Optimization of technical specifications by use of probabilistic methods - A Nordic perspective
Kari Laakso (edt.)
The Technical Specifications of a nuclear power plant
specify the limits for plant operation from the safety
point of view. These operational safety rules were originally
defined on the basis of deterministic analyses and
engineering judgement. As experience has accumulated, it
has proved necessary to consider problems and make specific
modifications in these rules.
Developments in probabilistic safety assessment have provided
a new tool to analyse, present and compare the risk
effects of proposed rule modifications. The main areas
covered in the project are operational decisions in failure
situations, preventive maintenance during power operation
and surveillance tests of standby safety systems.