ML19329F995

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Addendum to Rept for Reactor Containment Integrated Leak Rate Test First Retest - Aug 1979.
ML19329F995
Person / Time
Site: Salem PSEG icon.png
Issue date: 07/08/1980
From:
PSE&G RESEARCH CORP., Public Service Enterprise Group
To:
Shared Package
ML18082A703 List:
References
NUDOCS 8007110450
Download: ML19329F995 (22)


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ADDENDUM TO THE REPORT FOR REACTOR CONTAINMENT INTEGRATED LEAK RATE TEST FIRST RETEST - AUGUST 1979 UNIT NO. 1 SALEM NUCLEAR GENERATING STATION l l l l 4 Prepe. red by l P.S.E.&G. RESEARCH CORPORATION l RESEARCH AND' TESTING LABORATORY L

                                               ~

800711045 0 1 . .. . . - - .- __

4

 . ej' TABLE OF CONTENTS SECTION
l. Introduction a

i- [ 2 Summary of all B&O Type tests performed since the last Typn A ILRT 2.1 Type C Leakage Summary i 2. 2 - 2. 5 Revised Type B&C Leakage Sumnary Sheets 3 Penetration 19, Valve IVC 2

                             .3.1      Analysis 3.2      Test Data Sheet 3.3      Procedure - Check off sheet 4.1
Page 6 4

i 4 .An'alysis of water inventory change during the ILRT 4.1 Containment Sump Level 4.2 Reactor Coolant System 1 4 4.3 Graph of Containment Pressure vs. Events 4.4 Summary of Operator Log Data i 4 t i O . I l l

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1.0 INTRODUCTION

An inspection of the Salem Generating Station was per-formed by Mr. Walter Rekito, Reactor Inspector, from the Nuclear Regulatory Commission Office of Inspection and Enforcement, on April 22 thru April 25, 1980. The NRC Inspection number is 50-272/80-10. The inspection included a review of the records, procedures and data relevant to the Reactor Containment Leakage Test Report. The results of the inspection were reported as follows: One item of noncompliance (Deficiency Level) and one unresolved item pertaining

    -        to the ILRT of Unit 1.

This addendum to the ILRT report is-the response to the inspection and will, upon submittal to the NRC, provide the data required to correct the item of noncompliance, and the data and analysis necessary to resolve the unresolved item. The specific inspection items which are the subject of this addendum are as follows: A) Item of Noncompliance - Deficiency Level

                                                       ~

The report failed to include all Type C valve tests performed since the last Type A test, in the B&C Test Leakage summary.

(O x' The data pertaining to these eight tests has been retrieved and a new summary sheet is included showing the total leakage to date. An analysis of the Type C test of Penetration 19, Valve IVC 2, is included. This valve was the only valve not in alignment during the Type A test and was included in the Type C Leakage added to the ILRT along with Penetrations 40, 61A and 61B. The Test Data sheet and the change in the procedure master (Check off 4.1, page 6) are also attached to this addendum. B) Unresolved Item The volume of water contained in the reactor containment sump and reactor coolant system were not evalua'ted upon conclusion of the Type A test. A detailed review of all available records was conducted and an evaluation was made of the contribution that each system had on the results of the Containment Integrated Leak Rate Test. The evaluation showed that the reactor coolant system did not have an affect on the ILRT. The containment sump level did have an affect of significance to change the ILRT results, however the new figures 1 do not exceed the acceptance criteria of 0.1%/ day (a .

t as calculated, or the leakage at the upper confidence limit of 0.075%/ day. i The new figures are provided in the summary. 1 i The-analysis and the data summary are included l; in this addendum for clarity. J J a 1 l I + r i I l I f l

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2

SUMMARY

OF ALL B&C TESTS PERFORMED SINCE THE LAST TYPE A ILRT l 0 l O l

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     ,)     2.1   Type C Leakage Testing Summary Attachment to Page 5E/5F The following valves (asterisked in the summary), failed their leak rate tests, were repaired and retested as indicated. The fact that the "as-found" leakage in many cases exceeded the 2000 sccm upper range of the leak rate tester, required reporting of these tests by an LER.

This.was done on LER 50-272/79-51/03L-1 dated 8/29/79. Date Tested Present Date Tested Valve ID As Found Test No. Leakage Test No. Repaired-IAW 12 GB 4 >2000 sccm 4-10-79 0 sccra 4-27-79 TDR 171 19A 19A-5 i 14 GB 4 >2000 sccm 4-11-79 0 scem 4-27-79 TDR 171 20A 20A-7 1 NT 26- >2000 sccm 4-17-79 222 seem 4-18-79 TDR 159 69A 69A-1 1 NT 34 973 seem 4-20-79 225 sccm 4-21-79 TDR 170 82A 82A-1 1 PR 18 162 sccm 4-16-69 74 seem 4-18-79 TDR 158 68A 68A-1 1 SS 49 >2000 scem 4-20-79 007 scem 4-24-79 TDR 168 78A 78A-1 i 1 SS 107 >2000 sccm 4-20-79 008 sccm 4-24-79 TDR 169 77A 77A-1 Supporting documents are available at Salem microfiche. A 1 l l

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286E003 C'y* O U n) ( cot 1TAINMENT TYPE D & C LEAKAGE

SUMMARY

SilEE ' , y Pre Op. Type A, B, & C Leakage: 33,695 g Pre Op. Type B & C Leakage: (Type B: 589.5, Type C: 3550.5): 4140

      $                     Allowable Type B & C Leakage (0.6 La) = 129,750 SCCM ~

M 4 Allowable Airlock Leakage (0.05 La) = 10,812 SCCM I'REVIOUS CURRENT DELTA PRESEllT COMPONENT LEAKAGE LEAKAGE LEAKAGI- SUM D & C REMARKS TEST DATE TESTED SCCM SCCM SCCM LEAKAGE (SCCM) 11/14/77 CARRIED FO WARD FROM ' :IIEET 3 6438.9 3/21/78* 130' Air 559 256 -303 6135.9 Lock 3/23/78 100' Air 23 481 +458 6593.9 Lock 208 Valve r paired & tested 5/1178 1SS107 2 +205 6798.9 due to body / bonnet leak y

      $                       9/5/78    100' Air Lock 481             289      -192       6606.9 q

9/6/78 130' Air 256 847 +591 7197.9 4 Lock 1/4/79 NOTE: Total acctu tulated leal age corre :ted pdr NRC request duri la audit on 1/4/79. Reason: I rocedure1 1 sed the least conservati re leakane of two valves in a sir gle path. Procedure M16E correction initiated. All past ot tage data c orrected :o reflect the conservati<re accumulated leakage. h YO [*4 tf TN TA f/V YA> dS /

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PAGE 4 u&vd

   'f N .                                                          f1                                                     Yi s()                                                              V'                                                       V VALVES                              PREV. LEAK                           PRESENT LEAK        DIFFERENCE +

1 2 3 1 2 3 1 2 3 11CA330 - - 123.0 - - 0.0 -

                                                                                                                      -123.0 12CA330             -            -

4.0 . 0.0 -

                                                                                                                     -1 4.0 ICCll3               -            -                     ~            ~                     ~

10.0 0 - 10.0 ICC215 - i - - - - ICCll7 1CC118 1 - 82.0 72.0- - 755 758 +676.0 ICC190, 208 1CCl31 - 1.0 0.0 - 443.0 120.0 -

                                                                                                                     +442.0 ICC186, 187 1CCl36               -

100.0 ,, 30.0 - 53.0 0.0 -

                                                                                                                     - 47.0 ICV 3, 4, 5 1CV7                 -

14.0 0.0 -

                                                                                      .86.0          0.0 l
                                                                                                                     + 72.0 ICV 74       1CV69                       No Prev.      0.0                       3.0          0.0             +

3.0 Test m c 1CV284, 296 1CVll6 106.0 0.0 653.0 +547.0 8 , 48.0 - l r - 1DR29 - - 3.0 - - 29.0 -

                                                                                                                     + 26.0 k             -

1FP147 - - 300.0 - - 76.0 -

                                                                                                                     -224.0-llGB4               -            -

2.0 - - 231.0 -

                                                                                                                     +229.0 12GB4*              -            -
                                                             'O.O          -             -

0.0 -- - 13GB4 - 33.0 581.0 +548.0 14GB4* - - 0.0 - - 0.0 - - INT 26* INT 25 - Not 14.0 - 222.0 25.0 -

                                                                                                                     +208.0 I             Tested INT 34*      1NT32               -

Not 1.0 - 225.0 105.0 -

                                                                                                                     +224.0 Tested IPR 17       lPR18*             -

28.0 68.0 - 28.0 74.0 + 6.0 ISJ123 1SJ53, 60 - 5.0 10.0 - 0.0 0.0 -

                                                                                                                     - 10.0
     , 1SS103       ISS27              -

0.0 0.0 - 0.0 0.0 - - u ISS104 ISS33 - 22.0 11.0 - 0.0 9.0 -

                                                                                                                     - 13.0
  • Valves failed initial Type C Test, See attachment for details PAGE 5E

g -p gm- s tg Q L) VALVES PREV. . LEAK PRESENT LEAK -DIFFERENCE + ~ l- 2 3 1 2 ~3 1 2 3-ISS107* 1SS49* - 3.0 1.0 - 8.0 7.0 -

                                                                                                                    -+         5.0 ISS110      ISS64           -

4.0 3.0 - 0.0 0.0 - - 4.0 llSS94 - - 0.0 - - 0.0 - - 12SS94 .- - 0.0 - - 0.0 - - 13SS94 - - 0.0 - - 0.0 - 14SS94 - - 0.0 - .- 0.0 - ' - IVCl -

                                                     - ,     2.0         -             -

0.0 - - 2.0

                    . IVC 4           -              -

0.0 - - 0.0 - - IVC 5 - - 792.0 - - 22.0 -

                                                                                                                     -7'70.0 g   IVC 7       IVC 8           -

0.0 0.0 - 0.0 0.0 - - a3

   , o    IVCll       IVCl2           -

0.0 0.0 - 0.0 0.0 - - u d o lWL12 lWL13 - l j 73.0 95.0 - 126.0 91.0 -

                                                                                                                     + 31.0 m

g lWL16 lWL17 - 2.0 8.0 - 0.0 0.0 - - 8.0 lWL96 1NL97 -

                                                   '4. 0     0.0         -

184.0 154.0 -

                                                                                                                     +180.0 1WL98       IWL99,          -

0.0 16.0 - 01.0 0.0 -

                                                                                                                     - 16.0 108 a

LWR 81 LWR 80 - No Prev. 13.0 - 19.0 1.0 -

                                                                                                                     +        6.0 Test d

s

  • Valves failed initial type C Test, see attachment for details '

PAGE EF

p: -t g %, 4%

                                                           'h'                                                ul                                              'v 2.5      CONTATNMErlT TYPR D  f. C LHAKAGE SUMIMRY S!!CET f

Pre Up Type A, 11 , & C Leakage: 33,695 - Pre op. Type n & C Leakage: (Type B: 509.5, Type C: 3550.5): 4.140

                  %                                          isllowable Type D & C Leakage (0.6 La) = 129,750 SCCM                                                      '

to Allowable Airlock Leakage (0.0 5 La) = 10,812 SCCM P!1EVIOUS CURllENT DELTA PHESl;tJT TEST DATA COMPONENT LEAKAGE LPAKAGC LEAKAGF SUM B &C REMARKS TESTED SCCM SCCM SCCM LEAKAGE (SCCM) Total carried fontard from previous 10321.7 Page SA of Report 11-1-79 100' Air 1240 -0 -1240 9081.7 Lock 10-13-79 130' Air 1048 14 -1034 8047.7

                                                               .              Lock m                                              11-10-79     Valve            22     1528           +1500      9547.7      Work Order OP-913925 J-                                                                   IVC 5                                                         DCR l-EC-0678
OD 914310
                      )                                                                                                                     Burrs on shaft y                                                                                                                         Valve not operating smoothly 1-16-80    Cont. Equip.        0         9              +9     9556.7      MD 916069 Hatch                                                        lE IN 79-33 10-4-79      Valves            0      206            +206      9762.7      OD 905618 VCl & VC2                                                       Shaft binding 1-23-80    #25 Elec.           0         0               0                 Suspected loss of
?enetration pressure determined to be loose ~ fittingt not part of barrier x 3-25-80 100' Air 0 29 +29 9791.7 Lock 3-27-80 130' Air 14 36 +22 9813.7 "

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3 PENETRATION 19 f 4 f t I O

       -v,-r--- , - r -- ,-     -a  -n-, . ., , - , . - - - -, - - - -     -
                                                                             ,,._,,,, .,_ - . -e   nn----,---_. , ,n.,,-.,,_-,,, - , . , - - - ,

Suggested attachment to Table 1 Section 7.1 3.1 Analysis Penetration 19 Type C measured leakage was added to the

     " Type C Leakage to be Added" section of Table 1, because the valve closure had not been " accomplished by normal operation and without any preliminary exercising and adjustments...."

(10CFR50 App. J sect. II A (b) . ) The valve IVC 2 had been removed for repair of a binding chaft just prior to the ILRT. (Work Order O.D. 905618) - Subsequent re-installation of the valve could not be completed, in that (') the control air lines connections and retest were not possible after the control air system penetrations to the containment had been isolated and vented as a prerequisite of the ILRT. The valve body was received from the repair facility in the closed position and installed in the line without further question, just prior to commencement of the ILRT. The other penetrations, 40, 61A/B, are included because they were open to support the test itself. , 1 l Os \) l

3.2 [<i S7-Ho. ff/? SALF_M GENERATING STATION MJsI'IT.9fANCE DEPARTMENT PROCEDURE M16E

,.m                TYPE B & C CONTAINEIT LEAK RATE TEST DATA SHEET t     1                                     (.T . S . 4.6.1.2 & 3)

(f  % d 7- NC./ Test Date: //1- #- 7 9 Co:nponent Tested: / /'d / V- / F'd .2_

                         .                   .                                            ?E.<)f h &ly)        *'&
                                                                                                                  /l Instrumentation Calibration:

1 Leak Detector: Mod. No. / </ JJ,7 Ser. No.: // f' Cal. Date:9-/_4-7f

                                     /y'/9 Gage: ID No.:                               Cal. Date:                NA Y
1. Syster prepared for test (EPD Rep. Sig. ) : ,-r d ,
                                                                                                     ,/-g          -
2. Test conducted per Figure 2:
                                                                                                          ~

(Elect'rical Penetration Only: Pre-test press. jf/// psig)

  • Inst =. integrity check performed: / c - 4'- 7 7 S t a.-t : Time: /00 0 Pressure: 4' 7, o

_ (Min. test tirte 15 min. ) Instr. reading: ,2O g S c c,.r/ Correction: o o r; J e c er7 p Actual leakage: 4 0 /J Jod47 (Ref. leakage /[('B S(t/1 ) Finish: Time: /0 /J' Pressure: /-/7 0 (Electrical Penetrat' ion Only: Post test dew point: N/) Post test U 2 charge pressure: g,9 psig). Test connections shut and caps installed: #4 AI or QA conducted surveillance during test: Yes / No Test Perforced by: .T. d .,,,,'z, 8 , scs EPD Review: g VERiflED QC Test resultc: Accepted: Rejected: 3 Applichble D/R or W.O.

                                                                  //f-r                 ,                        [y.y I          -      #
                                                                                                        /0j'/ 7 /c LEVEL 2          REV I EW                                S"               '      '

EYD Rep. Signature and Date[ [ ' b) y [I 4 DA TE /d /C 77 E n e r ., / L L Review: 1,0 I W )f!J)-bk.fR Gene;.ai M:.'nacer l0 lf flf

                                       /                                    .
                                                                                                      /O -/o- 7f p                                      Date               Manacer-Macer 1als Div.                       Data L~)         ()           U~                     .
                                                                ~

Eubwh h_9 Procccura Revxw anc) Apprc//a1 (Leak Testing Level III)

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VA~- CHECK OFF SHEET 4.1

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3.3 SP (0) 4 . 6 .1. 2 - VALVE LINE"P AND DEVIATION

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I I i 4 ANALYSIS OF WATER IlWENTORY CHANGE DURING THE ILRT

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Procedure SP (O) 4.6.1.2 (Check off sheet 4.7) 1 I l RCS Water Level / Cont. Sump. Level f-i } i l 4 4 , ~ j l 1 4 i i 4 1 t 1 O t e-e vw a-m r- v ~ , - -p e yw - ,p ..,--n,--g , , .----,-,y .,.,---n-w-c-,-~,,,--,a-,,--n--,, ,w-- , . - - --.,,-e,- - - , ~ , - --m,-w,---mr--e- e- e ,, mm

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4.1. Containment Sump Level (ref. PS Dwg. 201275AB3556-6) h'.}\ Sump Level before the test 70'? "el = 0 ft 8 Step 5.7 Sur mevel after the test = 77'O "el = 144 fts Step 5.30 Equivalent in percent of containment free volume 8

                                          = 144t2.62x10    = .0055%

Therefore, the reported leak rate total would have to be increased from 0.056 to 0.062% per day and at the U.C.L. t from 0.062 to 0.068% per day following the intent of the procedure. However, it is believed that most of this water entered the sump from continuous leakages of service water at various valves and joints inside the containment. Service (~.% kr' water was in operation to support running the containment fan coil units. The aggregate of these known S.W. leaks was variously estrmated at one or less gallon per min. by different inspectors. The time period between sump inspections (0600 on 8/9 to 1200 on 8/13) is 102 hrs. so the indicated leak rate to the sump is: L g, ,

                           = 144 ft 3x7.48 gal /ft 8 = 10.56 gal /hr.

102 hrs = 0.18 gpm

                                                     =  670   scem Since the impact of the water inventory change on the test measurement should be confined to the inventory change that took place during the measurement, it is appropriate to r)

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      ,         add the above figure, as an additional penalty, to the
                " Type C Leakage to be added", Section 7.1 Table 1.      This raises the total " penalty" to 898 sccm, or about 0.0016%

per day. Therefore, the total calculated leak rate is adjusted (rounding off to three significant digits) as follows:  ; L,,= 0.058%/ day UCL = 0. 06 4 %/ day 4.2. Fressurizer Level Check off sheet 4.7 records Pressurizer Level at 2% before the test, and at 82% after the test, as read on the Cold _ calibrated level instrument. Fortunately, data could be 1 le I retrieved from operators logs, showing that pressurizer level remained constant during the execution of the measure- .F ment program, at 2% indicated. During pressurization, the control room operator found it necessary to charge into the RCS frequently, in order to keep pressurizer level indication above zero on-his instrument. This was because as the containment air pressure increased, the air trapped at the top of the Steam Generator U-tubes was compressed. This, of course, was due to the water level in the pressurizer seeking static equilibrium with the water level in the steam generators primary side. P O

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     /    On depressurization, water surged back out of the U-tube bundles, raising pressurizer level to 82% (cold calibrated) before the' operator took action and initiated low pressure letdown via the RHR system.

See the attached graph of containment pressure and other significant events which occurred during the ILRT. The attached summary of excerpts extracted from microfilms of various operators' logs and Test Engineers' data sheets is included for clarity of events as shown on the graph. Other tanks of interest include the VCT, RWST, RCDT, and PRT. All of these tank levels were logged periodically

;         during the test by the operations staff, and all remained constant.

It is concluded therefore, that no water inventory change took place in the RCS or connected systems during the time of the reasurement program, and no additional corrections to the measured leak rate are required. I I0 p i-~- - -- - v-

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1 f'/ 4.4 Summary of Operators' Log Data during the ILRT Date Time Event Log Remarks 8/9/79 0600 Pumped down Cont. Sump. Tagged out sump pump 1225 C&T 11 & 12 Primary water pump and LWR 80 1440 Gagged ICV 77 and ICV 79 2200 C&T Lighting Breakers 2316 Commenced Pressurization 8/10/79 0315 Pressure at 10 psig 0520 Pressure at 15 psig 1015 Stopped pressurization - 1418 Resumed pressurization (f 1700 Tagged 1 SJ, 4, 5, 12 and 13 1845 Pressure at 35 psig 2250 13 charging pump in service to increase pressurizer level 2311 13 charging pump out of service 8/11/79 0000 Pressurizer level = lt 0800 Pressurizer level = 1% 1600 Pressurizer level = 2% 2100 11 and 12 BAT pumps cleared and tagged 8/12/79 0010 Pressurizer level = 2% 0800 Containment pressure at 47.2 psig Pressurizer level = 2% 0 O '

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4.4 .(Continued) Date Time Event Log Remarks 8/12/79 1000 ILRT completect 1305 Personnel hatches equalized 1338 Started depressurization at 15 lb/hr 1700 Pressurizer level = 38% 1807 Containment pressure at 23.5 psig 1911 Pressuriuer level = 56% Containment pressure at 17.8 psig 1946 Pressurizer level = 62% Containment pressure at 15.7 psig 2000 Stopped depressurization at 15 psig Pressurizer level = 64% 2121 Resumed depressurization Pressure at 14.6 psig Pressarizer level = 64.5% 2152 Pressure at 13.1 psig Pressurizer level = 69% Stopped depressurization 2248 Started depressurization Pressure at 12 psig Pressurizer level = 70% 1 g \ Q.)

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