ML17347A268
| ML17347A268 | |
| Person / Time | |
|---|---|
| Site: | Turkey Point  |
| Issue date: | 02/05/1987 |
| From: | Mcdonald D Office of Nuclear Reactor Regulation |
| To: | Woody C FLORIDA POWER & LIGHT CO. |
| References | |
| TAC-61077, TAC-61078, NUDOCS 8702130411 | |
| Download: ML17347A268 (6) | |
Text
Docket Nos.:
50-250/251 Mr. C. 0. Moody, Group Vice President Nuclear Energy Department Florida Power 8 Light Company P. 0.
Box 14000 Juno Beach, Florida 33408
Dear Mr. Woody:
DISTRIBUTION NRC PDR Local PDR PADP2 Rdg T. Novak OGC-Bethesda E. Jordan B. Grimes J. Partlow N. Thompson D. McDonald D. Miller ACRS (IO)
Gray File
SUBJECT:
Component Cooling Water Flow Balancing - Turkey Point Plant Units 3 and 4
Reference:
TAC Numbers 6l077 and 61078 Florida Power and Light Company's Safety Engineering
- Group, as part of the reconstituted design basis effort, identified concerns relating to the Component Cooling Water (CCW) system.
The two major concerns were:
- 1) flow through the RHR heat exchangers could be less than the required amount per heat exchanger, and 2) the potential for CCW pump runout exists when only one CCW pump is available for post-LOCA recirculation phase conditions.
Due to lack of documentation, an engineering evaluation was performed to determine if the concerns identified above would have an impact on safety.
The results of the evaluation indicated that throttling valves on the discharge side of the Residual Heat Removal (RHR) heat exchangers should be fully opened.
However, prior to advising the plant to open the throttle, valve tests on the CCW system were performed on March 3 and 4, 1986.
The results indicated that neither the throttled position nor the fully open position would provide proper flow to a11 of the system components and it would be necessary to flow balance the system.
Flow balance tests were performed on March 8 and March 9, 1986, for one pump and two pump operation on Unit 3.
A final test was performed on March 18, 1986, to demonstrate that when the system is properly balanced, both the maximum and minimum flow rates to safety-related components are within their design requirements.
NRC staff members, both Regional and Headquarters witnessed the tests; have audited the results; and agree that the CCW system is balanced and the safety-related components are being cooled per their design requirements as previously indicated to your staff. It is our understanding that the detailed design information and test results documented in the March 18, 1986, "Component Cooling Water System Flow Balancing Safety Assessment" will be included in an update to the Turkey Point FSAR.
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Woody Based on the above, we have completed our effort related to this action and have closed TAC Nubmers 61077 and 61078.
Sincer ely, cc:
See next page Daniel G. McDonald, Project Manager PWR Project Directorate ¹2 Division of PWR Licensing-A Office of Nuclear Reactor Regulation L
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Mr. C. 0.
Woody Florida Power and Light Company Turkey Point Plant Harold F. Reis, Esquire Newman and Holtzinger, P.C.
1615 L Street, N.W.
Washington, DC, F0036 Mr. Jack Shreve Office of the Public Counsel Room 4, Holland Building Tallahassee, Florida 32304 Norman A. Coll, Esquire
- Steel, Hector and Davis 4000 Southeast Financial Center Miami, Florida 33131-2398 Mr. C. M. Wethy, Vice President Turkey Point Nuclear Plant Florida Power and Light Company P.O.
Box 029100 Miami, Flor ida 33102 Mr. M. R. Stierheim County Manager of Metropolitan Dade County Miami, Florida 33130 Resident Inspector U.S. Nuclear Regulatory Commission Turkey Point Nuclear Generating Station Post Office Box 57-1185 Miami, Florida 33257-1185 Mr. Allan Schubert, Manager Office of Radiation Control Department of Health and Rehabilitative Services 1317 Winewood Blvd.
Tallahassee, Florida 32301 Intergovernmental Coordination and Review Office of Planning 5 Budget Executive Office of the Governor The Capitol Building Tallahassee, Florida 32301 Adminis tra tor Department of Environmental Regulation Power Plant Siting Section State of Florida 2600 Blair Stone Road Tallahassee, Florida 32301 Regional Administrator, Region II U.S. Nuclear Regulatory Commission Suite 2900 101 Marietta Street Atlanta, Georgia 30323 Martin H. Hodder, Esquire 1131 NE, 86th Street Miami, Florida 33138 Joette Lorion 7269 SW, 54 Avenue Miami, Florida 33143 Mr. Chris J. Baker, Plant Manager Turkey Point Nuclear Plant Florida Power and Light Company P.O.
Box 029100 Miami, Florida 33102 Attorney General Department of Legal Affairs The Capitol Tallahassee, Florida 32304
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