INTRODUCTION TO THE ASME Boiler & Pressure Vessel

1
INTRODUCTION TO THE ASMEBoiler Pressure Vessel
Code

• SECTION III, DIVISION 1
• Nuclear Power Plant
• Components
• 
  BY
• Marcus N. Bressler, PE
• 
  mbresslerpe_at_juno.com
• 
  05/13/2008

2
SECTION III EVOLUTION

• First Published in 1963
• Transition from ASA to USAS to ANSI
• 1971 Edition, Nuclear Power Plant Component
• 2007 Edition, ASME B P V Code
• Code Publication Cycle

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
REFERENCED SECTIONS

• SECTION II - Materials
• SECTION V - Nondestructive Examination
• SECTION IX - Welding And Brazing Qualification

5
U.S. REGULATORY ISSUES

• The ASME Code as Law
• Synopsis of BPV 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
(No Transcript)
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
INTERPRETATIONS

• Publication
• Used as reference
• Cannot change Code requirements
• Volume 58, July 1, 2008

9
MANDATORY APPENDICES

• Publication
• Numbering
• Uses Roman Numeral System

10
NONMANDATORY APPENDICES

• Coverage and Use
• Numbering
• Uses Alphabetic Capital Letters, but Try not to
  Use those that are aqkso Roman Numerals

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
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
COMMON TERMINOLOGY (contd)

• Component
• Piping System
• Part
• Appurtenance
• Piping Subassembly
• Support
• NPT Code Symbol Stamp

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
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
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
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
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
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
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
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
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
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
SECTION III - SUBSECTION NCA (contd)

• NCA - 2000 - CLASSIFICATION
• NCA-2140 LIMITS AND LOADINGS
• Design
• Operating
• Testing

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
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
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
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
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
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
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
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
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
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
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
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
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

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
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 gt Combined Into N626 In 1985
• N626.2-1976 /

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
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
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
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
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
SECTION III - SUBSECTION NCA (contd)

• NCA - 9000 GLOSSARY OF TERMS
• Definitions used in Divisions 1 and 2 of Section
  III

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)½ Containment Vessels, 16 t
• Pumps, 4t

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
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
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
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
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 gt 2-1/2 in.
  (75 mm)
• RTNDT (Cv - 100F)
• For t lt 2-1/2 in., Cv is Tested At Lowest Service
• Temperature and Acceptance Is Based On MLE
• Typical Charpy Curve

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
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
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
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
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
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
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
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
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
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
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 (gt51mm), 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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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