ML20136D006

From kanterella
Jump to navigation Jump to search
Informs of GDC 17 Mod Status.Several Motor Operated Valves Will Be Tested to Resolve Analysis Data Vs Plant Performance Data Questions During Present Refueling Outage.Testing Will Take Approx 2 Wks to Complete
ML20136D006
Person / Time
Site: North Anna 
Issue date: 11/15/1985
From: Stewart W
VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
To: Butcher E, Harold Denton
Office of Nuclear Reactor Regulation
References
85-750A, NUDOCS 8511210207
Download: ML20136D006 (2)


Text

o m

VIRGINIA ELECTHIC ann PowEn COMPANY RicnwoNn, VIRGINIA 2132031 W L. STEWANT vice Panasomwr Nurs. man OPE RATIONE November 15, 1985 Mr. Harold R. Denton, Director Serial No.: 85-750A Office of Nuclear Reactor Regulation N0/ ALM:vlh Attn:

Mr. Edward J. Butcher, Acting Chief Docket No.: 50-338 Operating Reactors Branch No. 3 License No.:NPF-4 U.S. Nuclear Regulatory Commission Washington, D.C.

20555 Gentlemen:

VIRGINIA ELECTRIC AND POWER COMPANY NORTH ANNA POWER STATION UNIT 1 GENERAL DESIGN CRITERIA 17 MODIFICATION STATUS In our letter dated October 21, 1985, Serial No.85-750, we informed you of our intentions to reschedule the completion of our commitment to

' enhance 26 MOV's during the present Unit I refueling outage. Our letter Indicated that the modifications to 11 of the MOV's would not be performed until questions regarding analysis data versus plant performance data could be resolved. However, we now believe that these questions can be resolved during this outage.

Several MOV's.will be tested to resolve the analysis data versus plant performance data questions. For the remaining MOV's in question that are not tested, the torque switch settings recommended by the vendor (Limitorque) for 80% voltage ratings conform with present plant performance data. The testing will begin the week of November 11, 1985, and will take approximately two weeks to complete. Every attempt will be made to complete the requires testing and/or modifications during this refueling outage. We will no0ffy you prior to resuming power operations of any GDC-17 required modification that cannot be completed during this outage.

8511210207 851115 i

PDR ADOCK 05000338

'8g P

PDR l

',f

-.-a

.. -- --~...-

g*)

4

' VlaosutA Es.scTasc Awo Powsn Counxv To Mr. liarold R. Denton i

If you have any questions or need additional information, please contact us.

Very truly yours, i

\\

g _ __

w M'

h e W. L. Stewart cc:

Dr. J. Nelson Grace Regional Administrator Region II

- Mr. Leon Engle NRC North Anna Project Manager Mr. M. W. Branch NRC Resident Inspector North Anna Power Station I

1 1

.v.

+-.-.

9

,,n--,w--

,-e.---we.%

--m+ap--w......w.,

-.e-,..,--,.,m..,

g, e

+~ ~ ~ - ---