ML17223A306
| ML17223A306 | |
| Person / Time | |
|---|---|
| Site: | Saint Lucie  |
| Issue date: | 09/06/1989 |
| From: | Norris J Office of Nuclear Reactor Regulation |
| To: | Woody C FLORIDA POWER & LIGHT CO. |
| Shared Package | |
| ML17223A307 | List: |
| References | |
| TAC-59144, TAC-59145, NUDOCS 8909120030 | |
| Download: ML17223A306 (4) | |
Text
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UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D. C. 20555 September 6, 1989 Docket Nos.
50-335 and 50-389 Nr.
C. 0.
Woody Acting Senior Vice President - Nuclear Nuclear Energy Department Florida Power and Light Company Post Office Box 14000 Juno Beach, Florida 33408-0420
Dear Nr. Woody:
SUBJECT:
COMPLIANCE WITH THE ATWS RULE, 10 CFR PART 50.62 - ST.
LUCIE PLANT, UNIT NOS.
1 AND 2 (TAC NOS.
59144 AND 59145)
The ATWS Rule (10 CFR Part 50.62),
Requirements for Reduction of Risk from Anticipated Transients Without Scram (ATWS) Events for Light-Water-Cooled Nuclear.
Power Plants, requires improvements in the design and operation of commercial nuclear power facilities to reduce the likelihood of failure to shut down the reactor following the anticipated transients, and to mitigate the consequences of an ATWS event.
The requirements for St.
Lucie Plant, Unit Nos.
1 and 2 are to provide a diverse scram system (DSS), diverse auxiliary feedwater actuation system (DAFAS), and diverse initiation of turbine trip (DTT).
Paragraph (c)(6) of the rule requires that information sufficient to demonstrate compliance with the requirements be submitted to NRC.
Florida Power
& Light Company (FP&L) provided information concerning implementation of ATWS Rule requirements at St. Lucie Plant, Unit Nos.
1 and 2 by letters dated July 15,
- 1987, August 15,
- 1988, and May 30, 1989.
The staff, with the assistance of the EG&G Idaho Inc., its consultant, has reviewed this information.
Based on this review, we have concluded that the
- DSS, DTT, and DAFAS designs are accept-able.
The details of our review are contained in the enclosed Safety Evaluation.
One concern, discussed in Section 4.1.E of the Safety Evaluation, relating to a single annunciator window being used to indi cate two opposite messages (Actuated vs Bypassed),
is not good human engineering practice.
FP&L should resolve this concern through the Human Factors Engineering Program.
We further acknowledge. the FP&L's comitment to have the ATWS modifications implemented on both St.
Lucie units during the refueling outages scheduled to OFof OR AGO
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Mr. C.O.
Woody September 6, 1989 begin in 1990.
With this letter we are closing TAC Nos.
59144 and 59145,
- however, FPSL should continue to submit the bimonthly progress reports until the modifications are implemented.
Sincerely,
Enclosure:
As stated cc w/enclosure:
See nex t page DISTR I BUTION
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MSinkule RII HBerkow HLi 7E/12 Original si.gned by Jan A. Norris, Sr. Project Manager Project Directorate II-2 Division of Reactor Projects-I/II Office of Nuclear Reactor Regulation t LETTER28]
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Mr. C. 0.
Woody Florida Power 8 Light Company St. Lucie Plant CC:
Mr. Jack Shreve Office of the Public Counsel Room 4, Holland Building Tallahassee, Florida 32304 Senior Resident Inspector St. Lucie Plant U.S..Nuclear Regulatory Commission 7585 S.
Hwy AlA Jensen Beach, Florida 33457 State Planning 5 Development Clearinghouse Office of Planning 5 Budget Executive Office of the Governor.
The Capitol Building Tal 1ahassee, F1 ori da 32301 Harold F. Reis, Esq.
Newman E Holtzinger 1615 L Street, N.W.
Washington, DC 20036 John T. Butler, Esq.
- Steel, Hector and Davis 4000 Southeast Financial Center Miami, Florida 33131-2398 Administrator Department of Environmental Pegulation Power Plant Siting Section State of Florida 2600 Blair Stone Road Tall ahassee, F1ori da 32301 Mr. Weldon B. Lewis, County Administrator St. Lucie County 2300 Virginia Avenue, Room 104 Fort Pierce, Florida 33450 Mr. Charles B. Brinkman, Manager Washington Nuclear Operations Combustion Engineering, Inc.
12300 Twinbrook Parkway, Suite 330 Rockvi lie, Mary land 20852 Mr. Jacob Daniel Nash Office of Radiation Control Department of Health and Rehabilitative Services 1317 Winewood Blvd.
Tallahassee, Florida 32399-0700 Regi ona 1 Administrator, Region II U.S. Nuclear Regulatory Commission 101 Marietta Street N.W., Suite 2900 Atlanta, Georgia 30323 Mr. Campbell Rich 4626 S.E. Pilot Avenue Stuart, Flori da 34997