ML18036B330

Forwards SE Accepting Util 921229 Response to NRC Jan 1991 Request for Util to Establish Derating Factors for Cable Tray Covers Between 6 & 10 Ft Long & to Take Necessary Corrective Actions Before End of First Refueling Outage

ML18036B330
Person / Time
Site:	Browns Ferry
Issue date:	06/23/1993
From:	Hebdon F Office of Nuclear Reactor Regulation
To:	Medford M Tennessee Valley Authority
Shared Package
ML18036B331	List: ML18036B330 ML18036B332
References
TAC-M85714 NUDOCS 9306280161
Download: ML18036B330 (4)

Text

Docket No. 50-260 June 23, 1993 Dr. Mark 0. Hedford, Vice President Technical Support Tennessee Valley Authority 3B Lookout Place 1101 Market Street Chattanooga, Tennessee 37402-2801

SUBJECT:

DERATING FACTORS FOR CABLE TRAY COVERS BETWEEN 6 AND 10 FEET LONG-BROWNS FERRY NUCLEAR PLANT (TAC NO. H85714)

In NUREG-1232, Volume 3, Supplement 2, dated January 1991, the NRC staff requested the Tennessee Valley Authority (TVA) to establish derating factors for cable tray covers between 6 and 10 feet long, and to take necessary corrective actions, before the end of the first refueling outage following restart of Browns Ferry Nuclear Plant (BFN), Unit 2.

TVA responded to the staff's request by letter dated December 29, 1992.

The enclosed safety evaluation finds TVA's response acceptable, and hence, the staff's concern regarding derating factors for cable tray covers between 6 and 10 feet long is considered resolved.

Sincerely, Original signed by Thierry H. Ross for Frederick J.

Hebdon, Director Project Directorate II-4 Division of Reactor Projects I/II Office of Nuclear Reactor Regulation

Enclosure:

Safety Evaluation cc w/enclosure:

See next page Distribution Docket Fi:le BFN Reading G. Lainas B. Clayton J. Williams ACRS (10)

P. Kello

, RII NRC

& Local PDRs S.

Varga F.

Hebdon T. Ross OGC E. Herschoff, RII R. Crlenjak, RII OFFICE NAME DATE PDI I-4/LA BClayton

/ /93 PD II-4/PH TRoss:as PDII-4 PH JWilliam

/27/93 PDI I-4/D FHebdon yzg93 DOCUMENT NAME: G:iBLNiGL92-01.BFN 9306280161 930623 PDR ADOCK 05000260;(

t P

PDR

0

~I

'l C

ij4!'994~:."~

J C.

Tennessee.

Valley 'Authority ATTN:

Dr. Hark 0. Hedford

.Browns Ferry Nuclear Plant CC:

Hr.

W. H. Kennoy, Director Tennessee Valley Authority ET 12A 400 West Summit Hill Drive Knoxville, Tennessee 37902 Hr. R.:H. Eytchison, Vice President, Nuclear Operations Tennessee Valley Authority 3B Lookout Place 1101 Market Street Chattanooga, Tennessee 37402-2801 Site Licensing Manager Browns Ferry Nuclear, Plant Tennessee Valley Authority P.O.

Box 2000

Decatur, Alabama 35609-2000 Hr. 0. J. Zeringue, 'Vice President Browns Ferry Nuclear Plant Tennessee Valley Authority P.O.

Box 2000 Decatur,, Alabama 35609-2000 Hr. B. S. Schofield, Manager Nuclear 'L'icensing and Regulatory Affairs Tennessee Valley Authority 5B Lookout Place 1101 Market Street Chattanooga, Tennessee

'37402-2801 TVA Representative Tennessee Valley Authority 11921 Rockvil le Pike Suite 402 Rockville, Maryland 20852 General Counsel Tennessee Valley Authority

'ET llH 400 West Summit Hil.l Drive Knoxville, Tennessee 37902 Chairman,.

Limestone. County Commission P.O.

Box 188

Athens, Alabama 35611 State Health Officer Alabama Dept. of Public Health 434 Monroe Street Montgomery, Alabama 36130-1701 Regional Administrator U.S.N.R.C.

Region II 101 Harietta Street, N.W.

. Suite 2900 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

Manager, Nuclear Assurance and Licensing Browns Ferry Nucl'ear Plant Tennessee Valley Authority P. 0.

Box. 2000

Decatur, Alabama 35609-2000