interchangeability and application of codes with different ...€¦ · csa z299 series &...
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Interchangeability and Application of
Codes with different designs
What is required for this to Happen?
The opinions I express in this presentation are my own and they do not represent any organization or committee with which I am involved
Some Definitions
Interchangeability and Application of Codes with different designs
• This is a complex and interesting title What do we mean by:
• Interchangeability and
• Application
Different concepts/designs
• VVER’S, AP-1000, EPR, CANDU’S etc.
Interchangeability
What is interchangeability
The ability to identify the focus, basic principles and technical content of the standard and determine how this standard can be applied to the concept under consideration.
Application
What do we mean by application
Application refers to the implementation of the standards and its requirements, to the subjects covered by the standard under consideration
FACTORS THAT IMPACT
Interchangeability and Application
The Main Factors
• Scope and technical content
•National Safety and Environmental Requirements and Regulations
• Industrial application and cultural practices
• Political factors
• Industrial
• National
Scope and Technical Content
• Scope
• What is the coverage of the standard.
• General application versus specific application
• SEC III vs. RCCM-R vs. N285 Series
• Standards are based on concepts
• Technical Content
• What is the focus of the standard
• What failure mechanisms are covered
National Safety and Environmental Requirements
and Regulations
• Each country has its own individual set of laws and concern for safety – IAEA provides guidelines which lead to some consistency.
• Each country has its own unique political situation with which it has to deal.
• Cultural attitudes impact what the regulatory and political authorities find acceptable with respect to radioactivity and environmental acceptance.
Industrial Application and Cultural Practices
• Industrial Application
• Common industrial practices
• Management systems vs. quality assurance
• Cultural Practices
• Understanding the values of the community, the country e.g., approach to quality assurance, competition, worker vs. management.
• Language differences
Political Factors
• Industrial
• Industrial and political complex collude to exclude other competitors.
• Political
• Political philosophy re: national standards and sharing of information
An ExampleAdoption of Section III by
CSA N285 Series
CANDU Concept vs. LWR Concept
There is a History for adoption of ASME Code
Both Codes Focus on Pressure Boundary
Integrity
There are differences in coverage; Licensee vs. Manufacturer
However the principal focus of N285.0 and Section III, Div. 1 is:
“No Pressure Boundary Failure”
Integrity of the Pressure Boundary
The integrity of the pressure boundary is achieved through a
Controlled
Systematic Approach
Control & Systematic
•What do we mean by control?
• Defined requirements which are required by the regulatory authority, to be implemented
•What do we mean by systematic?
• Repeatable steps of a recognized process that produces the pressure boundary integrity required
Control
Embodies the concepts of:
Responsibility
Accountability
Compliance and enforcement
Systematic
Basic Elements Addressed
Materials
Design
Fabrication & installation
Examination
Testing
Overpressure
Quality management system
1.Define requirements
- technical standards to be used
- relationship between CSA standards and other codes
- quality management
2.Define responsibility & accountability
3.Enforce compliance
Process of Implementation
Foundation of the N285 Series
Basic Elements:
• Defined responsibility
• Control of activities
• Application of sound engineering principles
• Guaranteed compliance
Defined Responsibilities
• Regulator
• Inspection Agency
• Designer
• Manufacturer
• Installer
• Owner/Operator
Control of Activities
Quality Management System
Owners activities - CSA N286
Component manufacture
SEC III, NCA-4000; ISO-9000 Series; Z-299 Series
Material Organization
Manufacture, Supply & Services
SEC-III NCA-3800
CSA Z299 Series & ISO-9000 Series
Quality System Monitored
Sound Engineering PrinciplesConsensus Codes and Standards
CSA Standards
N285 Series
B51
ASME Standards
BPV Code
Section III
Section VIII
B31 Codes
B31.1, B31.3
B16 Standards
B16.5, B16.34
Guaranteed ComplianceCertification of design documents
Design Registration
Third Party Inspection
Certified Material Test report
Manufacturer Data Reports
Certificate of Authorization
Basic Relationship of N285.0 to SEC III
N285.0 defines the classification rules that lead to defining the classification of the process and safety systems
SEC III provides the requirements for the components based on classification
Interchangeability
• CSA N285.0 has identical or very similar concepts to Section III.
• N285.0 either directly references Section III or has a system very similar to Section III.
• N285.0 provides requirements that Canada wants as additional requirements e.g., Design Registration - not a requirement of SEC III.
• N285.0 provides requirements for the unique CANDU items that Section III does not cover e.g., materials, rolled joints for Class 1 service etc.
Application
• The Canadian Regulator CNSC participates and supports the adoption of the N285 Standards through the License.
• The industry in Canada has a background of use of the ASME Code and its concepts - to some extent driven by trade considerations.
• N285.0 has adopted the quality assurance requirements of Section III with slight variation
• N285.0 has aligned and implements the fundamental concepts of Section III
Thank you for your attention.