ML20207H329
| ML20207H329 | |
| Person / Time | |
|---|---|
| Issue date: | 05/31/1999 |
| From: | NRC OFFICE OF NUCLEAR REGULATORY RESEARCH (RES) |
| To: | |
| References | |
| REGGD-01.147, REGGD-1.147, NUDOCS 9906160059 | |
| Download: ML20207H329 (6) | |
Text
U.S. NUCLEAR REGULATORY COMMISSION Revision 12
/aano May 1999 fg%e REGULATORY GUIDE OFFICE OF NUCLEAR REGULATORY RESEARCH REGULATORY GUIDE 1.147 (Draft was issued as DG-1050)
INSERVICE INSPECTION CODE CASE ACCEPTABILITY, ASME SECTION XI, DIVISION 1 A. INTRODUCTION General Design Criterion 1, " Quality Standards and Records," of Appendix A," General Design Crite-Section 50.55a, " Codes ami Standards," of 10 CFR ria for Nuclear Power Plants," to 10 CFR Part 50 re-Part 50," Domestic Licensing of Production and Uti-quires, in part, that structures, systems, and compo-lization Facilities," requires, in part, that each operating nents important to safety be designed, fabricated, license for a boiling or pressurized water-cooled nu-erected, and tested to quality standards commensurate clear power facility and each construction permit for a with the importance of the safety function to be per-utilization facility be subject to the conditions in para-formed. Where generally recognized codes and stan-graph (g), " Inservice inspection Requirements," of 10 dards are used, Criterion 1 requires that they be identi-CFR 50.55a. Paragraph (g) requires, in part, that fied and evaluated to determine their applicability, Classes 1,2, and 3 components and their supports meet adequacy, and sufficiency and be supplemented or
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the requirements of Section XI," Rules for Inservice In-modified as necessary to ensure a quality product in spection of Nuclear Power Plant Components,"1 ofthe keeping with the required safety function.
American Society of Mechanical Engineers (ASME)
[;
Boiler and Pressure Vessel Code or equivalent quality This regulatory guide lists those Section XI ASME
/ /
standards. Paragraph 50.55a(b), in part, references the Code Cases that are generally acceptable to the NRC latest editions and addenda in effect of Section XI of the staff for implementation in the inservice inspection of Code and any supplementary requirements to that sec-light-water-cooled nuclear power plants. The guide isg tion of the Code. Footnote 6 to 10 CFR 50.55a states being revised to update the NRC's position on new that the use of specific Code Cases may be authorized Code Cases, revised Code Cases, and annulled Code by the Commission upon request pursuant to 10 CFR Cases since Revision 11 of the guide was issued in Oc-50.55a(a)(3), which requires that proposed alternatives tober 1994.
to the described requirements or portions thereof pro-vide an acceptable level of quality and safety.
This regulatory guide contains no information collection activities and, therefore,is not subject to the ICopics may be obtained from the American Society of Mechanical Engi-neers. Three Park Avenue, New York. NY 10016-5990. Phone re9uirements, of the PaEerwork Reduction Act of 1980 (212)$91 -8500; fax (212)591-8501.
(44 U.S.C. 3501 et seq.).
USNRC REGULATORY GUIDt3 The guident are issued in the following ten broad demons bon as c
to the C t it for parts the
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en nd Plant action 1
ene unil De accootable if they provide a basis for the findings requisite to the issuance or con.
teruance of a permit or license by the Commismon.
Single Copist of regulatory guides may be obtained free of charge by wnting to the Repro.
D menta and suggestons forimprovementsin these guides are encouraged at all ames, and This Duide was issued after conaderation of comments recoved from the public. Com-duchon and DistnMionSewes Sochon Mce of the ChimnfonnabonMcer u $ Nu, sai s "
gozdes will be revised as appropnate, to accommodate comments and to reflect newin.
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Wn ma be sutmtted to the Rules and Direcbves Branch, ADM, U S Nu-a nd er b De a th c maybe b ng N 5 5 elear Regulatory Commissart Washingtort DC 20556-0001.
Royal Road, Spnngfield, VA 22181.
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H. DISCUSSION riodic updating to accommodate new Code Cases and any revision of existing Code Cases.
The ASME Boiler and Pressure Vessel Committee C. REGULATORY POSITION publishes a document entitled oCode Cases.,q Gener-ally, the individual Code Cases that make up this docu-1.
ACCEPTABLE CODE CASES ment explain the intent of Code rules or provide for al-2 The Section XI ASME Code Cases listed below ternative requirements under special circumstances.
(by number, date of ASME approval,3and title) are ac-Most Code Cases are eventually superseded by re-ceptab!c to the NRC staff for application in the inser-vision of the Code and then are annulled by action of the vice inspection of components and their supports for ASME. In such instances, the intent of the annulled water-cooled nuclear power plants. Their use is accept-Code Case becomes part of the revised Code, and there-able within the limitations stated in the " Inquiry" and fore continued use of the Code Case intent is sanctioned
" Reply" sections of each individual Code Case, within under the rules of the Code. In other instances, the Code the limitations of such NRC or other requirements as Case is annulled because it is no longer acceptable or may exist, and within the additional limitations recom-there is no further requirement for it. A Code Case that mended by the NRC staff and given with the individual was approved for a particular situation and not for a ge-Code Case in the list.
neric application should be used only for the approved 1705-1 03-01-76 Ultra. sonic Examination-situation because annulment of such a Code Case could N-98 11-20-78 Calibration Block Tolerances, result in situations that would not meet Code require-01-21-82 Section XI l
ments. The ASME considers the use of Code Cases to 12-05-84 I
be optional for the user and not a mandatory require-12-05-87 ment.
12-03-90 The Code Cases listed in this guide are limited to 08-09-93 those cases applicable to Section XI of the Code.
N-113-1 12-13-82 Basic Calibration Block for All published Code Cases that are applicable to 02-14-85 Ultrasonic Examination of Section XI of the Code and were in effect on May 12, 02-14-88 Welds 10 in. to 14 in. Thick, 1994,* were reviewed for inclusion in this guide. Code 12-03-90 Section XI, Division 1 Cases that are not listed herein are either not endorsed 08-09-93 or will require supplementary provisions on an indi-N-2114 07-13-81 Recalibration of Ultrasonic vidual plant basis to attain endorsement status.
07-13-84 Equipment Upon Change of The endorsement of a Code Case by this guide 05-07-87 Personnel,Section XI, constitutes acceptance ofits technical position for ap.
04-30-90 Division 1 plications not precluded by regulatory or other require.
04-30-93 ments or by the recommendations in this or other regu-N-235 01-08-79 Ultrasonic Calibration Checks I
latory guides. Contingent endorsement if applicable is 04-02-82 per Section V,Section XI, indicated in Regulatory Position 1 for specific cases.
02-14-85 Division 1 However,it is the responsibility of the user to make cer-02-14-88 tain that no regulatory requirements are violated and 12-03-90 that there are no conflicts with other recommended lim-08-09-93 itations resulting from Code Case usage.
N-236-1 09-05-85 Repair and Replacement of Acceptance or endorsement by the NRC staff ap-09-05-88 Class MC Vessels,Section XI, plies only to those Code Cases or Code Case revisions 08-14-91 Division 1 with the date of ASME approval as shown in the Regu-latory Position of this guide. Earlier or later revisions of a Code Case are not endorsed by this guide. New Code Cases will require evaluation by the NRC staff to deter-
^ numencannung of the Code Cases appears in the Appenda mine whether the Sualify for inclusion in the approved 3 When more than one date is given, the earlier date is that on w hich the list. Because of the continuing change in the status of Code Case w as approved by the AsME, and the later date (or dates) is Code Cases, it is planned that this guide will require pe.
that on w hich the Cale Case was reaffirmed by the ASME.
4The Code Case w as annulled on 3-20-81 ( ASME mandatory annulment date). It was remstated on 713-81. Because there w as no change n the Code Case, the NRC considers that the Case was in effect dunng the
't.ines indicate substantive changes from Revision 11.
penod 3-20-81 through 7-13 81.
1.147 - 2
N-307-1 12-05-84 Revised Ultrasonic Examina-or Installation of Replacement 12-05-87 tion Volume for Class 1 Items by Welding, Class 1,2, h[
\\
12-03-90 Bolting, Table IWB-2500-1, and 3,Section XI, Division I 08-09-93 Examination Category B-G-l' Code Case N-416-1 is acceptable subject to the fol-When the Examinations Are lowing condition in addition to those c(mditions speci-Conducted from the Center-fied in the Code Case. Additional surface examinations Drilled flole,Section XI, should be performed on the root (pass) layer of butt and Division 1 socket welds of the pressure retaining boundary of N-311 05-11-81 Alternative Examination of Class 3 components when the surface examination 04-05-84 Outlet Nozzle on Secondary method is used in accordance with Section III.
05-07-87 Side of Steam Generators, N-429-1 02-23-87 Alternative Rules for Ultra-04-30-90 Section XI, Division 1 03-05-90 sonic Instrument Calibration, 02-12-93 07-27-92 Section XI, Division 1 N-335-1 06-20-85 Rules for Ultrasonic Examina-N-432 02-20-86 Repair Welding Using Auto-06-20-88 tion of Similar and Dissimilar 02-20-89 matic or Machine Gas 05-13-91 Metal Piping Welds, Sectio 3 12-16-91 Tungsten-Arc Welding (GTAW) 05-11-94 XI, Division 1 Temperbead Technique, N-355 07-16-82 Calibration Block for Angle Section XI, Division 1 02-14-85 Beam Ultrasonic Examination N-435-1 07-30-86 Alternative Examination 02-14-88 of Large Fittings in Accor-07-30-89 Requirements for Vessels with 12-03-90 dance with Appendix 111-3410, 07-30-92 Wall Thickness 2 in or less, 08-09-93 Section XI, Division 1 Section XI, Division 1 N-356 07-01-885 Certification Period for N-437 07-30-86 Use of Digital Readout and 10-23-88 Level 111 NDE Personnel, 07-30-89 Digital Measurement Devices O
08-05-94 Section XI, Division 1,2 and 3 07-30-92 for Performing Pressure Tests, N-389-1 12-09-93 Alternative Rules for Repairs,Section XI, Division 1 Replacements, or Modifica-N-448 07-27-87 Qualification of VT-2 and tions,Section XI, Division 1 04-30-90 VT-3 Visual Examination N-401 1 05-04-88 Eddy Current Examination, 04-30-93 Personnel,Section XI, 05-13-91 Section XI, Division 1 Division 1 05-11-94 N-449 07-27-87 Qualification of VT-4 Visual N-402-1 03-14-91 Eddy Current Calibration 04-30-90 Examination Personnel, 05-11-94 Standards,Section XI, 04-30-93 Section XI, Division 1 Division 1 N-457 12-07-87 Qualification Specimen Notch N-408-3 08-09-93 Alternative Rules for Examina.
12-03-90 Location for Ultrasonic tion of Class 2 Piping, Section 08-09-93 Exannation of Bolts and Studs, XI, Division 1 Section XI, Division 1 N-409-3 04-30-93 Procedure and Personnel Quali-N-458 08-14-90 Magnetic Particle Examination fication Requirements for Ultra-04-30-93 of Coated Materials,Section XI, sonic Detection and Sizing of Division 1 Flaws in Piping Welds, Section N-460 07-27-88 Alternative Examination Cover-XI, Division 1 05-13-91 age for Class 1 and Class 2 N-415 09-05-85 Alternative Rules for Testing 05-11-94 Welds,Section XI, Division 1 09-05-88 Pressure Relief Devices, Sec-N-461 11-30-88 Alternative Rules for Piping 08-14-91 tion XI, Division 1 08-14-91 Calibration Block Thickness, N-416-1 02-15-94 Alternative Pressure Test Re-Section XI, Division 1 tV quirements for Welded Repairs Code Case N-461 is acceptable subject to the fol-Duly 1,1988,is the date that conditions of the Code Case were acceptable to the NRC.
fied in the Code Case: Thickness measurements and 1.147 - 3
weld joint contour of the pipe / component must be Examiners,Section XI, Divi-known and used by the inspector who conducts the UT sions 1,2, and 3 examination.
N-491-1 04-30-93 Alternative Rules for Examina-N-463-1 03-05-90 Evaluation Procedures and Ac.
tion of Class 1,2,3 and MC ceptance Criteria for Flaws in Component Supports of Light-Class 1 Ferritic Piping That Water Cooled Power Plants, Exceed the Acceptance Stan-Section XI, Division 1 dards ofIWB-3514J Section N-494-2 12-09-93 Pipe Specific Evaluation Proce-
, Dmsion 1 dures and Acceptance Criteria N-465 11-30-88 Alternative Rules for Pump for Flaws in Class 1 Ferritic 08-14-91 Testing,Section XI, Piping that Exceeds the Accep-Division 1 tance Standards of IWB-3514.2, N-471 04-30-90 Acoustic Emission for Suc-02-12-93 cessive Inspections,Section XI, N-495 12-03-90 flydrostatic Testing of Relief Division 1 12-09-93 Valves,Section XI, Division 1 Code Case N-471 is acceptable subject to the fol.
N-496-1 05-11-94 IIelical Coil Threaded Inserts, lowing conditions in addition to those specified in the Section XI, Division 1 Code Case: The first successive examination required N-498-1 05-11-94 Alternative Rules for 10-Year by IWB-2420 or IWC-2420 shall be performed. The Ilydrostatic Pressure Testing for owner shall evaluate the results of the on-line acoustic Class 1,2, and 3 Systems, Sec-emission monitoring to confirm that the conclusions tion XI, Division 1 from the acoustic emission data represent the condition of the flaw indication as estimated from the first succes.
N-503 02-05-92 Limited Certification of Nonde-sive ISI Examination and the data can be correlated structive Examination Person-with the known plant operating environment.
nel,Section XI, Division 1 N-504-1 08-09-93 Alternative Rules for Repair of N-472 03-08-89 Use of Digital Readout and 12-16-91 Digital Measurement Devices Class 1,2, and 3 Austenitic for Performing Pump Vibration Stainless Steel Piping, Section Testing,Section XI, Division 1 XI, Division 1 N-473 03-08-89 Alternative Rules for Valve N-509 11-25-92 Alternative Rules for the Selec-ti n and Examination of Class 12-16-91 Testing,Section XI, Division 1 1,2, and 3 Integrally Welded N-479-1 12-03-90 Boiling Water Reactor (BWR)
Attachments,Section XI, Divi-12-09-93 Main Steam Ilydrostatic Test, sion 1 Section XI, Division 1 Code Case N-509 is acceptable subject to the fol-N-481 03-05-90 Alternate Examination Re-lowing condition in addition to those conditions speci-11-25-92 quirements for Cast Austenitic fied in the Code Case: A minimum 10% sample ofinte-Pump Casings,Section XI, grally welded attachments for each item in each code Division 1 class per interval should be examined.
N-485-1 08-14-91 Eddy Current Examination of N-512 02-12-93 Assessment of Reactor Vessels Coated Ferritic Surfaces as an With Low Upper Shelf Charpy Alternative to Surface Examina-Impact Energy Levels, Section tion,Section XI, Division 1 XI, Division 1 N-489 08-14-90 Alternative Rules for Level III N-514 02-12-93 low Temperature Overpressure 04-30-93 NDE Oualification Examina-Protection,Section XI, Divi-tions,Section XI, Divisions 1, sion 1
, and 3 N-515 02-12-93 Class 1 Mechanical Joint Pres-N-490-1 05-13-91 Alternative Vision Test Re-sure Tests,Section XI, Divi-05-11-94 quirements for Nondestructive sion 1 1.147 - 4
_ _ - - - - - - ~ - - - - - -. - _ - -
N-516 08-09-93 Underwater Welding, Section 2.
ANNULLED CODE CASES XI, Division 1 Code Cases that were endorsed by the NRC in a
[
Code Case N-516 is acceptable subject to the fol-prior version of this guide and were later annulled by D
lowing condition in addition to those conditions speci-action of the ASME should be considered as deleted fled in the Code Case. When welding is to be performed fr m the list of acceptable Code Cases as of the date of on high neutron fluence Class 1 material, then a mock-the ASME action that approved the annulment. Such up, using material with similar fluence levels, should Code Cases that were annulled on or after November 1, be welded to verify that adequate crack prevention mea-1978, are listed below by number, effective dates,6and sures were used.
title.
1551 11-06-72 Inservice Inspection of Welds N-517 02-15-94 Quality Assurance Program Re-(N-34) 11-20-78 on Nuclear Components, quirements for Owners, Section 11-20-81 Section XI XI, Division 1 1646 08-12-74 Partial Postponement of Cate-(N-72) 11-20-78 gory B-C Examination for N-521 08-09-93 Alternative Rules for Deferral 01-01-81 Class 1 Components, Section ofInspections of Nozzle-to-XI Vessel Welds, inside Radius 1647 08-12-74 Partial Postponement of Cate-Sections, and Nozzle-to-Safe (N-73) 11 20-78 gory B-D Examination for End Welds of a Pressurized Wa-01-01-81 Class 1 Components, Section ter Reactor (PWR) Vessel, Sec-XI tion XI, Division 1 1730 11-03-75 Acceptance Standards for Class (N-112) 07-01-79 2 and 3 Components,Section XI, Division 1 N-522 12-09-93 Pressure Testing of Contain-(~N ment Penetration Piping, Sec-1738 12-22-75 Examination-Acceptance (v) tion XI, Division 1 (N-118) 11-20-78 Standards for Surface Indica-01-21-82 tions in Cladding,Section XI Code Case N-522 is acceptable subject to the fol-01-21-85 lowing condition in addition to those conditions speci-01-21-88 fled in the Code Case. The test should be conducted at 12-03-90 the peak calculated containment pressure and the test procedure should pernyit the detection and location of Code Case 1738 (N-118) was acceptable subject to through-wall leakage in containment isolation valves the following condition in addition to those conditions (CIVs) and pipe segments between the CIVs.
specified in the Code Case. The last sentence of the
" Reply" should be replaced with the fol! awing: The provisions of this Code Case may not be applied for the examination of clad surfaces of nozzles, including the N-524 08-09-93 Alternative Examination Re-inner surface of the nozzle-to-vessel insert welds.
quirements for Longitudinal Welds in Class 1 and 2 Piping, 1804 01-14-77 Minimum Section ThicknessSection XI, Division 1 (N-167) 01-14-80 Requirements for Repair of Nozzles,Section XI, Divi-sion 1 N-537 03-14-95 Location of Ultrasonic Depth-N 210 03-20-78 Exemption to Hydrostatic Tests Sizing Flaws,Section XI, Divi-03-20-81 After Repairs,Section XI, Di-sion 1 vision 1 Code Case N-210 was acceptable subject to the fol-lowing condition in addition to those conditions speci-N-541 06-09-95 Alternative Requirements for fied in the Code Case. Paragraph (3) of the " Reply" l
Performance Demonstration in Accordance with Appendix
- Earner daie--date code case was approved by AsME:ianer daie-daie Vill, SuEE emen.s 4 and 6, Sec-code case was annuiied. Where more than two dates appear,the last date l
is the date that the Code Case was annulled. The middle date (or dates) tion XI, Division 1 was the date of reaffirmation of the Code Case.
l 1.147-5
should be replaced with the following: Repairs to pip-should be noted (for reference) with the significant in-ing, pumps, and valves where the depth of the repaired dication data.
cavity does not exceed 25 percent of the wall thickness.
N-288 08-25-80 flydrostatic Ten Requirements N'211 03-20-78 Recalibration of Ultrasonic 05-25-83 for Class 1 and Class 2 Com-03-20-81 Equipment Upon Change of ponents,Section XI, Division 1 Personnel,Section XI, N-306 01-15-81 Calibration Block Material Division 1 04-05-84 Selection, Appendix 1,1-3121, N-216 03-10-78 Alternative Rules for Reactor 05-07-87 Section XI, Division 1 07-13-81 Vessel Closure Stud Examina-05-07-90 07-13-84 tion,Section XI, Division 1 N-308 09-30-81 Documentation of Repairs and 05-07-87 09-30-84 Replacements of Components 05-07 90 09-30-87 in Nuclear Power Plants, N-234 01-08-79 Time Between Ultrasonic Cal-04-30-90 Section XI, Division 1 01-21-82 ibration Checks,Section XI, 09-30-90 12-05-84 Division 1 N-343 04-02-82 Alternative Scope of Examina-12-05-87 02-14-85 tion of Attachment Welds for 12-03-90 02-14-88 Examination Categories B-H, N-252 11-19-79 Low Energy Capacitive Dis-12-03-90 B-K-1, and C-C,Section XI, 07-16-82 charge Welding Method for Division 1 Temporary or Permanent At-N-375-2 04-05-84 Rules for Ultrasonic Examina-ti.chments to Components and 05-07-87 tion of Bolts and Studs, Supports,Section III, Division 05-07-90 Section XI, Division 1 I ' ""
N-406 04-05-84 Alternative Rules for Replace-Code Case N-252 was acceptable subject to the fol-05-07-87 ment,Section XI, Division 1 lowing condition in addition to those conditions speci-05-07-90 fied in the Code Case: The applicant should indicate in N-419 07-18-85 Extent of VT-1 Examinations, the Safety Analysis Report the application, the maten-07-18-88 Category B-G-1 of Table al, and the thickness of the material to which the strain 05-13-91 IWB-2500-1,Section XI, gage or thermocouple will be attached by CD welding.
05-13-94 Division 1 N-278 03-17-80 Alternative Ultrasonic Calibra-N-424 07-18-85 Oualification of Visual 03-17-837 tion Block Configuration 07-18-88 Examination Personnel, Sec-05-25-837 1-3131 and T-434.3, Section tion XI, Division 1 02-19-86 XI, Division 1 02-19-89 N-426 07-18-85 Extent of VT-1 Examinations, 02-19-92 07-18-88 Category B-G-2 of Table 05-13-91 1WB-2500-1,Section XI, Code Case N-278 was acceptable subject to the fol-05-13-94 Division 1 lowing conditions in addition to those conditions speci-fied in the Code Case: When a universal calibration N-436-1 12-07-87 Alternative Methods for block is used and some or all of the reference holes are 12-03-90 Evaluation of Flaws in Auste-larger than the reflector holes at comparable depths ree-nitic Piping,Section XI, Divi-S8"" I ommended by Article IV,Section V,1980 edition of the ASME Code, a correction factor should be used to ad-N-4448 12-07-87 Preparation of Inspection Plans, just the DAC level to compensate for the larger reflector 12-03-90 Section XI, Division 1 holes. Also,if the reactor pressure vessel was previous-ly examined by using a conventional block, a ratio be-tween the DAC curves obtained from the two blocks l
"Vahe stroke times inay be documented outside of the isT program.
7Code Case N-278 was inadvergently allowed to expire because of an However,if included within the IST program and it becomes necessary AsME administrative error on 3-17-83, its ma.idatory annulment date-to revise the mcximum stroke time required by " supplement The Code case, without any technical changes, was reinstated on 4---Content of IWV Valve Test lables," it is not necessary to submit a 5-25 91 Decause of these circumstances, the Code Case is considered to revised ISTprogram to the NRC solely to document a reusson m vah e be in effect durmg that period of time, stroke time.
1.147 - 6
N 445 05-07-87 Use of Later Editions of SNT-N-307 01-15-81 Revised Ultrasonic Examina-05-07-90 TC-1 A for Qualification of 04-05-84 tion Volume for Class 1 Bolt-
/9 Nondestructive Examination 12-05-84 ing, Examination Category
()
Personnel,Section XI, Divi-B-G 1, When the Examinations sion 1,2, and 3 Are Conducted from the Cen-N-446 05-07-87 Recertification of Visual Exam-ter-Drilled IIole,Section XI, 05-07-90 ination Personnel,Section XI, Division 1 Division 1 N-335 04-02-82 Rules for Ultrasonic Examina-02-14-85 tion of Similar and Dissimilar 3.
REVISED CODE CASES 06-20-85 Metal Piping Welds, Section Code Cases that were endorsed by the NRC in a XI, Division 1 prior version of this guide and were superseded by re-N-37510 02-14 83 Rules for Ultrasonic Examina-vised Code Cases on or after November 1,1978, should 04-14-83 tion of Bolts and Studs, be considered as not endorsed as of the date of the Section XI, Division 1 ASME action that approved the revised version of the N-375-1 04-14-83 Rules for Ultrasonic Examina-Code Cases. These Code Cases that are no longer en-04-05-84 tion of Bolts and Studs, Sec-dorsed are listed in the following by number, effective I
dates,9 and title.
tion XI, Division 1 N-389 07-25-83 Alternative Rules for Repairs, 1731 11-03-75 Basic Calibration Block for 05-14-89 Reph. cements, or Modifica-(N-113) 11-20-78 Ultrascnic Examination of 05-14-86 tions,Section XI, Division 1 01-21-82 Welds 10 in. to 13 in. Thick, 02-05-92 12-13-82 Section XI, Division 1 12-09-93 N-236 01-08-79 Repair and Replacement of Code Case N-389 was acceptable subject to the fol-01 21-82 Class MC Vessels, Section lowing condition in addition to those conditions speci-p 12-05-84 XI, Division 1 fied in the Code Case: The applicant should submit for
(
09-05-85 approval the appropriate edition and addenda of the Code Case N.236 was acceptable subject to the fol-Code that is to be used for the repair, replacement, or lowing conditions in addition to those conditions speci-modification before start of the work.
fied in the Code Case: a. In paragraph 1.0(a), second N-401 02-20-84 Eddy Current Examination, sentence, the phrase,"while the plant is not in service,"
02-23-87 Section XI, Division 1 refers to a refueling outage, b. In paragraph 1.0(a), third 05-04-88 sentence, the phrase,"the next scheduled plant outage,"
N-402 02-20-84 Eddy Current Calibration Stan-refers to the next scheduled refueling outage.
02-23-87 dard Material,Section XI, For clarification, Repair and Replacement of Class 03-05-90 Division 1 MC Vessels means Repair and Replacement of Class 03-14-91 MC Vessels and Components (sy:,tems). Accephnce of N-408 07-12-84 Alternative Rules for Examina-this Code Case in no way infers NRC approval to vio-05-07-87 tion of Class 2 Piping, Section late the technical specification or any NRC require-03-08-89 XI, Division 1 ments with regard to breach of containment during re-pair and replacement procedures while the plant is in N-408-1 03-08-89 Alternative Rules for Examina-operation.
07-24-89 tion of Class 2 Piping,Section XI, Division 1 Where a numbered Code paragraph is not identi-fied by a particular edition of the Code, the Code in ef-Code Case N-408-1 was acceptable subject to the feet at the time of the ASME meeting (11 3-78) that ap-following condition in addition to those conditions spe-7 proved the Code Case should be govermng.
c fied in the Code Case: The applicant for an operating license should define the Class 2 piping subject to voln-metric and surface examination in the Preservice In-q spection for determination of acceptability by the NRC f
)
TEarlier date-date Code Case was approved by AsME; later date--date staff.
<Q/
revision of Code Cs e was approved by AsME. Where more than two l
dates appear,the last date is the date on w hich the Code Case was revised.
The middle date (or dates) was the date of restfirmation of the Code M
- Case, Code Case N 375 was not listed prior to RevisVn 3 of this regulatory guide.
1.147 - 7
N-408-2 07-24-89 Alternative Rules for Examina-Austenitic Piping,Section XI, 07-24-92 tion of Class 2 Piping, Section Division 1 08-09-93 XI, Division 1 N-463 11-30-88 Paluation Procedures and Code Case N-408-2 was acceptable subject to the 03-05-90 Acceptance Criteria for Flaws following condition in addition to those conditions spe-in Class 1 Ferritic Piping That cifled in the Code Case: The applicant for an operating Exceed the Acceptance Stan-license should define the Class 2 piping subject to volu-dards of IWB-3514.2, Section metric and surface examination in the Preservice In-XI, Division 1 spection for determination of acceptability by NRC N-479 07-24-89 Boiling Water Reactor (BWR) staff.
12-03-90 Main Steam flydrostatic Test, N-409 12-05-84 Procedure and Personnel Quali-Section XI, Division 1 12-07-87 fication for Ultrasonic Detec-N-485 04-30-90 Eddy Current Examination of tion and Sizing ofIntergranular 08-14-91 Coated Ferritic Surfaces as an Stress Corrosion Cracking in Alternative to Surface Ex-Austenitic Piping Welds, Sec-amination,Section XI, Divi-
- t. ion XI, Division 1 sion 1 N-409-1 12-07-87 Procedure and Personnel Quali-N-490 08-14-90 Alternative Vision Test 07-27-88 fication Requirements for Ul-05-13-91 Requirements for Nondestruc-trasonic Detection and Sizing Hve Examiners,Section XI, Di-of Flaws in Piping Welds, Sec-visions 1,2, and 3 tion XI, Division 1 N-491 03-14-91 Alternative Rules for Examina-Code Case N-409-1 was acceptable subject to the 04-30-93 tion of Class 1,2,3 and MC following condition in addition to those conditions spe-Component Supports of Light-cified in the Code Case: The applicant should give prior Water Cooled Power Plants, notification to the NRC of the intention to use the Code Section XI, Division 1 Case.
N-494 12-03-90 Pipe Specific Evaluation Pro-N-409-2 07 27-88 Procedure and Personnel Quali-07-17-92 cedures and Acceptance Crite-05-13-91 fication Requirements for ria for Flaws in Class 1 Ferritic 04 30-93 Ultrasonic Detection and Piping that Exceeds the Accep-Sizing of Flaws in Piping tance Standards of IWB-Welds,Section XI, Division 1 3514.2,Section XI, Division 1 Code Case N-409 2 was acceptable subject to the N ;94-1 07-27-92 Pipe Specific Evaluation Pro-following condition in addition to those conditions spe-12-09-93 cedures and Acceptance Crite-cified in the Code Case: The applicant should give prior ria for Flaws in Class 1 Ferritic notification to the NRC of the intention to use the Code Piping that Exceeds the Accep-Case.
tance Standards of IWB-3514.2,Section XI, Division 1 N-416 12-05-85 Alternative Rules for Hydro-12-05-87 static Testing of Repair or N-496 03-14-91 IIelical Coil Threaded Inserts, 12-03-90 Replacement of Class 2 Piping, 02-15-94 Section XI, Division 1 02-15-94 Section XI, Division 1 05-11-94 N-429 12-05-85 Alternative Rules for Ultra-N-49811 05-13-91 Alternative Rules for 10-Year 02-23-87 sonicInstrument Calibration, 05-11-94 Ilydrostatic Pressure Testing Section XI, Division 1 for Class 1 and 2 Systems, Sec-N-435 05-14-86 Alternative Examination 07-30-86 Requirements for Vessels with Wall Thickness 2 in or Less,Section XI, Division 1 HCode Case N-498 was approved for use by AsME on 513-91. It was N-436 05-14-86 Alternative Methods for included in Resision 9 vi this guide because of an urgent need for th:
12-07-87 Evaluation of Flaws in case.
1.147 - 8
N-504 4-30-92 Alternative Rules for Repair of Regulatory Position 1 acceptable for appropriate use.
8 09-93 Class 1,2, and 3 Austenitic Other Code Cases may be considered for use in accor-(G)
Stainless Steel Piping, Seson dance with footnote 6 of the Codes and Standards rule, XI, Division 1 10 CFR 50.55a.
4.
UNACCEPTABLE COEa LASES
- 2. Components ordered to a specific version of a Code Case need not be changed because a subsequent Code Cases that are not on the approved list of this revision of the Code Case is listed as the approved ver-guide (Regulatory Position 1) or other regulatory sion in this guide, guides, or for which authorization by the Commission has not been granted, are not acceptable on a generic
- 3. Code Cases to be applied during an inspection buis.
mterval or Code Cases for a preservice inspection that were previously approved for use may continue to be D. IMPLEMENTATION used even though the Code Case has been subsequently annulled.
The purpose of this section is to provide informa-tion to applicants regarding the use of this regulatory
- 4. Code Cases on the approved list may be applied E" "'
to procedures for an inspection interval and procedures for the inserviev inspection that were established prior
- 1. Except for those Code Cases that have been an-to the effective date of the Code Case withir the limits nulled by action of the ASME, the NRC staff has found specified in the Code Case and applicable regulations the Code Cases listed in this regulatory guide under or recommended in other regulatory guides.
m
,f
(
rr s
1.147-9
APPENDIX NUMERICAL LISTING OF CODE CASES N-98 (1705-1)
N-432 N-491-1 N-113-1 N-435-1 N-494-2 N-211 N-437 N-495 N-235 N-448 N-496-1 N-236-1 N-449 N-498-1 N-307-1 N-457 N-503 N-311 N-458 N-504-1 N-335-1 N-460 N-509 N-355 N-461 N-512 N-356 N-463-1 N-514 N-389-1 N-465 N-515 N-401-1 N-471 N-516 N-402-1 N-472 N-408-3 N-473 N-517 N-409-3 N-479-1 N-521 N-415 N-481 N-522 N-416-1 N-485-1 N-524 N-427 N-489 N-537 N-429-1 N-490-1 N-541 0
O 1.147 - 10
VALL.' IMPACT STATEMENT
.rN A draft value/ impact statement was published with the draft of this guide when it was published for public comment (Task DG-1050, May 1997). No changes were necessary, so a separate value/ impact statement for Revision 12 of Regulatory Guide 1.147 has not been prepared. A copy of the draft value/
impact statement is available forinspection or copying for a fee in the NRC's Public Document Room at 2120 L Street NW., Washington, DC, under Task DG-1050.
n O
J 1.147 - 11 i
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