ML20244B330

Forwards Rev 3 to Final Design Description of ATWS Mitigation Sys Actuation Circuitry. Rev Incorporates Info Based on Installation of Sys at All Four Duke Westinghouse NSSS Units & Addresses Comments by NRC During 890510 Telcon

ML20244B330
Person / Time
Site:	Mcguire, Catawba, McGuire, 05000000
Issue date:	06/02/1989
From:	Tucker H DUKE POWER CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
Shared Package
ML20244B332	List: ML20244B330 ML20244B334
References
NUDOCS 8906130071
Download: ML20244B330 (1)

Text

a(

q, A

./

=.:

.t 4

i, 4

C

-. e DuxE POWER GOMPANY P.O. BOX 33189 i

[

CHAMEDFIT., N.C. 28942 s.

HAL B. TUGER '

~U..

TELarnown

. vaca enemmen.

(704) 373-4831' lq wun. mas racoterms

~ '

i 1.

June 2, ;1989 -

7. i d

. Document Control Desk.

U. S; Nuclear, Regulatory Commission-Washington,.D.-C.. 20555-1

Subject:

McGuire Nuclear Station 1 Docket-.Nos.:50-369 and 50-370 Catawba Nuclear. Station Docket Nos.'50-413 and 50-414-R

.ATWS/AMSAC I submitted on June 1, 1988, Revision 2'to the Final Design Description of the'-

ATWS Mitigation System Actuation' Circuitry (AMSAC). Attached-is Revision 3 of-the Final Design Description. This. revision! incorporates'information based ~on

.the installation of the system at all four Duke. Westinghouse NSSS units.. It' also addresses the comments noted by the NRC' staff:in a-conference call with members of my staff on May 10, 1989. Specifically, directions to Operations personnel for bypassing the system are outlined on page-21 of the' design description.

Very truly yours, 44 k

(

Hal B. Tucker PGL/IV/44 Atta'chments.(55 pages) xc: S. D. Ebneter, Regional Administrator U. S. Nuclear Regulatory Commis;sion Region 11 101 Marietta Street, NW, Suite'2900 l

Atlanta, Georgia 30323 Mr. W. T. Orders NRC Resident inspector Catawba Nuclear Station

-q l.

g5 8906130071 890602 W

gDR ADOCK 05000369 PDC

-1 a

_ _ _ _ _ _ _ _