Upload
others
View
6
Download
0
Embed Size (px)
Citation preview
8 Jul - 12 Jul, 2013, Vienna, Austria
Development of Nuclear Safety Goals for NPPs in China
Huang Dongxing
Support Center of Nuclear Technology, CAEA
Technical Meeting on Development of a TECDOC on Development and Application of a Safety Safety Goals Framework for Nuclear
Installations, Vienna, Austria, from 8 to 12 July, 2013
8 Jul - 12 Jul, 2013, Vienna, Austria
Content
• Regulation of Nuclear Safety in China
• Development of safety goals
• Safety Goals Framework in China
• Summary
Technical Meeting on Development of a TECDOC on Development and Application of a Safety Safety Goals Framework for Nuclear Installations, Vienna, Austria, from 8 to 12 July, 2013
8 Jul - 12 Jul, 2013, Vienna, Austria
Nuclear Legislation System
• From the very beginning of nuclear industry, Chinese
government has been attaching high importance to
nuclear safety for nuclear facilities and nuclear
activities:
– Principle: Safety first, Quality first
– Establishment of safety regulatory system including
regulatory organizations, legislation and quality
assurance management system
Technical Meeting on Development of a TECDOC on Development and Application of a Safety Safety Goals Framework for Nuclear Installations, Vienna, Austria, from 8 to 12 July, 2013
8 Jul - 12 Jul, 2013, Vienna, Austria
State Council
CAEA MOE/NNSA NEA MOH MOST MOPS SDPC
Organizational Structure of the Government (nuclear and radiation related)
CAEA: China Atomic Energy Authority
MOE: Ministry of Environment Protection
NNSA: National Nuclear Safety Administration
NEA: National Energy Administration
MOH: Ministry of Health
MOST: Ministry of Science & Technology
MOPS: Ministry of Public Security
SDPC: State Development & Planning Commission
Technical Meeting on Development of a TECDOC on Development and Application of a Safety Safety Goals Framework for Nuclear Installations, Vienna, Austria, from 8 to 12 July, 2013
8 Jul - 12 Jul, 2013, Vienna, Austria
The Hierarchy of Legislation in China
Technical Documents
Safety Guides
Ministry’s Rules or Orders
Administrative
Regulations
Laws Mandatory
Mandatory
Mandatory
Guiding Doc.
Reference Doc.
By People’s Congress
By State Council
By
Governmental
Ministry (s)
Technical Meeting on Development of a TECDOC on Development and Application of a Safety Safety Goals Framework for Nuclear Installations, Vienna, Austria, from 8 to 12 July, 2013
8 Jul - 12 Jul, 2013, Vienna, Austria
• General safety goal
– to protect people and the environment from
harmful effects of ionizing radiation(HAF 102)
Goal of radiation protection
Goal of technical safety
Development of Safety Goals
Technical Meeting on Development of a TECDOC on Development and Application of a Safety Safety Goals Framework for Nuclear Installations, Vienna, Austria, from 8 to 12 July, 2013
8 Jul - 12 Jul, 2013, Vienna, Austria
• Quantitative safety goal
– 2002, NNSA published “Technical policy for several
important safety problem during the design of new
nuclear power plant. Quantitative safety goals
were defined as:
CDF for new NPP: 10-5/y
LERF for new NPP: 10-6/y
Development of Safety Goals
Technical Meeting on Development of a TECDOC on Development and Application of a Safety Safety Goals Framework for Nuclear Installations, Vienna, Austria, from 8 to 12 July, 2013
8 Jul - 12 Jul, 2013, Vienna, Austria
• Quantitative safety goal
– 2006, NNSA published HAD 102/17 “Safety
Valuation and Verification for NPP”.
CDF for operating NPP 10-4/y, for new NPP: 10-5/y
LERF for operating NPP 10-5/y, for new NPP: 10-6/y
– 2007, NNSA published “Principle of nuclear safety
review for 2nd generation NPP plus”.
CDF for 2nd generation NPP plus: 10-4/y
LERF for 2nd generation NPP plus: 10-5/y
Development of Safety Goals
Technical Meeting on Development of a TECDOC on Development and Application of a Safety Safety Goals Framework for Nuclear Installations, Vienna, Austria, from 8 to 12 July, 2013
8 Jul - 12 Jul, 2013, Vienna, Austria
• Safety goal after Fukushima Accident – 2010, NNSA published “Technical Policy of
Application of PSA in Nuclear Safety Field”. – 2012, “12th Five Years Scheme of Nuclear Safety
and Radiation Pollute Preventive Treatment and the Long-range Perspective Goal to 2020” is approved by the State Council.
For new NPP during 12th 5-years: CDF: 10-5/y; LERF: 10-6/y
For new NPP later: Practicalelimination of the possibility
of large release of radiation
Development of Safety Goals
Technical Meeting on Development of a TECDOC on Development and Application of a Safety Safety Goals Framework for Nuclear Installations, Vienna, Austria, from 8 to 12 July, 2013
8 Jul - 12 Jul, 2013, Vienna, Austria
• Aimed to the 2nd generation NPP plus – Enhance the capability of prevention and mitigation
of severe accident. • Core injection • containment discharge filtrated system • Analysis of Available and accessibility of equipment • Preparation of SAMG with all scene
– Improvement of cold source design – Improvement of electrical design – Improvement of ability to extreme external event,
such as earthquake, flooding
Specific Safety Goals
Technical Meeting on Development of a TECDOC on Development and Application of a Safety Safety Goals Framework for Nuclear Installations, Vienna, Austria, from 8 to 12 July, 2013
8 Jul - 12 Jul, 2013, Vienna, Austria
• More innovation measures in design – Some measures used in AP1000 and EPR are
reference – Next generation NPP
Specific of Safety Goals
Technical Meeting on Development of a TECDOC on Development and Application of a Safety Safety Goals Framework for Nuclear Installations, Vienna, Austria, from 8 to 12 July, 2013
8 Jul - 12 Jul, 2013, Vienna, Austria
Framework of Safety Goals HIERARCHY
Level Content
Top Level
General Safety Goal
to protect people
and the
environment from
harmful effects of
ionizing
radiation(HAF 102)
Technical Meeting on Development of a TECDOC on Development and Application of a Safety Safety Goals Framework for Nuclear Installations, Vienna, Austria, from 8 to 12 July, 2013
Upper level
Safety Goals
Top
level
Immediate level
Safety Goal
Low level Safety Goal
8 Jul - 12 Jul, 2013, Vienna, Austria
Technical Meeting on Development of a TECDOC on Development and Application of a Safety Safety Goals Framework for Nuclear Installations, Vienna, Austria, from 8 to 12 July, 2013
Level Content
Upper Level
Qualitive safety goal
Ensuring adequate
protection in all
operational modes
of NPP: Goal of
radiation protection
Goal of technical
safety
Upper level
Safety Goals
Top
level
Immediate level
Safety Goal
Low level Safety Goal
Framework of Safety Goals HIERARCHY
8 Jul - 12 Jul, 2013, Vienna, Austria
Technical Meeting on Development of a TECDOC on Development and Application of a Safety Safety Goals Framework for Nuclear Installations, Vienna, Austria, from 8 to 12 July, 2013
Level content
Intermediate Level
Quatitive Safety Goals
Proven approaches and good practices to achieve the higher level safety goals as well as definition of general requirements.
Upper level
Safety Goals
Top
level
Immediate level
Safety Goal
Low level Safety Goal
Framework of Safety Goals HIERARCHY
8 Jul - 12 Jul, 2013, Vienna, Austria
Technical Meeting on Development of a TECDOC on Development and Application of a Safety Safety Goals Framework for Nuclear Installations, Vienna, Austria, from 8 to 12 July, 2013
Level content
Iow Level
Specific Safety Provisions
Providing necessary specific safety measures for nuclear power plant at the site
Upper level
Safety Goals
Top
level
Immediate level
Safety Goal
Low level Safety Goal
Framework of Safety Goals HIERARCHY
8 Jul - 12 Jul, 2013, Vienna, Austria
Technical Meeting on Development of a TECDOC on Development and Application of a Safety Safety Goals Framework for Nuclear Installations, Vienna, Austria, from 8 to 12 July, 2013
Summary • The framework of nuclear safety goals could be
constructed as a four-level Hierarchy.
• The safety goal for NPP is strict after Fukushima
Accident.
• Licensing requirements apply to all stages of nuclear
facilities.
• Nuclear Safety Inspection without blindness.
• Effective national nuclear emergency management
system
NPPs should be in safety status.
8 Jul - 12 Jul, 2013, Vienna, Austria
Thanks for your attention!
Technical Meeting on Development of a TECDOC on Development and Application of a Safety Safety Goals Framework for Nuclear Installations, Vienna, Austria, from 8 to 12 July, 2013
8 Jul - 12 Jul, 2013, Vienna, Austria
Questions
Technical Meeting on Development of a TECDOC on Development and Application of a Safety Safety Goals Framework for Nuclear Installations, Vienna, Austria, from 8 to 12 July, 2013
1. If the safety goal is higher and the safety
character is better such as AP1000 and EPR,
are emergence device able decrease a litter?
For example the size of emergence zone?
2. How to use the probability safety goal to
research reactor?