ML061240320
| ML061240320 | |
| Person / Time | |
|---|---|
| Site: | San Onofre  |
| Issue date: | 05/01/2006 |
| From: | Katz B Southern California Edison Co |
| To: | Document Control Desk, Office of Nuclear Reactor Regulation |
| References | |
| TAC MC8850, TAC MC8851 | |
| Download: ML061240320 (28) | |
Text
SOUTHERN CALIFORNIA Brian Katz-EDISON Vice President An EDISON INTERNATIONALV Company Withhold from Public Disclosure Under 10 CFR 2.390 (b) (4)May 1, 2006 U.S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 20555
Subject:
San Onofre Nuclear Generating Station, Units 2 and 3 Docket Nos. 50-361 and 50-362 Response to Request For Additional Information and Submittal of Supplement I to Proposed Change Number NPF-10/15-565 License Amendment Request, "Proposed Technical Specification Change, Define the Extent of the Required Tube Inspections and Repair Criteria Within the Tubesheet Region of the Steam Generators"
References:
- 1. Letter from Brian Katz (SCE) to Document Control Desk (NRC) Dated November', 2005,
Subject:
San Onofre Nuclear Generating Station, Units 2 and 3, Docket Nos. 50-361 and 50-362, Proposed Change Number NPF-10/15-565, License Amendment Request, "Proposed Technical Specification Change, Define the Extent of the Required Tube Inspections and Repair Criteria Within the Tubesheet Region of the Steam Generators." 2. Letter from N. Kalyanam (NRC) to Richard M. Rosenblum (SCE) Dated March 23, 2006,
Subject:
San Onofre Nuclear Generating Station, Units 2 and 3 -Request for Additional Information on the Proposed C* Amendment for Steam Generator Tube Inspection and Repair in the Tubesheet (TAC NOS. MC8850 end MC8851)
Dear Sir or Madam:
Southern California Edison (SCE) submitted Reference (1) on November 3, 2005 to request license amendments for San Onofre Units 2 and 3. Those proposed amendments revise Technical Specification (TS) Section 5.5.2.11 to modify the definitions of steam generator tube "Repair Limit" and "Tube Inspection." The purpose of these changes is to define the extent of the required tube inspections and repair criteria within the tubesheet regions. On March 23, 2006 the NRC provided SCE a Request for Additional Information (RAI), Reference (2), to facilitate NRC Staff review of Reference (1). This letter provides the additional information and an associated supplement to the proposed amendment.
Withhold From Public Disclosure Under 10 CFR 2.390 (b) (4)P.O. Box 128 San Clemente, CA 9 2 6 7 4 o0 1 2 WVhen Separated from the Proprietary 49-368-9275 (Enclosure 4), this Document is Decontrolled Fax 949-368-9881 Docurrient Control Desk-2-May 1, 2006 This submittal uses more conservative tube pull-out forces. This necessitates changes to the proposed tubesheet region inspection depths as follows:* Change in the hot leg, from 10.4 to 10.6 inches* Change in the cold leg, from 10.7 to 11.0 inches These changes are provided in Enclosure (3); Supplement 1 to Reference (1). The supplement provides modifications to Reference (1) Technical Specification change pages that provide consistency with Enclosure (4).Enclosure (4) is a proprietary copy of the responses to the NRC RAI. It is Westinghouse Document Number LTR-CDME-06-27-P, Revision 0, dated April 2006, titled "Responses to NRC Request for Additional Information on License Amendmenl Request for Proposed Technical Specification Change Regarding Repair Criteria and Inspection Depth for Steam Generator Tubes within the Tubesheet Region, Southern California Edison San Onofre Nuclear Generating Station, Units 2 and 3, Docket Nos. 50-361 and 50-362." Enclosure (5) is a nonproprietary copy of the response document.
Enclosure (6) is Westinghouse authorization letter CAW-06-2133 with accompanying affidavit, Proprietary Information Notice, and Copyright Notice.The affidavit sets forth the basis on which the information may be withheld from public disclosure by the Commission and addresses with specificity the considerations listed in paragraph (b) (4) of Section 2.390 of the Commission's regulations.
Accordingly, it is respectfully requested that the information which is proprietary to Westinghouse be withheld from public disclosure in accordance with 10 CFR Section 2.390 of the Commission's regulations.
Correspondence with respect to the copyright or proprietary aspects of Enclosures (4) and (6) should be addressed to B. F. Maurer, Manager, Regulatory Compliance and Plant Licensing, Westinghouse Electric Company LLC, P.O. Box 355, Pittsburgh, Pennsylvania 15230-0355.
Should you have any questions, or require additional information, please contact Mr. Jack Rainsberry at (949) 368-7420.Sincerely, Document Control Desk-3-May 1, 2006 Enclosures
- 1. Notarized affidavit, Unit 2 2. Notarized affidavit, Unit 3 3. Supplement 1 to the Proposed License Amendment Request, Proposed Change Number NPF-1 0/15-565, with attachments A -F (modifications to Technical Specification change pages).4. Proprietary copy of the response document, Westinghouse Document Number LTR-CDME-06-27-P, Revision 0, dated April 2006, titled "Responses to NRC Request for Additional Information on License Amendment Request for Proposed'Technical Specification Change Regarding Repair Criteria and Inspection Depth'for Steam Generator Tubes within the Tubesheet Region Southern California Edison San Onofre Nuclear Generating Station, Units 2 and 3, Docket Nos. 5()-.361 and 50-362." 5. Nonproprietary copy of the response document, Westinghouse Document Number LTR-CDME-06-27-NP, Revision 0, dated April 2006, titled "Responses-to NRC Request for Additional Information on License Amendment Request for Proposed Technical Specification Change Regarding Repair Criteria and Inspection Depth for Steam Generator Tubes within the Tubesheet Region Southern California Edison San Onofre Nuclear Generating Station, Units 2 arid:3, Docket Nos. 50-361 and 50-362." 6. 'Westinghouse Application for Withholding Proprietary Information from Public Disclosure with Affidavit cc: 13. S. Mallett, Regional Administrator, NRC Region IV N. Kalyanam, NRC Project Manager, San Onofre Units 2 and 3 C. C. Osterholtz, NRC Senior Resident Inspector, San Onofre Units 2 and 3 S. Y. Hsu, California Department of Health Services, Radiologic Health Branch Enclosure 1 UNITED STATES OF AMERICA NUCLEAR REGULATORY COMMISSION Application of SOUTHERN CALIFORNIA EDISON COMPANY, ET AL. for a Class 103 License to Acquire, Possess, and Use a Utilization Facility as Part of Unit No. 2 of the San Onofre Nuclear Generating Station))))))Docket No. 50-361 Supplement 1 to Amendment Application No. 238 SOUTHERN CALIFORNIA EDISON COMPANY, ET AL. pursuant to 10 CFR 50.90, hereby submit Supplement 1 to Amendment Application No. 238. This amendment application consists of Supplement 1 to Proposed Change No. NPF-10-565 to Facility Operaiing License NPF-10. Proposed Change No. NPF-10-565 is a request to revise Facility Operating License NPF-10 to define the extent of the required steam generator tube inspections and repair criteria within the tubesheet regions.State cf California County of San Diego Brian Katz, Vice Presid&rtf Subscribed and sworn to iFafd* before me on this S day of by Yt- v\ &3/4z personally known to me or-proved to me one bais of satisfactory pidonce to be the person who appeared before me.E'AW 54. WA M LQdCf Notary Public 01ato i 16}23105 IAm Dieo Ca~ou CE"Ma"W0O24 Enclosure 2 UNITED STATES OF AMERICA NUCLEAR REGULATORY COMMISSION Application of SOUTHERN CALIFORNIA EDISON COMPANY, ET AL. for a Class 103 License to Acquire, Possess, and Use a Utilization Facility as Part of Unit No. 3 of the San Onofre Nuclear Generating Station))))))Docket No. 50-362 Supplement 1 to Amendment Application No. 222 SOUTHERN CALIFORNIA EDISON COMPANY, ET AL. pursuant to 10 CFR 50.90, hereby submit Supplement 1 to Amendment Application No. 222. This amendment application consists of Supplement 1 to Proposed Change No. NPF-15-565 to Facility Operating License NPF-15. Proposed Change No. NPF-15-565 is a request to revise Facility Operating License NPF-15 to define the extent of the required steam generator tube inspections and repair criteria within the tubesheet regions.State of California County of San Diego 1121A.CA Brian Katz, Vice PresidenF Subscribed and sworn to (et-affkmiebefore me on this I 5f day of) .SO() C( , by 1 2 5Ian Kit personally known to me oF pFOved-to-me-on-the-basis-of-satisfactory-evidenre to be the person who appeared before me.-aw e = =Notary Public i I I --- 20ACK Enclosure (3)Supplement 1 to the Proposed License Amendment Request, Proposed Change Number NPF-1 0/15-565, with attachments A -F (modifications to Technical Specification change pages)
LICENSEE'S EVALUATION DESCRIPTION FOR PROPOSED CHANGE NPF-10/15-565 SUPPLEMENT 1 PROPOSED TECHNICAL SPECIFICATION CHANGE, DEFINE THE EXTENT OF THE REQUIRED TUBE INSPECTIONS AND REPAIR CRITERIA WITHIN THE TUBESHEET REGION OF THE STEAM GENERATORS San Onofre Nuclear Generating Station Units 2 and 3 ORIGINAL PCN-565 PROPOSED TECHNICAL SPECIFICATION CHANGE (highlight for additions, strikeout for deletions)
Unit 2: see Attachment A Unit 3: see Attachment B PC1N-565 SUPPLEMENT 1 PROPOSED TECHNICAL SPECIFICATION CHANGE REVISIONS (highlight for additions, strikeout for deletions)
Unit 2: see Attachment C (To replace similar pages in PCN-565.)Unit 3: see Attachment D (To replace similar pages in PCN-565.)PCN-565 SUPPLEMENT 1 PROPOSED TECHNICAL SPECIFICATIONS (with changes)Unit 2: see Attachment E (To replace similar pages in PCN-565.)Unit 3: see Attachment F (To replace similar pages in PCN-565.)
1.0 INTRODUCTION
This supplement uses more conservative tube pull-out forces. This necessitates changes to the proposed tubesheet region inspection depths identified in PCN-565 as follows: Change in the hot leg, from 10.4 to 10.6 inches Change in the cold leg, from 10.7 to 11.0 inches 2.0 PROPOSED CHANGE This supplement to PCN-565 provides revised proposed Technical Specification change pages that reflect the above described inspection depths and provide consistency with the SCE responses to the NRC request for additional information (RAI).
3.0 REGULATORY
SAFETY ANALYSIS The no significant hazards consideration and Environmental Consideration provided with PCN-565 both remain bounding.2 Attachment A (Original PCN-565 Pages)SONGS Unit 2 Procedures, Programs, and Manuals 5.5 5.5 Procedures, Programs, and Manuals (continued) 5.5.2.11 Steam Generator (SG) Tube Surveillance Program (continued) e) Imperfection
-An exception to the dimensions, finish, or contour of a tube from that required by fabrication drawings or specifications.
Eddy-current testing indications below 20% of the nominal tube wall thickness, if detectable, may be considered as imperfections; f) Repair Limit -The imperfection depth at or beyond which the tube shall be removed from service or repaired and iJ equal to 44% of the nominal tube wall thickness., Sleeves shall be removed from service upon detection of service-induced degradation of the sleeve material or any portion of the sleeve-to-tube weld.For tubes that have not been repaired (sleeved):
Deqradation detected below the bottom of the hot leq expansion transition or hot leq top of the tubesheet.
whichever is higher. shall be removed from service or repaired on detection.
Degradation detected below the bottom of the cold leq expansion transition or cold leg top of the tubesheet, whichever is higher, shall be removed from service or repaired on detection.
This Repair Limit is not applicable in the portion of the tubing within the hotleg tubesheet as follows: For tubes that have not been repaired: Greater than 10.4 inches below the bottom of the hot leg expansion transition or top of the hot leg tubesheet, whichever is lower.For tubes that have been repaired:
Below the bottom of the pressure retaining portion of the parent tube in contact with the sleeve (the lower joint that is formed by hard-rollinq) or greater than 10.4 inches hplnw thp hnt.tnm of thp hot lpo expansion transition, whichever is lower.(continued)
SAN ONOFRE--UNIT 2 5.0-18 Amendment No. +89 Procedures, Programs, and Manuals 5.5 (continued) 5.5 Procedures, Programs, and Manuals 5.5.2.11 Steam Generator (SG) Tube Surveillance Program (continued) g) Preservice Inspection
-An inspection of the full length of each tube in each SG performed by eddy-current techniques prior to service to establish a baseline condition of the tubing. This inspection shall be performed prior to initial MODE 1 operating using the equipment and techniques expected to be used during subsequent inservice inspections.
These examinations may be performed prior to steam generator installation.
Similarly, for tube repair by sleeving, an inspection of the full length of the pressure boundary portion of the sleeved area shall be performed by eddy current techniques prior to service. This includes pressure retaining portions of the parent tube in contact with the sleeve, the sleeve-1:o-tube weld, and the pressure retaining portion of the sleeve.h) Tube Inspection
-An inspection of the SG tube from the point of entry (hot leg side) eampltl-Cy around tie U bend to the top support of the 4old leg excluding the portion of the tube within-tlhe tubesheet (TS) below 5 inches from the secon h-ry face of the TS.*10.4 inches below the bottom of the hot leg expansion transition or hot leq i:op of the tubesheet, whichever is lower, completely around the U-bend to 10.7 inches below the bottom of the cold leq expansion transition or cold leg top of the tubesheet, whichever is lower.i) Unserviceable
-The condition of a tube if it: leaks or contains a defect large enough to affect its structural integrity in the event of an Operational Basis Earthquake, a loss-of-coolant accident, or a steam line of feedwater line break accident as specified in Specification 5.5.2.11.e.
Unit 2, Cycle 12 operation only.* Th-: exclusion is for (continued)
SAN ONOFRE--UNIT 2 5.0-18a Amendment No. 4434 Attachment B (Original PCN-565 Pages)SONGS Unit 3 Procedures, Programs, and Manuals 5.5 5.5 Procedures, Programs, and Manuals (continued) 5.5.2.11 Steam Generator (SG) Tube Surveillance Program (continued) e) Imperfection
-An exception to the dimensions, finish, or contour of a tube from that required by fabrication drawings or specifications.
Eddy-current testing indications below 20% of the nominal tube wall thickness, if detectable, may be considered as imperfections; f) Repair Limit -The imperfection depth at or beyond which the tube shall be removed from service or repaired and iq equal to 44% of the nominal tube wall thickness., Sleeves shall be removed from service upon detection of service-induced degradation of the sleeve material or any portion of the sleeve-to-tube weld.For tubes that have not been repaired (sleeved):
Degradation detected below the bottom of the hot leg expansion transition or hot leq top of the tubesheet, whichever is higher, shall be removed from service or repaired on detection.
Degradation detected below the bottom of the cold leg expansion transition or cold leg top of the tubesheet, whichever is higher, shall be removed from service or repaired on detection.
This Repair Limit is not applicable in the portion of the tubing within the hotleg tubesheet as follows: For tubes that have not been repaired: Greater than 10.4 inches below the bottom of the hot leg expansion transition or toD of the hot leg tubesheet, whichever is lower.For tubes that have been repaired:
Bel:w the bottom of the pressure retaining portiDn of the parent tube in contact with the sleeve (the lower joint that is formed by hard-rollinq) or greater than 10.4 inches hplnw thp hnttom nf the hot lea expansion transition, whichever is lower.(continued)
SAN ONOFRE--UNIT 3 5.0-18 Amendment No. +84 Procedures, Programs, and Manuals 5.5 5.5 Procedures, Programs, and Manuals (continued) 5.5.2.11 Steam Generator (SG) Tube Surveillance Program (continued) g) Preservice Inspection
-An inspection of the full length of each tube in each SG performed by eddy-current techniques prior to service to establish a baseline condition of the tubing. This inspection shall be performed prior to initial MODE I operating using the equipment and techniques expected to be used during subsequent inservice inspections.
These examinations may be performed prior to steam generator installation.
Similarly, for tube repair by sleeving, an inspection of the full length of the pressure boundary portion of the sleeved area shall be performed by eddy current techniques prior to service. This includes pressure retaining portions of the parent tube in contact with the sleeve, the sleeve-to-tube weld, and the pressure retaining portion of the sleeve.h) Tube Inspection
-An inspection of the SG tube from the point of entry (hot leg side) eompl-t-ely around the U bond to the top support of t leg excluding the portion of the tube within-She tubesheet (TS) below 5 inches from the seconddry face of the TS.*10.4 inches below the bottom of the hot leq expansion transition or hot leci top of the tubesheet, whichever is lower, completely around the U-bend to 10.7 inches below the bottom of the cold leq expansion transition or cold leg top of the tubesheet, whichever is lower.i) Unserviceable
-The condition of a tube if it leaks or contains a defect large enough to affect its structural integrity in the event of an Operational Basis Earthquake, a loss-of-coolant accident, or a steam line of feedwater line break accident as specified in Specification 5.5.2.1l.e.
This exclusion is for Unit 3, CyAlA 11 operation only.(continued)
SAN ONOFRE--UNIT 3 5.0-18a Amendment No. 1890 Attachment C (PCN-565 Supplement 1 Proposed Pages)(Redline and Strikeout)
SONGS Unit 2 Procedures, Programs, and Manuals 5.5 5.5 Procedures, Programs, and Manuals (continued) 5.5.2.11 Steam Generator (SG) Tube Surveillance Program (continued) e) Imperfection
-An exception to the dimensions, finish, or contour of a tube from that required by fabrication drawings or specifications.
Eddy-current testing indications below 20% of the nominal tube wall thickness, if detectable, may be considered as imperfections; f) Repair Limit -The imperfection depth at or beyond which the tube shall be removed from service or repaired and is equal to 44% of the nominal tube wall thickness.
Sleeves shall be removed from service upon detection of service-induced degradation of the sleeve material or any portion of the sleeve-to-tube weld.For tubes that have not been repaired (sleeved):
Deqradation detected below the bottom of the hot lea expansion transition or hot lea top of tie tubesheet.
whichever is hicher. shall be removed from service or repaired on detection.
Degraiation detected below the bottom of the cold lea expansion transition or cold lea too of the tubesheet.
whichever is hicher. shall be remDved from service or repaired on detection.
This Repair Limit is not applicable in the portion of the tubing within the hotleg tubesheet as follows: For tubes that have not been repaired: Greater than 10.6 inches below the bottom of the hot lea expansion transition or too of the hot leg tubesheet, whichever is lower.For tubes that have been repaired:
Below the bottom of the pressure retaining portion of the parent tube in contact with the sleeve (the lower joint that is formed by hard-rollinq) or greater than 10.6 inches below the bottom of the hot lea expansion transition, whichever is lower.(continued)
SAN ONOFRE--UNIT 2 5.0-18 Amendment No.
Procedures, Programs, and Manuals 5.5 5.5 Procedures, Programs, and Manuals (continued) 5.5.2.11 Steam Generator (SG) Tube Surveillance Program (continued) g) Preservice Inspection
-An inspection of the full length of each tube in each SG performed by eddy-current techniques prior to service to establish a baseline condition of the tubing. This inspection shall be performed prior to initial MODE 1 operating using the equipment and techniques expected to be used during subsequent inservice inspections.
These examinations may be performed prior to steam generator installation.
Similarly, for tube repair by sleeving, an inspection of the full length of the pressure boundary portion of the sleeved area shall be performed by eddy current techniques prior to service. This includes pressure retaining portions of the parent tube in contact with the sleeve, the sleeve-to-tube weld, and the pressure retaining portion of the sleeve.h) Tube Inspection
-An inspection of the SG tulye from 10.4 inches below the bottom of the hot-heg expasiontransition or hot leg top of thce b .L. .L --L _ L tube~shct, whichever is lower, completely argued the U bend to 10.7 inches below the bottom oF-the old leg expaniontransition or eold le tor-o~the tubesheet.
whichever is lever.For a tube with no portion of a sleeve extending below (a) 10.6 inches from the bottom of the hot leq expansion transition or the top of the tubesheet (whichever is lower) or (b) 11.0 inches from the bottom of the cold leg expansion transition or the top of the tubesheet (whichever is lower), a tube inspection means an inspection of the steam generator tube from 10.6 inches below the bottom of the hot leq expansion transition or top of the tubesheet (whichever is lower)completely around the U-bend to 11.0 inches below the bottom of the cold leq expansion transition or top of the tubesheet (whichever is lower).(continued)
SAN ONOFRE--UNIT 2 5.0-18a Amendment No.
Procedures, Programs, and Manuals 5.5 5.5 Procedures, Programs, and Manuals (continued) 5.5.2.11 Steam Generator (SG) Tube Surveillance Program (continued)
For all other tubes, a tube inspection means an inspection from the bottom of the sleeve completely around the U-bend to either (a) 10.6 inches below the bottom of the hot leq expansion transition or the top of the tubesheet (whichever is lower) or (b) 11.0 inches below the bottor of the cold leq expansion transition or the top of the tubesheet (whichever is lower), as appropriate.
i) Unserviceable
-The condition of a tube if it leaks or contains a defect large enough to affect its structural integrity in the event of an Operational Basis Earthquake, a loss-of-coolant accident, or a steam line of feedwater line break accident as specified in Specification 5.5.2,11.e.(continued)
SAN ONOFRE--UNIT 2 5.0-18b Amendment No.
Attachment D (PCN-565 Supplement 1 Proposed Pages)(Redline and Strikeout)
SONGS Unit 3 Procedures, Programs, and Manuals 5.5 5.5 Procedures, Programs, and Manuals (continued) 5.5.2.11 Steam Generator (SG) Tube Surveillance Program (continued) e) Imperfection
-An exception to the dimensions, finish, or contour of a tube from that required by fabrication drawings or specifications.
Eddy-current testing indications below 20% of the nominal tube wall thickness, if detectable, may be considered as imperfections; f) Repair Limit -The imperfection depth at or beyond which the tube shall be removed from service or repaired and is equal to 44% of the nominal tube wall thickness.
Sleeves shall be removed from service upon detection of service-induced degradation of the sleeve material or any portion of the sleeve-to-tube weld.For tubes that have not been repaired (sleeved):
Deqradation detected below the bottom of the hot leq expansion transition or hot leq top of the tubesheet, whichever is hiqher, shall be removed from service or repaired on detection.
Degradation detected below the bottom of the cold lec expansion transition or cold leq top of the tubesheet, whichever is hicher, shall be removed from service or repaired on detection.
This Repair Limit is not applicable in the portion of the tubing within the hotleg tubesheet as follows: For tubes that have not been repaired: Greater than 10.6 inches below the bottom of the hot lec expansion transition or tog of the hot leg tubesheet, whichever is lower.For tubes that have been repaired:
Below the bottom of the pressure retaining portion of the parent tube in contact with the sleeve (the lower joint that is formed by hard-rollinq) or greater than 10.6 inches below the bottom of the hot lec expansion transition, whichever is lower.(continued)
SAN ONOFRE--UNIT 3 5.0-18 Amendment No.
Procedures, Programs, and Manuals 5.5 5.5 Procedures, Programs, and Manuals (continued) 5.5.2.11 Steam Generator (SG) Tube Surveillance Program (continued) g) Preservice Inspection
-An inspection of the full length of each tube in each SG performed by eddy-current techniques prior to service to establish a baseline condition of the tubing. This inspection shall be performed prior to initial MODE 1 operating using the equipment and techniques expected to be used during subsequent inservice inspections.
These examinations may be performed prior to steam generator installation.
Similarly, for tube repair by sleeving, an inspection of the full length of the pressure boundary portion of the sleeved area shall be performed by eddy current techniques prior to service. This includes pressure retaining portions of the parent tube in contact with the sleeve, the sleeve-to-tube weld, and the pressure retaining portion of the sleeve.h) Tube Inspection
-An inspection of the SC tuIbe from 10.4 inches below the bottom of the hot-1-eU expans-i~
transition or hot leg top of the tubesheet, whichever is lower, completely argoft+the U bend to 10.7 inehes below thC bdttomC oF the cold leg expansion transition or cold leg top -f the tubesheet.
whichever is lower.For a tube with no portion of a sleeve extendinq below (a) 10.6 inches from the bottom of the hot leg expansion transition or the top of the tubesheet (whichever is lower) or (b) 11.0 inches from the bottom of the cold leq expansion transition or the top of the tubesheet (whichever is lower), a tube inspection means an inspection of the steam generator tube from 10.6 inches below the bottom of the hot leq expansion transition or top of the tubesheet (whichever is lower)completely around the U-bend to 11.0 inches below the bottom of the cold leg expansion transition or top of the tubesheet (whichever is lower).(continued)
SAN ONOFRE--UNIT 3 5.0-18a Amendment No.
Procedures, Programs, and Manuals 5.5 5.5 Procedures, Programs, and Manuals (continued) 5.5.2.11 Steam Generator (SG) Tube Surveillance Program (continued)
For all other tubes, a tube inspection means an inspection from the bottom of the sleeve completely around the U-bend to either (a) 10.6 inches below the bottom of the hot leq expansion transition or the top of the tubesheet (whichever is lower) or (b) 11.0 inches below the bottori of the cold leq expansion transition or the top of the tubesheet (whichever is lower), as appropriate.
i) Unserviceable
-The condition of a tube if it leaks or contains a defect large enough to affect its structural integrity in the event of an Operational Basis Earthquake, a loss-of-coolant accident, or a steam line of feedwater line break accident as specified in Specification 5.5.2..11.e.(continued)
SAN ONOFRE--UNIT 3 5.0-18b Amendment No.
Attachment E (PCN-565 Supplement 1 Proposed Pages)SONGS Unit 2 Procedures, Programs, and Manuals 5.5 5.5 Procedures, Programs, and Manuals (continued) 5.5.2.11 Steam Generator (SG) Tube Surveillance Program (continued) e) Imperfection
-An exception to the dimensions, finish, or contour of a tube from that required by fabrication drawings or specifications.
Eddy-current testing indications below 20% of the nominal tube wall thickness, if detectable, may be considered as imperfections; f) Repair Limit -The imperfection depth at or beyond which the tube shall be removed from service or repaired and is equal to 44% of the nominal *ube wall thickness.
Sleeves shall be removed from service upon detection of service-induced degradation of the sleeve material or any portion of the sleeve-to-tube weld.For tubes that have not been repaired (sleeved):
Degradation detected below the bottom of the hot leg expansion transition or hot leg top of the tubesheet, whichever is higher, shall be removed from service or repaired on detection.
Degradation detected below the bottom of the cold leg expansion transition or cold leg top of the tubesheet, whichever is higher, shall be removed from service or repaired on detection.
This Repair Limit is not applicable in the portion of the tubing within the hotleg tubesheet as follows: For tubes that have not been repaired: Greater than 10.6 inches below the bot:om of the hot leg expansion transition or top of the hot leg tubesheet, whichever is lower.For tubes that have been repaired:
Below the bottom of the pressure retaining portion of the parent tube in contact with the sleeve (the lower joint that is formed by hard-rolling) or greater than 10.6 inches below the bottom of the hot leg expansion transition, whichever is lower.(continued)
SAN ONOFRE--UNIT 2 5.0-18 Amendment No.
Procedures, Programs, and Manuals 5.5 5.5 Procedures, Programs, and Manuals (continued) 5.5.2.11 Steam Generator g)(SG) Tube Surveillance Program (continued)
Preservice Inspection
-An inspection of the full length of each tube in each SG performed by eddy-current techniques prior to service to establish a baseline condition of the tubing. This inspection shall be performed prior to initial MODE 1 operating using the equipment and techniques expected to be used during subsequent inservice inspections.
These examinations may be performed prior to steam generator installation.
Similarly, for tube repair by sleeving, an inspection o- the full length of the pressure boundary portion of the sleeved area shall be performed by eddy current techniques prior to service. This includes pressure retaining portions of the parent tube in contact with the sleeve, the sleeve-to-tube weld, and the pressure retaining portion of the sleeve.h) Tube Inspection
-For a tube with no portion of a sleeve extending below (a) 10.6 inches from the bottom of the hot leg expansion transition or the top of the tubesheet (whichever is lower) or (b)11.0 inches from the bottom of the cold leg expansion transition or the top of the tubesheet (whichever is lower), a tube inspection means an inspection of the steam generator tube from :10.6 inches below the bottom of the hot leg expansion transition or top of the tubesheet (whichever is lower) completely around the U-bend to 11.0 -inches below the bottom of the cold leg expansion transition or top of the tubesheet (whichever is lower).For all other tubes, a tube inspection means an inspection from the bottom of the sleeve completely around the U-bend to either (a) 10.6 inches below the bottom of the hot leg expansion transition or the top of the tubesheet (whichever is lower) or (b) 11.0 inches below the bottom of the cold leg expansion transition or the top of the tubesheet (whichever is lower), as appropriate.
i) Unserviceable
-The condition of a tube if it leaks or contains a defect large enough to affect its structural integrity in the event of an Operational Basis Earthquake, a loss-of-coolant accident, or a steam line of feedwater line break accident as specified in Specification 5.5.2.11.e.(continued)
SAN ONOFRE--UNIT 2 5.0-18a Amendment No.
Attachment F (PCN-565 Supplement 1 Proposed Pages)SONGS Unit 3 Procedures, Programs, and Manuals 5.5 5.5 Procedures, Programs, and Manuals (continued) 5.5.2.11 Steam Generator (SG) Tube Surveillance Program (continued) e) Imperfection
-An exception to the dimensions, finish, or contour of a tube from that required by fabrication drawings or specifications.
Eddy-current testing indications below 20% of the nominal tube wall thickness, if detectable, nay be considered as imperfections; f) Repair Limit -The imperfection depth at or beyond which the tube shall be removed from service or repaired and is equal to 44% of the nominal l:ube wall thickness.
Sleeves shall be removed from service upon detection of service-induced degradation of the sleeve material or any portion of the sleeve-to-tube weld.For tubes that have not been repaired (sleeved):
Degradation detected below the bottom of the hot leg expansion transition or hot leg top of the tubesheet, whichever is higher, shall be removed from service or repaired on detection.
Degradation detected below the bottom of the cold leg expansion transition or cold leg top of the tubesheet, whichever is higher, shall be removed from service or repaired on detection.
This Repair Limit is not applicable in the portion of the tubing within the hotleg tubesheet as follows: For tubes that have not been repaired: Greater than 10.6 inches below the bottom of the hot leg expansion transition or top of the hot leg tubesheet, whichever is lower.For tubes that have been repaired:
Below the bottom of the pressure retaining portion of the parent tube in contact with the sleeve (the lower joint that is formed by hard-rolling) or greater than 10.6 inches below the bottom of the hot leg expansion transition, whichever is lower.(continued)
SAN ONOFRE--UNIT 3 5.0-18 Amendment No.
Procedures, Programs, and Manuals 5.5 5.5 Procedures, Programs, and Manuals (continued) 5.5.2.11 Steam Generator (SG) Tube Surveillance Program (continued) g) Preservice Inspection
-An inspection of the full length of each tube in each SG performed by eddy-current techniques prior to service to establish a baseline condition of the tubing. This inspection shall be performed prior to initial MODE 1 operating using the equipment and techniques expected to be used during subsequent inservice inspections.
These examinations may be performed prior to steam generator installation.
Similarly, for tube repair by sleeving, an inspection of the full length of the pressure boundary portion of the sleeved area shall be performed by eddy current techniques prior to service. This includes pressure retaining portions of the parent tube in contact with the sleeve, the sleeve-1:o-tube weld, and the pressure retaining portion of the sleeve.h) Tube Inspection
-For a tube with no portion of a sleeve extending below (a) 10.6 inches from the bottom of the hot leg expansion transition or the top of the tubesheet (whichever is lower) or (b)11.0 inches from the bottom of the cold leg expansion transition or the top of the tubesheet (whichever is lower), a tube inspection means an inspection of the steam generator tube from :10.6 inches below the bottom of the hot leg expansion transition or top of the tubesheet (whichever is lower) completely around the U-bend to 11.0 inches below the bottom of the cold leg expansion transition or top of the tubesheet (whichever is lower).For all other tubes, a tube inspection means an inspection from the bottom of the sleeve completely around the U-bend to either (a) 10.6 inches below the bottom of the hot leg expansion transition or the top of the tubesheet (whichever is lower) or (b) 11.0 inches below the bottori of the cold leg expansion transition or the top of the tubesheet (whichever is lower), as appropriate.
i) Unserviceable
-The condition of a tube if it leaks or contains a defect large enough to affect its structural integrity in the event of an Operational Basis Earthquake, a loss-of-coolant accident, or a steam line of feedwater line break accident as specified in Specification 5.5.2..11.e.(continued)
SAN ONOFRE--UNIT 3 5.0-18a Amendment No.