ML20199G805
| ML20199G805 | |
| Person / Time | |
|---|---|
| Site: | South Texas  |
| Issue date: | 01/19/1999 |
| From: | Alexion T NRC (Affiliation Not Assigned) |
| To: | Cottle W HOUSTON LIGHTING & POWER CO. |
| Shared Package | |
| ML20199G808 | List: |
| References | |
| GL-92-08, GL-92-8, TAC-MA3390, TAC-MA3391, NUDOCS 9901250028 | |
| Download: ML20199G805 (3) | |
Text
o 1
Mr. William T. Cottle January 19, 1999 President and Chief Executive Officer STP Nuclear Operating Company South Texas Project Electric Generating Station P. O. Box 289
{
Wadsworth, TX 77483
SUBJECT:
THERMO-LAG RELATED AMPACITY DERATING ISSUES FOR SOUTH TEXAS PROJECT, UNITS 1 AND 2 (STP) (TAC NOS. MA3390 AND MA3391)
Dear Mr. Cottle:
By letter dated July 7,1997, you submitted a response to the Nuclear Regulatory Commission's (NRC's) May 9,1997, Request for Additional Information related to Generic Letter 92-08, "Thermo-Lag 330-1 Fire Barriers," for STP, specifically in the area of ampacity derating. The NRC staff, in conjunction with its contractor, Sandia National Laboratories (SNL), has completed its review of your analytical approach for ampacity derating determinations. The results of the review are documented in the enclosed Safety Evaluation (Enclosure 1) and SNL Technical Letter Report, "A Supplemental Technical Evaluation of the South Texas Project Analysis of Cable Ampacity Limits," dated November 6,1997 (Enclosure 2).
Based on its review, the staff concludes that there are no significant safety hazards associated with the application of your ampacity derating methodology for STP.
Sincerely, ORIGINAL SIGNED BY:
Thomas W. Alexion, Project Manager Project Directorate IV-1 Division of Reactor Projects lil/IV Office of Nuclear Reactor Regulation Docket Nos. 50-498 and 50-499
Enclosures:
As stated cc w/encis: See next page DISTRIBUTIO_N:
Docket Filei PUBLIC PD4-1 r/f DPowers EAdensam (EGA1)
JHannon CHawes RBywater TAlexion OGC ACRS TGwynn, RIV THarris (TLH3)
JZwolinski i
Document Name: LTRA3390.WPD C
{k OFC PM/PA4W LA/PD4-1 D/PD4{
bk NAME TAleT CHa JHannon fl h/99 I/b /99 ff DATE
/99 gpp hO
[YN/NO WCIAL RECORD COPY ~
{}h h COPY YES/NO
.nnnn 9901250028 990119 PDR ADOCK 05000498 P
__._____.___a
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h UNITED STATES s
j NUCLEAR REGULATORY COMMISSION 2
WASHINGTON, D.C..annan anni
\\*****/
January 19, 1999 i
Mr. William T. Cottle President and Chief Executive Officer STP Nuclear Operating Company South Texas Project Electric Generating Station P. O. Box 289 Wadsworth,TX 77483
SUBJECT:
THERMO-LAG RELATED AMPACITY DERATING ISSUES FOR SOUTH TEXAS PROJECT, UNITS 1 AND 2 (STP) (TAC NOS. MA3390 AND MA3391)
Dear Mr. Cottle:
By letter dated July 7,1997, you submitted a response to the Nuclear Regulatory Commission's (NRC's) May 9,1997, Request for Additional Information related to Generic Letter 92-08, "Thermo-Lag 330-1 Fire Barriers," for STP, specifically in the area of ampacity derating. The NRC staff, in conjunction with its contractor, Sandia National Laboratories (SNL), has completed its review of your analytical approach for ampacity derating determinations. The results of the review are documented in the enclosed Safety Evaluation (Enclosure 1) and SNL Technical Letter Report,"A Supplemental Technical Evaluation of the South Texas Project Analysis of Cable Ampacity L!mits," dated November 6,1997 (Enclosure 2).
Based on its review, the staff concludes that there are no significant safety hazards associated with the application of your ampacity derating methodology for STP.
i Sincerely,
\\$4l h
l Thomas W. Alexion, Project Manager Project Directorate IV-1 Division of Reactor Projects lil/IV Office of Nuclear Reactor Regulation Docket Nos. 50-498 and 50-499
Enclosures:
As stated cc w/encls: See next page
Mr. William T. Cottle STP Nuclear Operating Company South Texas, Units 1 & 2
)
cc:
Mr. Cornelius F. O'Keefe Jack R. Newman, Esq.
l Senior Resident inspector Morgan, Lewis & Bocklus l
U.S. Nuclear Regulatory Commission 1800 M Street, N.W.
l P. O. Box 910 Washington, DC 20036-5869 l
Bay City, TX 77414 Mr. T. H. Cloninger Vice President A. Ramirez/C. M. Canady Engineering & Technical Services l
City of Austin STP Nuclear Operating Company Electric Utility Department P. O. Box 289 721 Barton Springs Road Wadsworth,TX 77483 l
Austin,TX 78704 Office of the Governor Mr. M. T. Hardt ATTN: John Howard, Director Mr. W. C. Gunst Environmental and Natural 1
City Pubnc Service Board Resources Policy P. O. Box 1771 P. O. Box 12428 San Antonio,TX 78296 Austin, TX 78711 Mr. G. E. Vaughn/C. A. Johnson Jon C. Wood Central Power and Light Company Matthews & Branscomb P. O. Box 289 One Alamo Center Mail Code: N5012 106 S. St. Mary's Street, Suite 700 Wadsworth,TX 74483 San Antonio, TX 78205-3692 INPO Arthur C. Tate, Director Records Center Division of Compliance & Inspection 700 Galleria Parkway Bureau of Radiation Control Atlanta, GA 30339-3064 Texas Department of Health 1100 West 49th Street Regional Administrator, Region IV Austin, TX 78756 U.S. Nuclear Regulatory Commission 611 Ryan Plaza Drive, Suite 400 Jim Calloway Arlington,TX 76011 Public Utility Commission of Texas Electric Industry Analysis D. G. Tees /R. L. 83alcom P. O. Box 13326 Houston Lighting & Power Co.
Austin, TX 78711-3326 P. O. Box 1700 Houston,TX 77251 Judge, Matagorda County Matagorda County Courthouse l
1700 Seventh Street l
Bay City, TX 77414 i