ML20107A988
| ML20107A988 | |
| Person / Time | |
|---|---|
| Site: | Beaver Valley |
| Issue date: | 02/13/1985 |
| From: | Woolever E DUQUESNE LIGHT CO. |
| To: | Eisenhut D Office of Nuclear Reactor Regulation |
| References | |
| 2NRC-5-023, 2NRC-5-23, GL-84-08, GL-84-8, NUDOCS 8502200186 | |
| Download: ML20107A988 (7) | |
Text
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'Af Duquesne L@t 2gggg Nuclear Construction Division Telecopy (412) 787-2629 Robinson Plaza, Building 2, Suite 210 Pittsburgh, PA 15205 February 13. 1985 United States Nuclear Regulatory Commission Washington, DC 20555 ATTENTION:
Mr. Darrell G. Eisenhut, Director Division of Licensing Office of Nuclear Reactor Regulation
SUBJECT:
Beaver Valley Power Station - Unit No. 2 Docket No. 50-412 GNLR 84-08 Appeal Meeting Request and Position Statement on the
' sue of Fire Suppression in the Cable Spreading Room Gentlemen:
This letter is in tasponse to the NRC letter dated January 10, 1985 (G. W. Knighton to E. J. Wooleve r).
In that letter, the NRC staf f amplified on the backfit requiring that a fixed water backup fire suppression system be added to the Beaver Valley Power Station Unit No. 2 cable spreading room.
The previous staf f position was provided in a November 6, 1984, letter from T. M. Novak to E. J. Woolever.
The Duquesne Light Company (DLC) response to the November 6 letter was provided by DLC letter 2NRC-4-195, dated November 20, 1984.
DLC proposes that the first appeal of this issue be scheduled during the week of February 25 to March 1,1985.
The NRR procedure f or management of plant specific backfitting speci-fies that the appeal meeti tg agenda be developed from the staf f and licensee positions be distributed p ior to any meeting. An outline of DLC's position on this issue is attached to facilitate the Project Manager's development of such.
DUQUESNE LIGHT COMPANY By D E.W. Wodlever Vice President RW/wjs Attachment ec:
Mr. S. Chesnut, Technical Assistant (w/ attachment)
Mr. M. Clausen, Technical Assistant Mr. H. Denton, Director NRR Mr. T. Novak, /.scistant Director Mr. B. K. Singh, Project Manager Mr. V. Stello, DEDROGER Mr. J. Tourtellotte, Chairman RRTF Mr. G. Walton, NRC Resident Inspector g
/
9502200186 850213 I
PDR ADOCK 05000412 F
ISSUE:
Fire Suppression in the Cable Spreading Room BACK51T ISSUE MO.?
17 05/30/84 01/10/85 02/13/85 02/13/85 Backtic NRC Rqunts Appe al Position Meeting First Minutes &
Second Meeting Second Minutes &
Formal Identified Letter Filed Statement Agenda A ppeal Decision A ppr il Agenda Appeal Decision A ppeal Submitted Issued Meeting Issued Requested Issued Meeting Issued Req ues t to rir, NRR NRC POSITION DLC POSITION COMMEsTS BTP CMEB 9.5-1 is guidance rather than BTP CMER 9.5-1 does PROPOSED g,
p.,,,s,, e,,,,,,og, REQUIREMENTS regulation, address pas suppression N asolicatie standard testes plan fuusts-eno0) section 9.5.I. peregroom si. teattttes e aceetatie tent of safety for ften protecttaa that sett systems, however, it aset the rentremets of 450.ac. esc 3 and S.
In order es eset these Manual hose stations provide backup water sup-does not state that notremets. ene fallantag secctfic critaria han to to sett pression capability in the BVPS-2 cable spreading fixed water b,sckuo is areacn fuhatcal postetse (efs) oEs g.5-1 as et mistes to t'*
- room, required.
design preetstens given to tuplauset the fire protecttaa prograr.
The BTp 045 9.5-1 at peregresh C.7.c langs 9.8.1 al) states:
- C.
Catte Spreading seem the artemry fire sesoretites le the ce61e spreedtog ress samm1d be se automette unter sysism sect as closed 4eed sortakteas.
essa.need deless syntes. er esse directionat unter system...
inen gas systems are testalled. dretas semeld have edgeste seats er tan gas eettagetshte, syssess steeld be sised to causessete for losses thrwegh the dretes.*
Te meet the STp OE0 9.S.I guideltaos, e fined unter separessies systes should be installed to hectee the emeent get seg Iresstem system.
IlsC Cammets the purgsee of fire protecttee to a nuclear plant is to meetutte the ad== enues of ft=s se stmeeres. systems, med causements sesertaat The guidance of Regulatory cuide 1.75, Rev. 2 sys"E'*Th e $*sE**NEI"sved rN*p'el177, Mt.
and IEEE 384-1974 have been used to establish e
r senerette tetum tee tie safety tratas. The em to ceumma teat *'**
cable separation in the BV-2 cable spreading a concentretten of vertical emie tre,s sad ts locatra at en, fortaset room. In the unlikely event of extensive fire nstr5N* EedYtIs.N :e[EU'MIi damage to the cable,desspreading room, the Alternate e
u located euer from tee vertical catie trer om. The etc pr Shutdown Panel prova full safe shut *own as a mest of ene greu.the case greedsUrs,ss is e gen,e.essed fireutdeisees,,, ce sys, tem.
suspressten system for re s ferry fire to
.eiete,,
capability.
by the IIRC wttt censultattee by the taesstry and approved by the ImC's Regulatory Beestreusets Gevtsu Centttee (2 C) shtch spectftad that prtnery fire sesoressten snauld me an automatic untee system er test tf geseems systeme were the primary superesstem that taey most te bected as w"t se tastelled enter sprey system sad hose stattsas ead partette eettaguishers temodtately entside of the reen.*
Appendix A to BTP ACSB 9.5-1 was deleted by BTP CNEB 9.5-1, Rev. 2 (July 3
6 arcsa s.s.t. deced ase se ri. Igre. as mee.ed n, e C gg81). The revision states that the guidance
- The pressry fore neueressten to the cette servedtag een shenis he en estametic water system seen es c,losed-need sortatises. co a.
o.f APP'ndia A had been heed delege, er esse directieaal sere messies..
- a ncorporated into CMEB
'*5~I*
- aiternately, gas s,ystems (noten er to ) mer te esed for artner, suseressten of the are tuned se by el tastatied meter serer system and hose stattees sad poetetle eetteguishers temodtetely outside the roam aad if the access reestr*= sets stated eteve ere set.*
O
PAGE 2 OF 6 ISSUE:
Fir
17 NRC POSITION DLC POSITIrift COMPENTS PROPOSED gg c,,og REQUIREMENT 5 meme of the rosslettee pertetetse to fire eretsettee fee secteer same plants spectfy the suppresstes moetens to to used.
sac eessemop sesorenses.s.or, the e,gelettees reeerence see deaments that.
DLC has provided an evaluation comparing BVPS-2 free, suu
- tee
- se i se ermeet rees. les.es fasemees 3 steene thet teste te tL acceptance criteria of BTP CPEB 9.5-1 e as Etegnse is centstand to tae a tamed assandts a to ofp AFC3s 9.5-4.
pists (SECT es tas/sttY s's censiderettaa of a fin preemettee role fee fete,,
required by 10CFR50.34(g).
sert of the centssee i ite), tem caminates esmed tant emets e rete is e candottee reestete,e Itasse issued.ftec Jeseary I.197H seeste contate to piece, som itcomes cemettence ete tan cemstasets ener by a espatcast and agreed to by the staff. Tue ceumtssten else agreed est destettens few our geteelleet steeld he seselfically thtfted and Jusstfied by the esplicent and met sect dettations steeld to spectftcetty evelected by the staff to the los. le the tes1.ast case, joettftcettee for the lett of a ester avstem to the ce61e spreesteg rem tes met base provided by the oppt. cent.
at commset Altte gt the 9Tp 9.91 peregresh ested to tne sowouter s.19se. ERC tetter empressed a preference for meter. ethee parts of the same eTP address dP*tge consteerettees for get suppressten sytems used to cette spreedteg *ema, unc esseemse ime cac,elmunes for tne caele spreedtee reen de set praattit tee ese of DLC's confidence in the combination of automatic More than 20 operating e
2 Suppression and manual hose plants and several E'e e"e). Nae"pr's "y'Nesem'ssY"ed",
fire detection CD e
application of water is consistent with NUREC-NTOL's use gas suppres-E'""*"
0675 supplement 23 (Diablo Canyon SER) dated June sion systems without at ient to eserette, piets elen, esta se. oral efet's ese ses intems e tme 1984. The NRC staff evaluation of an exemption fixed water backup.
primary etm neseressten intems to cale spreedt*Ie to. at mese c.ne gets request for a non-rsted steel hatch etates:
rooms. stece to new met been westred to etate nemettes to tst ciese test netw sesenssim to at centred by nesttee agelett es.
"Neve rt hele a s the cable spreading room is Esc messomme e
'98IPPed with an automatic fire detection and estitto,eserettoo pleets essetmeted and uccesed artw to Joseery 1979 tne cart.on dioxide fire suppression system. There-to same cefterstten of tee cette somedine reme se sette of a sect e a fteed sneer suominte system uns domme acesetafe fw a arteer of fare there is reasonable assucance that if a due to the pra.cos.t spects.soon, adverse Geeses of feed ortset eerstiaet settene.or w etmee electrices e=*smere. espucrise e
nes
- s. e.e..
of ftre etteremot
- a to centes. esenwe. aest of one se pipes fire should occur at would be detected early c
e Itcensed eftw Jammery 1.1979 er to be licensed hose provided a ester and estinguished manually by the f a+ re bra.sade
+
sussenstes systes, ettaw peteery w nectes, to tne cafe servedtes %s.
or automatically by the carbon dioxide system Ne$,$Ne Ne7.$"e',
before serious damage occurred."
M Just erecatten tyree 18 teoreved dietstessi seeerettee Catashe Armored cette slette Campe 1 & 2 tiectrical oestamet preteet
%tre1e&
Armored cette
$horehen t)ettrtCel egetWeet present n
E
PACE 3 0F 4 ISSUE:
F i r's Suppr+sgion in the Cable Spreadine Room BACKFIT ISSUE 100.: L-84-10 DLC BACKFIT 100.+
17 i
NRC POSITION DLC POSITION COMMENTS PROF 0 SED REQUIREMENTS EM Ytr Saf teentiftes se acceptatie seems for meettag the reestressets which sp4 rite the SeP. Itesseer.10 cts 50.34(a states. "The $sP is not esostitute for the regetattees, one casolia)nce is set a certement.*
1AC Reseense We agree, however.10 CFR 50.34(g) reestros asoltesets to teentifw As previously noted e DLC diffmaces free the ser ucwtuce cetteria sad eveisate mee tme preemd alternettoes to tne ser cetteria orntes se accestaate method provided the required for caselytog eith the caissten's regulattes (f.e.e 10 CFR 90.ae):
ggC7,$g 34(g) e evaluation.
- (g) Conferesace sten the standsed es,tes piae (ser,). (1)(t) n olicatteas fw itet ester esoted auctew eene pleet eseretta licenses secteted after Any If, test shall tacteen an evalmetten of the factttty asetast the Standard testee Ptae (ser) to effect en ney 17. 1982 er the $sp revtsten to effect ses esaths prior to the doctet este of the aselicatten, ehtchever $s later.
(tt) asoltcattees for Itcht ester coelos eateer some olent cesstreetta=
seretts. eenefactories Itceases. end prettetaery w ffael deltfe amore*
vals for steneerd plaats escheted after ney IF.1982 shell mese se evaleottee of the factitty agatest the $sP te effect ce ney 17. Iset er tne ser re,tstem to effat sta mentes prior to the eschet este of the asolicatten, ehtchever is later.
(t) The evaluetten enestred by tate section shall teciees as tenettft*
cetten and essertettee of all ettforences se destge festeres eaetyttest tecneteses. and procedersi aseneros presoned fw e futitty and enese cwressenstes festeres, tecasteens. aae museeres st ee to ten sep SCcept*
ance critects. ubere sect a difference entsts. the paleott e snell discuss hem the alternettw pagemees prestees en Mceptable eethed of cemetytag eith tem roles w revelattees of Commissten, er arttes thereof, emot sneerlie the emeseeadtag ser acewtance emerta.
(3) The ser ses essmed te estat.tsh cetterta test the est staff get aes to use to misettae meethw as eseitems/tteesee meets ene Cassinstem's reestattes. tne soo ts wt a seestitute for the regeletteas, see coepitance to met a reestresset. aesttesets shall easattfy ettfmaces free tae see accesence riterta one evetente has the oreesoed atternette to the $5p cetteria erestas se acceptable estand of cesstytag eith the Cemetssten's regenettes.*
r FACE 4 OF 6 ISStaa t Fire Suppru sion in th? Crbli Sptw ding Room BACKFIT ISSUE NO.':
17 NRC POSITION DLC POSITION COMENTS PROPOSED REQUIREMENTS It asseers that the hec staff any letand te eteette the states of SAP 9.91 and 879 9.bl. thtch It tacersoretes by refersace. to the level of a regstrement. 10 CFR 50.34fg) states that campitence ette the let is act a resserement.
IBC teseemse The staff dose set tetoed to elevate the OTP 9.bl to the level of a require.
uset, nousser the CeeMtstes has stated that tDe
- essential elsemats' for acceptstle fire protectten programs are deftnede la part, to Aspeadts A to STP 9.S-Ir 30
- Secause of these f8 Cts the CeEBessten Geereced G. April 23.19e0 a prosesed role conceretas fire protectles. Ttts presaned este end its Aeosadin a how nose de,eiged to estaelism the statene acceetatie fire protecteo roestremsats necessary te resolve tasse centested erses e{g A s previously stated,
concere for aucteer pause plaats eserettag prior to Janseey 1.1979.,
APPendia A to BTP APCSB Otner ffre protectim cettacts test have tese used by the staff daria tes pteat-weetete fire protection erweres reetwa er contatand to 9.5-1 was deleted by BTP A,pendes A to eTP e.s.1 and tee reestament tee Iw*dence contataed te Aspendts A to STP 9.bl. The centiaettee of CMEB 9.5,1.
set ta *= tais pressus rete define tee eswattet elemmes for en ewie fire preescttee progree et secteer sauer pleet. docteted for Constrectlen perett orter to duty for dummastretten of cowltance eith Osmeral tesign testerte.1,19M3 er keendis A to 10 Cfn part 90. stetter acceetante setenace is presteed to STP 9.bl for secteer peuer plaats decheted for Constructten perett after July 1,19M.*
(stimoreado end Ordee CL1-00-71 to the settar of Petetten for faerfency and Genedtet Acties. Iter 13. It00)
I' This rete is schedeled for petitcatten is the Federel Begister sa tiny 29,1980.
15 Cantssaenee teamedy and needrie agreed ette the fire protection safety preetstems of the prosesed Assendis a te10 CFB Port 90. tot disagreed with the tuplementattaa schedule prosesed by the Caestetten. A statausat of Casuressteners seemedy and eradrie seperste eteus to this regere is attacted.
PAGE $ OF 6 ISSUE:
Fire Suppression in the Cabli Spreading Room BACKFIT ISSUE LOO.y L-84-lO DI.C BACKFIT NO.6 17 NRC POSITION DLC POSITION COME NTS DLC is committed to a spurious signals analysis The CV-2 f ire prot ect ion HOW PROPOSED gg, u,, et,,,,,,,,, e.,g,,,,,,,, e 9,,,, s.,,,,
which will identify the potential for safety plan includes: adminis-REQUIREMENT
)It.," ml*7 7 Im' esL ""*S"N7sII S,*t 'E*,' "cNeerai, degradation due to short circuits as a result of t rative control of CD2 WOULD analysgs vg11 be recttfs.s identified by this lo.c kout, posting of a fire. Potential probl.em et" t.
fec esessie. (in co
=setw""m to the enen er preI systess are setject ee tuostmeat mea IMPROVE s
ese sws es, me feetore of sernaaet en ed.
f are watch responsible SA FETT reacttute ene a.temette pwiseas of the ftem een we to tne to systs,tf consterate test tI preences for lockout and restora-betag teostree for a coasteeretie ttee. (2 eitY m"
The spring loaded door design ensures adequate tion of (D2e and control urt me tause t a
f esers are set presorty istches. smisere tuttene due to the rose ese to tne sealing.
room indicat fort of lock-CD} etscherge to the roen ser esse the eners and etssteete the suosiy of to.ce, one connestina preemets es,se the Co. conce=tret (e if fire domews 4:1 to cie out of CD
- 2 he tems6weee to etmee ams.
The fire dampers f all shut on completion of CO2 in ene met tee ce system esos met armetir entsagetsn ene femsec=se of the Ie etw useid di scha rge.
te seented by tne fire orspee estg fin homes.
rse fire Training will be con-leedtog and congestion, se een t?ts test te ne difftcent and uacertata.
n ducted a.n the cable hm are seren wettcan case trays meer tne.twr imt u ten iese te note fire femengettaa sad tne prwucttee of ca steremie smote. m susae aPreading roosa to ensure sad emeested ceaftgerettee of casu tren manie mese annust fim feetig esfficult. Ynerefm. e fined enter eac that fa,re bra,gade mem-emseed to reece tats unewtetetIy eve, hse seseresstaa system snesia ne one mte munesie usewce test bere are gas.1*ar we'th tne f+re otti w sesemsee premet n tf tne co este 'sceaaru* to g
aet =*tme.
layout and methods of Ott Cameg 8PProach to fires in varsous areas of the OLC dess set e==nese tee selectiae of Ce to to e weet stat to the erhase-te-eaeta chose. soth meter e% C3 have bip reestrummets *.let amet to room.
consteres to the sesoressten system este. The staff has chosen te intet taste este r=entnumats as itettettaan. unter sesoressten systems new tute own set of deste mentrummats eten cae a;se te latelee es itettettens.
The 3 hr. etructure together with a combustible s
seel-2 men cowwed cette tnys and ses eintrices swetenseer tocated to the fim em te etch the case wenetag vom to imates.
loading of less than 3 hrs.e provided assurance that alj acent areas will not be af ve rs ely
,,e %
affected.
Fire to the case screestas roen may esmoge cahie from tett samty trates etch are aeresity used to sheteaun the reacter and amtetste it to a safe a ste ttemt fire asy genwete terge ommets ef neet Even assuming extensive fire damage to the cable snutesma ceasttian, e
and ec enc 'uNe$)e$eas t7, spreading roan the alternate shutdown panel pro-e s
s ee vides all capa'ility required to safely shut down The.siternate smutdemn cecettitty presteed for the cette.sectedtag roem te BV-2.
e et t=== coeot.ility. inus, ene esentig staff ts cm it e to esse este few taene 4 ss ctees stress one inete meitme piaat treastets wiu A second application of CO2 is available with a The ability to maintain E"ereen. treastents that connet be contreties by tne esentee.. es,e "ur.
tn,e required,i! be utteetg aae metatetag statie het snutde== coastttes. As the fir capacity equal to the first application.
th concentra-t ect necem sne siteraete smetes== cmmiitte tw t*e catu semene on/ time vi us am us Iteitee costitity. et is euettei enet enn es mesentle demonstrated by test.
mereace emot a sale se esetg roam fire ce# te estigetshw eremetly. Yme r
te ucemettst thee actie *seaes sa ae'etatetg a coetate Although a percent cove r age figure is not cur-
- "r*yleatiu, of co,$e le$t eI Yr+7pNNiag' e s7,,I, 7 rently available BV-2 has developed, and is i
e s
ne ce,.
refining as required, design criteria for the Procedurally, the burden Isct[."t c'"yNeM*MsY wo ct tie StEsrete=.
eelection/ placement of cable tray covers as re-of proof is not on DLC OLC tes Mt yet sutetttee taforuette et the estet to etch caele tnys utit quired for separat non. Even part ial coverage of to demonstrate that no c$v**e"'YU Ir *Ny'N's.To nan nN Et eMeNat a U to t e trays, greatly reduces the offectiveness of a possible benefit could m
,uum if tne to system 1s tummete to cwent the fire. Yhmfen, protMtten fimed water system when compared to CO2 r es ult from ins t al ls t ion se ene wet nglee from ties uso discesehete ese of wete eut w ceasiered.
of a fimed water system.
The staff tsiteves that a ftud tubes witw sesoressten system tasteiue u the teriest area of the cette servedtag rees auer from the electricei switchgow A smaller volume of water, applied only to the Rather, the etaff is etit omwe setter protuttee to the switcame thea asavetty esotted veter, g
gear than a much la rge r volume applied throug's proposed requirement.
the fire area.
r PAGE 6 OF 6 ISSUE:
Firs Supprn*lon in the Cable Spre ding Roose BACKFIT ISSUE 100.t L-84-10 DLC BACKFIT NO.:
17 NRC POSITION DLC POSITION COMMENTS J
RELATION OF NEW REQUIRE-Itt, estatten of use asseirements to taistina temalatory posittens The staff posttten is unchsoged frem regolatory posittens selet hees eststed EXISTING stace 19fs. This espltcetten by tne staff to censistent esta the neetteen No specific comuments, however DLC does not e
aes sten,
- ens, Igesemnd. Themfm. Ess ts ee concede that the staf f position is established.
RECUtATORY y
POSITIONS SUCCESTED TIME FOR tv. se tested itse %e.astasatetten IMPLEMENTA-g, TION Olt is unstle to estehlfsn a posttlen stece ne time has toen p osesse.
unc pospense sect'en C.t.e of STP out 9.5-1 emeters guideace en the toplasmatettee of the fire protecti e progren:
- (1) The fire protecttee program (pleas. perseasel. and eentsment)
No comunant
- for besidtage startae new reector fuel ead for adjacent fire areas thet could effect the feet storege aree should be fully operettenet tefore fuel to mceteed et the site. Such adjecent erees include these uhese flames, het gases. and fire-generated teste and correstee preestts aey jeoperdtre safety and screelf.
g 14 ace of the stored fuel.
(2) The fire protectten progen for en eettre reacter unit shoute to fully eserettemet prter to lettlet fuel leedtog to that reacter salt.
(3) On reector sites where there is as esersting reacter med constructten er modificettee of ether units is voser way.
the fire protectlee program shoold preelde for Cs8ttauta9
- esisetten of fire heterds. Addittenal fire terriers. fire
$retecties cepettlity, sad attelstrettee centrSls should be provided as necessary to protect the euerettag uptt ' rem constructten fire hereeds.*
bhere esed cause has hose sheen that certgie modiflCettens could act to tuplemmeted by fuel feedtes. licensteg any proceed se the bests ef cepensatory seesures acceptatie to the staff for the time ported tetmeen fuel feed and the esmoletten of the endtficettes.
O 9