ML20212G953

Forwards Gpu SE Re Review of AP600 Shutdowm Ts.Section B.3.9.4 of STS Cites Gpu Nuclear SE 0002000-001 Rev 0,880520 as Ref E Temporary Containment Penetration Closure Devices Equivalent to Valve or Blind Flange

ML20212G953
Person / Time
Site:	Crane, 05200003
Issue date:	11/05/1997
From:	Berlinger C NRC (Affiliation Not Assigned)
To:	NRC (Affiliation Not Assigned)
References
NUDOCS 9711070232
Download: ML20212G953 (23)

Text

November 5, 1997 e

e MEMORANDUM 10:

File FROM:

Carl H. Berlinger, Chief

/s/

Containment S stems and Severe Accident Branch Division of S stems Safety and Analysis

SUBJECT:

EQUIVALENT ISOLATION DEVICES FOR USE DURING REFUELING In toe course of our review of the AP600 Shutdown TS. it was noted that Section B.3.9.4 the Standard Technical Specifications (STS) cites GPU Nuclear Safety Evaluation SE 0002000-001. Rev. O. May 20. 1988, as a reference relating to temporary containment penetration closure devices equivalent to a valve or blind flange.

it describes the use of RTV sealant as a tem means to seal containment penetrations during refueling operations. porary The GPU document is a TMl 1 internal document for which there is no record in the NRC Document Control System or docket files.

Because this document is referenced in the SlS. it is appropriate that a public record copy be placed in NUDOCS.

This Memorandum to file with the attached GPU safety evaluation, serves to place a copy of the document in the PDR.

Attat.nment: As stated DISTRIBUTION-JStolz WBeckner JPulsipher Central Files NRC PDR SCSB r/f (2) i i

}(h> la DOCUMENT NAME:

SEALANT T9 seceive e copy of the document,ind6cete in the bes: 'C' = Copy without attachment' enclosure

'E'

• Copy with attachmentlenclosute

'N' = No copy 0FFICL SCSB:DSSA:NRR SCSB:DSSA G BC:SCSB:DSSA 1 6 I

I _

NAME WLong:bw JPuls1pherw*di CBerlingerU/le DATE 11/M /97 11/4/97 11/.r /97

/ /97

/ /97 0FFICIAL RECORD COPY p n,[- $ fiu h, lt h a - q l,\\ li \\\\ \\\\.\\\\\\\\. !ll \\\\

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November 5, 1997 g

MEMORANDUM T0:

File FROM:

Carl H. Berlinger Chief

/s/

Containment Systems and Severe Accident Branch Division of Systems Safety and Analysis

SUBJECT:

E' 'lVALENT ISOLATION DEVICES FOR USE DURING REFUELING in the course of our review of the AP600 Shutdown TS. it was noted that Section B.3.9.4 the Standard Technical Specifications (STS) cites GPU Nuclear Safety Evaluation SE-0002000 001. Rev. O. May 20, 1988. as a reference relating to tempo ary containmen' penetration :losure devices equivalent to a valve or blind flange.

It describes the use of RTV sealant as a temporary means to seal containment penetrations during refueling operations.

The GPU document is a TM1 1 internal document for which there 1s no record in the NRC Document Control System or docket files.

Because this document is referenced in the STS. it is appropriate that a public record copy be placed in NUD0CS.

This Memorandum to File, with the attached GPU safety evaluation serves to place a copy of the document in the PDR.

Attachment:

As stated DISTRIBUTION 1 JStolz WBeckner JPulsipher Central Files NRC PDR SCSB r/f (2)

DOCUMENT NAME:

SEALANT 10,.c......., t ini. e.eum.ni, ino..i. in is. 6. : c. coe, wiin.ui.ii.enm.ni,.nci.ur.

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OFFICL SCSB:DSSA:NRR SCSB:DSSA q BC:SCSB:DSSA 6

1 NAME WLong:bw JPuls1pher V S CBerlingerL4l@

DATE ll/n /97 11/4/97 11/f /97

/

/97

/

/97 0FFICIAL RECORD COPY l

I Nuclamar Technical Functions

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Safety / Environmental Determination and 50.59 Review (EP 016) 99it N-t paogiCF kg

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• e ad (Modifical on, procedure, test, experiment. Or document) i le shie activitymocument listed m Secten i or H of the metnces in Corporate Procoowre Eyes "No 1000 ADM 12910tt if the answer to ovepon 1 is "no" stop here t$ection IV actrvtion/cocumente shou 6d be reviewed on a case-py case basis to cetermine if this procoowre.e appicaole ) This pro-coeure is not appi came ano no occumemation is roovirec. H the answer is "yes" procees to cuesten2.

2.

Is this a new actetymocument or a subeiamrw receen ::. actmtymocumemt (see Pee ONo Esheet 1 paragraph a this procoowre for enamp6ee of non awbotantra changeel if the answer to ovedten 2 is "no" esop here. This procoeure is not appicable the no cocumematon to roovired. If the answer is "yes" proceed to answer.I remammg ovestone.

Theee anewere become the Saforptnwronmental Determmation and 6039 Renew.

1 Does this ac'mtygocument hew the potential to seversery aMoct nuclear safety or ante TYes CNo plant operatione?

4.

Does the actmtymocument roovere rece on of the eyetemAcomoc,nem coecnoten m the FEAR OWs 2No or omerwise reevire r. mon of the Techneral Specificatene or any emer part of the SAR?

5.

Does the actmtymocument requwe roweson of any procedural or operateg coecnsmen m

~. Yes TNo the FSAR or otherence roovire toneen of the Techncal Specthcanone or any ceer part of the SAM 7

& Are teste or esponmente conoucted which are not coecnbod h the FSAR. the Techncal

'~ Yes *fNo Specihcatone or any other cart of the SAR?

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• h i, l"'M If any of the snowere so quescone 14,5 or e are yea, propero a wnnen assety evaluenon on a $dery Evolweten torm.

If the answere to 14,5. and 6 are no this precludes the occumence of an Unrenewed Safety O.weeton o,r Technical r.,ecittei.ee % er

,.e a wnnen soemem

,,e space,,

o. a.o.e (o.ac., too.on.noen necessary) to support the determernetton, and last the documeme you ctkscoed.

7 Does ih.e -

e,. e,,y e,.e, son.uuc.ea, o.,,onmem.,peco

ves no 8.

Are the eseign cruena as ovelned M TMl1500 71400 Dev. I or 0C 300 000 Dev. I Plant Cves ENo Lewi Cmens enacted try, or so they aNect the actre;w;?

If yes, hoscale how reseNed if the answer to questen 7 is yes, oather te6esign or proces supporting oocumentation whch will permit Enwron-

,eem. wees.e. to oeiereme n - a,ve,se e.,,on,nem, enp.ci o..e and li,e.,4ato,y app, is,eco,too (Ref.100M,o, M 121103). If m doubt. consult the Radc60gcal and Ermronmemal Cornrois DNeori or Ermronment D

woneing a - o m co,no ong the ev. uat.on.

sien.tu, note l

e r M.* SS f.ngineorongmaior > a,.h e a in w.o 3 Mp tla Section Mane 9

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Does the activitymocument recuire les TR/fFWA/Othet No i Quality Classiheation Ust (OCL) Amenoment?

Ezolain:

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c. Other: (if none, use NA)

This form with the reasons for the answers, together eth all applic4 Die continuation sheets constitutes a wntten Satory Evaluanon.

Use of Effsettve Pages

/ age No.

Rev. No.

Page No, nw. No.

Pete No.

Rev No, t r e e., t e o

4 5egnatures Date A

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6

'ntis vul seal direct access frra omtaiment ataca@en to the cutside atmosphere. This was verified by a 'Du Urtit 1 Plant PavisW CroLp norting bald crn April 25, 1988.

' Die attaded marufactururs test data indicatas a 6" depth of 3-6548 silicans foaa can withstand up to 6 pig differential pressure with a zero leak rata. Also additional penetrants can be insarted into a prvvicusly installed 3-4548 silicene my foam seal and still withstand up to a 3 psig differential pressuru without less of seal integrity.

The foes installation by 1420-FD-1 is equivalent to the marufacturers i

tast tumults. Therefore the marufacturers test ns. tits agert this I

application.

3.3 1he sans charactaristics which have ande the fosa ideal for use as a fire barrier between adjacent ocupartants make it ideal for preventirg spread of airborne ocntamination. If properly installed it should in fact be an air tight ventilaticr) barrier tp to 3-4 psig differential pressure. The additicral caulking around pariastar adds greatar analing capability 14t14 would allev a highar differential,

pressure ta be obtained.

The use of silicxna sealant shall be acreidend ITs (negulatory neg11 red) to assure that the quality standard is upheld. QC verificaticn of acomptable fosa analant installation will be performed by visual inspection.

3.4 plant cperations ccritalment intagrity is designed to limit atmospharu leakage to 0.1% by wei@t of ocritairnent atmosphars at 50.6 psig in a 24 hour2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> period.

Housvar &tring refueling aparetiens the head of the reactor venaal is rescued and the reactor cars is maintained in a sub-critical ocndition of > 1% Dal.a.E at all times. The reactor building pressurs is at t

K aWwie ccnditions or slightly negative. Fual nowenent does not GEA2E the potantial far pnesurizing the ocntainment theu$ it dcas increase potantial for release of fission prc&x:t activity to the contalment etacepharu.

The silicone amalant foam is an===11en ca L to 1

'J. fluid l

pannage, smoke passage, air paaunge, and y,penst M, ed is used anctansively at 'DG-1, i

The une of a si.liczna foam sealant does not altar or affect the 'hch.

'l Spec. required functicn of amintaining stacepharic pressurn contalment integrity daring refuelirq to prevent rulense of significant fission product activity frtaa the contalment atacephare folicwing a fuel handling accident.

Tharsform this activity vill not increase the probability or occurrence or connecpances of an accident or saltuncticn of equipent Important to safety prwviously evaluatad in the safety Analysis Renort.

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I 3.12 Assurance of Adequate Seal l

Corrective Maintanarre PrWtre 1420-TB-1 " Fire Barrf ar Penetraticn Fin Seal Papairs" will be caplied with % installing silicene foam smalant. In addition this non-fire barrier applicaticri vill be controlled by a specific maintanance pztcodure that assures the following:

1.

A minizam of 6 inch depth of barrier (rather than 9 inch rwquired as fire barrier).

2.

A Fin 14all Breaching Notification Form (Attachment 2 of 1420-FD-1) need not be ccarpletad.

3.

A '14mporary Seal Verification Ing Torin (Attachment 3 of 1420-ID-1) need not be ocupletad.

4.

A daily visual re-inspectica by QC or the Cognizant Engineer with h% tion by a nearby postad check off sheet (to assure against.

damage Wdch ocx11d ocaprmina the leak seal).

5.

Acceptable configuration of the foemed spool should be shown.

6.

Prwision for initial QC varjficatics) of proper sealing - acomptance critaria.

7.

Laak tasting by 1303-11.18 after the penetraticos are returned to normal ocnfiguration.

l l

8.

Requirement for prior permissics) of SS/SF prior'to disturbirg the anals once installed.

4.0 EFFIC'IS CH 'DE DNIlttMNP

'Diis has no affacts on erwirtrienntal controls if the seal is properly ed ard maintained. QC inspectier vill be required to l

assure ---t installation and satisfaction of pWiral requirinents.

5.0 CINCI11SICH

'!he use of DC-3 6548 R2V siliccne is an accog%1e substituta to prevent l

direct waan from the ccritainment atmosphers to the cutside atmosphers to maintain contairunent integrity & Iring rufueling operations.

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. 0!rrtRENfl AL PRC550st itst J.048 5ilicone RIV foea 6" Depth. Cylindstitel With Hochemical Penetrant 1.0 _PURPOSC the purpose Jf this test shall be to conclusively tJeaonettete the cepe.

bility of a penettetton sealed with a 6' depth of 3 6568 Silicone RTV foes seal meterial installed in a cylinoerical penetration to withetend lose of seal integrity.

l The penetrating medium for thJe test shall be e !* diameter pipe to 5

assuntiate a mechenical papir,; penetration configuration.

This test shall be perfutsed in the R & O Resenteh facilities of 848 Insulation corporate headquarters in Houston, femes.

2.0 SCOPE this Proceeure prescribes the enthode and guidelines for the fabrication of the test sesenely. installation of recuired seeling materials, pet.

formance of the differential pressure testing and documentation of test g

teaults including the finalization of the test report.

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3.0 PtrtRENets E

3.1 848 Instellation Procedure 65e8.101 (tiertattattes peacInn. tznamic ristm E

Qaseelec settmlats rtyi Mht stLttog sty roam aputttAttDN).

k J.2 848 Installation Procedure 6548.102 (1:staLLatte. anoman. oom casetu:

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l 3.3 848 QCP.1002 tpDetmattme tetettavacytancz catttata. stLtcot roam PDC 7maties).

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5.0 RESPON518 f t ITV i

5.1 The 848 CNCIECRING DCPARi4NT in conjunction with the 848 CUAllfV A55URANtt, shall be responetble to establish the cratorie, guidelines, drawings, recomunendatione, etc. to govern the fabrication of required test steenelles and to govern the performance of this test.

5.2 The 848 PRODUCTION DCPARTENT shall be resoonalble to establish end/or prov10e soolicable Installation Procedures for the installation of test meterial. The fR000Ci10N DCPARf 4NT thall eleo be retoonalble for the fabrication of the test setemolles. instellation of seel estersale. and for the performance of the crosewre testing.

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12/03/82 pegg: 4 et t 6.2 Cylinderice! Preneurs feet Assesely 6.2.1 Refer to 548 Drewing No. 8 282 for construction detalla for the test eeneaely apperetus and to 566 Crewing B 281 for Pressure feet Layout descriptive dete11s.

6.2.2 feet Device shall be constructed of meteriale se shown on the referenced drawings and shall be of welded construction.

6.2.3 Pressure Couges shall be se shown and shall be certified and/

or calibrated with documents on file.

t 6.3 Seeling Material Instellation 6.3.1 feet AsseseT[shell be filled with a 6" depth of 3-6548

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Silicone Riv {oes se shown on Drawing A-302.

6.3.2.lohne-manvil3W Cereboard shall be cut elightly overdine and installed with cutout provided for apprealmetely 2" W

diameter bu%e of penetteting cables.

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6.3.3.lohne-Manv11M Cerefiber shall be inserted between cables et point of desserng to ensole flow of 11guld seal meterial.

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6.3.4 Dessning meterial instelleiton ohell provich, for a 6" cspth of seal material se sneeured from open end of assently.

I 6.3.5 3 6548 $111 cone RTV fosa shell be instelled per soproved g

procedures.

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6.3.4 B&B Ovality Control shall observe, verify end document instelle.

E tion of 3-6548 Silicone Riv rosa per applicable QCP's.

6.4 feet Performance 6.4.1 Pressure test ehe!! be performed per criterte esteb!!shed in Section 6.1 of thte Procedute.

6.4.2 868 Quality Assurance / Quality Control shell monitor the perfor-mance of and document theI results of this pressure test in s Final Report.

6.5 Final Report f.$.1 Results of thte preneurs test shall be doeunented in a final feet Report.

6.5.2 This Report shall contains a) Applicable Corporate Procedure b) Quality ControlDocumentation se opplicable c) e resswrtretton Montterleg escord t-

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