ML17292B796
| ML17292B796 | |
| Person / Time | |
|---|---|
| Site: | Summer  |
| Issue date: | 05/05/1998 |
| From: | Padovan L NRC (Affiliation Not Assigned) |
| To: | Gabe Taylor SOUTH CAROLINA ELECTRIC & GAS CO. |
| Shared Package | |
| ML17292B797 | List: |
| References | |
| GL-92-08, GL-92-8, TAC-M85610, NUDOCS 9805080208 | |
| Download: ML17292B796 (5) | |
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UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 May 5, 1998 Mr. Gary J. Taylor Vice President, Nuclear Operations South Carolina Electric 8 Gas Company VirgilC. Summer Nuclear Station Post Office Box 88 Jenkinsville, South Carolina 29065
SUBJECT:
THERMO-LAG RELATEDAMPACITYDERATING ISSUE AND COMPLETION OF LICENSING ACTION FOR GENERIC LETTER (GL) 92-08, "THERMO-LAG330-1 FIRE BARRIERS," FOR VIRGILC. SUMMER NUCLEAR STATION (TAC. NO.
M85610)
Dear Mr. Taylor:
By letters dated February 17, 1993, February 11, 1994, December 21, 1994, December 23, 1994, March 23, 1995, March 29, 1996, June 20, 1996, July 29, 1996, August 23, 1996, October 17, 1996, March 27, 1997, and May 1, 1997, you responded to GL 92-08, "Thermo-Lag 330-1 Fire Barriers," dated December 17, 1992. You also responded to our follow-up requests for additional information dated December 22, 1993, September 23, 1994, December 23, 1994, October 6, 1995, June 26, 1996, and March 17, 1997.
We have reviewed your letters. Your responses indicated that you took the following corrective actions:
~ Cable tray 3088 and conduit XX-7177A You submitted a deviation request (which we approved) for using Rockbestos Firezone R-rated cable to replace portions of the safe shutdown circuits requiring protection to meet the requirements of Appendix R to 10 CFR Part 50. You completed the installation of the 1hour Firezone cable during refueling outage 10 (1 0/97).
~ Nuclear Instrumentation (Nl) Boxed Enclosure You modified the existing NI circuits to meet the requirements of 10 CFR Part 50 Appendix R without relying on Thermo-Lag 330-1. You also rerouted the cables to meet separation criteria. This action was also completed during refueling outage 10 (10/97).
~ Conduits VUL21A This Thermo-Lag 330-) barrier was identified to be outside the scope of GL 92-08 since it (g~
services e "swing" component (the C chiller). However, yoo removed the Thermo-Leg 9805080208
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330-1 barrier from the VUL21Aconduits.
You also installed a 1-hour fire rated Gypsum board enclosure to maintain adequate circuit separation requirements for the heating, ventilation, and air conditioning system water chiller C transfer switch.
You also indicated that you replaced the Thermo-Lag 330-1 fire barriers installed at the facility for Appendix R related electrical circuits with an alternative means of protection. Accordingly, we conclude that. there are no cable ampacity derating issues due to application of Thermo-Lag fire barrier at the V. C. Summer plant. The enclosure contains our ampacity derating issues safety evaluation and conclusions.
Your February 2, 1998, letter indicated that you have implemented all corrective actions to resolve the Thermo-Lag issues at V. C. Summer.
Based on this, we have determined that you have provided the information requested in GL 92-08, and the actions tracked by NRC TAC No.
M85610 are complete.
You should retain all documentation related,to resolving Thermo-Lag 330-1 fire barrier system concerns for future NRC audits or inspections. 'ou can contact me at (301) 415-1423 ifyou have any questions.
Sincerely, (OriginaI Signed By)
L. Mark Padovan, Project Manager Project Directorate II-1 Division of Reactor Projects - I/II Office of Nuclear Reactor Regulation Docket No. 50-395
Enclosure:
As stated ccw/encl: See next page
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~Do cRee'File PUBLIC PD II-1 Reading J. Zwolinski M. Padovan E. Dunnington P. Kuo D. Oudinot A. Kugler J. Calvo T. Harris (e-mail only, TLH3) Safety Evaluations OGC ACRS J. Johnson, Region II Document Name - G:/SUMMER/SUM85610.LTR *Previously Concurred To receive a copy of this document, Indicate ln the box: "C"= Copy without attachment/enctosure "E" = Cop with attachment/enclosure "N"= No copy OFFICE PD I I -1/PN E
PDI IIRR/DE/EELB*
NRR/DE/SPLB" ActingD:PDII-IIAIIE MPadovan nnington Jca lvo Litarsh PT uo DATE 4/
/98 4/
D/98 4/21/98 4/28/98
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OFFICIAL RECORD COPY
Mr. Gary J. Taylor South Carolina Electric
& Gas Company VIRGIL C.
SUMMER NUCLEAR STATION CC:
Mr. R; J.
White Nuclear Coordinator S.C. Public Service Authority-c/o Virgil C.
Summer Nuclear Station Post Office Box 88, Mail Code 802 Jenkinsvi lie, South Carolina 29065 Resident Inspector/Summer NPS c/o U.S. Nuclear Regulatory Commission Route I, Box 64 Jenkinsville, South Carolina 29065 Regional Administrator, Region II U.S. Nuclear Regulatory Commission Atlanta Federal Center 61 Forsyth Street, SW. Suite 23T85 Atlanta, Georgia 30303 Chairman. Fairfield County Council Draw'er 60 Winnsboro, South Carolina 29180 Mr. Virgil R. Autry Director of Radioactive Waste Management Bureau of Solid & Hazardous Waste Management Department of Health. & Environmental Control 2600 Bull Street Columbia.
South Carolina 29201 J.
B.
Knotts, Jr.,
Esquire Winston
& Strawn Law Firm 1400 L Street, N.W.
Washington, D.C.
20005-3502 Mr. Robert M. Fowlkes, Manager Operations South Carolina Electric
& Gas Company Virgil C.
Summer Nuclear Station, Mail Code 303 Post Office Box 88 Jenkinsyille, South Carolina 29065 Ms. April R. Rice, Manager Nuclear Licensing
& Operating Experience South Carolina Electric
&. Gas Ccmpany Virgil C.
Summer Nuclear Station, Hail Code 830 Post Office Box 88 Jenkinsvi lie, South Carolina 29065
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