Text

Amend 1 to 800916 Integrated Leak Rate Type A,B & C Tests
	ML18139B494
Person / Time
Site:	Surry
Issue date:	08/18/1981
From:	; VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
To:	;
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ML18139B493	List: ML18139B492; ML18139B494;
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	NUDOCS 8108260073
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e COLLATING INSTRUCTIONS FOR AMENDMENT 1 TO THE VEPCO SURRY POWER STATION, UNIT NO. 2, REACTOR CONTAINMENT BUILDING INTEGRATED LEAK RATE TEST TYPES A, BAND C REPORT.

Remove old pages and insert new pages as shown below.

Remove Old Page 2-4 Page 3-9

Insert New Tab 2 *- Surcimary Page 2-4 and 2-5 Tab 3_.4 -

Type "A" Test - Test Results Page 3-9 Tab - Appendix 4A After Appendices *4A-l through 4A-3:

Appendix 4A-4

Tab *...; *Appendix 4B After Appendices 4B-l through 4B-6:

Appendices 4B-7 through 4B-15

-a1 oa260073-ai'oefie(\\

PDR ADOCK 05000281 ',

P PDRJ

~-,-* _,,

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transistor malfunction in the plant computer which was corrected by replacement of a computer card.

The manometers resumed recording pressures at 0355 hours0.00411 days 0.0986 hours 5.869709e-4 weeks 1.350775e-4 months on May 26, 1980.

The following 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months of data yielded a calculated leakage rate (0.3 La) below the acceptable limit and satisfied the requirements of Bechtel Topical

Report, BN-TOP-1 (Reference 2)..

At 1723 hours0.0199 days 0.479 hours 0.00285 weeks 6.556015e-4 months , the mass pumpback verification test commenced.

At 1910 hours0.0221 days 0.531 hours 0.00316 weeks 7.26755e-4 months , approximately 555 pounds of air had been pumped into the containment*via the service air line.

The computer calculated mass increase compared to the total metered air reading was within the acceptable limit and the test was secured.

Depressurization of the containment at approximately 5 psi/hr commenced at 2145 hour0.0248 days 0.596 hours 0.00355 weeks 8.161725e-4 months s~

At 0707 hours0.00818 days 0.196 hours 0.00117 weeks 2.690135e-4 months , on May 27, 1980, the containment was at atmospheric pressure.

D.

The difference in the leak rates between the two unsuccessful ILRT attempts and successful attempt was approximately.8 La or 220 scfh. The result of the local leak rate testing prior to the successful attempt reduced reportable leakage by approximately 40 scfh (all penetrations were tested). The leakage through the steam generator was _not quantified,

however, only minor packing leaks were identified and the total reduced leakage attributed to packing repairs is 20 scfh.

Even if these items had been repaired prior to the first two attempts, the ILRT*s probably still would have been unsuccessful.

The only other repair made to containment boundaries between the second and third attempts was the repair of the'holes in the liner. Of the eight holes discovered, five had threaded bolts in them and are assumed to have been tight.

The remaining three holes were open. Calculations show that each hole could have had a maximum *flow rate of approximately 1275 scfh assuming no resistance to flow due to the concrete.

Although restriction of flow due to the proximity of the concrete cannot be accurately quantified, it is our position that such leakage was sufficient by itself to prevent a successful test. The intent of the CILRT is to meaningfully assess the extent of containment deterioration since the last (1975)

Type A Test.

The_ construction related deficiency (holes in liner) that was responsible for the unsuccessful attempts was created during the 1980 SGRP Construction Outage specifically for the purpose of mounting an additional RTD. for the Type A Test *. Therefore, these holes do not represent structural deterioration as a

result of normal operation.

The proced~e for installing the RTDs was 2-4

ammended to specifically prohibit direct attachment of an RTD to the liner.

Increasing the frequency of the CILRT will nQt. necessarily provide greater assurance of containment integrity, especially since appropriate corrective action has been effected as demonstrated during the successful 1981 Unit 1 SGRP Construction Outage, and subsequent Type A Test.

2. 2 LOCAL LEAK RATE TEST (TYPES B AND C)

The local leak rate testing of containment isolation valves and primary containment.penetrations was conducted as required by station procedures, commencing in December 1979.

The penetrations tested and their associated leak rates are listed in Section 4 of this report.

2-5

2 I

o 17

/

0 4

/1.218 18

/

0 5

I o

24

/

o 8

I o

25

/0.25 9

I o

26

/0.4 10 I

o 27

/

0 11 I

o 28

/0.6 12 I

o 45 I

o 13

/6.0 SSA/

0 14

/4.0 57A /

0 e

80,84/ 0.3 81,85/ 1.4 82,86/ 0.15 97A

/

0 97D

/

0 l05D

/

0 Total Type C leakage to be added 15.018 SCFH Total Type B leakage to be added Total Types Band C leakage to be added 0 SCFH 15.018 SCFH 0.005 percent/day NOTE:

The above penetrations were in a non-vented valve lineup configuration for this test, with their respective leak rates per 2-PT-16.3B and 2-PT-16.4.

3-9

PENBTRATION PERSONNEL AIR LOCK l!.QUIPMENT HATCH PENBTRATION PERSONNEL AIR LOCK

~UIPMENT BA'l'CH PENETRATION PERSONNEL AIR LOCK J!QUIPMENT HA'l'CH P&NETRATION PERSONNEL AIR LOCK EQUIPMENT HATCH APPENDIX llA 1978 TYPE B DATA SUMMI\\RY EQUIPMENT TESTED 0-RING 0-RING PRfilU,PAIR LrnGE C.SCTlfl 48.0 o.o 1977 TYPE B DATA

SUMMARY

EVUIPMENT Tl!.STED 0-RING 0-RING PR.E.lU.PAIR LEAKAGE CSCJ!'H>

1.0 o.o 1976 TYPE B DATA SU~.IMAkY

~S,>UlPMENT T£STED 0-RING 0-RING PR.l!RF.PAIR LEAKAGE CSCFH>

22.3 5.2 o.o 1975 TYPE B DATA

SUMMARY

EyUIPMENT TESTED 0-RING 0-RING PIIBR.I!; PAik LEAKAG~1SCFH) o.o o.o PO.S'l'.REPAIR Ll:AJ:\\Ali.E. 1SC.f'ht o.o N/A P~'l' 1-U:.PA.IR LEAKAGE(SCFH)

N/A PO.ST RU>AIR Lfilu<.AG.E.,sc~*H1 o.o N/A POST lU.PAIR LEAKAG~CSCFHl N/A

?oi/A N/A Ri.MARK.S N/A N/A N/A N/A All electrical penetrations were tested trom 1975 to 1978 with no significcmt 1eakag~ noted or repairs required.

e

64 61 56 56 56 57 70 Penetration No.

Containment Spray (CS)

Sample System (SS)

Recirculation Spray (RS)

Valves Tested MOV-CS-2CllA MOV-CS-201B MOV-CS-2CllC MOV-CS-201D TV-SS-2ClClA TV-SS-200B TV-SS-2Cl2A TV-SS-202B TV-SS-2Cl6A TV-SS-2Cl6B TV-SS-2CllA TV-SS-201B MOV-RS-256B 1978 TYPE C DATA

SUMMARY

Prerepair Leakage (scfh).

38.316 35 0

0 120 0

167 0

1.488 0

15.996 4B-7 Post-Repair Leakage (scfh) 16.0 20 5

6 13.02 0

0 (l

0 0

0 7.44 Remarks Lapped seats and disk (201A)

Set limit switches (201A)

Lapped seats and disk (201B)

Set. limit switches (201B)

Set limits Disassembled cleaned valve Disassembled cleaned valve Set limits Replaced valves; Design Change 78-01 Replaced valves; Desig~ Change 78--01 Replaced valves; Design Change 78-01 Replaced valves; Design Change 78-01 Adjusted limits, cleaned valve e

1977 TYPE C DATA

SUMMARY

(CONT)

Prerepair Post-Repair Leakage Leakage Penetration No.

Valves Tested (scfh)

~scfh)

Remarks 19 Charging MOV-2381 10.0 0

Reset limit switches (CH) 36 Charging 2-CH-323 0.05 N/A N/A (CH) 37 Charging 2-CH-333 (l.25 N/A N/A (CH) 35 Charging 2-CH-349 J.8 N/A N/A (CH) 60 Safety Injection MOV-2890A 1.55 N/A N/A (SI) 62 Safety Injection MOV-2890B 1.48 N/A N/A (SI) 61 Safety Injection HOV-2890C 4.8 N/A N/A (SI)

MOV-2864A&B 0

N/A N/A 21 Safety Injection MOV-2842

1. 52 N/A N/A (SI) 113 Safety Injection 2-SI-174 0

N/A N/A (SI)

MOV-2869A 23 Safety Injection MOV-2869B 74 3.3 Renewed valve (SI) 7 Safety Injection 2-SI-150 40 19 Lapped seat and disk 2867C (SI)

MOV-2867C&D J.3 Lapped disks and seats 2867C&D Lapped disks and seats 2867D 46 Charging FCV-2160 0.35 N/A N/A (CH) 20 Safety Injection 2-SI-32 0

N/A N/A (SI) 106 Safety Injection 2-SI-73 0

N/A N/A (SI) 97 Sample System TV-SS-203 3.(l N/A N/A (SS) 41\\-8

1977 TYPE C DATA

SUMMARY

(CONT)

Prerepalr Post-Repair Leakage Leakage Penetration No.

Valves Tested (scfh)

(scfh)

Remarks 24 Residual *Heat Removal MOV-Rll-200 5,0 N/A N/A (RH) 66, 69 Recirculation Spray MOV-RS-255A&B 370 N/A Tightened flange (RS) 550 67, 68 Safety Injection MOV-RS-2860A&B 175 0

Lapped seat.and disk, replaced packing and*

(SI) bonnet gasket 53 Safety Injection TV-SI-200 0

N/A N/A (SI)

TV-SI-234 0

N/A N/A e

105 Liquid Monitoring TV-LM-201A 0

N/A N/A (LM) 105 Liquid Monitoring TV-LM-201B 0

N/A N/A (LM) 93 Gaseous Waste 2-GW-166 0

N/A N/A (GW) 92 Gaseous *waste 2-GW-175 0

N/A N/A (GW) 15 Charging 2-Cll-309 180 0,9 Lapped seat and disk, replaced packing and (CH)

MOV-2289A 8

.17 bonnet gasket 28 Chemical & Volume Control HCV-2200A,B,C 0,38 N/A N/A TV-2204 0

N/A N/A 55 Sample System

TV-SS-204A 74 0

Adjusted stem travel (SS)

TV-SS-204B 72 0

Adjusted stem travel 56 Sample System TV-SS-200A 0

N/A (SS)

TV-SS-2008 0

56 Sample System TV-SS-202A 0,27 0

(SS)

TV-SS-2028 0.04 1.1 56 Sample System TV-SS-206A 72 0

Adjusted stem travel (SS)

TV-SSS-2068 0

0 57 Sample System TV-SS-201A 3.5 1,37 Adjusted stem travel (SS)

TV-SS-2CllB 0

0,6 Cleaned valve 33 Gaseous Drains TV-DG-208A 6.2 N/A N/A (DG)

TV-DG-2088 2.0 N/A N/A 4B-9

1977 TYPE C DATA

SUMMARY

(CONT)

Prerepair Post-Repair Valves Leakage Leakage Penetration No.

Tested (scfh}

(scfh}

Remarks 4.5 Primary Grade Water 2-RC-160 0

N/A N/A (PG)

TV-2519A 0.18 N/A Renewed diaphragm 103 Reactor Cavity Purification 2-RL-3 0

N/A N/A (RL}

2-RL-5 104 Reactor Cavity Purification 2-RL-13 0

N/A N/A (RL}

2-RL-15 0.06 N/A N/A 63 Containment Spray 2-CS-24 0.1 N/A N/A gask.

(CS}

MOV-CS-201C&D 48 6.5 Lapped seat and disk, replaced bonnet valves. Replace cam assembly on limit switch 64 Containment Spray 2-CS-13 0

N/A N/A (CS}

MOV-CS-201A,B 22 N/A N/A 70 Recirculation Spray 2-RS-11 1.2 0

Repacked valve (RS}

HOV-RS-256B 12 N/A N/A 71 Recirculation Spray 2-RS-17 0

N/A N/A (RS)

HOV-RS-256A 60 6.9 Renewed disk 38 Aerated Drain TV-DA-2CIOA 0

N/A N/A (DA}

TV-DA-200B 3.5 N/A N/A 48 Vent & Drain TV-VG-209A 0

N/A N/A (VG}

TV-VG-2098 0

N/A N/A 54 Primary Vent 2-VA-l 0

N/A N/A (VA) 2-VA-9 0.32 N/A N/A 50 Safety Injection TV-Sl-201A 0.3 N/A N/A (SI)

TV-SI-20111

.9 1.2 Adjusted for more seat pressure 47 Instrument Air l-IA-704 0

N/A Lapped seat and disk (IA) 2-IA-868 9

0 58 Instrument Air 2-IA-704 180 0

Lapped seat and disk (IA) 2-IA-864 J.7 2.4 Lapped seat and disk 42 Service Air 2-SA-81 0.05 N/A N/A (SA}

2-SA-82 1, 5 N/A N/A 43 Air Monitoring 2-RM-3 1.43 N/A N/A (RM}

TV-RM-2CIOA 6.9 N/A N/A 4B-10

Penetration No.

Valves Tested 44 Air Monitoring TV-RM-200B (RM)

'IV-BM-2000 91 Ventilation MOV-VS-200A (VS)

MOV-VS-200B MOV-VS-202

<JO Ventilation MOV-VS-200C (VS)

HOV-VS-200D HOV-VS-201 93 Containment Vacuum TV-CV-250A (CV)

TV-CV-250B 92 Containment Vacuum TV-CV-250C (CV)

TV-CV-250D 94 Containment Vacuum HCV-CV-200 (CV) 2-CV-2 89 Air Ejector Discharge 2-VP-12 TV-SV-202 97, 105, Leakage Monitoring TV-LH-200A 55, 57 (LM)

TV-LH-200C TV-LH-200E TV-LM-200G TV-LH-200B TV-LM-200D TV-LM-200F TV-LM-200H 1977 TYPE C DATA

SUMMARY

(CONT)

Prerepair Leakage (scfh) 0 0

6,8 8,8 0,25 13 0,28 0,05 0

0 0

0 320 0

0 0

4B-ll Post-Repair Leakage (scfh)

N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A o.25 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Remarks Lapped seat and disk

r 1976 TYPE C DATA

SUMMARY

Prerepair Post-Repair Leakage Leakage Penetration No.

Valves Tested (scfh)

~scfh)

Remarks 19 Charging

MOV-2381 1.1 N/A N/A (CH) 36 Charging 2-CH-323 0

N/A N/A (CH) 37 Charging 2-CH-333 2.36 N/A N/A (CH) 35 Charging 2-CH-349 o.47 N/A N/A (CH) 61 Safety Injection MOV-2864A&B 0

N/A N/A (SI)

MOV-2890C.

N/A N/A N/A 7

Safety Injection MOV-2867C&D 11.9 N/A*

N/A (SI) 2-SI-150 46 Charging FCV-2160 93 0

Cleaned valve seat, disk, and internals (CH) 20 Safety Injection 2-51-32*

0 N/A N/A (SI) 106 Safety Injection 2-51-73 0

N/A N/A (SI) 97 Sample System TV-SS-203 o.n N/A N/A (55) 24 Containment Spray 2-CS-34 13.2 N/A N/A (CS)

e 66, 69 Recirculation Spray MOV-RS-255A,B 1000 0

Valves renewed; Design Change 75-44 (RS)

Aligned valve plug with operator (255A)

Aligned valve plug with operator (255B) 67, 68 Safety Injection MOV-2860A&B 10.0 Lapped valves and disk prior to test (SI) 53 Safety Injection TV-51-200 50.64 0

Replaced gaskets and packing, adjusted stroke (SI) 2-51-234 0

N/A 105 Leakage Monitoring TV-LM-lOlA 0

N/A N/A (VI)

TV-LM-1Cl1B 0

N/A N/A 48-12

1976 TYPE C DATA

SUMMARY

(CONT)

Prerepair Post-Repair Leakage Leakage Penetration No.

Valves Tested (scfh)

(scfh)

Remarks 93 Gaseous Waste 2-GW-166 0

N/A N/A (GW) 92 Gaseous Waste 2-GW-175 0

N/A N/A (GW) 15 Chemical & Volume Control 2-Cll-309

2. 76 N/A N/A (CH)

MOV-2289A 0

N/A N/A 28 Chemical & Volume Control TV-2204

0 N/A N/A (CH)

HCV-2200A,B;C 3.7 N/A N/A 550 Sample System TV-204A 0

N/A N/A (SS)

TV-204B 0

N/A N/A 56C Sample System TV-200A 0

N/A N/A (SS)

TV~200B' 0

N/A N/A 560 Sample System TV-202A 0

N/A N/A (SS)

TV-2021\\

5.5 4.81 N/A 56B Sample System TV-206A 0

N/A N/A (SS)

TV-206B 0

N/A N/A 57B Sample System TV-201A 20 0

Replaced closing spring (SS).

TV-201B *

.08 0

Replaced bellows 33 Drains & Vents TV-DG-208A 2.34 N/A N/A (DG)

TV-DG-208B

.95 N/A N/A 45 Primary Grade Water TV-2519A 48.36 0

Replaced diaphragm gasket-(PG) 2-RC-160 149. 73 Lapped valve, replaced bonnet Lapped valve (2-RC-160) 103 Reactor Cavity Purification.

2-RL-3 25 0

(2-RL-5) Replaced diaphragm (RL) 2-RL-5 63 Containment Spray 2-CS-24 0

N/A N/A (CS)

MOV-CS-201C&D 4.2 0

Stoned gates and seats both valves Adjusted limit switches (201D)

Adjusted limit switches (201C) 64 Containment Spray 2-CS-13 0

N/A N/A (CS)

MOV-CS-2l<'A&B 3.27 13,8 Lapped seats Adjusted stroke Adjusted stroke 4B-1J

70 7l 38 48 54 50 47 58 42 43 44 91 90 93 92 Penetration No.

Recirculation Spray (RS)

Aerated Drain (DA)

Vent & Drain (VG)

Primary Vent Pot (VA)

Safety Injection (SO Instrument Air (IA)

Instrument Air (IA)

Service Air (SA)

Air Monitoring (RM)

Ventilation (VS)

Containment Vacuum (CV)

Valves Tested 2-RS-ll MOV-RS-256B 2-RS-17 MOV-RS-256A TV-DA-200A

TV-DA-200B TV-VG-209A TV-VG-209B 2-VA-1 2-VA-9 TV-SI-20U TV-SI-2018 2-IA-704 2-IA-864 2-IA-868 l-IA-704 2-SA-81 2-SA-82 2-RM-3 TV-RM-200A TV-RM-20C1B TV-RM-20CIC MOV-VS-200A MOV-VS-20C1B MOV-VS-202 MOV-:-VS-20CIC MOV-VS-200D MOV-VS-201 TV-CV-250A TV-CV-250B TV-CV-250C TV-CV-250D 1976 TYPE C DATA

SUMMARY

(CONT)

Prerepair Leakage (scfh) 14.8 9.75 0

55.8 0

0 o.9 0

0 3.1 13.39 12.9

,74

.1

.12 0

0 (l

4.53 0

37.2 0

0 (l

o.63 52.08 0

0 0

0 4B-14 Post-Repair Leakage (scfh)

.67 N/A 1.66 N/A N/A N/A N/A N/A 0

.165 4.36 N/A 0

N/A N/A N/A N/A N/A N/A (I

0 N/A N/A N/A 0.86 N/A N/A N/A N/A Remarks Repaired seat and flapper; renewed gaskets N/A N/A Lapped seat and disk N/A N/A N/A N/A N/A Lapped disk and seat Machined disk and seat Lapped disk and seat N/A Lapped valve N/A N/A N/A N/A N/A N/A Adjusted valve stroke N/A N/A N/A N/A Cleaned rubber seat, emery clothed metal disk, replaced gaskets N/A N/A N/A N/A

94 89 97, 55, Penetration No.

Containment Vacuum (CV)

Air :Ejector Discharge (VP)

105, Leakage Monitoring 51 (LM)

Valves* Tested HCV-CV-200 2-CV-2 TV-SV-202 2-VP-12 TV-LH-200A TV-LH-200C TV-LH-200E TV-LH-200G TV-LM-200B TV-LH-200D TV-LM-200F TV-LH-200H 1976 TYPE C DATA

SUMMARY

(CONT)

Prerepair Leakage (scfh) 3.9 14,6 0

44.64 0

0 4B-15 Post-Repair Leakage (scfh)

N/A

,25 N/A 2,0 N/A N/A r;.*

Remarks N/A Cleaned valve seat and disk N/A Lapped seat and disk N/A e

N/A e

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