ML17192A684
| ML17192A684 | |
| Person / Time | |
|---|---|
| Site: | Dresden, Quad Cities  |
| Issue date: | 04/25/1980 |
| From: | Ippolito T Office of Nuclear Reactor Regulation |
| To: | Peoples D COMMONWEALTH EDISON CO. |
| References | |
| TASK-06-07.C2, TASK-6-7.C2, TASK-RR GL-80-35, NUDOCS 8005140028 | |
| Download: ML17192A684 (3) | |
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M,.. -n. t.ouis Peeples* - *,.
- Director of tiuclear* tieens fog.
Co1~r~ltfi *Edison *C~~a:ny P~ fl. Hox 767 Chi c.l1Q,o., *.n H nQ1 s '1>0090 *. __.
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- APR I L. 2 5 1980/.
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EFJECr OF: A oc POUER SUPPLY f.AILURE *DU.u:cs P£RFOB.l*WiCE',;...
- . *. *lt has gen~r-aHy ~an* ~ctignh:e4* that tno. loss ~f ~ direct <.<urr.~nt (DC). *
.. P<bfPl" supply could ufsable several ~-ie.rgency eore* coQHng systam eorcponents....
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- *and thereby C{,lU1t1 result. in* a H~1t1ng stngle faiJur~. eonditfoq.. for soroo ~:
- breaks.. '.fbe enclosed l~tter. report ~9S subriiit.ted t9 the NRC st<:iff: tr.1 the,... *.-
. Uenara1* £leetric Clllii))an;' to provide a c.'e.fh11t.hc, :s:ener1*c:~.reference ana lys1s of. the f4ffects o.f DC pu.ror..$upply.fatl~res Qn F.ttS eQi1f-0ro-.nanca calculations. The f~RC staff iS revte;ing the *arl{ll,ysts l1h1e~f ~ates
- the peak c*1addin.fl terj;µc:rature*s asstleiated t11'ta vartous _postulated OC*.f.iO'it.er
- supply f~H9ra: (£CCS eqt~tit availabtlityl.ca_se$ *to th_~* peat* elndding teffifJ(!raturos. -for a *HPCl (s.ztall brea~l faUure am1 *LPCl.1nJeetfon valve. **
(large brea4) fatl_ure ca~esit *s1nee th~ stut,iY ~as based on plant design i~formation whtch rnay have b~cn 1rtc~leto-er*.Qi'Jt*Qf*dat.o *.
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- . ta1nty ext stS: t1tmther t!'te tto.r$~ ECCS: syste~* qVatl~:J:.flity* cortlh'hmtfons : _..
have lleen fdent1Ued fc~*ywr-9pcwatlng St1Rs. J\\ecord1ng..1y_. in o.rdt:?t" that U? may. have an ade<iuatp 1~vt11. Of* assoranc.e ttlat *t:h~ s.vst-el#. com** *.,
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Units c*Z lrnd 3 and Qqad Citie.s Units l and.2. tre rt.>qt:est that you confirm.
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the.ca..nc
.. lusion of. the ref
.. en.m-c.e stu~.* r-egardtug*t.bo_. winirntt:li'l_*-EC.CS equ.ipme*n.: 0.'!
av.aUab.tlH::Y ~jtil a n~ pew(3r suppl,y failure *. Include in your r-cs.pon.se /
- a lht of the EC"tS equ1f>>lli;rnt that ttcrJld* be.,~va1lablc for lar~ and small.
(l) r-ec1.rcvlatfo!l lOQP dhcttarga ~reakso an'd (2} reeirwlat.f on loop suct,io.n br,eals *. Th~ Hsting of aq:uipi~-ont avaHable should t~~e 1r1to ae£;c.unt
{lot only PC pow~r s.upp ly fa1 H.tro., but also* lqss.of ~u1piaent dµe. to water sp1llage *._.
Pleas.~ provfde a.schedule~ for your response within 30 days of the receipt
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NRC FORM 316 (9*76) NRCM 0240
- u.s: GOVERNMENT PRINTING OF.FICE: 1979*269-369
't Mr. D. Louis Peoples Commonwealth.Edison Company cc:
Mr.* D~* R. Stichnoth President Iowa-11 l inois Gas and Electric Company 206 East Second*Avenue Davenport, Iowa 52801 Mr. John W. Rowe Isham, Lincoln & Beale Counselors at Law One First National Plaza, 42nd Floor Chicago~ Illinois 60603 Mr. Nick Kalivianakas Plant Superintendent Quad Cities Nuclear Power Station 22710 - 206th Avenue- - North Cordova. Illinois 61242 U. S. *Nuclear* Regulatory Commiss*fon Resident Inspector's Office Dresden Station RR #1 Morris, Illinois 60450 Moline Public library*
504 - 17th Street Moline, Illinois 61265 Susan N. Sekuler Assistant Attorney General Environmental Control Division 188 W. Randolph Street*
Suite 2315 Chicago, Illinois 60601 Mr~ N. Chrissotimos, Inspector
. US Nuclear Regulatory Corrrnission Box 756 Bettendorf, Iowa 52722 Mr. B. B. Stephenson Plant Superintendent Dresden Nuclear Power Station Rural Route fl.
Morris, Illinois 60450
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