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2. SECTION III EVOLUTION. First Published in 1963Transition from ASA to USAS to ANSI1971 Edition, Nuclear Power Plant Component2007 Edition, ASME B
E N D
1. INTRODUCTION TO THE ASMEBoiler & Pressure Vessel Code: SECTION III, DIVISION 1
Nuclear Power Plant
Components
BY
Marcus N. Bressler, PE
mbresslerpe@juno.com
05/13/2008
2. 2
3. 3 PRIMARY NUCLEAR SECTIONS Section III, Nuclear Plant Components
Division 1 - Metallic Components
Division 2 - Concrete Containment Vessels
Division 3 - Nuclear Packaging (NUPACK)
Section XI, Inservice Inspection of Nuclear Coolant Systems
Division 1 - Rules for Inspection and Testing of Components of Light-Water Cooled Plants
Division 2 - Rules for Inspection and Testing of Components of Gas-Cooled Plants (Inactive, in Process of Rewriting)
Division 3 - Rules for Inspection and Testing of Components of Liquid Metal Cooled Plants (Inactive)
4. 4 REFERENCED SECTIONS
SECTION II - Materials
SECTION V - Nondestructive Examination
SECTION IX - Welding And Brazing Qualification
5. 5 U.S. REGULATORY ISSUES The ASME Code as Law
Synopsis of B&PV Laws, Rules and Regulations
The Enforcement Authorities (States and Provinces)
The U.S Nuclear Regulatory Commission (The Regulatory Authority)
US Code of Federal Regulations (CFR)
10 CFR 50.55a
6. 6
7. 7 ASME NUCLEAR CODE CASES Publication in Supplements, Four per Year
Dual Numbering: e.g. Case N-155-2 (1792-2)
Fiberglass Reinforced Thermosetting Resin Pipe Section III, Division 1, Class 3
NRC Acceptability of Code Cases
8. 8 INTERPRETATIONS
Publication
Used as reference
Cannot change Code requirements
Volume 58, July 1, 2008
9. 9 MANDATORY APPENDICES
Publication
Numbering
Uses Roman Numeral System
10. 10 NONMANDATORY APPENDICES Coverage and Use
Numbering
Uses Alphabetic Capital Letters, but Try not to Use those that are aqkso Roman Numerals
11. 11 APPLICABILITY OF SECTION III AND XI RULES COMMON USE OF BOTH SECTIONS
DUTIES AND RESPONSIBILITIES OF PARTIES
PARTIES INVOLVED
Owner
N -Type Certificate Holder
QSC Certificate Holder
Authorized Inspection Agency (AIA)
Authorized Nuclear Inspector Supervisor (ANIS)
Authorized Nuclear Inspector (ANI)
Enforcement Authority
Regulatory Authority
12. 12 COMMON TERMINOLOGY Owner
Construction
ASME Certificate Of Authorization
Manufacturer (N-Certificate Holder)
Installer (NA-Certificate Holder)
Fabricator (NPT-Certificate Holder)
Authorized Nuclear Inspector (ANI)
13. 13 COMMON TERMINOLOGY (contd) Component
Piping System
Part
Appurtenance
Piping Subassembly
Support
NPT Code Symbol Stamp
14. 14 COMMON TERMINOLOGY (contd) NA Code Symbol Stamp
Material
Seamless Or Welded Without Filler Metal Added
Welded With Filler Metal Added (NPT-Stamp)
Data Report Form
Design Specification
Basis For Construction
Certified By Registered Professional Engineer
Provided By Owner or Designee
15. 15 COMMON TERMINOLOGY (contd) Design Report
Provided by N-Certificate Holder
Design Calculations and Stress Analysis
When required, Certified by RPE
Design Output Drawings
Design Drawings
Correlated With Design Reports
Load Capacity Data Sheets
Design Report Summaries
16. 16 COMMON TERMINOLOGY (contd) ASME Survey Team for N-Type Certificates
Team Leader
Team Member
National Board Rep
ANIS
ANI
Observers (When Assigned) [Have No Vote]
Enforcement Authority (Invited)
Regulatory Authority (Invited)
17. 17 COMMON TERMINOLOGY (contd) ASME Survey Team for Material Organizations
Team Leader & Team Member
Observers (When Assigned) [Have No Vote}
Unannounced Audits for Material Organizations
Team Leader Only
18. 18 COMMON TERMINOLOGY (contd) Inspection
Performed by an ANI
Examinations
Performed by Qualified Personnel
Nondestructive Examinations
Radiography
Magnetic Particle
Eddy Current
Ultrasonic
Liquid Penetrant
Visual
19. 19 COMMON TERMINOLOGY (contd) Testing
Hydrostatic Pressure Test
Pneumatic Pressure Test
Registered Professional Engineer
Certifies Design Input Documents
Certifies Design Output Documents
Certifies Overpressure Protection Report
20. 20 GENERAL REQUIREMENTS OF SECTION III Subsection NCA
General Requirements
Covers Both Division 1 and Division 2
Division 3 has Subsection WA, some references to NCA
Describes Qualifications
Lists Duties and Responsibilities
Referenced by Other Subsections
21. 21 SECTION III - SUBSECTION NCA NCA - 1100 SCOPE
Applies to New Construction
Provides Exclusions
Valve Operators, Controllers
Pump Impellers, Drivers
Intervening Elements
Instruments and Fluid Filled Tubing
Instrument, Control and Sampling Piping
22. 22 SECTION III - SUBSECTION NCA (contd) NCA - 1140 Effective Code
Prior to Winter 1977 Addenda
Contract Date Establishes Code of Record
Winter 1977 Addenda
Code Effective Date Set by Owner
Must be Listed in Design Specification
Duplicate and Replicate Plants
Three year Window, NRC Provided for Five Years
Winter 1981 Addenda
Existing Materials
23. 23 SECTION III - SUBSECTION NCA (contd) NCA - 2000 CLASSIFICATION
Code Does Not Classify
Classification Guidance Provided by
State or Federal Authorities
10CFR50.55a
Regulatory Guide 1.26 (RG 1.26)
NRC Standard Review Plans
American Nuclear Society
Section III Provides Construction Rules for Each Class
Multiple Class Components or Optional Use of Classes
Listed in the Design Specification
24. 24 SECTION III - SUBSECTION NCA (contd) NCA - 2000 - CLASSIFICATION
NCA-2140 LIMITS AND LOADINGS
Design
Operating
Testing
25. 25 SECTION III - SUBSECTION NCA (contd) NCA - 2000 - CLASSIFICATION (contd)
Included in RG 1.26 and 10 CFR 50.55a
Quality Group A
Class 1 Components (NB)
Reactor Pressure Vessel
Pressurizer Vessel (PWR)
Reactor Coolant Pumps
Steam Generators (PWR)
Reactor Coolant Piping
Line Valves
Safety Valves
26. 26 SECTION III - SUBSECTION NCA (contd) NCA - 2000 - CLASSIFICATION (contd)
Class 2 Components Important to Safety (RG 1.26 QG B)
Emergency Core Cooling
Post Accident Heat Removal
Post Accident Fission Product Removal
Includes Vessels, Pumps, Valves, Piping, Storage Tanks, and Supports
Class 3 Components Needed for Operation (RG 1.26 QG C)
Cooling Water Systems
Auxiliary Feedwater Systems
Includes Vessels, Pumps, Valves, Piping, Storage Tanks, and Supports
27. 27 SECTION III - SUBSECTION NCA (contd) NCA - 2000 - CLASSIFICATION (contd)
Class MC Components (Subsection MC)
Containment Vessel
Penetration Assemblies
Does not Include Piping, Pumps and Valves
Piping through Containment Must be Class 1 or Class 2
Subsection NF - Supports
Plate and Shell Type
Linear Type
Standard Supports
Support Class is the Class of the Component Supported
28. 28 SECTION III - SUBSECTION NCA (contd) NCA - 2000 - CLASSIFICATION (contd)
Subsection NG (Class CS)
Core Support Structures
Reactor Vessel Internals
Subsection NH
Elevated Temperature Components
Service Temperature Over 8000F
Refers to Subsection NB
No Fracture Toughness Rules
29. 29 SECTION III - SUBSECTION NCA (contd) NCA - 3000 DUTIES AND RESPONSIBILITIES
Subcontracted Services, Calibration and Welding -
The Owner (NCA-3200)
Receives N-Certificate Holders Design Report
Reviews Design Report
Compares to Design Specification Requirements
Provides Documentation of this Review as the
Owners Review of the Design Report
Many Other Duties and Responsibilities Assigned by Section III (NCA-3220)
30. 30 SECTION III - SUBSECTION NCA (contd) NCA - 3000 Duties and Responsibilities (contd)
The N-Certificate Holder (NCA-3500)
Agreement with an AIA
Documents Quality Assurance (QA) Program
Files a QA Manual
Obtains a Certificate of Authorization
Responsible for Component Meeting all Code Requirements
Prepares and Certifies Design Report
Stress Analysis of Parts and Appurtenances
Reconciliation of Drawing Changes
Provides Design Report to ANI and Owner
Buys Material from Material Organizations
Qualifies MOs and Suppliers of Services
31. 31 SECTION III - SUBSECTION NCA (contd) NCA - 3000 DUTIES AND RESPONSIBILITIES (contd)
N-Certificate Holder (NCA-3500) (contd)
Verifies All Activities Have Been Performed
Receives Owners Review of the Design Report and Submits to ANI
Collects all Data, Including Certification of Materials
Prepares Data Report Form, Signs, and Presents it to ANI
ANI Accepts Data Package, Certifies Data Report Form, Authorizes Stamping
Manufacturer Stamps Nameplate
Ships Component
Other Duties, and Responsibilities Listed in NCA-3520
32. 32 SECTION III - SUBSECTION NCA (contd) NCA - 3000 DUTIES AND RESPONSIBILITIES (contd)
The Registered Professional Engineer
Certifies Design Specification (NCA-3255)
Certifies Design Report (NCA-3555)
Recertifies Revisions to Documents
Responsible for Accuracy and Completeness, Maintains Qualifications as Described in N626.3 - 1993 and Appendix XXIII (1996 Addenda)
The RPEs Certifying the Documents May be From the Same Organizations, But Must Be Independent
The Engineering Organization, 1973 -1976
33. 33 SECTION III - SUBSECTION NCA (contd) NCA - 3000 Duties And Responsibilities (contd)
The NA Certificate Holder (NCA-3700)
Agreement with an AIA
Document QA Program
Files QA Manual
Obtains Certificate of Authorization
Responsible for Assembly and Joining and Meeting the Applicable Requirements of the Code
Not Responsible for Design
Buys Material from Accredited MOs
Qualifies MOs and Suppliers of Services
34. 34 SECTION III - SUBSECTION NCA (contd) NCA - 3000 Duties And Responsibilities (contd)
The NA Certificate Holder (NCA-3700) (contd)
Verifies All Activities Have Been Performed
Performs System Pressure Test
Collects All Data, Including Certification of Materials
Prepares N-5 Data Report Form, Signs, Submits to ANI
ANI Accepts Data Package, Certifies Data Report Form,
Authorizes Stamping
Installer Stamps Nameplate With NA Stamp
Other Duties and Responsibilities Listed in NCA-3720.
N-Certificate Holder Taking Overall Responsibility for the Piping System Also Certifies the N-5 Data Report Form, and Stamps the System With An N Stamp. This Requirement Was Added in the Summer 1975 Addenda
35. 35 SECTION III - SUBSECTION NCA (contd) NCA - 3000 DUTIES AND RESPONSIBILITIES (contd)
The NPT Certificate Holder
Agreement With AIA
Documents and Files QA Program and Manual
Obtains a Certificate of Authorization
Not Responsible for Design
Fabricates Parts, Appurtenances, and Material Welded with Filler Metal
Responsible for Meeting Applicable Code Requirements
Buys Material from Accredited MOs
Qualifies MOs and Suppliers of Services
May have Responsibility for Part Design such as Component and Piping Supports
36. 36 SECTION III - SUBSECTION NCA (contd) NCA - 3000 DUTIES AND RESPONSIBILITIES (contd)
The NPT Certificate Holder (contd)
Verifies All Activities Have Been Performed
Performs Shop Pressure Test
Collects All Data, Including Certification Of Material
Prepares Appropriate Data Report Form (N-2, NPP-1, NF-1), Signs, Submits To ANI
ANI Accepts Data Package, Certifies Data Report Form, Authorizes Stamping
Fabricator Stamps Nameplate With NPT Stamp
Other Duties And Responsibilities Listed In NCA-3620
37. 37 SECTION III - SUBSECTION NCA (contd) NCA - 3000 DUTIES AND RESPONSIBILITIES (contd)
NCA-3800 Material Organizations (No AIA Involvement)
Document Quality System Program
Obtain Certificate of Accreditation
Alternatively, Be Qualified By Each Organization That Buys Material
Quality System Certificate (QSC) Holder Subject To Two Unannounced Audits Between Renewal Surveys
Changes to Manual Must Be Approved By ASME Before They Are Implemented
Qualified Material Supplier Cannot Qualify Another Material Supplier
Other Duties And Responsibilities Listed In NCA-3820
Changes Made In 1994 Addenda. Code Case N-483-2
NB/NC/ND/NE/NF/NG/NH 2610 Major Revision 65tf6t6565tf6t65
38. 38 SECTION III - SUBSECTION NCA (contd) NCA - 4000 QUALITY ASSURANCE
QA Program Required For All Organizations
First Required as QC In Winter 1967 Addenda
10CFR50 Appendix B Required QA In 1970
NQA-1-1979 Approved By Code in the Winter 1982 Addenda
Previous Accepted Edition Is NQA-1-1989, With 1a-1989,1b-1991 And 1c-1992 Addenda. NRC and NCA 2006 Addenda approved NQA-1-1994 Edition. NRC and SGGR Reviewing NQA-1-2004, and NQA-1-2008
Code Takes Some Exceptions
39. 39 SECTION III - SUBSECTION NCA (contd) NCA - 5000 AUTHORIZED INSPECTION
Third Party Inspection
The Authorized Nuclear Inspector
Duties And Responsibilities Listed In NCA-5220
The Authorized Inspection Agency
The N626 Documents
N626.0-1974 \
N626.1-1975 > Combined Into N626 In 1985
N626.2-1976 /
40. 40 SECTION III - SUBSECTION NCA (contd) NCA - 5000 AUTHORIZED INSPECTION (contd)
N626 Committee Reorganized As Qualifications For Authorized Inspection
The N626 Code And Addenda Published As QAI-1-1995
Approved By Section III In 1996 Addenda
Included Part 5 Which Requires Accreditation of Non-Nuclear AIA
ANI Monitors QA Program
Verifies Compliance With Code
Verifies Design Specification And Design Report Are Available And Certified
Verifies Code Compliance Of Materials
Qualification Of Welding Procedure Specifications And Of Welders
41. 41 SECTION III - SUBSECTION NCA (contd) NCA - 5000 AUTHORIZED INSPECTION (contd)
Satisfied With Nondestructive Examination (NDE) Procedures
and Qualification Of NDE Personnel
Witnesses Pressure Tests
Certifies Compliance With The Code
42. 42 SECTION III - SUBSECTION NCA (contd) NCA - 5000 AUTHORIZED INSPECTION (contd)
The Authorized Nuclear Inspector Supervisor
Supervises One Or More ANIs
Reviews And Accepts QA Manual Prior To Initial Survey
Reviews And Accepts Changes To QA Manual During Three Years Between Surveys
Changes Cannot Be Implemented Prior To Acceptance By ANIS
Audits Material Manufacturing And Supplying Activities Annually
Evaluates ANI Performance Twice/Year
Evaluates Status Of QA Program
ANIS And ANI Participate In ASME Initial And Renewal Surveys
43. 43 SECTION III - SUBSECTION NCA (contd) NCA-8000 STAMPING
Requirements For Accreditation
Authorization To Use Stamps
Agreement With AIA
Scopes Of Authorization
Extension To Other Locations
Table NCA-8100-1
Accredited Activities
Code Symbols Applied
Data Report Forms
44. 44 SECTION III - SUBSECTION NCA (contd) NCA-8000 STAMPING (contd)
Accreditation Process
Renewal Of Authorization
Requirements For Nameplates
Requirements For Stamping
Items Supplied Without Stamping
Code Data Report Forms
Shown In Appendix V
Guidelines For Completion
45. 45 SECTION III - SUBSECTION NCA (contd)
NCA - 9000 GLOSSARY OF TERMS
Definitions used in Divisions 1 and 2 of Section III
46. 46 SUBSECTION NB - CLASS 1
NB - 1100 GENERAL REQUIREMENTS
Scope
Limitations
Temperature Limits
Boundaries Of Jurisdiction
First Circumferential Weld
Face Of Flange
Face Of Threads
Rules For Attachments
Vessels, 2.5 (R x t) ; Containment Vessels, 16 t
Pumps, 4t
47. 47 SUBSECTION NB - CLASS 1 (contd)
NB - 1100 (contd)
Task Group On Attachments
Attachments
Pressure Retaining
Non-Pressure Retaining
Structural
Non-Structural
Introduced In All Subsections
NB-2190
48. 48 SUBSECTION NB - CLASS 1 (contd)
NB - 2000 MATERIAL
Limited In Number
Carbon & Low Alloy Steel to 700 F (370C)
Austenitic And High Alloy Steels To 800 F (425C)
Material Must Be Certified
Material Must Be Traceable Including Welding Material
Test Performed On Material Coupons
Plates for Pressure Vessels and All Plates 2 Thick And Greater Must Be Examined
Ultrasonically
Repairs to Material Are Limited According To Product Form
Material Inspection Is Based On Product Form
49. 49 SUBSECTION NB - CLASS 1 (contd)
NB - 2000 MATERIAL (contd)
Demonstrate Toughness
Charpy V - Notch (Cv) Test
Original Requirements Similar To Section VIII
Required 15 To 30 ft-lb Absorbed Energy For Ferritic Material
35 ft-lb For Bolting Material
Pressure Test Performed At 60 F Above (Cv) Test Temperature
50. 50 SUBSECTION NB - CLASS 1 (contd) NB - 2000 MATERIAL (contd)
Introduced Drop-Weight Test (DWT)
Described In ASTM E 208-64
Summer 1972 Addenda Changes
Tested at Lower And Lower Temperatures Until Both Specimens
Exhibited Break
NDT Temp = (Temp No Break - 10F)
Run Set Of Charpies At NDT + 60 F
All Three Cv Specimens Must Exhibit 50 ft-lb and 35 MLE
(MLE = Mils Lateral Expansion, 1 mil = 0.001)
RTNDT = (CVT - 60 F)
51. 51 SUBSECTION NB - CLASS 1 (contd)
NB - 2000 MATERIAL (contd)
Adopted E208-85 and E208-91
Brittle Weld Can Only Be Made In One Pass
Reduced NDT By ~250 F
% Shear Fracture reporting was dropped in Summer 1985
Addenda
For Piping, Pumps and Valves With t => 2-1/2 in. (75 mm)
RTNDT = (Cv - 100F)
For t < 2-1/2 in., Cv is Tested At Lowest Service
Temperature and Acceptance Is Based On MLE
Typical Charpy Curve
52. 52 SUBSECTION NB - CLASS 1 (contd)
NB - 3000 DESIGN
Design Of Vessels - NB-3200, NB-3300
Design Rules Different For Each Type Of Component
NB - 3200 - Design By Analysis
NB - 3300 - Vessels
NB - 3400 - Pumps
NB - 3500 - Valves
NB - 3600 - Piping
Design Pressure and Temperature used to Size Vessel by Formula
Design By Analysis Only Method For Class 1 Pressure Vessels
Reinforcement of Openings is Determined By Formulas
53. 53 SUBSECTION NB - CLASS 1 (contd)
NB - 3000 DESIGN (contd)
Design Based on Maximum Shear Stress Theory of Failure
Design Stress Intensities Used for Design
54. 54 SUBSECTION NB - CLASS 1 (contd)
NB - 3000 DESIGN (contd)
Stress Categories and Limits of Stress Intensity
for Design Conditions
Figure NB-3221-1- Primary and Secondary Stresses for Design
Conditions
For Level A and B Conditions
55. 55 SUBSECTION NB - CLASS 1 (contd)
NB - 3000 DESIGN (contd)
Permitted Stress Analysis
Elastic Analysis
Plastic Analysis
Elastic - Plastic Analysis
Experimental Stress Analysis
Check For Need Of Fatigue Analysis
Certification Of Design Report By RPE Is Required
Acceptability Requirements Are Listed In NB-3211
Fracture Mechanics Evaluation May Be Required
Classification of Stress Intensity
56. 56 SUBSECTION NB - CLASS 1 (contd)
NB - 3000 DESIGN (contd)
Design Of Pumps NB - 3400
Rules Apply To All Parts Except
Pump Shafts And Impellers, Non-Structural Internals, Seal Packages
Permitted Design
Design By Analysis or Experimental Stress Analysis
Casing Wall Thickness
Designed As a Vessel With Diameter Equal to Maximum Distance
From One Chamber To The Other
Other Parts Designed By Formulas
Inlet and Outlets Are Reinforced
Pump Shafts May Be Designed To Appendix S
Pump Internals To Appendix U
57. 57 SUBSECTION NB - CLASS 1 (contd)
NB - 3000 DESIGN (contd)
Design Of Valves NB - 3500
Minimum Thickness
Based On Pressure Temperature Rating For
Standard Rating Valves Listed In ASME B16.34
Interpolated For Non listed Pressure Rating Valves
Standard Design Rules
Modified Design By Analysis As Shown In NB-3530
Through NB-3550
Alternative Design Rules
Design By Analysis NB - 3200
Experimental Stress Analysis
58. 58 SUBSECTION NB - CLASS 1 (contd)
NB - 3000 DESIGN (contd)
Design Of Valves NB - 3500
Parts Of Valves May Be Designed To Rules of NB-3540
Pressure Relief Valve Design Rules Are Listed In NB-3590
Small valves, NPS 1 and less
59. 59 SUBSECTION NB - CLASS 1 (contd)
NB - 3000 DESIGN (contd)
Design Of Piping NB - 3600
Piping Is Designed By A Set Of Rules-Combination Of Design By
Formula and Design By Analysis
The Design By Formula Approach Is As Conservative As Design By
Analysis, Even If Somewhat Complicated
Design By Analysis Is Still Allowed
If Allowable Stress Limits Are Exceeded, Design Can Be Accepted
If It Meets The Requirements Of NB-3200
Branch Connections Must Be Reinforced; Design Is By Formula
60. 60 SUBSECTION NB - CLASS 1 (contd)
NB - 4000 FABRICATION AND INSTALLATION
Class 1 Fabrication Rules Have Severe Restrictions For Fabrication of Components
Must Bend Cold Formed Plate To Qualified Procedure To Determine Effect On Toughness. If Toughness Is Reduced, Material Must Be Procured With Higher Toughness Requirements
Weld Joint Design Is Generally Limited
Full Penetration Butt Welds
Out-Of-Roundness Is Limited
Fit-Up Tolerances Are Limited
Smooth Contours/Adequate Radii Required At Discontinuities
Weld Joint Categories
Used to Define Weld Locations & Establish NDE Rules
61. 61 SUBSECTION NB - CLASS 1 (contd)
NB - 4000 FABRICATION AND INSTALLATION (contd)
Welding Procedure And Welder Qualification Are Given In Section IX
Surface Condition Of Welds Must Be Suitable For Interpretation Of NDE And Must Not Mask Indications That Would Show In Final Radiographs
Owner Must Provide Accessibility For Section XI Inservice Inspection Of Welds
Post weld Heat Treatment (PWHT) Is Required For Many Materials And Thicknesses
Weld Repair Of Material Defects Are Covered By NB-2500
Weld Repair Of Welds Are Covered By NB-4400
Repairs Without PWHT Are Covered By NB-4600
62. 62 SUBSECTION NB - CLASS 1 (contd)
NB - 5000 EXAMINATION See Figure 40 - 1
Procedures For NDE Are Given In Section V
Section V Only Covers Methodology
Requirements For Examination Are Covered In NB-5200
Acceptance Standards Are Listed In NB-5300
Qualification Of NDE Personnel Is In NB-5500, In Lieu Of NQA-1, Supplement 2S2
NB-5112 Required Demonstration Of All NDE Procedures To The Satisfaction Of the ANI
Material 2 in And Greater (>51mm), Cut Edges NDE by MT or PT
Final Longitudinal and Circumferential Weld Joints Must Be RT examined, and Weld Surface And Adjacent Base Material 1/2 in (13mm) Must Be Surface Examined
63. 63 SUBSECTION NB - CLASS 1 (contd)
NB - 5000 EXAMINATION (contd)
Ultrasonic (UT) Examination Generally Not Permitted. When Allowed, Section III Rules Apply
Preservice Examination Has Been Added To Section III
All Personnel Performing NDE Are Required To Be Qualified, Trained, And Tested. The Reports Of All Examinations Must Be Maintained. Even Visual Examination Must Meet All Requirements.
64. 64 SUBSECTION NB - CLASS 1 (contd)
NB - 6000 TESTING
Completed Components Are Pressure Tested With Water To 1.25
Design Pressure. Hydrostatic Testing Is Normally Performed In The Shop, At Ambient Temperature
Test Loads Are The Pressure Loading, The Weight Of Test Fluid, And The Component Dead Weight
If Hydrostatic Test Cannot Be Performed, Pneumatic Testing At 1.1 PD is Acceptable
Testing Requirements Vary By Component
Inactive Valves Designed By Rules Are Hydrostatically Tested In Accordance With ANSI B16.34.
65. 65 SUBSECTION NB - CLASS 1 (contd)
NB-7000 PROTECTION AGAINST OVERPRESSURE
Section III Provides Rules For The Prevention Of Overpressure of Nuclear Components
A Component Can Be Completed Without These Overpressure Protection Devices, but they Must Be installed as Part of the Nuclear System
The Rules Are Similar For Classes 1, 2, And 3 Systems
Overpressure Protection Reports Are Required and They Must Be Certified By An RPE
Rules Are Provided For Both Reclosing And Nonreclosing Pressure Relief Devices
66. 66 SUBSECTION NB - CLASS 1 (contd)
NB-8000 CERTIFICATION AND STAMPING
Before An N-Certificate Holder Can Certify A Data Report And Apply the Code Symbol Stamp To The Nameplate, He Must Verify That All Code Requirements, Including The Pressure Test, Have Been Done
Design Report Must Be Prepared and Certified By An RPE
Owners Review of the Design Report Performed and Documented
All NX-8000 Articles Refer You Back To NCA-8000
67. 67 SUBSECTION NC - CLASS 2
NC - 2000 MATERIAL
Rules For Class 2 Material Are Similar To Class 1
More Materials Are Available In Section II, Part D, Subpart 1,
Tables 1A, 1B and 3
Plates Over 2 in (51mm) Are Not Subject To UT Examination
Impact Testing Is Required But Acceptance Standards Are Lower
Dropweight Test To Show That The Lowest Service Metal Temperature Is Satisfied In Accordance With Appendix R Is Alternate Test
Many More Materials Are Exempted From Toughness Testing
68. 68 SUBSECTION NC - CLASS 2 (contd)
NC - 3000 DESIGN
Design of Pumps
Generally Use Formulas Based On Vessel Design. For Some Portions Of Pumps, Any Method Proven Satisfactory May Be Used
Design of Valves
Generally Designed to Pressure-Temperature Rating Of ANSI B16.34
Design of Piping
Designed Using Simplified Formulas And System Analysis
Similar To ANSI B31.1 Design
69. 69 SUBSECTION NC - CLASS 2 (contd)
NC - 3000 DESIGN (contd)
Atmospheric Storage Tanks
Designed By Formulas
Based On API Standard 2000
Foundations Based On API 650
0 - 15 PSI Storage Tanks
Designed By Formula
Based On API Standard 620
These Rules Were Adopted In The Winter 1971 Addenda
70. 70 SUBSECTION NC - CLASS 2 (contd)
NC - 4000 FABRICATION AND INSTALLATION
Rules Are Very Similar to Class 1
Details of Construction Less Restrictive
Storage Tank Fabrication Rules Are More Restrictive than API Standards
Qualification of Weld Procedures And Welders Are Same As Class 1
Requirements For PWHT Less Stringent
NC - 5000 EXAMINATION
Longitudinal And Circumferential Welds Require RT
Surface Examination Of These Welds Is Not Required
Personnel Qualifications For NDE Are The Same As Class 1
Penetration Welds Only Require RT When They Are Butt Welds
71. 71 SUBSECTION ND - CLASS 3 ND - 2000 MATERIALS
More Materials Available
Testing Is In Accordance With Material Specifications
Design Spec. Must State Whether Impact Testing Is Required
Only Cv Testing Is Required
More Exemptions From Testing
ND - 3000 DESIGN
Same As For Class 2
Design By Analysis Alternative Not Available For Vessels
Weld Joint Efficiency Factors Used In Formulas When NDE Is Reduced
72. 72 SUBSECTION ND - CLASS 3 (contd) ND - 4000 FABRICATION
More Options Available for Fabrication Details
Welding And PWHT Rules Same As For Class 2
ND - 5000 - EXAMINATION
All Butt Welds Are Not Required To Be RT Examined In Full
Spot Radiography Permitted With Reduced Weld Joint Efficiency
NDE Based On Material Size
Construction Is More Economical
Personnel Qualification Same As Class 1
73. 73 SUBSECTION NE NE - 2000 - MATERIAL
Requirements For Materials Are Almost The Same As For Class 2
Impact Testing Is Required For All Containment Vessel Materials
Drop-weight Test Required Only For Material Over 2-1/2 in (64mm)
The Lowest Service Temperature Difference Between TNDT And Cv Temperature Is 30 F
Appendix R Referenced In The Winter 1980 Addenda. Provides A Factor A Which Is Added To TNDT To Establish The LST. It Is 30 F Up To 2-1/2 in., And Increases With Material Thickness t.
74. 74 SUBSECTION NE (contd) NE - 3000 DESIGN
Containment Vessels Are Designed By Analysis Except For Some Small Pressure Parts
Allowable Stress Intensities Are 10% Higher Than For Class 2, Due To Fact that No Overpressure Protection Devices Are Allowed
Materials Are Limited To Those For Class 1 With Some Additions
Design Stress Intensity Tables Of Appendix I - 10.0 Deleted In The 1991 Addenda, Published In Section II, Part D, Subpart 1, Tables 1A, 1B, and 3, Same As Class 2
The 10% Increased Factor Added To Formulas
75. 75 SUBSECTION NE (contd) NE - 4000 FABRICATION
Same As Class 2, But All Nozzle Opening Assemblies Must Be PWHT Before Installation In the Vessel
NE - 5000 EXAMINATION
Slightly More Restrictive Than For Class 2 Vessels
NE - 6000 TESTING
Due To Size, The Pressure Test Is Pneumatic
Weld Inspection For Leakage Is Generally Verified By An Integrated Leak Rate Test
76. 76 SUBSECTION NF NF - 2000 MATERIAL
Rules For Materials Are Similar to Class 2
Supports Are Classified According To The Class Of The Component They Support
Materials Are Listed In Tables 1A, 1B, 2A, 2B, 3 and 4 of Section II Part D
Additional Materials For Supports Were Listed In Code Case 1644, Now In Code Cases N-71 and N-249
Design Specification Must State Whether Or Not Impact Testing Is Required. If It Is, Only Cv Testing Is Required
In The 1991 Addenda, Impact Test Exemption Curves Were Added To NF
77. 77 SUBSECTION NF (contd) NF - 3000 DESIGN
Plate And Shell Type Supports
Maximum Shear Stress Theory
Supports Skirts, Saddles, Biaxial Stress
Linear Type Supports
Originally In Appendix XIII, then XVII; Now In NF-3300
Based on AISC Specification
Standard Supports Can be Both Plate and Shell or Linear Type Design
78. 78 SUBSECTION NF (contd) NF - 4000 FABRICATION
Rules Are Similar To Class 2 But Less Restrictive
NF - 5000 EXAMINATION
Depends On Class Of Component Being Supported
More Lenient Than Rules For The Supported Component
More Extensive Visual Examination
GENERAL COMMENTS
Supports Fabricated By Welding Are NPT Stamped. If Specified to The 1998 Edition, 1999 Addenda, Stamping Is Not Required
Standard Supports Supplied As Material (NF-1214) Can Be Supplied With Certificates Of Compliance (Up to 1998 Addenda)
79. 79 SUBSECTION NG CORE SUPPORT STRUCTURES NG - 2000 MATERIALS
Core Support Structures Are Internal Structural Components, Not Pressure Retaining
Rules For Materials Almost Like Class 1
Impact Testing Is Different, Material 2 in (51mm) And Under Is Accepted By MLE
Material Over 2 in. Tested for RTNDT, Like Class 1
80. 80 SUBSECTION NG CORE SUPPORT STRUCTURES (contd) NG - 3000 DESIGN
Design By Analysis And Maximum Shear Stress Theory
Allowable Stress Limits Different From Class 1
Based On A Factor On Yield Strength Or Ultimate Tensile
Strength At Temperature
Quality Factor On Stress And Fatigue Factor Are Determined By Joint Design And Amount Of NDE
NG - 4000 FABRICATION
Almost Identical To Class 1 Rules
Choice Of Weld Detail Determines Quality Factor
81. 81 SUBSECTION NG CORE SUPPORT STRUCTURES (contd) NG - 5000 EXAMINATION
More Ultrasonic And Visual Examination Used
Code Permits Designer To Define Joints As A Requirement For Examination
NG - 8000 CERTIFICATION
Rules Were Changed So That Core Support Structures Receive An N Stamp. Thus, N Certificate Holder Responsible For Structural Integrity and Meeting All Section III Requirements
Code Class is CS
82. 82 SUBSECTION NH ELEVATED TEPERATURE SERVICE CODE CASES N - 47 THROUGH N 51
These Cases Were 1332 through 1336 before 1977 Edition
Incorporated As Subsection NH In the 1995 Addenda
Cases Expired Six Months After Publication of NH
83. 83 PART IVASME NUCLEAR ACCREDITATION Service Provided By ASME
Organization Applies to ASME For Accreditation To Perform Activities In Compliance With The Rules Of Section III
Requirements Are Detailed In NCA - 8000
Evaluation Performed By Survey Teams
Results Of Survey Are Reported to The Subcommittee On Nuclear Accreditation(SC-NA)
SC-NA Approves Team Report And Awards Certificates
Staff Issues Certificates Upon Payment Of Invoice
84. 84 PART IVASME NUCLEAR ACCREDITATION (contd) Types Of Certificates
Certificate of Accreditation
Owners Certificate
Agreement with AIA
Completes N-3 Data Report Form
Corporate Certificates
Can be Extended to Other Sites
Agreement with AIA
Code Symbol Stamps Not Provided
Replaced Interim Letter on July 1, 1998
Quality System Certificates
Material Organizations Manufacturing and/or Supplying Material
No Agreement With AIA
No Welded Fabrication Permitted
Weld Repairs of Material per NX-2500 is Permitted
85. 85 PART IVASME NUCLEAR ACCREDITATION (contd) Types Of Certificates (contd)
N Certificate Holder Components (Includes Piping Systems)
NA Certificate Holder Shop and Field Installation
NPT Certificate Holder - Parts, Piping Subassemblies, Appurtenances
NV Certificate Holder - Pressure Relief Devices, Safety Valves
NS Certificate Holder - Supports (Beginning with 1999 Addenda)
Scopes Can Describe Activities Performed At Other Locations
Corporate Certificates Can Be Extended To Other Sites
Scopes Can Permit Manufacture Or Supply Of Material
All Require Agreement With AIA
Utilities Can Get N-Type Certificates For a Nuclear Plant Site
86. 86 PART IVASME NUCLEAR ACCREDITATION (contd) Terms of Certificates
All Certificates are Issued for 3 years
Issuance and Renewal of Certificates
Owners Certificates
A Construction Permit or Docket Date Issued by USNRC is Prerequisite
Renewal is by Mail
Application must be Made 90 days in Advance of Expiration
Other Certificates
Application for Initial Certificate When Ready for Survey
Renewal Application Required at least 6 Months Before Expiration
Deposit Must be Submitted With Application
87. 87 PART IVASME NUCLEAR ACCREDITATION (contd) Accreditation Process
Same For Initial Issuance and For Renewal
Initial Application Made After ANIS or a Consultant (for QSC) is Satisfied with Readiness
Process Differs for Various Certificates
Owners Certificate
Initial Application Results in an Interview
ASME Interview Team: ASME Team Leader, AIA Representative and Jurisdictional Authority or National Board Representative
QA Program Can Be 10CRF50 Appendix B
88. 88 PART IVASME NUCLEAR ACCREDITATION (contd) Accreditation Process (contd)
Quality System Certificates
Application Results In a Scheduled Survey
Survey Team
Team Leader
Team Member
Recommendation For Issuance Or Renewal Subject To
Approval By SC-NA And Payment Of Invoice
Fee Includes At Least 2 Unannounced Audits By A Single Team Member
89. 89 PART IVASME NUCLEAR ACCREDITATION (contd) Accreditation Process (contd)
Certificates Of Authorization
Application Results In Scheduled Survey
Survey Team
Team Leader
Team Member
National Board Representative
ANIS And ANI
Jurisdictional Authority and Regulatory Authority Invited
Approval By SC-NA And Payment of Invoice is Required
90. 90 PART IVASME NUCLEAR ACCREDITATION (contd) Accreditation Process (contd)
Scope of Survey
Issuance or Renewal Of Certificates Is Accomplished By Completing A Successful Survey Performed By An ASME Team, Including
Review For Approval Of The QA Manual
Acceptance Of A Demonstration Which Implements The program
Receiving A Favorable Team Recommendation
Successful Completion Of SC-NA Ballot Process
Notification By Staff And Submittal Of Invoices
Payment Of Invoices And Cost Of Code Symbol Stamps
Receipt Of Certificates
91. 91 PART IVASME NUCLEAR ACCREDITATION (contd) Accreditation Process (contd)
Scope of Survey (contd)
Failure Of A Renewal Survey Would Require A Resurvey, With Potential Loss Of the Certificates During The Appeal Process
Due Process Permits Extension Of Certificates If All Required Steps Are Met
Survey Can Only Be Aborted by Request of Applicant
ASME Staff Must Be Notified and Has to Approve
92. 92 PART IVASME NUCLEAR ACCREDITATION (contd) Accreditation Process (contd)
Contractual Requirements With AIA
All Certificates Other Than QSC Require Agreement With AIA
AIA Provides Third Party Inspection Services With One or More ANIs, Supervised by an ANIS
Survey Participation
ANI and ANIS Participate in Survey
ANIS Participates in Review/Acceptance of Final Version of QA Manual
Observers Can Be Part of Team, As It Is Necessary to Train SC-NA Members and Alternates, New Candidates for ANI, and New Candidates for ASME Team Members
Observers Have No Vote on The Team
93. 93 PART IVASME NUCLEAR ACCREDITATION (contd) QSC Certificates Manual Revisions
Manual Revisions Between Surveys Must Be Submitted To ASME For Review And Acceptance By A Member Of The Survey Team
Manual Revisions Should Not Be Implemented Until Approved By ASME
QSC Applicants Pay For 2.6 Unannounced Audits During The Three Year Term Of The Certificates. Twenty Percent Of The MOs Will Be Subjected At Random To A Third Unannounced Audit
All Changes To The Manual Are Subject To Verification During The Audits And Surveys
94. 94 PART IIASME NUCLEAR ACCREDITATION (contd) New Developments In ASME Accreditation
Accreditation of AIAs
The Code Moved To Add Part 4 To N626, And It Was Approved In The 1992 Edition. Applied to Nuclear AIAs
Nuclear AIAs Were First Accredited In 1993
QAI-1-1995 Added Part 5, Which Requires Accreditation Of Non Nuclear AIAs
SC-NA First Handled Part 4 Nuclear AIA Accreditation
95. 95 PART IIASME NUCLEAR ACCREDITATION (contd) New Developments In ASME Accreditation
Board First Established As The Advisory Board On Accreditation and Certification (BAC)
June 1993 Changed To Supervisory Board On Accreditation, Registration And Certification (BARC)
Today It Is The Board On Conformity Assessment (BCA)
N626 Committee Moved From Board Nuclear Codes And Standards To BCA
N626 Committee Now QAI, Committee On Qualification For Authorized Inspection
AIA Accreditation Now Under QAI Committee
96. 96 PART IIASME NUCLEAR ACCREDITATION (contd) New Developments In ASME Accreditation (contd)
The NS Certificate - See Figure 27-1 - Audience Handout
Agreement With AIA
Limited To Piping And Standard Supports
Stamping Of Welded Supports Was Introduced In The Winter 1975 Addenda
The NS Certificate Introduced 1998 Edition, 1999 Addenda
Eliminates Standard Supports Supplied As Material Under NF-1214
Permits Design Responsibility
Permits Welded Fabrication
Stamping Of Welded Supports Is Not Required
New Certificate Of Conformance, Form NS-1
97. 97 CONCLUSION Presentation Included History And Philosophy Of ASME Section III
Limitation In Time Prevented In-Depth Coverage
Assumed Audience Had Some Knowledge Of Nuclear Code
Courses Available Through ASME Continuing Education Institute
Lack Of New Nuclear Plants In US Has Not Slowed Development Of Section III
Standard Has Gained Acceptance Of World Nuclear Community
Participation Includes Canada, Japan, Korean, Spanish, South African, UK, And Russian Members And Globalization Is Proceeding