ML20064A627

Requests That Requirement Date for Installation & Testing of Alternate Ac Power Source & Compliance w/10CFR50.63 Be Deferred Until Completion of Eighth Refueling Outage

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 %y , 7 N' g4y o

, ' d[ K , A, j[ Vg-p; e 7'a 7 y

(o

? h' e '

a m H W'

y, ' ~,

lifil't 4 , ,

1. 1

4" < ' -

J' ' '

wp

' \ , ' %_' p l ; < s. r

_, q:  !

.w e

S N -

~

f

, ,. t , l A Carterw Energy Company *.

, .i. i ,

' ' ^.^ "'

' c ,

&e z 7 ,

i DONALO C. SHELTON '

, vr a = -r w .ar--

I f T, q'. ^

q .;

-I (419)P49-2300 c

' o t g

d

[x'[t $ DoAkh+ Number:50-346'

.: . W ,

sk-(~

M license'NumberNPF-3!

wm 4

. m. , n 29 ESeriEl Numbe'rl1'8423 i f[~

% t y.

2,?

>; September 6,J199'r a

f O

g

's 4 ' , is United States Nuclear, Regulatory Commission ;j

) , yDocument: Control Desk < ' .,

Q, ' ', . ? Vashington, D. C. .20555i ]

p. o i < 1

.k. im ,' ' 1-Subj ect ::L Suppl.emental Station Blackout-(SBO) Response for Davis-Besse 0

lwp p ar +

Q' i a

f 'M ," Gentlemen:f

_. .. ~ m.. 2., . 9 2On April:17,'(1989i Toledo Edison submitted its responseL(Sarial. Number 1651)..

~

W ,

• 1 i!

f tostheqStation', Blackout' rule (10 CFR-50.63). In this response, Toledo.Edisont

,g 1

committed to install an alternate AC (AAC) power source to meet ~ the.

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 q a Kupon?the NRC issuingia Safety Evaluati6h~Repori (SER) within three months'of' .

, f y . the AprilL17,;1989 submittal, j xn -.

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

n 4 L1990.1;Thusi complianc'e vith 10 CFR

50.63 vill,be required by,the Fall o.f- 1 1992.. R

+ <cm 3

-7 y{-

.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 1 related electrical. buses-to?be deenergized during portions:of_the acceptance j 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 i - necessary fthat ~ acceptance testing: of the AAC power source be conducted with ,

"[; 3 -

4t he' plant,in the Cold' Shutdown or Refueling mode to meet Technical J

V L

QSpecification're'quirements.

9009140252 900906 O b,

PDR P

ADOCK 05000346 PDC k3.1*J P B 0

N. s 1

.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 -!

• 1. ,, Serial Number 1842:

+

<, ~-

gj7

, , Page*2-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 J

.l 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  !

i

> 4

,Mrg R.=V. Schrauder, Manager - Nuclear Licensing, at.(419)-249-2366. y m: . .

J ;Veryftruly yours,;

e o

-~,

E t 0 : e NKP/mmb:  ;

tect ~ P. M.s Byron', DB-1 NRC Senior Resident Inspector

', i A. B.; Davis, RegionalLAdministrator, }UM: Region III

~

H

. 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