V. Nuclear Safety Research
14
Developing nuclear
safety management and technology research are important measures in securing and improving nuclear safety standards. Nuclear safety research has been listed as a key item in technology research in the Seventh Five-year Plan of China, with priority accorded in fund allocation.
The following are key issues which have already
attained
results.
will In-depth study
continue
conducted during the period of the Seventh Five-year Plan :-
some
to be
(1) The setting up of software systems for nuclear
the departments concerned
structural
assessment,
in safety analysis and calculation NNSA have collected and studied a lot of advanced analysis and
calculation programmes which are indispensable to the safety assessment of nuclear plants. These programmes include : reactor physics, fuel management, system analysis, transient analysis,
thermo-hydraulic power,
mechanics, earthquake
analysis, containment
radiation
protection,
environmental assessment and probabilistic risk assessment
(PSA). Advanced international programmes such as RELAP, FRAP,
MARCH, SETS are also available and being used in the safety
analysis or safety assessment of the Qinshan Nuclear Plant. Further expansion on the collection, application, research and
improvement of the programmes
the programmes will be carried out
be carried out in future. A
CDC-830 computer
computer will soon be installed by
by NNSA in order to strengthen our ability in operational programmes and operational safety assessment.
(2) Probabilistic Risk Assessment (PSA) : PSA is an important means in analysing the weaknesses of nuclear plants and improving on their safety standards. Its function
is