ML20210U330
| ML20210U330 | |
| Person / Time | |
|---|---|
| Site: | McGuire, Mcguire  |
| Issue date: | 05/29/1986 |
| From: | Hood D Office of Nuclear Reactor Regulation |
| To: | Tucker H DUKE POWER CO. |
| References | |
| REF-GTECI-A-49, REF-GTECI-RV, TASK-A-49, TASK-OR TAC-59962, TAC-59963, NUDOCS 8606020293 | |
| Download: ML20210U330 (2) | |
Text
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Docket Nos.: 50-369 and 50-370 2 S MAY I333 Mr. H. B. Tucker, Vice President Nuclear Production Department Duke Power Company 422 South Church Street Charlotte, North Carolina 28242
Dear Mr. Tucker:
SUBJECT:
REQUEST FOR ADDITIONAL INFORMATION REGARDING PRESSURIZED THERMAL SHOCK PROTECTION - MCGUIRE NUCLEAR STATION, UNITS 1 AND 2 By letter dated January 15, 1986, and in response to 10 CFR 50.61, " Fracture Toughness Requirements for Protection Against Pressurized Themal Shock," you provided reference temperatures (RTreactor vessel beltline materials cSIku) lated for the s for the McGuire Nuclear Station station. We have reviewed your letter and find that the following additional information is needed to conclude our review:
Provide justifications for the copper and nickel contents and the initial stbs:alues as required by paragraph 50.61 (b) (iii) of the FT5 rule, which RT v
""Cu" and "Ni" mean the best estimate weight percent of copper and nickel in the material.
The source of these values must be included in the assessment. The relationship of the material, on which any measurements were made, to the actual material in the pressure vessel must be described."
For the weld metals, which appear to be controlling for Unit 1, it would be acceptable to describe the weldments on which measurements were made and relate them to the vessel welds by their weld wire heat numbers, giving the individual measurements or the number of measurements, their range and their average.
If the values in the submittals are not averages, their derivation should be justified.
Your response is requested within 45 days of this letter.
Contact me at (301)492-8035 if you have questions.
)$)
Darl Hood, Project Manager PWR Project Directorate !4 Division of PWR Licensing-A DS l' DISTRIBUTION:
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Mr. H. B. Tucker Duke Power Company McGuire Nuclear Station cc:
Mr. A. Carr Dr. John M. Barry Duke Power Company Department of Environmental Health P. O. Box 33189 Mecklenburg County 422 South Church Street 1200 Blythe Boulevard Charlotte, North Carolina 28242 Charlotte, North Carolina 28203 Mr. F. J. Twogood County Manager of Mecklenburg County Power Systems Division 720 East Fourth Street Westinghouse Electric Corp.
Charlotte, North Carolina 28202 P. O. Box 355 Pittsburgh, Pennsylvania 15230 Chairman, North Carolina Utilities Comission Mr. Robert Gill Dobbs Building Duke Power Company 430 North Salisbury Street Nuclear Production Department Raleigh, North Carolina 27602 P. O. Box 33189 Charlotte, North Carolina 28242 Mr. Dayne H. Brown, Chief Radiation Protection Branch J. Michael McGarry, III, Esq.
Division of Facility Services Bishop, Liberman, Cook, Purcell Department of Human Resources and Reynolds P.O. Box 12200 1200 Seventeenth Street, N.W.
Raleigh, North Carolina 27605 Washington, D. C.
20036 Senior Resident Inspector c/o U.S. Nuclear Regulatory Comission Route 4, Box 529 Hunterville, horth Carolina 28078 Regional Administrator, Region II U.S. Nuclear Regulatory Commission, 101 Marietta Street, N.W., Suite 2900 Atlanta, Georgia 30323 L. L. Williams Operating Plants Projects Regional Manager Westinghouse Electric Corporation - R&D 701 P. O. Box 2728 Pittsburgh, Pennsylvania 15230 l
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