ML19209A137
| ML19209A137 | |
| Person / Time | |
|---|---|
| Site: | Kewaunee, Point Beach, Prairie Island  |
| Issue date: | 09/05/1979 |
| From: | Lainas G Office of Nuclear Reactor Regulation |
| To: | Schwencer A Office of Nuclear Reactor Regulation |
| Shared Package | |
| ML19209A138 | List: |
| References | |
| NUDOCS 7910030004 | |
| Download: ML19209A137 (2) | |
Text
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SEP 5 1979 MEMORANDUM FOR:
A. Schwencer, Chief, Operating Reactors Branch #1, D0R FROM:
G. Lainas, Chief, Plant Systems Branch, 00R
SUBJECT:
STEAM GENERATOR WATER HAMMER EVALUATION FOR KEWAUNEE, P0 INT BEACH UNITS 1 AND 2, AND PRAIRIE ISLAND UNITS 1 AND 2 The NRC in September 1977, informed all PWR licensees that water hammer events due to the rapid condensation of steam in the feedwater lines of steam generators represented a safety concern and-that further actions by licensees for Westinghouse and Combustion Engineering designed nuclear steam supply systems are warranted to assure that an acceptably low risk to pahlic safety due to such events is maintained.
We have reviewed plant operating data and the submittals from the owners of the five operating units listed above and we have concluded that steam generator water hamer is not likely to occur at these plants during normal operation or as a result of transient or accident conditions. We, therefore, determined that modifications to prevent steam generator water hammer are not necessary for the continued safe operation of these nuclear power plants. However, we will conti. ue to monitor the licensee's operating reports for indications of water hammer and will reexamine this matter if such indications appear.
At@
G. Lainas, Chief Plant Systems Branch Division of Operating Reactors
Contact:
S. MacKay, X27'.10
Enclosure:
As stated cc w/ enclosure:
See page 2 1037 288 7910CS E
7910030c'O
cc w/ enclosure:
D. Eisenhut
- 8. K. Grimes S. Hanauer E. Adensam G. Lainas L. Olshan
'C. Trammell M. Grotenhuis S. MacKay D. Christiansen (EG&G)
D. Fischer R. Colmar E. Reeves W. Gammill 1087 289
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