united states * 0 nuclear regulatory commission z …reference: meeting notice by p. s. tam, august...
TRANSCRIPT
UNITED STATES* 0 ~ NUCLEAR REGULATORY COMMISSION
Z WASHINGTON, D.C. 20555
September 1, 1992
Docket Nos. 50-390and 50-391
LICENSEE: Tennessee Valley Authority (TVA)
FACILITY: Watts Bar Nuclear Plant, Units 1 and 2
SUBJECT: MEETING SUMMARY - August 26, 1992, ROUTINE CONFERENCE ONLICENSING STATUS (TAC M72494, M72495, M83948 AND M83949)
Reference: Meeting notice by P. S. Tam, August 13, 1992
On August 26, 1992, NRC and TVA representatives met at the Watts Bar site todiscuss the status, needed actions, priorities and schedules of variouslicensing issues. These include all unresolved outstanding issues,confirmatory issues, proposed license conditions, corrective action programs(CAPs), special programs (SPs), TVA's response to generic letters andbulletins, and upcoming NRR-led team inspections. The discussion was based onthe latest licensing status as published in the Watts Bar Safety EvaluationReport Supplement 9 (NUREG-0847, Supp. 9). The Office of Nuclear ReactorqzRegulation (NRR) issues the Safety Evaluation Report (NUREG-0847) andsupplements (SSERs) as its principal licensing basis documents for Watts Bar.Section 1 of the latest SSER (SSER 9) officially documents the issues that NRRconsiders needing resolution before an operating license can be granted.
Enclosure 1 is the list of meeting participants.
Schedular information and other comments were exchanged between TVA and NRRpersonnel, agreed upon, and subsequently used to update the NRR staff's workcontrol system, Workload Information and Scheduling Program (WISP,Enclosure 2). Updated schedular information regarding the CAPs and SPs isdocumented in Enclosure 3.
TVA participants described the status of TVA's top 10 actions. These areflagged by appropriate indicators in Enclosure 2.
9209080087 920901 L ~'
PDR ADOCK 05000390A PDR p
-2-
TVA provided a handout summarizing the status of actions being undertaken atWatts Bar as a result of Bulletin 92-01, and Information Notices 91-41 and91-79, all regarding Thermo-Lag 330 fire barrier materials. The handout isincluded in this summary as Enclosure 4. By copy of this summary, the PlantSystems Branch (Pat Madden) is provided with a copy of TVA's handout.
Original signed by
Peter S. Tam, Senior Project ManagerProject Directorate 11-4Division of Reactor Projects - I,'IlOffice of Nuclear Reactor Regulation
Enclosures:1. Participant list2. WISP report3. Charts showing CAP and SP4. TVA Handout on Thermo-Lag
milestones330 fire barriers
cc w/enclosures:See next page
OFFICE P011-4/LA P011-4/PM PDll 4/0D
INAME M~aners Pj1Iis/dwfI( FTZ77o'p__DATE 9/0I /92 9/ [ /92 19/ 1 /92
Watts Bar Nuclear Plant
cc:Mr. John B. Waters, ChairmanTennessee Valley AuthorityET 12A400 West Summit Hill DriveKnoxville, Tennessee 37902
Mr. 0. E. Nunn, Vice President38 Lookout Place1101 Market StreetChattanooga, Tennessee 37402-2801
Mr. W. J. Museler, Vice PresidentWatts Bar Nuclear PlantTennessee Valley AuthorityP.O. Box 2000Spring City, Tennessee 37381
Mr. M. J. Burzynski, ManagerNuclear Licensing and Regulatory AffairsTennessee Valley Authority5B Lookout PlaceChattanooga, Tennessee 37402-2801
Mr. G. L. Pannell, Site Licensing ManagerWatts Bar Nuclear PlantTennessee Valley Authority38 Lookout PlaceSpring City, Tennessee 37381
The Honorable Robert AikmanCounty JudgeRhea County CourthouseDayton, Tennessee 37321
The Honorable Johnny PowellCounty JudgeMeigs County CourthouseRoute 2Decatur, Tennessee 37322
Regional AdministratorU.S.N.R.C. Region II101 Marietta Street, N.W.Suite 2900Atlanta, Georgia 30323
Senior Resident InspectorWatts Bar Nuclear PlantU. S.N. R.C.Route 2, Box 700Spring City, Tennessee 37381
Dr. Mark 0. Medford, Vice PresidentNuclear Assurance, Licensing & Fuels3B Lookout Place1101 Market StreetChattanooga, Tennessee 37402-2801
TVA RepresentativeTennessee Valley Authority11921 Rockville PikeSuite 402Rockville, Maryland 20852
Mr. Michael H. Mobley, DirectorDivision of Radiological Health3rd Floor, L and C Annex401 Church StreetNashville, Tennessee 37243-1532
General CounselTennessee Valley AuthorityET 11H400 West Summit Hill DriveKnoxville, Tennessee 37902
ENCLOSURE 1
LIST OF PARTICIPANTS
ROUTINE LICENSING STATUS MEETING
August 26. 1992
Affiliation
Becky MaysVic NersesPaul PacePeter TamJohn VoreesGlenn Walton (part-time)
TVA Watts Bar Site LicensingNRC/NRR/Project Directorate 11-4TVA Watts Bar Site LicensingNRC/NRR/Project Directorate 11-4TVA Watts Bar Site LicensingNRC Senior Resident Inspector
Name
Poset Report Date 08/31/92 Condensed Project Manager ReportLicensi'ng
MPA Age Rev AppI RAI RAI A ,tin License.Taskifl Numn (Mo~n) Mth Pri Actyp Title Date issued R~e. nonsmesI!i onet---............................................................ ........................
...................................*..................... Active Actions................................................ ....
65031 S 2 R LITST.RI-CRRCIEATINPORM (05/22/89) (08/16/90) (11/07/90C) (12/31/92T ) (10/31/92T ) Submilttal to moidifysoey 9/2 (TOp )
&03591
153595
1*3597
M63632
M63647
163648
163649
Wi3656
U63657
M66624
MI 1917
'..TTS BAA 1 - SPECIAL PROGRAM: EQUIPM~ENT(IJALIFICATICN~ OPEN ISSUE 4
VATTS BAA I - SPECIAL PROG;RAM: NIOERATEENERGY LINE BREAK FLOOING (SECTION3.6.1)
`%RlS BAA I - OITA INAENT I SOLATION1REVIEW
"OTTS BAR I - ILB CUJTS IDEOCTAI NMENT(SECT 3.11.3.3)-
"MTT1S BAA I HEALTH PHYSICS PROGRAM(SECT 12.6)"
VATTS BAA I CORRECTIlVE ACTION1 PROG3RAM:FIRE PROTECTION., OPEN ISSUE 12, OOF.ISSUE 38, LIC. CND, 20
lWAflS BAR I - POER SYSTEM CONCERNS,
l'AflS BAR I -EMIERGENCY PLANNING LIC.CON. 27
"WlTFS BAR I PHYSICALSECIRITY PLAN(SECT 13.6)'
'MTTS BAR 1 IMPLEME1(ATICyE OF THESTATION BLAOCI)CT RULE, 1OCFRSO.63-
"YATrS BAA I - CORIRECTIVE ACT ICi PROGRAM(CAP) FORI CABLE ISSUES'
'WkTTS BAR I COR.RECTIVE ACTICI PROGRAM(CAP) FORI QA RECORDS"
*MflS BAR I - CORECTIVE ACTION PROGRAM(CAP) FOR WAELDING ISSUES-
1AATTS BAR I - BULLETIN 86-11PRESSURIZER SURGELINE THERMALSTRATIFICATION'
'WhTTS BAR I -THIMBLE THINNING IN PIARS(BULLETIN 68809)-
"MATTS BAR I- INDIVIDUAL PLANTEVALUATIONS (CL 88 20)"
"VRTT BAR I1 ACCEPTABLE ISTPROGRA1.G(GL 89 04)"
"MATTS BAR I -RESPONSE TO NRCB 90-01LOSS OF FILL OIL IN ROSEMNUINTTRANSMI TIER'
WA~TTS BAR I -TECHINICAL SPECIFICATIONREV I I'w
WMllS BAR I INSElVICE INSPECTION(LICENSE COM)I1 ION 4)
(05/01/92) (09/30/92T) (03/31/93T ) (03/31/93T RAMI response by 9/92.
(/.-.)(06/30/92C) (12/31/93T ) (05/31/93T )6/30/92 submnittal under review.
(03/15/69)
(06/04/90)
(10/19/90)
(0S/12/89C)
(11/30/92T)
(01/03/91IC)
(06/15/92C)
(04/30/91)
(03/22/89)
(10/20/66)
(05/04/90)
(06/15/90)
(02/05/92)
(02/06/85)
(07/24/90)
(04/22/92)
(05/22/69)
(../- /..)
(06/17/92C)
(11/21/9 IC)
(05/22/69) (04/10/91) (05/15/92C)
(05/22/89) (./ / )(07/31/90C)
(01/31/92)
(.4..,--)
( / I- )
( / / )
( / I)
(09/30/92T)
(12/29/89)( / )C / /
(03/31/93T ) (06/30/93T ) 1/93 tentative date for Kadrick site visit.
(12/30/92T )(.-/
(06/30/93T )(--/
(05/31/93T )(08/30/93T
(08/31/92T
(06/30/93T
(09/30/93T)
(12/31/92T
(12/30/92T)
(03/31/93T)
(10/30/92T-)
(10/31/92T)
(12/31/93T
(06/30/93T)
(09/30/93T)
(12/31/92T
(I I/ 30/92T
(12/31/92T
I 12/31/93T
T VA: submittal by 11/92.
)PSAR to be updated by Amend. 74 (?) per Horning.
)6/15 submittal under review. MoIre submnittals byBs To
)Draft PSAA pages received. Expect to close several Issues.
)TVA submnittal app. 12/92.
)SSER 10 will eliminate PLC 38. Review of 6/17 ltr. ongoingý
)Submnittal by 8/92 using coping approach.
)NRR action conmplete in SSER 9. Will moinitor impi. (Top 4)
(09/30/93T ) NRA action complete lin SSER 9. (Top 8)
(09/30/92T ) Closeout itrs. on CAP and Welding Project by 9/92.
/-/ ) Submnittal on Item 2.a under review by H. Shaw, aipp. 8/92.
( //
( / /
C / /
( / /
(06/30/93T
(09/30/931 1C
)No need for submnittal until after plant start.£
)IPE submittal 9/92; IPEEE has separate TAC number.
Per GI 89 04. Relief requests by 7/93.
Supplemental bulletin being prepared, date uncertain,
Detailed review schedule will be developed in 9/92.
Submnitlal by 7/93.
A022
(06/20/91) (06/18/92C)
MI1923
M72106
W42181
W42693
W44 88
W44801
W46631
W6(74 2
M79HM 1
X811
Palo 2 Report Date 08/31/92 CnesdPoethngrRpr
Yeah IDMIA AgeNam (lwbn) Pri Actyp Title
W6972 ( 321 TS 2 RN VATrS BAR UN IT I QU(IAL ITY ASSURANCE
W6974 ( 161 TS 2 RN 'nArrS BAR UNIT I SPECIAL PROG3RAMwMECHANICAL EQUJIPMwENT QUJALIF ICATION1
IM132 ( 831 TS 2 RN VATTS BAR I - 1TMI I I F 2 ON INADEQUATECORIE COLING INSTRikkiTifICN, L IC.OON. 3
1117222 1251 TS 2 RN VIRTTS BAR UNIT I - SEVERE ACIDENTMdITIGATION DESIGN ALTERNATIVES (SND)A)IN IME FES
1147543 (91) TS 2 RN WATTS BAR I - PROCEDURE TO ESTIMATE COREDAMAGE, (SECTION 9.3.2)
M77553 10) TS 2 RN WATTS BAR I - OPFSITE DOSE CALCULATIONMANUAL (WCNC)
107560 1 951 TS 3 RN WATTS BAR I -HEAVY LOADS (LICENSECXIDITION 39)
OU7569 ( 891 TS 2 BIN WATTS BAR I - STEAM! GENERATOR TUBERUPTURE ANALYSIS PER VCAP - 11698
107861 ( 261 TS 2 RN WsTTS BAR I - PROPOSED LICENSECOITIONS 28 AND 29
W07896 A021 ( 261 TS 2 LL WATTS BAR I PRESSURIZED THERMAL SHOCK,10 CFR 50.61
M79692 ( 191 TS 2 RN WATTS BAR I -P IPE BREAK SPECTRA USED ASRESULT OF LLB APPROVAL
109717 1191 FM. 2 RN WARTTS BAR I -SEISMIC DESIGN CONERNSORIGINATING FROM PSAR AMEND 64 OPENISSUE 19
M79718 1161 TS 2 RN WATTS BAR I - MECHAN ICAL SYSTEMwSCONCERNS ORIGINATING FROMl FSAR AMEND.64, OPEN ISSUE 20
M79992 1 171 TS 2 RN WATTS BAR I SAFETY AND RELIEF VALVETESTING3 (MInt I.D.I)
b=0143 1 161 TS 2 RN WARTTS BAR 1 . SAR PAMEN[IENT NO. 65REVIEW
160152 1221 TS 3 RN WATTS BAR I -CONTAINMwENT EFFECTS DUE TOREMOVAL OF BORON INJECTION TANK(
161063 161 TS 2 RN WATTS BAR I - USE OF EAGLE 21 PROCESSPROTECT ION SYSTEM
161887 1 01 TS 2 RN WATTS BAR UNIT I - USE OF VANTAGE - SHFUEL DESIGN
1.1959 I101 TS 2 LL WATTS BAR I ASME COD)E CASE N-491
W.2032 ]I)1 TS 2 RN W&T`TS BAR I FIFTH DIESEL GENERATORNON- ELECTRICAL ISSUES
M862065 I 123 TS 2 R0 WATTS BAR I -THIRD ANNUAL REPOR1T ONEMbPLOYEE CONCERN SPEC- IAL PROGRAM
P.62367 I101 TS 2 RA WATTS BAR 1 SIIALLOWV UNDER ANCHORS
M.82644 I71 TS 2 RN WATTS BAR I FSAR ANTINI)vIENT 69.
Apri RAIDoae Issued
(G4/30/91) (04/09/92)
(09/19/85) (08/16/90)
RAIRestouae
(01/24/92C)
(12/0/92
(12/30/92)
(04/30/94)
Condensed Project Manager Report
Licensee
(12/31/92T
(09/30/92T
LicensingAcIt ion
I 2/30/92T
(12/31/92T
(04/30/94T
(07/30/90) (01/29/91) (07/31/92L) (04/30/93) (12/31/92T ) -I-- ) Awiting TVA response to 1/2"/91. at fit* by Jas
(01/31/85)
(09/24/84)
(03/31/85)
(06/26/90)
(06/26/90)
(01/29/91)
(01/31/93T)
(12/31/92T)
(07/27/92C)
(07/13/92C)
(09/20/91C)
(01/04/91) (08/22/91) (04/06/92C)
(06/30/93)
(09/30/92)
(12/31/92)
(09/30/92)
(10/31/92)
(08/31/92)
(12/31/92)
(06/30/93T
(1I2/30/92T
(03/31/93T
(12/31/92T
(09/30/92T
010/31/92T
(09/15/02T
(12/31 /92T
) (--/../--
) (--/. /-.
) (--/--/--
) (09/30/93T
) (../.-/-.
I (--/- /
) (-./../.
)SSER S. TVA submittal by 1/93.
) l muntowic: is reviewer. Submittal by.8/92.
)TVA submittal by 1/93.
)See SSER S. 15.6.3. TVA submittal by 4/ t P
)Expect to delete PLC 28 sad 29 In SSER 10.
)7/13/92 letter under review, target late 1992.
)Under review by Fair and DAugfelo. SE by 8/92.
)Outstanding Issue 19 e and 8 to be resolved doni
(04/18/91) (01/04/91) (08/04/92C) (01/31/93) (01/31/93T ) (/ -. ) 8/4/92 letter on FW check valve elm under revel
(03/21/91)
(04/10/91)
(10/18/90)
(02/26/92)
(08/24/92)
(10/23/91)
(09/24/91)
(08/27/91)
(10/16/91)
(01 /2 1/92)
(10/10/91)
(07/11/9 1)
(.-/.-/- -)
(-./ ./ )
(.-/ ./ )
( / -I *)
( / / .)
(07/14/92)
(07/I11/91C)
(09/13/91C)
(01/21/92C)
(12/31/92)
(09/30/92)
( 9/.7&92)
.. /. )(09/30/92)
(/./ )(05/31/93)
//.)(05/31/92)
(04/30/92C) (09/30/92)
(09/30/92T) (10/31/92)
(12/31/92T ) (12/31/92T
(09/30/92T )
(tOI/X792Tr)(-//
(12/31/92T )(.//-
(12/31/92T )(./-
(10/30/92T ) .I-/
(05/31/93T ) *
(08/31/92T)C//
(10/31/92T)(//
(10/31/92T N~
Response to 10/10/91 RAI by 10/92.
SSER 10 has See. 4.2 review. Only Chap. 12 realm
Started by TVA 5/2/84 letter. Amened. 69 Info, us
More info.by 10/92. No site review planned. (Top
Under review.0
Per McLellan, SE by 9/92, if not sooner.
SSER 10. Address tornado damage to air intake by
T. Ross has lead on this joint TVA submnittal.
Awaiting revised information per 8/25 telecon.
A) Despite 15 page RAI, staff sees no fatal flaw sv'
M8 7 U/2/2 i 103/2 103/2 (// )Slni earn y89.I61 TS 2 I.L WATIS BAR 1 ALTERNATIVE TO AMF III,S(IIISEC(1 ION NC/M) PARA7 153
Caseets
)Response to SSER 5 by Amndmet 72. app. 10/92.
) E ubmittal by 9/92, as part of response to ELQ
)SSERIO accepts 1/24/92 submittal. Need ImpI. let
MR2878 (02/25/92) ( - / / I ( / / 1 (10/30/92) (10/30/92-r ) ( / / ) Sutwnit revision bv. 8/92.
Page
Task ID
3Report Date 08/31/92
WPA Age RevNtm (Man) hith Pri Actyp Title
163202 1 41
163261 ( 41
133222 ( 31
W3352S 1120 111
163693 B118 8 1
163637 (21
163946 X201 (01
M64234 1241
164249 11I
R00514 1391
2 RO iATTS BAR 1 [DOCUMENTATION4 OF STAPP
VATTS BAR 1 TVA NUCLEAR POKERCROANIZATIGI REVISION 3
VIATTS BAR UNIT I - PSAR PAMENDMNT 70
V~rlS BAR I -GENERIC LETTER 92-01REACTOR VESSEL STRUCIIJRALINTEGRITY.
%RTTS ARM 1 - IPERE FOR EX(TERNAL EVENTS(GL 86.20) SUPPLE- hfEfl 4
VIRTTS 3MR I-APPLICATION OFLEAK- BEPGIE -BREAK 70 PRESSUR IZER SURGELINE.
`%RTS BAR I THEBRMO-LAG (BULLETIN92-01)
ViflS BAR I -S SARMENDMENT 721.
WilTS BAR I CONiTROL ROD DRIVEMWECHANISM SEISMIC (QIALlFlC- ATION.
"V1TS 3MR UNIT 1: CORRECTIVE ACTIONPROGRAM JCAP) PLAN FOR SEISMICANALYSIS AND CIVIL CALC. PROGRAMI
Condensed Project Manager ReportLicealg
Appi RAI RAI Act is.'Date Iogged R.e. Be r C.u~ee
(04/30.1)
(04/17/92)
(05/06/92)
(07/07/92)
(12/20/9 1)
(06/22/92)
(00/06/90)
(07/30/92)
(05/22/89) (01AN191)
) (12/30/92T
) (09/30/92T
) (12/30/92T)
) (12/31/93T
) (12/31/95T)
) (06/30/93T
Licrens ee
(12/31/93T
(01/3 1/93T
Cmttneflte
NR1 staff activities only. SO IVA IsaOvoivinSt.
Under review by Mary-Ans Dismouts, target 6/15/92.
Under review.
7/7/92 submaittal uinder review.
Awiting 1994 subimnttal.
S. Shang to begin review 11/92. O with TVA?
Bulleti Is I for Iafo. only for CP holders.
Under review by 8 NRA branches.
Am Aiting inier. in Amed. 7270
7/27/92 letter an Civil Colc. Program under review.
0
) (10/31/92T
) (011/31/93T
(07/27/9W) (32/21/92T
" i.,
WATTS BAR UNIT 1: MAJOR MILESTONES TO LOW POWER (LP) LICENSE
(Not to scale)I I
Plant Pre-startActivities
Safety Evaluation(Open Issues, Confirma-tory Issues, Bulletins,Generic Letters,CAPs, SPs etc.)
FSAR Review
Tech. Spec. Review(TAC M76742)
Environmental Review(TAC M77222)
Special Activites:CAP and SIPImplementation
Routine InspectionsPer Manual Chap. 2513
License Issuance
SSER 6
Amend. 65A
- I -
Amend. 66A
;,091 5/20/9
- I
- q
CAT
3/91 Coueof Vertical Slice
C
Pre-Op.SeurtyCold Hot Tess
Impose Hydro functional CILRIComplet Load Fuel
M3 5% Power Operaio2A93 9/93 11/93 129 Commences
ACRSSubcommittee SSER 13SSER 7 SSER 8 SSER 9 SSER 10 SSER 11 SSER 12 Meetting iQWg
9/91 /92 692 1(92 l CommitteeReview & Letter
Amend. Amend. Amend. Amend. Amend. Amend. Amend. Amend.67 68 69 70 71 72 73 74 1/94
5 All Amend. Review,5/1 /9 1 11/5/91 1/21/92 5/6/92 8/5/92TVCetfs
8/92Issud Fial raft"Froen"TS Issued asA Appendix A toTS CerifiedLicense
Env. Prot. Plan Issued asAppendix B to License
Period Ends Reot 9M3t)0morandum
A Issuance ofLP License
I] = NRC Milestones A= IVA Milestones Q = Meetings 4. = Date not defined
Dated? W92
Page 1
1/94
0 = Meebngs ,L = Date not definedn = NRC Milestones Zý= TVA Milestones
WATTS BAR UNIT 1 CAPS(See SSER 9 for offical listing of accomplished milestones)
ACTMITY 3-901j 4-90 1 1-91 12-91 1 -9 4-91 1 1-92 1 2-92 -1 3-92 14-92 11-93 1 2-933- 9 3 4 - 9*1*
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EVARMlAIMIOaRANJ
LEGEND A-TVAMutSIoNE E] =NR2LICENiSING MILESTONE (7) mSPECIIONMILISTOtdE Q) -tEAM INSPECIIOI4 e HLAIIOUARIERS INSPECTION (D =RESIDENT INSPECTOR INSPECTION (R EGO AlRSEO INSPECTION e VERTICAL SLICE REVIEWNOTE IF N n dale is shownlot ao5miste, Is locabon alone does n1 o[ * i sdlceuhdia Imomlno
A A AL 111111
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WATTS BAR UNIT 1 CAPS(See SSER 9 for offical listing of accomplished milestones)
ACTIVITY I 3-90 1 4-90 1-91 2-91 13-91 1 4-91 1 1-92 2-92 13-92 1 -9 1-93 12-93 1 3-9 1-9
2F. EQUIPMENT SEISMICWMLIFICATION - ALSOOIETSMANING ISSUE 44s)(TAC 11919)
It. FU PROTETO(TAO 6311,11),
DL HANGER A ANALTUM UPDATEPROGAM NdD
MAUG1 VRAR 14,21 AP ,R 5",)A 111111 A
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WATTS BAR NUCLEAR PLANT (WBN) - ELECTRICAL ENGINEERING EVALUATION OF IEBULLETIN 92-01
References: 1. Nuclear Regulatory Commission (NRC) Information Notice91-47: Failure of Thermo-Lag Fire Barrier Material to PassFire Endurance Test
2. NRC Information Notice 91-79: Deficiencies in the Proceduresfor Installing Thermo-Lag Fire Barrier Material datedDecember 6, 1991
References 1 and 2 provided information (1) about the failure of the fireendurance test performed by Gulf States Utility Company of Thermo-Lag 330systems and (2) on the deficiencies in installation procedures for Thermo-Lagbarrier material manufactured by Thermal Science, Incorporation (TSI). NRC,in Reference 2, indicated that "The vendor (TSI) stated that it had notincluded several essential application steps and precautions in itsinstallation procedures manual because the information was presented duringthe TSI certification training for installers." Reference 2 also states "thatstress skin must be placed over panel joints to ensure a continuous outerlayer of stress skin for three-hour barriers and a recent procedure, TSITechnical Note 20684-AL, of October 1989, provides updated installationprocedures . . . and requires that each butt joint be covered by an additionallayer of stress-skin and trowel-grade material." These statements werediscussed by telephone between TSI and TVA-WBN on December 30, 1991. Noadditional verbal or written installation instructions were provided by TSIfor their three-hour fire barrier installed on steel cable trays.Accordingly, TSI Technical Note 20684, Installation Procedures Manual (forsteel cable trays), Revision V, is still the installation instruction forsteel raceways.
The three-hour rated TSI fire barrier material is not currently installed onaluminum cable trays at WBN. If aluminum trays require protection in thefuture, it will be installed in accordance with the latest procedure.
Based on TVA's review and evaluation, the installation problems described inNRC Information Notices 91-47 and 91-79 do not exist at WBN.
Presently, WBN has installed one-hour fire barrier material manufactured byMinnesota Mill and Mine (3M) and three-hour fire barrier material manufacturedby TSI. The existing TSI three-hour material was installed (1) on conduitsonly and (2) in accordance with TSI installation procedures and (3) byinstallers certified by TSI. Our review of current installation proceduresfor TSI fire barrier material identified no discrepancies between TSI and TVAprocedural requirements. The three-hour wrap installed is on the below listedconduits.
Conduit Number Size
lPM6420ODlPM6399DlPM6398RDlPM63 88FlPM6 38 9FlPM6 39 OF1M4 5561M45 55lPM6385FlPM636 OFlPM6470OD1NM3066D1NM3 064D1NM3062D1NM3 060ODlPM5660DlPM6 365 D
Location/Elevation
Az 198 - 265/770Az 198 - 145/770Az 145/770 - 728Az 198/730 - 740Az 198 - 265/740Az 265 - 275/740XA4/737XA4/737Az 198 - 265/744Az 280/754Az 265/773Az 205/733Az 205 - 220/730Az 220/730 - 754Az 220 - 230/754Az 155 - 265/744Az 240/750
Building
Reactor Building AnnulusReactor Building AnnulusReactor Building AnnulusReactor Building AnnulusReactor Building AnnulusReactor Building AnnulusAuxiliary BuildingAuxiliary BuildingReactor Building AnnulusReactor Building AnnulusReactor Building AnnulusReactor Building AnnulusReactor Building AnnulusReactor Building AnnulusReactor Building AnnulusReactor Building AnnulusReactor Building Annulus
Additionally, one-hour fire barrier material was purchased from TSI forinstallation prior to Unit 1 operation. Certification of training forinstaller will be required prior to incorporating design change notices (DCNs)which add the one-hour rated TSI material. Future installation will be inaccordance with the latest TSI and TVA procedures.
WBN Engineering, in cooperation with TVA Corporate Engineering, Browns Ferry
Nuclear Plant (BFN), Sequoyah Nuclear Plant (SQN), and TSI, is developing a
fire endurance test program based on actual and anticipated plantconfigurations of Thermo Lag 330. Some test articles will be assembled usingcurrent TSI/TVA installation procedures, and others will be assembled usingenhanced construction methods being developed by TVA. The purpose of the testprogram is to demonstrate adequacy of the installed configurations and toqualify enhanced installation methods for future installation at WBN.
Also, results from the WBN fire endurance test will be used to reevaluate theadequacy of the existing TSI installed system.
-2-
5125G
DISTRIBUTrIONDocket FileNRC PORLocal PORS. Varga 14-E-4G. Lainas 14-H-3F. HebdonV. NersesB. Wilson RIIK. Barr RIIG. Walton RIIE. Merschoff RIIP. Madden 8-D-1P. TamM. SandersOGC 15-B-18ACRS (10)WBN Rdg. File