DOCKET ¹0500027505000323

SUBJECT: Forwards Rev- 12 to "DCPP IST Program Second Ten-YRInterval."

DISTRIBUTION CODE'047D COPIES RECEIVED'LTR i ENCL lSIZE'ITLE:

OR Submittal: 1nservice/Testing/Relief from ASME Code — GL-89-04

NOTES:

'CATEGORY 1RE'UULATO INFORMATION DISTRIBUTION OSTEM (RIDE)

44

ACCESSION NBR:9708150031 DOC.DATE: 97/'08/08 NOTARIZED: NO

FACIL:50-275 Diablo Canyon Nuclear Power Plant, Unit 1, Pacific Ga50-323 Diablo Canyon Nuclear Power Plant, Unit 2, Pacific Ga

AUTH. NAME AUTHOR AFFILIATIONPOWERS,R.P. Pacific Gas a Electric Co.

RECIP.NAME RECIPIENT AFFILIATION lj.'W~Document Control Branch (Document Control Desk)

RECIPIENTID CODE/NAME

PD4-2 LABLOOM,S

INTERNAL: AILE CENTE888

RES/DET/EIB

EXTERNAL: LITCO ANDERSONNRC PDR

COPIESLTTR ENCL"1 1

1 1

1 11 11 11 1

1 11 1

RECIPIENTID CODE/NAME

PD4-2 PD

AEOD/SPD/RABNRR/DE/EMEBOGC/HDS3RES/DET/EMMEB

NOAC

COPIESLTTR ENCL

1 1

1 11 11 01 1

1 1

NOTE TO ALL "RIDS" RECIPIENTS:PLEASE HELP US TO REDUCE WASTEl CONTACT THE DOCUMENT CONTROL DESKSROOM OWFN SD-5(EXT. 415-2083) TO ELIMINATE YOUR NAME FROMDISTRIBUTION LISTS FOR DOCUMENTS YOU DON'T NEED!

TOTAL NUMBER OF COPIES REQUIRED: LTTR 14 ENCL 13

I

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II

Pacific Gas and Electric Company Diablo Canyon Power Plant

P.O. Box 56Avila Beach, CA 93424

805/5454000

Robert P. Powers

Vice President-Diablo Canyon

Operations and Plant Manager

T

A'ugust 8, 1997

PGRE Letter No. DCL-97-134

U.S. Nuclear Regulatory CommissionATTN: Document Control DeskWashington, DC 20555-0001

Docket No. 50-275, OL-DPR-80Docket No. 50-323, OL-DPR-82Diablo Canyon Units 1 and 2Inservice Testin IST Pro ramPlan Revision12

Dear Commissioners and Staff:

Enclosed for your information is the Diablo Canyon Power Plant (DCPP) Units 1

and 2 Inservice Testing Program Plan, Revision 12. Submittal of the ISTProgram Plan is in accordance with the guidance provided in NUREG-1482,Question Group 61.

The Safety Evaluation dated June 24, 1997, denied two relief requests, P-RR1and V-RR12. These relief requests were submitted with the IST Program-Second Ten-Year Testing Interval, dated December 29, 1995. Both ReliefRequests P-RR1 and V-RR12 were removed in Revision 12 of the Program

'lan.

A detailed summary of other revisions to the IST Program Plan for Revision 12 isincluded in the attachment.

Sincerely,

Robert P. Powers

I'nclosure

9708i5003i 970808PDR ADQCK 05000275P PDR

IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII

/

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Document Contro eskAugust 8, 1997Page 2

cc: Steven D. Bloom w/aEllis W. MerschoffKenneth E. PerkinsMichael D. TschiltzDiablo Distribution

GRC/469

J

SUMMARY OF CHANGES TO THE ZST PROGRAM PLAN

REVZSZON 12

page 1 of 9

SECOND TEN-YEAR ZNTERVAL

Listed below are the significant revisions to the IST Program Plan forrevision 12.

A. Introduction1. Added "HOT STANDBY AS THE SAFE SHUTDOWN CONDITION" statement to theintroduction.

B. Pumps

1. Added relief request number 3 for Centrifugal Charging Pumps.This relief request asks for relief from measuring total pump flowduring the quarterly pump surveillance test, in that the pumpminiflow recirculation flow would not be measured but normalcharging flow would be measured. On a refueling frequency, the pumpwould be tested at full or substantial flow conditions using a secondset of reference values.

2. Deleted relief request number 1 for all pumps. This relief requesthad asked for relief on digital gauge ranges. NRR has denied thisrequest .

C. Pump Relief Requests

D.

1. Added pump relief request P-RR3 for Centrifugal Charging Pumps.

2. Deleted pump relief request P-RRl because NRR has rejected thisrelief request as part of their review of revision 11 to the ISTProgram Plan.

Valves

The following manual valves have been added as a result of theirinclusion in FSAR Table 3.9-9 "List of Active Valves" and thatthese valves are credited in the safety analysis for being capableof being repositioned to mitigated the consequences of anaccident.

a. System 14 Component Cooling Water System. These valves will befull stroke tested on a quarterly frequency except for CCW-4 andCCW-5 which will be full stroke tested on a refueling outagefrequency and partially stroke tested on a quarterly frequency.

CCW-4 CCW-5 CCW-.16 CCW-17CCW-18 CCW-19 CCW-23 CCW-24

b. System 18 Fire Protection System; These valves were alreadybeing stroke tested on a quarterly frequency by STP V-3P4.

FP-306 FP-307

2.

CCW-RV-305CCW-RV-307CCW-RV-309CCW-RV-311CCW-RV-313

CCW-RV-49CCW-RV-55CCW-RV-186CCW-'RV-187CCW-RV-189

The following relief valves were removed from the program planbecause they do not protect components required to achieve ormaintain safe shutdown. These valves only protect components whenthey are isolated for maintenance.

CCW-RV-191CCW-RV-192CCW-RV-302CCW-RV-303CCW-RV-304

l lQRl SQQKl

page 2 of 9

Added position indication test for RHR-HCV-637 and RHR-HCV-638RHR Heat Exchanger Outlet Valves because the monitor lights areused to stroke time test the valves. This is per guidance inNUREG-1482 section 4.2.6.

Added position indication test for steam generator feedwaterregulating valves FW-FCV-510, -520, -530, -540, and steamgenerator feed regulator bypass valves FW-FCV-1510, -1520, -1530,and 1540 because the monitor lights are used to stroke time testthe valves. This is per guidance in NUREG-1482 section 4.2.6.

Corrected valve types from "GATE" to "GLOBE" for the followingsystem 04 valves: Steam Generator Sample Isolation Valves FCV-244, -246, -248, -250 and Steam Generator Blowdown IsolationValves FCV-760, -761, -762, and -763.

Corrected valve types from "DIAPHRAGM" to "BALL" for system 07valve RCS-8029.

Deleted partial stroke test for system 09 Accumulator Outlet CheckValves SI-8956A,B,C and D. Zn revision 10 of the ZST programplan, 8956A-D full stroke test was changed from disassemble andinspect to "Non-Intrusive Test" which fully strokes the valve.If disassembly is required, technical justification exists.toverify full stroke prior to reassembly.

Deleted manual stroke test for system 10 RCS Loop 4 to RHRisolation valves RHR-8701 and RHR-8702 and added power operatedvalve stroke time test. The valves will be stroke timed in bothdirections with maximum stroke time of 160 seconds. See ColdShutdown justification V-CS31.

Changed frequency for stroke test of CVCS-8440 from Cold Shutdownto Refueling Outage. This check valve is the Volume Control Tankoutlet and is stroke tested in the closed direction. SeeRefueling Outage justification ROll.

Changed stroke test frequency for Containment Purge Supply valvesVAC-FCV-660 and -661 and Containment Purge Exhaust valves VAC-RCV-11 and -12 from Refueling Outage to Cold Shutdown. Also changedstroke test procedure number to STP V-3T7 ~ See Cold Shutdownjustification V-CS29.

Changed stroke test frequency for Containment ExcessPressure/Vacuum Relief valve VAC-FCV-662, Containment ExcessPressure Relief Valve VAC-FCV-663 and Containment Vacuum Reliefvalve VAC-FCV-664 Refueling Outage to Quarterly. Deleted thesevalves from old refueling outage justification V-R011.

Changed frequency of valve stroke time test for steam generatorfeedwater regulating valves FW-FCV-510, -520, -530, -540, andsteam generator feed regulator bypass valves FCV-1510, -1520,1530, and -1540 from Refueling Outage to Cold Shutdown because thevalves are required to be tested on a Cold Shutdown frequency byTechnical Specif ication Surveillance requirement 4 . 7 . 1. 7 .1.

page 3 of 9

13. Changed procedure number for system 09 valves SZ-8803A and Sl-8803B'troke time test from STP M-16B to STP V-3Ell; and changedprocedure number for system 08 valves 8478A and 8478B from P-2B toP-CCP.

14. Changed several procedure numbers for valve stroke time tests.Changes are summarized below:

07 8000A STP V-3Ji/STP V-3J1A

07 8000B STP V-3J1/STP V-3J1B

07

09

8000C

8821A

STP V-3Ji/STP V-3J1C

STP V-3L2/STP V-3L2A

09 8821B STP V-3L2/STP V-3L2B

09 8923A STP V-3L10/STP V-3L10A

09 8923B STP V-3L10/STP V-3L10B

10 FCV-641A STP V-3M1/STP V-3M1A

10 FCV-641B STP V-3M1/STP V-3MlB

10 HCV-637 STP V-3M2/STP V-3M2B

10 HCV"638 STP V-3M2/STP V-3M2A

10 8700A STP V-3M4/STP V-3M4A

10 8700B STP V-3M4/STP V-3M4B

15. Corrected Valve Type for RHR-RV-8707 and RHR-RV-8708 from CheckValve to Relief Valve.

16. Changed System 14 check valves CCW-581 and CCW-670, and System 08check valve 8109 test frequency from OM Part 1 to RefuelingOutage. Also changed procedure number from local leak rate testSTP V-620 and STP V-621 to new test procedures STP V-120 and STPV-121. Changed Test Requirement from Relief Valve test to FullStroke test of check valve. See Refueling Outage Justificationnumber V-R015.

17. Changed System 17 check valves SW-34, SW-170, SW-301 and SW-303procedure number from PM to STP V-18. STP V-18 is a procedure todisassemble and inspect the valves on a refueling outagefrequency.

18. Changed System 07 check valves RCS-508 and RCS-8028 test procedurenumber for exercising the check valves to STP V-18. The valveswill be disassembled and mechanically exercised on a refuelingoutage frequency. Changed the test frequency from OM Parti torefueling outage and change procedure requirement to disassemblyand manual exercise of check valve from partial stroke.

19.

page 4 of 9

Changed System 10 check valves RHR-8740A and RHR-8740B testprocedure number for exercising the check valves to STP V-18C.Deleted partial stroke test "if disassembled" because valve willno longer require disassembly when using non-intrusive testmethod. Changed relief request to refueling outage justificationnumber V-R012. Changed test requirement to non intrusive exerciseof check valve from disassembly.

20. Changed System 09 check valves SI-8818A,B,C S D test procedurenumber for exercising the check valves to STP V-18B. Deletedpartial stroke test "if disassembled" because valve will no longerrequire disassembly when using non-intrusive test method. Changedrelief request to refueling outage justification number V-R013.Changed test requirement to non intrusive exercise of check valvefrom disassembly.

21. Deleted partial stroke test "if disassembled" for SI-8948A,B,C,Dbecause valve will no longer require disassembly when using thenon-intrusive test method.

22. Added new Test Frequency notation "J" to signify new testingfrequency for 10CFRSO Appendix J, Option B. Changed Leak TestFrequency for the following valves to "J" which is the newperformanced based test frequency for containment isolation valvesdetermined by leak test performance history of the valve.~sstem 09

AXS-26AXS-208

~SSCBIII 07

RCS-512802880298034A8034B8045

~sstem 00r

810081128149A8149B8149C8152

~sstem 09

SI-1618871888088838961

~sstem 11

9354A9354B9355A9355B9356A9356B9357A9357B

page 5 of 9

~sstem 22

CS-31CS-329001A9001B

~sstem 14

CCN-581CCW-670FCV-356FCV-357FCV-361FCV-363FCV-749FCV-750

~sstem 19

FP-180 (Unit 1 only)FP-867 (Unit 2 only)FP-633

~sstem 19

FCV-253FCV-254FCV-255FCV-256FCV-257FCV-258FCV-260FCV-500FCV-5018767878787958796

~Sstem 23

FCV-654FCV-655FCV-656FCV-657FCV-658FCV-659FCV-668FCV-669FCV-678FCV-679FCV-681

page 6 of 9

~Sstem 25

AIR-S-200AIR-S-114A1R-I-585FCV-584

23. Changed System 08 normal and alternate charging valve stroke testprocedure frequency to Cold Shutdown from Quarterly for valves8146, 8147, 8378A, B, C and 8379A and B.

24. Changed frequency of system 08 check valve 8483 from "T"(ASME/ANSI OM Part 1) for relief valve testing to RefuelingOutage. See Refueling Outage frequency justification numberV-R017.

25. Changed System 03 Auxiliary Feedwater Level Control Valves stroketime test requirements to both open and closed for LCV-106,107, -108, -109, -110, -111, -113, and -115. See AR A0423300 fordetails.

page 7 of 9

Cold Shutdown Justification Statements

Added Cold Shutdown Justification V-CS29 for Containment PurgeSupply Isolation valves FCV-660 and FCV-661 and ContainmentExhaust Isolation valves RCV-11 and RCV-12. V-CS29 replacesRefueling Outage Justification V-R011 for these valves. Thisjustification is required because the stroke time frequency forthese valves has been changed from Refueling Outage to ColdShutdown.

Deleted Cold Shutdown Justification V-CS29 for CVCS Volume ControlTank outlet check valve 8440. The old V-CS29 is replaced byRefueling Outage Justification V-R011 for this valve. Thisjustification is required because the stroke time frequency forthese valves has been changed to Refueling Outage from ColdShutdown.

Added Cold Shutdown Justification V-CS31 for RCS Loop 4 to RHRsystem isolation valves RHR-8701 and RHR-8702. This justificationis required because of addition of power operated stroke time testof valves per STP V-3M5.

Added Cold Shutdown Justification V-CS32 for normal and alternatecharging valves 8146, 8147, 8378A,B,C and 8379A and B. Thesevalves are all stroke tested using STP V-3K5 which switches fromnormal charging to alternate charging and.back to normal. In theprocess, power operated valves 8146 and 8147 are full stroked andcheck valve 8378A,B,C and 8379A and B are stroked open.Westinghouse Infogram (WIG) 90-025 recommends not switching fromnormal to alternate charging during power operations because ofthe thermal transient induced on the alternate charging nozzle.See AR A0413166 for engineering response to WIG 90-025.

Refueling Outage Justification Statements

page 8 of 9

2.

Deleted Refueling Outage Justification V-R011 for ContainmentPurge Supply Isolation valves FCV-660 and FCV-661, ContainmentExhaust Isolation valves RCV-11 and RCV-12 and Containment ExcessPressure and Vacuum Relief Valves FCV-662, FCV-663 and FCV-664.V-CS29 replaces Refueling Outage Justification V-R011 for theseFCV-660 and FCV-661 and RCV-11 and RCV-12. FCV-662, -663 and -664no longer require Refueling Outage Justification because they arenow tested on a Quarterly frequency.

Added Refueling Outage Justification V-R011 for CVCS VolumeControl Tank outlet check valve 8440. The old V-CS29 is replacedby Refueling Outage Justification V-R011 for this valve. Thisjustification is required because the stroke time frequency forthis valve has been changed to-Refueling Outage from ColdShutdown.

6.

7.

8.

Added Refueling Outage Justification V-R012 for RHR to Hot Legs 1and 2 Check Valves RHR-8740A and RHR-8740B. This replaces Requestfor Relief V-RR7 because the valves will now be full stroke testedand verified using Non-Intrusive test on a refueling outagefrequency.

Added Refueling Outage Justification V-R013 for System 09 valvesSI-8818A, -8818B, -8818C and -8818D. This replaces Request forRelief V-RR9 because the valves will now be full stroke tested andverified using Non-Intrusive test on a refueling outage frequency.

Added Refueling Outage Justification V-R014 for System 07 valvesRCS-8028 and RCS-508. These check valves are in the combined ECCSrelief valve discharge header to the PRT. Revision 11 called fora partial stroke test per local leak rate test STP V-671 on an OMPart 1 frequency. These valves will now be partially stroked openand verified using Non-Intrusive test on a refueling outagefrequency.

Added Refueling Outage Justification V-R015 for System 08 and 14containment penetration bypass check valves CCW-581, CCW-670 andCVCS-8109. These check valves provide over pressure protectionfor containment penetrations 20, 21 and 45 when the penetrationsare isolated. These valves will be stroked open and flow verifiedthrough the valve to verify valve opening.

Added Refueling Outage Justification V-R016 for System 14 manualvalves CCW-4 and CCW-5 which are used for CCW suction header trainseperation. These valves will be partially stroke tested on aquart'erly frequency and full stroke tested on a refueling outagefrequency.

Added Refueling Outage Justification V-R017 for System 08 ChargingFlow to Cold Legs bypass check valve 8483. This valve will bestroked open on a refueling outage frequency so that the valve'ssafety function, opening to provide pressure relief can beassured.

Valve Relief Requests

page 9 of 9

3

Deleted Relief Request No. V-RR7. This relief request is nolonger required because RHR to Hot Legs 1 and 2 check valves RHR-8740A and RHR-8740B are now full stroke tested and verified usingNon-Zntrusive test on a refueling outage frequency.

Deleted Relief Request No. V-RR9. This relief request is nolonger required because RHR to Cold Legs 1,2,3 and 4 check valvesSZ-8818A, SZ-8818B, SZ-8818C.and SZ-8818D are now full stroketested and verified using Non-Zntrusive test on a refueling outagefrequency.

Deleted Relief Request No. V-RR12 because NRR has rejected itbased on their review of revision 11 of the ZST PP. No changes tothe valves testing program (Table 2.0) were required because thisrelief request had not been used.

.