ML101440381

Third Ten-Year Inservice Inspection (ISI) Interval Relief Request ISI-3-31, Flaw Evaluation of High-Energy Schedule 10S Emergency Core Cooling System Piping

ML101440381
Person / Time
Site:	San Onofre
Issue date:	05/19/2010
From:	St-Onge R Southern California Edison Co
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
ISI-3-31
Download: ML101440381 (122)

Text

SOUTHERN CALIFORNIA Richard I. St. Onge Fý EDSON

°Director Nuclear Regulatory Affairs An EDISON INTERNATIONAL Company May 19, 2010 1 0CFR50.55a ATTN: Document Control Desk U. S. Nuclear Regulatory Commission Washington, DC 20555-0001

Subject:

Docket Nos. 50-361 and 50-362 Third Ten-Year Inservice Inspection (ISI) Interval Relief Request ISI-3-31, Flaw Evaluation of High-Energy Schedule 10S Emergency Core Cooling System Piping San Onofre Nuclear Generating Station, Units 2 and 3

Dear Sir or Madam,

Pursuant to 10 CFR 50.55a(a)(3)(ii), Southern California Edison (SCE) requests NRC approval of the following request for the San Onofre Nuclear Generating Station (SONGS) Third Ten-Year Interval Inservice Inspection Program: Use of alternative evaluation criteria for temporary acceptance of flaws in High-Energy Class 2 and 3 Emergency Core Cooling System (ECCS) Schedule 1OS piping.

The proposed alternative will be identical to the requirements of the American Society of Mechanical Engineers (ASME) Section Xl requirements and NRC-approved Code Case N-513-2, "Evaluation Criteria for Temporary Acceptance of Flaws in Moderate Energy Class-2 or 3 Piping ASME Section Xl, Division 1," with the exception of the temperature limit of 2000F. In addition, in one case where the operating temperature exceeds 2000F, an exception will also be taken from the limitation to piping of 4 inches or greater nominal pipe size.

SCE has discovered unacceptable flaws in Schedule 10S piping in the ECCS system in both SONGS Units 2 and 3. For the flaws discovered to date, SCE has been able to evaluate flaws in accordance with ASME Code Case N-513-2 or been able to repair the flaws to ASME Code standards during the recently completed Unit 2 Cycle 16 refueling outage.

This proposed alternative is requested as a contingency in case flaws are found in SONGS Units 2 and 3 Schedule 1OS ECCS piping in areas where the piping maximum operating temperature limit in Code Case N-513-2 is exceeded or the nominal pipe size is less than 4 inches.

SCE requests expedited review and approval of the Enclosed Relief Request ISI-3-31 in order to avoid a potential unnecessary unit shutdown if a flaw were to P.O. Box 128 KLK San Clemente, CA 92674

Document Control Desk May 19, 2010 be discovered in Schedule 10S ECCS piping that could not be evaluated under Code Case N-513-2.

This letter and the enclosure contain no new commitments.

Should you have any questions, please contact Ms. Linda T. Conklin at (949) 368-9443.

Sincerely,

Enclosure:

as stated cc:

E. E. Collins, Regional Administrator, NRC Region IV R. Hall, NRC Project Manager, San Onofre Units 2 and 3 G. G. Warnick, NRC Senior Resident Inspector, San Onofre Units 2 and 3

Enclosure 10 CFR 50.55a Request ISI-3-31 Proposed Alternative in Accordance with 10 CFR 50.55a(a)(3)(ii)

Hardship Without Compensating Increase in Level of Quality or Safety

10 CFR 50.55a Request ISI-3-31 Proposed Alternative in Accordance with 10 CFR 50.55a(a)(3)(ii)

Hardship Without Compensating Increase in Level of Quality or Safety

1. ASME Code Component(s) Affected SONGS Unit 2:

Emergency Core Cooling System Class-2 and 3 Schedule 10S Piping and Welds associated with the High Pressure Safety Injection (HPSI) Lines, Low Pressure Safety Injection (LPSI) Lines, and Containment Spray Lines - see Table 1 SONGS Unit 3:

Emergency Core Cooling System Class-2 and 3 Schedule 10S Piping and Welds associated with the High Pressure Safety Injection (HPSI) Lines, Low Pressure Safety Injection (LPSI) Lines, and Containment Spray Lines - see Table 1 All piping and welds in each unit that are described below in Table 1 are American Society of Mechanical Engineers (ASME) Boiler and Pressure Vessel Code,Section XI, Class 2, except Rows 12 through 15, Lines 1204ML131, 1204ML1 51, 1204ML180, and 1204ML080 which are Class 3.

2. Applicable Code Edition and Addenda

Code of Record for Current (Third) Ten-Year In-service Inspection (ISI) Interval, ASME Section XI, 1995 Edition, through the 1996 Addenda

3. Applicable Code Requirement

For Class 2:1995 Edition through the 1996 Addenda of the ASME Code Section XI, Subparagraph IWC-3122.2 for disposition of flaws found through Volumetric and Surface Examinations and Subparagraph IWC-3132.2 for disposition of flaws found through visual inspections For Class 3: 1995 Edition through the 1996 Addenda of the ASME Code Section Xl, Article IWD-3000.

Note: Article IWD-3000 refers to the rules of IWB-3000. Paragraph IWB-3133 and Subparagraph IWB-3142.3 provide rules for Class 3 components analogous to those in Subparagraphs IWC 3122.2 and IWC-3132.2 for Class 2 components 1 of 10

10 CFR 50.55a Request ISI-3-31 Proposed Alternative in Accordance with 10 CFR 50.55a(a)(3)(ii)

Hardship Without Compensating Increase in Level of Quality or Safety Table I ECCS SCHEDULE 10S PIPING FOR WHICH RELIEF IS REQUESTED Units 2 and 3 Pipe Maximum Operating Conditions Line Number Section Description Size Pressure (NPS)

Temperature (OF)

(psi) 10 1204ML108/003/

Between Valves MU001, MU003, MU007, 16 225 110 007/009 MU010, and MU062 1

2 1

24 2

1204ML007 Between Valve MU007 & High Pressure 8

225 110 Safety Injection Pump P017 3

1204ML009 Between Valves MU010, MU01 1 & High 8

225 110 Pressure Safety Injection Pump P018 4

1204ML003 Between Valves MU003 & HV9303 24 225 110 5

1204ML003 Between Valve HV9303 & Containment 24 225 110 Emergency Sump Between Valve MU062 & Containment 14*

Spray Pump P012 16 10 7

1204ML109/004/

Between Valves MU002, MU004, MU009, 16 225 110 031/008/010 MU011, MU005, & MU199 24 8

1204ML008 Between Valve MU009 & High Pressure 8

225 110 Safety Injection Pump P019 9

1204ML004 Between Valves MU004 and HV9302 24 225 110 10 1204ML004 Between Valve HV9302 & Containment 24 225 110 Emergency Sump Between Valve MU005 & Containment 14*

11 1204M L004 225 110 Spray Pump P013 16 12 1204ML131 Between Valve HV9347 & mini flow tie 4

275 50 13 1204ML151 Between Valve HV9306 & mini flow tie 4

275 50 14 1204ML180 Between Valve PSV9308 & mini flow tie 2.5 275 50 15 1204ML080 Between Valves MU060 & MU068 6

275 50

• The 14" sections of these two lines are not Schedule 10S pipe and are excluded from the scope of this relief request.

Note: The scope of the attached calculation M-DSC-445 is broader than that of this relief request. Thus the item numbering of calculation Table 1-1 is different than that listed above because the calculation Table includes additional items.

The maximum operating temperatures listed above were developed during initial plant design and construction. These are not design temperatures and they 2 of 10

10 CFR 50.55a Request ISI-3-31 Proposed Alternative in Accordance with 10 CFR 50.55a(a)(3)(ii)

Hardship Without Compensating Increase in Level of Quality or Safety contain margin above the maximum operating temperature determined in the analysis of record. See Section 5, "Proposed Alternative and Basis for Use," for more information.

4. Reason for Request

The applicable Code Requirements state that components with relevant conditions must be corrected by repair/replacement activities. Code Case N-513-2, "Evaluation Criteria for Temporary Acceptance of Flaws in Moderate Energy Class 2 or 3 Piping, Section Xl, Division 1," has been unconditionally accepted by the NRC for use in evaluating flaws in Regulatory Guide 1.147, Revision 15. Code Case N-513-2 applies to Class 2 or 3 piping whose maximum operating temperature does not exceed 200°F and whose maximum operating pressure does not exceed 275 psig.

SCE has discovered flaws in Schedule 10S piping in ECCS systems in both SONGS Units 2 and 3. For the flaws discovered to date, SCE has been able to evaluate the flaws in accordance with ASME Code Case N-513-2 or was able to repair the flaws to ASME Code standards during the recently completed Unit 2 Cycle 16 refueling outage. All of the affected piping runs meet the definition of moderate energy for maximum operating pressure, 275 psig. However, there are sections of the Schedule 10S ECCS piping where the maximum operating temperature exceeds 2000 F, which exceeds the maximum temperature limit specified in Code Case N-513-2. If SCE were to find flaws in these sections of Schedule 1OS piping, SCE would not be able to apply Code Case N-513-2 to evaluate flaws.

The ECCS subsystems involved are the High Pressure Safety Injection (HPSI),

Low Pressure Safety Injection (LPSI), and Containment Spray. These systems are described in Updated Final Safety Analysis Report (UFSAR) Sections 6.3, 5.4, 7.3, and 7.4 (References 1 through 4) and function to mitigate the effects of Design Basis Accidents, including a Loss of Coolant Accident. Inability to evaluate and accept flaws in these subsystems would result in inoperability of the subsystems such that Technical Specification Required Actions would require initiation of a Unit shutdown in as little as one hour (depending on location of the flaw - in some cases, the applicable TS Required Action would allow 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> or 7 days prior to initiation of a plant shutdown).

SCE proposes that the requirements of ASME Code Case N-513-2 may be applied to potential flaws that may be found in Schedule 1OS ECCS piping in which the maximum operating temperature exceeds 2000 F. By doing so, SCE would likely be able to demonstrate the structural integrity of piping where flaws 3 of 10

10 CFR 50.55a Request ISI-3-31 Proposed Alternative in Accordance with 10 CFR 50.55a(a)(3)(ii)

Hardship Without Compensating Increase in Level of Quality or Safety are found. Based on the ability to demonstrate structural integrity, a Unit shutdown to repair flaws would result in a hardship without a compensating increase in the level of quality and safety.

ASME Code, Section Xl, Article IWD-3000, which applies to ASME Class 3 piping, states that the rules of IWB-3000 may be used because this Article was still in the course of preparation in the Code of Record. This includes IWB-3641(a) which limits the flaw evaluation techniques to piping of NPS 4 inches or greater. In the Emergency Core Cooling System (ECCS) Miniflow line there is a section of pipe that has an NPS of 2.5 inches (see item 14 of Table 1).

SCE proposes that the requirements of ASME Code Case N-513-2 may be conservatively applied to potential flaws that may be found in Schedule 1OS ECCS piping with an NPS of 2.5 inches. By doing so, SCE would likely be able to demonstrate the structural integrity of piping where flaws are found. Based on the ability to demonstrate structural integrity, a Unit shutdown to repair flaws would result in a hardship without a compensating increase in the level of quality and safety.

5. Proposed Alternative and Basis for Use

SCE proposes to apply the evaluation methodology, acceptance criteria, and required actions of Code Case N-513-2 to evaluate potential flaws in Schedule 10S ECCS piping to establish pipe integrity, with the exception that the maximum operating temperature for the components in question will be 2751F instead of 2000F, and that in one case the NPS will be 2.5 inches instead of 4 inches or greater.

The allowable through-wall (TW) circumferential flaw lengths for each of the affected piping runs were calculated following the procedures of Code Case N-513-2 and the pipe flaw procedures of ASME Section Xl Appendix C for austenitic stainless steel piping (See Calculation M-DSC-445, provided as of this enclosure). The analytical evaluation methods of Article C-6320 for ductile fracture using elastic-plastic fracture mechanics (EPFM) criteria were used in the determination of allowable TW flaw lengths under upset and faulted loading conditions. The EPFM method is appropriate to account for the possibility of having lower toughness weldments in the austenitic pipe. These welds are classified as flux welds in Appendix C of ASME Section Xl, and incorporate either submerged arc weld (SAW) or shielded metal arc weld (SMAW) process. For flaws not associated with butt welds made by SAW or SMAW, such as tungsten inert gas (TIG) welding or wrought pipe, the analytical evaluation methods of Article C-5320 for limit load (LL) failure were used in the determination of allowable TW flaw lengths.

4 of 10

10 CFR 50.55a Request ISI-3-31 Proposed Alternative in Accordance with 10 CFR 50.55a(a)(3)(ii)

Hardship Without Compensating Increase in Level of Quality or Safety Section IWB-3641 (a) limits application of flaw evaluation criteria to austenitic pipe NPS 4 inches or greater. Line 1204ML180 has NPS of 2.5 inches. The flaw evaluation for this line was conservatively performed based on a load multiplier (Z-factor) calculated for a 4-inch NPS pipe. The Z-factor increases with the NPS.

Therefore, applying the Z-factor calculated for a 4-inch pipe to a 2.5 inch pipe is conservative.

Specific calculations for allowable TW length, *aIow, are based on maximum enveloping stresses obtained from piping stress reviews. For each of the lines listed, the allowable TW lengths were determined and are presented below in Table 2 (circumferential flaws) and Table 3 (axial flaws).

5 of 10

10 CFR 50.55a Request ISI-3-31 Proposed Alternative in Accordance with 10 CFR 50.55a(a)(3)(ii)

Hardship Without Compensating Increase in Level of Quality or Safety Table 2 Summary of Allowable Circumferential Flaw Length Results in Schedule 10S ECCS Piping Pipe Allowable Flaw Length Line Number Section Description Size

?.Io (inch)

(NPS)

SAW and TIG and SMAW Wrought 10 15.19 18.70 1204ML108/003/

Between Valves MU001, MU003, 16 15.9 22.95 007/009 MU007, MU010 and MU062 16 15.97 22.95 24 24.38 36.47 2

1204ML007 Between Valves MU007 & High 12.41 15.53 Pressure Safety Injection Pump P017 Between Valves MU010, MU011 &

3 1204ML009 High Pressure Safety Injection Pump 8

2.94 7.12 P018 4

1204ML003 Between Valves MU003 & HV9303 24 11.17 34.79 Between Valves HV9303 &

5 1204ML003 Cotanen Emeren SVmp 24 11.17 34.79 Containment Emergency Sump 6

1204ML003 Between Valve MU062 &

14*

n/a n/a Containment Spray Pump P012 16 15.97 22.95 10 13.03 16.65 7

1204ML109/004/

Between Valves MU002, MU004, 16 19.20 25.53 031/008/010 MU009, MU011, MU005, & MU199 24 17.22 33.01 8

1204ML008 Between Valve MU009 & High 8

2.94 7.12 Pressure Safety Injection Pump P019 9

1204ML004 Between Valves MU004 and HV9302 24 6.87 21.06 10 1204ML004 Between Valve HV9302 &

24 6.87 21.06 Containment Emergency Sump 11 1204ML004 Between Valve MU005 &

14*

n/a n/a Containment Spray Pump P013 16 19.20 25.53 12 1204ML131 Between Valve HV9347 & mini flow 5.88 7.50 tie 13 1204ML151 Between Valve HV9306 & mini flow 4

3.68 6.14 tie 14 1204ML180 Between Valve PSV9308 & mini flow 2.5 1.65 2.98 tie 15 1204ML080 Between Valves MU060 & MU068 6

2.60 8.49

• The 14" sections of these two lines are not Schedule 10S pipe and are excluded from the scope of this relief request.

Note that the scope of the attached calculation is broader than that of this relief request. Thus the item numbering of calculation Table 2-1 is different than that listed above because the calculation Table includes additional items.

6 of 10

10 CFR 50.55a Request ISI-3-31 Proposed Alternative in Accordance with 10 CFR 50.55a(a)(3)(ii)

Hardship Without Compensating Increase in Level of Quality or Safety Table 3 Summary of Allowable Axial Through-Wall Lengths (Po = 110 psi, T, = 2750F)

Pipe Size Outside Wall Allowable Flaw Length (NPieSize Diameter Thickness Allow (inch)

(NPS)

(inch)

(inch)

• aItow (inch) 2.5 2.875 0.120 9.16 3

3.5 0.120 8.32 4

4.5 0.120 7.35 6

6.625 0.134 7.14 8

8.625 0.148 7.25 10 10.75 0.165 7.62 14 14.00 0.188 8.08 16 16.00 0.188 7.51 24 24.00 0.250 9.32 Basis for Acceptability of Proposed Alternative The maximum operating temperatures for the relevant piping lines range from 225 0F to 2750F as listed in design documentation. The analysis of record shows that following a Large Break Loss of Coolant Accident (LBLOCA) or Main Steam Line Break, the ECCS piping initially draws water from the Refueling Water Storage Tank (RWST). The maximum RWST temperature is limited to 1001F per Technical Specification SR 3.5.4.1. Prior to depleting the RWST inventory, a Recirculation Actuation Signal (RAS) is generated to initiate ECCS flow from the Containment Emergency Sump (CES) and terminate ECCS flow from the RWST.

The only time that this piping experiences temperatures above 200°F is during post-RAS operation during LBLOCA conditions. The LBLOCA analyses show that the maximum post-RAS temperature in the CES is approximately 215°F with Replacement Steam Generators (RSGs) and approximately 214°F with Original Steam Generators (OSGs). The CES experiences water temperatures above 200°F for approximately 14 hours1.62037e-4 days <br />0.00389 hours <br />2.314815e-5 weeks <br />5.327e-6 months <br /> with RSGs and approximately 11 hours1.273148e-4 days <br />0.00306 hours <br />1.818783e-5 weeks <br />4.1855e-6 months <br /> with OSGs. Exposure to CES water provides the basis for the operating temperatures greater than 200OF for the piping in question.

The technical basis for the N-513-2 Code Case is that flaws, once identified, are able to be characterized, the flaw mechanism then understood, and the condition managed during a plant's operating cycle, until repairs are 7 of 10

10 CFR 50.55a Request ISI-3-31 Proposed Alternative in Accordance with 10 CFR 50.55a(a)(3)(ii)

Hardship Without Compensating Increase in Level of Quality or Safety implemented during the next scheduled outage. SONGS experience to date has been that leaks in Schedule 10S lines have been caused by small flaws.

The flaws that have been discovered to date have been as the result of inside diameter and outside diameter stress corrosion cracking or cyclic fatigue failure. These flaws have been smaller than the allowable flaw size evaluated in the technical flaw evaluations for the respective lines, and have not presented a challenge to structural integrity.

The identified piping experiences maximum operating temperatures above 200OF for a very short period of time and only under certain unlikely conditions, and the flaws found to date have been much smaller than the calculated allowable flaw sizes. On that basis, SCE believes that requiring a plant shutdown to effect a Code repair of the affected piping, when compared to the application of Code Case N-513-2, does not provide a compensating increase in the level of quality and safety.

By direct reference, Code Case N-513-2 invokes the analytical evaluation methods of Appendix C for the analysis of planar circumferential flaws. The limit load equations in Appendix C are generally applicable to all pipe sizes.

However, the equations for the Z-factors in Appendix C were developed for piping where NPS is greater than or equal to 4 inches, and caution must be used when extrapolating Z-factors to smaller sizes. The Z-factor is a multiplier on applied pipe stress used in the allowable flaw evaluation to account for the possibility of low ductility weldments. The larger the pipe size, the higher the Z-factor becomes; and hence, a lower allowable flaw length will result. The attached calculation applied a Z-factor determined for a 4 inch NPS pipe in the case where the actual NPS was 2.5 inches. This analysis assumption is conservatism in determining the allowable flaw length for the 2.5 inch NPS ECCS piping. Thus, the restriction against using Appendix C methods as referenced by Code Case N-513-2 for flaw evaluation in piping less than 4 inch NPS does not provide a compensating increase in the level of quality and safety under the conditions by which the calculations for allowable flaw length were performed.

Application of the Proposed Alternative Should SCE discover unacceptable flaws in the sections of Schedule 10S ECCS piping that has maximum operating temperatures greater than 2001F, the application of this proposed alternative will be as follows:

1. Immediate Operability Determination based upon visual characterization of the indication and operating experience with the degradation 8 of 10

10 CFR 50.55a Request ISI-3-31 Proposed Alternative in Accordance with 10 CFR 50.55a(a)(3)(ii)

Hardship Without Compensating Increase in Level of Quality or Safety mechanisms of this piping (stress corrosion cracking or cyclic fatigue failure).

2. Prompt Operability Determination based on Non-Destructive Examination of flaws and comparison of results to the allowable flaw sizes as described in calculation M-DSC-445.

3. Implementation of follow-up actions as described in Code Case N-513-2.

4. Repair of flaws in accordance with the schedule requirements of Code Case N-513-2.

Long-term corrective action for the degradation of the Schedule 1OS ECCS piping is still under development. Possible actions include replacement of Schedule 1OS piping, or weld overlay of affected welds or other actions yet to be identified. While specific actions have not yet been determined, it is SCE's intention to actively address the degradation of Schedule 1OS piping rather than continuing to evaluate and repair individual flaws on an as-found basis.

6. Duration of Proposed Alternative

The proposed alternative will apply for the duration of the Third 10-year Inspection Interval, which began on August 18, 2003 and will end on August 17, 2013 for both Units 2 and 3.

The duration that SCE would continue to operate Unit 2 or Unit 3 with flaws evaluated and accepted in accordance with this proposed alternative would be in accordance with the requirements of Code Case N-513-2.

7. Precedents

Letter from G. R. Peterson (McGuire Nuclear Station), to Document Control Desk (NRC), dated July 24, 2007 (ADAMS Accession Number ML072140851);

Subject:

Duke Power Company LLC d/b/a Duke Energy Carolinas, LLC (Duke), McGuire Nuclear Station, Unit 1, Docket No. 50-369, Relief Request 07-MN-001, Relief Request from Immediate ASME Code Flaw Repair of Charging Pump Discharge Line Valve 1 NV-240.

" Letter from Melanie C. Wong (NRC), to Bruce Hamilton (McGuire Nuclear Station) dated March 26, 2008 (ADAMS Accession Number ML080580577);

Subject:

McGuire Nuclear Station, Unit 1, Request for Relief 06-MN-001, for Third 10-Year Interval Inservice Inspection Program Plan regarding 9 of 10

10 CFR 50.55a Request ISI-3-31 Proposed Alternative in Accordance with 10 CFR 50.55a(a)(3)(ii)

Hardship Without Compensating Increase in Level of Quality or Safety repair of Chemical Volume and Control System Valve 1 NV-240 (TAC No.

MD6274)

8. References

1. UFSAR Section 6.3, Emergency Core Cooling System

2. UFSAR Section 5.4, Component and Subsystem Design

3. UFSAR Section 7.3, Engineered Safety Features Systems

4. UFSAR Section 7.4, Systems Required for Safe Shutdown 10 of 10 Calculation M-DSC-445 Note that the scope of Calculation is broader than that of relief request ISI-3-31.

Thus the item numbering of affected lines in the Calculation Tables is different than the numbering in the Relief Request Tables because the Calculation Tables include additional items.

CALCULATION TITLE PAGE ECN NO.1 PRELIM. CCN NO.,

SPAGE OF Calc. No. M-DSC-445 ECP No. & Rev.

N/A Subject FLAW EVALUATION OF ECCS SCHEDULE 10S PIPING Sheet I of 108 System Number/Primary Station System Designator 1204 / BHA & 1219 / BHB SONGS Unit 2 & 3 Q-Class If Tech. Spec.JLCS Affecting? i-NO [] YES, Section No.

Equipment Tag No. SEE BELOW Site Programs/Procedure Impact? ED NO -] YES, AR No.

10CFR50.59f72.48 REVIEW CONTROLLED COMPUTER PROGRAM / DATABASE' IS THIS CALCULATION REVISION PROGRAM / DATABASE NAME(S)

VERSION / RELEASE NO.(S)

BEING ISSUED SOLELY TO El PROGRAM INCORPORATE CCNs/ECNs?

(3 ALSO, LISTED BELOW 9 NO OYES 0 DATABASE N/A N/A AR No. SEE BELOW*

ACCORDING TO S0123-XXIV-5.1 RECORDS OF ISSUES REV.

TOTAL PREPARED BY:

APPROVED BY:

DISC.

DESCRIPTION SHTS.

(Print name/sign/date)

(Signature/date)

LAST SHT.

Initial PQS Block - Requires PQS T3EN64 Initial PQS Block - Requires PQS T3EN64 0

INITIAL ISSUE 108 N M./ tEL-AKIY,SE.YFL R/1*1A0 S VR. BY:i..

08 IRE DAVID QRTIZ

.POS VER. BY Other ORIG.

PQS VER. BY: ___

FLS PQS VER. BY:

IRE PQS VER. BY:

D-- Other ORIG.

PQS VER. BY: __

FLS PQS VER. BY:

IRE PQS VER. BY:

Other ORIG.

PQS VER. BY:

FLS PQS VER. BY:

IRE PQS VER. BY:

Other Space for RPE Stamp, identify use of an alternate calc., and notes as applicable.

• THIS CALCULATION DOES NOT SUPPORT ANY CHANGE / MODIFICATION TO THE PLANT. NO 10CFR50.59 REVIEW IS REQUIRED.

Equipment tan numbers:

LINES 1204ML001, 002, 003, 004, 007, 008, 009, 010, 031, 080, 108, 131, 151 and 180 LINES 1219ML057, 066, 068, 072, 073 and 107 POOR QUALITY DOCUMENT BEST AVAILABLE COPY I

/DOCUMENT ORIGINATOR --

DATE This calc. was prepared for the identified ECP. ECP completion and turnover acceptance to be verified by receipt of ECP Turnover/Ciosure form directing conversion. Upon receipt, this calc. represents the as-built condition. ECP Turnover/Closure form date by SCE26-121-1 REV. 9 12/05 [

REFERENCE:

S0123-XXIV-7.15]

CALCULATION CROSS-INDEX Calculation No.

M-DSC-445 INPUTS OUTPUTS CaIc. rev.

Does the Identify output interface number and These interfacing calculations and/or Results and conclusion of the output interface calc/document responsible documents provide input to the subject subject calculation are used in calc/document FLS initials calculation, and if revised may require these interfacing calculations require CCN, ECP, TCN/Rev., or and date revision of the subject calculation.

and/or documents.

Change?

tracking number.

Cale/Document No.

Rev. No.

Cale/Document No.

Rev. No.

YES NO 0

Calculation M-1204-003-02A, 8

Suction Side of Safety Injection Pumps Calculation M-1204-003-03A, 5

Suction Side of Safety Injection Pumps Calculation M-1204-003-AA, 7

,Penetration 55 Containment Emergency Sump Recirculation Calculation M-1204-008-02A, 0

HPSI Pump - Temporary Piping for, ISI Testing Calculation M-1204-002-02A, 9

Safety Injection Lines from P-13, P-16, P-18 and P-19 to T-6 Calculation M-1204-002-03A, 5

Suction Side of Safety Injection System SCE 26-424 REV. 6 12105 [

REFERENCE:

S0123-XXIV-7.15]

CALCULATION CROSS-INDEX ECN NO./

PRELIM. CCN NO.

PAGE OF Calculation No.

M-DSC-445 Sheet 3ý of (V& -

I CCN CONVERSION:

CON NO. CCN--

I INPUTS OUTPUTS Calc. rev.

Does the Identify output interface number and These interfacing calculations and/or Results and conclusion of the output interface calc/document responsible documents provide input to the subject subject calculation are used in calc/document FLS initials calculation, and if revised may require these interfacing calculations require CON, ECP, TCN/Rev., or and date revision of the subject calculation.

and/or documents.

Change?

tracking number.

N. N*ev.

N-----.

CalcDocument No.-

[Rev. No.

YES I NO 0

Calculation M-1204-004-AA, 9

Penetration 54 Containment Emergency Sump Recirculation Calculation M-1219-072-AA, 3

Refueling Water Storage Tank T-006 3" Drain 1219-072-3"-C-LL0 Calculation M-1219-068-AA, 3

Refueling Water Storage Tank Crosstie Tank T-005 and T-006 Calculation M-1204-151-AA, 8

Mini-flow from & to HPSI LPSI Pumps in SEB Calculation M-1204-080-AA, 5

Line 079 to Line 107 and to Refueling Water Storage Tank T-005 Calculation M-1219-057-02A, 6

Line 057 from Refueling Water Storage Tank T-006 P02449-2453.

SCE26-424 REV. 6 12/05 [

REFERENCE:

S0123-XXIV-7.15]

CALCULATION CROSS-INDEX Calculation No.

M-DSC-445 INPUTS OUTPUTS Calc. rev.

Does the Identify output Interface number and These Interfacing calculations and/or Results and conclusion of the

-output interface calc/document responsible documents provide input to the subject subject calculation are used in calc/document FLS initials calculation, and if revised may require these Interfacing calculations require CON, ECP. TCN/Rev., or and date revision of the subject calculation.

and/or documents.

Change?

tracking number.

-1 o- -- --. - -_ -----------

CalclDocument No.

{Rev. No.

Cale/Document No.

Rev. No.

YES I NO 0

Calculation M-1219-057-AA, 4

Refueling Water Tank to Charging Pumps Line NO 1219-057 I ID Calculation M-1219-057-04A, 5

Refuel Water Tank to Charging Pumps - Unit 2 Calculation M-1208-007-02A, 7

AUX BLDG Acid Pump (Suction)

Calculation M-1218-037-02A, 2

Boric Acid Make-up Pump Disch to Vol Control Tank Charging Pump+Suction Header -Unit 2 Calculation M-1219-057-03A, 7

Refueling Water Tank to Charging Pumps Calculation M-1208-007-03A, 5

Volume Control Tank T077 to Charging Pump Suction SCE 26-424 REV. 6 12105

IREFERENCE:

S0123-XXIV-7.15]

CALCULATION CROSS-INDEX Calculation No.

M-DSC-445 INPUTS OUTPUTS CaIc. rev.

Does the Identify output interface number and These interfacing calculations andlor Results and conclusion of the output interface calc/document responsible documents provide input to the subject subject calculation are used in calcldocument FLS Initials calculation, and if revised may require these interfacing calculations require CCN, ECP, TCN/Rev., or and date revision of the subject calculation.

and/or documents.

Change?

tracking number.

CalclDocument No.

Rev. No.

CalclDocument No.

Rev. No.

YES I NO 0

Calculation M-1218-037-03A, 3

S Boric Acid Make-up Pump Disch to Vol Control Tank Charging (1

Pump+Suction Header Calculation M-1219-066-AA, 3

P-011 + Refueling Water Storage Tank T-006 to Spent Fuel Pool Make Pump P&ID 40112A, 35 Safety Injection System - System 7

No. 1204 P&ID 40112AS03, 38 Safety Injection System - System No. 1204 SCE26-424 REV. 6 12105

IREFERENCE:

S0123-XXIV-7.15]

CALCULATION CROSS-INDEX Calculation No.

M-DSC-445 INPUTS OUTPUTS Calc. rev.

Does the Identify output interface number and These interfacing calculations and/or Results and conclusion of the output interface calc/document responsible documents provide input to the subject subject.calculation are used In calc/document FLS initials calculation, and if revised may require these interfacing calculations require CCN, ECP, TCNIRev., or and date revision of the subject calculation.

and/or documents.

Change?

tracking number.

CalclDocument No.

Rev. No.

CalclDocument No.

f Rev. No.

YES I NO 0

P&ID 40122B, 26 Fuel Pool Cooling System - System.

No. 1219

(")I P&ID 40122BS03, 21 Fuel Pool Cooling System - System No. 1219 P&ID 40112B, 36 Safety Injection System - System No. 1204 P&ID 40112BS03, 37 Safety Injection System - System No. 1204 P&ID 40114A, 15 Containment Spray System -

System No. 1206 P&ID 40114AS03, 15 Containment Spray System -

System No. 1206 SCE26-424 REV. 6 12105 [

REFERENCE:

S0123-XXIV-7.15)

CALCULATION CROSS-INDEX I ECN NO./

PRELIM. CCN NO.

PAGE OF-Calculation No.

M-DSC-445 Sheet "I

of 109 I CCN CONVERSION:

CCN NO. CCN-lU INPUTS OUTPUTS Calc. rev.

Doesthe Identify output interface number and These interfacing calculations and/or Results and conclusion of the output interface caic/document responsible documents provide input to the subject subject calculation are used in calc/document FLS Initials calculation, and if revised may require these interfacing calculations require CCN, ECP, TCN/Rev., or and date revision of the subject calculation, and/or documents.

Change?

tracking number.

Cale/Document No.

1

-Rev. No.

-Cale/Document No.

Rev. No.

YES I NO 0

P&ID 40114D, 20

t.

Containment Spray System -

System No. 1206 P&ID 40114DS03, 19 Containment Spray System -

System No. 1206 SCE 26-424 REV. 6 12105 [

REFERENCE:

S0123-XXIV-7.151

SCE Calc M-DSC-445, Rev 0

Subject:

Flaw Evaluation of ECCS Schedule 10s Piping 1

.Sheet 8 of 108 CALCULATION COVER SHEET Calculation No.:

AES-C-7384-2 Client:

Southern::California.Edison

Title:

Allowable Through-Wall Flaws in ECCS Project No.:,

AES-10027384-2Q Schedule 10s.Piping at SONGS Units 2 &3 APTECH Office:

Sunnyvale.

Page No.

1. of 101 03 Uncontrolled M Controlled Document Control No.:

.k-2

Purpose:

. The purpose -of this calculation :is to -determine the -alowable through-wall flaw lengths for the emergency core cooling system (ECCS) piping in a generic evaluation for-pipe sizes:ranging from.

2.5..NPS to,24 NPS. The methods of ASME Section"Xl Code Case N-513,-2 are used in this calculation.

Assumptions:

The major assumptions: are given in Section 3 of this calculation.

Results:

The calculated allowable through-wall flaw lengths for the Schedule 1 Os piping covered by this calculation are summarized in Section 2. The specific calculations are given in Section 8.0, Results for'bounding stresses for the range in pipe sizes in the affected subsystems'are given in Appendix A.

Prepared Checked Verified Approved Revision By Byý By By Revision Description No.

Date Date Date Date 0

'zi/

/_/

/,

Initial Release ENGINEERING 0 SCIENCE 0 TECHNOLOGY QAN45 REV. 8/96

SCE Calc M-DSC-445, Rev 0

Subject:

Flaw Evaluation of ECCS Schedule 10s Piping II PTECH ENGINEEMNO R 5MM9l* 2 TECHNGKLO*W Sheet 9 of 108 Made by:

Date:

Client:

Calculation No.:

AES-C-7384-2 RCC 5/14/10 SCE Checked by:

Date:

Project No.:

Title:

Allowable Through-Wall Flaws in ECCS CQL 5/14/10 AES-10027384-2Q Schedule 10s Piping at SONGS Units 2 & 3 Revision No.:

Document Control No.:

Page No.:

0 1-2 2 of 101 Section 1.0 2.0 2.1 2.2 3.0 4.0

.4.1 4.2 4.3 4.4 5.0 5.1 5.2 5.3 5.4 5.5 6.0 7.0 8.0 8.1 8.2 8.3 8.4 TABLE OF CONTENTS Title INTRODUCTION

SUMMARY

Allowable Circumferential Flaw Lengths Allowable Axial Flaw Lengths ASSUMPTIONS DESIGN INPUT Piping Geometry Materials of Construction Design and Operating Conditions Design Stress Data ANALYSIS METHOD Ductile Fracture Evaluation Combined Stress Membrane Stress Acceptance Criteria Limit Load Evaluation' Piping Stresses Flow Stress Consideration for Axial Flaws REFERENCES NOMENCLATURE CALCULATIONS Evaluation Overview Allbwable Effective Bending Stress Allowable Circumferential Flaw Lengths Allowable Axial Flaw Lengths Page 4

6 6

9 5.1.1 5.1.2 5.1.3 10 11 11 12 12 14 15 15 15 18 19 19 20 22 22 24 26 28 28 28 33 33 QAE17 REV 8/96

SCE Calc M-DSC-445, Rev 0

Subject:

Flaw Evaluation of ECCS Schedule 10s Piping Sheet 10 of 108 Made by:

RCC Date:

5/14/10 Client:

Calculation No.:

AES-C-7384-2

Title:

Allowable Through-Wall Flaws in ECCS Schedule 10s Piping at SONGS Units 2 & 3 SCE Checked by:

Date:

Project No.:

CQL 5/14/10 AES-10027384-2Q Revision No.:

0 Document Control No.:

Page No.:

1-2 3 of 101 TABLE OF CONTENTS (Cont'd)

Section Title Paae Appendices Appendix A - Evaluation for Allowable Flaw Lengths for ECCS Schedule 10s Piping 34 Appendix B - ECCS Schedule 10s Process and Instrumentation Diagrams 88 QAE17 REV 8/96

SCE Calc M-DSC-445, Rev 0

Subject:

Flaw Evaluation of ECCS Schedule 10s Piping Sheet 11 of 108 Made by:

Date:

Client:

Calculation No.:

AES-C-7384-2 RCC 5/14/10 SCE 2

Title:

Allowable Through-Wall Flaws. in ECCS Checked by:

Date:

Project No.:

CQL 5/14/10 AES-10027384-2Q Schedule 1Os Piping at SONGS Units 2 & 3 Revision No.:

Document Control No.:

Page No.:

0 1-2 4 of 101

1.0 INTRODUCTION

The purpose of this calculation is to determine the stress conditions and through-wall lengths for acceptance of flaws detected in the emergency core cooling system (ECCS) Schedule 1 Os piping.

Calculations for allowable through-wall (Tw) flaw lengths for axial and circumferential flaws are provided.

The scope of this calculation covers 2.5 nominal pipe size (NPS) through 24 NPS in selected ECCS piping that are either defined as moderate or high energy. This calculation covers both Units 2 and 3.

The flaw evaluation follows the requirements for Code Case N-513-2 (Ref. 1). Temporary acceptance of flaws, including TW leaking flaws, falls within the scope of N-5i 3-2. and covers moderate energy Class 2 and 3 piping systems. Moderate energy piping is defined as pipe having a maximum operating temperature of 200°F and a maximum operating pressure of 275 psi. Therefore, for those portions of the ECCS piping that satisfy the moderate energy definition, meeting N-513-2 satisfies the Code requirements. For portions of the piping that are outside the moderate energy category, N-513-2 is used herein as guidance in establishing pipe integrity subject to the regulatory review and approval. The specific subsystems and lines that have been identified as high energy, and are evaluated herein, are listed in Table 1-1 (Ref. 2). These lines meet the definition of moderate energy for maximum operating pressure, but operate at temperatures higher than 200TF.

The acceptance criteria for TW flaws per the requirements of N-513-2 are those specified in Article C-2620 of ASME Section Xl, Appendix C (Ref. 3). The circumferential flaws are evaluated as planar cracks following the flaw evaluation procedures of C-6320 for elastic plastic failure mode, and C-5320 for limit load failure mode, as appropriate. For axial flaws, N-513-2 provides the analytical method for calculating the allowable TW flaw lengths.

QAE17 REV 8/96

SCE Calc M-DSC-445, Rev 0

Subject:

Flaw Evaluation of ECCS Schedule 10s Piping Sheet 12 of 108 Made by:

RCC Date:

5/14/10 Client:

Calculation No.:

AES-C-7384-2

Title:

Allowable Through-Wall Flaws in ECCS Schedule 10s Piping at SONGS Units 2 & 3 SCE Checked by:

Date:

Project No.:

CQL 5/14/10 1

AES-10027384-2Q Revision No,:

0 Document Control No.:

Page No.:

1-2 5 of 101 Table 1-1 Summary of Schedule 10s Piping Pipe High Material Sizes Energy Spec System Subsystem Line Section Description (NPS)

Line

[Note 1]

1 ECCS RWST 1204ML001 Between T005 and HV9300 24 No 2

ECCS ALL TRAIN A 1204ML001 Between HV9300 and MU001 24 No SA-358 3

ECCS ALL TRAIN A 1204ML108/003/

Bounded by Valves MU001, MU003, 24/10/16 Yes 007/009 MU007, MU010, and MU062 4

ECCS HPSI TRAIN A 1204ML007 Between MU007 and P017 8

Yes SA-376 5

ECCS HPSI COMMON 1204ML009 Between MU010, MU011 and P018 8

Yes 6

ECCS ALL TRAIN A 1204ML003 Between MU003 and HV9303 24 Yes SA-358 7

ECCS ALL TRAIN A 1204ML003 Between HV9303 and Emergency 24 Yes Sump 8

ECCS LPSI TRAIN A 1204ML032 Between "T" of Line ML003 and 14 Yes(2)

SA-358 P015 [Note 2]

9 ECCS CS TRAIN A 1204ML003 Between MU062 and P012 16/14 Yes SA-358 10 ECCS RWST 1219ML073 Between T005 and MU075 3

No SA-376 11 ECCS RWST 1204ML002 Between T006 and HV9301 24 No SA-358 12 ECCS ALL TRAIN B 1204ML002 Between HV9301 and MU002 24 No 13 ECCS ALL TRAIN B 1204ML109/004/

Bounded by Valves MU002, MU004, 24/10/16 Yes SA-358 031/008/010 MU009, MU011, MU005, & MU199 SA-376 14 ECCS HPSI TRAIN B 1204ML008 Between MU009 and P019 8

Yes SA-376 15 ECCS ALL TRAIN B 1204ML004 Between MU004 and HV9302 24 Yes SA-358 or 16 ECCS ALL TRAIN B 1204ML004 Between HV9302 and Emergency 24 Yes SA 312 Sump 17 ECCS LPSI TRAIN B 1204ML033 Between MU199 and P016 [Note 2]

14 Yes (2)

SA-358 or 18 ECCS CS TRAIN B 1204ML004 Between MU005 and P013 16/14 Yes SA-35o SA-312 19 ECCS RWST 1219ML072 Between T006 and MU074 3

No SA-376 20 ECCS RWST 1219ML068 RWST Crosstie 24 No SA-358 21 ECCS MINIFLOW 1204ML131 Between HV9347 and mini flow tie 4

Yes 22 ECCS MINIFLOW 1204ML151 Between HV9306 and mini flow tie 4

Yes 23 ECCS MINIFLOW 1204ML180 Between PSV9308 and mini flow tie 2.5 Yes SA-376 24 ECCS MINIFLOW 1204ML080 Between Valves MU060 & MU068 6

Yes 25 ECCS MINIFLOW 1219ML107 Between Valves MU068 and T005 10 No 26 CVCS RWST 1219ML057 Between T006 and MU067 (gravity 6

No 26_

VC RWST__1219ML057 feed to charging) 27 SFP RWST 1219ML066 Between T006 and MU070 (to SFP 4/3 No SA-376 or I

make up pump)

SA-312 Note 1 - Material specifications are SA-358 T304 Class 1, SA-376 TP304, and SA-312 T304.

Note 2 - These lines are Schedule 20 and are not evaluated.

QAE17 REV 8/96

SCE Calc M-DSC-445, Rev 0

Subject:

Flaw Evaluation of ECCS Schedule 10s Piping Sheet 13 of 108 NI.EMRNG 0 5C.IEHCF 0 TECHNOLOGY Made by:

Date:

Client:

Calculation No.:

AES-C-7384-2 RCC 5/14/10 SCE Checked by:

Date:

Project No.:

Title:

Allowable Through-Wall Flaws in ECCS CQL 5/14/10 AES-10027384-2Q Schedule 10s Piping at SONGS Units 2 & 3 Revision No.:

Document Control No.:

Page No.:

0 1-2 6 of 101 2.0

SUMMARY

The allowable TW flaw lengths were calculated following the procedures of Code Case N-513-2 and the pipe flaw procedures of ASME Section X1 Appendix C for austenitic stainless steel piping. Allowable circumferential flaws were determined from the procedures of Article C-5320 and C-6320 of Appendix C for limit load and elastic plastic failure mechanisms: Allowable axial flaws were determined for limit load failure mode following the procedures of C-5420 as amended by N-513-2. Flaw acceptance criteria of C-2620 were used to establish the allowable TW lengths.

2.1 Allowable Circumferential Flaw Lengths The analytical evaluation methods of Article C-6320 for ductile fracture using elastic-plastic fracture mechanics (EPFM) criteria were used in the determination of allowable TW flaw lengths under upset and faulted loading conditions. The EPFM method is appropriate to account for the possibility of having lower toughness weldments in the austenitic pipe. These welds are classified as flux welds in Appendix C of ASME Section Xl, and incorporate either sub-merged arc weld (SAW) or shielded metal arc weld (SMAW) process. For flaws not associated with butt welds made by SAW or SMAW, such as tungsten inert gas (TIG) welding or wrought pipe, the analytical evaluation methods of Article C-5320 for limit load (LL) failure were used in the determination of allowable TW flaw lengths.

The detailed results from these calculations are given in Section 8. Section 8.2 provides graphical results for allowable stresses as a function of TW flaw length for direct comparison with NDE results from field examinations. These plots are given in Figures 8-1 and 8-2.

Specific calculations for allowable TW length, ea8,w, are discussed in Section 8.3. These calculations are based on maximum enveloping stresses obtained from piping stress reviews (see appendices). For each of the 27 subsystems listed for the ECCS, the allowable TW lengths were determined. Summary of the allowable length calculations by pipe size is given in Appendix A. Process and instrumentation diagrams are given in Appendix B.

The summary table of allowable sizes is given in Table 2-1.

QAE17 REV 8/96

SCE Calc M-DSC-445, Rev 0

Subject:

Flaw Evaluation of ECCS Schedule 10s Piping M

SCIECE Sheet 14 of 108 Made by:

Date:

Client:

Calculation No.:

AES-C-7384-2 RCC 5/14/10 SCE Checked by:

Date:

Project No.:

Title:

Allowable Through-Wall Flaws in ECCS CQL 5/14/10 AES-10027384-2Q Schedule 10s Piping at SONGS Units 2 & 3 Revision No.:

Document Control No.:

Page No.:

0 1-2 7 of 101 Table 2-1 Summary of Allowable Circumferential Flaw Length Results Allowable Flaw Length

-Gl~ow (in)

Pipe High SAW Section Size Energy and TIG and Subsystem Line Description (NPS)

Line SMAW Wrought 1

RWST 1204ML001 Between T005 and 24 No 8.83 36.9 HV9300 2

ALL TRAIN A 1204ML001 Between HV9300 and 24 No 8.83 36.9 Bounded by Valves 10 Yes 15.19 18.70 3

ALL TRAIN A 1204ML108/003 MUJ001, MU003, 16 Yes 15.97 22.95

/007/009 MU007, MU010, and MU062 24 Yes 24.38 36.47 4

HPSI TRAIN A 1204ML007 8

Yes 12.41 15.53 P017 5

HPSI COMMON 1204ML009 Between MU010, 8

Yes 2.94 7.12 MU01 1 and P01 8 6

ALL TRAIN A 1204ML003 Between MU003 and 24 Yes 11.17 34.79 HV9303 7

ALL TRAIN A 1204ML003 Between HV9303 and 24 Yes 11.17 34.79 Emergency Sump 8

LPSI TRAIN A 1204ML032 Between "T" of Line 14 Yes Not evaluated [Note 1]

ML003 and P015 9

CS TRAIN A 1204ML003 Between MU062 and 14 Yes

[Note 2]

[Note 2]

P012 16 Yes 15.97 22.95 10 RWST 1219ML073 Between T005 and 3

No 7.89 8.36 MU075 11 RWST 1204ML002 Between T006 and 24 No 17.22 33.01 HV9301 Between HV9301 and 12 ALL TRAIN B 1204ML002 M0 24 No 17.22 33.01 Bounded by Valves 10 Yes 13.03 16.65

• 13 ALL TRAIN B 1204ML109/004/

MU002, MU004, 16 Yes 19.20 25.53 031/008/010 MU009, MU011, MU005, and MU199 24 Yes 17.22 33.01 14 HPSI TRAIN B 1204ML008 Between MU009 and 8

Yes 2.94 7.12 P019 15 ALL TRAIN B 1204ML004 Between MU00 4 and 24 Yes 6.87 21.06 HV9302_____

16 ALL TRAIN B 1204ML004 Between HV9302 and 24 Yes 6.87 21.06 Emergency Sump 17 LPSI TRAIN B 1204ML033 Between MU199 &

14 Yes Not evaluated [Note 1]

~~P016 Between MU005 and 14 Yes

[Note 2]

[Note 2]

P013 16 Yes 19.20 25.53 19 RWST 1219ML072 BetweenT006and 3

No 7.91 8.37 1 _MU074 QAE17 REV 8/96

SCE Caic M-DSC-445, Rev 0

Subject:

Flaw Evaluation of ECOS Schedule 10Os Piping ii 70PIRNCH Sheet 15 of 108 Made by:

Date:

Client:

Calculation No.:

AES-C-7384-2 RCC 5/14/10 SCE Checked by:

Date:

Project No.:

Title:

Allowable Through-Wall Flaws in ECCS CQL 5/14/10 AES-10027384-2Q Schedule 1Os Piping at SONGS Units 2 & 3 Revision No.:

Document Control No.:

Page No.:

0 1-2 8 of 101 Table 2-1 Summary of Allowable Circumferential Flaw Length Results (Cont'd)

Allowable Flaw Length

-1a1ow (in)

Pipe High SAW TIG Section Size Energy and and Appendix Subsystem Line Description (NPS)

Line SMAW Wrought Section 20 RWST 1219ML068 RWST Crosstie 24 No 41.38 50.79 A.11 21 MINIFLOW 1204ML131 Between HV9347 and 4

Yes 5.88 7.50 mini flow tie 22 MINIFLOW 1204ML151 Between HV9306 and 4

Yes 3.68 6.14 mini flow tie 23 MINIFLOW 1204ML180 Between PSV9308 and 2.5 Yes 1.65 2.98 A.12 mini flow tie 24 MINIFLOW 1204ML080 Between6 Yes 2.60 8.49 MU060 & MU068 25 MINIFLOW 1219ML107 Between Valves 10 No 10.39 16.0 MU068 and T005 Between T006 and 26 RWST 1219ML057 MU067 (gravity feed to 6

No 6.97 14.06 A.13 charging)

Between T006 and 3

No 5.06 5.68 27 RWST 1219ML066 MU070 (to SFP make A.14 up pump) 4 No 4.89 8.02 Notes:

1) -Items 8 and 17 are high energy lines but were not evaluated because piping is Schedule 20.

2)

The 14 NPS piping in CS Trains A and B (Items 9 and 18) are Schedule 20 and therefore were not evaluated.

QAEI 7 REV 8/96

SCE Calc M-DSC-445, Rev 0

Subject:

Flaw Evaluation of ECCS Schedule 1 Os Piping M,

0APTECHP ENGINEERING 0* SCIENE 0 TECGHNOLOGUY Sheet 16 of 108 Made by:

Date:

Client:

Calculation No.:

AES-C-7384-2 RCC 5/14/10 SCE Checked by:

Date:

Project No.:

Title:

Allowable Through-Wall Flaws in ECCS CQL 5/14/10 AES-10027384-2Q Schedule 10s Piping at SONGS Units 2 & 3 Revision No.:

Document Control No.:

Page No.:

0 1-2 9 of 101 2.2 Allowable Axial Flaw Lengths The allowable axial TW flaw lengths were computed for bounding operating pressure and temperature conditions following N-513-2. Specific calculations for allowable axial TW flaw lengths are given in Section 8.4. The results are summarized in Table 2-2.

Table 2-2 Summary of Allowable Axial Through-Wall Lengths (P. = 110 psi* To =275 F)

Pipe Size OD t

fallow (NPS)

(in)

I (in)

J (in) 2.5 2.875 0.120 9.16 3

3.5 0.120 8.32 4

4.5 0.120 7.35 6

6.625 0.134 7.14 8

8.625 0.148 7.25 10 10.75 0.165 7.62 14 14.00 0.188 8.08 16 16.00 0.188 7.51 24 24.00 0.250 9.32 QAE17 REV 8/96

SCE Calc M-DSC-445, Rev 0

Subject:

Flaw Evaluation of ECCS Schedule 10s Piping Sheet 17 of 108 N

N M

OP DTECHK1O1O Made by:

Date:

Client:

Calculation No.:

AES-C-7384-2 RCC 5/14/10 SCE Checked by:

Date:

Project No.:

Title:

Allowable Through-Wall Flaws in ECCS CQL 5/14/10 AES-10027384-2Q Schedule 10s Piping at SONGS Units 2 & 3 Revision No.:

Document Control No.:

Page No.:.

0 1-2 10 of 101 3.0 ASSUMPTIONS The following major analysis assumptions are made:

1. Code Case N-513-2 is used as guidance. Flaw evaluation methods in Appendix C of ASME Section XI are generally applicable for Schedule 10s austenitic stainless steel pipe.

2. ASME Appendix C is applicable to NPS > 4 as stated in IWB-3640. For sizes less than 4 NPS, the methods of Appendix C are generally applicable and are used herein for NPS < 4.

To be conservative, the Z factor for NPS equal to 4 will be used when the pipe size under evaluation is less than NPS 4. This is conservative since the trend in Z factor is to decrease with NPS. Assuming NPS 4 for sizes less than NPS 4 will cause a higher stress multiplier to be applied in the calculation for allowable flaw length.

3. The failure mode is conservatively assumed to be elastic-plastic ductile fracture for circumferential flaws at pipe butt weld locations. For circumferential flaws not associated with flux welds, e.g., tungsten inert gas (TIG) welds and wrought pipe locations including locations at attachment welds, limit load failure mode is assumed.

4. For circumferentially oriented flaws located at the butt welds the weld properties are conservatively assumed to be those of flux welds, either shielded metal-arc (SMAW) or submerged-arc (SAW) welds. When applicable, a separate analysis for allowable TW length for flaws not associated with flux butt welds, such as TIG welds, attachment welds, or in wrought pipe, was completed for use in flaw acceptance provided the material product form and weld process can be established.

5.

For axial oriented flaws, the properties of wrought pipe are assumed in the limit load evaluation.

6. Following the pipe flaw evaluation procedures for austenitic materials in ASME Section X1, Appendix C, weld residual stresses do not need to be included in the evaluation of allowable flaw size and are therefore neglected in the calculation of allowable flaw length.

7. Design basis conditions include sustained and occasional (upset and faulted) loads.

Occasional loads control the design of the piping. There are no loading conditions classified as emergency. Therefore, the calculations for allowable flaw length are based on the limiting criteria for upset and faulted loads.

QAE17 REV 8/96

SCE Calc M-DSC-445, Rev 0

Subject:

Flaw Evaluation of ECCS Schedule 10s Piping tNOIN.ERNG 13 SCIENCE 0 TECfHOLOGY Sheet 18 of 108 Made by:

Date:

Client:

Calculation No.:

AES-C-7384-2 RCC 5/14/10 SCE Checked by:

Date:

Project No.:

Title:

Allowable Through-Wall Flaws in ECCS CQL 5/14/10 AES-10027384-2Q Schedule 10s Piping at SONGS Units 2 & 3 Revision No.:

Document Control No.:

Page No.:

0 1-2 11 of 101 4.0 DESIGN INPUT 4.1 Piping Geometry The piping geometry was extracted from the piping design calculations and summary listing (Ref. 2). The piping geometry for ECCS is given below:

Table 4-1 Piping Dimensions - Schedule 10s CID t

R NPS (in) j (in)

(in)

R/t 2.5 2.875 0.12 1.378 11.48 3

3.5 0.12 1.690 14.08 4

4.5 0.12 2.190 18.25 6

6.625 0.134

.3.246 24.22 8

8.625 0.148 4.239 28.64 10 10.75 0.165 5.293 32.08 14 14.00 0.188 6.906 36.73 16 16.00 0.188 7.906 42.05 24 24.00 0.25 11.875 47.50 The dimensions for the range in pipe sizes were obtained from Ref. 4.

QAE17 REV 8/96

SCE Calc M-DSC-445, Rev 0

Subject:

Flaw Evaluation of ECCS Schedule 10s Piping Sheet 19 of 108 fNg lVERtNG 0 SCEW TECHMOLOGY Made by:

Date:

Client:

Calculation No.:

AES-C-7384-2 RCC 5/14/10 SCE Checked by:

Date:

Project No.:

Title:

Allowable Through-Wall Flaws in ECCS CQL 5/14/10 AES-10027384-2Q Schedule 10s Piping at SONGS Units 2 & 3 Revision No.:

Document Control No.:

Page No.:

0 1-2 12 of 101 4.2 Materials of Construction The ECCS piping is constructed from Type 304 stainless steel in three different material specifications:

ASME SA-376 TP 304, ASME SA-358 Grade T304, Class 1, and ASME SA-312, T304. The material specifications are listed in Table 1-1 for each subsystem. The mechanical properties for these specifications are listed under the same material grouping for specified minimum yield, tensile and allowable stress.. The specified minimum strength properties for the pipe materials are given in Table 4-2 (Ref. 5):

Table 4-2 Mechanical Strength Properties Parameter

-20 to 200OF 300OF 400OF Paraete 100°FI Sy (ksi) 30.0 25.0 22.5 20.7 S. (ksi) 75.0 71.0 66.0 64.4 S (ksi) 18.8 17.8 16.6 16.2 4.3 Design and Operating Conditions The design and operating conditions for the ECCS piping were extracted from Ref. 2. The reported conditions indicated operating pressures were in the range of 15 psig to 110 psig as shown in Table 4-3.

The operating temperatures are in the range of ambient to 2750F.

In the calculation of the generic graphs for allowable effective bending stress versus TW flaw length, the bounding operating conditions for all ECCS Schedule 1Os pipe were used:

Po = 110 psig To = 275°F The bounding operating conditions are also conservatively used in the evaluation of axial flaws.

QAEI 7 REV 8/96

SCE Calc M-DSC-445, Rev 0

Subject:

Flaw Evaluation of ECCS Schedule 10s Piping rO RPTECHJ E.NGMNE*RANG 0 SVENCE 12 TECHNOLOGY Sheet 20 of 108 Calculation No.:

AES-C-7384-2

Title:

Allowable Through-Wall Flaws in ECCS Schedule 10s Piping at SONGS Units 2 & 3 Table 4-3 Summary of Design and Operating Conditions IT1Size PD T o To p

Subsystem Line Section Description (NPS)

(psig)

(OF)

(psig) J°FL 1

RWST 1204ML001 Between T005 and HV9300 24 25 150 15 AMB 2

ALL TRAIN A 1204ML001 Between HV9300 and 24 25 150 15 AMB 1204ML108/003/

Bounded by Valves MU001, 3

ALL TRAIN A 007/009 MU003, MU007, MU010, 24/10/16 110 250 110 225 and MU062 4

HPSI TRAIN A 1204ML007 Between MU007 and P017 8

110 250 110 225 5

HPSI COMMON 1204ML009 Between MU010, MU011 8

110 250 110 225 and P018 6

ALL TRAIN A 1204ML003 Between MU003 and 24 110 250 110 225 HV9303 7

ALL TRAINA 1204ML003 Between HV9303 and 24 110 250 110 225 7

ALL TRAIN A 1204ML003 Emergency Sump2 8

LPSI TRAIN A 1204ML032 Between "'T' of Line ML00314435400 435 350 and P015 [see Note]

9 CS TRAIN A 1204ML003 Between MLU062 and P012 16/14 110 250 110 225 10 RWST 1219ML073 Between T005 and MU075 3

25 150 15 AMB 11 RWST 1204ML002 Between T006 and HV9301 24 25 150 15 AMB 12 ALL TRAIN B 1204ML002 Between HV9301 and 24

.25 150 15 AMB MU002 1204ML109/004/

Bounded by Valves MU002, 13 ALL TRAIN B 031/008/010 MU004, MU009, Muo1, 24/10/16 110 250 110 225 MU005, & MU199 14 HPSI TRAIN B 1204ML008 Between MU009 and P019 8

110 250 110 225 15 ALL TRAIN B 1204ML004 Between MU004 and 24 110 250 110 225 HV9302 16 ALL TRAIN B 1204ML004 Between HV9302 and 24 110 250 110 225 Emergency Sump 17 LPSI TRAIN B 1204ML033 BetweenMU199andP016 14

[see Note]

18 CS TRAIN B 1204ML004 Between MU005 and P013 16/14 110 250 110 225 19 RWST 1219ML072 Between T006 and MU074 3

25 150 15 AMB 20 RWST 1219ML068 RWST Crosstie 24 25 150 15 AMB 21 MINIFLOW 1204ML131 Between HV9347 and mini 175 400 50 275 flow tie 4

_75 40_0_7 22 MINIFLOW 1204ML151 Between HV9306 and mini 4

175 400 50 275 flow tie 23 MINIFLOW 1204ML180 Between PSV9308 and mini 2.5 175 400 50 275 flow tie 24 MINIFLOW 1204ML080 Between Valves MU060 &

6 175 400 50 275 MU068 25 MINIFLOW 1219ML107 Between Valves MU068 and 10 175 150 15 AMB T005 26 RWST 1219ML057 Between T006 and MU067 6

25 150 15 AMB (gravity feed to charging) 27 RWST 1219ML066 Between T006 and MU070 4

25 150 15 AMB (to SFP make up pump)

Note: Items 8 and 17 are high energy lines but were not evaluated because piping is Schedule 20.

QAE17 REV 8/96

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Subject:

Flaw Evaluation of ECCS Schedule 10s Piping Sheet 21 of 108 RPTECH Made by:

Date:

Client:

Calculation No.:

AES-C-7384-2 RCC 5/14/10 SCE Checked by:

Date:

Project No.:

Title:

Allowable Through-Wall Flaws in ECCS CQL 5/14/10 AES-10027384-2Q Schedule 10s Piping at SONGS Units 2 & 3 Revision No.:

Document Control No.:

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0 1-2 14 of 101 4.4 Design Stress Data The piping design stresses for use in the flaw evaluation for upset and faulted loading conditions are given in the Appendix A for each ECCS subsystems listed in Table 4-3. A listing of the relevant piping stress calculations and process and instrumentation diagrams (P&ID) was provided in Refs. 2 and 6.

The design stress input for this calculation is given in Ref. 7. The P&IDs for the ECCS subsystems are given in Appendix B as provided in Ref. 8.

QAEI7 REV 8/96

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Subject:

Flaw Evaluation of ECCS Schedule 10s Piping Sheet 22 of 108 E.NGINUUNC U SINC;E 0 Term*H*ow Made by:

Date:

Client:

Calculation No.:

AES-C-7384-2 RCC 5/14/10 SCE Checked by:

Date:

Project No.:

Title:

Allowable Through-Wall Flaws in ECCS CQL 5/14/10 AES-10027384-2Q Schedule 10s Piping at SONGS Units 2 & 3 Revision No.:

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0 1-2 15 of 101 5.0 ANALYSIS METHOD Code Case N-513-2 provides evaluation criteria and requirements which were applied in this calculation.

N-513-2 refers to the analytical methods of ASME Section XI Appendix C for performing evaluations for planar flaws in piping, including TW (leaking) flaws. Figure 5-1 is a schematic illustration of the flaw models in Appendix C.

The allowable TW flaw lengths were calculated following the procedures of Appendix C for the Schedule 10s austenitic stainless steel piping in the ECCS. Allowable circumferential flaws were determined from the procedures of Article. C-5320 and C-6320 of Appendix. C for limit load and elastic plastic failure mechanisms. Allowable axial flaws were determined for limit load failure mode following the procedures of C-5420 as provided in N-513-2. Flaw acceptance criteria of C-2620 were used to establish the allowable TW lengths.

The analytical evaluation methods of Article C-6320 for ductile fracture using elastic-plastic fracture mechanics (EPFM) criteria were used in the determination of allowable TW flaw lengths under upset and faulted loading conditions. The EPFM method is appropriate to account for the possibility of having lower toughness weldments in the austenitic pipe. These welds are classified as flux welds in Appendix C of ASME Section X1, and incorporate either SAW or SMAW process. For flaws not associated with butt welds made by SAW or SMAW, such as TIG welding or wrought pipe, the analytical evaluation methods of Article C-5320 for limit load failure were used in the determination of allowable TW flaw lengths.

5.1 Ductile Fracture Evaluation The allowable TW flaw lengths for EPFM are determined analytically from the evaluation of combined membrane plus bending stress, and membrane stress only. The allowable TW flaw length is the smallest TW flaw length from these evaluations considering each design-basis loading condition.

5.1.1 Combined Stress The analytical methods of C-6321 of ASME Code, Section X1, Appendix C for circumferential flaws under combined membrane plus bending loads require that z 1 F 137e 1 1 SFb Z

ZSFm where Sc =

allowable primary bending stress for circumferentially flawed pipe C=

bending stress at incipient plastic collapse from C-5321 Gm membrane stress QAE17 REV 8/96

SCE Calc M-DSC-445, Rev 0

Subject:

Flaw Evaluation of ECCS Schedule 10s Piping P pRIPTZ EC [m 1ENGINEE PUNU 0 WENCE O TECHKOLOM¥ Sheet 23 of 108 Made by:

Date:

Client:

Calculation No.:

AES-C-7384-2 RCC 5/14/10 SCE Checked by:

Date:

Project No.:

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Allowable Through-Wall Flaws in ECCS CQL 5/14/10 AES-10027384-2Q Schedule 10s Piping at SONGS Units 2 & 3 Revision No.:

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0 1-2 16 of 101 t/2 t

"' Neutral axis (a) Circurrnferenfial Flaw (b) Axial Flaw Figure 5 Through Wall Flaw Models for Pipe Flaw Evaluation in ASME Section Xl QAE17 REV 8/96

SCE Calc M-DSC-445, Rev 0

Subject:

Flaw Evaluation of ECCS Schedule 10s Piping E*N*N ERING 3 SCIENCE O TECHQLM Sheet 24 of 108 Made by:

Date:

Client:

Calculation No.:

AES-C-7384-2 RCC 5/14/10 SCE Checked by:

Date:

Project No.:

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Allowable Through-Wall Flaws in ECCS CQL 5/14/10 AES-10027384-2Q Schedule 10s Piping at SONGS Units 2 & 3 Revision No.:

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0 1-2 17 of 101

(=

thermal expansion stress SFm = structural factor for membrane stress (C-2621)

SFb = structural factor for bending stress (C-2621)

Z =

Load multiplier to account for elastic-plastic material behavior (Z factor)

The Z factors for flux welds are given in C-6330 and are computed from the following equation:

Z = 1.30 [1+0.010(NPS-4)]

where NPS is the nominal pipe size. Note that Z can not be less than unity.

Solving for the bending stress at plastic collapse from the above requirement on primary bending load gives the following when Sc = Cb, b

S Sm~

b Ie>SFbcm (5-2)

The TW flaw length as shown in Figure 5-1 a, and applied'stress level required to cause the remaining weld cross-section to become fully plastic, is given by:

c 2cyf [2 sinI3-sin e]

(5-3)

[I1-(0/7TO- (Cyrnf/ U01 j3=2 when (0 + 13) < 7, and ac sinf bt (5-4)

=

.am Cof when (0 + 03) > 7c. The angle 0 is the crack half-angle where the vertical axis passes through the centerline of the flaw. The angle P3 is the angle to the neutral axis for bending measured from the vertical QAE17 REV 8/96

SCE Calc M-DSC-445, Rev 0

Subject:

Flaw Evaluation of ECCS Schedule 10s Piping N1 rEaEfRiNG a SCIENCE TECHNOLOGY Sheet 25 of 108 Made by:

Date:

Client:

Calculation No.:

AES-C-7384-2 RCC 5/14/10 SCE Checked by:

Date:

Project No.:

Title:

Allowable Through-Wall Flaws in ECCS CQL 5/14/10

.AES-10027384-2Q Schedule 1Os Piping at SONGS Units 2 & 3 Revision No.:

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0 1-2 18 of 101 axis. The solution for the allowable TW flaw length is therefore calculated by equating Eq. 5-2 with Eq. 5-3 or Eq. 5-4, as appropriate, and solving for allowable TW flaw half-angle, 0aow, by an iterative method.

The allowable TW length is tallow

=

allow Do (5-5) where Do is the outside diameter. The determination of am, ab, and Ge is discussed in Section 5.3. The flow stress, af, for the pipe material is defined later in Section 5.4.

5.1.2 Membrane Stress The analytical methods of C-6322 of ASME Code,Section XI, Appendix C for circumferential flaws under pure membrane loads require that St =ZSFm (5-6) where St =

allowable primary membrane stress for circumferentially flawed pipe Gcm = membrane stress at incipient plastic collapse from C-5322 SFm = structural factor for membrane stress (C-2621)

Solving for the membrane stress at plastic collapse from the above requirement on primary membrane load gives the following when St = am, a = ZSFm Gm (5-7)

The TW flaw length and applied membrane stress level required to cause the remaining weld cross-section to become fully plastic is given by:

GC=

Tf [1-0/7c-2(p fit]

(5-8)

= sin- (0.5 sin 0)

QAE17 REV 8/96

SCE Calc M-DSC-445, Rev 0

Subject:

Flaw Evaluation of ECCS Schedule 10s Piping ENGINEERING 1 SCIENCE D TECHNOLOGY Sheet 26 of 108 Made by:

Date:

Client:

Calculation No.:

AES-C-7384-2 RCC 5/14/10 SCE Checked by:

Date:

Project No.:

Title:

Allowable Through-Wall Flaws in ECCS CQL 5/14/10 AES-10027384-2Q Schedule 10s Piping at SONGS Units 2 & 3 Revision No.:

Document Control No.:

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0 1-2 19 of 101 The solution for the allowable TW flaw length is therefore calculated by equating Eq. 5-7 with Eq. 5-8 and solving for allowable TW half-crack angle by an iterative method. The allowable TW flaw length is defined by Eq. 5-5.

5.1.3 Acceptance Criteria The acceptance criteria for circumferential flaws per the requirements of N-513-2 are those specified in Article C-2620 of ASME Section XI, Appendix C in the form of analysis structural factors. The structural factors for upset (Service Level B) and faulted (Service Level D) for circumferential flaws are given in Table 5-1.

Table 5-1 Analysis Structural Factors for Flaw Acceptance Loading Membrane Bending Condition Stress Stress (SFm)

(SFb)

Normal 2.7 2.3 Upset 2.4 2.0 Emergency 1.8 1.6 Faulted 1.3 1.4 It should be noted that normal loading condition will not be limiting. Also, the affected piping system does not have emergency classified conditions as part of the design basis.

5.2 Limit Load Evaluation The allowable TW flaw lengths for limit load failure mode are.determined -analytically from the evaluation

• of combined stress and membrane stress. The allowable TW flaw length is the smallest TW flaw length from these evaluations considering each design-basis loading condition.

The analytical methods of C-5320 of ASME Code,Section XI, Appendix C for circumferential flaws under combined membrane and bending stress, and pure membrane stress, for limit load failure mode require:

s= SFb _m [

SFm St= I am]

(5-9)

(5-10)

QAE17 REV 8/96

SCE Calc M-DSC-445, Rev 0

Subject:

Flaw Evaluation of ECCS Schedule 10s Piping Sheet 27 of 108 ENGIlNEEFUNG 0 acrmfcE a TecHfKQLOGY Made by:

Date:

Client:

Calculation No.:

AES-C-7384-2 RCC 5/14/10 SCE Checked by:

Date:

Project No.:

Title:

Allowable Through-Wall Flaws in ECCS CQL 5/14/10 AES-10027384-2Q Schedule 10s Piping at SONGS Units 2 & 3 Revision No.:

Document Control No.:

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0 1-2 20 of 101 where again S, is the allowable primary bending stress and St is the allowable primary membrane stress, for circumferentially flawed pipe.

It can be seen from Eqs. 5-9 and 5-10 that the requirements for LL are similar to the EPFM method except that expansion stress is not considered (ce = 0) and Z factor is defined as unity (Z = 1.0).

5.3 Piping Stresses In determining the applied stresses from ASME Section III piping stress data, the membrane and bending stresses are the unconcentrated primary bending stress; that is, with the stress intensification factor (SIF) removed from the appropriate code equation. This is accomplished by dividing the code*

bending stress by either 0.75i or "i" as appropriate. Note that 0.75i can not be less than unity.

The code stresses were extracted from the base calculations for each ECCS subsystem (see appendices). The code equations from ASME Section III Subsection NC are as follows (Ref. 9):

" Equation 8 Sustain loads for pressure and dead weight (DW)

SSL = Pm + 0.75i MA zc Equation 9 Occasional load including upset (Eq. 9U) and faulted (Eq. 9F) conditions SOL =Prn + 0.75i(MA +MB)

Zc Equation 10 Thermal expansion including seismic anchor movement STE = iMc Zc where MA is the resultant moment due to DW and other sustained loads, MB is the resultant moment due to occasional loads such as thrusts, safety valve loads, earthquake, etc., and Mc is the resultant moment due to thermal expansion including moment effects from seismic anchor movements if anchor displacement effects were omitted from Eq. 9.

The stresses for use in the flaw evaluation for upset and faulted loading conditions are determined from the above code equations as follows

1) The primary axial membrane stress is calculated'from the minimum value from the two equations below:

QAE17 REV 8/96

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Subject:

Flaw Evaluation of ECCS Schedule 10s Piping Sheet 28 of 108 ARPTECH 4ERN 0 CEC TECHNOLOGY Made bv:

Date:

Client:

Calculation No.:

AES-C-7384-2 RCC 5/14/10 SCE Checked by:

Date:

Project No.:

Title:

Allowable Through-Wall Flaws in ECCS CQL 5/14/10 AES-10027384-2Q Schedule 10s Piping at SONGS Units 2 & 3 Revision No.:

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0 1-2 21 of 101 Pm -

D 4t PD2 Pm (D~o -Dr)

2) DW is equal to Eq. 8 stress minus the membrane stress due to design pressure:

DW =Eq. 8-Pm Iesign

3)

Seismic DBE was determined by subtracting Eq. 8 from Eq. 9F. Seismic OBE is defined as one-half the DBE.

DBE = Eq.9F - Eq.8 OBE = DBE/2

4) The unconcentrated DW stress (DW*) is then the DW divided by 0.75i

_DW DW * =-

0.75i

5) Axial membrane stress, ;m, is set equal to operating pressure stress, Pm I rn

=

m Operating

6) Bending stress Ub for upset conditions is equal to Eq. 9U stress minus operating pressure stress divided by 0.75i Eq. 9U - Pm I operating tyb =

0.75i

7) Bending stress, Gb for accident (faulted) conditions is equal to Eq. 9F stress minus operating pressure stress divided by 0.75i Eq. 9F - Pm operating 0.75i QAE17 REV 8/96

SCE Calc M-DSC-445, Rev 0

Subject:

Flaw Evaluation of ECCS Schedule 10s Piping ENGOIN EER G II SCIENCE 13 TEcH?6I.OGY Sheet 29 of 108 Made by:

Date:

Client:

Calculation No.:

AES-C-7384-2 RCC 5/14/10 SCE Checked by:

Date:

Project No.:

Title:

Allowable Through-Wall Flaws in ECCS CQL 5/14/10 AES-10027384-2Q Schedule 10s Piping at SONGS Units 2 & 3 Revision No.:

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0 1-2 22 of 101

8) Expansion stress, Oe is equal to Eq. 10 stress divided by 'T'.

= Eq.10 5.4 Flow Stress For the purpose of calculating the limit load of a pipe component, Article C-8200 of Appendix C to ASME Section Xl specifies a definition for flow stress as the average of the specified minimum yield and ultimate strengths:

_ Sy+Su c~f -

2 (5-11)

For strength calculations performed in this analysis, the minimum specified strength values at 275°F (maximum operating temperature) will be conservatively assumed. Based on Eq. 5-11 and the strength properties for the specified pipe material, the flow stress is:

_ ( 23.1 + 67.3) _ 45.2 ksi 2

This value for cyf will be used in the'evaluation of the pipe.

5.5 Consideration for Axial Flaws For flaws oriented axially along the pipe, the allowable through-wall flaw length is determined from the equations in N-513-2. The flaw model for this case is shown in Figure 5-1b. The governing relationship for allowable flaw length is given below:

Lailow 1.5 (t)5 (SFm)ah )

(5-12) where R=

t mean pipe radius wall thickness flow stress QAE17 REV 8/96

SCE Calc M-DSC-445, Rev 0

Subject:

Flaw Evaluation of ECCS Schedule 10s Piping MGPTC CHIC Sheet 30 of 108 Calculation No.:

AES-C-7384-2 Made by:

RCC Date:

5/14/10 Client:

SCE Checked by:

Date:

Project No.:

CQL 5/14/10

[ AES-10027384-2Q

Title:

Allowable Through-Wall Flaws in ECCS Schedule 10s Piping at SONGS Units 2 & 3 Revision No.:

0 Document Control No.:

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1-2 23 of 101 Gh=

hoop stress due to operating pressure = PoDo/2t Do =

outside pipe diameter SFm = structural factor for membrane stress (C-2622)

Equation 5-12 will be used in this calculation to verify that the allowable flaw length for circumferential flaws will be bounding for axial oriented flaws.

QAE17 REV 8/96

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Subject:

Flaw Evaluation of ECCS Schedule 10s Piping Sheet 31 of 108

£NQ NEER t4G 0 S[INCE U TEHMQLUO Made by:

Date:

Client:

Calculation No.:

AES-C-7384-2 RCC 5/14/10 SCE Checked by:

Date:

Project No.:

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Allowable Through-Wall Flaws in ECCS CQL 5/14/10 AES-10027384-2Q Schedule 10s Piping at SONGS Units 2 & 3 Revision No.:

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0 1-2 24 of 101

6.0 REFERENCES

1 Code Case N-513-2, Evaluation Criteria for Temporary Acceptance of Flaws in Moderate Energy Class 2 or 3 Piping," ASME Section XI, Division 1, Nuclear Code Cases, Supplement 1, (February 20, 2004).

2.

Summary Listing of ECCS Subsystems from SCE, "Walkdown Scope and Resolution Matrix Spreadsheet," Full List 051410.xls, dated May 14, 2010.

3.

ASME Boiler and Pressure Vessel Code,Section XI, "Inservice Inspection of Nuclear Power Plant Components," (2001 Edition, 2002 Addenda)

4.

ANSI Pipe Schedule and Size Standard, ANSI/ASME B36.10M.

5.

ASME Boiler and Pressure Vessel Code,Section II, Part D "Material Properties," (1995 Edition)

6.

Relevant calculations and P&ID references, Email from N. EI-Akily (SCE) to R. Cipolla (Intertek APTECH) dated May 10, 2010.

a)

Calculation M-1204-003-02A, Rev 8, Suction Side of Safety Injection Pumps b)

Calculation M-1204-003-03A, Rev 5, Suction Side of Safety Injection Pumps c)

Calculation M-1204-003-AA, Rev 7, Penetration 55 Containment Emergency Sump Recirculation d)

Calculation M-1204-008-02A, Rev 0,. HPSI Pump -Temporary Piping for ISI Testing e)

Calculation M-1204-002-02A, Rev 9, Safety Injection Lines from P-13, P-16, P-18 and P-19 to T-6 f)

Calculation M-1204-002-03A, Rev 5, Suction Side of Safety Injection System g)

Calculation M-1204-004-AA, Rev 9, Penetration 54 Containment Emergency Sump Recirculation h)

Calculation M-1219-072-AA, Rev 3, Refueling Water Storage Tank T-006 3" Drain 1219-072-3"-C-LLO i)

Calculation M-1219-068-AA, Rev 3, Refueling Water Storage Tank Crosstie Tank T-005 and T-006 j)

Calculation M-1 204-151 -AA, Rev 8, Mini-flow from & to HPSI LPSI Pumps in SEB k)

Calculation. M-1204-080-AA, Rev 5, Line 079 to Line 107 and to Refueling Water Storage Tank T-005 I)

Calculation M-1219-057-02A, Rev 6, Line 057 from Refueling Water Storage Tank T-006 P02449-2453 m)

Calculation M-1219-057-AA, Rev 4, Refueling Water Tank to Charging Pumps Line NO 1219-057 n)

Calculation M-1219-057-04A, Rev 5, Refuel Water Tank to Charging Pumps - Unit 2 o)

Calculation M-1208-007-02A, Rev 7, AUX BLDG Acid Pump (Suction) p)

Calculation M-1218-037-02A, Rev 2, Boric Acid Make-up Pump Disch to Vol Control Tank Charging Pump + Suction Header -Unit 2 q)

Calculation M-1219-057-03A, Rev 7, Refueling Water Tank to Charging Pumps r)

Calculation M-1208-007-03A, Rev 5, Volume Control Tank T077 to Charging Pump Suction s)

Calculation M-1218-037-03A, Rev 3, Boric Acid Make-up Pump Disch to Vol Control Tank Charging Pump + Suction Header QAE17 REV 8/96

SCE Calc M-DSC-445, Rev 0

Subject:

Flaw Evaluation of ECCS Schedule 10s Piping MM I

a ECHkI ENGINEERING 0 SVNCE 0 TECHNOLOGY' Sheet 32 of 108 Made by:

Date:

Client:

Calculation No.:

AES-C-7384-2 RCC 5/14/10 SCE Checked by:

Date:

Project No.:

Title:

Allowable Through-Wall Flaws in ECCS CQL 5/14/10 AES-10027384-2Q Schedule 1Os Piping at SONGS Units 2 & 3 Revision No.:

Document Control No.:

Page No.:

0 1-2 25 of 101 t)

Calculation M-1219-066-AA, Rev 3, P-011 + Refueling Water Storage Tank T-006 to Spent Fuel Pool Make Pump u)

P&ID 40112A, Rev 35, Safety Injection System - System No. 1204 v)

P&ID 40112AS03, Rev 38, Safety Injection System - System No. 1204 w)

P&ID 40122B, Rev 26, Fuel Pool Cooling System - System No. 1219 x)

P&ID 40122BS03, Rev 21, Fuel Pool Cooling System - System No. 1219 y)

P&ID 401128, Rev 36, Safety Injection System - System No. 1204 z)

P&ID 40112BS03, Rev 37, Safety Injection System - System No. 1204 aa)

P&ID 40114A, Rev 15, Containment Spray System - System No. 1206 bb)

P&ID 40114AS03, Rev 15, Containment Spray System - System No. 1206 cc)

P&ID 40114D, Rev 20, Containment Spray System - System No. 1206 dd)

P&ID 40114DS03, Rev 19, Containment Spray System - System No. 1206

7.

Letter from N. EI-Akily (SCE) to R. Cipolla (Intertek APTECH), design inputs and stress summary tables 13 attachments (May 11, 2010)

8.

Email from N. EI-Akily (SCE) to R. Cipolla (Intertek APTECH) "P&ID Files," (May 11,2010)

9.

ASME Boiler and Pressure Vessel Code,Section III, Subsection NC, "Class III Components,"

(1977 Edition).

10.

Technical discussions with N. EI-Akily (SCE) regarding bounding stress values for 24 NPS pipe in Line 1204ML004 for ECCS Train B, meeting at SCE facilities (April 9, 2010).

QAE17 REV 8/96

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Subject:

Flaw Evaluation of ECCS Schedule 10s Piping Sheet 33 of 108 ElNGINEEMNO13 0

1E I

0 TECHNOLOGY Made by:

Date:

Client:

Calculation No.:

AES-C-7384-2, RCC 5/14/10 SCE Checked by:

Date:

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Allowable Through-Wall Flaws in ECCS CQL 5/14/10 AES-10027384-2Q Schedule 10s Piping at SONGS Units 2 & 3 Revision No.:

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0 1-2 26 of 101 7.0 NOMENCLATURE A

Cross-sectional area, in.2 1p Angle to the neutral axis of flawed piped, radians Di Inside diameter, in.

D, Outside diameter, in.

i Stress intensification factor (SIF)

-allow Allowable through-wall flaw length (also as Laiiow), in.

MA Resultant moment due to DW and other sustained loads, in-lbs MB Resultant moment due to occasional loads such as thrusts, safety valve loads, earthquake, etc.,.in-lbs Mc Resultant moment due to thermal expansion including moment effects from seismic anchor movements if anchor displacement effects were omitted from Eq: 9, in-lbs P

Pressure, psi PD Design pressure, psi Pm Primary Membrane Stress, psi P"

Operating pressure, psi R

Mean radius, in Cyb Bending stress (also SIGB), psi Gf Material flow stress (also SIGF), psi Gb Critical bending stress, psi GbEFF Effective bending stress, which includes structural and analysis factors (also SIGBEFF), psi amc Critical membrane stress, psi Ge Thermal expansion stress including SAM (also SIGE), psi Gm Membrane stress (also SIGM), psi Sc Allowable primary bending stress, psi SFb Structural factor on bending stress.

SFm Structural factor on membrane stress SY Specified minimum yield stress, psi S,,

Specified minimum tensile stress, psi St Allowable primary membrane stress, psi TD Design temperature, (TF)

To)

Operating temperature, (TF) t Wall thickness, in.

0 alow Allowable flaw half-angle, radians QAE17 REV 8/96

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Flaw Evaluation of ECCS Schedule 10s Piping Sheet 34 of 108 HP T 9C H Made by:

Date:

Client:

Calculation No.:

AES-C-7384-2 RCC 5/14/10 SCE Checked by:

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Allowable Through-Wall Flaws in ECCS CQL 5/14/10 AES-10027384-2Q Schedule 10s Piping at SONGS Units 2 & 3 Revision No.:

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0 1-2 27 of 101 Z

Load multiplier on stress Zc Section modulus, in.

Acronyms CS Containment spray CVCS Chemical and volume control system DBE Design basis earthquake DW Dead weight (contains SIF)

DW*

Dead weight (with SIF removed)

ECCS Emergency core cooling system EPFM Elastic-plastic fracture mechanics HPSI High pressure safety injection LL Limit load LPSI Low pressure safety injection NPS Nominal pipe size OBE Operating basis earthquake OD Outside diameter P&ID Piping and instrumentation diagrams RWST Refueling water storage tank SAM Seismic anchor movements SFP Spent fuel pool SIF Stress intensification factor (same as "i")

QAE17 REV 8/96

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Subject:

Flaw Evaluation of ECCS Schedule 10s Piping SNPTECHD 0

FNVIN EERIN*GQ 0 SVENE 0l TECHRIOLOW Sheet 35 of 108 Made by:

Date:

Client:

Calculation No.:

AES-C-7384-2 RCC 5/14/10 SCE Checked by:

Date:

Project No.:

Title:

Allowable Through-Wall Flaws in ECCS CQL 5/14/10 AES-10027384-2Q Schedule 10s Piping at SONGS Units 2 & 3 Revision No.:

Document Control No.:

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0 1-2 28 of 101 8.0 CALCULATIONS 8.1 Evaluation Overview The calculations involve two different evaluations that may be used for accepting flaws detected in the ECCS piping. Either evaluation can be used with bounding stress inputs, or location specific stress inputs, to determine allowable stresses or flaw lengths. The first evaluation establishes generic plots that define the effective bending stress versus OD flaw length for pipe sizes from 2.5 NPS to 24 NPS (Section 8.2). This evaluation permits the assessment of flaws observed at a specific location in graphical format where the stresses at the flaw location can be determined from the piping stress analysis. The second evaluation establishes the allowable flaw length for a given set of stresses by direct calculation (Section 8.3). Again, the stress input can be location-specific stress values or bounding values.

The calculation of allowable lengths is for circumferential flaws. Under most situations, the allowable lengths for circumferential flaws will bound the axial oriented flaws. A separate calculation given in Section 8.4 provides the allowable lengths for axial TW flaws.

The list of ECCS piping covered by this calculation is given in Table 1-1. Appendix A provides the stress summaries and allowable circumferential flaw lengths from the bounding stress evaluation described in Section 8.3. Appendix B provides the P & IDs for the systems.

8.2 Allowable Effective Bending Stress A calculation was performed for the pipe sizes in the ECCS to develop a graphical solution of effective bending stress versus flaw length for circumferentially oriented flaws. The effective bending stress is computed from Eqs. 5-3 and 5-4 for a bounding internal pressure of 110 psi and a bounding operating temperature of 275 OF. The results in graphical form are shown in Figure 8-1. An alternate set of curves are given in Figure 8.2 which are results normalized in both stress and TW flaw length. The normalized results for 24 NPS can be used to bound all pipe sizes less than 24 NPS.

The effective bending stress is defined by Eq. 5-2 whereby for butt welds fabricated from SAW or SMAW process T EF

= ZSFb [Um +Cb + Sr o 7 (8-1) b SFb SFm and for TIG welds and wrought pipe, F SFb UEFb SFb [U Srn Urn-*-*m*

(8-2)

QAE17 REV 8/96

SCE Caic M-DSC-445, Rev 0

Subject:

Flaw Evaluation of ECOS Schedule 10s Piping Sheet 36 of 108 ENGINEERING U SCMHCE a3 TiVHKQLQ" Made by:

Date:

Client:

Calculation No.:

AES-C-7384-2 RCC 5/14/10 SCE Checked by:

Date:

Project No.:

Title:

Allowable Through-Wall Flaws in ECCS CQL 5/14/10 AES-10027384-2Q Schedule 10s Piping at SONGS Units 2 & 3 Revision No.:

Document Control No.:

Page No.:

0 1-2 29 of 101

where, UbEFF is the effective bending stress at the flaw location am is the axial membrane stress at the flaw location due to actual operating pressure ab is the primary bending stress at the flaw location for upset or faulted conditions oe is the expansion stress at the flaw location for upset or faulted conditions SFm and SFb are the structural factors defined in Table 5-1 Z is the Z factor multiplier defined in Section 5.1.1 When a bounding stress approach is used, the stress values for am, Gb, and Ge shall be the bounding stresses for the pipe under evaluation.

To apply either Figure 8-1 or Figure 8-2 to evaluate NDE data, the effective bending stress is computed from either Eq. 8-1 or 8-2 as appropriate. The value of GbEFF, or Gb FF/af is then plotted with the NDE length, L or L/nDo and compared with the allowable curve. The following procedure can be used:

1) Determine a conservative length of the flaw from the NDE data

2) For the location of the flaw, obtain the stress information from the design report (i.e., Eq. 8, 9U, 9F, and 10 code stresses).

3) If the flaw is associated with the pipe butt weld, determine the weld process used (SAW/SMAW or TIG). If this information is not available, assume the weld is SAW/SMAW.

4) Calculate the stress values for am, (b, and ae from the equations in Section 5.3. It'is acceptable to use the actual operating pressure for the system in calculating am.

5) From the stresses in Item 3), calculate the effective bending stress, GbEFF from either Eq. 8-1 or 8-2 depending on weld process.

6) Compare abEFF for the measure flaw length with Figure 8-1. Figure 8-2 can be use if abEFF and lengths are normalized to flow stress.

The detected flaw is acceptable if the plotted results fall below the allowable curve in Figure 8-1 or 8-2 for the given pipe size.

QAE17 REV 8/96

SCE Calc M-DSC-445, Rev 0

Subject:

Flaw Evaluation of ECCS Schedule 10s Piping Sheet 37 of 108 "WN MX~G 0 SCIENC~E 1 TECHNLOGY Made bv:

Date:

Client:

Calculation No.:

AES-C-7384-2 RCC 5/14/10 SCE Checked by:

Date:

Project No.:

Title:

Allowable Through-Wall Flaws in Eccs CQL 5/14/10 AES-10027384-2Q Schedule 10s Piping at SONGS Units 2 & 3 Revision No.:

Document Control No.:

Page No.:

0 1-2 30 of 101 Allowable Pipe Bending Stress, (P, = 110 psi) 60 55 50 45 40 u; 35 CD' S25 S20 W

o15 1 0 6

0l 5

0

-e-NPS 2.5 NPS 3

-T-NPS 4

--- NPS 6

• ___-0---NPS 8 9G-NPS 10 E3--NPS 14 6 ~NIPS 16

-*-NýPS ý24 QAEI7 REV 8/96 0

5 10 15 20 25 30 35 40 45 50 55 6C TW Flaw Length, L,11w (inches) igure 8 Allowable Effective Bending Stress as a Function of Flaw Length F

QAE17 REV 8/96

SCE Calc M-DSC-445, Rev 0

Subject:

Flaw Evaluation of ECCS Schedule 10s Piping E

SCIPECE CN Sheet 38 of 108 Made by:

Date:

Client:

Calculation No.:

AES-C-7384-2 RCC 5/14/10 SCE Checked by:

Date:

Project No.:

Title:

Allowable Through-Wall Flaws in ECCS CQL 5/14/10 AES-10027384-2Q Schedule 10s Piping at SONGS Units 2 & 3 Revision No.:

Document Control No.:

Page No.:

0 1-2 31 of 101 Allowable Pipe Bending Stress, (P, = 110 psi) 1.4 u

1.3 NPS 2.5 -

t, 0

--0-- NPS 3 1.2

1.

NPS 4 0

I-

-NPS 6

Fn 1.0 NPS 8 N

I 9

NPS 10 0.9

-B--NPS 14 0.8--6 NPS 16 0.7 NPS 24 0.6 0.5 0.4

&. 0.3 E 0.2 z

0.1 0.0 0.00 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.40 0.45 0.50- 0.55 0.60 0.65 0.70 0.75 0.80 Normalized TW Flaw Length, L/OD Perimeter Figure 8 Allowable Normalized Effective Bending Stress as a Function of Normalized Flaw Length QAEI 7 REV 8/96

SCE Calc M-DSC-445, Rev 0

Subject:

Flaw Evaluation of ECCS Schedule 10s Piping PNVINEERING a *C;I*4C 11 nCHNRLOMY Sheet 39 of 108 Made by:

Date:

Client:

Calculation No.:

AES-C-7384-2 RCC 5/14/10 SCE Checked by:

Date:

Project No.:

Title:

Allowable Through-Wall Flaws in ECCS CQL 5/14/10 AES-10027384-2Q Schedule lOs Piping at SONGS Units 2 & 3 Revision No.:

Document Control No.:

Page No.:

0 1-2 32 of 101 Figures 8-1 and 8-2 are for the combined membrane plus bending stress criteria. The membrane stress criteria were evaluated separately by calculation. Equations 5-7 and 5-8 were solved in an iterative manner to obtain the allowable TW length for the membrane stress requirement:

a f [1-0/=I-2(I/T]= PmIoperating Orn ZSFM (1 = sin-1 (0.5 sin 0)

The solution of the above equations was performed with "Solver" in an Excel spreadsheet analysis. The results for allowable length for the limiting upset condition are given in Table 8-1.:

Table 8-1 Summary of Allowable Circumferential Through-Wall Lengths Membrane Stress Criteria SAW and SMAW 1[

TIG & Wrought (2)

Pipe Size OD allow

% OD

-oallow

% OD (NPS)

(in)

(in Circum (in)

Circum 2.5 2.875 6.20 68.7%

6.43 71.2%

3 3.5 7.29 66.3%

7.60 69.1%

4 4.5 8.93 63.2%

9.36 66.2%

.......6

........ 6..* 2

-2:

5 9.2.,...

3 :.6.........................

o.....

8...........

6..

2.............

......5......

.__ _..5 0.............

.*.:.4 10 10.75 18.42 54.5%

19.94 59.1%

14 14.00 22.78 51.8%

25.14 57.1%

16 16.00 24.74 49.2%

27.72 55.2%

24 24.00 34.53 45.8%

40.17 53.3%

Notes:

1)

Pipe butt welds from submerged arc (SAW) or shielded metal arc (SMAW) process.

2)

Pipe butt welds from tungsten inert gas (TIG) or wrought pipe.

In summary, the detected flaw can not exceed the TW lengths determined from Figure 8-1 or 8-2 for combined stress, and the TW lengths in Table 8-1 for membrane stress criteria. When determining the allowable TW length, the smallest calculated length from either the combined stress criteria as applied to upset and faulted loading conditions or membrane stress criteria defines the allowable length.

QAE17 REV 8/96

SCE Calc M-DSC-445, Rev 0

Subject:

Flaw Evaluation of ECCS Schedule 10s Piping A PTECHIL E*NGMNIEERM0 0* SC;tiIENC 0 TECHKOQLM Sheet 40 of 108 Made by:

Date:

Client:

Calculation No.:

AES-C-7384-2 RCC 5/14/10 SCE Checked by:

Date:

Project No.:

Title:

Allowable Through-Wall Flaws in ECCS CQL 5/14/10 AES-10027384-2Q Schedule 10s Piping at SONGS Units 2 & 3 Revision No.:

Document Control No.:

Page No.:

0 1-2 33 of 101 8.3 Allowable Circumferential Flaw Lengths A bounding calculation was performed for the pipe sizes in the ECCS. The bounding method uses the highest calculated stresses for each pipe size for a given subsystem or pipe run. The stresses envelop the piping nodal stresses, i.e., the Eqs. 8, 9U, 9F and 10 stress values are taken from the highest stress locations in each stress category and combined for evaluation purposes. Appendix A contains the stress summary and the determination of the bounding (maximum enveloping) stresses for am (operating), ab (upset), Gb (faulted) and expansion (Ge). The procedure for computing am, 9b (upset and faulted) and Ge is provided in Section 5.3. The 27 piping items listed in Table 1-1 were group into 13 calculation packages.

These calculations are given in Sections A.2 through A.14 in Appendix A.

The calculations for -a,,o, were performed by spreadsheet analysis using MS Excel. The iterative solutions for Eqs. 5-2, 5-3, and 5-4 for combined loading criteria, and Eqs. 5-7 and 5-8 for membrane criteria, were obtained using the "Solver" feature in Excel. The allowable TW circumferential length is the smallest calculated length from either the combined stress criteria or membrane stress criteria as applied to upset and faulted loading conditions. The results from the analysis are given in the appendices by pipe size for each ECCS subsystem.

8.4 Allowable Axial Flaw Lengths The allowable axial TW flaw lengths were computed for each pipe size in the ECCS. Equation 5-12 was used to determine the lengths for the maximum operating pressure of 110 psi and the highest operating temperature of 2750F. The results of the calculation are given in Table 8-2.

Table 8-2 Summary of Allowable Axial Through-Wall Lengths (P. = 110 psi, To = 275°F)

Pipe Size OD t

fallow (NPS)

(in)

(in)

(in) 2.5 2.875 0.120 9.16 3

3.5 0.120 8.32 4

4-5 0.120 7.35 6

6.625 0.134 7.14 8

8.625 0.148 7.25 10 10.75 0.165 7.62 14 14.00 0,188 8.08 16 16.00 0.188 7.51 24 24.00 0.250 9.32 QAE17 REV 8/96

SCE Calc M-DSC-445, Rev 0

Subject:

Flaw Evaluation of ECCS Schedule 10s Piping Sheet 41 of 108 URJ e PTECH[QLV E.NGINEEFUNG 2 SIE*tNC E 13 1ECHKOLOGY Made by:

Date:

Client:

Calculation No.:

AES-C-7384-2 RCC 5/14/10 SCE Checked by:

Date:

Project No.:

Title:

Allowable Through-Wall Flaws in ECCS CQL 5/14/10 AES-10027384-2Q Schedule 10s Piping at SONGS Units 2 & 3 Revision No.:

Document Control No.:

Page No.:

0 1-2 34 of 101 Appendix A Evaluation for Allowable Flaw Lengths for ECCS Schedule 10s Piping A.1 Introduction The allowable flaw lengths for the ECCS and related systems are determined in this appendix. The stresses for use in the flaw evaluation for upset and faulted loading conditions are determined from the code equations as discussed in Section 5.0. Stress values were extracted from the design stress reports.

The P & IDs and associated calculation numbers are given in Appendix B.

Table Al-1 provides the details for each of the 27 subsystems and includes line numbers, section description as defined in the P & IDs, operating pressure and temperature, nominal pipe size and whether the line is a high or moderate energy. The 27 subsystems are grouped in 13 calculation packages, which are given in Sections A.2 through A. 14. The groups were constructed according to common systems, pipe sizes, and design conditions, as determined from the SCE stress summaries. The appendix sections where the calculation results are given are given in the last column of Table Al-1.

Bounding stresses (i.e., maximum envelop values) were used in the calculation for allowable through wall (TW) flaw lengths. The allowable flaw length results are given in tabular format by pipe size for the different systems and subsystems. The stress summaries used in the evaluations to establish the bounding stress values by pipe size and/or subsystem are also tabulated in each appendix section.

Table Al -2 gives the summary of the calculated allowable TW flaw lengths based on the bounding stresses determined from the design stress summaries. In all calculations, a boundary temperature of 2750F was conservatively assumed, regardless of the actual operating temperature, in determining the yield and ultimate strength for the pipe.

A listing of references providing the calculation numbers from which the stresses were extracted is given in Table A1-3.

QAE17 REV 8/96

SCE Calc M-DSC-445, Rev 0

Subject:

Flaw Evaluation of ECCS Schedule 10s Piping ENGIEN 0 SC IEN~fCE L0 TECHSOLOOY Sheet 42 of 108 Made by:

Date:

Client:

Calculation No.:

AES-C-7384-2 RCC 5/14/10 SCE Checked by:

Date:

Project No.:

Title:

Allowable Through-Wall Flaws in ECCS COL 5/14/10 AES-10027384-2Q Schedule 10s Piping at SONGS Units 2 & 3 Revision No.:

Document Control No.:

Page No.:

0 1-2 35 of 101 Table Al-I Summary of ECCS Subsystem Descriptions and Analysis Index Pipe High PL TO Sizes Energy Appendix Subsystem Line Section Description (psig)

(OF)

(NPS)

Line Section I

RWST 1204ML001 Between T005 & HV9300 15 AMB 24 No A.2 2

ALL TRAIN A 1204ML001 Between HV9300 & MU001 15 AMB 24 No 3

ALL TRAIN A 1204ML108/003/

Bounded by Valves MU001, 3

MU003, MU007, MU010, 110 225 24110/16 Yes A.3 00____/009____and MU062 4

HPSI TRAIN A 1204ML007 Between MU007 & P017 110 225 8

Yes A.4 5

HPSl COMMON 1204ML009 Between MU010, MU01 1 110 225 8

Yes A.5 and P018 6

ALL TRAIN A 1204ML003 Between MU003 & HV9303 110 225 24 Yes Between HV9303 &

A.6 7

ALL TRAIN A 1204ML003 Bergen Sump 110 225 24 Yes

____________ _____________Emergency Sump 8

LPSI TRAIN A 1204ML032 Between "TPof Line ML003435350 14

[Note 1]

and P0 15______________

9 CS TRAIN A 1204ML003 Between MU062 & P012 110 225 16/14 Yes A.3 10 RWST 1219ML073 Between T005 & MU075 15 AMB 3

No A.7 11 RWST 1204ML002 Between T006 & HV9301 15 AMB 24 No A.8 12 ALL TRAIN B 1204ML002 Between HV9301 & MU002 15 AMB 24 No 1204ML109/004/

Bounded by Valves MU002, 13 ALL TRAIN B MU004, MU009, MU011, 110 225 24/10/16 Yes A.9 031/008/010 MU005, and MU199 14 HPSI TRAIN B 1204ML008 Between MU009 and P019 110 225 8

Yes A.5 15 ALL TRAIN B 1204ML004 Between MU004 & HV9302 110 225 24 Yes A.10 16 ALL TRAIN B 1204ML004 Between HV9302 and 110 225 24 Yes Emergency Sump 17 LPSI TRAIN B 1204ML033 Between MU199 and P016 14 Yes

[Note 1]

18 CS TRAIN B 1204ML004 Between MU005 & P013 110 225 16/14 Yes A.9 19 RWST 1219ML072 Between T006 & MU074 15 AMB 3

No A.7 20 RWST 1219ML068 RWST Crosstie 15 AMB 24 No A.11 21 MINIFLOW 1204ML131 Between HV9347 & mini 50 275 4

Yes flow tie 22 MINIFLOW 1204ML151 Between HV9306 and 50 275 4

Yes miniflow tie 23 MINIFLOW 1204ML180 Between PSV9308 and 50 275 2.5 Yes A.12 miniflow tie 24 MINIFLOW 1204ML080 Between Valves MU060 &

50 275 6

Yes MU068 25 MINIFLOW 1219ML107 Between Valve MU068 and 15 AMB 10 No T005 26 RWST 1219ML057 Between T006 and MU067 15 AMB 6

No A.13 (gravity feed to charging) 27 RWST 1219ML066 Between T006 and MU070 15 AMB 4/3 No A-14 (to SFP make up pump)

Note I -

Items 8 and 17 are Schedule 20 and are not evaluated QAE17 REV 8/96

SCE Calc M-DSC-445, Rev 0

Subject:

Flaw Evaluation of ECCS Schedule 10s Piping N PTECHI ENGIN EERINa IS SCIENCE 0 TECHflOLOQY Sheet 43 of 108 I

T Calculation No.:

AES-C-7384-2

Title:

Allowable Through-Wall Flaws in ECCS Schedule 10s Piping at SONGS Units 2 & 3 Made by:

RCC Date:

5/14/10 Client:

SCE Checked by:

Date:

Project No.:

CQL 5/14/10 1

AES-10027384-20 Revision No.:

0 Document Control No.:

Page No.:

1-2 36 of 101 Table A1-2 Summary of Allowable Flaw Length Results Allowable Flaw Length eaiiow (in)

Pipe High SAW Section Size Energy and TIG and Appendix I Subsystem Line Description (NPS)

Line SMAW Wrought Section 1

RWST 1204ML001 Between T005 and 24 No 8.83 36.9 HV9300 A.2 2

ALL TRAIN A 1204ML001 Between HV9300 and 24 No 8.83 36.9 MU001 Bounded by Valves

.10 Yes 15.19 18.70 3

ALL TRAIN A 1204ML108/003 MU001, MU003, 16 Yes 15.97 22.95 A.3

/007/009 MU007, MU010, and MU062 24 Yes 24.38 36.47 4

HPSI TRAIN A 1204ML007 Between MU007 and 8

Yes 12.41 15.53 A.4 P017 5

HPSI COMMON 1204ML009 Between MU010, 8

Yes 2.94 7.12 A.5 MU011 and P018 6

ALL TRAIN A 1204ML003 Between MU003 and 24 Yes 11.17 34.79 HV9303 A.6 7

ALL TRAIN A 1204ML003 Between HV9303 and 24 Yes 11.17 34.79 Emergency Sump 8

LPSI TRAIN A 1204ML032 Between "T" of Line 14 Evaluation not required. [Note 1].

ML003 and P015 Between MU062 and 14 Yes

[Note 2]

[Note 2]

9 CS TRAIN A 1204ML003 A.3 P012 16 Yes 15.97 22.95 10 RWST 1219ML073 Between T005 and 3

No 7.89 8.36 A.7 MU075 11 RWST 1204ML002 Between T006 and 24 No 17.22 33.01 HV9301 A.8 12 ALL TRAIN B 1204ML002 Between HV9301 and 24 No 17.22 33.01 MU002 Bounded by Valves 10 Yes 13.03 16.65 13 ALL TRAIN B 1204ML109/004/

MU002, MU004, 16 Yes 19.20 25.53 A.9 031/008/010 MU009, MU01 1, MU005, and MU199 24 Yes 17.22 33.01 A.8 14 HPSI TRAIN B 1204ML008 Between MU009 and 8

Yes 2.94 7.12 A.5 P019 15 ALL TRAIN B 1204ML004 Between MU004 and 24 Yes 6.87 21.06 HV9302 A.10 16 ALL TRAIN B 1204ML004 Between HV9302 and 24 Yes 6.87 21.06 Emergency Sump 17 LPSI TRAIN B 1204ML033 Between MU199 &

14 Evaluation not required. [Note 1].

P016 18 CS TRAIN B 1204ML004 Between MU005 and 14 Yes

[Note 2]

[Note 2]

A.9 P013 16 Yes 19.20 25.53 19 RWST 1219ML072 Between T006 and 3

No 7.91 8.37 A.7 MU074 QAEI7 REV 8/96

SCE Calc M-DSC-445, Rev 0

Subject:

Flaw Evaluation of ECCS Schedule 10s Piping E

S TECHNOLOGY Sheet 44 of 108 Made by:

Date:

Client:

Calculation No.:

AES-C-7384-2 RCC 5/14/10 SCE Checked by:

Date:

Project No.:

Title:

Allowable Through-Wall Flaws in ECCS CQL 5/14/10 AES-10027384-2Q Schedule 10s Piping at SONGS Units 2 & 3 Revision No.:

Document Control No.:

Page No.:

0 1-2 37 of 101 Table Al-2 Summary of Allowable Flaw Length Results (Cont'd)

Allowable Flaw Length tPallow (in)

Pipe High SAW TIG Section Size Energy and and Appendix Subsystem Line Description (NPS)

Line SMAW Wrought Section*

20 RWST 1219ML068 RWST Crosstie 24 No 41.38 50.79 A.11 21 MINIFLOW 1204ML131 Between HV9347 and 4

Yes 5.88 7.50 mini flow tie 22 MINIFLOW 1204ML151 Between HV9306 and 4

Yes 3.68' 6.14 mini flow tie 23 MINIFLOW 1204ML180 Between PSV9308 and 2.5 Yes 1.65 2.98 A.12 mini flow tie 24 MINIFLOW 1204ML080 Between Valves 6

Yes 2.60 8.49 MU060 & MU068 25 MINIFLOW 1219ML107 Between Valves 10 No 10.39 16.0 MU068 and T005 Between T006 and 26 RWST 1219ML057 MU067 (gravity feed to 6

No 6.97 14.06 A.13 charging)

Between T006 and 3

No 5.06 5.68 27 RWST 1219ML066 MU070 (to SFP make A. 14 up pump) 4 No 4.89 8.02 Notes:

1)

Items 8 and 17 are high energy lines but were not evaluated because piping is Schedule 20.

2)

The 14 NPS piping in CS Trains A and B (Items 9 and 18) are Schedule 20 and therefore were not evaluated.

QAE17 REV 8/96

SCE Calc M-DSC-445, Rev 0

Subject:

Flaw Evaluation of ECCS Schedule 10s. Piping Sheet 45 of 108 RPTIHI' EGNOEFRINr e SCIENCE OTEUMt{LOG Made by:

Date:

Client:

Calculation No.:

AES-C-7384-2 RCC 5/14/10 SCE Checked by:

Date:

Project No.:

Title:

Allowable Through-Wall Flaws in ECCS CQL 5/14/10 AES-10027384-2Q Schedule 10s Piping at SONGS Units 2 & 3 Revision No.:

Document Control No.:

Page No.:

0 1-2 38 of 101 Table A1-3 Summary of Stress Calculation References

1)

Calculation M-1204-003-02A, Rev 8, Suction Side of Safety Injection Pumps

2)

Calculation M-1204-003-03A, Rev 5, Suction Side of Safety Injection Pumps

3)

Calculation M-1204-003-AA, Rev 7, Penetration 55 Containment Emergency Sump Recirculation

4)

Calculation M-1204-008-02A, Rev 0, HPSI Pump -Temporary Piping for ISI Testing

5)

Calculation M-1204-002-02A, Rev 9, Safety Injection Lines from P-13, PA16; P-18 and-P-19 to T-6

6)

Calculation M-1204-002-03A, Rev 5, Suction Side of Safety Injection System

7)

Calculation M-1204-004-AA, Rev 9, Penetration 54 Containment Emergency Sump Recirculation

8)

Calculation M-1219-072-AA, Rev 3, Refueling Water Storage Tank T-006 3" Drain 1219-072-3"-C-LLO

9)

Calculation M-1219-068-AA, Rev 3, Refueling Water Storage Tank Crosstie Tank T-005 and T-006

10)

Calculation M-1204-151-AA, Rev 8, Mini-flow from & to HPSI LPSI Pumps in SEB

11)

Calculation M-1204-080-AA, Rev 5, Line 079 to Line 107 and to Refueling Water Storage Tank T-005

12)

Calculation M-1219-057-02A, Rev 6, Line 057 from Refueling Water Storage Tank T-006 P02449-2453

13)

Calculation M-1219-057-AA, Rev 4, Refueling Water Tank to Charging Pumps Line NO 1219-057

14)

Calculation M-1219-057-04A, Rev 5, Refuel Water Tank to Charging Pumps - Unit 2

15)

Calculation M-1208-007-02A, Rev 7, AUX BLDG Acid Pump (Suction)

16)

Calculation M-1218-037-02A, Rev 2, Boric Acid Make-up Pump Disch to Vol Control Tank Charging Pump + Suction Header -Unit 2

17)

Calculation M-1219-057-03A, Rev 7, Refueling Water Tank to Charging Pumps

18)

Calculation M-1208-007-03A, Rev 5, Volume Control Tank T077 to Charging Pump Suction

19)

Calculation M-1 218-037-03A, Rev 3, Boric Acid Make-up Pump Disch to Vol Control Tank Charging Pump + Suction Header

20)

Calculation M-1 219-066-AA, Rev 3, P-011 + Refueling Water Storage Tank T-006 to Spent Fuel Pool Make Pump QAE17 REV 8/96

SCE Calc M-DSC-445, Rev 0

Subject:

Flaw Evaluation of ECCS Schedule 10s Piping E NGINERING 0 SCINCE 0l TECHNOLOGY Sheet 46 of 108 Made by:

Date:

Client:

Calculation No.:

AES-C-7384-2 RCC 5/14/10 SCE Checked by:

Date:

Project No.:

Title:

Allowable Through-Wall Flaws in ECCS COL 5/14/10 AES-10027384-2Q Schedule 10s Piping at SONGS Units 2 & 3 Revision No.:

Document Control No.:

Page No.:

0 1-2 39 of 101 A.2 ECCS RWST and All Train A (Line 1204ML001)

The allowable flaw lengths for the ECCS RWST between T005 and HV9300 and All Train A between HV9300 and MU001 were calculated in Section A.2. Stress values were extracted from SCE summaries (Ref. 7, Attachment 2). The allowable flaw length results are given in Tables A2-1 and A2-2 for sections between T005 and HV9300 and H9300 and MU001. The stress summaries used in the evaluation are given in Table A2-3 for the 24 NPS Schedule 10s piping.

Two material conditions were evaluated: flux-welded pipe by SAW or SMAW process, and TIG welded and wrought pipe. For pipe butt welds using SAW-or SMAW, thefollowing allowableflaw lengths were determined:

Table A2-1 Summary of Allowable Through-Wall Flaw Length Results RWST between T005 and HV9300 and All Train A between H9300 and MU001 (SAW and SMAW)

AllowableT Combined Membrane AllLength Stress Stress Length Pipe OD Loading Criteria Criteria aiow.

% OD Limiting Line Size (in)

Condition i

(in)

Circum.

Condition 1204ML001 24 24.00 Upset 13.08 50.28 8.83 11.7%

Faulted Faulted 8.83 54.83 For TIG welds and wrought pipe, the following allowable flaw lengths were determined:

Table A2-2 Summary of Allowable Through-Wall Flaw Length Results RWST between T005 and HV9300 and All Train A between H9300 and MU001 (TIG and Wrought)

T

~AllowableI Combined Membrane Length Stress Stress Length Pipe OD Loading Criteria Criteria tallow

% OD Limiting Line Size (in)

Condition (in)

(in)

(in)

Circum.

Condition 1204ML001 24 24.0 Upset 41.41 53.67 36.90 48.9%

Faulted Faulted 36.90 57.61 QAE17 REV 8/96

SCE Calc M-DSC-445, Rev 0

Subject:

Flaw Evaluation of ECCS Schedule 10s Piping lAPT ECH]

a 511~hE*M ilNCE 1 TEXIIMLOW Sheet 47 of 108 Made by:

Date:

Client:

Calculation No.:

AES-C-7384-2 RCC 5/14/10 SCE Checked by:

Date:

Project No.:

Title:

Allowable Through-Wall Flaws in ECCS CQL 5/14/10 AES-10027384-2Q Schedule 10s Piping at SONGS Units 2 & 3 Revision No.:

Document Control No.:

Page No.:

0 1-2 40 of 101 Table A2-3A Pipe Design Stress Summary for ECCS Piping - NPS 24 Line 1204ML001 - RWST and Train A Design Operating ASME Section III Code Stresses Pr Pm SIF Eq. 8 Eq. 9U Eq. 9F Eq. 10 DW DBE Node Item (psi)

(psi)

(i)

(Psi)

(psi)

(ps)

(psi)(psi) 160 Pipe 581 581 1.0 1378 2115 2700 15459 797 1322 Elbow 27 (SR) 581 581...

7.384 903.

1509, 1991 36912 322.

1088 160 Pipe 581 581 1.0 1384 2190 2728 17483 803 1344 230 Pipe 581 581 1.0 1492 4295 8866 686 911 7374 27A Elbow 581 581 5.635 743 1426 1962 33055 162 1219 240 Elbow 581 581 5.635 1194 5104 30584 8111

. 613 29390 Notes:

1) Operating pressure and temperature are 15 psi and ambient. The design calculations were done for a design pressure of 25 psi.

2) Seismic OBE stresses are 1/2 the faulted DBE stress values.

Table A2-3B Pipe Design Stress Summary for ECCS Piping - NPS 24 Line 1204ML001 - RWST and Train A Operating Upset Faulted Expansion (3"m DW*

Crb ab ae Node Item (psi)

(psi)

I(psi))

(psi).

• (psi) 160 Pipe 581 797 1534 2119 15459 27 Elbow 581 58 168 255 4999 (SR) 160 Pipe 581 803 1609 2147 17483 230 Pipe 581 911 3714 8285 686 27A Elbow 581 38 200 327 5866 240 Elbow 581 145 1070 7099 1439 Max Envelop (psi) 581 911 3714 8285 17483 QAE17 REV 8/96

SCE Calc M-DSC-445, Rev 0

Subject:

Flaw Evaluation of ECCS Schedule 10s Piping FNGIN EUNG* SCIE/NfC*I TECHNOLOGY Sheet 48 of 108 Made by:

Date:

Client:

Calculation No.:

AES-C-7384-2 RCC 5/14/10 SCE Checked by:

Date:

Project No.:

Title:

Allowable Through-Wall Flaws in ECCS CQL 5/14/10 AES-10027384-2Q Schedule 10s Piping at SONGS Units 2 & 3 Revision No.:

Document Control No.:

Page No.:

0 1-2 41 of 101 A.3 ECCS Train A and CS Train A (Lines 1204ML108/003/0071009)

The allowable flaw lengths for the ECCS Train A and CS Train A piping in sizes NPS 24, 16, and 10 are calculated in Section A.3. Piping that is listed as NPS 14 is not evaluated because it is not Schedule 1Os size.

Stress values were extracted from SCE summaries (Ref. 7, Attachment 2). The allowable flaw length results are given in Tables A3-1 and A3-2. The stress summaries used in the evaluation are given in Tables A3-3 through A3-5 for the 24, 16, and 10 NPS Schedule 1Os piping.

Two material conditions were evaluated: flux-welded pipe by SAW or SMAW process, and TIG welded and wrought pipe. For the butt welds using SAW or SMAW, the following allowable flaw lengths were determined:

Table A3-1 Summary of Allowable Through-Wall Flaw Length Results ECCS Train A Bounded by Valves MU001, MU003, MU007, MU010, and MU062 CS Train A between MU003 and HV9303 (SAW and SMAW)

Allowable Combined Membrane Length Stress Stress Lnt Pipe OD Loading Criteria Criteria eallow

% OD Limiting Line Size (in)

Condition (in)

(in)

(in)

Circum.

Condition

[Note 1]

10 10.75 Upset 15.19 18.41 15.19 45.0%

Upset' Faulted 15.38 21.20

[Note 1) 16 16.00 Upset 15.97 24.74 15.97.

31.8%

Upset Faulted 16.09 29.41

[Note 1]

24 24.00 Upset 24.38 34.53 24.38 32.3%

Upset Faulted 25.40 42.07 Notes:

1) ECCS Train A and CS Train A, Lines 1204ML108, 003, 007, and 009.

QAE17 REV 8/96

SCE Calc M-DSC-445, Rev 0

Subject:

Flaw Evaluation of ECCS Schedule 10s Piping Sheet 49 of 108

%PTECH' CI SI~HENC TECHROLGY Calculation No.:

AES-C-7384-2

Title:

Allowable Through-Wall Flaws in ECCS Schedule 10s Piping at SONGS Units 2 & 3 For TIG welds and wrought pipe, the following allowable flaw lengths were determined:

Table A3-2 Summary of Allowable Through-Wall Flaw Length Results ECCS Train A Bounded by Valves MU001, MU0O3, MU007, MU010, and MU062 CS Train A between MU003 and HV9303 (TIG and Wrought)

T

~Allowable]

Combined Membrane Length Stress Stress Pipe OD Loading Criteria Criteria tealiow

% OD Limiting Line Size in)

Condition (in)

(in)

(in)

Circum.

Condition

[Note 1]

10 10.75 Upset 18.70 19.94 18.70 55.4%

Upset Faulted 18.96 22.44

[Note 1]

16 16.00 Upset 22.95 27.73 22.95 45.7%

Upset Faulted 23.17 31.81

[Note 1) 24 24.00 Upset 36.47 40.17 36.47 48.4%

Upset Faulted 37.60 46.57 Notes:

1) ECCS Train A and CS Train A, Lines 1204ML108, 003, 007, and 009.

QAE17 REV 8/96

SCE Calc M-DSC-445, Rev 0

Subject:

Flaw Evaluation of ECCS Schedule 1 Os Piping 111 PR

TECHI, NI*NG~lEEMNfG 0 $CIENCE B TECHNOLOGY Sheet 50 of 108 Made by:

Date:

Client:

Calculation No.:

AES-C-7384-2 RCC 5/14/10 SCE Checked by:

Date:

Project No.:

Title:

Allowable Through-Wall Flaws in ECCS CQL 5/14/10 AES-10027384-2Q Schedule 10s Piping at SONGS Units 2 & 3 Revision No.:

Document Control No.:

Page No.:

0 1-2 43 of 101 Table A3-3A Pipe Design Stress Summary for ECCS Piping - NPS 10 Various Lines - ECCS Train A and CS Train A ASME Section III Code Stresses Design Operating E[D Pm Pm SIF Eq. 8 Eq. 9U Eq. 9F Eq. 10 DW DBE Node Item (psi)

(psi)

(i)

(psi)

(psi) 28B Pipe 1710 1710 4.646 2362 6886 10433 5981 652 8071 29 Elbow (SR) 1710 1710 5.950 2547

. 8113 12498 7020 837 9951 39 Elbow 1710 1710 4.550 2132 4518 6382 12549 422 4250 41 Tee (run) 1710 1710 3.386 2076 4246 6054 6766 366 3978 Tee (run) 1710 1710 3.386 1968 5490 8274 7239 258 6306 Tee (rc 1710 1710 3.386 1836 6883 10927 5749 126 9091 (branch) 28 Tee 1710 1710 4.646 2457 7634 11948 7245 747 9491 (branch) 35 Pipe 1710 1710 1.0 1905 2909 3767 3023 195 1862 29 Elbow (SR) 1710 1710 5.950 2653 6906 10468 6461 943 7815 39 Elbow 1710 1710 4.550 2175 3671 4868 12078 465 2693 41 Tee (run) 1710 1710 3.386 2446 4008 5203 9219 736 2757 Tee (run) 1710 1710 3.386 2270 4794 6865 9676 560 4595 Tee (rc 1710 1710 3.386 1887 5596 8569 8077 177 6682 (branch) 94 Reducer 1710 1710 2.0 2014 3152 4066 4315 304 2052 Notes:

1) Operating pressure and temperature are 110 psi and 225*F. The design calculations were done for a design pressure of 110 psi.

2)

Seismic OBE stresses are 1/2 the faulted DBE stress values.....

QAEI7 REV 8/96

SCE Calc M-DSC-445, Rev 0

Subject:

Flaw Evaluation of ECCS Schedule 10s Piping ENGINFERNG SCIENCE O TC*ROLQOGY Sheet 51 of 108 Made by:

Date:

Client:

Calculation No.:

AES-C-7384-2 RCC 5/14/10 SCE Checked by:

Date:

Project No.:

Title:

Allowable Through-Wall Flaws in ECCS CQL 5/14/10 AES-10027384-2Q Schedule 10s Piping at SONGS Units 2 & 3 Revision No.:

Document Control No.:

Page No.:

0 1-2 44 of 101 Table A3-3B Pipe Design Stress Summary for ECCS Piping - NPS 10 Various Lines - ECCS Train A and CS Train A Operating Upset Faulted Expansion aTm DW*

Cyb ab C*e Node Item (psi)

(psi)

(psi))

(psi)

(psi) 28B Pipe 1710 187 1485 2503 1287 29 Elbow (SR) 1710 188 1435 2417 1180 39 Elbow 1710 124 823 1369 2758 41 Tee (run) 1710 144 999 1711 1998 Tee (run)

"1710 102 1488 2585 2138 Tee (branch) 1710 50 2037 3629 1698 28 Tee (branch) 1710 214 1700 2938 1559 35 Pipe 1710 195 1199 2057 3023 29 Elbow (SR) 1710 211 1164 1963 1086 39 Elbow 1710 136 575 925 2655 41 Tee (run) 1710 290 905 1375 2723 Tee (run) 1710 221 1214 2030 2858 Tee (branch) 1710 70 1530 2701 2385 94 Reducer 1710 203 961 1571 2158 Max Envelop (psi) 1710 290 2037 3629 3023 QAE17 REV 8/96

SCE Calc M-DSC-445, Rev 0

Subject:

Flaw Evaluation of ECCS Schedule 10s Piping MJP=T1ECH EgNGINFEFUNG 0 SCIENE I tHKOLOGY*

Sheet 52 of 108 Made by:

Date:

Client:

Calculation No.:

AES-C-7384-2 RCC 5/14/10 SCE Checked by:

Date:

Project No.:

Title:

Allowable Through-Wall Flaws in ECCS CQL 5/14/10 AES-10027384-2Q Schedule 10s Piping at SONGS Units 2 & 3 Revision No.:

Document Control No.:

Page No.:

0 1-2 45 of 101 Table A34A Pipe Design Stress Summary for ECCS Piping - NPS 16 Various Lines - ECCS Train A and CS Train A ASME Section III Code Stresses Design Operating Pm Pm SIF Eq. 8 Eq. 9U Eq. 9F Eq. 10 DW DBE Node Item (psi)

(psi)

(i)

(psi)

(psi)

(psi)

(psi)

Jssi)

B10 Pipe 2258 2258 4.646 5001 18156 28896 19099 2743 23895 78 Elbow (SR) 2258 2258 6.810 2846 7811 11845 28313 588 8999 Tee 65 (rc 2258 2258 4.646 3207 9672 14455 9152 949 11248 (branch) 70 Elbow (SR) 2258 2258 6.810 4253 8147 11111 18411 1995 6858 77 Elbow 2258 2258 5.196 2778 11777 18159 15960 520 15381 74 Taper 2258 2258 1.90 2939 5811 7964 3558 681 5025 Notes:

1) Operating pressure and temperature are 110 psi and 225°F. The design calculations were done for a design pressure of 110 psi.

2)

Seismic OBE stresses are 1/2 the faulted DBE stress values.

Table A3-4B Pipe Design Stress Summary for ECCS Piping - NPS 16 Various Lines - ECCS Train A and CS Train A Operating Upset Faulted Expansion am DW*

Gb b T

ae Node Item (psi)

(psi)

(psi))

(psi)

(psi)

B10 Pipe 2258 787 4562 7645 4111 78 Elbow (SR) 2258 115 1087 1877 4158 65 Tee (branch) 2258 272 2128 3500 1970 70 Elbow (SR) 2258 391 1153 1733 2704 77 Elbow 2258 133 2443 4080 3072 74 Taper 2258 478 2493 4004 1873 Max Envelop (psi) 2258 787 4562 7645 4158 QAE17 REV 8/96

SCE Calc M-DSC-445, Rev 0

Subject:

Flaw Evaluation of ECCS Schedule 10s Piping iMARPTECHN'-

E.NGINIFIRING0 SIEN*I~C E O TECHNIOILM Sheet 53 of 108 Made by:

Date:

Client:

Calculation No.:

AES-C-7384-2 RCC 5/14/10 SCE I

Checked by:

Date:

Project No.:

Title:

Allowable Through-Wall Flaws in ECCS CQL 5/14/10 AES-10027384-2Q Schedule 10s Piping at SONGS Units 2 & 3 Revision No.:

Document Control No.:

Page No.:

0 1-2 46 of 101 Table A3-5A Pipe Design Stress Summary for ECCS Piping - NPS 24 Various Lines - ECCS Train A and CS Train A ASME Section III Code Stresses Design Operating I

Pm Pm SIF Eq. 8 Eq. 9U Eq. 9F Eq. 10 DW DBE Node Item (psi)

(psi)

(i)

(psi)

(psi) 16 Pipe 2558 2558 1.0 3333 5646 7534 3388 775 4201 13 Elbow (SR) 2558 2558 7.384 3032 7002 10233 27335 474 7201 12 Tee (run) 2558 2558 4.396 3247 6680 9486 20263 689 6239 Tee (run) 2558 2558 4.396 3133 9216 14163 6412 575 11030 Tee (branch) 2558 2558 4.396 2704 8003 12318 20968 146 9614 28 Tee (run) 2558 2558 4.646 3509 11363 17765 5204 951 14256 Tee (run) 2558 2558 4.646 3451 10851 16884 5933 893 13433 Tee 2558 2558 4,646 2642 3435 4043 1057 84 1401 (branch) 65 Tee (run) 2558 2558 4.646 3730 13273 20964 6313 1172 17234 Tee (run) 2558 2558 4.646 4354 13563 20998 4622 1796 16644 Tee (rc 2558 2558 4.646 3512 9632 14626 7628 954 11114 (branch) 16 Pipe 2558 2558 1.0 3379 4536 5378 3315 821 1999 13 Elbow (SR) 2558 2558 7.384 3251 5591 7353 24297 693 4102 12 Tee (run) 2558 2558 4.396 2968 5159 6806 18516 410 3838 Tee (run) 2558 2558 4.396 2949 6437 9088 5584 391.

. 6139 Tee (rc 2558 2558 4.396 2954 5799 7963 17517 396 5009 (branch) 28 Tee (run) 2558 2558 4.646 3145 7864 11265 5433 587 8120 Tee (run) 2558 2558 4.646 3158 7630 10940 5681 600 7782 Tee (rc 2558 2558 4.646 2642 3435 4043 1057 84 1401 (branch) 65 Tee (run) 2558 2558 4.646 5107 7695 9683 4189 2549 4576 Tee (run) 2558 2558 4.646 5108 7131 8737 6963 2550 3629 Notes:

1)

Operating pressure and temperature are 110 psi and 225°F. The design calculations were done for a design pressure of 110 psi.

2)

Seismic OBE stresses are 1/2 the faulted DBE stress values.

QAE17 REV 8/96

SCE Calc M-DSC-445, Rev 0

Subject:

Flaw Evaluation of ECCS Schedule 1 Os Piping EARPTECHI1 Sheet 54 of 108 Made by:

Date:

Client:

Calculation No.:

AES-C-7384-2 RCC 5/14/10 SCE Checked by:

Date:

Project No.:

Title:

Allowable Through-Wall Flaws in ECCS CQL 5/14/10 AES-10027384-2Q Schedule 10s Piping at SONGS Units 2 & 3 Revision No.:

Document Control No.:

Page No.:

0 1-2 47 of 101 Table A3-5B Pipe Design Stress Summary for ECCS Piping - NPS 24 Various Lines - ECCS Train A and CS Train A Operating Upset Faulted Expansion Oam DW*

ab Cab oae Node Item (psi)

(psi)

(psi))

si(psi) 16 Pipe 2558

-775 3088 4976 3388 13 Elbow (SR) 2558 86 802 1386 3702 12 Tee (run) 2558 209 1250 2101 4609 Tee (run) 2558 174 2019 3520 1459 Tee (branch) 2558 44 1652 2960 4770 28 Tee (run) 2558 273 2527 4364 1120 Tee (run) 2558 256 2380 4111 1277 Tee (branch) 2558 24 252 426 228 65 Tee (run) 2558

• 336 3075 5282 1359 Tee (run) 2558 515 3158 5292 995 Tee (branch) 2558 274 2030 3463 1642 16 Pipe 2558 821 1978 2820 3315 13 Elbow (SR) 2558 125 548 866 3290 12 Tee (run) 2558 124 789 1288 4212 Tee (run) 2558 119 1177 1981 1270 Tee (branch) 2558 120 983 1639 3985 28 Tee (run) 2558 168 1523 2499 1169 Tee (run) 2558 172 1456 2406 1223 65 Tee (run) 2558 732 1474 2045 902 Tee (run) 2558 732 1312 1773 1499 Max Envelop (psi) 2558 821 3158 5292 4770 r

QAE17

• REV 8/96

SCE Calc M-DSC-445, Rev 0

Subject:

Flaw Evaluation of ECCS Schedule 10s Piping Sheet 55 of 108 '

APGSCECE2TECHNLG Made by:

Date:

Client:

Calculation No.:

AES-C-7384-2 RCC 5/14/10 SCE Checked by:

Date:

Project No.:

Title:

Allowable Through-Wall Flaws in ECCS CQL 5/14/10 AES-10027384-2Q Schedule 10s Piping at SONGS Units 2 & 3 Revision No.:

Document Control No.:

Page No.:

0 1-2 48 of 101 A.4 ECCS HPSI Train A between MU007 and P017 (Line 1204ML007)

The allowable flaw lengths for the ECCS HPSI Train A, Line 1204ML007, in size NPS 8, are calculated in Section A.4. Stress values were extracted from SCE summaries (Ref. 7, Attachment 2). The allowable flaw length results are given in Tables A4-1 and A4-2. The stress summaries used in the evaluation are given in Table A4-3 for 8 NPS Schedule 1Os piping.

Two material conditions were evaluated: flux-welded pipe by SAW or SMAW process, and TIG welded and wrought pipe. For the butt welds using SAW or SMAW, the following allowable flaw lengths were determined:

Table A4-1 Summary of Allowable Through-Wall Flaw Length Results ECCS HPSI Train A between MU007 and P017 (SAW and SMAW)

Allowable Combined Membrane Length Stress Stress Pipe OD Loading Criteria Criteria faliow

% OD Limiting Line Size (in)

Condition (in)

(in)

(in)

Circum.

Condition 1204ML007 8

8.625 Upset 12.41 15.31 Faulted 12.47 17.45 For TIG welds and wrought pipe, the following allowable flaw lengths were determined:

Table A4-2 Summary of Allowable Through-Wall Flaw Length Results ECCS HPSI Train A between MU007 and P017 (TIG and Wrought)

Allowable Combined Membrane Length Stress Stress Pipe OD Loading Criteria Criteria allow

% OD Limiting Line Size (in)

Condition (in)

(in)

(in)

Circum.

Condition 1204ML007 8

8.625 Upset 15.53 16.42 15.53 57.3 [ Upset Faulted 15.64 18.35 QAE17 REV 8/96

SCE, Calc M-DSC-445, Rev 0

Subject:

Flaw Evaluation of ECCS Schedule 10s Piping NGM EER*NRG 1 SCI*NCE 1 TECHNOLO*Y Sheet 56 of 108 Made by:

Date:

Client:

Calculation No.:

AES-C-7384-2 RCC 5/14/10 SCE Checked by:

Date:

Project No.:

Title:

Allowable Through-Wall Flaws in ECCS CQL 5/14/10 AES-10027384-2Q Schedule 10s Piping at SONGS Units 2 & 3 Revision No.:

Document Control No.:

Page No.:

0 1-2 49 of 101 Table A4-3A Pipe Design Stress Summary for ECCS Piping - NPS 8 Various Lines - ECCS HPSI Train A ASME Section III Code Stresses Design Operating Pm Pm SIF Eq. 8 Eq. 9U Eq. 9F Eq. 10 DW DBE Node Item (psi)

(psi)

(I)

(psi)

(psi)

(psi)

((si)

(psi) 47 Elbow 1521 1521 4.213 2731 4193 5407 9355 1210 2676 97X Pipe 1521 1521 1.0 1589 3176 4425 2522 68 2836 94 Reducer 1521 1521 2.000 2050 4028 5617 7500 529 3567 97 Pipe 1521 1521 1.0 1557 3288 4806 3027 36 3249 100 Elbow 1521 1521 4.213 2455 3954 5227 9010 934 2772 Notes:

1)

Operating pressure and temperature are 110 psi and 225°F. The design calculations were done for a design pressure of 110 psi.

2)

Seismic OBE stresses are 1/2 the faulted DBE stress values.

Table A4-3B Pipe Design Stress Summary for ECCS Piping - NPS 8 Various Lines - ECCS HPSI Train A Operating Upset Faulted Expansion am DW*

ab

.Cb a,

Node Item (psi)

(psi)

(psi)

(psi)

(psi) 47 Elbow 1521 383 846 1230 2221 97X Pipe 1521 68 1655 2904 2522 94 Reducer 1521 353 1671 2731 3750 97 Pipe 1521 36 1767 3285 3027 100 Elbow 1521 296 770 1173 2139 Max Envelop (psi) 1521 383 1767 3285 3750 QAE17 REV 8/96

SCE Calc M-DSC-445, Rev 0

Subject:

Flaw Evaluation of ECCS Schedule los Piping Sheet 57 of 108 ENGINEERI NG 13 SCI~nCE 13 TEHNOLOGQY Made by:

Date:

Client:

Calculation No.:

AES-C-7384-2 RCC 5/14/10 SCE Checked by:

Date:

Project No.:

Title:

Allowable Through-Wall Flaws in ECCS CQL 5/14/10 AES-10027384-2Q Schedule 10s Piping at SONGS Units 2 & 3 Revision No.:

Document Control No.:

Page No.:

0 1-2 50 of 101 A.5 ECCS HPSI Common (Line 1204ML009) and HPSI Train B (Line 1204ML008)

The allowable flaw lengths for the ECCS HPSI common and Train B (NPS 8) piping are calculated in Section A.5. Stress values were extracted from SCE summaries (Ref. 7, Attachments 3 and 4). The allowable flaw length results are given in Tables A5-1 and A5-2. The stress summaries used in the evaluation are given in Table A5-3 for the 8 NPS Schedule 1Os piping.

Two material conditions were evaluated: flux-welded pipe by SAW or SMAW process, and TIG welded and wrought pipe. For the butt welds using SAW or SMAW, the following allowable flaw lengths were determined:

Table A5-1 Summary of Allowable Through-Wall Flaw Length Results ECCS HPSI Common between MU010, MU011 and P018 HPSI Train B between MU009 and P019 (SAW and SMAW)

Combined Membrane Allowable Stress Stress Length Pipe OD Loading Criteria Criteria

-ealiow

% OD Limiting Line Size (in)

Condition (in)

(in)

(in)

Circum.

Condition 1204ML009/

8 8.625 Upset 3.26 153 008 1

1 2.94 10.8%

Faulted Faulted 2.94 17.45 For TIG welds and wrought pipe, the following allowable flaw lengths were determined:

Table A6-2 Summary of Allowable Through-Wall Flaw. Length Results ECCS HPSI Common between MU010, MU01I and P018 HPSI Train B between MU009 and P019 (TIG and Wrought)

Allowable Combined Membrane AllLength Stress Stress Length Pipe OD Loading Criteria Criteria

-eallow

% OD Limiting Line Size (in)

Condition (n

(in)

(in)

Circum.

Condition 1204ML009/

8 8.625 Upset 7.34 16.42 008 6

7.12 26.3%

Faulted Faulted 7.12 18.35 QAE17 REV 8/96

SCE Calc M-DSC-445, Rev 0

Subject:

Flaw Evaluation of ECCS Schedule 10s Piping CAPTICHOl Sheet 58 of 108 Calculation No.:

AES-C-7384-2

Title:

Allowable Through-Wall Flaws in ECCS Schedule 1Os Piping at SONGS Units 2 & 3 Table A5-3A Pipe Design Stress Summary for ECCS Piping - NPS 8 Lines 1204ML0091008 - ECCS HPSI Common and Train B ASME Section III Code Stresses Design Operating Pm Pm SIF Eq. 8 Eq. 9U Eq. 9F Eq. 10 DW DBE Node Item (psi)

(psi)

(ii)

(psi) si 370 1521 1521 4.209 3333 12704.

18951

.7857 18.12 15618 445 1521 15211 4.209 3907 14311 21247 13556 2386 17340 451 1521 1521 1.0 4185 15351 22795 902 2664 18610 378 Pipe 1521 1521 1.0 1962 3387 4337 2382 441

.2375 445 Elbow (LR) 1521 1521 4.209 2994 4837

)6066 15595 1473 3072 Notes:

1) Operating pressure and temperature are 110 psi and 2250F. The design calculations were done for a design pressure of 110 psi.

2) Seismic OBE stresses are 3/5 the faulted DBE stress values.

Table A5-3B Pipe Design Stress Summary for ECCS Piping - NPS 8 Lines 1204ML009/008 - ECCS HPSI Common and Train B Operating Upset Faulted Expansion a$m DW*

a*b ab (ae Node Item (psi)

(psi)

(psi))

(psi)

(psi) 370 1521 574 3543 5522 1867 445 1521 756 4052 6249 3221 451 1521

. 2664 13830 21274 902 378 Pipe 1521 441 1866 2816 2382 445 Elbow (LR) 1521 467 1050 1440 3705 Max Envelop (psi) 1521 2664 13830 21274 3705 QAE17 REV 8/96

SCE Calc M-DSC-445, Rev 0

Subject:

Flaw Evaluation of ECCS Schedule 10s Piping S~RPTECHI, E*NGINIEE*NG 0 SCI*ENCEI D TECHKOLOGY Sheet 59 of 108 Made by:

Date:

Client:

Calculation No.:

AES-C-7384-2 RCC 5/14/10 SCE Checked by:

Date:

Project No.:

Title:

Allowable Through-Wall Flaws in ECCS CQL 5/14/10 AES-10027384-2Q Schedule 10s Piping at SONGS Units 2 & 3 Revision No.:

Document Control No.:

Page No.:

0 1-2 52 of 101 A.6 ECCS All Train A (Line 1204ML003)

The allowable flaw lengths for the ECCS Train A piping are calculated in Section A.6. Stress values were extracted from SCE summaries (Ref. 7, Attachment 6). The allowable flaw length results are given in Tables A6-1 and A6-2. The stress summaries used in the evaluation are given in Table A6-3 for the 24 NPS Schedule 10s piping.

Two material conditions were evaluated: flux-welded pipe by SAW or SMAW process, and TIG welded and wrought pipe. For the butt welds using SAW or SMAW, the following allowable flaw lengths were determined:

Table A6-1 Summary of Allowable Through-Wall Flaw Length Results ECCS Train A between MU003 and HV9303, and HV9303 and Emergency Sump (SAW and SMAW)

Allowable Combined Membrane Length Stress

• Stress Lnt Pipe OD Loading Criteria Criteria

• allow

% OD Limiting Line Size Condition (in) in (in)

Circum.

Condition 1204ML003 24 24.00 Upset 11.17 34.53 11.17 14.8%

Upset Faulted 12.12 42.07 For TIG welds and wrought pipe, the following allowable flaw lengths were determined:

Table A6-2 Summary of Allowable Through-Wall Flaw Length Results ECCS Train A between MU003 and HV9303, and HV9303 and Emergency Sump (TIG and Wrought)

Allowable Combined Membrane Length Stress Stress Pipe OD Loading Criteria Criteria

-ealiow

% OD Limiting Line Size (in)

Condition (in)

(in)

(in)

Circum.

Condition 1204ML003 24 24.00 Upset 34.79 40.17 34.79 46.1%

Upset Faulted 35.89 46.57 QAE17 REV 8/96

SCE Calc M-DSC-445, Rev 0

Subject:

Flaw Evaluation of ECCS Schedule 10s Piping W A P TE C:H]

E*NGINEE*NG C SCIENE 0 TECHNOLOGY Sheet 60 of 108 Made by:

Date:

Client:

Calculation No.:

AES-C-7384-2 RCC 5/14/10 SCE Checked by:

Date:

Project No.:

Title:

Allowable Through-Wall Flaws in ECCS CQL 5/14/10 AES-10027384-2Q Schedule 10s Piping at SONGS Units 2 & 3 Revision No.:

Document Control No.:

Page No.:

0 1-2 53 of 101 Table A6-3A Pipe Design Stress Summary for ECCS Piping - NPS 24 Line 1204ML003 - ECCS Train A ASME Section III Code Stresses Design Operating Pm PM SIF Eq q

11 q.9 q

0 D

B Node Item (psi)

(psi)

(i) s 1OBB 2558 2558 5.635 2624 7482 11466 12678 66 8842 15E 2558 2558 5.635 4360 8295 11522 10325 1802 7162 20 2558 2558 1.0 3545 6548 9011 2887 987 5466 38 2558 2558 1.0 3774 4285 4705 1331 1216 931 44BB 2558 2558 5.635 3699 6048 7975 9860 1141 4276 45 2558 2558 6.211 3411 5838 7829 11324 853 4418 46E 2558 2558 5.635 2883 5644 7909 1407 325 5026 70 2558 2558 1.0 2871 4362 5585 14990 313 2714 Notes:

1) Operating pressure and temperature are 110 psi and 2250F. The design calculations were done for a design pressure of 110 psi.

2) Seismic OBE stresses are -1/2 the faulted DBE stress values.

Table A6-3B Pipe Design Stress Summary for ECCS Piping - NPS 24 Line 1204ML003 - ECCS Train A Operating Upset Faulted Expansion am DW*

I b

Cb ae Node Item (spsi).

(.si).

(psi))

(psi)

(psi) 10BB 2558 16 1165 2108 2250 15E 2558 426 1357 2121 1832 20 2558 987 3990 6453 2887 38 2558 1216 1727 2147 1331 44BB 2558 270 826 1282 1750 45 2558 183 704 1132 1823 46E 2558 77 730 1266 250 70 2558 313 1804 3027 14990 Max Envelop (psi) 2558 1216 3990 6453 14990 QAE17 REV 8/96

SCE Calc M-DSC-445, Rev 0

Subject:

Flaw Evaluation of ECCS Schedule '10s Piping

ý PTECH Sheet 61 of 108 Made by:

Date:

Client:

Calculation No.:

AES-C-7384-2 RCC 5/14/10 SCE Checked by:

Date:

Project No.:

Title:

Allowable Through-Wall Flaws in ECCS CQL 5/14/10 AES-10027384-2Q Schedule 10s Piping at SONGS Units 2 & 3 Revision No.:

Document Control No.:

Page No.:

0 1-2 54,of 101 A.7 ECCS RWST (Lines 1219ML073 and 1219ML072)

The allowable flaw lengths for the ECCS RWST lines between T005 and MU075 (Line 1219ML073) and between T006 and MU074 (Line 1219ML072) are calculated in Section A.7. Stress values were extracted from SCE summaries (Ref. 7, Attachments 5 and 11). There was only one stress value reported for each line which was the location of highest code stress. With such a limited sample, this value was taken as the bounding stress for the piping, without the removal of the SIF. This will account for other pipe locations where the SIF could be lower.

The allowable flaw length results are given -in Tables A7-1 and A7-2. -The stress summaries used inthe evaluation are given in Tables A7-3 and A7-4 for the 3 NPS Schedule 10s piping.

Two material conditions were evaluated: flUx-welded pipe by SAW or SMAW process, and TIG welded and wrought pipe. For the butt welds using SAW or SMAW, the following allowable flaw lengths were determined:

Table A7-1 Summary of Allowable Through-Wall Flaw Length Results ECCS RWST between T005 and MU075 and T006 and MU074 (SAW and SMAW)

Allowable Combined Membrane Length Stress Stress Pipe OD Loading Criteria Criteria

-eallow

% OD, Limiting Line Size (in)

Condition (in) in in)

Circum.

Condition 1204ML073 3

3.50 Upset 7.91 9.06 7.89 71.8%

Faulted

Faulted, 7.89 9.42 1204ML072 3

3.50 Upset 7.91 9.06 7.91 71.8%

Faulted

________Faulted 7.91 9.42 QAE17 REV 8/96 QAE17 REV 8/96

SCE Calc M-DSC-445, Rev 0

Subject:

Flaw Evaluation of ECCS Schedule 10s Piping ENIEM0 S IENF TECHNOLOGY Sheet 62 of 108 Made by:

Date:

Client:

Calculation No.:

AES-C-7384-2 RCC 5/14/10 SCE Checked by:

Date:

Project No.:

Title:

Allowable Through-Wall Flaws in ECCS CQL 5/14/10 AES-10027384-2Q Schedule 10s Piping at SONGS Units 2 & 3 Revision No.:

Document Control No.:

Page No.:

0 1-2 55 of 101 For TIG welds and wrought pipe, the following allowable flaw lengths were determined:

Table A7-2 Summary of Allowable Through-Wall Flaw Length Results ECCS RWST between T005 and MU075 and T006 and MU074 (TIG and Wrought)

T

~AllowableT Combined Membrane Lengthla Stress Stress Pipe OD Loading Criteria Criteria 9/6

% OD Limiting Line Size (in)

Condition (in)

(in)

(in)

Circum.

Condition 1204ML073 3

3.50 Upset 8.37 9.22 8.36 76.0%

Faulted Faulted 8.36 9.55 1204ML072 3

3.50 Upset 8.37 9.22 Faulted 8.38 9.55 QAE17 REV 8/96

SCE Calc M-DSC-445, Rev 0

Subject:

Flaw Evaluation of ECCS Schedule 10s Piping ENIERN 0 CIENCE 0 TECNLOCY Sheet 63 of 108 Made by:

Date:

Client:

Calculation No.:

AES-C-7384-2 RCC 5/14/10 SCE Checked by:

Date:

Project No.:

Title:

Allowable Through-Wall Flaws in ECCS CQL 5/14/10 AES-10027384-2Q Schedule 1Os Piping at SONGS Units 2 & 3 Revision No.:

Document Control No.:

Page No.:

0 1-2 56 of 101 Table A7-3A Pipe Design Stress Summary for ECCS Piping - NPS 3 Line 1219ML073 - RWST between T005 and MU075 Design Operating ASME Section III Code Stresses Pm Pm SIF Eq. 8 Eq. 9U Eq. 9F Eq. 10 DW DBE Node Item (psi)

(psi) 0(i) si si si si si si 165 99 1.9 {

361 683 1005 373 196 644 Notes:

1) Operating pressure and temperature are 15 psi and ambient. The design calculations were done for a design pressure of 25 psi.

2)

Seismic OBE stresses are 1/2 the faulted DBE stress values.

3)

Because of limited data, SIF is conservatively assumed to be 1.0 in all cases.

Table A7-3B Pipe Design Stress Summary for ECCS Piping - NPS 3 Line 1219ML073 - RWST between T005 and MU075 Operating Upset Faulted Expansion Ur DW*

Ub Ub U

Node Item (psi)

(psi)

(psi))

s (psi) 99 196 584 906 373 Max Envelop (psi) 99 196 584 906 373 QAEI7 REV 8/96

SCE Calc M-DSC-445, Rev 0

Subject:

Flaw Evaluation of ECCS Schedule 10s Piping SAPTECHWI I Sheet 64 of 108 Made by:

Date:

client:

Calculation No.:

AES-C-7384-2 RCC 5/14/10 SCE Checked by:

Date:

Project No.:

Title:

Allowable Through-Wall Flaws in ECCS CQL 5/14/10 AES-10027384-2Q Schedule 10s Piping at SONGS Units 2 & 3 Revision No.:

Document Control No.:

Page No.:

0 1-2 57 of 101 Table A7-4A Pipe Design Stress Summary for ECCS Piping - NPS 3 Line 1219ML072 - RWST between T006 and MU074 Design Operating ASME Section III Code Stresses Pm Pm SIF Eq. 8 Eq. U91 Eq. 9F Eq. 10 DW DBE Node Item (psi)

(psi)

(i) sipsi)

(psi si S {

165 99 {

1.9 f 373 678 98 3 373 28 610 Notes:

1) 2)

3)

Operating pressure and temperature are 15 psi and amnbient. The design calculations were done for a design pressure of 25 psi.

Seismic OBE stresses are 1/2 the faulted DBE stress values.

Because of limited data, SIF is conservatively assumed to be 1.0 in all cases, Table A7-4B Pipe Design Stress Summary for ECCS Piping - NPS 3 Line 1219ML072 - RWST between T006 and MU074 Operating

Upset, Faulted Expansion, ITm DW*

I*b eb e

Node Item (psi)

(psi)

(psi))

(psi)

(psi) 7 99 208 579 884 373 Max Envelop (psi) 99 208 579 884 373 QAEI7 REV 8/96

SCE Calc M-DSC-445, Rev 0

Subject:

Flaw Evaluation of ECCS Schedule 10s Piping SAPTECHN ETNGINE.ERINtG 13 SCIENC*E 8 TECHNOLOGIY" Sheet 65 of 108 Made by:

Date:

Client:

Calculation No.:

AES-C-7384-2 RCC 5/14/10 SCE Checked by:

Date:

Project No.:

Title:

Allowable Through-Wall Flaws in ECCS CQL 5/14/10 AES-10027384-2Q Schedule 10s Piping at SONGS Units 2 & 3 Revision No.:

Document Control No.:

Page No.:

0 1-2 58 of 101 A.8 ECCS RWST and All Train B (Lines 1204ML002, 004, 008)

The allowable flaw lengths for the RWST piping between T006 and HV9301, and Train B piping between HV9301 and MU002, are calculated in Section A.8. Stress values were extracted from SCE summaries (Ref. 7, Attachments 3 and 4). These data included the 24 NPS pipe from other line sections that were captured in the stress survey (see Table A1-1).

The allowable flaw length results are given in Tables A8-1 and A8-2. The stress summaries used in the evaluation are given in Table A8-3 for the 24 NPS Schedule 1 Os piping.

Two material conditions were evaluated: flux-welded pipe by SAW or SMAW process, and TIG welded and wrought pipe. For the butt welds using SAW or SMAW, the following allowable flaw lengths were determined:

Table A8-1 Summary of Allowable Through-Wall Flaw Length Results RWST between T006 and HV9301 and Train B between HV9301 and MU002 (SAW and SMAW)

Allowable Combined Membrane Length Stress Stress 1egt Pipe OD Loading Criteria Criteria talow

% OD Limiting Line Size i

Condition (in)

(in)

Circum.

Condition

[Note 1]

24 24.00 Upset 17.22 34.53 22.8%

Upset 17.22 22.8%

Upset Faulted 18.61 42.07 Note 1: Lines 1204ML002, 004, 008 QAE17 REV 8/96

SCE Calc M-DSC-445, Rev 0

Subject:

Flaw Evaluation of ECCS Schedule 10s Piping Sheet 66 of 108 A

I NR PV T~~IEC H

U Made by:

Date:

Client:

Calculation No.:

AES-C-7384-2 RCC' 5/14/10 SCE Checked by:

Date:

Project No.:

Title:

Allowable Through-Wall Flaws in ECCS CQL 5/14/10 AES-10027384-2Q Schedule 10s Piping at SONGS Units 2 & 3 Revision No.:

Document Control No.:

Page No.:

0 1-2 59 of 101 For TIG welds and wrought pipe, the following allowable flaw lengths were determined:

Table A8-2 Summary of Allowable Through-Wall Flaw Length Results RWST between T006 and HV9301 and Train B between HV9301 and MU002 (TIG and Wrought)

Combined Membrane Allowable Stress Stress Length Pipe OD Loading Criteria Criteria fallow

% OD Limiting Line Size (in)

Condition (in)

(in)

(in)

Circum.

Condition

[Note 1]

24 24.00 Upset 33.01 40.17 Faulted 34.42 46.57 3

Note 1: Lines 1204ML002, 004, 008 QAE17 REV 8/96

SCE Calc M-DSC-445, Rev 0

Subject:

Flaw Evaluation of ECCS Schedule 10s Piping 1N fPT KCHO E*GH,RNWN E

• m a SCIENCE O1TECNLKQU*Y" Sheet 67 of 108 Made by:

Date:

Client:

Calculation No.:

AES-C-7384-2 RCC 5/14/10 SCE Checked by:

Date:

Project No.:

Title:

Allowable Through-Wall Flaws in ECCS CQL 5/14/10 AES-10027384-2Q Schedule 10s Piping at SONGS Units 2 & 3 Revision No.:

Document Control No.:

Page No.:

0 1-2 60 of 101 Table A8-3A Pipe Design Stress Summary for ECCS Piping'- NPS 24 Various Lines - RWST and Train B Design Operating ASME Section III Code Stresses Pm Pm SIF Eq. 8 Eq. 9U [ Eq. 9F Eq. 10 DW]

DBE Node Item (psi)

(psi)

(i)

(psi)

(psi)

(psi I

(psi) 5 20 30 40 ANC 85 88 94 96 56 58 61 B 80O 810 85 40 93 56 58 63 65 67 85 816 Elbow Tee Run Tee Branch Tee Run Reducer Tee Run Tee (run)

Tee (run)

Tee (branch)

Tee (run)

Tee (run)

Tee (branch)

Elbow (LR)

Elbow (SR)

Pipe Pipe Pipe Tee (run)

Tee (run)

Tee (branch)

Elbow (LR) 2558 2558 2558 2558 2558 2558 2558 2558 2558 2558 2558 2558 2558 2558 2558 2558 2558 2558 2558 2558 2558 2558 2558 2558 2558 2558 2558 2558 2558 2558 2558 2558 2558 2558 2558 2558 2558 2558 2558 2558 2558 2558 2558 2558 2558 2558 2558 2558 2558 2558 2558 2558 2558 2558 2558 2558 2558 2558 2558 2558 1.0 1.0 5.635 4.396 4.396 4.396 1.0 4.396 2.0 5.635 7.384 1.0 5.635 1.0 4.396 2669 3297 3741 3430 3155 3742 3534 4505 6893 3330 3712 3562 3067 3147 3742 2915 3128 2777 3488 3748 2943 3727 3864 3597 3939 3003 3029.

3048 3286 3289 4222 4627 9395 10103 11956 13559 6469 12988 8854 8608 7327 7140 5262 4754 13559 12775 10075 10517 9546 10258 10480 9972 9013 7478 6893 6077 17190 17238 7106 6541 5258 5514 13165 14552 17226 20103 8427 18643 7698 12127 9737 9525 6725 5825 20103 19348 14707 15677 13585 14598 15506 14135 12446 10065 8862 8126 26631 26698 9653 8709 3722 4592 8797 5704 4157 6837 3806 17113 2131 5493 7541 1334 7541 7541 6837 111 739 1183 872 597 1184 976 1947 4335 772 1154 1004 509 589 1184 2589 2217 9424 11122 14071 16361 4893 14138 805 8797 6025 5963 3658 2678 16361 16433 11579 12900 10097 10850 12563 10408 8582 6468 4923 5123 23602 23650 6367 5420 4.396 4.396 4.396 4.65 4.65 4.65 5.635 7.38 1.00 1.00 1.00 4.65 4.65 4.65 5.635 3769 1992 4723 8242 9323 6767 10715 13299 1731 2855 5698 3151 3409 11454 14710 357 570 219 930 1190 385 1169 1306 1039 1381 445 471 490 728 731 Notes:

1)

Operating pressure and temperature are 15 psi and ambient. The design calculations were conservatively done for a pressure of 110 psi.

2)

Seismic OBE stresses are 3/5 the faulted DBE stress values.

QAE17 REV 8/96

SCE Calc M-DSC-445, Rev 0

Subject:

Flaw Evaluation of ECCS Schedule 10s Piping Sheet 68 of 108 Made by:

RCC Date:

5/14/10 Client:

SCE Calculation No.:

AES-C-7384-2

Title:

Allowable Through-Wall Flaws in ECCS Schedule 10s Piping at SONGS Units 2 & 3 Checked by:

Date:

Project No.:

CQL 5/14/10 AES-10027384-2Q Revision No.:

Document Control No.:

Page No:

0 1-2 61 of 101 Table A8-3B Pipe Design Stress Summary for ECCS Piping - NPS 24 Various Lines - RWST and Train B Operating Upset Faulted Expansion am DW*

Gb Gb Ge Node Item (psi)

(psi)

(psi))

(psi)

(psi) 5 ANC 2558 111 1664 2700 3722 20 2558 739 2069 2956 4592 30 Elbow 2558 280 1618 2510 1561 40 Tee Run 2558 264 2288 3638 1298 Tee Branch 2558 181 2850 4449 946 85 2558 359 3337 5322 1555 88 2558 976 3911 5869 3806 94 Tee Run 2558 591 3163 4879 3893 96 Reducer 2558 2890 4197 3427 1066 56 2558 183 1432 2264 975 58 2558 208 861 1296 1021 61B 2558 1004 4582 6967 1334 800 2558 120 640 986 1338 810 2558 589 2196 3267 7541 85

,Tee Run 2558 359 3337 5322 1555 40 Tee (run) 2558 108 3099 5093 857 Tee (run) 2558 173 2280 3685 453 Tee (branch) 2558 66 2414 3979 1074 93 Tee (run) 2558 267 2004 3162 1772

. Tee (run) 2558 341 2208 3452 2005 Tee (branch) 2558 110 2272 3713 1455 56 Elbow (LR) 2558 277 1754 2739 1902 58 Elbow (SR) 2558 236 1166 1785 1801 63 Pipe 2558 1039 4920 7507 1731 65 Pipe 2558 1381 4335 6304 2855 67 Pipe 2558 445 3519 5568 5698 85 Tee (run) 2558 135 4196 6903 678 Tee (run) 2558 141 4209 6922 733 Tee (branch) 2558 209 1304 2034 2463 816 Elbow (LR) 2558 173 942 1455 2610 Max Envelop (psi) 2558 2890 4920 7507 7541 QAE17 REV 8/96

SCE Calc M-DSC-445, Rev 0

Subject:

Flaw Evaluation of ECCS Schedule 10s Piping SPTECH.

LNI

%RNERM9G 0* SV;EN F.U T *ECHMLO*,Y Sheet 69 of 108 Made by:

Date:

Client:

Calculation No.:

AES-C-7384-2 RCC 5/14/10 SCE Checked by:

Date:

Project No.:

Title:

Allowable Through-Wall Flaws in ECCS CQL 5/14/10 AES-10027384-2Q Schedule 1Os Piping at SONGS Units 2 & 3 Revision No.:

Document Control No.:

Page No.:

0 1-2 62 of 101 A.9 ECCS All Train B and CS Train B (Lines 1204ML109/0041031/0081010)

The allowable flaw lengths for the ECGS All Train B and CS Train B piping are calculated in Section A.9.

Stress values were extracted from the SCE stress summaries (Ref. 7, Attachments 3 and 4). Piping that is listed as NPS 14 is not evaluated because it is not Schedule 1Os size.

The allowable flaw length results are given in Tables A9-1 and A9-2. Thestress summaries used in the evaluation are given in Table A9-3 through A9-4 for the 10 and 16 NPS Schedule 1Os piping. The allowable flaw length results for the 24 NPS piping were provided in Section A.8.

Two material conditions were evaluated: flux-welded pipe by SAW or SMAW process, and TIG welded and wrought pipe. For the butt welds using SAW or SMAW, the following allowable flaw lengths were determined:

Table A9-1 Summary of Allowable Through-Wall Flaw Length Results ECCS Train B between MU002, MU004 and MUO09 and between MUI011, MU005 and MU023 ECCS CS Train B between MU005 and P013 (SAW and SMAW)

Allowable Combined MembraneAloae Stress-Stress Length Pipe OD Loading Criteria Criteria eaIlow

% OD Limiting Line Size (in)

Condition, (in (in)

(in)

Circum.

Condition

[Note 1]

10 10.75 Upset 13.03 18.41 13.03 38.6%

Upset Faulted 13.53 21.20

[Note 1 & 2]

16 16.00 Upset 19.20 24.74 19.20 38.2%

Upset Faulted 20.69 29.41 Notes:

1) Train B, Lines 1204ML109, 004, 031, 008, and 010.

2) CS Train B Line 1204ML004 QAE17 REV 8/96

SCE Calc M-DSC-445, Rev 0

Subject:

Flaw Evaluation of ECCS Schedule 10s Piping P TECHlo E*NGINEERING 0 SCIENCE' G TECHNOLOGY Sheet 70 of 108 Made by:

Date:

Client:

Calculation No.:

AES-C-7384-2 RCC 5/14,/10 SCE Checked by:

Date:

Project No.:

Title:

Allowable Through-Wall Flaws in ECCS CQL 5/14/10 AES-10027384-2Q Schedule 10s Piping at SONGS Units 2 & 3 Revision No.:

Document Control No.:

Page No.:

0 1-2 63 of 101 For TIG welds and wrought pipe, thefollowing allowable flaw lengths were determined:

Table A9-2 Summary of Allowable Through-Wall Flaw Length Results ECCS Train B between MU002, MU004 and MU009 and between MU011, MU005 and MU023 ECCS CS Train B between MU005 and P013 (TIG and Wrought)

Allowable Combined Membrane Length Stress Stress Length Pipe OD Loading Criteria Criteria

-aeIow

% OD Limiting Line Size (in)

Condition (in)

(in)

Circum.

Condition

[Note 1]

10 10.75 Upset 16.65 19.94 16.65 49.3%

Upset Faulted 17.17 22.44

[Note 1 & 2]

16 16.00 Upset 25.53 27.73 25.53 50.8%

Upset Faulted 27.06 31.81 Notes:

1) Train B, Lines 1204ML109, 004, 031,008, and 010.

2) CS Train B Line 1204ML004 QAE17 REV 8/96

SCE Caic M-DSC-445, Rev 0

Subject:

Flaw Evaluation of ECCS Schedule 10s Piping T-M PTIC HI Sheet 71 of 108 Made by:

Date:

Client:

Calculation No.:

AES-C-7384-2 RCC 5/14/10 SCE Checked by:

Date:

Project No.:

Title:

Allowable Through-Wall Flaws in ECCS CQL 5/14/10 AES-10027384-2Q Schedule 10s Piping at SONGS Units 2 & 3 Revision No.:

Document Control No.:

Page No.:

0 1-2 64 of 101 Table A9-3A Pipe Design Stress Summary for ECCS Piping - NPS 10 Various Lines - Train B De~sign Operating ASME Section III Code Stresses Pm Pm SIF Eq. 8 Eq. 9U Eq. 9F Eq. 10 DW DBE Node Item (psi)

(psi)

(i)

(psi)

(psi)

(psi) si) 85 Tee Branch 1710 1710 4.396 2445 8424 12410 10955 735 9965 358 1710 1710 1.0 2695 5671 7655 2922 985 4960 360 1710 1710 4.537 2827 9259 13547 13254 1117 10720 365 Tee Run 1710 1710 3.384 2958 9226 13405 6143 1248 10447 365 Tee Branch 1710 1710 3.384 2835 11087 16588 5109 1125 13753 358 Pipe 1710 1710 1.0 2398 3992 5055 2546 688 2657 360 Elbow (LR) 1710 1710 4.537 2544 5632 7691 13541 834 5147 365 Tee (run) 1710 1710 3.384 2626 5012 6603 3528 916 3977 Tee (run) 1710 1710 3.384 3125 5381 6885 7534 1415 3760 Tee Branch 1710 1710 3.384 2755 7145 10072 7663 1045 7317 Notes:

1) Operating pressure and temperature are 110 psi and 225°F. The design calculations were conservatively done for a pressure of 110 psi.

2)

Seismic OBE stresses are 3/5 the faulted DBE stress values.

QAE17 REV 8/96

SCE Calc M-DSC-445, Rev 0

Subject:

Flaw Evaluation of ECCS Schedule 10s Piping ENCINE* NO 0 SCIE.E 0 TECHNOLOGY Sheet 72 of 108 Made by:

Date:

Client:

Calculation No.:

AES-C-7384-2

.RCC 5/14/10 SCE Checked by:

Date:

Project No.:

Title:

Allowable Through-Wall Flaws in ECCS CQL 5/14/10 AES-10027384-2Q Schedule 10s Piping at SONGS Units 2 & 3 Revision No.:

Document Control No.:

Page No.:

0 1-2 65 of 101 Table A9-3B Pipe Design Stress Summary for ECCS Piping - NPS 10 Various Lines - Train B Operating Upset Faulted Expansion arm DW*

C*b ab c'e Node Item (psi)

(psi)

(psi))

(psi)

(psi) 85 Tee Branch 1710 223 2036 3245

.2492 358 1710 985 3961 5945 2922 360 1710 328 2218 3479 2921 365 Tee Run 1710 492 2961 4608 1815 365 Tee Branch 1710 443 3695 5862 1510 358 Pipe 1710 688 2282 3345 2546 360 Elbow (LR) 1710 245 1153 1758 2985 365 Tee Run 1710 361 1301 1928 1043 Tee Run 1710 558 1446 2039 2226 Tee Branch 1710 412 2141 3295 2264 Max Envelop (psi) 1710 985 3961 5945 2985 QAEI7 REV 8/96

SCE Calc M-DSC-445, Rev 0

Subject:

Flaw Evaluation of ECCS Schedule 10s Piping

,I APTeC7H.

E-NGINF,,UN G 0 SVENCE 11 TECHNOLOGQY Sheet 73 of 108 Made by:

Date:

Client:

Calculation No.:

AES-C-7384-2 RCC 5/14/10 SCE Checked by:

Date:

Project No.:

Title:

Allowable Through-Wall Flaws in ECCS CQL 5/14/10 AES-10027384-2Q Schedule 1Os Piping at SONGS Units 2 & 3 Revision No.:

Document Control No.:

Page No.:

0 1-2 66 of 101 Table A9-4A Pipe Design Stress Summary for ECCS Piping - NPS 16 Various Lines - Train B Design Operating

_ASME Section III Code Stresses Pm Pm SIF Eq. 8 Eq. 9U Eq. 9F Eq. 10 DW DBE Node Item (psi)

(psi)

(i))

(psi) psi) 110 Elbow 2258 2258 5.191 6215 12828 17237 19229 3957 11022 112 2258 2258 1.0 2727 3448 3929 2299 469 1202 115 Elbow 2258 2258 5.191 4107 8380 11228 11745 1849 7121 115B-116 2258 2258 1.000 2733 3831 4562 1968 475 1829 120 Elbow 2258 2258 5.191 3603 7509 10114 8548 1345 6511 121 2258 2258 1.0 2608 4131 5146 2060 350 2538 138 Elbow 2258 2258 5.191 2853 5164 6705 8383 595 3852 139 Elbow 2258 2258 6.802 2727 4820 6214 12525 469 3487 139 Run 2258 2258 1.0 2351 2760 3034 1841 93 683 110 Elbow (LR) 2258 2258 5.191 2778 7607 10827 11261 520 8049 133 Pipe 2258 2258 1.0 2889 4206 5085 1869 631 2196 140 Elbow (SR) 2258 2258 6.802 6946 12268 15816 8350 4688 8870 171 Elbow (LR) 2258

-2258 4.65 3523 10376 14945 4224 1265 11422 Notes:

1)

Operating pressure and temperature are 110 psi and 2250F. The design calculations were conservatively done for a pressure of 110 psi.

2)

Seismic OBE stresses are 3/5 the faulted DBE stress values.

QAE17 REV 8/96

SCE Calc M-DSC-445, Rev 0

Subject:

Flaw Evaluation of ECCS Schedule 10s Piping INIE*RING

ICIrM tECHXOLOgY Sheet 74 of 108 Made by

Date:

Client:

Calculation No.:

AES-C-7384-2 RCC 5/14/10 SCE Checked by:

Date:

Project No.:

Title:

Allowable Through-Wall Flaws in ECCS CQL 5/14/10 AES-10027384-2Q Schedule 10s Piping at SONGS Units 2 & 3 Revision No.:

Document Control No.: Page No.:

0 1-2 67 of 101 Table A9-4B Pipe Design Stress Summary for ECCS Piping - NPS 16 Various Lines - Train B Operating Upset Faulted Expansion am DW* I b

Ub C'e Node Item (psi)

(psi)

(psi))

(psi)

(psi) 110 Elbow 2258 1016 2715 3847

.3704 112 2258 469 1190 1671 2299 115 Elbow 2258 475 1572 2304 2263 115B-2258 475 1573 2304 1968 116 120 Elbow 2258 345 1349 2018 1647 121 2258 350 1873 2888 2060 138 Elbow 2258 153 746 1142 1615 139 Elbow 2258 92 502 775 1841 139 Run

.2258 93 502 776 1841 110 Elbow (LR) 2258 134 1374 2201 2169 133 Pipe 2258 631 1948 2827 1869 140 Elbow (SR) 2258 919 1962 2658 1228 171 Elbow (LR) 2258 363 2328 3638 908 Max Envelop (psi) 2258 1016 2715 3847 3704 QAE17 REV 8/96

SCE Calc M-DSC-445, Rev 0

Subject:

Flaw Evaluation of ECCS Schedule 10s Piping PNOMN*NG B SCIENCE 8 TECHnLOGY Sheet 75 of 108 Made by:

Date:-

Client:

Calculation No.:

AES-C-7384-2 RCC 5/14/10 SCE Checked by:

Date:

Project No.:

Title:

Allowable Through-Wall Flaws in ECCS CQL 5/14/10 AES-10027384-2Q Schedule 10s Piping at SONGS Units 2 & 3 Revision No.:

Document Control No.:

Page No.:

0 1-2 68 of 101 A.10 ECCS All Train B (Line 1204ML004)

The allowable flaw lengths for the ECCS Train B, Line 1204ML004 are calculated in Section A.10. Stress values were extracted from the SCE stress summaries (Ref. 7, Attachment 12). The allowable flaw length results are given in Tables A10-1 and A10-2. The stress summaries used in the evaluation are given in Table Al 0-3 for the 24 NPS Schedule 1 Os piping.

Two material conditions were evaluated: flux-welded pipe by SAW or SMAW process, and TIG welded and wrought pipe. For the butt welds using SAW or SMAW, the following allowable flaw lengths were determined:

Table A10-1 Summary of Allowable Through-Wall Flaw Length Results ECCS All Train B Piping between MU004 and HV9302, and. HV9302 and Emergency Sump (SAW and SMAW) ifAllowable Combined Membrane Length Stress Stress Pipe OD Loading Criteria Criteria

-ealow

% OD Limiting Line Size Condition (in) in)

(in)

Circum.

Condition 1204ML004 24 24.00 Upset 6.87 34.53 7

1 Faulted 11.50 42.07 For TIG welds and wrought pipe, the following allowable flaw lengths were determined:

Table A10-2 Summary of Allowable Through-Wall Flaw Length Results ECCS All Train B Piping between MU004 and HV9302, and HV9302 and Emergency Sump (TIG and Wrought)

T Allowable Com bined Mem brane Length Stress Stress Length Pipe OD Loading Criteria Criteria

-ealow

% OD Limiting Line Size (in)

Condition (in)

(in)

Circum.

Condition 1204ML004 24 24.00 Upset 21.06 40.17

21. 06 27.9%

Upset Faulted 24.43 46.57 QAE17 REV 8/96

SCE Calc M-DSC-445, Rev 0

Subject:

Flaw Evaluation of ECCS Schedule 10s Piping E*GINEERING 0 SCrlNCE 0 TECHNOLOGY Sheet 76 of 108 Made by:

Date:

Client:

Calculation No.:

AES-C-7384-2 RCC 5/14/10 SCE Checked by:

Date:

Project No.:

Title:

Allowable Through-Wall Flaws in ECCS CQL 5/14/10 AES-10027384-2Q Schedule 10s Piping at SONGS Units 2 & 3 Revision No.:

Document Control No.:

Page No.:

0 1-2 69 of 101 Table A10-3A Pipe Design Stress Summary for ECCS Piping - NPS 24 Line 1204ML004 - ECCS All Train B Design Operating ASME Section III Code Stresses Pm Pm SIF Eq. 8 Eq. 9U

'Eq. 9F Eq. 10 DW DBE Node Item (psi)

(psi)

(i)

(psi)I (psi)

(psi)

(psi)

(psi) 1OBB 2558 2558 5.635 4175 7355 10535 10426 1617 6360 15E 2558 2558 5.635 3945 6129 8313 7292 1387 4368 20 2558 2558 1.0 8277 12387 16497 3085 5719 8220 25 2558 2558

-1.0 11264 14860 18456 2345 8706 7192 38 2558 2558 1.000 7828 9748 11668 2120 5270 3840 44BB 2558 2558 5.635 8672 12202 15732 12093 6114 7060 45 2558 2558 1.000 3426 4048 4670 2131 868 1244 46E 2558 2558 5.635 8965 13504 18043 1699 6407 9078 70 2558 2558 1.0 4565 6108 7651 15143 2007 3086 Notes:

1) Operating pressure and temperature are 110 psi and 225°F. The design calculations were conservatively done for a pressure of 110 psi.

2)

Seismic OBE stresses are 1/2 the faulted DBE stress values.

QAE17 REV 8/96

SCE Calc M-DSC-445, Rev 0

Subject:

Flaw Evaluation of ECCS Schedule 10s Piping SNPTECH?

ENGINUIFtNGG SC$IENCE D TEC;HNOLOGY Sheet 77 of 108 Made by:

Date:

Client:

Calculation No.:

AES-C-7384-2 RCC 5/14/10 SCE Checked by:

Date:

Project No.:

Title:

Allowable Through-Wall Flaws in ECCS CQL 5/14/10 AES-10027384-2Q Schedule 10s Piping at SONGS Units 2 & 3 Revision No.:

Document Control No.:

Page No.:

0 1-2 70 of 101 Table A10-3B Pipe Design Stress Summary for ECCS Piping - NPS 24 Line 1204ML004 - ECCS All Train B Operating Upset Faulted Expansion am DW*

yb [

b a*e Node Item (psi) 1OBB 2558 383 1135 1887 1850 15E 2558

-328 "845 1362 1294

'20 2558 5719 9829 13939 3085 25 2558 8706 12302 15898 2345 38 2558 5270 7190 9110 2120 44BB 2558 1447 2282 3117 2146 45 2558 868 1490 2112 2131 46E 2558 1516 2590 3664 302 70 2558 2007 3550 5093 15143 2345 Max Envelop (psi) 2558 8706 12302 15898 (ent 1(see note)

• Note: The combination of worst case faulted plus expansion stress yielded an unacceptable result. It was determined by SCE that the stress for Node 25 was bounding to the other nodes and was therefore used in the calculation for the 24 NPS pipe (Ref. 10).

QAE17 REV 8/96

SCE Calc M-DSC-445, Rev 0

Subject:

Flaw Evaluation of ECCS Schedule 1 0s Piping

-ý! PTEX Sheet 78 of 108 Made by:

Date:

Client:

Calculation No.:

AES-C-7384-2 RCC 5/14/10 SCE Checked by:

Date:

Project No.:

Title:

Allowable Through-Wall Flaws in ECCS CQL 5/14/10 AES-10027384-2Q Schedule 10s Piping at SONGS Units 2 & 3 Revision No.:

Document Control No.:

Page No.:

0 1-2 71 of 101 A.11 ECCS RWST Crosstie (Line 1219ML068)

The allowable flaw lengths for the ECCS RWST crosstie piping are calculated in Section A. 11. Stress values were extracted from the SCE stress summaries (Ref. 7, Attachment 10). The allowable flaw length results are given in Tables Al 1-1 and Al 1-2. The stress summaries used in the evaluation are given in Table Al 1-3 for the 24 NPS Schedule 1Os piping.

Two material conditions were evaluated: flux-welded pipe by SAW or SMAW process, and TIG welded and wrought pipe. For the butt welds using SAW or SMAW, the following allowable flaw lengths were determined:

Table Al1-1 Summary of Allowable Through-Wall Flaw Length Results ECCS RWST Crosstie Piping (SAW and SMAW)

Allowable Combined Membrane Length Stress Stress Lg Pipe OD Loading Criteria Criteria f

-allow

% OD Limiting Line Size in)

Condition

'0n)

(in)

(in)

Circum.

Condition 1219ML068 24 24.00 Upset 41.74 54.12 4

54.9%

Faulted SIFaulted 41.38 J 57.98 For TIG welds and wrought pipe, the following allowable flaw lengths were determined:

Table All-2 Summary of Allowable Through-Wall Flaw Length Results ECCS RWST Crosstie Piping (TIG and Wrought)T Allowable Combined Membrane Length Stress Stress Pipe OD Loading Criteria Criteria fallow

% OD Limiting Line Size i

Condition (n

(in)

(in)

Circum.

Condition 1219ML068 24 24.00 Upset 51.11 57.00 50.79 67.4%

Faulted Faulted 1

50.79 60.35 11 1

QAE17 REV 8/96

SCE Calc M-DSC-445, Rev 0

Subject:

Flaw Evaluation of ECCS Schedule 10s Piping ENGINEERING 8 SCIE TQ 7ECHNOLOGY Sheet 79 of 108 Made by:

Date:

Client:

Calculation No.:

AES-C-7384-2 RCC 5/14/10 SCE Checked by:

Date:

Project No.:

Title:

Allowable Through-Wall Flaws in ECCS CQL 5/14/10 AES-10027384-2Q Schedule 10s Piping at SONGS Units 2 & 3 Revision No.:

Document Control No.:

Page No.:

0 1-2 72 of 101 Table A11-3A Pipe Design Stress Summary for ECCS Piping - NPS 24 Line 1204ML068 - RWST Crosstie Design Operating ASME Section III Code Stresses Pm Pm SIF Eq. 8 Eq. 9U Eq. 9F Eq. 10 DW DBE Node Item (psi)

(psi)

(i)

(psi)

(psi)

(psi)

(psi)

(psi)

(psi) 30T-E 582 349 1.0 685 993 1301 304 103 616 24B-E 582 349 7.38 746 1586 2426 798 164 1680 26B-E 582 349 5.64 481 1058 1635 2284

-101 1154 Notes:

1) 2)

3)

Operating pressure and temperature are 15 psi and ambient.

Seismic OBE stresses are 1/2 the faulted DBE stress values.

Because of limited data, SIF is conservatively assumed to be 1.0 in all cases.

Table A11-3B Pipe Design Stress Summary for ECCS Piping - NPS 24 Line 1219ML068 - RWST Crosstie Operating Upset Faulted Expansion Gm DW*

Ub ab Ge Node Item (psi)

(psi)

(psi))

(psi)

(psi) 30T-E 349 103 644 952 304 24B-E 349 164 1237 2077 798 26B-E 349

-101 709 1286 2284 Max Envelop (psi) 349 164 1237 2077 2284 QAE17 REV 8/96

SCE Calc M-DSC-445, Rev 0

Subject:

Flaw Evaluation of ECCS Schedule 10s Piping Sheet 80 of 108 APTECH 41, U SCIENCE a r7CKKOLQO Made by:

Date:

Client:

Calculation No.:

AES-C-7384-2 RCC 5/14/10 SCE Checked by:

Date:

Project No.:

Title:

Allowable Through-Wall Flaws in ECCS CQL 5/14/10 AES-10027384-2Q Schedule 10s Piping at SONGS Units 2 & 3 Revision No.:

Document Control No.:

Page No.:

0 1-2 73 of 101 A.12 ECCS Mini Flow Piping Downstream of Isolation Valves The allowable flaw lengths for the ECCS Mini Flow piping downstream of the isolation valves were determined from the calculations described in Section A.12. Stress values were extracted from the SCE stress summaries (Ref. 7, Attachments 9 and 13). The allowable flaw length results are given in Tables A12-1 and A12-2. The stress summaries used in the evaluation are given in Tables A12-3 through A12-7 for the 2.5, 4, 6 and 10 NPS Schedule 1Os piping.

Two material conditions were evaluated: flux-welded pipe by SAW or SMAW process, and TIG welded and wrought pipe. For the butt welds using SAW or SMAW, the -following allowable flaw lengths were-determined:

Table A12-1 Summary of Allowable Through-Wall Flaw Length Results ECCS Mini Flow Piping Downstream of Isolation Valves (SAW and SMAW)

Allowable Combined Membrane Length Stress Stress Length Pipe OD Loading Criteria Criteria

-tallow

% OD Limiting Line Size.inL Condition (in)

(inL (in)

Circum.

Condition 1204ML180 2.5 2.875 Upset 2.23 6.55 1.65 18.3%

Faulted Faulted 1.65 7.00 1204ML131 4

4.5 Upset 6.16 10.11 5.88 41.6%

Faulted Faulted 5.88 10.84 1204ML151 4

4.5 Upset 3.97 10.1.1 3.68 26.0%

Faulted Faulted 3.68 10.84 1204ML080-6 6.625 Upset 3.14 14.24 2.60 12.5%

Faulted Faulted 2.60 15.43 1219ML107 10 10.75 Upset 10.39 21.90 10.39 30.8%

Upset Faulted 11.02 24.04 QAE17 REV 8/96

SCE Caic M-DSC-445, Rev 0

Subject:

Flaw Evaluation of ECCS Schedule 10Os Piping APEH Sheet 81 of 108 Made by:

Date:

Client:

Calculation No.:

AES-C-7384-2 RCC 5/14/10 SCE Checked by:

Date:

Project No.:

Title:

Allowable Through-Wall Flaws in ECCS CQL 5/14/10 AES-10027384-2Q Schedule 10s Piping at SONGS Units 2 & 3 Revision No.:

Document Control No.:

Page No.:

0 1-2 74 of 101 For TIG welds and wrought pipe, the following allowable flaw lengths were determined:

Table A12-2 Summary of Allowable Through-Wall Flaw Length Results ECCS Mini Flow Piping Downstream of Isolation Valves (TIG and Wrought)

Allowable Combined Membrane.

LAloae Stress Stress Length Pipe OD Loading Criteria Criteria failow

% OD Limiting Line Size (in)

Condition (in)

(in)

(in)

Circum.

Condition 1204ML180 2.5 2.875 Upset 3.48 6.74 2.98 33.0%

Faulted I

Faulted 2.98 7.16 1204ML131 4

4.5 Upset 7.79 10.44 7.50 53.0%

Faulted Faulted 7.50 11.11 1204ML151 4

4.5 Upset 6.43 10.44 6.14 43.5%

Faulted Faulted 6.14 11.11 1204ML080 6

6.625 Upset 9.01 14.81 8.49 40.8%

Faulted Faulted 8.49 15.90 1219ML107 10 10.75 Upset 16.00 23.07 16.00 47.4%

Upset

_______Faulted 16.66 25.01 QAE17 REV 8/96

SCE Calc M-DSC-445, Rev 0

Subject:

Flaw Evaluation of ECCS Schedule 10s Piping

-NGINUMN06 SCIENCE G TECHNOLOGY Sheet 82 of 108 Made by:

Date:

Client:

Calculation No.:

AES-C-7384-2 RCC 5/14/10 SCE Checked by:

Date:

Project No.:

Title:

Allowable Through-Wall Flaws in ECCS CQL 5/14/10 AES-10027384-2Q Schedule 10s Piping at SONGS Units 2 & 3 Revision No.:

Document Control No.:

Page No.:

0 1-2 75 of 101 Table A12-3A Pipe Design Stress Summary for ECCS Piping - NPS 2.5 Line 1204ML180- Between PSV9308 and Mini Flow Tie Design Operating ASME Section III Code Stresses Ps Pm SIF Eq. 8 Eq. 91 Eq. 9F Eq. 10 DW DBE Node Item (psi)

(psi)

(i)

(psi)

(psi)

(psi).

(psi)

(psi),

(psi)-_

250 tangent 394 394 2.806 2176 10116 18056 5309 1782 15880 255 elbow 394 394 2.349 1725 6046 10366 4973 1331 8641 260 394 394 1.9 809 1 2034 3258 3397 415 2449 Notes:

1) 2)

3)

Operating pressure and temperature for NPS 2.5, 4 and 6 are 50 psi and 275°F, and 15 psi and ambient for NPS 10.

Seismic OBE stresses are 1/2 the faulted DBE stress values.

Because of limited data, SIF is conservatively assumed to be 1.0 in all cases.

Table A12-3B Pipe Design Stress Summary for ECCS Piping - NPS 2.5 Line 1204ML180 - Between PSV9308 and Mini Flow Tie Operating Upset Faulted Expansion OTm DW*

(Fb Crb C~e NodeOpeem (psi)

(psi))

Ie(psi)

(psi) 250 tangent 394 1782 9722 17662 5309 255 elbow 394 1331 5652 9972 4973 260 394 415 1640 2864 3397 Max Envelop (psi) 394 1782 9722 17662 5309 QAEI7 REV 8/96

SCE Calc M-DSC-445, Rev 0

Subject:

Flaw Evaluation of ECCS Schedule 10s Piping EGINEERING 0 M ECI E

IETK !OLOGY Sheet 83 of 108 Made bv:

Date:

Client:

Calculation No.:

AES-C-7384-2 RCC 5/14/10 SCE Checked by:

Date:

Project No.:

Title:

Allowable Through-Wall Flaws in ECCS CQL 5/14/10 AES-10027384-2Q Schedule 10s Piping at SONGS Units 2 & 3 Revision No.:

Document Control No.:

Page No.:

0 1-2 76 of 101 Table A12-4A Pipe Design Stress Summary for ECCS Piping - NPS 4 Line 1204ML131 - Between HV9347 and Mini Flow Tie Design Operating ASME Section III Code Stresses Pm Pm SIF Eq. 8 Eq. 9U Eq. 9F Eq. 10 DW DBE Node Item (psi)

(psi)

(i)

(psi)

(psi)

(psi)

(psi)

(psi)

(psi) 146 1511 432 2.0 2116 6244 10372 7002 605 8256 150 Elbow 1511 432 3.186 2442 8559 14677 11884 931 12235 160B 1511 432 1.0 1768 2970 4172 3128 257 2404 160 Elbow 1511 432 3.186 2229 6534 10839 12220 718 8610 160E 1511 432 1.0 1811 3613 5414 3835 300 3603 170B 1511 432 1.0 1854 2336 2819 3033 343 965 170 Elbow 1511 432 3.186 2330 3484 4637 9748 819 2307 175B 1511 432 1.0 1757 2681 3606 3465 246 1849 175 Elbow 1511 432 3.186 1667 4859 8040 12213 156 6373 176 Valve 1511 432 1.9 2487 5453 8418 6668 976 5931 Notes:

1) Operating pressure and temperature for NPS 2.5, 4 and 6 are 50 psi and 275°F, and 15 psi and ambient for NPS 10.

2)

Seismic OBE stresses are 1/2 the faulted DBE stress values.

QAE17 REV 8/96

SCE Calc M-DSC-445, Rev 0

Subject:

Flaw Evaluation of ECCS Schedule 10s Piping EINGINEIERING 0 SCIEN*E TECHRL0Y Sheet 84 of 108 Made by:

Date:

Client:

Calculation No.:

AES-C-7384-2 RCC 5/14/10 SCE Checked by:

Date:

Project No.:

Title:

Allowable Through-Wall Flaws in ECCS CQL 5/14/10 AES-10027384-2Q Schedule 10s Piping at SONGS Units 2 &3 Revision No.:

Document Control No.:

Page No.:

0 1-2 77 of 101 Table A12-4B Pipe Design Stress Summary for ECCS Piping - NPS 4 Line 1204ML131 - Between HV9347 and Mini Flow Tie Operating Upset Faulted Expansion am DW*

ab ab Cre Node Item (psi)

(psi)

(psi))

(psi)

(psi) 146 432 403 3875 6627 3501 150 Elbow 432 390 3401 5961 3730 160B 432 257 2538 3740 3128 160 Elbow 432 300 2554 4355 3836 160E 432 300 3181 4982 3835 170B 432 343 1904 2387 3033 170 Elbow 432 343 1277 1760 3060 175B 432 246 2249 3174 3465 175 Elbow 432 65 1853 3184 3833 176 Valve 432 685 3524 5604 3509 Max Envelop (psi) 432 685 3875 6627 3836 QAEI7 REV 8/96

SCE Calc M-DSC-445, Rev 0

Subject:

Flaw Evaluation of ECCS Schedule 10s Piping J

ARN 1

D CTECH IioLgY Sheet 85 of 108 Made bv:

Date:

Client:

Calculation No.:

AES-C-7384-2 RCC 5/14/10 SCE Checked by:

Date:

Project No.:

Title:

Allowable Through-Wall Flaws in ECCS CQL 5/14/10 AES-10027384-2Q Schedule 10s Piping at SONGS Units 2 & 3 Revision No.:

Document Control No.:

Page No.:

0 1-2 78 of 101 Table A12-5A Pipe Design Stress Summary for ECCS Piping - NPS 4 Line 1204ML151 - Between HV9306 and Mini Flow Tie Design Operating ASME Section III Code Stresses Pm Pm SIF Eq. 8 Eq. 9U Eq. 9F Eq. 10 DW DBE Node Item (psi)

(psi)

(i)

(psi) psL (psi)

(psi)

(psi) p 52 1511 432 1.8 1588 7732 13876 14722 77 12288 53 1511 432 1.8 1687 6384 11081 13064 176 9394 54AA 1511 432 1.0 1955 3356 4758 5676 444 2803 58 1511 432 1.0 2316 3439 4562 4506 805 2246 60B 1511 432 1.0 2016 3154 4291 4046 505 2275 60 Elbow 1511 432 3.186 2718 5437 8156 13942 1207 5438 60E 1511 432 1.0 1542 1812 2082 4207 31 540 63 1511 432 1.0 3043 7378 11713 2973 1532 8670 Notes:

1)

Operating pressure and temperature for NPS 2.5, 4 and 6 are 50 psi and 275°F, and 15 psi and ambient for NPS 10.

2)

Seismic OBE stresses are 1/2 the faulted DBE stress values.

Table A12-5B Pipe Design Stress Summary for ECCS Piping - NPS 4 Line 1204ML151 - Between HV9306 and Mini Flow Tie Operating Upset Faulted Expansion DW*

Gb Gb "e

Node Item (psi) i (si (psi) 52 432 57 5407 9959 8179 53 432 130 4409 7888 7258 54AA 432 444 2924 4326 5676 58 432 805 3007 4130 4506 60B 432 505 2722 3859 4046 60 Elbow 432 505 2095 3232 4376 60E 432 31 1380 1650 4207 63 432 1532 6946 11281 2973 Max Envelop (psi) 432 1532 6946 11281 8179 QAE17 REV 8/96

SCE Calc M-DSC-445, Rev 0

Subject:

Flaw Evaluation of ECCS Schedule 10s Piping M

R APTEcH CH ENGINEEMfNO 0 SCIENCE 0 TECHNOLOGY Sheet 86 of 108 Made by:

Date:

Client:

Calculation No.:

AES-C-7384-2 RCC 5/14/10 SCE Checked by:

Date:

Project No.:

Title:

Allowable Through-Wall Flaws in ECCS COL 5/14/10 AES-10027384-2Q Schedule 10s Piping at SONGS Units 2 & 3 Revision No.:

Document Control No.:

Page No.:

0 1-2 79 of 101 Table A12-6A Pipe Design Stress Summary for ECCS Piping - NPS 6 Line 1204ML080 - Between MU060 and MU068 Design Operating ASME Section III Code Stresses Pm Pm SIF Eq. 8 Eq. 9U Eq. 9F Eq. 10 DW DBE Node Item (psi)

(psi)

(I)

(psi)

(psi)

(psi) 20 Elbow 2033 581 3.817 2095 8475 14855 10596 62 12760 100 Elbow 2033 581 3.817 2904 4218 5532 20640 871 2628 46 1" Branch 2033 581 3.4 2459 3108 3757 9504 426 1298 900 Anchor 2033 581 1.0 2715 3513 4311 16083 682 1596 920 Pipe 2033 581 1.0 2378 2867 3356 14001 345 978 60A Pipe 2033 581 1.0 2265 3448 4632 9061 232 2367 40 3-Way Rest.

2033 581 1.0 3354 7478 11601 5481 1321 8247 5

2033 581 1.0 2640 4832 7024 2475 607 4384 10B 2033 581 1.0 2175 2778 3381 3246 142 1206 10 Elbow 2033 581 3.817 2440 4167 5894 13217 407 3454 10E 2033 581 1.0 2149 2701 3252 3085 116 1103 12 2033 581 4.78 2695 6857 11018 13099 662 8323 15B 2033 581 1.0 2183 3497 4810 3260 150 2627 15 Elbow 2033 581 3.817 2462 6223 9984 13968 429 7522 15E 2033 581 1.0 2155 3188 4221 3476 122 2066 16B 2033 581 1.0 2173 2837 3501 2880 140 1328 16 Elbow 2033 581 3.817 2562 5454 8345 10994 529 5783 16E 2033 581 1.0 2218 3228 4238 2316 185 2020 18 2033 581 1.0 3035 4840 6645 2217 1002 3610 21 2033 581 1.0 2359 4997 7635 4449 326 5276 25B 2033 581 1.0 2179 3195 4211 685 146 2032 25 Elbow 2033 581 3.817 2499 7715 12931 9004 466 10432 25E 2033 581 1.0 2195 4018 5840 2359 162 3645 28 2033 581 1.0 3159 8182 13205 4704 1126 10046 35B 2033 581 1.0 2166 3051 3935 2694 133 1769 35 Elbow 2033 581 3.817 2476 5373 8271 13878 443 5795 35E 2033 581 1.0 2187 3200 4212 3315 154.

2025 50 Tee 2033 581 2.806 3046 8964 14882 23362 1013 11836 50A 2033 581 1.0 2450 4902 7354 7864 417 4904 140 Tee 2033 581 2.806 2794 7385 11976 23202 761 9182 Special Cases: Away from Butt Weld 85 Guide 2033 581 1.0 4094 5943 7793 19925 2061 3699 Notes:

1)

Operating pressure and temperature for NPS 2.5, 4 and 6 are 50 psi and 275°F, and 15 psi and ambient for NPS 10.

2)

Seismic OBE stresses are 1/2 the faulted DBE stress values.

QAEI7 REV 8/96

SCE Calc M-DSC-445, Rev 0

Subject:

Flaw Evaluation of ECCS Schedule 10s Piping N I 0PTECHkL Sheet 87 of 108 Made by:

Date:

Client:

Calculation No.:

AES-C-7384-2 RCC 5/14/10 SCE Checked by:

Date:

Project No.:

Title:

Allowable Through-Wall Flaws in ECCS CQL 5/14/10 AES-10027384-2Q Schedule 10s Piping at SONGS Units 2 &,3 Revision No.:

Document Control No.:

Page No.:

0 1-2 80 of 101 Table A12-6B Pipe Design Stress Summary for ECCS Piping - NPS 6 Line 1204ML080 - Between MU060 and MU068 Operating Upset Faulted Expansion am DW*

"bb Gbe Node Item (psi)

(psi)

(psi))

(psi)

(psi) 20 100 46 900 920 60A 40 5

10B 10 10E 12 15B 15 15E 16B 16 16E 18 21 25B 25 25E 28 35B 35 35E 50 50A 140 Elbow Elbow 1" Branch Anchor Pipe Pipe 3-Way Rest.

Elbow Elbow Elbow Elbow Elbow Tee 581 581 581 581 581 581 581 581 581 581 581 581 581 581 581 581 581 581 581 581 581 581 581 581 581 581 581 581 581 581 22 304 167 682 345 232 1321 607 142 142 116 185 150 150 122 140 185 185 1002 326 146 163 162 1126 133 155 154 481 417 362 2757 1270 991 2932 2286 2867 6897 4251 2197 1253 2120 1751 2916 1971 2607 2256 1702 2647 4259 4416 2614 2492 3437 7601 2470 1674 2619 3983 4321 3233 4986 1729 1245 3730 2775 4051 11020 6443 2800 1856 2671 2911 4229 3285 3640 2920 2712 3657 6064 7054 3630 4314 5259 12624 3354 2686 3631 6795 6773 5415 2776 5407 2795 16083 14001 9061 5481 2475 3246 3463 3085 2740 3260 3659 3476 2880 2880 2316

.2217 4449 685 2359 2359 4704 2694 3636 3315 8326 7864 8269 Tee Max Envelop (psi) 581 1321 7601 12624 16083 QAE17 REV 8/96

SCE Calc M-DSC-445, Rev 0

Subject:

Flaw Evaluation of ECCS Schedule 10s Piping ENGINEERING 0 SIIC 0 DTECHI.NOOY Sheet 88 of 108 Made by:

Date:

Client:

Calculation No.:

AES-C-7384-2 RCC 5/14/10 SCE Checked by:

Date:

Project No.:

Title:

Allowable Through-Wall Flaws in ECCS CQL 5/14/10 AES-10027384-2Q Schedule 10s Piping at SONGS Units 2 & 3 Revision No.:

Document Control No.:

Page No.:

0 1-2 81 of 101 Table A12-7A Pipe Design Stress Summary for ECCS Piping - NPS 10 Line 1219ML107 - Between MU068 and T005 Design Operating ASME Section III Code Stresses Pm Pm SIF Eq. 8 Eq. 9U Eq. 9F Eq. 10 DW DBE Node Item (psi)

(psi)

(i)

(psi)

(psi)

(si (psi (psi)

(psi) 220 3/4" Branch 2720 777 4.1 8428 14432 20435 5217 5708 12007 230 Elbow 2720 777 4.55 5859 8721 11583 3232 3139 5724 250 Elbow 2720 777 4.55 3910 5709 7507 14205 1190 3597 247 3/4" Branch 2720 777 4.1 4657 6789 8921 11975 1937 4264 213 Taper 2720 777 1.9 5371 8260 11149 1247

.2651 5778 210 Taper 2720 777 1.9 3541 5204 6867 885 821 3326 190 Reducer 2720 777 2.0 4303 6580 8857 6545 1583 4554 215 Axial Restr.

2720 777 1.0 4597 6618 8639 805 1877 4042 258 Side Restr.

2720 777 1.0 2888 4011 5134

• 6496 168 2246 Notes:

1) Operating pressure and temperature for NPS 2.5, 4 and 6 are 50 psi and 2750F, and 15 psi and ambient for NPS 10.

2)

Seismic OBE stresses are 1/2 the faulted DBE stress values.

Table A12-7B Pipe Design Stress Summary forECCS Piping - NPS 10 Line 1219ML107 - Between MU068 and T005 Operating Upset Faulted Expansion Crm DW*

C

~b

. C*b

.(Ye Node Item (psi)

(psi)

(psi))

(psi)

(psi) 220 3/4" Branch 777 1856 4441 6393 1272 230 Elbow 777 920 2328 3167 710 250 Elbow 777 349 1445 1972 3122 247 3/4" Branch 777 630 1955 2648 2921 213 Taper 777 1860 5251 7279 656 210 Taper 777 576 3107 4274 466 190 Reducer 777 1055 3869 5387 3273 215 Axial Restr.

777 1877 5841 7862 805 258 Side Restr.

777 168 3234 4357 6496 Max Envelop (psi) 777 1877 5841 7862 6496 QAEI7 REV 8/96

SCE Calc M-DSC-445, Rev 0

Subject:

Flaw Evaluation of ECCS Schedule 10s Piping

£l PRPTECHII

,ENGINEEMNR N0 SCIENCE OTECHNOOhGY" Sheet 89 of 108 Made by:

Date:

Client:

Calculation No.:

AES-C-7384-2 RCC 5/14/10 SCE Checked by:

Date:

Project No.:

Title:

Allowable Through-Wall Flaws in ECCS CQL 5/14/10 AES-10027384-2Q Schedule 10s Piping at SONGS Units 2 & 3 Revision No.:

Document Control No.:

Page No.:

0 1-2 82 of 101 A.13 CVCS RWST between T006 and MU067 (Line 1219ML057)

The allowable flaw lengths for the CVCS RWST piping are calculated in Section A. 13. Stress values were extracted from the SCE stress summaries (Ref. 7, Attachment 8). The allowable flaw length results are given in Tables A13-1 and A13-2. The-stress summaries used in the evaluation are given in Table Al 3-3 for the 6 NPS Schedule 1 Os piping.

Two material conditions were evaluated: flux-welded pipe by SAW or SMAW process, and TIG welded and wrought pipe. For the butt welds using SAW or SMAW, the following allowable flaw lengths were determined:

Table A13-1 Summary of Allowable Through-Wall Flaw Length Results CVCS RWST between T006 and MU067 (SAW and SMAW) ifAllowable Combined Membrane Length Stress Stress Length Pipe OD Loading Criteria Criteria

-ealmw

% OD Limiting Line Size (in)

Condition (in)

(in)

(in)

Circum.

Condition 1219ML057 6

6.625 Upset 6.97 16.38 1

U Faulted 7.17 17.19 For TIG welds and wrought pipe, the following allowable flaw lengths were determined:

Table A13-2 Summary of Allowable Through-Wall Flaw Length Results CVCS RWST between T006 and MU067 (TIG and Wrought)

Allowable Combined Membrane Length Stress Stress Length Pipe OD Loading Criteria Criteria

-ealow

% OD Limiting Line Size (in)

Condition (in)in (in)

Circum.

Condition 1219ML057 6

6.625 Upset 14.06 16.77 1

f 6 F

e14.06 67.6%

Upset

___ I ____ I ___

_ [ Faulted L

14.53 17.51.

_ _1_

QAE17 REV 8/96

SCE Calc M-DSC-445, Rev 0

Subject:

Flaw Evaluation of ECCS Schedule 10s Piping a 1PTECHK 0

ENGINU*RING 0 SCIEINCE 8 TECHROOGQY Sheet 90 of 108 Made by:

Date:

Client:

Calculation No.:

AES-C-7384-2 RCC 5/14/10 SCE Checked by:

Date:

Project No.:

Title:

Allowable Through-Wall Flaws in ECCS CQL 5/14/10 AES-10027384-2Q Schedule 10s Piping at SONGS Units 2 & 3 Revision No.:

Document Control No.:

Page No.:

0 1-2 83 of 101 Table A13-3A Pipe Design Stress Summary for ECCS Piping - NPS 6 Line 1219ML057 - CVCS RWST between T006 and MU067 Design Operating ASME Section III Code Stresses Pm Pm SIF Eq. 8 Eq. 9U 1 Eq. 9F Eq. 10 DW DBE Node Item (psi)

(psi)

(I)

(psi)

[i)

(psi)

(psi)

(psii 5

174 174 1.0 607 706 805 12179 433 198 10BM 174 174 3.82 256 406 556 8152 82 300 55BE 174 174 3.82 320 418 516 9184 146 196 60BB 174 174 3.82 277' 341 405 7533 103 128 110TE 174 174 1.0 700 884 1068 15252 526 368 120TE 174 174 1.0 795 880 965 13766 621 170 125TE 174 174 1.0 730 873 1016 13409 556 286 130TE 174 174 1.0 898 1152 1406 14046 724 508 135BM 174 174 3.82 362 529 796 14620 188 434 145BB 174 174 3.82 1056 1437 1818 14074 882 762 150TE 174 174 1.0 1416 1702 1988 7255 1242 572 180BE 174 174 3.82 508 1152 1796 833 334 1288 Notes:

1)

Operating pressure and temperature are 15 psi and ambient.

2)

Seismic OBE stresses are 1/2 the faulted DBE stress values.

QAE17 REV 8/96

SCE Calc M-DSC-445, Rev 0

Subject:

Flaw Evaluation of ECCS Schedule 10s Piping NGNIEEMRNG 0 SCIEtNE : TECHNOLOGY Sheet 91 of 108 Made by:

Date:

Client:.

Calculation No.:

AES-C-7384-2 RCC 5/14/10 SCE Checked by:

Date:

Project No.: *

Title:

Allowable Through-Wall Flaws in ECCS CQL 5/14/10 AES-10027384-2Q Schedule 10s Piping at SONGS Units 2 & 3 Revision No.:

Document Control No.:

Page No.:

0 1-2 84 of 101 Table A13-3B Pipe Design Stress Summary for ECCS Piping - NPS 6 Line 1219ML057 - CVCS RWST between T006 and MU067 Operating Upset Faulted Expansion am DW*

ab ab ae Node Item (ps (psi)

(psi))

(psi)

(psi) 5 174 433

.532 631 12179 IOBM 174 29 81 133 2134 55BE 174 51 85 119 2404 60BB 1

174 36 58 81 1972 110TE 174 526 710 894 15252 120TE 174 621 706 791 13766 125TE 174

.556 699 842 13409 130TE 174 724 978 1232 14046 135BM 174 66 124 217 3827 145BB 174 308 441 574 3684 150TE 174 1242 1528 1814 7255 180BE 174 117 341 566 218 Max Envelop (psi) 174 1242 1528 1814 15252 QAE17 REV 8/96

SCE Calc M-DSC-445, Rev 0

Subject:

Flaw Evaluation of ECCS Schedule 10s Piping NG NiEERING 50 SCIfNE 0 TECHNOLOGY Sheet 92 of 108 Made by:

Date:

Client:

Calculation No.:

AES-C-7384-2 RCC 5/14/10 SCE Checked by:

Date:

Project No.:

Title:

Allowable Through-Wall Flaws in ECCS CQL 5/14/10 AES-10027384-2Q Schedule 10s Piping at SONGS Units 2 & 3 Revision No.:

Document Control No.:

Page No.:

0 1-2 85 of 101 A.14 SFP RWST between T006 and MU070 (Line 1219ML066)

The allowable flaw lengths for the SFP RWST piping are calculated in Section A.14. Stress values were extracted from the SCE stress summaries (Ref. 7, Attachment 7). The allowable flaw length results are given in Tables A14-1 and A14-2. The stress summaries used in the evaluation are given in Tables A14-3 and Al 4-4 for the 3 and 4 NPS Schedule 1 Os piping.

Two material conditions were evaluated: flux-welded pipe by SAW or SMAW process, and TIG welded and wrought pipe. For the butt welds using SAW or SMAW, the following allowable flaw lengths were determined:

Table A14-1 Summary of Allowable Through-Wall Flaw Length Results SFP RWST between T006 and MU070 (SAW and SMAW)

Allowable Combined Membrane Length Stress Stress Pipe OD Loading Criteria Criteria eal1ow

% OD Limiting Line Size (in)

Condition (in)

(in)

(in)

Circum.

Condition 1219ML066 3

3.50 Upset 5.61 9.07 5.06 46.0%

Faulted Faulted 5.06 9.42 1219ML066 4

4.50 Upset 5.13 11.42 4.89 34.6%

Faulted Faulted 4.89 11.92 For TIG welds and wrought pipe, the following allowable flaw lengths were determined:

Table A14-2 Summary of Allowable Through-Wall Flaw Length Results SFP RWST between T006 and MU070 (TIG and Wrought)

Allowable Combined Membrane Length Loading Stress Stress Length Pipe OD Conditio Criteria Criteria

-eallow

% OD Limiting Line Size (in) n (in)

(in)

(in)

Circum.

Condition 1219ML066 3

3.50 Upset 6.18 9.23 5.68 51.6%

Faulted Faulted 5.68 9.55 1219ML066 4

4.50 Upset 8.34 11.65 8.02 56.7%

Faulted Faulted 8.02 12.10 QAE 17 REV 8/96 C'I

SCE Calc M-DSC-445, Rev 0

Subject:

Flaw Evaluation of ECCS Schedule 10s Piping ENqGtUMV 0 MERGE OTECHROLOGY Sheet 93 of 108 Made by:

Date:

Client:

Calculation No.:

AES-C-7384-2 RCC 5/14/10 SCE Checked by:

Date:

Project No.:

Title:

Allowable Through-Wall Flaws in ECCS CQL 5/14/10 AES-10027384-2Q Schedule 10s Piping at SONGS Units 2 & 3 Revision No.:

Document Control No.:

Page No.:

0 1-2 86 of 101 Table A14-3A Pipe Design Stress Summary for ECCS Piping - NPS 3 Line 1219ML066 - SFP RWST between T006 and MU070 Design Operating ASME Section III Code Stresses Pm Pm SIF Eq. 8 Eq. 9U Eq. 9F Eq. 10 DW DBE Node Item (psi)

(psi)

(i) si si psi)

(psi)

(

(si 53 163 98 2.0 505 4132 7759 357 342 7254 Notes:

1) 2)

3)

Operating pressure and temperature are 15 psi and ambient.

Seismic OBE stresses are 1/2 the faulted DBE stress values.

Because of limited data, SIF is conservatively assumed to be 1.0 in all cases.

Table A14-3B Pipe Design Stress Summary for ECCS Piping - NPS 3 Line 1219ML066 - SFP RWST between T006 and MU070 Operating Upset Faulted Expansion Tm DW*

• Cb a

C3b

, Oe Node Item (psi)

(psi)

(psi))

(psi)

(psi) 53 98 342 4034 7661 357 Max Envelop (psi) 98 342 4034 7661 357 "C,.-,

QAE17 REV 8/96

SCE Caic M-DSC-445, Rev 0

Subject:

Flaw Evaluation of ECCS Schedule 10s Piping ENNE IN 0 CIENCE TECHNOLOGY Sheet 94 of 108 Made by:

Date:

Client:

Calculation No.:

AES-C-7384-2 RCC

.5/14/10 SCE Checked by:

Date:

Project No.:

Title:

Allowable Through-Wall Flaws in ECCS CQL 5/14/10.

AES-10027384-2Q Schedule 10s Piping at SONGS Units 2 & 3 Revision No.:

Document Control No.:

Page No.:

b 1-2 87 of 101 Table A14-4A Pipe Design Stress Summary for ECCS Piping - NPS 4 Line 1219ML066 - SFP RWST between T006 and MU070 Design Operating ASME Section III Code Stresses Pm Pm SIF Eq. 8 Eq. 9U Eq. 9F )Eq. 10I DW DBE Node Item (psi)

(psi)

(i)

(psi)

(psi1

(

(Ssi)

(psi)

(psi 32 215 [

129 4.048 1190 3414 5692 10316 975 4502 710 215 129 1.0 874 2347 3851 3474 659 2977 Notes:

1) Operating pressure and temperature are 15 psi and ambient.

2)

Seismic OBE stresses are 1/2 the faulted DBE stress values.

3)

Because of limited data, SIF is conservatively assumed to be 1.0 in all cases.

Table A14-4B Pipe Design Stress Summary for ECCS Piping - NPS 4 Line 1219ML066 - SFP RWST between T006 and MU070 Operating Upset Faulted Expansion oam DW*

OGb Crb ae Node Item (psi)

(psi)

(psi))

(psi)

(psi) 32 129 975 3285 5563 10316 710 129 659 2218 3722 3474 Max Envelop (psi) 129 975 3285 5563 10316 QAE17 REV 8/96

SCE Calc M-DSC-445, Rev 0

Subject:

Flaw Evaluation of ECCS Schedule 10s Piping SpTeCH1 ENGINEEJRING 13 SCIENC E G TECHRtOO~GY Sheet 95 of 108 Made by:

Date:

Client:

Calculation No.:

AES-C-7384-2 RCC 5/14/10 SCE Checked by:

Date:

Project No.:

Title:

Allowable Through-Wall Flaws in ECCS CQL 5/14/10 AES-10027384-2Q Schedule 10s Piping at SONGS Units 2 & 3 Revision No.:

Document Control No.:

Page No.:

0 1-2 88 of 101 Appendix B ECCS Schedule 10s Process and Instrumentation Diagrams The process and instrumentation diagrams (P&IDs) for the ECCS Schedule 1Os piping are listed in Table B-1. Also listed are the calculations numbers for some of the subsystems. A summary listing of the P&ID references is given in Table B-2. Copies of the P&IDs (Ref. 8) follow at the end of this appendix.

QAEI7 REV 8/96

SCE Calc M-DSC-445, Rev 0

Subject:

Flaw Evaluation of ECCS Schedule 10s Piping M

ASPTE. 0 fx"efuir.I (2N smu5e a TECm*omay Sheet 96 of 108 Made by:

Date:

Client:

Calculation No.:

AES-C-7384-2 RCC 5/14/10 SCE Checked by:

Date:

Project No.:

Title:

Allowable Through-Wall Flaws in ECCS CQL 5/14/10 AES-10027384-2Q Schedule 10s Piping at SONGS Units 2 & 3 Revision No.:

Document Control No.:

Page No.:

0 1-2 89 of 101 Table B-1 Summary of ECCS Subsystem Descriptions and P&ID Reference High Energy Subsystem Line Section Description P&ID Line 40112A Rev 35 40112ASO3 Rev 38 1

RWST 1204ML001 Between T005 & HV9300 40122B Rev 26 No 40122BS03 Rev 21 40112A Rev 35.

2 ALL TRAIN A 1204ML001 Between HV9300 & MU001 40112AS03 Rev 38 No 40112A Rev 35 1204ML10810031 Bounded by Valves MU001, 40112AS03 Rev 38 3

ALL TRAIN A 007/009 MU003, MU007, MU010, and 40112B Rev 36 Yes 007/009 MU062 40112BSO3 Rev 37 40112A Rev35 Yes HPSI TRAIN A 1204ML007 Between MUO07 & P017 40112ASO3 Rev 38 5

HPSI COMMON 1204ML009 Between MU010, MU01 1&

40112A Rev 35 Yes P018 40112AS03 Rev 38 40112A Rev 35 Yes 6

ALL TRAIN A 1204ML003.

Between MU003 & HV9303 40112AS03 Rev 38 7

L TANA 24M03 Between HV9303 and 40112A Rev 35 Ye Emergency Sump 40112AS03 Rev 38 Yes Between "'T of Line ML003 40112B Rev 36 8

LPSI TRAIN A 1204ML032 adP1402B3Re37 Yes and P015 40112BS03 Rev 37 40112A Rev 35 9

CS TRAIN A 1204ML003 Between MU062 & P012 40112AS03 Rev 38 Yes 40114A Rev 15 40114AS03 Rev 15 10 RWST 1219ML073 Between T005 & MU075 40122B Rev 26 No

___________40122BS03 Rev 21 N

40112A Rev 35 11 RWST 1204ML002 Between T006 & HV9301 40112ASO3 Rev 38 No 40122B Rev 26 40122BS03 Rev 21 12 ALL TRAIN B 1204ML002 Between HV9301 & MU002 40112A Rev 35 No 40112A Rev 35 1204ML1 09/004/

Bounded by Valves MU002, 40112ASO3 Rev 38 13 ALL TRAIN B 031/008/010 MU004, MU009, MU011, 40112B Rev 38 Yes 031/008/010 MU005, and MU199 40112BSO3 Rev 37 40112BS0 Rev 37 14 HPSI TRAIN B 1204ML008 Between MU009 and P019 40112A Rev 35 Yes 40112AS03 Rev 38 Ye 40112A Rev 35 15 ALL TRAIN B 1204ML004 Between MU004 & HV9302 40112AS03 Rev 38 Yes 16 ALL TRAIN B 1204ML004 Between HV9302 and 40112A Rev 35 Yes Emergency Sump 40112AS03 Rev 38 17 LPSI TRAIN B 1204ML033 Between MU199 and P016 Yes 40112A Rev 35 18 CS TRAIN B 1204ML004 Between MU005 & P013 40112AS03 Rev 38 Yes 40114A Rev 15 40114AS03 Rev 15 19 RWST 1219ML072 Between T006 & MU074 40122B Rev26 No I

40122BS03 Rev 21 QAE17 REV 8/96

SCE Calc M-DSC-445, Rev 0

Subject:

Flaw Evaluation of ECCS Schedule 10s Piping MM5RPTEC HKOQ E.NCINEERM00 SC*IEINCE O TE{*HNCILM Sheet 97 of 108 Made by:

Date:

Client:

Calculation No.:

AES-C-7384-2 RCC 5/14/10 SCE Checked by:

Date:

Project No.:

Title:

Allowable Through-Wall Flaws in ECCS CQL 5/14/10 AES-10027384-2Q Schedule 10s Piping at SONGS Units 2 & 3 Revision No.:

Document Control No.:

Page No.:

0 1-2 90 of 101 Table B-1 Summary of ECCS Subsystem Descriptions and P&ID Reference (Cont'd)

High Energy Subsystem Line Section Description P&ID Line 20 RWST 1219ML068 RWST Crosstie 40122B Rev 26 No 40122BS03 Rev 21 Between HV9347 & mini flow 401 14D Rev 20 21 MINIFLOW 1204ML131 tie 40114DS03 Rev 19 Yes 22 MINIFLOW 1204ML151 Between HV9306 & mini flow 40114D Rev 20 Yes tie 40114DS03 Rev 19 23 MINIFLOW 1204ML1800 Between PSV9308 & mini flow 40114D Rev 20 tie 40114DS03 Rev 19 40114D Rev 20 24 MINIFLOW 1204ML080 Between Valves MU060 &

40114DS03 Rev 19 MU068 40122B Rev 26 40122BS03 Rev 21 Between Valves MU068 and 40122B Rev 26 25 MINIFLOW 1219ML107 T005 40122BS03 Rev 21 No 26 RWST 1219ML057 Between T006 & MU067 40122B Rev 26 (gravity feed to charging) 40122BS03 Rev 21 27 RWST 1219ML066 Between T006 & MU070 (to 40122B Rev 26 No SFP make up pump) 40122BS03 Rev 21 r

Note: Items 8 and 17 are not evaluated because the piping is Schedule 20 QAE17 REV 8/96

SCE Calc M-DSC-445, Rev 0

Subject:

Flaw Evaluation of ECCS Schedule 10s Piping E KINEEiNO 0 I~ENCF DUCHNOLM Sheet 98 of 108 Made by:

Date:

Client:

Calculation No.:

AES-C-7384-2 RCC 5/14/10 SCE Checked by:

Date:

Project No.:

Title:

Allowable Through-Wall Flaws in ECCS CQL 5/14/10 AES-10027384-2Q Schedule 10s Piping at SONGS Units 2 & 3 Revision No.:

Document Control No.:

Page No.:

0 1-2 91 of 101 1.

2.

3.

4.

5.

6.

7.

8.

9.

10.

Table B-2 Summary of P&ID References P&ID 40112A, Rev 35, Safety Injection System - System No. 1204 P&ID 40112AS03, Rev 38, Safety Injection System - System No, 1204 P&ID 40122B, Rev 26, Fuel Pool Cooling System - System No. 1219 P&ID 40122BS03, Rev 21, Fuel Pool Cooling-System - System No. 1219.

P&ID 40112B, Rev 36, Safety Injection System - System No. 1204 P&ID 40112BS03, Rev 37, Safety Injection System - System No. 1204 P&ID 40114A, Rev 15, Containment Spray System - System No. 1206 P&ID 40114AS03, Rev 15, Containment Spray System - System No. 1206 P&ID 40114D, Rev 20, Containment Spray System - System No. 1206 P&ID 40114DS03, Rev 19, Containment Spray System - System No. 1206 QAEI 7 REV 8/96