ML18033B519

Requests Addl Info Re Tech Spec Amend Concerning Reactor Protection Sys Circuit Protector Trip Level Setpoints.Info Should Be Provided by 901024

ML18033B519
Person / Time
Site:	Browns Ferry
Issue date:	09/27/1990
From:	Ross T Office of Nuclear Reactor Regulation
To:	Kingsley O TENNESSEE VALLEY AUTHORITY
References
TAC-76898, TAC-76899, TAC-76900, NUDOCS 9010030150
Download: ML18033B519 (8)

Text

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. Docket Wos. 50-259, 50-260 and 50-296 September 27, 1990 Mr. Oliver D. Kingsley, Jr.

Senior Vice President, Nuclear Power Tennessee Valley Authority 6N 38A Lookout Place 1101 Market Street Chattanooga, Tennessee 37402-2801

SUBJECT:

RE(VEST FOR ADDITIONAL INFORMATION - BROMNS FERRY TECHNICAL SPECIFICATION AMENDMENT (TS 286)

REGARDING REACTOR PROTECTION SYSTEM CIRCUIT PROTECTOR TRIP LEVEL SETPOINTS (TAC NOS. 76898,

76899, AND 76900)

The NRC staff has reviewed Tennessee Valley Authority's (TVA) application to amend the Browns Ferry Technical Specifications (TS) dated June 4, 1990, regarding the requirements for Reactor Protection System circuit protector trip level setpoints.

As a consequence of this review, we determined that additional information from TVA will be necessary to enable the staff to complete its safety evaluation of this proposed TS amendment.

Please provide us with your response to the enclosed request for additional information (RAI) as soon as possible, but no later than October 24, 1990, in order that we can continue to support your schedule for restart of Unit 2.

If you have any questions, please call Mr. D. H. Moran, Browns Ferry Project Engineer at (301) 492-1236.

The reporting and/or recordkeeping requirements contained in this letter affect fewer than ten respondents.

Therefore, OMB clearance is not required under Public Law 96-511.

Sincerely, c...3 li a

NOO I

QO OlA OO lAO wQ OQ (9CE O

0 Original signed by Thierry M. Ross, Project Manager Project Directorate II-4 Division of Reactor Projects - I/II Office of Nuclear Reactor Regulation

Enclosure:

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ENCLOSURE REQUEST FOR ADDITIONAL INFORMATION RPS CIRCUIT PROTECTOR TRIP LEVEL SETPOINT EVALUATION TENNESSEE VAI LEY AUTHORITY BROl!NS FERRY NUCLEAR PLANT UNITS I, 2, AND 3 By letter dated June 4, 1990, TYA submitted an application to amend the Technical Specifications (TS) requirements for the Reactor Protection System (RPS) Circuit Protector Trip Level Setpoints.

The staff requests TVA to provide the following information in order to complete its evaluation.

1.

Provide an aralysis which determines worst case components for overvoltage, undervoltage, or underfrequercy.

2.

Provide the documentation fromi the manufacturer which forms the basis for the analysis in Item 1 above.

3.

The staff previously approved TS-264 on the same subiect last year.

Explair arid 'ustify the reasons for this new TS change reouest.

~V

Mr. Oliver D. Kingsley, Jr.

CC:

Mr. Marvin Runyon, Chairman Tennessee Valley Authority ET 12A 7A 400 West Summit Hill Drive Knoxville, Tennessee 37902 Mr. Edward G. Wallace

Manager, Nuclear Licensing and Regulatory Affairs Tennessee Valley Authority 5N 157B Lookout Place Chattanooga, Tennessee 37402-2801 Mr. John B. Waters, Director Tennessee Valley Authority ET 12A 9A 400 West Summit Hill Drive Knoxville, Tennessee 37902 Mr. W. F. Willis Chief'perating Officer ET 12B 16B 400 West Summit Hill Drive Knoxville, Tennessee 37902 General Counsel Tennessee Valley Authority 400 West Summit Hill Drive ET 11B 33H Knoxville, Tennessee 37902 Yr. Dwight Nunn Vice President, Nuclea'r Engineering Tennessee Valley Authority 6N 38A Lookout Place 1101 Market Street Chattanooga, Tennessee 37402-2801 Dr. Mar k 0. Medford Vice President and Nuclear Technical Director Tennessee Valley Authority 6N 38A Lookout Place Chattanooga, Tennessee, 37402-2801 Mr. 0. J. Zeringue, Site Director Browns Ferry Nuclear Plant Tennessee Valley Authority P. 0.

Box 2000

Decatur, Alabama 35602 Mr. P. Carier, Site Licensing Manager Browns Ferry Nuclear Plant Tennessee Valley Authority P. 0.

Box 2000

Decatur, Alabama 35602 Mr. L. W. Myers, Plant Yanager Browns Ferry Nuclear Plant Tennessee Valley Authority P. 0.

Box 2000

Decatur, Alabama 35602

Chairman, Limestone County Commission P. 0.

Box 188

Athens, Alabama 35611

'laude Earl Fox,,Y,.D.

State Health Officer State Department of Public Health State Office Building Montgomery, Alabama 36130 Regional Administrator, Region II U.S. Nuclear Regulatory Commission 101 Marietta Street, N.W.

Atlanta, Georgia 30323 Mr. Charles Patterson Senior Resident Inspector Browns Ferry Nuclear Plant U.S. Nuclear Regulatory Commission Route 12, Box 637

Athens, Alabama 356I1 Tennessee Valley Authority Roc kvi 1 1 e Office 11921 Rockville Pike Suite 402 Rockvi 1 le, Yaryland 20852

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Distribution NRC PDR Local PDR S. Varga G. Lainas F.

Hebdon S. Black B. Wilson P. Kellogg C. Patterson N. Krebs D. tloran T. Ross H. Garg A. Marinos OGC E. Jordan ACRS (10)

BFN Rdg. File

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