ML17265A740
| ML17265A740 | |
| Person / Time | |
|---|---|
| Site: | Ginna  |
| Issue date: | 08/26/1999 |
| From: | Mecredy R ROCHESTER GAS & ELECTRIC CORP. |
| To: | Vissing G NRC (Affiliation Not Assigned), NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| NUDOCS 9909010024 | |
| Download: ML17265A740 (65) | |
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CATEGORY 1
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I'EGULA%kY INFORMATION DISTRIQUTI SYSTEM (RIDS)
ACCESSION NBR:9909010024 DOC".DATE: 99/08/26 NOTARIZED: NO DOCKET FACIL:50-244.Robert Emmet Ginna Nuclear Plant, Unit 1, Rochester G
05000244 AUTH.NAME AUTHOR AFFILIATION MECREDY,R.C.
Rochester Gas
& Electric Corp,'ECIP.NAME RECXPIENT AFFILIATION VISSING,G.S.
SUBJECT:
Requests approval for use of relief request number 35 re use of ASME Section XI Code,1995 Edition,1996 Addenda. Code will be used to develop plant 'fourth 10-year interval ISI program on class 1,2
& 3 components.
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4ND ROCHESTERGASANDEIECI1CCORPORATION 89FASTAYENUEi ROCHESTERr N Y Id6d90I101 ARFA CODE716 546-27D0 ROBERT C. MECREDY Vice President Nudea r Operations August 26, 1999 U.S. Nuclear Regulatory Commission Document Control Desk Attn:
Guy S. Vissing Project Directorate I Washington, D.C.
20555
Subject:
Inservice Inspection Program ASME Section XI Required Examinations Fourth 10- Year Interval Request for relief Regarding Request No.
35 R.ED Ginna Nuclear Power Plant Docket No. 50-244
Dear Mr. Vissing:
The purpose of this letter is to seek approval for the use of Relief Request number 35 concerning the use of ASME Section XI Code, 1995
- Edition, 1996 Addenda.
This code will be used to develop our Fourth 10-Year Interval ISX Program on Class 1,
2, and 3 components, with the exception of Containment requirements of XWE and XWL.
This relief is requested pursuant to the provisions of 10 CFR 50.55a (a)
(3) (i), the use of a later ASME Section XI Code.
Justification is included in the enclosed relief request.
Also included as Attachment (I) is our evaluation,
- analysis, and classification of differences between the 1989 Code and the 1995 Code with 1996 Addenda.
We have concluded from this evaluation that our proposed use of the 1995/1996 Code provides an acceptable level of quality and safety.
Since this relief request is being used as the basis for the development of our Fourth Interval ISI program, approval is needed by December 31, 1999.
02 6
PDR I
Ver uly y urs, Robert C. Mecredy JSM/kgb:504 Enclosure Attachment
r f
/
I.,
I
XC:
Mr. Guy S. Vissing (Mail Stop 8C2)
Project Directorate I Division of Licensing'roject Management Office of Nuclear Reactor Regulation U. S. Nuclear Regulatory Commission Washington, D.C.
20555 Regional Administrator, Region I U.S. Nuclear Regulatory Commission 475 Allendale Road King of Prussia, PA 19406 U.S.
NRC Ginna Senior Resident Inspector
XC: Mr. Guy S. Vissing (Mail Stop 8C2)
Project Directorate I
Division of Licensing Project Management Office of Nuclear Reactor Regulation U.S. Nuclear Regulatory Commission Washington, D.C. 20555 Regional Administrator, Region I
U.S. Nuclear Regulatory Commission 475 Allendale Road King of Prussia, PA 19406 U.S. NRC Ginna Senior Resident Inspector
E<nclosure 1 Rochester Gas and Electric Corporation Ginna Station Docket No. 50/244 Fourth 10-Year Interval Request for ReliefNo. 35 ASME Code Section XIAlternative for the Fourth Interval ISI Program System/Component(s) for which Relief is Requested:
This Relief Request is requested for Inservice Inspection ofall ASME Class 1, Class 2, and Class 3 components in accordance with the rules provided in ASME Section XI Code, Division 1.
II.
Code Requirement:
10 CFR 50.55a specifies that the ASME Section XI Code, 1989 Edition, should be utilize for the preparation and use oflicensees Inservice Inspection Program as well as their Repair and Replacement Program.
Later editions ofASME Section XI Codes may be utilized only ifapproved by the NRC.
III.
Code Requirement from Which Relief is Requested:
R.E. Ginna Nuclear Power Plant is requesting relieffrom utilizing the ASME Section XI Code, 1989 Edition, and is requesting permission to use the ASME Section XI Code, 1995 Edition with the 1996 Addenda for Class 1, 2, and 3 components for our Fourth Interval ISI Program in its place.
This Relief Request does not address Containment (IWE/IWLand applicable IWA)requirements.
The Containment requirements shall be performed to ASME Section XI Code, 1992 Edition with the 1992 Addenda. This year and edition of ASME Section XI Code is the basis for the EPRI/ Industry Guideline which will be used to develop and implement our Containment Inspection Program.
Request for ReliefNo. 35 Page 1 of 3
, IV.
Basis for Relief:
Relief is requested pursuant to the provisions of 10 CFR 50.55a(a)(3)(i), request for approval to use a later ASME Section XI Code. The proposed alternative will provide an acceptable level ofquality and safety.
On December 3, 1997, the NRC issued a proposed change in the Federal Register to amend 10 CFR 50.55a for Inservice Inspection. The proposed rulemaking endorsed the use ofASME Section XI Code, 1995 Edition with the 1996 Addenda for the Inservice Inspection as well as Repair or Replacement ofClass 1, 2, and 3 components.
This later code provides clarification to those requirements specified within the currently approved Code (1989 Section XI). By utilizingthe later Section XI Code for Inservice Inspection as well as Repair and Replacement ofClass 1, 2, and 3 components, the number ofneeded reliefrequests that the NRC would be required to process would be minimized.
It is requested that ASME Section XI Code, 1995 Edition with the 1996 Addenda be utilized to develop R.E. Ginna Nuclear Power Plant Fourth Interval Program.
V.
Alternate Examinations:
R.E. Ginna Nuclear Power Plant requests that our Fourth Interval Inservice Inspection (ISI) Program as well as our Repair and Replacement Program shall conform to ASME Section XI Code, 1995 Edition with the 1996 Addenda for Class 1, 2, and 3 components including supports.
Request for ReliefNo. 35 Page 2 of3
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~h VI.
Justification for the Granting ofRelief:
On December 3, 1997, the NRC issued a proposed change in the Federal Register to amend 10 CFR 50.55a for Inservice Inspection. The proposed Rulemaking endorsed the use ofASME Section XI Code, 1995 Edition with the 1996 Addenda for the Inservice Inspection as well as for Repair or Replacement of Class 1, 2, and 3 components.
The use ofthe Code (1995 with the 1996 Addenda) provides clarification to those requirements specified within the current approved Code (1989 Section XI Code).
NRC approval to utilize the later Section XI Code for Inservice Inspection, as well as Repair and Replacement ofClass 1, 2, and 3 components, would minimize the number ofneeded reliefrequests that the NRC would be required to process.
VII.
Implementation Schedule:
Examinations willbe performed during the Fourth 10-year Interval, starting January 1, 2000.
Request for ReliefNo. 35 Page 3 of3
RELIEF REQUEST ¹ 35 ATTACHMENT(1)
ROCHESTER GAS 4 ELECTRIC CORPORATION R. K. GINNANUCLEARPOWER PLANT ANALYSISOF ASMKCODE, SECTION XI, 19S9 TO 1996 ADDENDA May 10, 1999 9909010024
RELIEF REQUEST ¹ 35 ATTACHMENT(1)
For purposes ofInservice Inspection, Rochester Gas and Electric Corporation. (RG&E) proposes to adopt the 1995 Edition with the 1996 Addenda ofAmerican Society ofMechanical Engineers (ASME) Section XICode, except for Subsections IWE and IWL. For IWE and IWL,RG&Ewill use the 1992Edition with the 1992 Addenda ofASME Section XI. ASME Section IIICode, 1989 Edition shall be used for Repairs and Replacements, as applicable.
Rochester Gas &Electric Corporation has carefully reviewed all ofthe changes to the ASME Section XICode from the 1989 Edition through the 1996 Addenda to determine the impact ofeach revision.
To properly understand these changes, it was necessary to review the Minutes ofthe ASME Boiler and Pressure Vessel Committee and review each modified paragraph in the context ofthe change.
When ASME modifies requirements, the specific modification often includes several related paragraphs.
Also, it sometimes happens that two completely independent changes willmodify the same paragraph.
Therefore, it is not always possible to describe any change as merely a modification to a paragraph.
Because ofthis, the evaluation ofSection XIchanges (Attachment 1, Table 1) is grouped by each action that was passed by the ASME Committee.
The ASME descriptions ofeach action in the Minutes were helpful in determining which actions were editorial and which were clarification ofthe then current rules.
The attached evaluation lists the followingfive classifications ofchanges:
Errata:
Basically this is correction ofan ASME publication error.
These changes do not affect requirements, because they are retroactive to the time the error was introduced.
Editorial: These changes have no technical impact and are so simple that the ASME Main Committee and Subcommittee agree that they do not even warrant discussion at the Committee meetings.
No Significant Change:
These revisions consist ofclarifications or editorial changes that are discussed and voted on at the Main Committee meeting.
Less Restrictive:
These changes reduce the technical requirements of the Code.
Documentation or procedural changes are not listed, as they have no technical impact.
Justification is given for each ofthese changes.
More Restrictive:
These changes increase technical requirements and therefore need no justification for acceptance.
RELIEF REQUEST 0 35 ATTACHMENT(1)
Because these categorizations may seem to be subjective, it was decided to use the categories as assigned by the ASME Code Committee.
Therefore,~ change made to Section XIfrom 1989 to 1996 was reviewed and analyzed using the minutes from each ofthe ASME Main Committee meetings.
(These minutes are available to the public.)
The evaluation describes why the reductions in requirements do not decrease safety.
This evaluation is made by reviewing the change in requirements, using the Code Committee minutes, and considering all ofthe related Code requirements that must also be met.
Because Subsections IWE and IWLstand on their own merit and willnot be updated to the 1996 Addenda, no evaluations have been made on the impact ofchanges.
We have determined that other subsections are not afFected by the decision not to update these two subsections.
The evaluation shown in Table I was made to assess whether or not any of the changes made to Section XI, during the period from 1989 to 1996, reduced requirements in a way that would have a negative impact on safety.
On December 3,
1998, the Nuclear Regulatory Commission (NRC) issued a proposed rule incorporating the 1996 Addenda to Section XIinto 10CFR50.55a.
Five limitations to the use ofthe 1996 Addenda were proposed.
The following addresses the acceptability ofthese five provisions for RG&E's next ISI interval.
1.
Engineering Judgment The 1992 Addenda revision to the Foreword did not reduce or change any existing Code requirements.
Rather, the change to the Foreword documented ASME's long-standing policy.
These provisions were previously endorsed by the NRC with their acceptance ofthe Introduction to Section XIfrom 1970 to 1974.
2.
Quality Assurance The 1990 Addenda update to NQA-1-1989 made no substantial change in QA requirements.
Rochester Gas &Electric Corporation willapply its Appendix B QA Program to Section XI activities as required by the NRC.
3.
Class 1 Piping The 1994 Addenda revision incorporating Cases N-198-1, N-322, and N-334 merely exempted from examination inaccessible welds that cannot be examined.
Because these welds are inaccessible, the use ofthe revision reduces the number ofreliefrequests being sent to the NRC.
It has no impact on the number ofexaminations being performed.
RELIEF REQUEST 8 35 ATTACHMENT(1) 4.
Class 2 Piping This revision does not incorporate the provisions to which the proposed rulemaking purports to take exception.
The provisions about which the proposed rulemaking expresses concern were added to IWC-1220, Table IWC-2500-1, Category C-F, and Figure IWC-2500-7, in the Winter 1983 Addenda (W83), which was adopted by the NRC on May 5, 1988, and has been used at almost every nuclear power plant in the U.S., without exception or limitation.
5.
Reconciliation ofQuality Requirements The NRC's concerns about the 1995 Addenda revision to IWA-4000 are based on the assumption that the revision permits an exception to 10 CFR Part 50, Appendix B, QA requirements.
WhileRGB'elieves this conclusion to be inaccurate, RGB willimplement all applicable requirements of Appendix B and will not use Section XI to take exception to Appendix B requirements.
The evaluation summarized in Table 1 shows that even though some changes to Section XIfrom 1989 to 1996 are classified as "less restrictive," the reductions in requirements have no impact on safety.
This is the conclusion of the ASME Boiler and Pressure Vessel Committee, and our conclusion based on our extensive evaluation ofevery change made to Section XIfrom 1989 to the 1996 Edition.
RELIEF REQUEST ¹ 35, ATTACIIMENT1, TABLE1 ROCHESTER GAS &,ELECI'RIC CORPORATION, R. E. GINNANUCLEARPOWER PLANT EVALUATIONOF REVISIONS TO ASME SECI'IONXICODE - 1989 to 1996 Item ¹ Paragraphs AQected Description 1996 ADDENDA Classification Justification for Reduction Table IWA-1600-1,
- IWA4610, IWA4660 (2)
IWA-2110 Underwater Welding - This revision adds requirements for dry or wet underwater welding forrepair/replacement activities on ofP-No. 8 and P-No. 4Xmaterials.
This change incorporates the provisions ofCase N-516.
Terminology - This revision modifies the paragraphs to use current terminology regarding repair/replacement activities and programs.
No significant change.
No significant change.
(3)
IWA-2315, Appendix IV Performance Demonstration Requirements for Eddy Current Examination -, This revision adds new requirements for performance demonstration ofeddy current examination systems and personnel and moves the existing requirements for qualification ofpersonnel for analysis ofsteam generator eddy current examination date from Appendix IVto IWA-2315. The revision also incorporates the provisions ofCase N-307-1 and Case N-553.
More restrictive.
(4)
IWA-2430 Inspection Intervals - This revision incorporates the provisions ofCase N-535. This change permits performance ofconcurrent inspections to satisfy requirements and schedules oftwo successive inspection intervals.
No significant change.
Item 8 Paragraphs AQected Description Classification Justification for Reduction (5)
IWA4132 Alternative Requirements for Items Rotated From Stock-The revision incorporates the provisions ofCase N-508-1.
This revision permits rotation ofpreviously installed snubbers and reliefvalves from stock and installed on components without the need for a Repair/Replacement
- Plan, an Authorized Inspection, or a NIS-2 Data Report, provided the snubber or reliefvalve is removed from the component only for testing.
Less restrictive.
There is no reduction in safety since the removed snubber or reliefvalve undergoes testing to confirm its abilityto meet design and to detect any degradation.
Expanded examinations are required should any failure be detected, in which case; all the provisions forRepair /
Replacement would be invoked. This paragraph requires the Chvner to maintain traceability and to ensure the rotated item is used in the same design application.
(6)
IWA-4160, IWA-4180, IWA-4311, IWA-4312 IWA-4221, IWA-4226 Documentation ofRepairs and Replacements - This revision adds requirements for documentation ofmodifications to ensure that the configuration ofthe equipment is accurately reflected in the design.
The revision also adds a requirement that the revised record be certified in accordance with the Construction Code requirements for certification ofthe original records.
Reconciliation ofDesign Requirements - This revision identifies how the Owner is to reconcile the technical aspects ofrepair and replacement work performed in accordance with a later Code Edition or Addenda than used for construction.
This change incorporates the provisions ofCase N-554.
More restrictive.
More restrictive.
0
Item 8 Paragraphs Affected
IWA-4634 Description Metal Removal - This editorial revision clarifies that the Section XIdefect removal provisions are not applicable to defect removal and welding performed in accordance with the applicable Construction Code.
Procedure Qualification Test Assembly for Temper Bead Welding - This revision clarifies the dimensional requirements forthe procedure qualification test assembly for qualification oftemper bead welding ofsimilar materials.
Examination - This change relaxes the examination requirements for alternative welding methods for dissimilar metals.
Instead ofrequiring radiography, and ifpractical, ultrasonic examination, any volumetric examination method may now be used.
Classification Justification for Reduction No significant change.
No significant change.
No significant change.
(12)
(13)
IWB-3641, C-3300 IWB-3740, Appendix L IWC-3200, IWF-3200 Acceptance Criteria forAustenitic Steel Piping - This revision removes the penalties forfluxwelds. Service experience and additional &acture toughness data have justified increasing the a/t max limitof0.60 for fluxwelds to 0.75 for austenitic materials.
Analytical Evaluation ofOperating Plant Events - Operating Plant Fatigue Assessment - This revision adds guidance for evaluation ofplant operating events for acceptability of components for which concern fatigue usage limits may have been exceeded or for which fatigue may bc a concern.
Supplemental Examinations - This revision makes IWC-3200 and IWF-3200 consistent with IWB-3200 and IWE-3200, regarding supplemental examination.
The change is editorial in nature, but makes supplemental examination optional.
Less restrictive.
No significant change.
No significant change.
This revision is based on ncwv test data which shows that the penalty for fluxwelds was notjustified. Therefore the change has no impact on safety.
Item 8 (14)
(15)
(16)
(17)
(18)
Paragraphs Affected 1-2110, Table I-2000-1 VIII-3120,Appendix VIIISupplements 2, 10,11,& 12
- A4300, A-5100, A-5200, A-5300 G-2120, G-2214, G-2215, G-2222 J-3000 Description Examination Requirements - This revision clarifies the examination requirements forreactor-vessel-to flange welds, closure-head-to-flange welds, and reactor vessel CRD housing welds.
Sizing - This revision changes the length sizing acceptance criteria, to 0.75 inch RMS (root mean square) &omthe plus or minus 1 inch criteria previously specified. The RMS criteria provides a better description ofthe sizing capability and reduces failures due to occasional inaccurate sizing. This change incorporates the provisions ofCase N-538.
Fatigue Crack Growth - This change provides consistency with the previous approach to fatigue crack growth, in which both the length and the depth are calculated, allowing for fiaw shape change during growth.
Stress Intensification Factors - This revision provides an improved method for calculating the stress intensity factor K.
Appendix G is used for development ofpressure-temperature limitcurves for operating plants. The existing calculation methodology was developed in the early 1970's.
Maintenance Requiring Subsequent Tests or Examination-This revision identifies that safety and reliefvalve set point adjustment is not considered a Section XIrepair/replacement activity.
Classification Justification for Reduction No significant change.
No significant change.
No significant change.
No significant change.
No significant change.
Item 8 Paragraphs Affected Description Classification Justification for Reduction (19)
(20)
IWA-4150, IWB-2411, IWB-2411, IWB-2412, IWB-2412, IWB-2430, IWB-3122, IWB-3122, IWB-3142, IWB-3420 IWA-2220,
- IWAA110, IWA4120,
- IWA4131, IWAPI80, IWA-4221,
- IWA4530, IWA-4621,
- IWA4641, K-5220, K-5300 EDITORIAL ERRATA
Item¹ Paragraphs Affected Description 1995 ADDENDA Classification Justification for Reduction IWA-1000, IWA-2110, IWA-2430, IWA-2500, IWA-4000, IWA-5120, IWA-5214, IWA-5250, IWA-6210, IWA-6230, IWA-9000, IWB-I100, IWB-2420, IWB-3100, IWB-3200, IWC-1100, IWC-2420, IWC-3100, IWC-3200, IWD-I100, IWF-2220, IWF-3112, IWF-3122, IWF-5100, IWF-5400, Appendix II, D-1100, Appendix J Elimination ofRepair, Replacement, and Modification Classifications - This rewrite clarifies what activities are required for any kind ofrepair, replacement, or modification activity. Combining IWA-4000 and IWA-7000, in the 1991 Addenda, thus combining some ofthe diQering requirements forrepair and replacement, reduced the need for the two different classifications, repair and replacement, as well as the third, modification.
No significant change.
Item 0 Paragraphs Affected Description Classification Justification for Reduction (2)
IWA4110 Through-Wall Leakage - This revision provides that when discrepancies (such as through-wall leakage at other than at mechanical connections) are to be repaired, any repair/replacement activities are to be performed in accordance with IWA-4000.
No significant change.
(3)
IWA-2220, IWA-2223 Eddy Current Examination - This revision incorporates the No significant provisions ofCase N-485-1. The change permits use ofeddy change.
current as a surface examination technique.
(4)
IWA-2221, IWA-2222 Magnetic Particle Examination ofCoated Materials - This change allows use ofthe yoke method for magnetic particle examination on coated ferriticmaterials, without removing the coating. The revision incorporates the provisions ofCase N-458 by reference to Section V. The Case provisions were added to Section V,Article 7, Appendix I, in the 1992 Addenda.
No significant change.
(5)
(6)
IWA-2310, IWA-2323 IWA-4120, IWA-4132, IWA-4530 Qualification ofNondestructive Examination Personnel-This revision clarifies that NDE personnel qualified to IWA-2300 ofany Edition and Addenda ofSection XIare qualified to all earlier Editions and Addenda.
ApplicabilityofRepair/Replacement Requirements - This revision adds repair/replacement activity exemptions for the identified support items, as well as making corrections and clarifications to the current exemption provisions.
Clarification is added to require preservice inspections and tests ofsnubbers followinga repair/replacement activity.
No significant change.
No significant change.
Item 8 Paragraphs Affected Description Classification Justification for Reduction (9)
(10)
- IWA4312, IWA-9000 Replacement ofSmall Items - Prior to this revision, Section XIprovided an exemption, or alternative, less restrictive requirements forNPS 1 (makeup capacity size for Class I) and smaller replacement items and installation thereof.
Repairs were not similarlyexempted.
This revision removes the inconsistency by applying the alternative requirements for replacement to all repair/replacement activities. The revision incorporates the provisions ofCase N-544.
Evaluations ofComponents - This revision clarifies that the Owner is required to document an evaluation or reanalysis when the design or configuration ofan item or system is changed.
The evaluations or analyses are required to be certified in accordance withrequirements ofthe Construction Code and Owner's Requirements.
Code Reconciliation - In the past, some reconciliation efforts have concentrated on administrative and trivial documentation issues that have no effect on adequacy of affected equipment.
This revision adds specific requirements forreconciliation oflater Editions and Addenda ofthe Construction Code, or revised Owner's Requirements, for procurement ofcomponents, parts, and material.
Rerating Pressure Retaining Equipment - The Code provides specific requirements forrepair/replacement activities of items, but has not provided any requirements forrerating ASME Code equipment and systems.
This revision specifies requirements for rerating ofexisting Code items in operating plants.
More restrictive.
More restrictive.
No significant change.
More restrictive.
Item 8 Paragraphs Affected (11)
IWAQ451 (12)
IWA-5213(a)
Description Helical Coil Threaded Inserts - This revision provides tv requirements forhelical coil threaded inserts. Use ofthese inserts has previously been identified as neither required nor prohibited, withno requirements nor guidance provided for controlling design or material properties.
The revision incorporates the provisions ofCase N-496.
Test Condition Holding Time - This revision eliminates the holding time requirements after attaining test pressure and temperature for system leakage tests. Hold times were inadvertently added during the previous mvrite ofIWX-5000 in the 1991 Addenda.
Classification Justification for Reduction No significant change.
No significant change.
(13)
IWA-5244 Buried Components - This revision simplifies and clarifies the requirements forpressure testing buried components with and without isolable valves. The provisions now address redundant systems with isolable buried components.
No significant change.
(14)
IWA-9000, Table IWB-2500-1 IWB-2500-1 Examination Category B-F (Pressure Retaining Dissimilar Metal Welds in Vessel Nozzles) k B-J (Pressure Retaining Welds in Piping) - This revision adds a definition for dissimilar metal weld, and revises the tables to be consistent with the fact that the glossary now contains the definition.
No significant change.
(15)
IWA-9000 Owner - This revision revises the definition ofOwner to be consistent withthe definition in Section IH and other ASME Nuclear Codes and Standards.
No significant change.
Paragraphs Affected Description Classification Justification for Reduction IWB-1100, IWB-1210, IWB-2500, Table IWB-3410-1, IWB-3516, IWB-3520, IWB-3522, IWC-1100, IWC-1210, IWC-2500, Table IWC-2500-1, Fig. IWC-2500-5, Table IWC-3410-1, IWC-3512, IWD-1100, IWD-1210, IWD-2500, Table IWD-2500-1, IWF-1300, Fig. IWF-1300-1 Integrally Welded Attachments - This revision clarifies use of No significant the term "integrallywelded attachments" to provide change.
consistency with the provision in Section IH, Subsection NF.
IWB-1220 Emergency Core Cooling Systems and Makeup Capacity-This revision clarifies that emergency core cooling systems are excluded from calculation ofmakeup capacity, because they do not operate under normal plant operating conditions.
No significant change.
10
Item 4 Paragraphs Affected Description Classification Justification for Reduction (18)
IWB-2411, IWB-2412, IWB-2420, IWB-2430, IWB-2500, IWC-2411, IWC-2412, IWC-2420, IWC-2430, Table IWC-2500-1, IWD-2411, IWD-2412, IWD-2420, IWD-2430, Table IWD-2500-1 Inspection Schedule - This revision incorporates the provisions ofCase N-509. The change modifies the examinations to be performed on welded attachments for Examination Categories B-K, C-C, and D-A. The extent of examinations forwelded attachments to piping, pumps, and vessels is reduced from 100% ofall welded attachments to 10%. For Category D-A,the 10% must include those welded attachments most susceptible to corrosion.
Less restrictive.
Industry experience demonstrates that Welded Attachments, even iffailure occurs, do not violate the pressure retaining function of the system that itis attached to. By concentrating on Welded Attachments most susceptible to corrosion and sampling 10% withineach system, adequate assurance ofdetection ofdegradation is maintained. Additionally,the thickness exemption is eliminated so more welded attachments are in the pool for selection. Further examination for cause is required whenever a failure of the attachment is discovered.
(19)
(20)
Table IWD-2500-1 Table IWB-2500-1 Examination method - This revision incorporates the provisions ofCase N-509. For Examination Category D-A, the required examination ofa welded attachment is now a VT-1. Previously, a VT-3 was required.
Inspection ofNozzle to Vessel Welds - This revision incorporates the provisions ofCase N-521. This change permits deferral ofPWR reactor vessel nozzle welds and inside radius sections to the end ofthe interval. Itapplies to all but the firstinspection interval.
More restrictive.
No significant change.
11
Item 4 Paragraphs Affected Description Classification Justification for Reduction (21)
Table IWB-2500-1 Examination ofControl Rod Housing Bolting - This revision incorporates the provisions ofCase N-547. The revision eliminates the requirement forVT-1 visual examination of CRD housing bolting.
Less restrictive.
A Code required VT-2 examination willbe performed in accordance with IWB-5220 in lieu ofthe VT-I visual examination.
The elimination ofthe visual examination ofthe CRD housing bolting is not significant because any indication ofboric acid residue in the area requires the bolting to be evaluated and corrective action taken.
(22)
(23)
Table IWB-2500-1, Table IWC-2500-1 Fig. IWB-2500-15, Fig. IWC-2500-5, Fig. IWD-2550-1 Examination ofLongitudinal Welds - This revision incorporates the provisions ofCase N-524. The revision reduces the extent ofinservice examination oflongitudinal piping welds in Class 1 and 2 piping from the lesser ofone pipe diameter or 12 inches to the portion ofthe longitudinal weld withinthe examination boundary ofthe intersecting circumferential weld required to be examined.
Examinations Around Supports - This revision adds a footnote to permit examination ofwelded attachments without removing any support member covering part ofthe surface area to be examined.
Less restrictive.
Less restrictive.
Experience has shown that reduction in length of longitudinal weld to be examined does not affect safety because the area most vulnerable to problems is at the intersection ofthe longitudinal and girth welds, which is the area to be investigated.
Experience has shown that welded attachments can be properly examined without removing support members covering part ofthe surface area to be examined, because any cracks would be initiated at the attachment weld, not under the support member.
12
Item 8 Paragraphs Affected Description Classification Justification for Reduction (24)
Table IWB-3410-1, IWB-3522 Category B-E - This revision corrects the provisions to reflect deletion ofExamination Category B-E in the 1993 Addenda.
No significant change.
(25)
Table IWC-2500-1, Fig. IWC-2500-1, Fig. IWC-2500-2 Examination Requirements - This revision incorporates the provision ofCase NQ35-I. This revision permits surface examination in lieu ofvolumetric examination for thicknesses I/5 in. or less.
No significant change.
(26)
Table IWC-2500-1 Dissimilar Metal Attachments - This revision clarifies the provisions regarding examination ofdissimilar metal attachments.
No significant change.
(27)
IWF-1230, IWF-2510 Support Exemptions - This revision clarifies that supports on piping that is exempted &omvolumetric, surface, or VT-1 or VT-3 visual examination are also exempted &om examination.
No significant change.
(28)
Appendix III-2300 (29)
Appendix III-3410 (30)
Appendix VIIA310 Written Procedure Requirements - This change clarifies that itis not necessary for the ANIIto approve NDE procedures.
Alternative Requirements for Piping Calibration Block Thickness - This revision incorporates the provisions ofCase N461. The change permits a piping calibration block thickness tolerance ofplus or minus 25%.
Examination Questions and Test Specimens - This revision clarifies that a random selection process controlled by the employer's written practice may be used to ensure that no individual takes the same examination more than once. The revision also clarifies that "grading units" may be considered a test specimen for the practical examination.
No significant change.
No significant change.
No significant change.
13
Item 8 Paragraphs AQected (31)
Table VIII-3110-1 Description Component Qualification Supplements - This revision includes a reference to coordinated implementation ofpiping weld qualifications using Supplement 12 and vessel qualifications using Supplement 13.
Classification Justification for Reduction No significant change.
(32)
(33)
(34)
(35)
Appendix VIII; Supplements 2 k 3 Appendix VIII; Supplements 2 k 12 Appendix VIII; Supplement 4 k 6 Appendix VIII, Supplement 5 Qualification Requirements for Wrought Austenitic Piping Welds - This revision simplifies the specimen requirements forwrought austenitic piping welds, by adding a tolerance on wall thickness.
Qualification Requirements forWrought Austenitic Piping Welds - This revision changes the length size sample set selection criteria to reflect the requirements ofthe detection test set requirements in Supplement 2, and to allow combination oftest sets in Supplement 12. This change reduces the overall number ofdemonstrations that candidates must perform.
Conduct ofPerformance Demonstration - This revision incorporates the provisions ofCase N-541. The revision deletes the requirement (carried over from piping qualification) to obscure the inside surface and specimen identification forthe "blindtest," because some vessel examinations must be performed from the inside surface and some sample identification must be known by the individual to verifyinformation regarding thickness, configuration, and geometry.
Nozzle Inside Radius Section - This revision incorporates the provisions ofCase N-542. This revision eliminates length sizing demonstration requirements ofAppendix VIII, Supplement 5 for the inside corner region. The acceptance criteria in Table IWB-3512-1 for the inside corner region are based on depth, not length; therefore there is no need to perform length sizing demonstration.
No significant change.
No significant change.
No significant change.
No significant change.
14
Item 0 Paragraphs Affected Description Classification Justification for Reduction (36)
K-1200, K-1300, K-2200, K-2300, K-2400, KC100, K-4210, K-4220, Table K-4320-1, Fig. K-4320-1, K-4321, K-4332, K-5000, K-5100, K-5200, K-5300, K-5400 Assessments ofReactor Vessels - This revision modifies the method for evaluating the reactor coolant pressure boundary for continued service when the predicted upper shelf impact energy level, as defined inASTME 185, decreases below a specified value. The change also adds requirements for evaluating Level C and Level D service loadings. The revision incorporates the provisions ofCase N-512.
No significant change.
(37)
IWA-2110, IWB-2200, IWB-2412, IWC-2412, IWD-2412, IV-2000, VII-4223 EDITORIAL (38)
IWC-1223 ERRATA 1994 ADDENDA (2)
IWA-2420, IWA-6220 IWA4150 Substitute Examinations and Tests - This change deletes the reference to substitute examinations and tests.
VerificationofAcceptability - This paragraph has been changed to exempt modifications and like-for-like replacements, which are not associated with service induced failures, from the verification requirements ofIWA-4150.
The change incorporates the provisions ofCase N-556.
No significant change.
No significant change.
15
I
Paragraphs Affected Description Classification Justification for Reduction IWA-4170 IWA-4810, IWA4820 IWA-7000, IWB-4000, IWB-7000,
- IWC4000, IWC-7000,
- IWD4000, IWD-7000, IWF-4000, IWF-7000 Alternative Rules for Repairs, Replacements and Modifications - This revision requires that when specific provisions oflater Editions and Addenda ofSection XIare used forperforming repair, replacement, and modification activities, all related requirements are to be met. The revision incorporates the provisions ofCase N-389-1.
Examination and Preservice Inspection - This revision clarifies the examination and preservice inspection requirements for both repairs and installation ofreplacements may be performed concurrently withthe preservice inspections required by IWA-4820.
Repair and Replacement - The 1991 Addenda consolidated repair and replacement rules into IWA-4000. This revision deletes the above Articles, which are no longer needed.
No significant change.
No significant change.
No significant change.
IWA-9000 DefinitionofOwner - This revision modifies the definition of No significant "Owner" to be consistent with other nuclear Codes and change.
Standards.
16
Item 8 Paragraphs AQected Description Classification Justification for Reduction (7)
(8)
IWB-1220, IWC-1223, IWD-1220 IWB-2411, IWB-2412, Table IWB-2500-1 Exemption &om Examination - This revision exempts welds or portions ofwelds, which are located inside penetrations,
&omexamination.
The change incorporates the provisions of Case N-198-1, Case N-334, and Case N-322.
Inspection Programs - This change clarifies the requirements forpartial deferral ofitems &omthe inspection program.
Less restrictive.
No significant change.
The provisions exempt welds inside penetrations &om examination.
The welds are inaccessible and could never be examined without major modification and/or redesign.
There is no impact on safety because the welds are inaccessable and could never be examined. Therefore, the change has no safety/technical impact.
(9)
IWB-2412, IWC-2412, IWD-2412 Inspection Program B - This revision provides requirements for adding items or welds to the inspection schedule.
More restrictive.
(10)
Table IWB-2500-1 (11)
Table IWB-2500-1 (12)
IWB-3710 Examination Categories - This revision changes the tables to clarifyprovisions and provide consistency.
Pump and Valve Internal Surface VT-3 Examination - This revision continues to allow partial exanunation ofpump and valve casing internals when only partial disassembly is performed, but requires fullexamination to be made at a later date when disassembly ofthe component permits a full examination.
Analytical Evaluation ofPlant Operating Events - This revision changes the scope statement to include operational integrity issues.
No significant change.
More restrictive.
More restrictive.
17
e
Item 8 Paragraphs Affected Description Classification Justification for Reduction (13)
IWF-2410 Inspection Programs - This revision adds rules to provide for adding items or welds to the inspection schedule.
More restrictive.
(14)
Appendix I, Supplement 3 Calibration Blocks for Examination ofParts with Curved Surfaces - This revision reinstates requirements previously specified in the 1986 Edition ofSection XIregarding calibration blocks for examination ofparts withcurved surfaces.
More restrictive.
(15)
VII-6000 Authorized Nuclear Inspector - This paragraph has been deleted because itis redundant withthe provisions contained in IWA-2100.
No significant change.
(16)
Appendix VIH, Supplement 8 Qualification Requirements for Bolts and Studs - This revision permits the qualification notch ofa stud or bolt to be located withinone diameter ofthe end opposite the search unit. The ultrasonic technique qualification can stillbe demonstrated with such a notch location. The change incorporates the provisions ofCase N457.
No significant change.
(17)
Appendix VIII, Supplement 13 Requirements for Coordinated Implementation ofSelected Aspects ofSupplements 4, 5, 6 and 7 - This revision adds Supplement 13, which provides specific performance demonstration requirements forultrasonic examination, personnel, equipment and procedures.
No significant change.
(18)
A-3000 (19)
C-3220 Method for K, Determination - This revision modifies A-3000 to allow the user to use a more accurate and less conservative formulation for determining stress intensity factors for any gradient stress distribution over the Qaw face.
EDITORIAL Less restrictive The less conservative approach is acceptable because ithas been verified to be more accurate based on published studies. Also, these provisions are nonmandatory.
18
Item 4 Paragraphs AQected Description Classification Justification for Reduction (20)
IWA-5250, IWF-2500, H-1300, Table H-5310-1, Table H-5310-2, H-5420, Table H-5410-1, Table H-6310-1, Table H-6310-2, K-4210 ERRATA 1993 ADDENDA (2)
IWA-1400, Footnote 1
Table IWA-1600-1, Appendix A,A4400 Terminology, Nuclear Power Plant - This revision changes the term 'power system'o 'nuclear power plant', for consistency withother changes to 'nuclear power plant'n the 1991 Addenda and the 1992 Edition.
Referenced Standards and Specifications - The reference to ASTM E 185 is clarified to be to the 1982 Edition, and the title is corrected to "Standard Practice for Conducting Surveillance Tests for Light-Water Cooled Nuclear Power Reactor Vessels."
No significant change.
No significant change.
(3)
IWA-2216 Remote Visual Examination - This change adds requirements for color resolution forremote visual examination.
When using remote visual examination, itis necessary to detect conditions such as corrosion. Withblack and white cameras, corrosion byproducts could be missed.
More restrictive.
(4)
IWA-2233, Appendix IV Eddy Current Examination - This revision referencesSection V,Article 8, Appendix IIfor eddy current examination because the Section XI,Appendix IVprovisions were added to Section Vin the 1992 Addenda.
Section XI,Appendix IV stillcontains additional personnel requirements.
No significant change.
19
Item 8 Paragraphs Affected Description Classification Justification for Reduction (5)
IWA-2430, IWB-2411, IWB-2412, IWF-2410 Interval Extensions - This revision clarifies that inspection periods may be adjusted by up to one year to coincide with plant outages.
No significant change.
(6)
IWA-4130 IWA-4130, IWA-4140, IWA-4150, IWA-4170, IWA-4310,
- IWAA422, IWA-4423, IWA-4424, IWA-4425, IWA-4512, IWA-4542, IWA-4621, IWA-4910, IWA-9000 Responsibilities, Repair Organization's Quality Assurance Program - This revision adds requirements for a Quality Assurance Program for a repair organization when the organization is other than the Owner.
DefinitionofConstruction Codes - Previously,Section XI defined Construction Code in such a way that many people interpreted Construction Code to include the Design Specifications or Owner's Specifications.
This revision clarifies that the Design Specifications and Owner's Requirements, although required by some Construction Codes, are not part ofthe Construction Code.
More restrictive.
No significant change.
(8)
IWA-4140 Repair/Replacement Program and Plan - This revision clarifies that reference points are required to be recorded for repairs only when required by IWA-2600.
No significant change.
(9)
IWA-4180 Material - This revision deletes IWA-4180 because the provisions are redundant and unnecessary.
No significant change.
20
Item 8 Paragraphs Affected Description Classification Justification for Reduction (10)
Table IWA-5210-1, IWA-5221, Table IWB-2500-1, IWB-5210, IWB-5220, IWB-5230, Table IWB-5230-1, IWB-5240, Table IWC-2500-1, IWC-5210, IWC-5210, IWC-5220, IWC-5230, IWC-5240, IWD-5240 System Leakage Test Boundary - This revision provides for a system leakage test in lieu ofa system hydrostatic test for Class 1 and 2 systems once during each inspection interval.
The change incorporates the provisions ofCase N-498.
Less restrictive.
The purpose ofthe test is to assure leak tightness, not to overstress the components, which could cause problems.
The new test willstill demonstrate leak tightness, so there is no impact on safety.
IWA-5211, IWC-5210, IWD-5210 System Pressure Tests, System Pneumatic Tests - This revision clarifies that a pneumatic test may be performed in lieu ofa system leakage test or a system hydrostatic test for Class 2 or 3 steam systems, after repair, replacement, or alteration.
No significant change.
(12)
IWA-5250 (13)
IWA-9000 Corrective Action - This revision clarifies that the requirement to remove a bolt and perform a VT-3 inspection when leakage is found at a bolted joint does not apply to gaseous systems.
Glossary - This revision deletes definitions for "fullstroke time," "functional pressure differential (valve)," and "operating convenience."
No significant change.
No significant change.
(14)
Table IWB-2500-1, Table IWC-2500-1 Weld Examinations - This revision clarifies that welds must be examined, to the extent practical, in the same sequence in successive intervals as the sequence in which they were examined in the firstinterval.
No significant change.
21
'4 l'
Item 8 Paragraphs Affected Description Classification Justification for Reduction (15)
IWB-2500, IWC-2500 Examination Categories - This revision changes the identification lettering on the outside surfaces ofthe figures to make them consistent.
No significant change.
(16)
IWB-3730, Appendix K Fracture Toughness Criteria for Protection Against Failure-This change provides acceptance criteria and evaluation procedures for assessment ofreactor vessels when the predicted upper shelf Charpy impact energy level is below 50 ft-lbs.
Less restrictive.
The Code revision allows an evaluation to demonstrate equivalence with vessels which have Charpy impact energy levels above 50 ft-lbs.
The new method is based on more advanced technology and therefore there is no reduction in safety.
(17)
IWF-2420, IWF-2430 (18)
Appendix H Successive Inspections, Additional Examinations - This revision clarifies when successive inspections and additional examinations are required for supports by providing more specific cross-references and expanding the description ofthe conditions that require these examinations.
Data Report Forms - This revision adds guidance for completing the NIS-I and NIS-2 Owner's Report Forms, similar to that provided in other sections ofthe Code.
No significant change.
No significant change.
(19)
(20)
Appendix VH, VH-3300, VH-4240 Appendix VH, VH-4220 Qualification ofNDE Personnel forUltrasonic Examinations
- This revision clarifies the intent of'outside agency'or large companies administering the examinations required by VHA342 and clarifies that no examination is required to meet the requirements for annual training.
Training Course Content and Duration - This revision provides requirements for training ofultrasonic examination personnel previously qualified under a mitten practice not meeting the additional requirements ofAppendix VH.
No significant change.
More restrictive.
22
Item 8 Paragraphs Affected Description Classification Justification for Reduction (21)
VIH-3110, VHI-3120, VHI-3130, Table VIH-3110-1, VHI-4120, Fig. VHI-S1-2A, Supplements 2, 3, 4, 6, Table VHI-S7-1, Supplements 8, 9, 10, 11, 12 Performance Demonstration for Ultrasonic Examination Systems - This revision adds three new supplements for performance demonstration requirements, including requirements for dissimilar metals (Supplement 10) and weld overlays (Supplement 11). Supplement 12 provides some reduction in performance qualification requirements when one individual is qualified formore than one method.
The flawdepth sizing acceptance criteria is changed use a root mean square basis instead oflinear regression.
Many editorial revisions are also included.
No significant change.
(22)
(23)
(24)
(25)
A4300 A-5200,A-9000 Appendix F F-2500 Fatigue Crack Growth Rate - The current provisions for fatigue crack growth procedures do not clearly specify how compressive loads are to be handled.
The revision adds a reliable method to account for compressive loads by accounting for crack closure effects.
Flaw Analysis - This revision accommodates possible flaw shape change due to fatigue crack growth and clarifies the plastic zone correction for fatigue growth analysis. The definitionof'end-of-period flawsize's clarified.
Inspection Plan Contents, Substitute Examinations or Tests-This revision deletes the provisions for addressing substitute examinations or tests in the inspection plan. The provisions were deleted because substitute examinations or tests are not permitted by Section XI.
Inspection Plan Contents, Co'ntainment Examinations - This revision adds a new Supplement 5 to specifically address containment vessels and containment liners.
More restrictive.
More restrictive.
No significant change.
No significant change.
(26)
G-2215 Low Temperature Overpressure Protection Systems - This revision adds guidance for low temperature overpressure protection systems.
The revision incorporates the provisions ofCase N-514 into Appendix G.
No significant change.
23
Item 8 Paragraphs AQected Description Classification Justification forReduction (27)
(28)
Fig. IWA4546-1, Fig. IWA4546-2, IWA-5250, IWB-3132, IWC-3122, IWF-3122,A-1100 IWA-4412, IWA-4910, Fig.
IWB-3641-1, A-4300, C-3210, C-3320, C-3420, C-3420 EDITORIAL ERRATA 1992 ADDENDA (2)
Table IWA-1600-1, IWA-2310, IWA-2320, IWA-2330, IWA-2350, IWA-2360, IWA-2370, IWA-2380, Appendix VH Table IWA-1600-1, IWF-5200, IWF-5300 Qualification and Certification ofNDE Personnel - This revision adopts a new ASNT Standard CP-189 for qualification and certification ofnondestructive examination personnel.
Referenced Standards and Specifications - This change clarifies the references the OM Part 4 (1987+ OMa-1988 Addenda) and adds reference to ASTMD974-1987.
More restrictive.
No significant change.
24
Item 8 Paragraphs Affected Description Classification Justification for Reduction (3)
Table IWA-1600-1, VIH4110, VIH-4120, Supp.
1 including Figs.
Essential Variable Tolerances - This revision incorporates the provisions ofASTME 1324-1990, formeasuring electronic characteristics ofultrasonic instruments, and updates reference to ASTME 1065, to the 1987A edition. In addition, the tolerances are modified on the basis ofrecent data. The change also permits system characterization as opposed to characterization ofindividual components.
In addition, the revision provides formore control ofsensitivity fornarrow bandwidth systems.
No significant=
change.
(4)
IWA-2216 Visual Examination Cleaning Requirements - IWA-2216 was deleted because the requirements for cleaning prior to visual examination have been added to Section V.
No significant change.
(5)
IWA-2350 Limited Certification - This revision clarifies the definition of limited certification and permits deletion oftraining topics with corresponding reductions in training hours, examination content, and required experience.
The change incoiporates the provisions ofCase N-503.
No significant change.
(6)
(7)
IWA-4110, IWA-4120 IWA-4111, IWA-4120, IWA4710 Repairs and Replacements - This revision expands and clarifies the exemptions &omthe scope ofthe repair and replacement rules.
Alternative Requirements for Small Items - This revision deletes the exemption from the provisions ofIWA-4000 for NPS 1 and smaller items, and replaces itwith an alternative requirement to provide assurance that the item willfunction as designed.
The reduced provisions are no longer applicable to Class 1 items larger than the makeup capability limitfor the plant, nor forheat exchanger tubing or sleeves or welded tube plugs forheat exchanger tubing.
No significant change.
More restrictive.
25
Item 8 Paragraphs Affected
- IWA4412, IWA-4413 Description Tube and Tubesheet Hole Plugging - This revision combines the two paragraphs, because they contain similar requirements for applicability, qualification and performance for Class I welded tube and tubesheet hole plugging.
Classification Justification for Reduction No significant change.
(9)
IWA-4512, IWA-4513, IWA-4522, IWA-4532 Gas Tungsten-Arc Welding - This change involves lowering the postweld temperature maintenance forthe gas tungsten-arc temperbead weld repair process &om a range of 450 F to 550 F to a minimum temperature of300 F.
No significant change.
(10)
IWA-5265 IWA-9000, Table IWB-2500-1 (12)
IWA-9000 (13)
IWB-1220 (14)
Table IWB-2500-1 Location ofPressure Measuring Devices - This revision clarifies that the 106 percent overpressurization limittakes priorityover achieving the minimum pressure throughout the system.
Definition-This revision moves the definitionof"belt line region", Rom Table IWB-2500-1 to IWA-9000.
Glossary - This revision adds definitions of"post tensioning," "prestressed concrete," "reinforced concrete,"
"tendon," "structural integrity test," and "unbonded tendons" and deletes "active valve," "exercising," "maintenance,"
"passive valve," "routine servicing," and "system resistance."
Scope and Responsibilities - This revision deletes the reference to 10CFR50 for definition ofthe reactor coolant pressure boundary and changes the definitionof"inpiping" to agree with Subsections IWC and IWD.
Examination Categories - The table was revised to clarify that Examination Categories B-H and B-K-Iare never required to have volumetric examinations.
No significant change.
No significant change.
No significant change.
No significant change.
No significant change.
26
Item 8 Paragraphs Affected Description Classification Justification for Reduction (15)
(17)
(18)
(19)
IWD-5222 I-2500 Appendix VI A-4200, Fig. A4200-I IWA-9000, Fig. IWB-2500-20, IV-2700, A-9000,
- H4221, Fig. J-1000-1 System Hydrostatic Test - This revision exempts safety or safety reliefvalve piping that discharges into a containment pressure suppression pool from any kind ofpressure test.
The previously required pneumatic test did not provide a meaningful test ofthis piping.
Ultrasonic Thiclmess Measurements - Section XIdoes not include provisions for measuring thichiess using ultrasonic equipment. This change provides guidance forperforming any UT thickness measurements required by Section XI.
Ultrasonic Examination ofBolts and Studs - The Appendix has been deleted because its provisions have been incorporated into Appendix VIII.
KicCurves This revision modifies the Kiccurve in Fig.
A-4200-1 to agree withthe source equations in Section III, Appendix G.
ERRATA 1992 EDITION No significant change.
More restrictive.
No significant change.
No significant change.
(I)
Table IWA-2210-1 Visual Examinations - The units forcharacter height were changed from mils to inches forconsistency withother Code dimensional units.
No significant change.
(2)
Table IWB-2500-1
't Dissimilar Metal Welds - This revision clarifies that No significant Category B-F applies to dissimilar metal welds only in vessel change.
nozzles, not in piping.
27
Item 8 Paragraphs Affected Description 1991 ADDENDA Classification Justification for Reduction (2)
(3)
(4)
IWA-2110, IWA-2200, IWA-2430 Table IWA-1600-1, IWA-2120 IWA-2321, IWA-2322, IWA-2323, IWA-2324, IWA-2325 IWA-2323, IWB-2411, IWB-2412 Examination and Inspection - This revision adds coverage for concrete containments under the general provisions for examination and inspection.
Qualification ofAuthorized Inspection Agencies - This revision updates the reference to ASMEN626 to the 1991 Addenda and makes accreditation ofthe Authorized Inspection Agency in accordance withthe new provisions of ASMEN626 mandatory.
Vision Tests - This revision changes the eye examination test requirements fornear vision &om Jaeger J-1 to Snellen 20/25 and provides qualification requirements forthe required near-distance test chart. This revision incorporates the provisions ofCase N-490-1.
Level IIIPersonnel; Inspection Program - This revision clarifies the provisions forrecertification ofLevel IIINDE personnel and corrects the term "inspection period" to "inspection interval" in IWB-2411 and IWB-2412.
More restrictive.
No significant change.
No significant change.
No significant change.
(5)
IWA-2410 Code Edition and Addenda for Inservice Inspection - This revision deletes paragraphs that conflicted withNRC requirements in IOCFR50.55a.
No significant change.
28
Item 8 Paragraphs AQected Description Classification Justification for Reduction (6)
(7)
IWA-4000, IWA-5120, IWA-5250, IWA-6340, IWA-7000, IWB-3113, IWB-3123, IWB-3133, IWB-3143, IWB-4100, IWB-4200, IWB-4300, IWB-7100, IWB-7300, IWC-3113, IWC-3124, IWC-3133, IWC-7100, IWD-7100, IWF-4100, IWF-4200, IWF-4300, IWF-4400, IWF-5400, IWF-7100 IWA-4110, Appendix J Repairs and Replacements - This revision consists ofa complete rewrite ofIWA-4000 and IWA-7000 into one Article, IWAA000. Provisions from IWB-4000 and IWF4000 regarding repairs are also moved into the new Article.
Guide to Section XIRepair and Maintenance Activities-This revision adds a new Nonmandatory Appendix J to provide guidelines for distinguishing plant maintenance work from Section XIrepair and replacement activities.
No significant change.
No significant change.
(8)
IWA-4120 Exemptions - This revision clarifies that heat exchanger tubing, and sleeves and welded plugs used forheat exchanger tubing, are not exempt from the requirements ofIWA-4000 forreplacement items.
No significant change.
29
Item 8 Paragraphs Affected Description Classification Justification for Reduction (9)
IWAP310 (10)
IWA-4500 (11)
Fig. IWA-4513.1-1 Defect Removal Procedure - Afterdefect removal, IWA-4310 allows the resulting reduced section thickness to be evaluated.
This revision clarifies that the evaluation techniques given in some ofthe Section XIAppendices may be used.
The change also removes the requirement for surface examination ofthe removal cavity when the full thickness ofthe weld is removed and the back side ofthe jointis inaccessible.
Temperbead Weld Repair - This revision incorporates the provisions ofCase N-432. The changes include addition of the GTAWtemperbead repair techniques and additional limits on the permissible depth and area oftempeibead repairs.
Temperbead Weld Repair - This revision adds a figure that should have been included when IWA-4500 was revised in the 1990 Addenda.
No signiGcant change.
No significant change.
No significant change.
30
Item¹ Paragraphs Affected Description Classification Justification for Reduction (12)
IWA-5110, IWA-5120, IWA-5210, IWA-5220, IWA-5246, IWA-5250, IWA-5260, IWA-5300, Table IWB-2500-1, IWB-5210, IWB-5222, IWB-5240, Table IWC-2500-1, IWC-5210, IWC-5220, IWC-5240, Table IWD-2500-1, IWD-5210, IWD-5220, IWD-5240 System Pressure Tests - This revision clarifies the system pressure test requirements for Class 1, 2, and 3 systems and components.
Most ofthe changes are editorial, but this revision replaces the system functional test and the system inservice test withthe system leakage test.
No significant change.
(13)
IWA-5240 (14)
IWA-9000 VT-2Visual Examination - This revision makes the terminology forVT-2 visual examination consistent.
Glossary - This revision adds de6nitions for "design life"and "design lifetime."
No significant change.
No sigmficant change.
(15)
IWB-1220, IWC-1223, IWC-1230, IWD-1210, IWD-1220, Table IWD-2500-1 Inaccessible Integral Attachments - This revision adds provisions to exempt integral attachments that are inaccessible for inspection.
No significant change.
31
Item¹ Paragraphs Affected Description Classification Justification for Reduction (16)
(17)
(19)
(20)
(21)
IWB-2411, IWB-2412, Table IWB-2500-1, IWC-2412, IWD-2412 IWB-2420, IWC-2420, IWD-2420, F-2200 IWB-2430, IWC-2430, IWD-2430 IWC-1220 IWC-5222 IWC-5222 Inspection Programs - This revision clarifies that under Inspection Program B itis permissible to defer inspections to the end ofthe interval as allowed by the footnotes in the 2500-1 Table and clarifies the associated percentage requirements.
Successive Inspections - This revision corrects the terminology in IWB-2420 and IWC-2420 to be consistent with IWB-3000 and IWC-3000. In addition, similar provisions for successive examinations are added for Class 3 components.
Additional Examinations - This revision changes and clarifies the extent ofadditional examinations to be performed upon discovery ofa flawor relevant condition that exceeds the acceptance criteria. The change also adds requirements for additional examinations when flaws or relevant conditions are found in Class 3 components.
Components Exempt From Examination - This revision clarifies the exemptions for components withinthe RHR, ECC, and CHR systems.
System Hydrostatic Test - This revision adds provisions for combining the hydrostatic test ofthe Class 2 portion ofthe BWRMain Steam System withthe hydrostatic test ofthe Class 1 portion ofthe Main Steam System, when the Class 2 portion cannot be isolated. The change incorporates the provisions ofN-479.
Exemptions to System Hydrostatic Tests - New paragraph (g) exempts open ended vent and drain lines and open ended safety and reliefvalve discharge lines &om a flowpath test.
These lines were required to be subjected to a flowpath test, in lieu ofa hydrostatic test, beyond the last shutoff valve.
No significant change.
No significant change.
No.significant change.
No significant change.
No significant change.
Less restrictive.
This change eliminates a test that really was meaningless because the piping must be examined by other means during installation.
32
Item 8 Paragraphs AIfected Description Classification Justification for Reduction (22)
IWD-1210, IWD-1220, IWD-2200, IWD-2500, Table IWD-2500-1 Examination Requirements - This revision eliminates Examination Category D-C, Systems in Support ofResidual Heat Removal &om Spent Fuel Storage Pool. The requirements ofCategory D-C have been incorporated within Categories D-Aand D-B.
No significant.
change.
(23)
IWF-2200 (24)
III-1100 Adjustment, Repair, and Replacement - This revision adds new requirements for examination ofcomponent supports followingadjustment, repair, or replacement.
This revision also permits preservice examination ofsome component supports prior to initialheating.
Ultrasonic Examination Calibration Blocks - This revision clarifies that calibration block materials need not be the same grade as the material to be examined, as required by III-3411, provided the provisions ofIWA-2240 are met.
More restrictive.
No significant change.
(25)
Appendix VIII, Supplements 4, 5 k 7 Performance Demonstration forUltrasonic Examination Systems - This revision clarifies the Appendix and permits a 10 percent tolerance on the thickness ofthe flawed specimens used for evaluation.
No significant change.
33
Item 8 Paragraphs Affected Description Classification Justification for Reduction (26)
Table IWA-1600-1 IWA-2110, IWA-2430, Fig. IWA4513.1-1, Table IWB-2500-1, IWB-3112, IWB-3132.1, Table IWC-2500-1, IWC-3112, IWC-3122.1, IWF-2410, IWF-2420 ERRATA (2)
IWA-1400, IWA-6100, IWA-6210, IWA-6220, IWA-6230, IWA-6240, IWA-6340 IWA-1400, IWA-2420, IWA-2440, IWA-6230, IWA-6240 1990 ADDENDA Records and Reports - This revision clarifies the Oxvner's responsibilities for preparation ofplans, schedules, summary reports, and Form NIS-1 and NIS-2 Oxvner's Reports. Italso adds requirements for the content ofthe abstract of examinations required for the Form NIS-1.
Inspection Reports, Schedules and Plans - This revision changes the provisions forthe preparation and submittal, to the regulatory and enforcement authorities, ofpreservice and inservice inspection reports, schedules and plans to clarify that schedules are required to be prepared but not submitted.
No significant change.
No significant change.
34
Item 8 Paragraphs Affected (3)
IWA-1400 Description Chvner's Responsibilities for Flaw Evaluation - This revision adds provisions to indicate that the Owner is responsible for flaw evaluation calculations. IWA-1400(p) provides that the Owner is responsible formaintaining permanent records of flaw evaluations when the flaw exceeds the acceptance criteria ofSection XI.
Classification Justification for Reduction No significant change.
(4)
IWA-2210 Qualifications forVisual Examination - This revision replaces the provisions in Section XIregarding qualification ofpersonnel forvisual examination withreference to the provisions inArticle9 ofSection V,withsupplementary provisions for Section XIuse.
No significant change.
(5)
- VH4322, VH-4330, VH4342 IWA-4500, Fig. IWA-4513-1, Fig. IWA-4531.1-1, Fig. IWA-4532.1-1 Practical Examination Provisions for Level IHNDE Personnel - SNT-TC-1Aprovides forpractical examinations ofNDE Level I and Level H qualifications. This change requires practical examinations for quali6cation and recertification ofLevel IHNDE personnel for Section XI.
This revision incorporates the provisions ofCase N-489.
Repair Welding - This revision updates the temperbead welding requirements and replaces halfbead welding with temperbead welding, for greater consistency withthe welding requirements in Section HI.
No significant change.
No significant change.
(7)
IWA-5250 (8)
IWC-3513 Corrective Action to be Taken for Leaks in Bolted Connections - This revision changes the requirements to be more specific as to which bolts should be examined when evidence ofleakage is found in a bolted connection during the system pressure test.
Allowable Flaws for Volumetric Examination ofStuds and Bolts - This revision clarifies that for subsurface flaws in studs and bolts, the standards ofTable IWC-3513-1 apply.
No significant change.
No significant change.
35
Item 8 Paragraphs AQected Description Classification Justification for Reduction (9)
(10)
IWF-1210, IWF-1230, IWF-2200, IWF-2410, IWF-2420, IWF-2430, IWF-2500, IWF-3112, IWF-3122, IWF-3410 Appendix IV A-1100, A-5200, A-5300, A-9000 Sampling Plans for Inspection ofComponent Supports - This revision adds a sampling plan for inspection ofcomponent supports. In most cases, this change willcause a decrease in the number ofpiping supports to be examined, and an increase in the number ofother component supports to be examined.
This revision incorporates the provisions ofCase N-491.
Eddy Current Examination ofNonferromagnetic Steam Generator Heat Exchanger Tubing - This revision is a rmvrite ofAppendix IVwhich incorporating latest multilrequency techniques foreddy current examination. This revision incorporates the provisions ofCase N401-1.
DefinitionofTerms Relating to Flaw Evaluation - This revision adds and modifies definitions relating to flaw evaluation and acceptance.
Less restrictive.
No significant change.
No significant change.
This revision allows a sampling ofsupports, rather than a 100% examination, based on the results of evaluations made in the past.
There have been no significant problems withthe supports and sampling provides a realistic means to provide appropriate evaluations.
(12)
A4300 Fatigue Crack Growth Rate - This change provides fatigue crack growth curves forferriticsteel in an air and water environment. This revision incorporates the provisions of Case N-463-1.
Less restrictive.
The new methodology provides an equivalence with the current procedures.
(13)
(14)
Fig. AA400-I IWA-9000, IWB-4332, Table IWD-2500-1 Effect ofFast Neutron Fluence and Copper Content Shift on RT~ - This revision deletes the figure which was noted, "In Course ofPreparation."
EDITORIAL No significant change.
36
Item 8 Paragraphs Affected Description Classification Justification for Reduction (15)
IWA-2110, IWA-5214, IWA-7210, Fig. IWB-3610-1,
- IWB4241, IWB-4242, Table IWC-2500-1, Table IWC-3510-1, Table IWC-3511-1, Fig. G-2210-1, H-1300, H-3210, Table H4211-1,
- H4221, Table H-5310-1, Table H-5310-2, H-5420, Table H-5410-1, Table H-5410-2, H-6310, H-6320, Table H-6310-2 ERRATA 37
Item 8 Paragraphs Affected Description 1989 ADDENDA Classification Justification for Reduction (2)
(3)
(4)
IWA-1400, IWA-4130, IWA-6220 Table IWA-1600-1 Table IWA-1600-1, I-2000, Appendix VIII IWA-2110 IWA-2200 Repair Program - This revision adds new rules that require the Owner to have both a Repair Program and Repair Plans.
The Repair Program contains managerial and administrative (QA) controls, while the Repair Plans contain requirements and procedures specific to each repair.
Referenced Standards - Updated ANSVASMEN626 to 1988.
Ultrasonic Examination Requirements - This revision adds a new mandatory appendix which requires performance demonstration for qualification ofprocedures, equipment, and personnel used forultrasonic detection and sizing of flaws in vessels, bolting, and piping welds. This addition incorporates the provisions ofCase N409-2.
Duties ofthe Inspector - This revision deletes the reference to the Inspection Specialist, because this designation is no longer used in ANSVASMEN626. This change deletes the requirement for the Inspector to obtain assistance in reviewing technical content ofNDE procedures.
Examination Methods - This revision adds a reference to Nonmandatory Appendix D forsurface preparation prior to NDE.
More restrictive.
No significant change.
No significant change.
No significant change.
No significant change.
(6)
IWA-2340 Level IIIEducation - This revision provides that a high school equivalency examination need not be a federal or state administered standardized test.
No significant change.
IWA-2430, IWA-9000 Inspection Intervals - This revision clarifies the definition of "commercial service" for determining the start ofeach inspection interval.
No significant change.
Item 8 (8)
Paragraphs AGected IWA-2431, IWA-2432, IWB-2411, Table IWB-2412-1, Table IWB-2500-1, IWC-2411, Table IWC-2412-1, IWD-2411, Table IWD-2412-1 Description Inspection Program - This revision deletes the 40 year limit on Inspection Programs A and B. The deletion ofthis limit provides continuing inservice inspection requirements for plants aAer they have been operating for 40 years.
Classification Justification for Reduction No significant change.
(9)
(10)
(12)
(13)
(14)
- IWA4700, IWA-9000 IWA-4700 IWA-7320, IWA-9000 IWA-9000 IWB-2500, IWB-3512, Table IWB-2500-1, Table IWB-3410-1 Removal ofBurned Surfaces - This revision clarifies that when metal is thermally cut, removal ofthe burned surface must be by mechanical means.
Pressure Testing ofSeal Welds - This revision exempts seal welds &omthe system hydrostatic test requirements followingrepair by welding.
Pressure Testing ofHalf-bead Weld Repairs - This revision provides an exemption from the hydrostatic test forvessel repairs ofup to 10 percent ofthe design thiclmess made by the half-bead welding technique.
Installation - This revision adds provisions for the installation and testing ofreplacements that are attached to the pressure boundary by mechanical means.
Glossary - Definitions are added for "oveipressure protection" and "safety function".
Category B-D - This revision clarifies that the examination provisions apply to the specified areas offullpenetration welded nozzles in vessels and are not restricted to only the welds.
No significant change.
No significant change.
No significant change.
More restrictive.
No significant change.
No significant change.
39
Item 8 Paragraphs Affected Description Classification Justification for Reduction (15)
(16)
(17)
Table IWB-2500-1, Fig. IWB-2500-8, Table IWB-3410-1, IWB-3514 Table IWB-2500-1 Table IWB-2500-1, Table IWC-2500-1 Pressure Retaining Dissimilar Welds In Vessel Nozzles-This revision clarifies that Examination Category B-F applies to dissimilar metal welds only in vessel nozzles, not lilplplllg.
Pressure Retaining Bolting Greater Than 2 Inches In Diameter - This revision replaces the surface examination requirement forreactor vessel closure head nuts (item B6.10) with a VT-1 visual examination meeting the acceptance criteria ofIWB-3517. Prior to this revision, there was no acceptance criteria given for the surface examination.
Examination ofPressure Retaining Welds in Piping - This revision clarifies that pressure retaining welds in carbon and low alloy steel piping are to be examined by ultrasonic examination for transverse indications only when reportable transverse indications were found during the preservice examination.
No significant change.
No significant change.
No significant change.
(18)
IWB-3650, Appendix H IWB-4300 Acceptance Criteria for Flaws in Ferritic Piping - This revision provides evaluation techniques and acceptance criteria for evaluating flaws in ferriticpiping that exceed the acceptance standards ofIWB-3514.2. This revision incorporates the provisions ofCase N-463.
Heat Exchanger Tubing - This revision adds provisions for repair ofheat exchanger tubing by sleeving. The sleeving methods include explosive welding, fusion welding, brazing, and mechanical, hydraulic, or explosive expansion.
Less restrictive.
More restrictive.
The new methodology provides an equivalence with the current procedures.
40
Item 8 Paragraphs Affected Description Classification Justification for Reduction (20)
IWC-1221, IWC-1222, IWD-1220 Components Exempt From Examination - This revision was intended to clarifythe existing provisions regarding exemptions &om examination for Class 2 and 3 piping systems.
However, the revision expanded the exemption to include vessels ofall sizes in exempt piping.
Less restrictive.
The revision incorporates the provisions ofCase N408-2 which has been accepted by the NRC. The change merely provides that components in an exempt piping system are also exempt &om the inservice examinations.
This change does not reduce safety.
(21)
IWF-5400 (22)
Appendix F Repairs and Replacements for Snubbers - This revision deletes reference to ORM-1987, Part 4 (Rev. I) forrepair and replacement ofsnubbers because the repair and replacement requirements ofORM Part 4 are not consistent.
with Section XIrequirements.
Valve Test Tables - This revision adds a new Footnote to reference ANSVASMEOM, Part 10, 5210 and 5320 for identifying valves required to be exercised.
No significant change.
No significant change.
41
(23)
IWB-3641.3, IWB-7100, IWB-7300, IWB-7400, IWB-7600, IWC-7200, IWC-7300, IWC-7600, IWD-7200, IWD-7300, IWD-7600, IWF-7100, IWF-7300, IWF-7310, IWF-7400, IWF-7600 Item 4 Paragraphs Affected Description ERRATA Classification Justification for Reduction file:rr35tb-i.wpd 42
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