TNAG-1505-FCO40-2063-Guangdong-nuclear-power-station-project-at-Daya-Bay-safety-c-1986 — Page 84

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