ML20247G852
| ML20247G852 | |
| Person / Time | |
|---|---|
| Site: | Sequoyah  |
| Issue date: | 07/21/1989 |
| From: | Black S Office of Nuclear Reactor Regulation |
| To: | Kingsley O TENNESSEE VALLEY AUTHORITY |
| Shared Package | |
| ML20247G855 | List: |
| References | |
| TAC-R00386, TAC-R00387, TAC-R386, TAC-R387, NUDOCS 8907280197 | |
| Download: ML20247G852 (2) | |
Text
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July 21, 1989 4
Docket Nos. 50-327 Distribution L. Watson and 50-328 e Docket; File J. Brady NRC PDR J. Donohew SQN Reading B. Grimes ADSP Reading E. Jordan Mr. Oliver D. Kingsley, Jr.
D. Crutchfield ACRS(10)
Senior Vice President, Nuclear Power B. D. Liaw GPA/CA Tennessee Valley Authority S. Black H. Garg 6N 38A Lookout Place R. Pierson E. Marinos 1101 Market Street B. Wilson M. Simms l
l Chattanooga, Tennessee 37402-2801
- r. Quay
Dear Mr. Kingsley:
SUBJECT:
SILICONE RUBBER INSULATED CABLE 40_ YEAR ENVIRONMENTAL QUALIFICATION TEST (TAC NOS. R00386/R00387) - SEQUOYAH NUCLEAR PLANT, UNITS 1 AND 2 The staff reviewed the employee concern issue of cable installation at Sequoyah for the restart of Units 1 and 2 from their extended outages of 1985 to 1988.
The staff concluded that the installed cable was adequate for the restart of the units. The staff's evaluation is in Volume 2 of NUREG-1232 for Unit 2 and in Supplement 1 to Volume 2 of NUREG-1232 for Unit 1.
These evaluations were i
issued in the staff's letters dated May 18, 1988 and February 3, 1989, respectively.
1 For silicone rubber insulated cable, the Tennessee Valley Authority (TVA), by letter dated December 28, 1987, documented its basis for concluding that the i
silicone rubber insulated cables installed at Sequoyah are adequate to perform l
their intended function. The staff accepted this basis because the Wyle Laboratory tests represented a partial environmental qualification (EQ) of the Anaconda and Rockbestos cables at Sequoyah for a period of 10 years.
These tests provided sufficient margin for the startup of the units. TVA agreed to conduct j
40-year EQ tests on the Anaconda and Rockbestos cables and submit the data to the staff.
In a letter dated March 13, 1989, TVA submitted the EQ Test Report No. 18056-1,
" Qualification Test Program for Silicone Rubber Insulated Cables For Use In Tennessee Valley Authority's Sequoyah and Watts Bar Nuclear Plants," prepared by Wyle Laboratory.
Based on the enclosed Safety Evaluation, the staff concludes that both the Anaconda and Rockbestos cables at Sequoyah are environmentally qualified for their intended function at Sequoyah for 40 years.
Sincerely,igned by Original s Suzanne Black, Assistant Director for Projects i
l 890728o197 890721 TVA Projects Division ADOCK 0300 7
gDR Office of Nuclear Reactor Regulation
Enclosure:
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Mr. Oliver D. Kingsley, Jr. !
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General Counsel Mr. Kenneth M. Jenison Tennessee Valley Authority Senior Resident Inspector 400 West Summit Hill Drive Sequoyah Nuclear Plant ET 118 33H U.S. Nuclear Regulatory Commission i
Knoxville, Tennessee 37902 2600 Igou Ferry Road l
Mr. F. L. Moreadith Vice President, Nuclear Engineering Mr. Michael H. Mobley, Director Tennessee Valley Authority Division of Radiological Health 400 West Summit Hill Drive T.E.R.R.A. Building, 6th Floor i
WT 12A 12A 150 9th Avenue North Knoxville, Tennessee 37902 Nashville, Tennessee 37219-5404 l
Dr. Mark 0. Medford Dr. Henry Myers, Science Advisor Vice President and Nuclear Committee on Interior o
Technical Director and Insular Affairs i
Tennessee Valley Authority U.S. House of Representatives 6N 38A Lookout Place Washington, D.C.
20515 Chattanooga, Tennessee 37402-2801 Tennessee Valley Authority Manager, Nuclear Licensing Rockville Office and Regulatory Affairs 11921 Rockville Pike Tennessee Valley Authority Suite 402 SN 1578 Lookout Place Rockville, Maryland 20852 Chattanooga, Tennessee 37402-2801 Mr. John L. LaPoint Site Director Sequoyah Nuclear Plant Tennessee Valley Authority P. O. Box 2000 Soddy Daisy, Tennessee 37379 Mr. M. Burzynski i
Acting Site Licensing Manager j
Sequoyah Nucledr Plant P. O. Box 2000 Soddy Daisy, Tennessee 37379 County Judge Hamilton County Courthouse Chattanooga, Tennessee 37402 Regional Administrator, Region II i
U.S. Nuclear Regulatory Commission 101 Marietta Street, N.W.
Atlanta, Georgia 30323 4
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