ML19329C482
| ML19329C482 | |
| Person / Time | |
|---|---|
| Site: | Davis Besse  |
| Issue date: | 11/02/1976 |
| From: | Stolz J Office of Nuclear Reactor Regulation |
| To: | Roe L TOLEDO EDISON CO. |
| References | |
| NUDOCS 8002140860 | |
| Download: ML19329C482 (2) | |
Text
__
m s
Distributi
/
Docket File '
W. P. GarrIdi i x.
ilRC PDR ELD NOV 21976 Local PDR IE (3)
D. B. Vassallo F. J. Williams M
J. Stolz f'
L. Engle Jocket ;io.50-34G #
E. Hylton R. Heineman D f D
D. Ross Toledo Edison. Company J. Knight, SS D)
ATT;1: iir. Lowell E. Roe,
R. Tedesco r
n Vice President, Facilities H. Denton g
b
{ 11/
Development V. A. ffoore A
Edison Plaza R. H. Vollmer 300 stadison Avenue M. L. Ernst Toledo, Ohio 43652 bcc:
J. R. Buchanan, flSIC Gentlemen:
T. B. Abernathy, TIC 1
CCCS-SYSTEM-LOW PRESSURE I:!JECTIO;i TO LO'I PRESSURE I'iJECTIO:I CD HIGH PRESSURE IdJECTIO:t TO LOW PRESSRE I.iJECTIM (DAVIS-BESSE, U: LIT 1)
On July 23,1976, "r. L. Engle, Licensing Project Manager, r.otified Mr. E. Novai, General Superintendent, Power Engineering and Construction, as to the staff's positions regarding your apneal neeting held on July 21, t
1370, regarding the Davis-Besse, Unit 1 (DB-1) ECCS systen design.
You wert notified at that time and in other discussions tn3t (1) the axisting DE-1 lou pressure injection to low pressure injection crossover line,ias found to De acceptable by the staff and (2) that the staff i
position in regard to the need for renote nanual caceilities af ter a snali cre.ak LOCA (high pressure injection to low cressure injaction) remaincd unchanged.
de';arding iten 2 above, for small sized pire ructures in the DB-1 ECCS
- yst,
- n Jasign, the re<tctor coolant systea pressure nay be hig';er than tne c'.1ximum low pressure injcction pump head at the tinc containnent suap water recirculation is recuired. Under these conditions, a cross-uver connection is provided in the DB-1 design to pernit aligreent of the nign pressure Inake-up pump suction with the low cressure injection eccler discharge to permit nigh pressure injection during tne recirculation mode of operating. As now existing in DB-1, this alignment is accomplished by the operator manually opening one valve in each of the two crossover
, pipe lines located in the auxiliary building.
^
e %
j
., J [p omCEF n,,,,,,
,u meioa WE F 04vs >
+
Foren ABC.318 Gav. 9 53) ABCM 9240
- u. e. eovannessest mansee omcas inv4.eae.see s o o z ao No 4
s~
i NOV 2 1976 Toledo Edison Company 2-Our position is that in order to % prove the availability of the energency core cooling system, we require th;c this alignment be accorp11shed from i
tne control room. Tnerefore, we require that tnese valycs te notor-operated with control and position indication provided in the centrol rocm.
The staff's position regarding remote manual capabilities after a small break LOCA is stated as a staff position in the present draft SER for DC-1.
iherefore, we request you advise us of your intentions regarding this matter and provide us with a schedule as to when you could provide the motorized valves with the required control and indication in the control roCn.
I Since you have been advised of these matters for scre time, we recuest tnat you reply to our concerns as stated above within five days receint of this letter.
Please do not hesitate to call us if you nave any questions concerning' these matters. We will arranga a meeting witn you if you so desire.
Sincerely, Orignal SI: ped E[
dC M I N T.ol4 Chief Light Water Reac:ces Branch !c.1 Jivision of P~,oject !!anaqcment Oc:
.r. Donald H. h uscr, E30.
ihe Cleveland tinctric Illuninating Crnw F. 4. Box M00 ulevelia.1, enia 441J1 h0D Ger11d Gnarnof f, Sq.
U Shaw, Pitt: nan, rotts inc irowbridge IJ.03 M Street, N. W.
[D Washington, u. C.
20036 Leslie Henry, Esq.
Fuller, Sency, Henry and I!cdge 300 :tadison Avenue Toledo, Ohio 43604 LWR 1 V LW orrec a,
LEngl'e7ryd_ J_Stolz _ _ j I1/(/76 _ ll/h76__e Tonn AEC.)l3 (Rev. 9 53) MCM 0240
- p. s. aovansw a=7 raintino oprics: t e,4. see.n ee j
-