ML20046C845

Forwards SE Granting Licensee 930429 Request to Use Alternative Weld Matl in Fabrication & Installation of Replacement SGs for Plant

ML20046C845
Person / Time
Site:	Mcguire, Catawba, McGuire
Issue date:	07/20/1993
From:	Matthews D Office of Nuclear Reactor Regulation
To:	Grier G DUKE POWER CO.
Shared Package
ML20046C846	List: ML20046C845 ML20046C847
References
TAC-M86320, TAC-M86328, TAC-M86329, NUDOCS 9308120299
Download: ML20046C845 (5)

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WASHINGTON, D.C. 2055M)001 July 20, 1993 Docket Nos. 50-369, 50-370 and 50-413 Mr. George Grier General Manager, Nuclear Services Duke Power Company P. O. Box 1006 Charlotte, North Carolina 28201-1006

SUBJECT:

REQUEST TO USE ALTERNATIVE WELD MATERIALS IN THE FABRICATION AND

-INSTALLATION OF REPLACEMENT STEAM GENERATORS FOR MCGUIRE NUCLEAR STATION, UNITS 1 AND 2, AND CATAWBA NUCLEAR STATION, UNIT 1 (TAC N05. M86328, M86329 AND M86320)

By letter dated April 29, 1993, Duke Power Company (the licensee) requested; approval.under the provisions of 10 CFR 50.55a(a)(3)(1) to use ASME Section IX Code Cases 2142 and 2143 during the impending fabrication and installation of replacement steam generators (SG's) for the McGuire Nuclear. Station, Units 11 and 2. and Catawba Nuclear Station, Unit 1.

These two Code Cases introduce and classify new nickel base weld metals that closely match and are intended for welding Alloy 690. Code Case 2142 establishes welding classifications and other requirements 'for a bare wire filler metal. Code Case 2143 establishes welding classifications and other requirements for a coated-electrode.

The subject Code Cases were adopted by the ASME on December 7, 1992, and were scheduled to be published in ASME Code Case Supplement 3 in April-1993. Due to the fact that this is a Supplement to the 1992 edition of the ASME Code, these Code Cases cannot be used by the licensees without prior NRC staff review. The 1992 edition.of the ASME Code has not been incorporated by 1

reference into the regulations.

'The staff has reviewed your request and has determined that the proposed alternative is acceptable.

The staff. finds that the proposed, alternative will-provide an acceptable level of quality and safety, and authorizes its use pursuant to 10 CFR 50.55a(a)(3)(1).

Since this is.a first. time use for the-Alloy 690 weld metals, however, the staff recommends that you either use one

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Mr. George Grier July 20,1993 heat of each type of weld metal or keep detailed records of individual heat usage locations. An evaluation of the request is enclosed.

Sincerely,

/s/

David B. Matthews, Director Project Directorate 11-3 Division of Reactor Projects - I/II Office of Nuclear Reactor Regulation

Enclosure:

Safety Evaluation cc w/ enclosure:

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i Mr. George Grier July 20,1993 heat of each type of weld metal or keep detailed records of individual heat usage locations. An evaluation of the request is enclosed.

Sincerely, David B. Matthews, Director l

Project Directorate 11-3 Division of Reactor Projects - I/II Office of Nuclear Reactor Regulation

Enclosure:

Safety Evaluation cc w/ enclosure:

See next page

McGuire Nuclear Station Duke Power Company Catawba Nuclear Station cc:

Mr. A. V. Carr, Esquire Mr. Dayne H. Brown, Director Duke Power Company Department of Environmental, 422 South Church Street Health and Natural Resources Charlotte, North Carolina 28242-0001 Division of Radiation Protection P. O. Box 27687 County Manager of Mecklenberg County Raleigh, North Carolina 27611-7687 720 East Fourth Street Charlotte, North Carolina 28202 Mr. Alan R. Herdt, Chief Project Branch #3 Mr. R. O. Sharpe U. S. Nuclear Regulatory Commission Compliance 101 Marietta Street, NW. Suite 2900 Duke Power Company Atlanta, Georgia 30323-McGuire Nuclear Site 12700 Hagers Ferry Road Ms. Karen E. Long Huntersville, NC 28078-8985 Assistant Attorney General North Carolina Department of J. Michael McGarry, III, Esquire Justice Winston and Strawn P. O. Box 629 1400 L Street, NW.

Raleigh, North Carolina 27602 Washington, DC 20005 Mr. G. A. Copp Senior Resident Inspector Licensing - EC050 c/o V. S. Nuclear Regulatory Duke Power Company Commission P. O. Box 1006 12700 Hagers Ferry Road Charlotte, North Carolina 28201-1006 Huntersville, North Carolina 28078 Regional Administrator, Region II Mr. T. Richard Puryear U.S. Nuclear Regulatory Commission Nuclear Technical Services Manager 101 Marietta Street, NW. Suite 2900 Carolinas District Atlanta, Georgia 30323 Westinghouse Electric Corporation P. O. Box 32817 Charlotte, North Carolina 28232 Dr. John M. Barry Mecklenberg County Department of Environmental Protection 700-N. Tryon Street Charlotte, North Carolina 28202

McGuire Nuclear Station Duke Power Company Catawba Nuclear Station cc:

Mr. R. C. Futrell North CaN1ina Electric Membership Regulatory Compliance Manager Corporation Duke Power Company P. O. Box 27306 4800 Concord Road Raleigh, North Carolina 27611 York, South Carolina 29745 Senior Resident Irispector North Carolina MPA-1 Route 2, Box 179 N Suite 600 York, South Carolina 29745 l

P. O. Box 29513 Raleigh, North Carolina 27626-0513 Mr. David L. Rehn Vice President, Catawba Site County Manager of York County Duke Power Company York County Courthouse 4800 Concord Road York, South Carolina 29745 York, South Carolian 29745 Richard P. Wilson, Esquire Mr. T. C. McMeekin Assistant Attorney General Vice President, McGuire Site South Carolina Attorney General's Duke Power Company Office 12700 Hagers Ferry Road P. O. Box 11549 Huntersville, North Carolina 28078 Columbia, South Carolina 29211 Piedmont Municipal Power Agency 121 Village Drive Greer, South Carolina 29651 1

Saluda River Electric P. O. Box 929 Laurens, South Carolina 29360 Mr. Heyward G. Shealy, Chief Bureau of Radiological Health South Carolina Department of Health and Environmental Control 4

2600 Bull Street Columbia, South Carolina 27602