ML20058K222
| ML20058K222 | |
| Person / Time | |
|---|---|
| Site: | Browns Ferry  |
| Issue date: | 12/07/1993 |
| From: | Williams J Office of Nuclear Reactor Regulation |
| To: | Medford M Tennessee Valley Authority |
| Shared Package | |
| ML20058K226 | List: |
| References | |
| TAC-M80618, TAC-M80619, TAC-M80620 NUDOCS 9312150004 | |
| Download: ML20058K222 (3) | |
Text
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December 7, 1993 Docket Nos. 50-259, 50-260, and 50-296 Dr. Mark 0. Medford, Vice President Technical Support Tennessee Valley Authority 3B Lookout Place 1101 Market Street Chattanooga, Tennessee 37402-2801
Dear Dr. Medford:
SUBJECT:
BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 - SUPPLEMENTAL SAFETY EVALUATION OF STRUCTURAL STEEL THERMAL GROWTH DESIGN CRITERIA (TAC N05. M80618, M80619, AND M80620)
I By letter dated June 12, 1991, the Tennessee Valley Authority (TVA) submitted its proposed long-term steel design criteria for the Browns Ferry Nuclear Plant (BFN), Units 1, 2, and 3.
The NRC staff provided a safety evaluation with open items on July 13, 1992. TVA responded to these open items on July 31, 1992.
The staff provided a supplemental SER on October 29, 1992 closing out all open items with the exception of the proposed usage of a ductility ratio. The staff's position on this topic was documented in a letter dated March 19, 1992.
After extensive correspondence, meetings, and telephone conferences between TVA and the staff, on June 29, 1993 TVA provided supplemental information which stated that ductility ratios would not be applied to steel structural design except for hardship cases. As documented in the enclosed Safety Evaluation, the staff accepts TVA's proposal as consistent with the staff's established position. However, TVA is required to inform the staff when a ductility ratio criterion is applied to a hardship case.
Staff review of the BFN steel design criteria is complete.
To verify conformance with the criteria accepted by the staff, the staff plans to conduct a site audit of selected BFN steel structural design calculations.
I will coordinate this audit with your staff when our plans are completed.
Please contact me at (301)504-1470 if you have any questions in this matter.
9312150004 931207 Original signed by hDR ADOCK 0500 9
Joseph F. Williams, Project Manager Project Directorate 11-4 Division of Reactor Projects - I/II 090032 Orfice of Nuclear Reactor Regulation
Enclosure:
Supplemental Safety Evaluation
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cc w/ enclosure:
See next page PDII-4/PMh/
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PDII-4/LA PDII-4/PM PDIH4/D NAME:
BClaykp JWilliamsf DTrimble FHetibon DATE:
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Tennessee Valley Authority BROWNS FERRY NUCLEAR PLANT ATTN: Dr. Mark 0. Medford CC:
Mr. Craven Crowell, Chairman TVA Representative Tennessee Valley Authority Tennessee Valley Authority ET 12A 11921 Rockville Pike, Suite 402 400 West Summit Hill Drive Rockville, MD 20852 Knoxville, TN 37902 General Counsel Mr. W. H. Kennoy, Director Tennessee Valley Authority Tennessee Valley Authority ET 11H ET 12A 400 West Summit Hill Drive 400 West Summit Hill Drive Knoxville, TN 37902 Knoxville, TN 37902 Chairman Mr. Johnny H. Hayes, Director Limestone County Commission Tennessee Valley Authority P.O. Box 188 ET 12A Athens, AL 35611 400 West Summit Hill Drive Knoxville, TN 37902 State Health Officer Alabama Department of Public Health Mr. R. M. Eytchison, Vice President 434 Monroe Street Nuclear Operations Montgomery, AL 36130-1701 Tennessee Valley Authority 3B Lookout Place Regional Administrator 1101 Market Street U.S. Nuclear Regulatory Commission Chattanooga, TN 37402-2801 Region II 101 Marietta Street, NW., Suite 2900 Mr. Pedro Salas Atlanta, GA 30323 Site Licensing Manager Browns Ferry Nuclear Plant Mr. Charles Patterson Tennessee Valley Authority Senior Resident Inspector P.O. Box 2000 Browns Ferry Nuclear Plant Decatur, AL 35602 U.S. Nuclear Regulatory Commission Route 12, Box 637 Mr. O. J. Zeringue, Vice President Athens, AL 35611 Browns Ferry Nuclear Plant Tennessee Valley Authority Mr. T. D. Shriver P.O. Box 2000 Site Quality Manager Decatur, AL 35602 Browns Ferry Nuclear Plant Tennessee Valley Authority Mr. B. S. Schofield, Manager P.O. Box 2000 1
Nuclear Licensing and Regulatory Affairs Decatur, AL 35602
)
Tennessee Valley Authority i
4G Blue Ridge Mr. D. E. Nunn, Vice President 1101 Market Street Tennessee Valley Authority Chattanooga, TN 37402-2801 3B Lookout Place 1101 Market Street Chattanooga, TN 37402-2801 1
- 2 011trj> tion Docket File NRC & Local PDRs BFN Reading S. Varga G. Lainas F. Hebdon B. Clayton J. Williams D. Trimble S. B. Kim OGC ACRS (10)
E. Herschoff, RII P. Kellogg, Ril J. Crlenjak, RII cc:
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