ML18033A821

Responds to NRC Which Provided Clarification on Util Use of Div of Operating Reactors Guidelines Re Electrical Cable Ampacity.Util Does Not Intend Qualifying Cables to Guidelines Required to Operate Under Criteria B

ML18033A821
Person / Time
Site:	Browns Ferry
Issue date:	07/07/1989
From:	Michael Ray TENNESSEE VALLEY AUTHORITY
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
TAC-62260, NUDOCS 8907120083
Download: ML18033A821 (6)

Text

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, REGULATORY INFORMATION DISTRIBUTION SYSTEM (RIDS)

ACCESSION NBR:8907120083 DOC.DATE: 89/07/07 NOTARIZED: NO.

FACIL:50-260 Browns Ferry Nuclear Power station, Unit 2, Tennessee AUTH.NAME AUTHOR AFFILIATION RAY,M.J.

Tennessee Valley Authority RECIQ.NAME

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SUBJECT:

Responds to NRC 890511, ltr which provided clarification on util use of DOR guidelines re electrical cable ampacity.

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TENNESSEE VALLEYAUTHORITY CHATTANOOGA, TENNESSEE 37401 5H 157B Lookout Place JUL 07 18im U.S. Nuclear Regulatory Commission ATTN:

Document Control Desk Washington, D.C.

20555 Gentlemen:

In the Matter of Tennessee Valley Authority Docket No. 50-260 BROMNS FERRY HUCLEAR PLANT (BFH) ELECTRICAL CABLE AMPACITY (TAC 62260)

This letter is in response to HRC's letter of May ll, 1989 which provided clarification on TVA's use of the Division of Operating, Reactors (DOR) guidelines.

This clarification was provided in response to TVA's letter of February 21, 1989.

HRC provided clarification of item a. of the enclosure to this letter as follows:

"the cable does not have to operate during the accident (includes post.-accident operating requirements) that creates the transients in excess of 205 F."

This clarification expresses the orig,inal intent of the TVA position.

HRC also provided clarification on item b. of the enclosure and requested TVA.

to provide the temperatures,

times, and locations in the reactor building during which ambient temperatures will exceed 205 F.

BFH does not currently intend on qualifying any cables to the DOR guidelines which would be required to operate under the condition stated in criteria b, Therefore, there is no need for TVA to provide this information.

Please refer any questions concerning this submittal to Patrick Carier, BFN Licensing, (205) 729-3570.

Very truly yours, TENNESSEE VALLEY AUTHORITY Manage Nucle Licensing and Regulatory Affairs cc:

See page 2

S907120QS3 85'0707 PDR 4DOCK 05000260 P

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V~\\I U.S. Huclear Regulatory Commission UL 97 1989 I

cc:

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C. Black, Assistant Director for Projects TVA Projects Division U.S. Huclear Regulatory Commission One Mhite Flint, Horth 11555 Rockville Pike Rockville, Haryland 20852 Nr. B. A. Milson, Assistant Director for Inspection Programs TVA Projects Division U.S. Huclear Regulatory Commission Region II 101 Harietta Street,

%l, Suite 2900 Atlanta, Georgia 30323 HRC Resident Inspector Broom Ferry Huclear Plant Route 12, Box 637

Athens, Alabama 35609-2000

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