ML17229A495
| ML17229A495 | |
| Person / Time | |
|---|---|
| Site: | Saint Lucie  |
| Issue date: | 10/06/1997 |
| From: | Wiens L NRC (Affiliation Not Assigned) |
| To: | Plunkett T FLORIDA POWER & LIGHT CO. |
| References | |
| TAC-M99315, NUDOCS 9710090157 | |
| Download: ML17229A495 (6) | |
Text
October 6, 1997 Hr. Thomas f. Plunkett President, Nuclear Division florida Power and Light Company Post Office Box 14000 Juno
- Beach, Florida 33408-0420
SUBJECT:
REQUEST FOR ADDITIONAL INFORMATION, ST.
LUCIE UNIT 1
EVALUATION OF MAIN STEAM STOP VALVE INADVERTENT OPENING (TAC NO. H99315)
Dear Hr. Plunkett:
C I
By letter dated July 22, 1997, Florida Power and Light Company requested an amendment to Facility Operating License DPR-67 to incorporate an e'valuation of a postulated inadvertent openirig of a main steam safety valve irito the current licensing basis for St. Lucie Unit 1.
As -a result of our review of this
- request, the Nuclear Regulatory Commission staff has identified additional information which is needed to complete its assessment of this evaluation.
The specific questions are listed "on the enclosed Request for'dditional Information (RAI).
A response to this RAI is requested within 60 days of receipt..
If you have questions concerning this issue, please contact,me at (301) 415-1495.
Docket No. 50-335 Sincerely,
/S/
L., A. Wiens, Senior Project Manager Project Directorate II-3 Division of Reactor Projects-I/II Office of Nuclear Reactor Regulation
Enclosure:
Request for Additional Information cc w/enclosure:
DISTRIBUTION:
Docket Fil e PUBLIC ST.LUCIE Reading B. Boger F.
Hebdon See next page B. Clayton L. Wiens Fil e OGC ACRS J. Johnson, RII T. Collins C. Liang
&/
DOCUMENT NAME:
G:iNEWCONCU.4 To receive a copy of thl~ document, indicate in the box:
C" ~ Copy without attachment/enclosure "E" a Copy with attachment/enclosure N
~ No copy OFFICE PDII-3/PH PDII-3/LA PDI I-3/D HAHE Legions:icM BCIayton FHeMon DATE 10/
/97 10/
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/97 OFFICIAL RECORD COPY 10/
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UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 2055~001 October 6, 1997 Hr. Thomas F. Plunkett President, Nuclear Division Florida Power and Light Company Post Office Box 14000 Juno
- Beach, Florida 33408-0420
SUBJECT:
REQUEST FOR ADDITIONAL INFORHATION, ST.
LUCIE UNIT I EVALUATION OF HAIN STEAM STOP VALVE INADVERTENT OPENING (TAC NO. H99315)
Dear Hr. Plunkett:
By letter dated July 22,'997, Florida Power and Light Company requested an amendment to Facility Operating License DPR-67 to incorporate an evaluation of a postulated inadvertent opening of a main steam safety valve into the current licensing basis for St. Lucie Unit I.
As a result of our review of this
- request, the Nuclear Regulatory Commission staff has identified additional information which is needed to complete its assessment of this evaluation.
The specific questions are listed on the enclosed Request for Additional Information (RAI).
A response to this RAI is requested within 60 days of receipt.
If you have questions concerning this issue, please contact me at (301) 415-1495.
Si cerely,
. A. Miens, Senior Project Hanager Project Directorate II-3 Division of Reactor Projects-I/II Office of Nuclear Reactor Regulation Docket No. 50-335
Enclosure:
Request for Additional Information cc w/enclosure:
See next page
Hr. T. F. Plunkett Florida Power and Light Company ST.
LUCIE PLANT CC:
Senior Resident Inspector St. Lucie Plant U.S. Nuclear Regulatory Commission 7585 S.
Hwy A1A Jensen
- Beach, Florida 34957 Joe Hyers, Director Division of Emergency Preparedness Department of. Community Affairs 2740 Centerview Drive Tallahassee, Florida 32399-2100 H. S.
Ross, Attorney Florida Power
& Light Company P.O.
Box 14000 Juno
- Beach, FL 33408-0420 John T. Butler, Esquire
- Steel, Hector and Davis 4000 Southeast Financial Center Hiami, Florida 33131-2398 Hr. Douglas Anderson County Administrator St. Lucie County 2300 Virginia Avenue Fort Pierce, Florida 34982 Hr. Bill Passetti Office of Radiation Control Department of Health and Rehabilitative Services 1317 Winewood Blvd.
Tallahassee, Florida 32399-0700 Regional Administrator Region II U.S. Nuclear Regulatory Commission 61 Forsyth Street, SW., Suite 23T85
- Atlanta, GA 30303-3415 H. N. Paduano, Hanager Licensing 5 Special Programs Florida Power and Light Company P.O.
Box 14000 Juno
- Beach, Florida 33408-0420 J.
A. Stall, Site Vice President St. Lucie Nuclear Plant 6351 South Ocean Drive Jensen
- Beach, Florida 34957 Hr. J. Scarola Plant General Hanager St.
Lucie Nuclear Plant 6351 South Ocean Drive Jensen
- Beach, Florida 34957 Hr. Kerry Landis U.S. Nuclear Regulatory Commission 61 Forsyth Street, SW., Suite 23T85
- Atlanta, GA 30303-3415 E. J.
Weinkam Licensing Hanager St. Lucie Nuclear Plant 6351 South Ocean Drive Jensen
- Beach, Florida 34957
RE UEST FOR ADDITIONAL INFORMATION INADVERTENT OPENING OF HSSV EVALUATION ST.
LUCIE UNIT 1
- l. Explain why the inadvertant opening of.a main steam safety valve is most limiting when it occurs at hot zero power.
2.
The major acceptance criteria for this event is that the transient DNB value is above the minimum DNBR established for St. Lucie Unit 1 (see SRP
- 15. 1.4).
Please provide the results of the analyses to demonstrate that this acceptance criteria is met.
Confirm that the most conservative parameters are used in the analytical model (address each parameter listed in SRP
- 15. 1.4, page
- 15. 1. 1-4, items a
through d).
Enclosure
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