Conference on Probabilistic Safety Assessment & Management |
| Subtitle of host publication | PSAM 9 |
| Publisher | International Association of Probabilistic Safety Assessment and Management IAPSAM |
| Volume | 3 |
| ISBN (Print) | 978-988-99191-5-7 |
| Publication status | Published - 2008 |
| MoE publication type | A4 Article in a conference publication |
| Event | 9th International Conference on Probabilistic Safety Assessment & Management, PSAM 9 - Hong Kong, China Duration: 18 May 2008 → 23 May 2008 |
Conference
| Conference | 9th International Conference on Probabilistic Safety Assessment & Management, PSAM 9 |
|---|---|
| Abbreviated title | PSAM 9 |
| Country/Territory | China |
| City | Hong Kong |
| Period | 18/05/08 → 23/05/08 |
Keywords
- probabilistic safety goals
- probabilistic safety criteria
- PSA