Introduction to ASME Section III Div1
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INTRODUCTION TO THE ASMEBoiler & Pressure Vessel Code:
SECTION III, DIVISION 1Nuclear Power Plant
ComponentsBY
Marcus N. Bressler, PE [email protected]
05/13/2008
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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
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PRIMARY NUCLEAR SECTIONSSection III, Nuclear Plant Components
Division 1 - Metallic ComponentsDivision 2 - Concrete Containment VesselsDivision 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 PlantsDivision 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)
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REFERENCED SECTIONS
SECTION II - Materials
SECTION V - Nondestructive Examination
SECTION IX - Welding And Brazing Qualification
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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
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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
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INTERPRETATIONS
Publication
Used as reference
Cannot change Code requirements
Volume 58, July 1, 2008
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MANDATORY APPENDICES
Publication
Numbering
Uses Roman Numeral System
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NONMANDATORY APPENDICES
Coverage and Use
Numbering
Uses Alphabetic Capital Letters, but Try not to Use those that are aqkso Roman Numerals
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APPLICABILITY OF SECTION III AND XI RULES
COMMON USE OF BOTH SECTIONSDUTIES AND RESPONSIBILITIES OF PARTIESPARTIES INVOLVED
OwnerN -Type Certificate HolderQSC Certificate HolderAuthorized Inspection Agency (AIA)
Authorized Nuclear Inspector Supervisor (ANIS)Authorized Nuclear Inspector (ANI)Enforcement AuthorityRegulatory Authority
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COMMON TERMINOLOGY
Owner
Construction
ASME Certificate Of Authorization
Manufacturer (N-Certificate Holder)
Installer (NA-Certificate Holder)
Fabricator (NPT-Certificate Holder)
Authorized Nuclear Inspector (ANI)
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COMMON TERMINOLOGY (cont’d)
Component
Piping System
Part
Appurtenance
Piping Subassembly
Support
NPT Code Symbol Stamp
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COMMON TERMINOLOGY (cont’d)
NA Code Symbol Stamp
MaterialSeamless Or Welded Without Filler Metal Added
Welded With Filler Metal Added (NPT-Stamp)
Data Report Form
Design SpecificationBasis For Construction
Certified By Registered Professional Engineer
Provided By Owner or Designee
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COMMON TERMINOLOGY (cont’d)Design Report
Provided by N-Certificate Holder
Design Calculations and Stress Analysis
When required, Certified by RPE
Design Output DrawingsDesign Drawings
Correlated With Design Reports
Load Capacity Data Sheets
Design Report Summaries
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COMMON TERMINOLOGY (cont’d)
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)
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COMMON TERMINOLOGY (cont’d)
ASME Survey Team for Material OrganizationsTeam Leader & Team Member
Observers (When Assigned) [Have No Vote}
Unannounced Audits for Material OrganizationsTeam Leader Only
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COMMON TERMINOLOGY (cont’d)Inspection
Performed by an ANI
ExaminationsPerformed by Qualified PersonnelNondestructive Examinations
RadiographyMagnetic ParticleEddy Current UltrasonicLiquid PenetrantVisual
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COMMON TERMINOLOGY (cont’d)
Testing
Hydrostatic Pressure Test
Pneumatic Pressure Test
Registered Professional EngineerCertifies Design Input Documents
Certifies Design Output Documents
Certifies Overpressure Protection Report
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GENERAL REQUIREMENTS OF SECTION III
Subsection NCAGeneral 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
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SECTION III - SUBSECTION NCA
NCA - 1100 SCOPEApplies to New Construction
Provides ExclusionsValve Operators, Controllers
Pump Impellers, Drivers
Intervening Elements
Instruments and Fluid Filled Tubing
Instrument, Control and Sampling Piping
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SECTION III - SUBSECTION NCA (cont’d)NCA - 1140 Effective Code
Prior to Winter 1977 Addenda Contract Date Establishes Code of Record
Winter 1977 Addenda Code Effective Date Set by OwnerMust be Listed in Design Specification
Duplicate and Replicate Plants
Three year Window, NRC Provided for Five Years
Winter 1981 Addenda Existing Materials
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SECTION III - SUBSECTION NCA (cont’d)
NCA - 2000 �LASSIFICATIONCOde Does Not ClassifyClassification Guidance Provided by
Stat% or Federal Authorities10CFR50.55aRegulatory Guide 1.26 (RG 1.26)NRC Standard Review PlansAmerican Nuclear Society
Section III Provides Construction Rules for Each ClassMultiple Class Components or Optional Use of ClassesListed in the Design Specification
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SECTION III - SUBSECTION NCA (cont’d)
NCA - 2000 - CLASSIFICATIONNCA-2140 LIMITS AND LOADINGS
Design
Operating
Testing
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SECTION III - SUBSECTION NCA (cont’d)
NCA - 2000 - CLASSIFICATION (cont’d)Included in RG 1.26 and 10 CFR 50.55a
Quality Group A
Class 1 Components (NB) Reactor Pressure VesselPressurizer Vessel (PWR)Reactor Coolant PumpsSteam Generators (PWR)Reactor Coolant PipingLine ValvesSafety Valves
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SECTION III - SUBSECTION NCA (cont’d)
NCA - 2000 - CLASSIFICATION (cont’d) Class 2 Components Important to Safety (RG 1.26 QG B)
Emergency Core CoolingPost Accident Heat RemovalPost Accident Fission Product RemovalIncludes Vessels, Pumps, Valves, Piping, Storage Tanks, and Supports
Class 3 Components Needed for Operation (RG 1.26 QG C)Cooling Water SystemsAuxiliary Feedwater SystemsIncludes Vessels, Pumps, Valves, Piping, Storage Tanks, and Supports
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SECTION III - SUBSECTION NCA (cont’d)
NCA - 2000 - CLASSIFICATION (cont’d)Class MC Components (Subsection MC)
Containment VesselPenetration AssembliesDoes not Include Piping, Pumps and ValvesPiping through Containment Must be Class 1 or Class 2
Subsection NF - SupportsPlate and Shell TypeLinear TypeStandard SupportsSupport Class is the Class of the Component Supported
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SECTION III - SUBSECTION NCA (cont’d)
NCA - 2000 - CLASSIFICATION (cont’d)Subsection NG (Class CS)
Core Support Structures
Reactor Vessel Internals
Subsection NHElevated Temperature Components
Service Temperature Over 8000F
Refers to Subsection NB
No Fracture Toughness Rules
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SECTION III - SUBSECTION NCA (cont’d)
NCA - 3000 DUTIES AND RESPONSIBILITIESSubcontracted Services, Calibration and Welding -
The Owner (NCA-3200) Receives N-Certificate Holder’s 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)
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SECTION III - SUBSECTION NCA (cont’d)
NCA - 3000 Duties and Responsibilities (cont’d)The N-Certificate Holder (NCA-3500)
Agreement with an AIADocuments Quality Assurance (QA) ProgramFiles a QA ManualObtains a Certificate of AuthorizationResponsible for Component Meeting all Code Requirements Prepares and Certifies Design ReportStress Analysis of Parts and AppurtenancesReconciliation of Drawing ChangesProvides Design Report to ANI and Owner Buys Material from Material OrganizationsQualifies MOs and Suppliers of Services
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SECTION III - SUBSECTION NCA (cont’d)
NCA - 3000 DUTIES AND RESPONSIBILITIES (cont’d)N-Certificate Holder (NCA-3500) (cont’d)
Verifies All Activities Have Been PerformedReceives Owner’s Review of the Design Report and Submits to ANICollects all Data, Including Certification of MaterialsPrepares Data Report Form, Signs, and Presents it to ANIANI Accepts Data Package, Certifies Data Report Form, AuthorizesStampingManufacturer Stamps NameplateShips ComponentOther Duties, and Responsibilities Listed in NCA-3520
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SECTION III - SUBSECTION NCA (cont’d)NCA - 3000 DUTIES AND RESPONSIBILITIES (cont’d)
The Registered Professional EngineerCertifies Design Specification (NCA-3255)Certifies Design Report (NCA-3555)Recertifies Revisions to DocumentsResponsible for Accuracy and Completeness, Maintains Qualifications as Described in N626.3 - 1993 and Appendix XXIII (1996 Addenda) The RPE’s Certifying the Documents May be From the Same Organizations, But Must Be IndependentThe Engineering Organization, 1973 -1976
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SECTION III - SUBSECTION NCA (cont’d)
NCA - 3000 Duties And Responsibilities (cont’d)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
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SECTION III - SUBSECTION NCA (cont’d)NCA - 3000 Duties And Responsibilities (cont’d)
The NA Certificate Holder (NCA-3700) (cont’d)Verifies All Activities Have Been PerformedPerforms System Pressure TestCollects All Data, Including Certification of MaterialsPrepares N-5 Data Report Form, Signs, Submits to ANIANI Accepts Data Package, Certifies Data Report Form,Authorizes StampingInstaller Stamps Nameplate With “NA” StampOther 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
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SECTION III - SUBSECTION NCA (cont’d)
NCA - 3000 DUTIES AND RESPONSIBILITIES (cont’d)
The NPT Certificate Holder Agreement With AIA
Documents and Files QA Program and ManualObtains a Certificate of AuthorizationNot Responsible for DesignFabricates Parts, Appurtenances, and Material Welded with Filler MetalResponsible for Meeting Applicable Code RequirementsBuys Material from Accredited MO’sQualifies MOs and Suppliers of ServicesMay have Responsibility for Part Design such as Component and Piping Supports
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SECTION III - SUBSECTION NCA (cont’d)NCA - 3000 DUTIES AND RESPONSIBILITIES (cont’d)
The NPT Certificate Holder (cont’d)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, AuthorizesStamping
Fabricator Stamps Nameplate With “NPT” Stamp
Other Duties And Responsibilities Listed In NCA-3620
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SECTION III - SUBSECTION NCA (cont’d)
NCA - 3000 DUTIES AND RESPONSIBILITIES (cont’d)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
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SECTION III - SUBSECTION NCA (cont’d)
NCA - 4000 QUALITY ASSURANCEQA 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
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SECTION III - SUBSECTION NCA (cont’d)
NCA - 5000 AUTHORIZED INSPECTIONThird Party Inspection
The Authorized Nuclear Inspector
Duties And Responsibilities Listed In NCA-5220
The Authorized Inspection Agency
The N626 DocumentsN626.0-1974 \
N626.1-1975 > Combined Into N626 In 1985
N626.2-1976 /
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SECTION III - SUBSECTION NCA (cont’d)
NCA - 5000 AUTHORIZED INSPECTION (cont’d)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
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SECTION III - SUBSECTION NCA (cont’d)
NCA - 5000 AUTHORIZED INSPECTION (cont’d)Satisfied With Nondestructive Examination (NDE) Procedures
and Qualification Of NDE Personnel
Witnesses Pressure Tests
Certifies Compliance With The Code
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SECTION III - SUBSECTION NCA (cont’d)
NCA - 5000 AUTHORIZED INSPECTION (cont’d)The Authorized Nuclear Inspector Supervisor
Supervises One Or More ANIsReviews And Accepts QA Manual Prior To Initial SurveyReviews And Accepts Changes To QA Manual During Three Years Between SurveysChanges Cannot Be Implemented Prior To Acceptance By ANISAudits Material Manufacturing And Supplying Activities AnnuallyEvaluates ANI Performance Twice/YearEvaluates Status Of QA Program
ANIS And ANI Participate In ASME Initial And Renewal Surveys
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SECTION III - SUBSECTION NCA (cont’d)
NCA-8000 STAMPINGRequirements For AccreditationAuthorization To Use StampsAgreement With AIAScopes Of AuthorizationExtension To Other LocationsTable NCA-8100-1
Accredited ActivitiesCode Symbols AppliedData Report Forms
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SECTION III - SUBSECTION NCA (cont’d)
NCA-8000 STAMPING (cont’d)Accreditation Process
Renewal Of Authorization
Requirements For Nameplates
Requirements For Stamping
Items Supplied Without Stamping
Code Data Report FormsShown In Appendix V
Guidelines For Completion
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SECTION III - SUBSECTION NCA (cont’d)
NCA - 9000 GLOSSARY OF TERMS
Definitions used in Divisions 1 and 2 of Section III
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SUBSECTION NB - CLASS 1NB - 1100 GENERAL REQUIREMENTS
ScopeLimitations
Temperature Limits
Boundaries Of JurisdictionFirst Circumferential WeldFace Of FlangeFace Of Threads
Rules For AttachmentsVessels, 2.5 (R x t)½ ; Containment Vessels, 16 tPumps, 4t
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SUBSECTION NB - CLASS 1 (cont’d)
NB - 1100 (cont’d)Task Group On Attachments Attachments
Pressure RetainingNon-Pressure RetainingStructuralNon-Structural
Introduced In All Subsections NB-2190
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SUBSECTION NB - CLASS 1 (cont’d)
NB - 2000 MATERIALLimited In NumberCarbon & Low Alloy Steel to 700 F (370C)Austenitic And High Alloy Steels To 800 F (425C)Material Must Be CertifiedMaterial Must Be Traceable Including Welding MaterialTest Performed On Material CouponsPlates for Pressure Vessels and All Plates 2” Thick And Greater Must Be ExaminedUltrasonicallyRepairs to Material Are Limited According To Product FormMaterial Inspection Is Based On Product Form
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SUBSECTION NB - CLASS 1 (cont’d)
NB - 2000 MATERIAL (cont’d)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
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SUBSECTION NB - CLASS 1 (cont’d)NB - 2000 MATERIAL (cont’d)
Introduced Drop-Weight Test (DWT)Described In ASTM E 208-64 Summer 1972 Addenda ChangesTested at Lower And Lower Temperatures Until Both SpecimensExhibited “Break”
NDT Temp = (Temp No Break - 10F)Run Set Of Charpies At NDT + 60 FAll Three Cv Specimens Must Exhibit 50 ft-lb and 35 MLE
(MLE = Mils Lateral Expansion, 1 mil = 0.001”)RTNDT = (CVT - 60 F)
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SUBSECTION NB - CLASS 1 (cont’d)
NB - 2000 MATERIAL (cont’d)Adopted E208-85 and E208-91
Brittle Weld Can Only Be Made In One PassReduced NDT By ~250 F
% Shear Fracture reporting was dropped in Summer 1985 AddendaFor 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 ServiceTemperature and Acceptance Is Based On MLETypical Charpy Curve
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SUBSECTION NB - CLASS 1 (cont’d)
NB - 3000 DESIGNDesign Of Vessels - NB-3200, NB-3300Design Rules Different For Each Type Of Component
NB - 3200 - Design By AnalysisNB - 3300 - VesselsNB - 3400 - PumpsNB - 3500 - ValvesNB - 3600 - Piping
Design Pressure and Temperature used to Size Vessel by FormulaDesign By Analysis Only Method For Class 1 Pressure VesselsReinforcement of Openings is Determined By Formulas
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SUBSECTION NB - CLASS 1 (cont’d)
NB - 3000 DESIGN (cont’d)
Design Based on Maximum Shear Stress Theory of Failure
Design Stress Intensities Used for Design
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SUBSECTION NB - CLASS 1 (cont’d)
NB - 3000 DESIGN (cont’d)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
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SUBSECTION NB - CLASS 1 (cont’d)
NB - 3000 DESIGN (cont’d)Permitted Stress Analysis
Elastic AnalysisPlastic AnalysisElastic - Plastic AnalysisExperimental Stress Analysis
Check For Need Of Fatigue AnalysisCertification Of Design Report By RPE Is RequiredAcceptability Requirements Are Listed In NB-3211Fracture Mechanics Evaluation May Be RequiredClassification of Stress Intensity
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SUBSECTION NB - CLASS 1 (cont’d)NB - 3000 DESIGN (cont’d)
Design Of Pumps NB - 3400Rules Apply To All Parts Except
Pump Shafts And Impellers, Non-Structural Internals, Seal PackagesPermitted Design
Design By Analysis or Experimental Stress AnalysisCasing Wall Thickness
Designed As a Vessel With Diameter Equal to Maximum DistanceFrom One Chamber To The Other
Other Parts Designed By FormulasInlet and Outlets Are ReinforcedPump Shafts May Be Designed To Appendix SPump Internals To Appendix U
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SUBSECTION NB - CLASS 1 (cont’d)NB - 3000 DESIGN (cont’d)
Design Of Valves NB - 3500Mynimum Thickness
Based On Pressure Temperature Rating ForStandard Rating Valves Listed In ASME B16.34Interpolated For Non listed Pressure Rating Valves
Standard Design RulesModified Design By Analysis As Shown In NB-3530Through NB-3550
Alternative Design RulesDesign By Analysis NB - 3200Experimental Stress Analysis
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SUBSECTION NB - CLASS 1 (cont’d)
NB - 3000 DESIGN (cont’d)
Design Of Valves NB - 3500Parts 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
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SUBSECTION NB - CLASS 1 (cont’d)
NB - 3000 DESIGN (cont’d)
Design Of Piping NB - 3600Piping 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
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SUBSECTION NB - CLASS 1 (cont’d)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 RequirementsWeld Joint Design Is Generally Limited Full Penetration Butt WeldsOut-Of-Roundness Is LimitedFit-Up Tolerances Are LimitedSmooth Contours/Adequate Radii Required At Discontinuities
Weld Joint CategoriesUsed to Define Weld Locations & Establish NDE Rules
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SUBSECTION NB - CLASS 1 (cont’d)NB - 4000 FABRICATION AND INSTALLATION (cont’d)
Welding Procedure And Welder Qualification Are Given In Section IXSurface Condition Of Welds Must Be Suitable For Interpretation Of NDE And Must Not Mask Indications That Would Show In Final RadiographsOwner Must Provide Accessibility For Section XI Inservice Inspection Of WeldsPost weld Heat Treatment (PWHT) Is Required For Many Materials And ThicknessesWeld Repair Of Material Defects Are Covered By NB-2500Weld Repair Of Welds Are Covered By NB-4400Repairs Without PWHT Are Covered By NB-4600
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SUBSECTION NB - CLASS 1 (cont’d)NB - 5000 EXAMINATION – See Figure 40 - 1
Procedures For NDE Are Given In Section VSection V Only Covers MethodologyRequirements For Examination Are Covered In NB-5200Acceptance Standards Are Listed In NB-5300Qualification Of NDE Personnel Is In NB-5500, In Lieu Of NQA-1, Supplement 2S2NB-5112 Required Demonstration Of All NDE Procedures To The Satisfaction Of the ANIMaterial 2 in And Greater (>51mm), Cut Edges NDE by MT or PTFinal Longitudinal and Circumferential Weld Joints Must Be RT examined, and Weld Surface And Adjacent Base Material 1/2 in (13mm) Must Be Surface Examined
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SUBSECTION NB - CLASS 1 (cont’d)
NB - 5000 EXAMINATION (cont’d)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.
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SUBSECTION NB - CLASS 1 (cont’d)NB - 6000 TESTING
Completed Components Are Pressure Tested With Water To 1.25Design Pressure. Hydrostatic Testing Is Normally Performed In The Shop, At Ambient TemperatureTest 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.
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SUBSECTION NB - CLASS 1 (cont’d)
NB-7000 PROTECTION AGAINST OVERPRESSURESection III Provides Rules For The Prevention Of Overpressure of Nuclear ComponentsA Component Can Be Completed Without These Overpressure Protection Devices, but they Must Be installed as Part of the Nuclear SystemThe Rules Are Similar For Classes 1, 2, And 3 SystemsOverpressure Protection Reports Are Required and They Must Be Certified By An RPE Rules Are Provided For Both Reclosing And Nonreclosing Pressure Relief Devices
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SUBSECTION NB - CLASS 1 (cont’d)
NB-8000 CERTIFICATION AND STAMPINGBefore 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 RPEOwner’s Review of the Design Report Performed and DocumentedAll NX-8000 Articles Refer You Back To NCA-8000
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SUBSECTION NC - CLASS 2
NC - 2000 MATERIALRules For Class 2 Material Are Similar To Class 1More Materials Are Available In Section II, Part D, Subpart 1,Tables 1A, 1B and 3Plates Over 2 in (51mm) Are Not Subject To UT ExaminationImpact Testing Is Required But Acceptance Standards Are LowerDropweight 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
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SUBSECTION NC - CLASS 2 (cont’d)
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 ValvesGenerally Designed to Pressure-Temperature Rating Of ANSI B16.34
Design of PipingDesigned Using Simplified Formulas And System Analysis
Similar To ANSI B31.1 Design
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SUBSECTION NC - CLASS 2 (cont’d)
NC - 3000 DESIGN (cont’d)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
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SUBSECTION NC - CLASS 2 (cont’d)NC - 4000 FABRICATION AND INSTALLATION
Rules Are Very Similar to Class 1Details of Construction Less RestrictiveStorage Tank Fabrication Rules Are More Restrictive than API StandardsQualification of Weld Procedures And Welders Are Same As Class 1
Requirements For PWHT Less Stringent
NC - 5000 EXAMINATIONLongitudinal And Circumferential Welds Require RTSurface Examination Of These Welds Is Not RequiredPersonnel Qualifications For NDE Are The Same As Class 1Penetration Welds Only Require RT When They Are Butt Welds
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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 DESIGNSame As For Class 2
Design By Analysis Alternative Not Available For Vessels
Weld Joint Efficiency Factors Used In Formulas When NDE Is Reduced
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SUBSECTION ND - CLASS 3 (cont’d)
ND - 4000 FABRICATIONMore Options Available for Fabrication Details
Welding And PWHT Rules Same As For Class 2
ND - 5000 - EXAMINATIONAll 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
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SUBSECTION NENE - 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 AFactor “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.
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SUBSECTION NE (cont’d)
NE - 3000 DESIGNContainment 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
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SUBSECTION NE (cont’d)
NE - 4000 FABRICATIONSame As Class 2, But All Nozzle Opening Assemblies Must Be PWHT Before Installation In the Vessel
NE - 5000 EXAMINATIONSlightly More Restrictive Than For Class 2 Vessels
NE - 6000 TESTINGDue To Size, The Pressure Test Is Pneumatic
Weld Inspection For Leakage Is Generally Verified By An Integrated Leak Rate Test
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SUBSECTION NFNF - 2000 MATERIAL
Rules For Materials Are Similar to Class 2Supports Are Classified According To The Class Of The Component They SupportMaterials Are Listed In Tables 1A, 1B, 2A, 2B, 3 and 4 of Section II Part DAdditional Materials For Supports Were Listed In Code Case 1644,Now In Code Cases N-71 and N-249Design Specification Must State Whether Or Not Impact Testing IsRequired. If It Is, Only Cv Testing Is RequiredIn The 1991 Addenda, Impact Test Exemption Curves Were Added To NF
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SUBSECTION NF (cont’d)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
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SUBSECTION NF (cont’d)NF - 4000 FABRICATION
Rules Are Similar To Class 2 But Less Restrictive
NF - 5000 EXAMINATIONDepends On Class Of Component Being SupportedMore Lenient Than Rules For The Supported ComponentMore Extensive Visual Examination
GENERAL COMMENTSSupports 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)
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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
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SUBSECTION NG CORE SUPPORT STRUCTURES (cont’d)
NG - 3000 DESIGNDesign By Analysis And Maximum Shear Stress TheoryAllowable Stress Limits Different From Class 1Based On A Factor On Yield Strength Or Ultimate TensileStrength At TemperatureQuality Factor On Stress And Fatigue Factor Are Determined By Joint Design And Amount Of NDE
NG - 4000 FABRICATIONAlmost Identical To Class 1 RulesChoice Of Weld Detail Determines Quality Factor
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SUBSECTION NG CORE SUPPORT STRUCTURES (cont’d)
NG - 5000 EXAMINATIONMore Ultrasonic And Visual Examination UsedCode Permits Designer To Define Joints As A Requirement For Examination
NG - 8000 CERTIFICATIONRules 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”
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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
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PART IVASME NUCLEAR ACCREDITATION
Service Provided By ASME
Organization Applies to ASME For Accreditation ToPerform Activities In Compliance With The Rules OfSection 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
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PART IVASME NUCLEAR ACCREDITATION (cont’d)
Types Of CertificatesCertificate of Accreditation
Owner’s CertificateAgreement with AIACompletes N-3 Data Report Form
Corporate CertificatesCan be Extended to Other SitesAgreement with AIA Code Symbol Stamps Not Provided
Replaced Interim Letter on July 1, 1998
Quality System CertificatesMaterial Organizations Manufacturing and/or Supplying MaterialNo Agreement With AIANo Welded Fabrication PermittedWeld Repairs of Material per NX-2500 is Permitted
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PART IVASME NUCLEAR ACCREDITATION (cont’d)
Types Of Certificates (cont’d)N Certificate Holder – Components (Includes Piping Systems)NA Certificate Holder – Shop and Field InstallationNPT Certificate Holder - Parts, Piping Subassemblies, AppurtenancesNV Certificate Holder - Pressure Relief Devices, Safety ValvesNS Certificate Holder - Supports (Beginning with 1999 Addenda)
Scopes Can Describe Activities Performed At Other LocationsCorporate Certificates Can Be Extended To Other SitesScopes Can Permit Manufacture Or Supply Of MaterialAll Require Agreement With AIAUtilities Can Get N-Type Certificates For a Nuclear Plant Site
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PART IVASME NUCLEAR ACCREDITATION (cont’d)
Terms of CertificatesAll Certificates are Issued for 3 years
Issuance and Renewal of CertificatesOwner’s Certificates
A Construction Permit or Docket Date Issued by USNRC is PrerequisiteRenewal is by MailApplication must be Made 90 days in Advance of Expiration
Other CertificatesApplication for Initial Certificate When Ready for SurveyRenewal Application Required at least 6 Months Before ExpirationDeposit Must be Submitted With Application
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PART IVASME NUCLEAR ACCREDITATION (cont’d)
Accreditation ProcessSame For Initial Issuance and For Renewal
Initial Application Made After ANIS or a Consultant (for QSC) isSatisfied with Readiness
Process Differs for Various Certificates
Owners CertificateInitial 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
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PART IVASME NUCLEAR ACCREDITATION (cont’d)
Accreditation Process (cont’d)Quality System Certificates
Application Results In a Scheduled Survey
Survey TeamTeam 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
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PART IVASME NUCLEAR ACCREDITATION (cont’d)
Accreditation Process (cont’d)Certificates Of Authorization
Application Results In Scheduled Survey
Survey TeamTeam Leader
Team Member
National Board Representative
ANIS And ANI
Jurisdictional Authority and Regulatory Authority InvitedApproval By SC-NA And Payment of Invoice is Required
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PART IVASME NUCLEAR ACCREDITATION (cont’d)
Accreditation Process (cont’d)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
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PART IVASME NUCLEAR ACCREDITATION (cont’d)
Accreditation Process (cont’d)Scope of Survey (cont’d)
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
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PART IVASME NUCLEAR ACCREDITATION (cont’d)
Accreditation Process (cont’d)Contractual Requirements With AIA
All Certificates Other Than QSC Require Agreement With AIA
AIA Provides Third Party Inspection Services With One or More ANI’s, Supervised by an ANIS
Survey ParticipationANI and ANIS Participate in SurveyANIS Participates in Review/Acceptance of Final Version of QA ManualObservers 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 MembersObservers Have No Vote on The Team
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PART IVASME NUCLEAR ACCREDITATION (cont’d)
QSC Certificates Manual RevisionsManual 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 TheAudits And Surveys
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PART IIASME NUCLEAR ACCREDITATION (cont’d)
New Developments In ASME Accreditation
Accreditation of AIA’s
The Code Moved To Add Part 4 To N626, And It Was Approved In The1992 Edition. Applied to Nuclear AIAs
Nuclear AIA’s Were First Accredited In 1993
QAI-1-1995 Added Part 5, Which Requires Accreditation Of Non Nuclear AIA’s
SC-NA First Handled Part 4 Nuclear AIA Accreditation
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PART IIASME NUCLEAR ACCREDITATION (cont’d)
New Developments In ASME AccreditationBoard 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 BCAN626 Committee Now QAI, Committee On Qualification For Authorized InspectionAIA Accreditation Now Under QAI Committee
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PART IIASME NUCLEAR ACCREDITATION (cont’d)
New Developments In ASME Accreditation (cont’d)The NS Certificate - See Figure 27-1 - Audience Handout
Agreement With AIALimited To Piping And Standard SupportsStamping Of Welded Supports Was Introduced In The Winter 1975 AddendaThe NS Certificate Introduced 1998 Edition, 1999 AddendaEliminates Standard Supports Supplied As Material Under NF-1214Permits Design ResponsibilityPermits Welded FabricationStamping Of Welded Supports Is Not RequiredNew Certificate Of Conformance, Form NS-1
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CONCLUSIONPresentation 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