ML20140G907

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Rev 8 to ISTs IT 525B, Leakage Reduction & Preventive Maint Program Test of 2SI-896A&B,SI Pump Suction Valves (Refueling)
ML20140G907
Person / Time
Site: Point Beach NextEra Energy icon.png
Issue date: 04/07/1997
From:
WISCONSIN ELECTRIC POWER CO.
To:
Shared Package
ML20140G761 List:
References
IT-525B, NUDOCS 9705120241
Download: ML20140G907 (7)


Text

-_a -_ w. & 6-+ - _.m- a - L -W--.,,: A s.: an. . Je w- , - - - - - , - , - -A---seme- A,,eaSm,b-l NUCLEAR POWER BUSINESS UNIT IT 525B

< INSERVICE TESTS MAJOR

.' Revision 8 l LEAKAGE REDUCTION AND PREVENTIVE April 7,1997 i MAINTENANCE PROGRAM TEST OF 2SI-896A&B, SI PUMP SUCTION VALVES (REFUELING) 1
UNIT 2 Date RECORD PROCEDURE VERIFIED CURRENT AND CHECKED FOR 1TMPORARY CllANGES. IF FIELD DSS COPIES REQUIRED. USE PDF-0026i IAW NP 114 AND DO M COMPLETE THIS BLOCK.

BY: DATE:

1.0 PURPOSE To detect and quantify leakage through 2SI-896A&B, SI pump suction isolation valves.

l 1.1 This test is part of the Leakage Reduction and Preventive Maintenance Program required

, by NUREG-0578, Item 2.1.6a.

! l i

1.2 This test is part of the program to evaluate the integrity of post-accident recovery systems outside containment as required by Technical Specification Table 15.4.1-2(22).

2.0 REFERENCES

2.1 P&lDs 2.1.1 110E035, Sheet 2, SIS 2.1.2 110E029, Sheet 1, ACS 2.2 EDS Nuclear Report, Leakage Reduction and Preventive Maintenance Program at Point Beach Nuclear Plant, dated 07-24-80.

3.0 P_RECAUTIONS AND LIMITATIONS 3.1 Liquids leaking from any components of the high head SI system will be mildly radioactive, and appropriate Health Physics practices should be observed.

3.2 Since the allowable leakage rates per the LRPMP are small, accurate measuring and timing techniques and calculations are mandatory to provide realistic data.

INITIALS 4.0 INITIAL CONDITIONS 4.1 The RCS is in the cold shutdown or refueling shutdown condition.

4.2 Both trains of HHSI may be removed from service for the test.

970512o241 97o5057 Page 1 of 7 CONTINUOUS USE PDR ADOCK 05000301 P PDR

i NUCLEAR POWER BUSINESS UNIT IT 525B -

l INSERVICE TESTS MAJOR l

Revision 8 a i

LEAKAGE REDUCTION AND PREVENTIVE April 7,1997 MAINTENANCE PROGRAM TEST OF 2SI-896A&B, l

SI PUMP SUCTION VALVES (REFUELING)

UNIT 2 i INITIALS 4.3 Test equipment required:

4.3.1 Three plastic buckets 4.3.2 Stopwatch Record ID No.

4.3.3 2 gpm hydro pump 4.3.4 Test pressure gauge calibrated for 150 psig.

4.4 Permission to Perform Test The conditions required by this test are consistent with required plant conditions including equipment operability. Permission is granted to perform this test.

DSS Time Date 5.0 PROCEDURE 5.1 System Pre-Test Alienment and Data 5.1.1 Align the following components: POSITION 2A52-74 2P-15A Bkr. Racked-Out 2A52-68 2P-15B Bkr. Racked-Out 2SI-866A 2P-15A discharge MOV Shut 2SI-866B 2P-15B discharge MOV Shut 2SI-825A SI pump RWST suction MOV Shut 2SI-825B SI pump RWST suction MOV Shut 2SI-826A SI pump BAT suction MOV Shut 2SI-896A 2P-15A suction MOV Shut 2SI-896B 2P-15B suction MOV Shut 2SI-876A 2P-15A mini-recire Shut 2SI-876B 2P-15B mini-recire Shut 2SI-D8C 2PI-974 gauge isolation Shut 5.1,2 With 2SI-825C open, verify a leak-off flow path that is air free by momentarily opening 2SI-D8B and observing a solid stream of water to a container, then shut 2SI-D88.

Page 2 of 7 CONTINUOUS USE

NUCLEAR POWER BUSINESS UNIT IT 525B INSERVICE TESTS MAJOR Revision 8 LEAKAGE REDUCTION AND PREVENTIVE April 7,1997 MAINTENANCE PROGRAM TEST OF 2SI-896A&B, SI PUMP SUCTION VALVES (REFUELING)

UNIT 2 INITIALS 5.1.3 Depressurize 2P-1SA&B pump casings by opening 2SI-V14A

& 15A respectively to a container. .

5.1.4 Record SI pump pressure:

2P-15A per 2PI-923 psig 2P-15B per 2PI-922 psig 5.1.5 Installjumper between 2SI-D8B and calibrated sight glass.

5.1.6 Verify shut SI-912C sight glass drain.

Verify open SI-912B sight glass vent.

5.1.7 Crack open 2SI-D8B to establish a level in the bottom of the calibrated sight glass.

5.1.8 Shut 2SI-825C,2P-15A&B mini-suction AOV.

5.1.9 Depressurize the leak-off volume by opening 2SI-D8B.

NOTE: Allow sufpcient timefor leakage to stabilize, ifpresent.

NOTE: 1 cm change in level equals I seem volume.

5.1.10 Measure and record the background leak rate at 2SI-D8B.

seem 5.1.11 Shut 2SI-D8B.

5.2 Seat Leakane Test of 2SI-896A 5.2.1 Shut 2SI-V14A,2P-15A casing vent.

5.2.2 Attach hydro pump to 2SI-V14A.

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l Page 3 of 7 CONTINUOUS USE

NUCLEAR POWER BUSINESS UNIT IT 525B

~

INSERVICE TESTS MAJOR Revision 8 LEAKAGE REDUCTION AND PREVENTIVE April 7,1997 MAINTENANCE PROGRAM TEST OF 2SI-896A&B, SI PUMP SUCTION VALVES (REFUELING)

UNIT 2 INITIALS

  • CAUTION
  • DO NOT PRESSURIZE 2P-15A SUCTION TO

>110% OF DES.tGN PRESSURE (165 PSIG).

5.2.3 Start hydro pump and pressurize hydro hose to 100 psig, then open 2SI-V14A.

5.2.4 Operate hydro pump as required to maintain test system pressure at 130-150 psig per hydro pump test gauge.

5.2.5 Record 2P-15A pressure per: Test gauge psig 2PI-923 psig NOTE: Allow sufficient timefor leakage to stabilize before measuring andrecordingjlow.

NOTE: 1 cm change in level equals 1 sccm volume.

5.2.6 Slowly open wide 2SI-D88 to a container. When leakage has stabilized, measure and time the leakage rate and record.

scem 5.2.7 Shut 2SI-V14A, then secure the hydro pump.

5.2.8 Open 2SI-876A mini-recire and depressurize 2P-15A, then reshut 2SI 876A.

5.2.9 Shut 2SI-D8B.

5.2.10 Disconnect hydro hose at 2SI-V14A, then open 2SI-V14A and vent 2P-15A to a container.

5.2.11 Subtract Step 5.1.10 background leakage from Step 5.2.6 total leakage and record leakage attributed to 2SI-896A.

seem 5.3 Seat Leakane Test of 2SI-8968 5.3.1 Shut 2SI-V15A,2P-1SB casing vent.

5.3.2 Attach hydro pump to 2SI-V15A.

Page 4 of 7 CONTINUOUS USE

l

~~ l NUCLEAR POWER BUSINESS UNIT IT 525B INSERVICE TESTS MAJOR

/ Revision 8 I

LEAKAGE REDUCTION AND PREVENTIVE April 7,1997 MAINTENANCE PROGRAM TEST OF 2SI-896A&B, S1 PUMP SUCTION VALVES (REFUELING)

UNIT 2 INITIALS

  • CAUTION
  • DO NOT PRESSURIZE 2P-15B SUCTION TO

>110% OF DESIGN PRESSURE (165 PSIG).

5.3.3 Start hydro pump and pressurize hydro hose to 100 psig, then  !

open 2SI-V15A.

J 5.3.4 Operate hydro pump as required to maintain test system pressure at 130-150 psig per hydro pump test gauge.

5.3.5 Record 2P-15B pressure per: Test gauge psig 2PI-922 psig NOTE: Allow sufficient timefor leakage to stabilize before measuring and recordingflow.

NOTE: 1 cm change in level equals 1 scem volume.

5.3.6 Slowly open wide 2SI-D8B to a container. When leakage has stabilized, measure and time the leakage rate and record.

seem 5.3.7 Shut 2SI-V15A, then secure the hydro pump.

5.3.8 Open 2SI-876B mini-recire and depressurize 2P-15B.

5.3.9 Shut 2SI-D88, drain sight glass, disconnect jumper, and install plug / cap on 2SI-D8B.

5.3.10 Disconnect hydro hose at 2SI-V15A.

5.3.11 Subtract Step 5.1.10 background leakage from Step 5.3.6 total leakage and record leakage attributed to 2SI-896B seem 5.3.12 Shut 2SI-V14A,2P-15A casing vent.

5.3.13 Open 2SI-876A,2P-15A mini-recire.

Page 5 of 7 CONTINUOUS USE

.i NUCLEAR POWER BUSINESS UNIT IT 525B -

INSERVICE TESTS MAJOR Revision 8 -

LEAKAGE REDUCTION AND PREVENTIVE April 7,1997 MAINTENANCE PROGRAM TEST OF 2SI-896A&B, S1 PUMP SUCTION VALVES (REFUELING)

UNIT 2 INITIALS 5.4 Post-Test System Alienment

5.4.1 Position the following: POSITION 1

NOTE: S&Fmeans valve shut withflange, cap orplug installed  ;

2SI-D8B Leak-off test connection S&F /

l 2SI-D8C 2PI-974 gauge isolation Shut

( 2SI-V14A 2P-15A casing vent S&F /

2SI-V15A 2P-15B casing vent S&F /

i 2SI-876A 2P-15A mini-recire LO /

! 2SI-876B 2P-15B mini-recire LO /

. 2SI-825C SI pump mini-suction AOV Open /

l 2SI-896A 2P-15A suction MOV Open /

2SI-896B 2P-15B suction MOV Open /

1 2

5.4.2 The DSS should prescribe the position of the following:

2SI-825A SI pump RWST suction MOV /

2SI-825B SI pump RWST suction MOV / I 2SI-866A 2P-15A discharge MOV /

2SI-866B 2P-15B discharge MOV / I 2A52-74 2P-15A Bkr. / i 2A52-68 2P-15B Bkr. /

6.0 ACCEPTANCE CRITERIA l

l 1

Valve through-leakage should not exceed 30 cc/hr per inch of valve diameter. l This is only to be used as a guideline, and may be changed to be consistent with l the "as-low-as-practicable" philosophy. 2SI-896A&B are 6 inch diameter valves, therefore seat leakage of each should not exceed 180 cc/hr or 3.0 scem. Consider i valve repair ifleakage exceeds 3.0 secm.

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Page 6 of 7 CONTINUOUS USE

NUCLEAR POWER BUSINESS UNIT IT 525B INSERVICE TESTS MAJOR l

.' Revision 8 l LEAKAGE REDUCTION AND PREVENTIVE April 7,1997 MAINTENANCE PROGRAM TEST OF 2SI-896A&B, j S1 PUMP SUCTION VALVES (REFUELING)

UNIT 2 INITIALS 7.0 ANALYSIS TO BE COMPLETED BY THE OPERATIONS MANAGER OR IIIS REPRESENTATIVE.

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7.1 Comparison with allowable ranges of test values and analysis of  ;

deviations complete. I i

7.2 Any requirements for corrective action?

Yes No l If yes, give details in the remarks section and WO No. .

]

7.3 Data analyzed. By Date Remarks:

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