ML20064A627
| ML20064A627 | |
| Person / Time | |
|---|---|
| Site: | Davis Besse  |
| Issue date: | 09/06/1990 |
| From: | Shelton D TOLEDO EDISON CO. |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| 1842, NUDOCS 9009140252 | |
| Download: ML20064A627 (2) | |
Text
M N' ' d[ K, A, j[ V g4y %, 7
?
h' a
H y
m y
p; e 7'a 7
g-(o e
o lifil't $
y, W'
~,
4 4" < '
1 J'
' \\, ' %_' p l ; < s.
wp q:
r
.w e N
- S l A Carterw Energy Company *.
~
f t
i
.i.
^.^
&e z
- ' c 7
i DONALO C. SHELTON '
vr a = -r w.ar--
I f T, q'.
q.;
(419)P49-2300 c
-I
^
[x'[t o
t g
d DoAkh+ Number:50-346' k-(~ license'NumberNPF-3!
.:. W M
. m.
s 4
wm n
29 ESeriEl Numbe'rl1'8423 i
f[~
>; September 6,J199'r O
t g
f
's y.
2,? a 4 ', is United States Nuclear, Regulatory Commission
- j
)
, yDocument: Control Desk < '
Q, ' ',. ?
Vashington, D. C..20555i
]
.k. im,' ' 1-Subj ect ::L Suppl.emental Station Blackout-(SBO) Response for Davis-Besse
- p. o i
1 0
lwp a r p
+
Q'
," Gentlemen:f i!
i a
f
'M
_... ~
m..
2.,
W
- 1 2On April:17,'(1989i Toledo Edison submitted its responseL(Sarial. Number 1651)..
9
~
f tostheqStation', Blackout' rule (10 CFR-50.63).
In this response, Toledo.Edisont
- committed to install an alternate AC (AAC) power source to meet ~
the.
1
,g u,p greq'uirements(of t thenrule.by:the end,of the seventh' refueling outage at-Davis-1 lBesse Nuclear Power Station.(DBNPS). This scheduled completion date.vas based
'j
?
a Kupon?the NRC issuingia Safety Evaluati6h~Repori (SER) within three months'of' q
, f y.
the AprilL17,;1989 submittal, xn j
Nh'XfBykletter'datedApril-2,L1990-(Serial' Number 1786),ToledoEdisonrevisedits 4 schedule for compliance with the Station ~ Blackout: rule to be within two years T
m m[
S
" of4theLdate of issuance.of the SER. This~ schedule isLin:accordance vith 'the schedule-specified'in: 10 CFR 50.63(c)(4). 'It is Toledo Edison's "j
< lunderstanding.thatithe NRC is scheduled.to issue their SER in'the Fall of L1990.1;Thusi complianc'e vith 10 CFR:50.63 vill,be required by,the Fall o.f-1
- n 4
1992..
R
+ m
- 7 y{
3
<c
.1 m (tAcceptance1 testing of the AAC power source in accordance'with,the~ guidelines a
Q f' containedain NUMARC 87-00 (Appendir B, Item 12); vill require the safety il related electrical. buses-to?be deenergized during portions:of_the acceptance j
1 N, testL(the s'afety related buses vill:not be_deenergized. simultaneously).
In b
w addition,1the bus'undervoltage starting feature for the Emergency Diesel Generators associated with'the safety related buses vill be. required to be
~
defeated while the buses-are deenergized for testing.
~
Therefore, it is
"[; 3
- necessary fthat ~ acceptance testing: of the AAC power source be conducted with i
4 he' plant,in the Cold' Shutdown or Refueling mode to meet Technical J
t
- V L
- QSpecification're'quirements.
9009140252 900906 O
b, PDR ADOCK 05000346 k3. P 1*J P
PDC B
0 N.
1 s
.h i
. THE TOLEDO EDISON COMPANY EDISON PLAZA 300 MADISON AVENUE TOLEDO, OHIO 43652 y
? I a;s
y c;c in lYC"'Dockst:Nu;ber(50-346 t
License Nu:ber:NPF-3 g
- ,, Serial Number 1842:
+
~-
Page*2-j7 a1.
LThe seventh and eighth refueling outages for DBNPS are currently scheduled for' o
the Fall of-1991 and the Spring of 1993, respectively.. Since the present m1'
- compliance date (Fall'1992) does not. fall during a planned outage,_ve request that the; requirement date for installation and testing of the AAC' power
.l J
source, and compliance with 10 CFR 50.63 be deferred until. completion of the
^-
l eighth, refueling outage.
l yyy
.Should you have any' questions concerning this matter, please contact
,Mrg R.=V. Schrauder, Manager - Nuclear Licensing, at.(419)-249-2366.
i 4
y m:
J
- Veryftruly yours,;
e o
-~,
E t
0 :
e NKP/mmb:
', i
~ P. M.s Byron', DB-1 NRC Senior Resident Inspector tect
~
H A. B.; Davis, RegionalLAdministrator, }UM: Region III M. D.ftynch, DB-1 NRC Senior Project Manager Utility Radiological Safety Board (ga
+
i 1
b
's 4
+t
=t e
.h*
5!'
t l
- I
._)
_r,
' ;i