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
Development of Nuclear
Safety Goals for NPPs in China
Huang Dongxing
Support Center of Nuclear Technology, CAEA
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
Content
• Regulation of Nuclear Safety in China
• Development of safety goals
• Safety Goals Framework in China
• Summary
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
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
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
Organizational Structure of the Government
(nuclear and radiation related)
State Council
CAEA
MOE/NNSA
NEA
MOH
MOST
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
8 Jul - 12 Jul, 2013, Vienna, Austria
MOPS
SDPC
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
The Hierarchy of Legislation in China
Mandatory
By People’s Congress
Laws
Mandatory
Mandatory
Guiding Doc.
Reference Doc.
Administrative
Regulations
Ministry’s Rules
or Orders
Safety Guides
Technical Documents
8 Jul - 12 Jul, 2013, Vienna, Austria
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
Development of Safety Goals
• 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
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
Development of Safety Goals
• 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
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
Development of Safety Goals
• 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
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
Development of Safety Goals
• 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
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
Specific Safety Goals
• 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
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
Specific of Safety Goals
• More innovation measures in design
– Some measures used in AP1000 and EPR are
reference
– Next generation NPP
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
Framework of Safety Goals
HIERARCHY
Level
Content
Top Level
to protect people
General Safety
Goal
and the
environment from
harmful effects of
ionizing
Top
level
Upper level
Safety Goals
Immediate level
Safety Goal
radiation(HAF 102)
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
Framework of Safety Goals
HIERARCHY
Level
Content
Upper Level
Ensuring adequate
Qualitive safety
goal
protection in all
operational modes
of NPP: Goal of
radiation protection
Top
level
Upper level
Safety Goals
Immediate level
Safety Goal
Goal of technical
safety
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
Framework of Safety Goals
HIERARCHY
Level
content
Intermediat Proven approaches
e Level
and good practices
Quatitive
Safety
Goals
to achieve the
higher level safety
goals as well as
definition of general
requirements.
Top
level
Upper level
Safety Goals
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
Framework of Safety Goals
HIERARCHY
Level
Iow Level
Specific
Safety
Provisions
content
Providing
necessary specific
safety measures
for nuclear power
plant at the site
Top
level
Upper level
Safety Goals
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
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
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
Thanks for your
attention!
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
Questions
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?
8 Jul - 12 Jul, 2013, Vienna, Austria