ML20235R344

Rev 26 to, Pilgrim Nuclear Power Station Secondary Containment Leak Rate Test

ML20235R344
Person / Time
Site:	Pilgrim
Issue date:	12/28/1988
From:	BOSTON EDISON CO.
To:
Shared Package
ML20235R322	List: BECO-89-018, Forwards Revs 25 & 26 to Procedure 8.7.3, Secondary Containment Leak Rate Test. Test Results Indicated Leakage in Excess of Tech Spec Acceptance Criteria ML20235R344 ML20235R467
References
8.7.3, NUDOCS 8903030265
Download: ML20235R344 (22)

Text

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V ,

\g BOSTON EDISON PILGRIM NUCLEAR POWER STATION i

(

I Procedure No. 8.7.3 {

SECONDARY CONTAINMENT LEAK RATE TEST l

Approved k nt Manager

~

\ // e ? M Date I

9903030265 890223 -

gDR ADOCK 05000293 PDC 8.7.3 Rev. 26 Page 1.of 22 l

.i

1,

, REVISION LOG l l

Revision Pages Description Level Affected of Revision . ,

24 All Revised step 19 from " Reopen any valves closed per step 14" to correctly read " Reopen any valves closed per step 16". ,

i 25 All Incorporate comments of PCAQ NED 88-165.

26 All Clarify Procedure and C-7 Reset.

i l

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8.7.3 Rev. 26 Page 2 of 22

s LIST OF EFFECTIVE PAGE REVISIONS Page Rev. No. Page Rev. No. Page Rev. No. Page Rev. No.

I 26 22 26 2 26 3 26 4 26 5 26  !

6 26 7 26 l

8 26 9 26 10 26 11 26 12 26 13 26 14 26

^

15 26 16 26 17 26 18 26 19 26 20 26 21 26 l

i I

I 8.7.3 Rev. 26 Page 3 of 22

a I. PURPOSE

'The purpose of this procedure is to provide instructions for performing the (

secondary containment leak rate test.

II. DISCUSSION This procedure should be performed at each refueling outage prior.to refueling as required by PNPS Technical Specification 4.7.C.1.c, or as required for post work testing.

III. . REFERENCE MATERIAL A. FSAR, Section 5.3 *"

B. PNPS Procedures ,

l

1. 2.2.50 Standby Gas Treatment

2. 8.7.3.1 Inspection of Secondary Containment Dampers l

3. 2.4.147 Reset of Secondary Containment Isolation on Panel C7 24 I l

C. PNPS Technical Specification Section 4.7.C.1.c

b. P&ID's I

1. M-280, Heating and Ventilation

2. P&ID M-287, Plant Ventilation

3. P&ID M-321, Fan Room No. I

4. P&ID M-322, H&V and AC Fan Room No. 3 and 2

5. P&ID M-323, H&V and AC Temperature Controls l

E. NOP-8301, Conduct of Operations j

f. NED Memo #84-038, corresponds to FS&MC Memo #84-015 G. Vendor Manual V-0529, Pacific Air Products H. Design Changes 1

1. PDC 85-14, Reactor Building Secondary Containment Isolation Dampers

2. PDC 86-70, Standby Gas Treatment System Modifications

3. PDC 88-53, Reactor Building Trucklock Door Mechanical Seal I. NRC resolved concern, UNR 83-23-02 '

J. PCAQ NED 88-165 8.7.3 Rev. 26 Page 4 of 22

IV. EEER(0VISITES 1

A. Hatch Engineer's permission to perform test. i l

l H0IE The Turbine Building should be at a slight negative pressure ( 0.1 to 0.2 inches H2 O) with respect to atmosphere as read on the manometers next to w Panel C60.

B. Turbir.s Bldg. H&V System operating with 2 exhaust and 2 supply fans in service. Roof exhausters in operation as required.

C. DPI-AA-22 and DPI-AA-32 calibrated.

D. At least one door at each access closed.

E. Standby gas treatment system operable.

F. All automatic ventilation system isolation dampers operable or secured in the isolated condition.

G. All manometers filled and zeroed. i H. Secondary containment checkoff (Attachment B) considered and accepted.

I. Specific purpose for test performance to be noted in Attachment A.

J. Hind speed I 15 mph.

V. APPARATUS A. Key for test switches l

B. Communications equipment i

VI. PRECAUTIONS I A. Do not draw over 1" H2O vacuum across the reactor. building.

B. If this test is performed during reactor power operation, do not keep the reactor building isolated longer than 10 minutes as the main steam  !

tunnel temperature will start to rise.

C. A reading to the right of zero (downward) on the manometers is negative.

D. An individual base line reading outside of 0 1 0.1" H O2 indicates test results could be influenced and test should not be conducted until condition is corrected.

l 8.7.3 Rev. 26 Page 5 of 22

\ _____-___ ____-_ _ _ L

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1 VII. PROCEDURE l

'A. Perform the test as follows:

1. Record ambient conditions.

2. Verify or position as required the SGTS as follows:

A Train B Train A0N 99, 108 Auto (Closed) AON 106,112 Auto (Closed) 24 A0N 135, 136, Open A0N 135, 136, Open A0N 98, 138 Auto (Closed) A0N 101, 137 Auto (Closed) 10

3. Close the outer Reactor Building Trucklock door and inflate the seal.

4. Open the inner Reactor Building trucklock door.

5. Place hand switches for both SGTS fans, VEX-210A and VEX-2108, ,

(Panel C-7) in the OFF position. l 110 I 1 When the test switches art tripped, the signal will seal in and the Reactor Building will remain isolated. The SBGTS fans will not start 24 untti manipulated by this procedure. An SGTS trouble alarm may come in and not reset until completion of this test.

I

6. Simultaneously turn both keylocked secondary containment isolation system initiation control switches (RPHA/CS and RPHB/CS on Panel C-7) to the TEST position.

a. Allow 3 minutes for stabilization and take base readings on the 4 manometers in the reactor building elevation 91', and 2 manometers in the Turbine Building Elevation 51'.

b. Record data on Attachment A and review that average base line is within bounds. (0

• 0.1 "H 2O) 8.7.3 Rev. 26 ,

Page 6 of 22 j

7. Turn all reactor building fan switches on Panel C-61 to the OFF position after noting which fans were operating.

8. Place the fan control switch (on Panel C-7) for VEX-210A (A SGTS fan) in the AUTO position. Leave the control switch for the B fan in the OFF position. 3

9. Verify dampers A0N-99 AND A0N-108 reposition to the OPEN position.

10. Regulate MON-109 as required such that flow is maximized but does ~

not exceed 4000 CFM.

11. Allow the manometers to stabilize and record the approximate time necessary for stabilization on Attachment A.

12. Record the following data on Attachment A.

a. Manometer dP readings,

b. DP-AA-22 dP

c. DP-AA-32 dP

d. FI-8126/8127

13. Place the fan control ; witch (on Panel C-7) for VEX-210A (A SGTS U fan) in the OFF position.

14. Close the inner Reactor. Building Trucklock door but DQ HQI inflate the seal.

I '5 . Open the outer Reactor Building Trucklock door.

f 16. Place the far. control switch (on Panel C-7) for VEX-210A (A SGTS fan) in the AUTO position. Leave the control switch for the B

, fan in the OFF position. zy

17. Regulate MON-109 as required such that flow is inaximized, but does not exceed 4000 CFM,

18. Allow the manometers to stabilize and record the approximate time necessary for stabilization on Attachment A.

19 Decord the following data on Attachment A.

a. Hanometer dP readings

b. DP-AA-22 dP

c. DP-AA-32 dP

d. FI-8126/8127 8.7.3 Rev. 26 Page 7 of 22

'e

20. Place the fan' control switch (on Panel C-7) for VEX-210A (A SGTS

. fan) in the OFF position.

21. Verify the damper control switches (on Panel C-7) for AON-99 AND A0N-108 in the AUTO position and the dampers indicate CLOSED.

l

22. Place the fan control switch (on Panel C-7) for VEX-210B (B SGTS )

y fan) in the MAINTENANCE position. Leave the control switch for the A fan in the OFF position.

23. Verify dampers A0N-106 AND AON-il2 reposition to the OPEN position. >

24. Regulate MON-113 as required such that flow is maximized but does not exceed 4000 CFM.

25. Allow the manometers to stabilize and record the' approximate time  :

necessary for stabilization on Attachment A. -

26. Record the following data on Attachment A.

a. Hanometer dP readings ,

b. DP-AA-22 dP j

c. DP-AA-32 dP ,

d. FI-8126/8127 l

27. Place the fan control switch (on Panel C-7) for VEX-210B (B SGTS I fan) in the OFF position. I

28. Close the outer Reactor Building Trucklock door and inflate the seal.  ;

29. Open the inner Reactor Bu11 ding Trucklock door.

30. Place the fan control switch (on Panel C-7) for VEX-210B (B SGTS l fan) in the MAINTENANCE position. Leave the control switch for the A fan in the OFF Position. 79

31. Regulate MON-ll3 as required such that flow is maximized but does not exceed 4000 CFM.

32. Allow the manometers to stabilize and record the approximate time )

necessary for stabilization on Attachment A.

33. Record the following data on Attachment A.

a. Hanometer dP readings

b. DP-AA-22 dP

c. DP-AA-32 dP  ;

d. FI-8126/8127 ,

8.7.3 Rev. 26 Page 8 of 22 f

1 i

.34. Place the fan control switch (on Panel C-7) for VEX-210B (B SGTS

- fan) in the OFF position.  ;

35. . Reset the secondary containment isolation per procedure 2.4.147.

W J

36. Return the SBGTS to normal line-up per procedure 2.2.50.

37. Verify all components are returned to normal (two independent verifications required).

1 BRIE Independent verifications may be performed by;

a. Direct method - checking appropriate equipment and/or controls 1

or,:

b. Indirect method - observation of indicators and/or status lights An independent verification.need not be performed if a person has the potential of receiving greater than 25 mrem whole body while performing  ;

the verification.

B. Documentation

1. Enter the performance of the test in the Control Room Log.

2. Cc,mplete the signoff sheet and forward to the Compliance Engineer.

3. Route to Control Room Annex for filing.

VIII. ACCEPTANCE CRITERIA A. The test was performed as written with no unexplained discrepancies.

B. The individual Base Line Readings were equal to 010.1" H20.

C. A 1/4" water vacuum (average corrected value) on the secondary containment obtained with a filter train flow rate of eaual to or less than 4000 CFM as determined from the perforated plate readings (DPI-AA-22/DPI-AA-32).

D. That FI's 8126 and 8127 agree within i 201 of perforated plate dP conversion. (Not Tech. Spec. required.)

8.7.3 Rev. 26 Page 9 of 22

IX. ATTACHMENTS

' A. Secondary Containment Leak Rate Signoff B. Secondary Containment Integrity Checkoff C. SGTS "A" Air Flow Vs. Perforated Plate AP.

D. SGTS "B" Air Flow Vs Perforated Plate AP.

8.7.3 Rev. 26 Page 10 of 22

ATTACHMENT A Sheet 1 of 5 SECONDARY CONTAINMENT LEAK RATE SIGH 0FF A. Prerequisites (Step IV)

PM

1. Watch Engineer permission to perform test. Initial '

2 Turbine Building, H&V System operating two iy exhaust and two supply fans in service. . Roof gp exhausters as required. Initial

3. DPI-AA-22 and DPI-AA-32 calibrated. Initial l

4. At least one door at each access closed. Initial MP j

5. Standby gas treatment system operable. Initial MP

6. All automatic ventilation system isolation dampers operable or secured in the isolated #

condition. Initial

7. All manometers filled and zeroed. Initial 8 .' Secondary containment checkoff considered MP and accepted. Initial

9. Specific purpose for test performance is: Initial MP I B. Test Performance PWT of PDC 88-53 Reactor B1de. Trucklock door 00 Hind Direction Wind Velocity mph (115 mph) 3' Outside Temperature 'F 70 Inside Temperature 7

1. Base Readings Manometer P Rx Bldg El 91' N (1) +.04 "HO2 E (2) +.02 "HO2 8.7.3 Rev. 26 i Page 11 of 22

~

. .., i ATTACHMENT A Sheet 2 of 5 N (3) +.04 "HO2 S (4) +.03 "HO 2 Average +.03 " H2O (0" 10.1" H20)

Elevation 51' Turbine Buildina:

Turb op. floor .14 ug20 Condenser Compt. 17 "H2O

2. SGTS A Performance Inner Truck Lock Door Open, Outer Door Shut seal inflated.

Manometer Stabilization Time ~l Min.

DPI-AA-22 1.35 "H2 0/ .3750 CFM 0 0 DPI-AA-32 "H2 0/ CFM Total 3750 CFM FI-8126/8127 4000 / 4000+yg t

Elevation 91' Rx. Blda. manometer:

lait -

Baig - Corrected N (1) .38 "HO +.04 u 42 "HO 2 g20 2 E (2) .44 ei g20

+.02 "

HO .46 n 2 g2p H (3) .44 n +.04 "

HO .48 "

g20 2 HO2 S (4) .36 "

HO +.03 " .39 2 HO 2

HO2 Average corrected manometer DP *" "H02 Elevation 51' Turb Blda manometers:

Turb op Floor -

• l7 "H2O 19 Condenser Compt. "HO 2 i

8.7.3 Rev. 26 Page 12 of 22

'O ,

ATTACHMENT A l Sheet 3 of 5  !

3. SGTS A Performance Inner Truck Lock Door Shut seal EQI inflated, Outer Door Open. '

DPI-AA-22 1.35 "HO 2 3750 CFM DPI-AA-32 0 "HO 2 O CFM Total 3750 ._CFM 4000+ .

FI 8126/8127 4000+ / CFM e 1 Manometer Stabilization Time Hin.

Elevation 91' rtx B1dsLManometers:

IfJLt - Eng - Corrected 1

.42 +.04 .46 l N (1) "HO 2 "HO 2 "HO2 l

.46 +.02 .48 E (2) "HO 2 "HO 2 "HO2 j

.45 +.04 .49 i M (3) "HO 2 "HO 2 "HO2

.40 +.03 .43 S-(4) "H0 2 "HO 2 "HO2 Average corrected manometer DP .465 "HO 2 l

Elevation 51' Turb Blda manometers:

1 Turb op Floor .16 "2

_HO l Condenser Compt._..19 ."H2O l 4. SGTS B Performance Inner Truck Lock Door Shut, seal HQI inflated, Outer Door Open.

DPI-AA-22 0 "H2O O CFM  ;

DPI-AA-32 1.55 "H2O 3850 CFM Total 3850 CFM 4000+

FI 8126/8127 4000+ / CFM )

l l Manometer Stabilization Time ~ l Hin.

. l l

I i

8.7.3 Rev. 26 Page 13 of 22 j

O_____--_.____-_-----_______-_________________.

i ATTACHMENT A Sheet 4 of 5 Elevation 91' Rx Blda. manometers: 4 Int - gng - Corrected

~

N (1) .64 a g20 +.04 a HO .68 "HO 2 2 E (2) .66 "

HO +.02 a HO .68 "HO 2 2 2 N (3) .66 "HO +.04 "

HO .70 "HO 2 2 2 S (4) .58 "

HO +.03 "

HO .61 "H0 2 2 2 Average corrected manometer DP .67 "HO 2 Elevation 51' Turb Blda Manometers:

Turb op Floor .16 a HO 2

Condenser Compt. .18 a HO I 2

5. SGTS B Performance Inner Truck Lock Door Open, Outer Door Shut ser.1

, inflated.

DPI-AA-22__ 0 "HO 2 O CFM DPI-AA-32 1.45 a HO 3700 CFM 2

Total 3700 CFM l 4000+

FI 8126/8127 4000+ / CFM Manometer Stablitzation Time "1 Min. I i

Elevation 91' Rx Elda Manometers:

Int - Sng - Corrected N (1) .56 "

HO +.04 a .60 a HO 2 g20 2 E (2) .58 a HO +.02 "

HO .60 "

HO 2 2 2 H (3) .58 "

HO +.04 "

HO .62 "

HO 2 2 2 S (4) .50 "

HO +.03 = .53 "

HO 2 g20 2 Average corrected DP .59 "HO 2 8.7.3 Rev. 26 Page 14 of 22

a .

ATTACHMENT A Sheet 5 of 5 i

Elevation 51' Turb b1da manometers:

Turb op Floor .14 "HO2

~'

Condenser Compt. "HO2 i

6. System Returned to Normal: (Two Independent Verifications Required) ,

T. Phipps .Date 12/29/88 S. Power 12/29/88 Discrepancies: ,

l

1. Dual light indication AON-78 correct light indication came in approx. ]

20 min. later.  !

2. AON-78 cycled after completion of the test (prior to Rx Bldg. fans in service) dual light indication was present.  ;

l F6MR 88-350 initiated. ,

i l

l l

l l

l Acceptance Criteria, as stated in Section VIII of the procedure was met. l P. E. Mastrangelo Hatch Engineer P. E. Mastrangelo Hatch Engineer l

Test data forwarded to Compliance Eng. by Hatch Engineer Date l

8. Reporting Compliance Engineer submitted report to the NRC within 90 days.

Compliance Engineer Date

9. Route to Control Room Annex for Filing.

8.7.3 Rev. 26 Page 15 of 22 e___-______________________

ATTACHMENT B Sheet 1 of 5 SECONDARY CONTAINMENT CHECK-OFF (By Elevation)

The attached check-off sheets provide satisfactory (Sat) or unsatisfactory (Unsat) l check-off for various secondary containment penetrations. Satisfactory check-off will indicate the following:

I

a. For plugs, hatches, and doors; seals are in place and provide a positive seal around the perimeters of the seal area.

b For dampers: Linkage system is clean and free of corrosion. Edge seals are in place and not otherwise damaged. Damper position corresponds to its associated switch position on panel C-7.

c. For drains: valves are lined up to a minimum 20% full collection tank, tank covers are installed.

d. For water level indication, no low water level alarms are present.

Conditions other than those listed require unsatisfactory check-off and discrepancies noted. Repairs to correct deficiencies shall be initiated.

Inspection of electrical penetrations and masonary for the Reactor Building will be accomplished for all walls annually. Verification of these inspections will be noted as satisfactory if all annual inspections are completed.

El 3' Reactor Aux. Bay HPCI Floor Blowout Panel & Plugs ** Sat X Unsat __

HPCI Escape Hatch Sat Unsat HPCI Equipment Hatch Sat Unsat __

Note Discrepancies:

El 6' Radua11e Miscellaneous Tank Drains Sat Unsat Note Discrepancies:

PASS Area Above Machine Shon 2 ventilation dampers between Rx Bldg. & PASS sample station closed.

• Verified RKM 8.7.3 Rev. 26 Page 16 of 22

o ..  !

ATTACHMENT B Sheet 2 of 5 El 23', Reac' tor Building Truck Lock Inner Door Sat Unsat 3 Truck Lock Outer Door Sat X Unsat Truck Lock Dampers

• Sat X Unsat  ;

AO-N 114

• Sat X Unsat A0-N 115

• Sat X Unsat )

A0 H 116

• Sat Unsat A0-N 117

• Sat X Unsat Personnel Access to Aux. Bay Inner Door Sat

• Unsat 4 Outer Door Sat -

Unsat Personnel Access to Access Control l 2 Inner Door Sat Unsat l 1 Outer Door Sat Unsat Note Discrepancies:

1 Interlock not working MR 88-30-31 (guard posted) 2 Fresh grout taped over with poly Open conduit to airlock packed with sealant 3 Outer RB trucklock door missing two horiz. braces MR87-56-123 4 Outer door passage set is broken Fm 88-33-362 El 51' Reactor Building Access to MG Set Room Door "A" Inner Sat "

Unsat Door "A" Outer Sat Unsat Door "B" Inner Sat Unsat Door "B" Outer Sat Unsat 8.7.3 Rev. 26 Page 17 of 22 1

o l

ATTACHMENT B I Sheet 3 of 5 El. 51.' Rea' c tor Buildina (cont'd)

Dampers '

1

• X A0-N 90 Sat Unsat I

• X A0-N 91 Sat Unsat

• X A0-N 96 Sat Unsat l

"

• X

, A0-N 97 Sat Unsat i

Note Discrepancies:

El 74' Reactor Buildina Access to Fan Room 3 X

Inner Door Sat Unsat  ;

X Outer Door Sat Unsat l Access to Fan Room 4 1

X Inner Door Sat Unsat _

X Outer Door Sat Unsat Access to Fan Room 5 X

Inner Door Sat Unsat X

Outer Door Sat Unsat l Dampers

! X AO-N 78 Sat Unsat X

AO-N 79 Sat Unsat

'X A0-N 80 Sat Unsat I X '

A0-N 81 Sat Unsat Note Discrepancies:

1 8.7.3 Rev. 26 Page 18 of 22 n.. .. . ~ . . - . _ _ - - - - _ _ _ - - _ - _ _ _ . _ - _ _ _ - . . - - _ _ _ . . - _ _ . . . -

ATTACHMENT B Sheet 4 of 5 El 91', Reactor Bu11dina Access to Fan Room 6 Sat Unsat

, Inner Door Sat Unsat Outer Door Sat X Unsat Dampers ,

A0-N 82

• Sat Unsat AD-N 83 Sat Unsat Note Discrepancies.

El 117' Reactor Building Roof Access (El. 158' - 4 1/4")

Inn t> A.* Sat x Unsat Guter Hatch Sat X Unsat I Note Discrepancies:

8.7.3 Rev. 26 Page 19 of 22

ATTACHMENT B Sheet SJf

~

El 51' Turbine Buildina Dampers

• X A0-N 92 Sat Unsat

• X A0-N 93 Sat Unsat

• X A0-N 94 Sat Unsat .

• X Unsat A0-N 95 Sat Note Discrepancies:

Inspected by R. Myrick

_ M. Perito 12/28/88/Date 12/28/88

• • verified Signature 12/28/88 S e Discrepancies 1 3 4 MR's issued for repairs ~

as noted J. A. se ry Reviewed by f r /Date 12/28/88 CTE Approved by /Date Watch Engineer 8.7.3 Rev. 26 Page 20 of 22

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