ML19290C854
| ML19290C854 | |
| Person / Time | |
|---|---|
| Site: | North Anna  |
| Issue date: | 02/11/1980 |
| From: | Stallings C VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.) |
| To: | Parr O Office of Nuclear Reactor Regulation |
| References | |
| 118, NUDOCS 8002140009 | |
| Download: ML19290C854 (1) | |
Text
VrnorNIA ELucTurc AND Pow su CoxmNY HIcIIxoxo,VINGINIA uOu61 February 11, 1980 Mr. Olan D. Parr, Chief Serial No. 118 Light Water Reactors Branch No. 3 LQA/WRM:rab Division of Project Management U.-S. Nuclear Regulatory Commission Docket No. 50-339 Washington, D.C.
20555
Dear Mr. Parr:
NORTH ANNA POWER STATION UNIT 2 INSTALLATION OF INSPECTION PORTS ON STEAM GENERATORS We have received the January 21, 1980 letter from Mr.
D. F. Ross, Jr., Acting Director of the Division of Project Management, to Mr. W. L. Proffitt regarding the installation of inspection ports on the steam generators at North Anna Power Station, Units 1 and 2.
We have reviewed the NRC recommended action calling for the installation of inspection ports in cach of the three steam generators of North Anna Unit 2 prior to the start of commercial operation.
Westinghouse has informed us that installation of inspection ports will require a minimum of two months.
After consideration of the recommended action, we have concluded that completion of the inspection port installation prior to the currently scheduled March 1980 fuel load date is not practical due to time constraints; furthermore, in view of the current estimates of
$350,000 per day for the fuel component of replacement power costs for nuclear units, it would be of greater benefit to our consumers to implement this action concurrently with a planned unit outage if and when the ports are needed.
As an alternative, we propose that the row 1 tubes in each of the three steam generators be plugged since these tubes are the most susceptible to leakage. Our experience with installing inspection ports at Surry 1 has shown that they can be installed in all three steam generators with a personnel exposure of approximately 7.5 man-rem; therefore, if at some future date it becomes necessary to install the inspection ports, we will do so during a planned refueling outage.
If you have any questions or require additional information, please contact this office.
Very truly yours, b [l\\.$:cd3>
C. M. Stallings Vice President-Power Supply and Production Operations cc:
Mr. D. F. Ross, Jr., Acting Director Division of Project Management 8002140O S