ML20086S973
| ML20086S973 | |
| Person / Time | |
|---|---|
| Site: | Beaver Valley |
| Issue date: | 04/09/1991 |
| From: | Jason West, Robert Williams DUQUESNE LIGHT CO. |
| To: | |
| Shared Package | |
| ML20086S924 | List: |
| References | |
| 1BVT-1.11.3, NUDOCS 9201060082 | |
| Download: ML20086S973 (51) | |
Text
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DUQUESNE LIGHT COMPANY Deaver Valley Power Station Unit 1 1BVT 1.11.3 Si ACCUMULATOR DISCHARGE CHECK VALVES FULL STROKE TEST CATEGORYI issue 1 Revision 2 Technical Spec.hcations Surveillance Requirements frequency Perfortned R 4.0.5 _ Prepared by Date Pagesissued OSC Meeting Effettive Date (bl$khYb Q ? m , S / . % t . s .evt/ . fl .y.,.g, -/- 7 77 Reviewed by Date Approved by Date k (h) as W Y'"l~ / l/ g YYY % < l Approved for Use: Initials __ Date 9201060002 911227 PDR ADOCK 05000334 P PDH
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y Beaver Valley Power Station Unit 1 IBVT 1.11.3 e Issue 1 Revision 2 St ACCUMULATOR DISCHARGE CHECK VeLVES FULL STROKE TEST Contents I. PURPOSE 1
- 11. GENERAL TEST METHOD 2 111. 'cPECit,t TEST EQUIPMENT ,.
,,q . 3 IV. PREREQUlstTES 4 V. INITIAL CONDITIONS 0 VI. PRECAUTIONS AND LIMITATIONS 10 Vll. PROCEDURE 11 A. Blowdown of the 1 A SI Accurnulator [SI TK 1 A]. 11 B. Blowdown of the 1B SI Accuinulator [SI 1TK 1B]. 14 C. Blowdown of the 1C SI Accumulator [1SI TK 1C]. 18 D. Calculations .
. 22 Vill. ACCEPTANCE CRITERIA .
20, IX. REFERENCES 27 X. DATA SHEETS . 28 XI. FIGURES , 37 XI, TABLES .
< . . 44 XI. APPENDICES 45 L
ls Beaver Valley Power Station Unit 1 10VT 1.11.3 lssue 1 Revision 2 St ACCUMULATOR DISCHARGE CilECX VALVES FULL STROKE TEST Page 1 of 48
- 1. PURPOSE The purpose of this test is to verify the full stroke capability of the Safety Ing3ction Accuinulator Discharge Check Valves [SI 48,49,50,51,52,53), in accordance with ASME Section XI. Subsection IWV-3520.
This test also verifies the reinoto position indication for the Safety injection Accurnulator Dischargo Stop Valves [MOV 1SI 865A, B, & C) to satisfy ASME XI. Paragraph IWV 3300 requirernents. I l y 1 l l l l .. L J
Beaver Valley Power Station Unit i 1BVT 1.11.3 l lssue 1 Revision 2 Si ACCUMULATOR DISCHARGE CHECK VALVES FULL STROKE TEST Pago 2 of .38 i
- 11. GENERAL 7EST METHOD ,
Whilo Inonfiti og p'CW ret level and accurnulator pressure and volutno, lho Si accumulatort #1. Nd ' Idown, uno at a time, by stroking open the isolation valves. Tho stroko of turiiS Artp/r valves is observed locally to verify the retnoto position indication. The data ofstavel(r,r exh accumulator is then analytod to verily proper check valvo operation by re:npaling the plot of the actual accumulator pressuro vs. time to the calculated theoretical trarve; Aird by comparmg the actual flow rate to the calculated minimum flow required to full stFA,u open the check valves. [ 7. l l-i,sy , +.y
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- Deaver Valley Power Station Unit i 1BVT 1.11.3 Issue 1 Revision 2 SI ACCUMULATOR DISCHARGE CHECK VALVES FULL STROKE TEST Pago 3 of 48 Ill. SPECIAL TEST EQUIPMENT A. ITT XTR A personal computor (PC2) or equivalent.
B. Computer program "ACCTEST* (floppy clisk). C. Cahbratect stopwatch.
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s . . .___________-_-_.--__-_____-_________________________J
Beaver Valley Power Station Unit i 1BVT 1.11.3 Issue 1 Revision 2 SI ACCUMULATOR DISCHARGE CHECK VALVES FULL STROKE TEST Pago 4 of 48 IV. PREREQUISITES
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Note: If the pressure channel calibration has not been cornpleted during the present refueling outago, the as lound and as left calibration data inust bo obtained for review against the test results when the cahbration is performed.
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A. The following PVC data points are within their scheduled calibration frequency
- 1. LO480A PRESSURIZER 1 LEVEL L RC459
- 2. LO481A PRESSURIZER 2 LEVEL L RC460
- 3. LO482A PRESSURIZER 3 LEVEL L-RC461
- 4. LO484A PRZR WR COLD CAL. L EVEL L RC462 5, P0610A Si ACCUMULATOR 1A PRESS P-Sl021
- 6. P0011A Si ACCUMULATOR 1 A PRESS P-Sl023
- 7. POS20A St ACCUMULATOR 10 PRESS P Sl925
- 8. P0621A St ACCUMULATOR 1B PRESS P Stu27
- 9. P0630A St ACCUMULATOR 1C PRESS P Sl929
- 10. P0631A St ACCUMULATOR 1C PRESS P Sl031
- 11. PO498A RC WIDE RANGE LOOP PRESS P-RC403
- 12. PO409A RC WIDE RANGE LOOP PRESS P.RC402 l .
B. Verify / place the " STATUS" of the computer points for (MOV SI-865A,0.C] in the "ON" position per Appendix B.
/
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[, Beaver Valley Power Station Utill 1 1BVT 1.11.3 Issue 1 Revision 2 SI ACCUMULATOR DISCHARGE CHECK VALVES FULL STROKE TEST Page 5 of 48
- M P .w-fe+M+++eem e eA Nw.e my_%, , .
+,,y Note: A Temporary Databado Change Request forrn niay lie used to initiato the HDSR log setup.
C. The data points listed in IV.A are set up in a HDSR log on the PVC at a 5 setotui mierval by the ERF contputer group. Record (tio debignated l og nuniber on Appenda A, Step 4.
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Beaver Valley Power Station Unit 1 1BVT 1.11.3 4 Issue 1 Revision 2 SI ACCUMULATOR DISCHARGE CHECK VALVES FULL STROKE TEST Page 6 of 48 V. INITIAL CONDITIONS A. PjpnlSldbJs_Qhangej
- t. L yiejngpntabic.IIngh. SperJtema)
- a. NONE
- 2. Removestfrom Sgtylte (NoJ1 TeelL Sy m 1Le m s)
- a. NONE
- 3. P_locod in Failed Condition (Tegh. Sper, itemy)
- a. NONE
- 4. Allanments Affolte5j
- a. (MOV 1SI 865A, B, & C] St Accumulator Tank Dischargo Stop Valves, will be opened, one at-a-time, by inserting the banana plug and stroking the valves to blowdown the accumulators. (Steps Vll.A.10, Vll.B.12 Vll.C.12).
- 5. Spellpl Considerallpo.ny
- a. The potentlat to inject nitrogen into the RCS exists if the imtial accumulator pressure exceeds 170 PSIA with the RCS vented, g_nild n the isolation valve is left open longer than approximately 40 seconds.
b, If disk pressuritation is in service utilizing one of the accumulators, the disk pressurization system will have to be switched to another accumulator prior to blowing down that accumulator, i l B. (iSS/ANSS Sinn-on i
- 1. The plant is in Mode 5.
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Deaver Valley Power Station U.iit i IBVT 1.11.3 lssuc 1 Revision 2 St ACCUMULATOR DISCHARGE CHECK VALVES FULL STROKE TEST Page 7 of 48
- 2. Verify orie option:
A The overpressure protection system is in service per TS 3.4.0 3, with the RCS pressure at sorno nominal value (approximately 25 psig). 0 The RCS is vented through the pressurizer by 2 PORVs to the PRT which is also vented. (T.S 3.4 9.3) Circlu One Option A or D
- 3. Verify one option:
A The SI Accumulators have a boric acid concentration that is between 1D00 and 2100 ppm of boron per T.S. 3.5.1.c. B The SI Accumulators have a boric acid concentration equal to or greater than that of the RCS. C Flow through the reactor core is greater than 3000 gpm, per T.S. 3.1.1.3. Circle One Ophon A or D or C
- 4. NSS/ANS$ verify the follov ing:
- a. Section V.A. P'.,nt Status Changes, have been reviewed.
- b. Requirements of Section V.0, NSS/ANSS Sign-on have tieen verified.
- c. Performance of this procedure is authorized.
DATE: TIME: CURRENT PLANT MODE: NSS/ANSS Comments: l NSS / ANSS Signature _
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Beavnt Valley Power Station Unit 1 10VT 1.11.3 Issue 1 Revision 2 St ACCUMULATOR DISCHARGE CHECK VALVES FULL STROKE TEST Pago a of 48 e C. Rent 9LQpgr ; tprlims
- 1. Reactor Operator perforrn the following;
- a. Acknowled0o penormance of procedure.
Reactor Operator Signature D. _P_ocedure f h eier Initial Condillm) Per.f
- 1. The SI Accumulator to be tested contains between 7664 and 7810 gallrns and tho pressure is 100 PSIG (75125) abovo RCS pressure.
(A) / (B) / (C) / _ Note: If a redundant data point is not availablo, the test may be continued at the discretion of the lead test engincor if sufficient data may bo obtained without it.
- 2. At least one channel of the SI Accumulator pressuto and lovel instrumentation is in service and in current calibration.
(A) / (B) / (C) -/
- 3. The PRT is at a normal level if used as the RCS vont pa'h.
(A) / (B) / (C) / l 4. RadCon has boon notified of a possible change of airborne concentration near the PRT vont, jf the RCS is vented through the PRT. T (A) / (B) / (C) / L L 2
e Boaver Valley Power Station Unit i 1BVT 1.113 lssue 1 Revision 2 SI ACCUMULATOR DISCHARGE CHECK VALVES FULL STROKE TEST Page 9 of 48
- 5. Ensure that the Operator has been informed of tho potential to injoct mtrogen mto the RCS if the initial conditions for accumulator pressure are not followed (see Precaution VI.D).
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- 6. Communications are available between containtnent basement, elevatior1692' and the control room.
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- 7. The Si valves in the Accumulator Fill and Test linea ato in NSA with the following valves allUned as shown; ;
- a. [MOV 1SI 865A] SI Accumulator TK1 A Discharpo Stop Valvo is in the CLOSED position with the banana plug removed.
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- b. [MOV 1SI 86SB] St Accumulator TK1B Dischargo Stop Valvo is in the CLOSED position with the banana plug removed.
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- c. [MOV 1SI 865C) St Accumulator TK1C Dischargo Stop Valvo is in the CLOSED position with the banana plug removed.
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Beaver Valley Power Station Unit 1 1BVT 1.11.3 Issue 1 Revision 2 SI ACCUMULATOR DISCHARGE CHECK VALVES FULL STROKE TEST Page 10 of 48 VI. PRECAUTIONS AND LIMITATIONS A If SI Accumulator TK 1 A(B)(C) level or pressure indication becomes erratic, the affected e .comulator should be isolated and/cr vented. B. Following the performance of any test or procedure in which gas could have entered a safety injection line, the line must be completely fiiled and vented prior to the performance of this test. - C. Certain steps in this procedure involving the return of safety-related equipment or systems to NS A require independent verification. In these cases, the initials of the second knowledgeable person is necessary and will be identified by (2) two sign off lines lext to the appropriate procedural step. D. The potential to inject nitrogen into the RCS exists if the initial accumulator pressure exceeds 170 PSIA with the RCS vented and the isolation valve is left open longer than approximately 40 seconds (Reference IX.G). _ . _ _ _ _ _ _ _ _ _ _ _ - . _ - - . - _ - . _ - - - _ - - - - - - - - - - - - - - - - - - - - - - - - - " ' - " - - - - - - ^-- - --
Beaver Valley Power Station Unit 1 1BVT 1.11.3 Issue 1 Revision 2 St ACCUMULATOR DISCHARGE CHECK VALVES FULL STROKE TEST Pa0e 11 of 48 9 Vll. PROCEDURE Note: Sections Vll.A. Vil,B. and Vil,C of the procedure may be performed in any order and repeated as necessary. A. Blowdown of the 1 A Si Accumulator {SI TK-1 A].
- 1. Verify Initial Conditions and Prerequisites are complete.
_ _/ Note: See Precaution VI.D
- 2. Verify the accumulator pressure is 100 psig (75-125) above RC S pressure and record the initial pressure and the computer point used on Data Sht. at 1.
/
- 3. Record the initial 1 A accumulator level and the computer point used on Data Sheet 1.
/
- 4. Record the initial RCS pressure and the computer point used on Data Sheet 1.
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- 5. Reduce the indicated pressurizer level to between 10% and 15% and record the level and the computer point used or: Data Sheet 1. Lf the " hot cal" pressurizer level instrument is used convert indicated c 'l to actual level using Figure 2 and record on Data Sheet 1.
/ >
- 6. Verify no SI signal exists.
I SP -
Beaver Valley Power Station Unit 1 1BVT 1.11.3 Issue 1 Revision 2 St ACCUMULATOR DISCHARGE CHECK VALVES FULL STROKE TEST Page 12 of 48
- 7. Station a test engineer at [MOV 1SI 865A] and establish communications between the Control Room and the test enDineer.
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- 8. Inform the engi er : hat the valve is about to be stroked.
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- 9. Insert the banana plug for the St Accumulator TK1 A Discharge Stop Valve
[MOV-1SI-865A].. (Vertical Board, Section A). I
- 10. Provide a countdown for the test engineer in containment and stroke and time open
[MOV-1SI-865A]. Red indicating light bluminated. I
- a. Locally observe the stroke of [MOV 1SI-865A] to verify remote pcsition indication. 2 I
Note: See Precaution VI.D
- 11. When the accumulator blowdown is complete, as determined by:
- a. Accumulator pressure stops decreasing, or
- b. Pressurizer level approaches 50% on the cold cal. channel or 90% on the hot cal. channel, or
- c. Pressurizer level stabilizes, or e
- d. After approximately 30 seconds, then close and time closed [MOV-1SI-865A] Green indicating light illuminated.
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r-Beaver. Valley Power Station - Ur.it -1 1GVT 1.11.3 Issue-1 Revision 2 - SI ACCUMULATOR DISChnetGE CHECK VALVES FULL STROKE TEST Page 13 of 48 12, Verify the local test on0ineer witnessed the valve stroke. I
- 13. Remove the banana plu0 for the SI Accumulator TK1 A Discharge Stop Valve
[MOV 1SI-865A]c (Vertical Board. Section A) l i
- 14. Record the open and close timos of [MO%1SI 865A] and the cat. due dato and ID number of the stopwatch on Data Sheet 1.
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- 15. Reduce the indicated pressurizer level to between 10% and 15% if accumulator 1B or 1C is to be tested soon, or establish pressurizer level as directed by the NSS.
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- 16. Obtain the [MOV-1SI-865A] opening and closing times fro _m the event _ typewriter on PVC_ per Appendix B and record on Data Sheet 1.
i 17i Obtain a printout 'of the trend of computer points on PVC por Appendix A. I 18 Notify Operations that the data collection for the 1 A accumulator is complete and that prerequisites and initial conditions can be established for the 18 or 1C : accumulator, if this is the last accumulator to be tested, notify the NSS that the data-collection portion of this BVT is complete. l' I n Note: Data evaluation will be' completed in Section Vll.D.
- 19. Proceed to Section Vll.B or C if these accumulators have not been tested. If they have been tested, proceed to Section Vll.D.
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Beaver Valley Power Station Unit 1 1BVT 1.11.3 lssue 1 Revision 2 St ACCUMULATOR DISCHARGE CHECK VALVES FULL STROKE TEST Page 14 of 48 Note: Sections Vll.A, Vll.B. Vll.C of the procedure may be performed in any order and repeated as necessary. B. Blowdown of the 1B St Accumulator [SI 1TK-1B].
- 1. Verify Initial Conditions and Prerequirites are complete.
I N o'e: See Precaution VI.D
- 2. Verify the accuraulator pressure ;s 100 PSIG (75-125) above RCS pressure and record the initial pressure and the ::omputer point used on Data Sheet 2.
)
- 3. Record the initial 18 accumulator level and the computer point used on Data Sheet 2.
/
- 4. Record the initial RCS pressure and the corrputer point used on Data Sheet 2,
/
- 5. Reduce the indicated pressurizer level to between 10% and 15% anJ record the level and the computer point used on Data Sheet 2, if the " hot cal" pressurize vel Instrument is used, convert indicated level to actual level using Figure 2 and record on Data Sheet 2.
/
- 6. Verify open RH Return Valve [MOV-1RH-7208].
/
- 7. Close RH Return Valve [MOV 1RH-720A].
/
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Beaver Valley Power Station Unit 1BVT 1.11.3 lssue 1 Revision 2 St ACCUMULATOR OlSCHARGE CHECK VALVES FULL STROKE TEST Page 15 of 48
- 8. - Verify no SI signal exists.
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- 9. Station a test engineer at [MOV-1SI 865B] and establish communications between the Control Room and the test engineer.
/
- 10. Inform the engineer that the valve is about to be stroked.
I
- 11. Insert the banana plug for the St Accumulator TK1B Discharge Stop Valve
[MOV-1St-8658). (Vertical Board, Section A) I
- 12. Provide a countdown for the test engineer in containment and stroke and time open
[MOV-1SI-865B]. Red indicating light illuminated, I
- a. Locally observe the stroke of [MOV-1SI-865B] to verify the remote position indication.
1 Note: See Precaution VI.D
- 13. When the accumulator blowdown is complete as determined by;
- a. The Accumulator pressure stops decreasing, qr
- b. Pressurizer level approaches 50% on the cold cal. channel or 90% on the hot -
cal, channel, of
- c. Pressurizer level stabilizes, or
Beaver Valley Power Station Unit 1 1BVT 1,11.3 Issue 1 Revision 2 SI ACCUMULATOR DISCHARGE CHECK VALVES FULL STROKE TEST Page 16 of 48
- d. After approximately 30 seconds, i
t en close and time closed [MOV 1St 865B]. Green indicating light illuminated. I i
- 14. Verify the local test engineer witnessed the valve stroke.
I
- 15. Remove the banana plu0 for the Si Accumulator TK18 Dischargo Stop Valve
[MOV-1SI-865B]. (Vertical Board. Section A) I I
- 16. Open RH Return Valve [MOV-1RH-720A].
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- 17. Record the open and closing times of [MOV-1SI 865B] and the ID number and cal, due date of the stopwatch on Data Sheet 2.
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- 18. Reduce the indicateC pressurizer level to between 10% and 15% i.f accumulator 1 A or 1C is to be tested soon, or establish pressurizer level as directed by the NSS.
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- 19. Obtain the [MOV-1SI-865B] opening and closing times from the event typewriter on PVC per Appendix B and record on Data Sheet 2.
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- 20. Obtain a printout of the trend of computer points on PVC per Appendix A.
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Beaver. Valley Power Station Unit 1 _ - 1 BVT- 1.11.3 - , issue 1 Revision 2
. St ACCUMULATOR DISCHARGE CHECK VALVES FULL STROKE TEST Page 17 of 48
- 21. . Notify Operations that the data collection for the 1B accumulator is complete and
. that prerequisites and initial conditions can be established for the 1 A or 1C accumulator. H this is the last accumulator to be tested, notify the NSS that the data collection portion of this BVT is complete.
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Note: Data evaluation will be completed in Section Vll.D. ?- 22, Proceed to Section Vll.A or C if these accumulators have not been tested. If tho/ have been tested, proceed to Section Vil,D,
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Beaver Valley Power Station Unit i I BVT 1.11.3 Issue 1 Revision 2 SI ACCUMULATOR DISCHARGE CHECK VALVES FULL STROKE TEST Page 18 of 48 Note: Sections Vll.A, Vll B. Vll.C of the procedure may be performed in any order and repeated as necessary. C. Blowdown of the 1C SI Accumulator [1SI TK-1C].
- 1. Verify initial Conditions and Prerequisites are complete.
/
Note: See Precauticn VI.D
- 2. Verify the accumulator pressure is 100 PSIG (75-125) above RCS pressure and record the initial pressure and the computer point used on Data Sheet 3.
/
- 3. Record the initial 1C accumulator level and the computer point used on Data Sheet 3.
/
- 4. Record the initial RCS pressure and the computer poiM c;ed on Data Sheet 3.
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- 5. Reduce the indicated pressurizer level to between 10% and 15% and record the 9 level and the computer point used on Data Sheet 3. Lf the " hot cal" pressurizer level instrument is used, convert indicated level to actual level using Figure 2 and record on Data Sheet 3.
/
- 6. Verify open RH Return Valve [MOV 1RH-720A].
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- 7. Close RH Return Valve [MOV-1RH-720B].
/
/
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Beaver Valley Power Station Unit 1 1BVT 1.11.3 issue 1 Revision 2 St ACCUMULATOR DISCHARGE CHECK VALVES FULL STROKE TEST Page 19 of 48
- 8. Verify no Si signal exists.
/
- 9. Station a test engineer at [MOV-1SI 865C] and establish communications between the Control Room and the test engineer.
/__
- 10. Inform the engineer that the valve is about to be stroked.
I
- 11. Insert the banana plug for the SI Accumulator TK1C Discharge Stop Valve
[MOV-1SI-865C]. (Vertical Board, Section A) I
~
- 12. Provide a countdown for the test engineer in containment ano stroke and time open
[MOV 1SI-865C). I
- a. Locally observe the stroke of [MOV-1SI-865C] to verify remote position indication.
I Note: See Precaution VI.D
- 13. When the accumulator blowdown is complete, as determined by:
- a. Accumulator pressure stops decreasing, pr
- b. Pressurizer level approaches 50% on the cold cal channel or 90% on the hot cal. channel, or
- c. Pressurizer level stabilizes, pr
' ~ Beaver Valley Power Station Unit 1 1BVT 1.11,3 issue 1 Revision 2 SI ACCUMULATOR DISCHARGE CHECK VALVES FULL STROKE TEST- Page 20 of 48
- d. After approximately 30 seconds, then close and time closed [MOV-1SI-865C]. Green indicating light illuminated.
/
/
- 14. Verify the local
- ooineer witnessed the valve stroke.
/
- 15. Remove the banc ' -cumulator TK1C Discharge Stop Valve
[MOV 1SI-865C] .on A,
/
/
- 16. Open RH Return Valve [MOV-1RH 720B].
/
/
- 17. Record the open and close times of [MOV-1SI-865C] and t'.a ID number and cal, due date of the stopwatch on Data Sheet 3.
/
- 18. Reduce the indicated pressurizer level to between 10% and 15% if accumulator 1 A or 1B is to be tested soon, or establish pressurizer level as directed by the NSS.
/
- 19. Obtain the [MOV-1SI-865C] opening and closing times from the event typewriter on PVC per Appendix B and record on Data Sheet 3,
/
- 20. Obtain a printout of the trend of computer points on PVC per Appendix A.
/
- Beaver Valley Power Station Unit 1 1BVT 1.11.3 Issue 1 Revision 2
, St ACL1 MULATOR DISCHARGE CHECK VALVES FULL STROKE TEST Page 21 of 48
- 21. Notify Operations that the data collection for the 1C accumulator is complete and that prerequisites and initial conditions can be established for the 1 A or 18 accumulator if this is the last accumulator to be tested, notify the NSS that the data colioction portion of this BVT is complete.
I Note: Data evaluation will be completed in Section Vll.D.
- 22. Proceed to Section Vll.A or B if these accumulators have not been tested. If they have been tested, proceed to Section Vll.D.
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Beaver Valley Power Station Unit 1 1BVT 1.11.3 Issue 1 Revision 2 SI ACCUMULATOR DISCHARGE CHECK VALVES FULL STROKE TEST Page 22 of 48 D. Calculations 1 Calculate the " average" pressure, if both accumulator pressure channels are available, and record on the appropriate Data Sheet 1,2 or 3, using the following formula: Averaga Pressure = # Where x and y are the pressure values from the 2 channels. (A) / (B) / (C) /
- 2. Calculate the initial Accumulator water volume (VWV1) using the initial level from each accumulator and Figure 1 and record on the appropriate Data Sheet 1,2, or 3.
(A) / (B) / (C) /
- 3. Calculate the initial volumo nitrogen (VNV11) in each accumulator using the formula below and record on the appropriate Data Sheet 1,2. or 3.
VNV11 = 1451.2 - VWV1 (A) / (B) / (C) / 4 Calcula'e the initial pressurizer water volume (VWV2) using the initial level and
' Figures 2 and 3 for each accumulator test and record on the appropriate Data Sheet 1, 2, or 3.
(A) / (B) -/ (C) /
Beaver Valley Power Station Unit 1 1BVT 1.11.3 Issue 1 Revision 2 St ACCUMULATOR DISCHARGE CHECK VALVES FULL STROKE TEST Page 23 of 48
- 5. ' Calculate the initial volume of nitrogen (VNV21) in the pressurizer using the formula below for each accumulator test and record on the appropriate Data Sheet 1,2, of 3.
VNV21 = 1410.2 - VWV2 (A) __/ (B) / (C) /
- 6. Plot the actual accumulator pressure vs. time for each accumulator on the appropriate Figure 4,5 or 6 using the average accumulator pressure, if available. If the average is unavailable, use the operating computer point (i.e., P0610A or P0611 A, etc.) from the PVC Trend. Record the computer point used on the
. appropriate figure.
(A) / (B) / (C) / 7, input the initial values from the appropriate Data Sheet 1. 2, or 3 for the variables into the computer program, "ACCTEST", using the Accumulator Blowdown Calculation Program described in the Technical Services Department Prcgram Description Manual, Program No. 4. The computer variables are listed in Table 8. (A) _/ (B) / (C) /
- 8. Obtain printouts of the results of the computer program using Appendix C.
(A) / (B) / (C) / Note: The " actual" curve may be shifted to account for the instrument and PVC response time.
. .. . ._. . . . - ._ _ . . _ _ . . - ~ _ . _ . . _ _
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- Beaver Valley Power Station Unit 1 1BVT 1.11.3 lssue 1 Ravision 2 St. ACCUMULATOR DISCHARGE CHECK VALVES FULL STROKE TEST Page 24 of 48
- 9. Plot the calculated theoretical pressure vs. time for each accumulator on the appropriate Figure 4,5 or 6.
(A) / (B) / (C) / N'ote: Having the actual and theoretical curves cross in the region of MOV operation is not. considered indicative of check valve degradation.
- 10. ' Compare the actual curve to the theoretical curve. The actual curve should be to the left and below the theoretical curve. See Figure 7 for example.
(A) / (B) /- (C) /
- 11. - Calculate the peak flow rate for each accumulator blowdown using HDSR Log
;. printout, based on the change of pressurizer level over time, on Data Sheet 4.
- a. Record the initial indicated pressurizer level and all subsequent levels until the level stops increasing.
~(A) /
(B) / (C) /-
- b. Using Figure 2, record the actual pressurizer level for the indicated levels -
recorded. (A) / (B) / (C) /-
- c. Using Figure 3, determine the water volume in gallons for the pressurizer levels.
(A) / (B) / (C)- /
Beaver Valley Power Station Unit 1 1BVT 1.11.3 Issue 1 Revision 2 St ACCUMULATOR DISCHARGE CHECK VALVES FULL STROKE TEST Page 25 of 48
- d. Determine the change in volume (AV) for each 5 second time interval.
(A) / (B) / (C) /
- e. Using the largest AV value, determine the peak flow rate using the formulas on Data Sheet 4.
(A) / (B) / (C) /
- 12. Compare the results tc the Acceptance Criteria Section Vlll.
(A) / (B) / (C) / 13 Verify that ERF Computer group has returned the normal inputs to the HDSR tog used for the 5 second trend to service.
/ _
/
- 14. Notify the NSS/ANSS that the test is complete.
/
,~
Beaver Valley Power Station Unit i 1BVT 1.11.3 Issue 1 Revision 2 SI ACCUMULATOR DISCHARGE CHECK VALVES FULL STROKE TEST Page 26 of 48 Vill, ACCEPTANCE CRITERIA A. The SI Accumulator Check Valves [Sl48.(49),(50),(51),(52), (53);] achieve full open stroke as determined by the following:
- 1. The actual pressure vs. time curve for each accumulator blowdown has been e
compared to the calculated curve and the actual curve falls to the lef t and below the calculated curve. (IX.C)
- 2. The actual peak flow rate as calculated from th change in pressurizer level is greater than the minimum flow required to full stroke the valves: Peak tiow rate for each accumulator must be greater than 4168 gal / min. (IX.E)
B. The remote position indication for the St Accumulato Ulsch rge isolation valves, , [MOV-1SI-865A, B, C] has been observed to be accurate against actual valve stem position. i
>=
_ _ _ _ _ . . _ _ _ _ _ --_ - - - - - _ _ _ - _ - - - _ - - - - - - - - - - - - - - - - - - - - - - - - - ' - - - - - - - - ' - - - ' ~ - - - - - - " - - - - ^ ~ - - - --' --
Beaver Valley Power Station Unit i 1BVT 1.11.3 Issue 1 Revision 2 SI ACCUMULATOR DISCHARGE CHECK VALVES FULL STROKE TEST Page 27 of 48 IX. REFERENCES A. OST 1.11.15, Safety injection Accumulator Check Valve Test. B. Response to NRC Letter of March 7.1985. ND1TPP:0311, dated 5/20/85. C. Westinghouse Start-up Test DLW SU-5.6.1, " Safety injection System, Part B, Ac.cumulator Blowdown Test". 3/23/74. D. BVT 1.1-5.11.2, Safety injection Flow Verification, issue 1, Rev. 2; performance date 11/14/75. E. EPRI, Applications Guidelines for Check Valvos in Nuclear Power Plants,1937. F. ASME Section XI.1983 Addenda. G, IEN 89 67. W H. Westinghouse Letter DLW-90-633, " Safety injection Accumulator Design Transients," June 4,1990. 1, EM 22753. "N: Temperature Change during the SI Accumulator Biowdown Test," June 27, 1990. d
4-Beaver Valley Power Station Unit 1 1BVT 1.11.3
+
lssue 1 Revision 2 St ACCUMULATOR DISCHARGE CHECK VALVES FULL STROKE TEST Pago 28 of 48 X. DATA SHEETS DATA SHEET 1 Page 1 of 2 [1SI TK-1 A] Computer Step No. Description Value Point Vll. A.2 initial Accumulator Pressure PSIG Vll.A.3 initial Accumulator Level % Vll. A.4 - Init RCS Pressure PSIG
+ 14.7 PNV2 = PSIA
. Vll.A.5 Initial PZR Level % indicated =
% actual Vll. A.14 [MOV 1SI-865A] stroke time OPEN sec
[MOV-1SI-865A] stroke time CLOSED see Stopwatch ID No. , Cat Date , Cal Due Date Vil'. A.16 Time When [MOV-1SI-865A] NOT CLOSED Y6507D Time When [MOV-ISI 865A] OPEN Y65080 Time When [MOV 1SI-865A] NOT OPEN Y6508D Time When [MOV 1St-865A] CLOSED _ Y6507D M t. a Time From NOT CLOSED to NOT OPEN sec MOT = Time From NOT CLOSED to OPEN sec MCT = Time From NOT OPEN to CLOSED sec
Beavor Valley Power Station Unit i 1BVT 1.11.3 Issue 1 Revision 2 Sl' ACCUMULATOR DISCHARGE CHECK VALVES FULL STROKE TEST Page 29 of 48 DATA SHEET 1 Page 2 of 2 Computer Step No. Description Value Point Vll.D.1 P0610A P0611A 1 A Averaqe initial Average Accumulator Pressure
=
PSIG
+ 14.7 PNV1 = PSIA Vll.D.2 initial Accumulator Water Volume; Accumulator Level (Step 3) =
gal for injec. gal - 195 = gal in accum.
+ 7.48 gal /ft3 VWV1 = ft3 Vll.D.3 Nitrogon Volume in Accumulator
- VNV11 = 1451.2 - VWV1 =
ft3 Vll.D.4 - Initial Pressurizer Water Volume Actual Pressurizer Level (Step 5) = gal.
+ 7.48 gal /ft3 VWV2 = ft)
' Vll.D.S Nitrogen Volume in Pressurizer VNV21 = 1410.2 - VWV2 =
ft) Performed By / Verified By /
Beaver Valley Power Station Unit 1 1BVT 1.11.3
- . Issue 1 Revision 2 Si ACCUMULATOR DISCHARGE CHECK VALVES FULL STROKE TEST Pago 30 of 48 l DATA SHEET 2 Page 1 of 2
[1SI-TK-1B] Computer Step No. Description Value Point Vll.B.2 Initial Accumulator Pressure PSIG _ _ _ , _ Vll.B.3 Initial Accumulator Level % Vll.B.4 Init RCS Pressure PSIG ,
+ 14.7 PNV2 = PSIA Vll.B.5 Initial PZR Level ,_ % indicated =
% actual Vll.B.17 [MOV-1SI-865B] stroke time OPEN sec
[MOV-1SI-865B] stroke time CLOSED sec Stopwatch ID No. , Cal Date , Cal Due Date Vll.B.19 Time When [MOV-1St 865B] NOT CLOSED Y6509D Time When [MOV-1SI-865B] O?EN _ Y65100 Time When [MOV-1SI-865B] NOT OPEN _ Y65100 Time When [MOV-1SI-865B] CLOSED Y6509D :l MTC = Time From NOT CLOSED to NOT OPEN see MOT = Time From NOT CLOSED to OPEN sec MCT = Time From NOT OPEN to CLOSED sec
Beaver Valley Power Station Unit i 1BVT 1.11.3 Issue 1 Revision 2 St ACCUMULATOR DISCHARGE CHECK VALVES FULL STROKE TEST Page 31 of 48 DATA SHEET 2 Page 2 of 2 Computer Step No. Description Value Point Vll.D.1 P0620A P06216 1B Averagg Initial Average Accumulator Pressure
=
PSIG
+ 14.7 PNV1 = PSIA Vll.D.2 initial Accumulator Water Volume:
Accumulator Level (Step 3) = gal for injec. gal - 195 = gal in accum.
+ 7.48 gal /ft3 VWV1 = ft)
Vll.D.3 Nitrogen Volume in Accumulator VNV11 = 1451.2 - VWV1 = ft3 Vll.D.4 initial Pressurize. Water Volume Actual Pressurizer Level (Step 5) = gal.
+ 7.48 gal /ft)
VWV2 = ft3 Vll.D.5 Nitrogen Volume in Pressurizer VNV21 = 1410.2 - VWV2 = ft3 Performed By / Verified By / l l 1
Beaver Valley Power Station Unit 1 1BVT 1.11,3 . . Issue 1 Revision 2 SI ACCUMULATOR DISCHARGE CHECK VALVES FULL STROKE TEST Page 32 of 48 DATA SHEET 3 Pa001 of 2 [1SI-TK-1C] Computer Step No. Description Value Point Vll.C.2 Initial Accumulator Pressure PSIG _ Vll.C, Initial Accumulator Level 9 'o Vll.C.4 Init RCS Pressure PSIG
+ 14.7 PNV2 = PSIA Vll.C.5 Initial PZR Level % indicated =
% actual Vll.C.17 [MOV-1SI-865C] stroke time OPEN sec
[MOV-1SI-865C) stroke time CLOSED sec Stopwatch ID No. . Cal Date , Cat Due Date Vll.C.19 Time When [MOV-1SI-865CJ NOT CLOSED Y6511D Time When [MOV-1SI-865C] OPEN Y6512D Time When [MOV-1St-865C] NOT OPEN Y6512D Time When [MOV-1SI-865C] CLOSED Y6511D MTC = Time From NOT CLOSED to NOT OPEN sec MOT = Time From NOT CLOSED to OPEN sec MCT = Time From NOT OPEN to CLOSED sec
Beaver Valley Power Station Unit 1 1BVT 1.11.3 lssue 1 Revision 2 SI ACCUMULATOR DISCHARGE CHECK VALVES FULL STROKE TEST Page 33 of 48 DATA SHEET 3 Page 2 of 2 Computer Step No. Description Value Point Vll.D.1 P0630A P0631A 1C Average initial Average Accumulator Pressuro
=
PSIG <
+ 14,7 PNV1 = PSIA Vll.D.2 Initi l Accumulator Water Volume:
Accumulator Level (Step 3) = gal for injec. gal - 195 = gal in accum.
+ 7.48 gal /ft2 VWV1= ft3 Vll.D.3 Nitrogen Volume in Accumulator
, VNV11 = 1451.2 - VWV1 = ft) Vll.D.4 initial Pressurizer Water Volume
. Actual Pressurizer Level (Step 5) = gal.
+ 7.48 gal /ft3
(. VWV2 = 113 l
. Vll.D.5 Nitrogen Volume in Pressurizer VNV21 = 1410.2 - VWV2 =
ft2 l Performed By / Verified By / _ - . . _ . . . . . . - _ ..- _ _ _ . _ . . _ . ~ . , _ . . _ - _ _. _.
Beaver Valley Power Station . Unit 1 1BVT 1.11.3 Issue 1 Rev'ision 2 St ACCUMULATOR DISCHARGE CHECK VALVES FULL STROKE TEST Pa00 34 of 48-DATA SHEET 4 A. Flow for [1SI TK 1 A] PZR PZR TIME INDICATED ACisAL AV LEVEL LEVEL
/5 sec.
__ /5 sec.
/5 sec,
/5 sec.
,/5 sec.
/5 sec.
/5 sec.
/5 sec.
/5 sec.
i
/5 sec.
/5 sec.
I-
/5 sec.
/5 sec.
i5 sec.
/5 sec.
PEAK /5 sec = gal /sec Performed By / Q= gal /sec '60 sec/ min Verified By /
.Q= gal / min
o Beaver Valley Power Station Unit i 1BVT 1.11.3 Issue 1 Revision 2 SI ACCUMULATOR DISCHARGE CHECK VALVES FULL STROKE TEST Page 35 of 48 B. Flow for [1SI 1 K-1B] PZR PZR TlAE INDICATED ACTUAL AV LEVEL LEVEL
/5 sec.
15 50C.
/5 sec.
/5 sec.
!$ sec.
/5 sec.
/5 sec,
/5 sec,
/5 sec.
/5 sec.
/5 sec.
/5 sec.
/5 sec.
/5 sec.
!5 sec.
/5 sec.
PEAK /5 sec = gal /sec Performed By / Q= gal /sec '60 sec/ min Verified By / Q= gal / min l
Beaver Valley Power Station Unit 1 1BVT 1,11.3 .- ,f Issue 1 Revision 2 St ACCUMULATOR DISCHARGE CHECK VALVES FULL STROKE TEST Page 36 of 48 C. Flow for (1St-TK-1C] PZR PZR WATER TIME INDICATED ACTUAL AV VOLUME LEVEL LEVEL __/5 sec
/5 sec.
/$ sec.
/5 sec
/5 sec
/5 acc.
/5 sec.
_ _/6 !OC.
/5 sec.
_ /5 sec.
/5 sec.
/5 sec.
/5 sec.
/5 sec.
/5 sec.
/5 sec.
PEAK /5 sec = gal /sec Performed By / Q= gal /aec '60 sec/ min Verified By / Q= gall.nin
. - . . ~ _ . , - ,, .. . . - - - . - - . . _ , . , ._-
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Beaver Valley Power Station Unit 1 - IBVT 1.11.3 - . Issue 1 Revision 2 ;
- SI ACCUMULATOR DISCHARGE CHECK VALVES FULL STROKE TEST Page 37 of 48 XI. . FIGURES fjauro1 1
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- Issue i Revision 2 St ACCUMULATOR DISCHARGE CHECK VALVES FULL STROKE TEST Pago 40 of 48 Einure4 l
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t Beaver Valley Power Station Unit 1 1DVT 1.11.3 i lssun 1 Revision 2
. Sl ACCUMULATOR DISCHARGE CHECK VALVES FULL STROKE TEST Page 43 of 48 l Ehnn1. ,
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Beaver Valley Power Station Unit i 1Bvi 1,11.3 Issun i Revision 2 SI ACCUMULATOR DISCHARGE CHECK VALVES FULL STROKE TEST P.igo 44 of 48 i XI. TABLES TABLE 8 COMPUTER CODE VARIADLES PNV1 - Initial Nitrogen Pressuro in the Accumulator (PSIA) J. VNV11 -Initial Nitrogen Volume in the Accurnulator (ft)) VNV21 - Initial Nitrogen Volume in the PZR (ft)) VWV2 - Initial Water Volume in the PZR (ft)) PNV2 Inillaf Nitrogen Pressure in the PZR (PSIA) HDLOSS System pipin0 resistance: St TK 1 A = 618.2/1B = 604.5/1C = 598.2 MOT Time in seconds for MOV to move from NOT CLOSED to OPEN (sec) MCT - Time in seconds for MOV to move from NOT OPEN to CLOSED (sec) MTC - Time in seconds from start cf lost till MOV t>egins to close; the time from NOT CLOSED to NOT OPEN (sec) MUNIT Appropriato Unit; 1 - Unit 1 MRCS - RCS Pressure; 1 = Vonted,2 = Pressurized Total volume of accumulator = VNV11 + VWV1 = 1451.2 ft3 Total volume of PZR = VNV21 + VWV2 = 1410.2 f t)
. , i Beaver Valley Power Station Unit 1 1BVT 1.11.3 ,
issuo 1 Revision 2 i St ACCUMULATOR DISCHARGE CHECK VALVES FULL STROKE TEST Pago 45 of 48 i l
. l XI. APPENDICES ADPrrulg_A i
To obtain a printout of HDSR Log on PVC within one i,vur efter the clump tost:
- 1. Select an out of tho way terminal and insert console key and unlock.
- 2. Depress the "HDSR" pushbutton.
- 3. Choose function #10-print current data.
Note: Follow the display prompts for the following command entries. T
- 4. Enter the HDSR Log number assigned to the test,
/
- 5. Et ter retention level ~0".
Note: The printout will take approximately 20 minutos so select a printer that is not currently being used or the ERF hi0h speed printer (Printer 4).
- 6. Enter desired printer number.
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Beaver Valley Power Station Unit i 1BVT 1.11.3
. .t issuo 1 Revision 2 '
Si ACCUMULATOR DISCHARGE CHECK VALVES FULL STROKE TEST Pago 46 of 48 Appendix Q To obtain the opening and closing limos of (MOV-St 865A,B,C':;
- 1. Verify that the status of the valves is being trended on the PVC.
- a. Depress 'St.lNJ.ACCUM" pushbutton (left of screen).
- b. Dopress "AN* function pushbutton (left of keyboard).
- c. Pago forward to pa00 2 of 2.
Note: The Valvo Status screen characters when "on" are green; "off* are yellow.
- d. Observe the following computer points.
Y6507D [MOV 1SI 865A] YG508D [MOV 1SI-865A] Y6509D [MOV 1SI 8658] Y6510D [MOV 1SI 8658] Y6511D [MOV 1SI 865C) i Y65120 [MOV 1SI 865C] If any computer points are "off* scan proceed to Step 2.
- 2. Consult the ERF Computer Group to verify the computer point source component has not been deactivated due to a MWR or MSP,
; 3. To change the status of a computer point:
- a. Insert console key and unlock.
- b. Depress the " POINTS ONIOFF SCAN" push button (above keyboard).
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Beaver Valley Power Station Unit i 18VT 1.11.3 Issue 1 Revision 2 SI ACCUMULATOR DISCHARGE CHECK VALVES FULL STROKE TEST - Page 47 of 48
- 4 Note: Follow display prompts for the following command entries.
- c. Enter the desired computer point number.
- d. Depress " CHANGE" pushbutton (right of keyboard).
- o. Enter "ON".
- f. Repeat if necessary for additional points.
- 4. After blowdown is complete, obtain the times of valve opening and closing frorn the alarm typewriter or tuonitor in the Control Room.
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.6* Beaver Valley Power Station Unit i 1BVT1.113
,4- Issue 1 Revision 2 St ACCUMULATOR DISCHARGE CHECK VALVES FULL STROKE TEST Page 48 of 48 Aptu:ndh C To run the computer program used to obtain the calculated theoretical pressures for the accuinulatoi blowdowns:
1, insert the appropriate floppy disk ACCTEST" mto the disk drive of the ITT XTR A Personal Computer (PC 2).
- 2. Depress "F7" to exit to DOS, then Typo "Y"
- 3. At the prompt. type "CDiFORTR AN"@
- 4. At the prornpt, type "A:"@
- 5. Type " ACCTEST.EXE"@
- 6. Using the Fortran Format (6F8.2.312.211), enter variable values into the computer program @
The computer variables are listed in Table 8.
- 7. Program will automatically output to printer.
B. When run completed, type "C;"@
- 9. Type " MENU"@
- 10. Remove the floppy disk from the disk drive.
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