ML17252A191
| ML17252A191 | |
| Person / Time | |
|---|---|
| Site: | Dresden  |
| Issue date: | 05/24/1967 |
| From: | Morris P US Atomic Energy Commission (AEC) |
| To: | Behnke W Commonwealth Edison Co |
| References | |
| Download: ML17252A191 (2) | |
Text
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'W...;...* *....J MAY 2 4 1967
'.floeket 118. SU*l"J7 &:
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c-.,wultb r~dU011- -c*ompany J2 'Wut Acta.a Stl'*et Chtcqo
- 111111;01* 60690 6ttuttcnt: Mr:. u. a. *aehlikc Mau~t to tu :r-rit*tdeat Gentltiartm It ha* beea appnndutel111t.nc moatt. s.iK(J, we ui *the Mvl&o~
C-ittee on bee~ :Safe&uaeda (ACAS) hoe 'e"t.-d,ot" *PPltu*
tioa. fO'r
- c_.trueU. pealt a.t fsU1t)' lt.aue :for tlM Druden lhltt J. uucleu power plat. e.11nntly* *u ¢._imcttoa *et your
'D'ftJdn *.ite. ln lb repo~t. dated Aop*t 16, 196'. ta ACU ideaU.fted aner*1 i!l<<atp. *** that *req,*.:Jirel futtb:c* att.**li** P!d evaluation aai iaiiH.qted it*.cle*.tte to ~wiew.t.fte appttprJ.ate vroan-. lt also if~mC that
- cootl.- to -11ow ~- clevelopMats.
Q.hav.e ~a r.-.tw.t.ng, w. 1'f*ter*detai1. tiut !?CCS ~lea: *cm *ill:iln l'eMtft pl**ta vhka ar* f\\&Bt.1oaal1y W*tlca1 to flJ\\l't Unit* 2 ad l.
~U& ta.e revf.CW w hft* id*tiUed ewenl 41**1P *****that rt11111.ilre c,oatf.lwc *twlJ,, bot o ta JOU't cne, d*tailed HUJ1:po.aad
.(Mtluattou were iefe.trr...t u tn..Pfft c.outtuc.tton pUl!lit period.
- Slac.* then *tte't*.ea-. taolved',fin'~ rector el**ta* **
1'elte'ft that t"h~J Q.ould Im @Mi.fUod ia ~
- fhal. d.aign.
~lu of a. fn* of the U"Q* *w.,** e~,
with *re.:
(1) h--.tur* eluiug of t'tw. :reebeul*tiOn loop
- 1*1-.t::loa *al***.Wld* cacat11 lOP-of-cooldt acc;ictot. eonditiolla CQUld c.aua* tbe reactor pre**ur* w itiei-e.- alMw* ~- *lNtof f :b.Mcl of t'M: low PP#lllft* coot:lq $)'Iha,., **
- (2) Tu <:01\\trol *,Y*t* c~lex for the Law Fr***ure Coolant Injection Syat* (LPCU) baa tncruud aipificautly i.n t*rma of functional requirl.llMUtta tit order to develop
- capability to C.over
- vide apectrua of variou* bYuk conditlou. Thia MAY 2 4 \\967 inelutlea the ef f.cu of oper*tioe with the *'equaliser
line open. and the ab:U1*t1 to eorreetly aeue "hr*ak locat.ton.. "
.14.df.tiOM.l tnfor.atioa :ta aece**ary t:o
- t!M. ayatem'
- ability to re.ti~bly detect a break in. a rec1,rcu1*t1on li:a* *ad the.n *k* tlw corr-act ~
14tteiaima 0 aa to which inlet valve to open.
(3) Consideration ta c:Ut'r<<utly he.tq give.a oa ot!Mr
- illilar.-eactor pl&J:1ta to diveraific*tion. in initiatiae &igub for the utire SCCS ayst*.
'.l.s i:Nll'ticul&r
- u*e of
- h:lgb -Orywell 9ra~111ura signal it be!na con.ider*d. This parm.etQr could aerve as an iftdep<<ndent baeku* to reactor veeeel water level.
~e 'believe that coat14*tation to div~rsi ftcation fo~ eignal iaiti*tion. 1hQuld be given to your de.a ip.
(4) 'rne ef fee ts of *'fAlll of t'be two... pue.e aixt4ar~ in the reactor v***el :fo't' saall breaks. Fol' th'ls cl.us of breaks the Hip Presal.lr.a Coolant Injectioit Sy*t*
(HPCIS) would be* r~uir*4 to provide core cooU.na.
Oll:r cone*nl b that tb* axceaa1ve water cal'.l'YC>Vel' 11&y af £~ct tu.rbine operatton.
Since Unit 2,. v\\dcb wiU l>e ea&entiat1y iclen.t:i.~l to Unit 3, will J$001't be und*T consideration for a initial operacing liceaae., w uqu~st. that a d*t*ilecl t*port be pnipared and *ub1d.tted for our :review on tho auoject of the r.ccs ** *ooa
- practicable. Till* ~QQJ:t ehould be s:eapouive to the abfte and all otkr pertinent utters ia tar. of the.final de*tp.
We 'Ifill..,_ avail*ble to **t and* diacuss ny details of tlae report coate*ts for cl11rif1caU.oa.
Ia a4diticm, ** urly eati.at* of a sehedule regarding report pTeparatioa and suhlllta*ioa should be prov14<<4.
ORIGINAt SIGNED BY Peter A: Morris i'abter A. 'Horris, DirectoT Divtaica of lte.actor Uceuuaa AIR MAii~
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