ML18036A660

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Forwards Safety Evaluations Re Electrical Cable Installation Issues & Electrical Cable Separation Issues,Per Util 910510 Submittal of Corrective Action Plans to Resolve Subj Electrical Issues.Addl Details Need to Be Submitted to NRC
ML18036A660
Person / Time
Site: Browns Ferry  Tennessee Valley Authority icon.png
Issue date: 04/08/1992
From: Williams J
Office of Nuclear Reactor Regulation
To: Medford M
Tennessee Valley Authority
Shared Package
ML18036A661 List:
References
TAC-M80681, TAC-M80682 NUDOCS 9204210011
Download: ML18036A660 (6)


Text

Docket Nos.

50-259 and 50-296 April 8, 1992 Tennessee Valley Authority ATTN:

Dr. Hark 0. Hedford, Vice President Nuclear Assurance, Licensing and Fuels 3B Lookout Place 1101 Market Place Chattanooga, Tennessee 37402-2801

Dear Dr. Hedford:

SUBJECT:

SAFETY EVALUATION OF TVA PLANS TO RESOLVE ELECTRICAL CABLE INSTALLATION AND SEPARATION ISSUES FOR THE BROWNS FERRY NUCLEAR PLANT UNITS 1

AND 3 (TAC NOS.

H80681 AND H80682)

By letter dated Hay 10, 1991, the Tennessee Valley Authority (TVA) submitted its corrective action plans to resolve electrical cable installation and separation concerns for the Browns Ferry Nuclear Plant (BFN), Units 1 and 3.

TVA met with the NRC staff on December 4,

1991, to discuss these plans.

The NRC staff has reviewed TVA's corrective action plans and concludes that when properly implemented, these plans are sufficient to resolve the specific electrical cable installation and separation issues at BFN Units 1 and 3.

The enclosed safety evaluations support the staff's determination that these corrective action plans are acceptable.

However, TVA did not provide sufficient information for the staff to complete its safety evaluation regarding the specific issue of cable separation discrepancies associated with cables in divisional and non-divisional cable trays that are physically connected.

TVA is requested to submit for staff review the details of its corrective actions to resolve this type of cable separation discrepancy for Units 1 and 3, especially with regard for those cases that were previously resolved for restart of Unit 2 by simply opening breakers.

Please contact me at (301) 504-1470 if you have any questions regarding these safety evaluations.

Sincerely, Original signed by IIiip<ig piI8 I> IIIhlWi)+(Q'i~~ plgipp Joseph F. Williams, Project Manager Project Directorate II-4 Division of Reactor Projects - I/II Office of Nuclear Reactor Regulation

Enclosures:

1.

Safety Evaluation on Electrical Cable Installation Issues 2.

Safety Evaluation on Electrical Cable Separation Issues cc w/enclosures:

See next a

e OFC NAME DATE PDII-4 LA HSanders 4

92 PDI I-4/PM JWilliams 4 $

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FHe on 4g 92 9204210011 920408 PDR ADOCK 05000259 P

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Tennessee Valley Authority Attn:

Dr. Hark 0. Hedford Browns Ferry Nuclear Plant CC:

Mr. John B. Waters, Director Tennessee Valley Authority ET 12A 400 West Summit Hill Drive Knoxville, Tennessee 37902 Hr. J.

R.

Bynum, Vice President Nuclear Operations 3B Lookout Place 1101 Market Street Chattanooga, Tennessee 37402-2801 Mr. R.

R. Baron, Site Licensing Manager Browns Ferry Nuclear Plant Tennessee Valley Authority P.O.

Box 2000

Decatur, Alabama 35602 Hr. 0. J. Zeringue, Vice President Browns Ferry Nuclear Plant Tennessee Valley Authority P.O.

Box 2000

Decatur, Alabama 35602 Mr. H. J. Burzynski, Manager Nuclear Licensing and Regulatory Affairs Tennessee Valley Authority 5B Lookout Place Chattanooga, Tennessee 37402-2801 TVA Representative Tennessee Valley Authority 11921 Rockvil le Pike Suite 402 Rockville, Maryland 20852 General Counse).

Tennessee VQ)fy Authority ET IIH 400 West Suaeit Hill Drive Knoxville, Tennessee 37902

Chairman, Limestone County Commission P.O.

Box 188

Athens, Alabama 35611 Claude Earl Fox, H.D.

State Health Officer State Dept. of Public Health State Office Building Montgomery, Alabama 36130 Regional Administrator U.S.N.R.C.

Region II 101 Marietta Street, N.W.

Atlanta, Georgia 30323 Hr. Charles Patterson Senior Resident Inspector Browns Ferry Nuclear Plant U.S.N.R.C.

Route 12, Box 637

Athens, Alabama 35611

Distrib

'o

~Docket File~

NRC PDR Local PDR S.

Varga G. Lainas F.

Hebdon C. Patterson N. Sanders J. Williams H. Sanders OGC ACRS(10)

BFN Rdg. File L. Reyes F. Ashe 14-E-4 14-H-3 15-8-18 RII 7-E-4