| THE MINISTRY OF SCIENCE AND TECHNOLOGY -------- 30/2012/TT-BKHCN | SOCIALIST REPUBLIC OF VIETNAM Independence - Freedom - Happiness --------------- Hanoi, December 28th 2012 |
CIRCULAR
THE REGULATIONS ON NUCLEAR SAFETY APPLICABLE TO THE DESIGNS OF NUCLEAR POWER PLANTS
Pursuant to the Law on Atomic Energy dated June 03rd 2008;
Pursuant to the Government's Decree No. 28/2008/NĐ-CP dated March 14th 2008, defining the functions, tasks, powers and organizational structure of the Ministry of Science and Technology;
Pursuant to the Government's Decree No. 70/2010/NĐ-CP dated June 22nd 2010, specifying and guiding a number of articles of the Law on Atomic Energy applicable to nuclear power plants;
At the proposal of the Director of the Vietnam Agency for radiation and nuclear safety;
The Minister of Science and Technology issues a Circular on the regulations on nuclear safety applicable to the designs of nuclear power plants
Chapter I
GENERAL REGULATIONS
Article 1. Scope of regulation
This Circular deals with the general regulations on nuclear safety applicable to nuclear power plants.
Article 2. Subjects of application
This Circular is applicable to the investors, the organizations that participate in the consultation, design, manufacture, construction, repair, maintenance, operation, design appraisal, and licensing of nuclear power plants.
Article 3. Interpretation of terms
In this Circular, the terms below are construed as follows:
1.The plant states is all possible states of the nuclear power plant, including the normal operation and abnormal operation (hereinafter referred to as operational state), the state upon the occurrence of design basis accidents and beyond design basis accidents (hereinafter referred to as accident conditions).
2. Normal operation is a state in which the nuclear power plant operates within certain operational limits and conditions. Normal operation includes start-up, power operation, reactor shutdown, maintenance, testing, and refueling.
3. Abnormal operation is a deviation from the normal operation which is expected to occur at least once during the operating lifetime of the nuclear power plant without significantly impacting the items important to safety or leading to accident conditions.
4. Design basis accidents are the accident that the design of the nuclear power plant is able to restrict upon their occurrence so that the damage to the fuel and the release of radioactive material are kept within authorized limits.
5. Beyond design basis accidents are the accidents that are more severe than the design basis accidents. The nuclear power plant might suffer damage upon the occurrence of such accidents. They are assessed to provide solutions for improving the resistance of the nuclear power plant and limit the radioactive consequences to an acceptable level.
