Regional Basic Professional Training Course in Korea

❙ 1077 ❙
21. Safety Culture
courses of action, justification and independent review by the utility. A root cause
analysis has to be undertaken to ensure that the real cause of the problem (e.g. incident) is
identified. The regulator can check evidence of the adequacy through monitoring the
occurrence of similar problems.
In all cases the emphasis must be on systematic and conservative assumptions that can be
related to risk and the accepted safety criteria. The fundamental principles of safety
culture namely, prudent and rigorous approach, questioning attitude, and communications
underpin the need for all safety case submissions and root cause analyses to be carried out
with due regard for the possible consequences.
Whereas sufficient attention may be devoted to technical plant modifications, the same is
not always true for changes in organizational systems. Yet it is the latter that may have
very serious consequences for the ability of the organization to develop a sound safety
culture.
Lack and failure of independent nuclear safety reviews
For all nuclear safety‐significant proposals and modifications, independent nuclear safety
assessments should be undertaken by persons other than those who have undertaken the
original work. In a healthy safety culture, these assessments will always have been fully
documented, and checked for methodological, calculation and technical accuracy and
validity, using approved procedures.
Violations
Non‐compliance (violations) tends to be recorded by most licensees to varying degrees, in
relation to breaches of operating rules and operating instructions. Such reports can be of
variable quality and detail. Not only do violations provide a rich insight into the
operational performance and compliance characteristics of any organization, and a fertile
ground for investigation into general and specific problem areas, but they also serve to