ML20244C509

Advises That Bunker Ramo Penetration Assemblies Environmentally Qualified to Perform Intended Functions for Plants,Per 890224 Rept & .Concerns Expressed in Re Byron Unit 2 Satisfied

ML20244C509
Person / Time
Site:	Byron, Braidwood, 05000000
Issue date:	06/01/1989
From:	Muller D Office of Nuclear Reactor Regulation
To:	Kovach T COMMONWEALTH EDISON CO.
References
NUDOCS 8906140361
Download: ML20244C509 (4)

Text

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UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D. C. 20555

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Docket Nos. 50-455 and 50-457 l- Mr. Thomas J. Kovach Nuclear Licensing Manager Cosmionwealth Edison Company Post Office Box 767 Chicago, Illinois 60690

SUBJECT:

BYRON STATION, UNIT 2 and BRAIDWOOD STATION, UNIT 2 - QUALIFICATION OF ButiKER RAMO ELECTRICAL PEllETRATIONS By letter dated February 24, 1969, you subnitted the report for the Qualification Test Program of the Bunker Ramo instrument penetration assemblies used in Byron Station, Unit 2 and Braidwood Station, Unit 2. In our March 15, 1969 letter, we stated that, based on our initial review, we agreed with your conclusion that the assemblies are environmentally qualified to perform their intended functions for Braidwood 2. However, we also stated that our detaileo review of the report had not been completed.

We have now completed our cetailed review and still conclude that the Bunker Ramo instrument penetration assemblies are environmentally qualified to perform their intended functions. Furthermore, as noted in your March 15 letter, the design and inst 111ation at Byron 2 is the same as at Braidwood 2. Therefore, we conclude that the assemblies at Byron 2 are also environmentally qualifiec to perform their intended function. Thus, the concerns expressed in our January 31, 1989 concerning Byron 2 have been satisfied and we agree that there is no need to replace these asserablies at Byron 2.

M Daniel R. Muller, Director f Project Directorate III-2 Division of Reactor Projects III, IV, V, and Special Projects cc: See next page ge e90624o362 e90602 Y

$DR ADOCK 05000455 PDC

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Mr. Thomas J. Kovach Byron /Braidwood Power Station

• Commonwealth Edison Company Units I and 2 cc:

Mr. Jack Tain Dr. Bruce von Zellen Atomic Power Distribution Department of Biological Sciences Westinghouse Electric Corporation Northern Illinois University Post Office Box 355 DeKalb, Illinois 61107 Pittsburgh, Pennsylvania 15230 U. S. Nuclear Regulatory Commission Joseph Gallo, Esq. Byron / Resident Inspectors Office Hopkins and Sutter 4448 North German Church Road 1050 Connecticut Ave., N.W. Byron, Illir.ois 61010 Suite 1250 Washington, D.C. 20036 Ms. Lorraine Creek Rt. 1, Box 182 C. Allen Bock, Esquire Manteno Illinois 60950 Post Office Box 342 Urbana, Illinois 61801 Mrs. Phillip B. Johnson 1907 Stratford Lane Regional Administrator Rockford, Illinois 61107 U. S. NRC, Region III 799 Roosevelt Road, Bldg. #4 Douglass Cassel, Esq.

Glen Ellyn, Illinois 60137 109 N. Dearborn Street Suite 1300 Ms. Bridget Little Rorem Chicago, Illinois 60602 Appleseed Coordinator 117 North Linden Street Ms. Pat Morrison Essex, Illinois 60935 913 N Main Street #707 Rockford, Illinois 61103-7058 Mr. Edward R. Crass Nuclear Safeguards and Licensing Devid C. Thomas, Esq.

Division 77 S. Wacker Drive Sargent & Lundy Engineers Chicago, Illinois 60601 55 East Monroe Street Chicago, Illinois 60603 Mr. Charles D. Jones, Director Illinois Emergency Services U. S. Nuclear Regulatory Commission and Disaster Agency Resident Inspectors Office 110 East Adams Street RPJ1, Box 79 Springfield, Illinois 62706 Bracev111e, Illinois 60407

Mr. Thomas J. Kovach Byron /Brak' wood e Commonwealth Edison Company cc:

i Mr. Michael C. Parker, Chief Division of Engineering Illinois Department of Nuclear Safety 1035 Outer Park Drive Springfield, Illinois 62704 Michael Miller, Esq.

Sidley and Austin One First National Plaza Chicago, Illinois 60603

~ George L. Etgar Neman & Holtzinger, P.C.

1615 L Street, N.W.

Washington, D.C. 20036 Commonwealth Edison Company Byron Station Manager 4450 North German Church Road Byron, Illinois 61010 l

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', June 1, 1989 Docket Nos. 50-455 and 50-457 Mr. Thomas J. Kovach Nuclear Licensing Manager Commonwealth Edison Company Post Office Box 767 Chicago, Illinois 60690

SUBJECT:

BYRON STATION, UNIT 2 and BRAIDWOOD STATION, UNIT 2 - QUALIFICATION OF BUNKER RAM 0 ELECTRICAL PENETRATIONS By letter dated February 24, 1989, you submitted the report for the Qualification Test Program of the Bunker Ramo instrument penetration assemblies used in Byron Station, Unit 2 and Braidwood Statien, Unit 2. In our March 15, 1989 letter, we stated that, based on our initial review, we agreed with your conclusion that the assemblies are environmentally qualified to perform their intended functions for Braidwood 2. However, we also stated that our detailed review of the report had not been completed.

We have now completed our detailed review and still conclude that the Bunker Ramo instrument penetration assemblies are environmentally qualified to perform their intended functions. Furthermore, as noted in your March 15 letter, the design and installation at Byron 2 is the same as at Braidwood 2. Therefore, we conclude that the assemblies at Byron 2 are also environmentally qualified to perform their intended function. Thus, the concerns expressed in our January 31, 1989 concerning Byron 2 have been satisfied and we agree that there is no need to replace these assemblies at Byron 2.

5 Daniel R. Muller, Director Project Directorate III-2 Division of Reactor Projects III, IV, V, and Special Projects cc: See next page DISTRIBUTION Docket file NRC & Local PDRs PDIII-2 r/f LMuller MVirgilio SSands L01shan LLuther EJordan BGrimes ACRS (10)

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