wenra - nucleus · 04 safetyreference levels srl 05 benchmarking 06 national action plan ... •...
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International Conference on Effective Nuclear Regulatory Systems
Ottawa, 9 April 2013
Hans Wanner, WENRA Chairman
WENRAHarmonisation of safetyrequirements by self-commitment, mutual benchmarking and control
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Harmonisation of safety requirements by self-commitment, mutual benchmarking and control / Hans Wanner, Chairman
01 The origins of WENRA
02 WENRA Working Group on Waste and Decommissioning WGWD
03 Self commitment
04 Safety Reference Levels SRL
05 Benchmarking
06 National Action Plan
07 Conclusions
ContentsInternational Conference on Effective Nuclear Regulatory SystemsOttawa, 9 April 2013
2
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01WENRA
3 Harmonisation of safety requirements by self-commitment, mutual benchmarking and control / Hans Wanner, Chairman
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• Association of the Heads of Nuclear Regulatory Authorities of the
EU countries with NPP and Switzerland
• Original Terms of Reference signed on 4 February 1999
• Revised on 14 March 2003
• Revised on 26 March 2010
www.wenra.org
01 WENRABasic facts
4 Harmonisation of safety requirements by self-commitment, mutual benchmarking and control / Hans Wanner, Chairman
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01 WENRABasic facts
5
17 Members
9 Observers
Harmonisation of safety requirements by self-commitment, mutual benchmarking and control / Hans Wanner, Chairman
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RHWG Reactor Harmonisation
Working Group
WGWD Working Group on
Waste and Decommissioning
Ad-hoc Working Groups
01 WENRA
6
Working Groups
Harmonisation of safety requirements by self-commitment, mutual benchmarking and control / Hans Wanner, Chairman
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02WENRA Working Group on Waste and Decommissioning WGWD
7 Harmonisation of safety requirements by self-commitment, mutual benchmarking and control / Hans Wanner, Chairman
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02 WENRA WGWD
8
History and status of WGWD work
Harmonisation of safety requirements by self-commitment, mutual benchmarking and control / Hans Wanner, Chairman
Originally
Harmonisation of requirements in the field of radioactive waste and spent
fuel storage and decommissionning
2008
Safety Referency Levels for radioactive waste disposal facilities
Members
Senior experts and Heads of unit responsible for elaborating the
regulatory system in their respective countries
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02 WENRA WGWD
9
Scope
Harmonisation of safety requirements by self-commitment, mutual benchmarking and control / Hans Wanner, Chairman
UmbrellaDocument
Disposal
Decommis-sioning
Conditioning
Storage
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03Self Commitment
10 Harmonisation of safety requirements by self-commitment, mutual benchmarking and control / Hans Wanner, Chairman
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03 Self Commitment
11
WENRA Policy Statements
Harmonisation of safety requirements by self-commitment, mutual benchmarking and control / Hans Wanner, Chairman
• Commitment to continuous improvement of nuclear safety
• Nuclear safety and radiation protection are the prime responsibility of the
operator
• Common approach to nuclear safety
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03 Self Commitment
12
Harmonisation process
Harmonisation of safety requirements by self-commitment, mutual benchmarking and control / Hans Wanner, Chairman
WGWD
Elaboration ofSafety Ref.
Levels
WGWD
Elaboration ofSafety Ref.
Levels
Regulators
Self-assessment of
Compliance
Regulators
Self-assessment of
Compliance
WGWD
Benchmarking Validation
WGWD
Benchmarking Validation
Regulators
Elaboration ofNational
Action Plan
Regulators
Elaboration ofNational
Action Plan
WGWD
Benchmarking of National Action Plan
WGWD
Benchmarking of National Action Plan
Adapted national
regulatory system
in compliance with
SRLs
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04Safety Reference Levels SRL
13 Harmonisation of safety requirements by self-commitment, mutual benchmarking and control / Hans Wanner, Chairman
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04 Safety Reference Levels
14
Elaboration
Harmonisation of safety requirements by self-commitment, mutual benchmarking and control / Hans Wanner, Chairman
SRL are in general based on IAEA standards
WENRA SRL (waste and SF storage) IAEA SF-1; para 3.16
The licensee shall carry out at regular
intervals a review of the safety of the
facility (PSR). The review shall be made
periodically, at a frequency which shall be
established by the national regulatory
framework (e. g. every ten years).
The process of safety assessment for facilities
and activities is repeated in whole or in part as
necessary later in the conduct of operations in
order to take into account changed
circumstances (such as the application of new
standards or scientific and technological
developments), the feedback of operating
experience, modifications and the effects of
ageing. For operations that continue over long
periods of time, assessments are reviewed and
repeated as necessary. Continuation of such
operations is subject to these reassessments
demonstrating to the satisfaction of the
regulatory body that the safety measures
remain adequate. (SF-1; para 3.16)
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04 Safety Reference Levels
15
Disposal Report
Harmonisation of safety requirements by self-commitment, mutual benchmarking and control / Hans Wanner, Chairman
Safety Area Safety Issue
Safety Management Responsibility
Organizational structure
Management System
Site characterization and disposal
facility development
General Requirements
Site characterization
Design
Information gathering and monitoring
Construction
Operation
Record and knowledge keeping
Decommissioning and closure of disposal facility
Post-closure phase and release from regulatory control
Waste acceptance Derivation of waste acceptance criteria
Revision of waste acceptance criteria
Safety verification Scope and content of safety case
Operational and post-closure safety assessment
Periodic safety review (PSR)
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05Benchmarking
16 Harmonisation of safety requirements by self-commitment, mutual benchmarking and control / Hans Wanner, Chairman
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05 Benchmarking
17
Of Regulatory Systems
Harmonisation of safety requirements by self-commitment, mutual benchmarking and control / Hans Wanner, Chairman
Common benchmarking and validation of national self-assessment
Assessment
• Groups of 4 to 5 countries
• Notation codes to indicate compliance with SRL:
o A (Full compliance)
o B (A difference exists, but justified from safety viewpoint)
o C (Non compliance, to be addressed for harmonisation)
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05 Benchmarking
18
Decommissioning: SRL implementation
Harmonisation of safety requirements by self-commitment, mutual benchmarking and control / Hans Wanner, Chairman
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05 Benchmarking
19
Decommissioning: SRL implementation
Harmonisation of safety requirements by self-commitment, mutual benchmarking and control / Hans Wanner, Chairman
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05 Benchmarking
20
Decommissioning: “C“ ratings
Harmonisation of safety requirements by self-commitment, mutual benchmarking and control / Hans Wanner, Chairman
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21 Harmonisation of safety requirements by self-commitment, mutual benchmarking and control / Hans Wanner, Chairman
SR
L im
ple
me
nta
tio
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re
gu
lati
on
05 BenchmarkingSpent Fuel Storage: Regulation/Facilities
SR
L im
ple
me
nta
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S
F s
tora
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faci
liti
es
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06National Action Plan
22 Harmonisation of safety requirements by self-commitment, mutual benchmarking and control / Hans Wanner, Chairman
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06 National Action Plan
23
Implementing SRL in national regulations
Harmonisation of safety requirements by self-commitment, mutual benchmarking and control / Hans Wanner, Chairman
• Incorporation of SRL or missing parts thereof in national ordinances
and regulatory guides
• Target duration of implementation: 3 years
• Implementation in regulations and facilities
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06 National Action Plan
24
Monitoring of implementation
Harmonisation of safety requirements by self-commitment, mutual benchmarking and control / Hans Wanner, Chairman
• Periodical reporting of progress of SRL implementation at WGWD
meetings
• Experience feedback on update of regulations
• Ensuring non-divergence of interpretations
After completion of National Action Plan: re-benchmarking by WGWD
� Full compliance reached
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07Conclusions
25 Harmonisation of safety requirements by self-commitment, mutual benchmarking and control / Hans Wanner, Chairman
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26 Harmonisation of safety requirements by self-commitment, mutual benchmarking and control / Hans Wanner, Chairman
• Storage – decommissioning – disposal: Holistic approach to
reach overall consistency
• Successful stepwise harmonisation process with feedback loops
• Full implementation of SRL through National Action Plans
planned within 3 years after completion of SRL report
• SRL implementation in storage facilities further advanced than
in regulations
• Key to success: WGWD participants are high-level experts
07 Conclusions
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WENRA
Hans Wanner
Industriestrasse 19
5200 Brugg
Switzerland
Thank you
Tel +41 56 460 85 68
Fax +41 56 460 84 99
www.wenra.org
RHWG
REACTOR HARMONISATION
WORKING GROUP
WGWD
WORKING GROUP ON WASTE
AND DECOMISSIONING
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WENRA SRL
28
RHWG Issues
Harmonisation of safety requirements by self-commitment, mutual benchmarking and control / Hans Wanner, Chairman
A Safety Policy
B Operating Organisation
C Management System
D Training and Authorization of NPP staff
E Design Basis Envelope for Existing Reactors
F Design Extension of Existing Reactors
G Safety Classification of Structures, Systems and Components
H Operational Limits and Conditions
I Ageing Management
J System for Investigation of Events and Operational Experience Feedback
K Maintenance, In-service inspection and Functional Testing
LM Emergency Operating Procedures and Severe Accident Management Guidelines
N Contents and updating of Safety Analysis Report
O Probabilistic Safety Analysis
P Periodic Safety Reviews
Q Plant Modifications
R On-site Emergency Prepardness
S Protection against Internal Fires
Issues