L-96-335, Forwards Suppl Response to GL 92-08, Thermal-Lag 330-1 Fire Barriers, for Plant
| ML17229A175 | |
| Person / Time | |
|---|---|
| Site: | Saint Lucie  |
| Issue date: | 12/19/1996 |
| From: | Stall J FLORIDA POWER & LIGHT CO. |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| Shared Package | |
| ML17229A176 | List: |
| References | |
| RTR-REGGD-01.075, RTR-REGGD-1.075 GL-92-08, GL-92-8, L-96-335, NUDOCS 9612260320 | |
| Download: ML17229A175 (3) | |
Text
CATZaORr Z
REGULAT INFORMATION DISTRIBUTION TEM (RIDS) il ACCESSION NBR:9612260320 DOC.DATE: 96/12/19 NOTARIZED: NO DOCKET FACIL:50-335 St. Lucie Plant, Unit 1, Florida Power
& Light Co.
05000335 50-'389 St. Lucie Plant, Unit 2, Florida Power
& Light Co.
05000389 AUTH.NAME AUTHOR AFFILIATION STALL,J.A.
Florida Power
& Light Co.
RECIP.NAME RECIPIENT AFFILIATION Document Control Branch (Document Control Desk)
SUBJECT:
Forwards supplmental response to GL 92-08, "Thermo-Lag 330-1 Fire Barriers," for plant, Units 1
& 2.
DISTRIBUTION CODE'029D COPIES RECEIVED'LTRl ENCL,l SIZE ~ 4" A ~
TITLE: Generic Letter 92~008 Thermo-Lag 330 Fire Barrier NOTES:
E RECIPIENT ID CODE/NAME PD2-3 IA WIENS,L.
COPIES'TTR E
L 1
0 1
1 RECIPIENT ID CODE/NAME PD2-3 PD COPIES LTTR ENCL 1
1 INTER FIGE CENTER HH/
PD3-1 RGN2 FILE 1
1 I
NRR/DE/EELB 1
1
- NRR/DSSA/SPLB 1
1 1
1 1
1 EXTERNAL WOAC 1
1 NRC PDR 1
1 D
0 U
N NOTE TO ALL "RIDS" RECIPIENTS:
PLEASE HELP US TO REDUCE WASTE!
CONTACT THE DOCUMENT CONTROL DESK, ROOM OWFN SD-5(EXT. 41S-2083)
TO ELIMINATE YOUR NAME FROM DISTRIBUTION LISTS FOR DOCUMENTS YOU DON'T NEED!
TOTAL NUMBER OF COPIES REQUIRED:
LTTR 10 ENCL
~
9
GEC 5 9 i996 Florida Power 5 Light Company, P.O. Box 128, Fort Pierce, FL34954-0128 L-96-335 10 CFR 50.4 10 CFR 50.
54 (f)
U. S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, D.
C.
20555 RE:
St. Lucie Units 1 and 2
Docket Nos.
50-335 and 50-389 Request for Additional Information The Florida Power. and Light Company (FPL) supplemental response to Generic Letter 92-08 "Thermo-Lag 330-1 Fire Barriers" for St. Lucie Units 1 and 2 is attached.
This submittal provides the information requested by NRC letter dated November 6,
1996.
Based on the Staff's review of FPL letters, L-96-28 dated February 12,
- 1996, and L-96-211 dated August 27,
- 1996, the NRC determined that a review of several referenced calculations was necessary.
In
- addition, since FPL has compared the Thermo-Lag configurations installed at St. Lucie with the Texas Utilities Electric Company (TUEC) tested configurations for the Comanche Peak Steam Electric Station (CPSES),
NRC requested FPL to assess any differences between the fire barrier construction at St. Lucie Plant and the fire barrier construction at CPSES.
This letter does not contain any new regulatory commitments.
Please contact us if there are any additional questions.
Very truly yours, J.
A. Stall Vice President St. Lucie Plant JAS/GRM Attachments cc:
Regional Administrator, Region II, USNRC Senior Resident Inspector, USNRC, St. Lucie Plant r
9b122b0320 qbi2i9 PDR
,,ADQCK 05000335 P
'i'"
St. Lucie Units 1 and 2
Docket Nos.
50-335 and 50-389 L-96-335 Attachment NRC Request 1:
The staff, through its examinations of other licensee submittals in this
- area, have found several errors or points of concern pertaining to heat transfer assumptions and modeling with respect to ampacity derating calculations.
Ther'efore, the staff requests that the following licensee ampacity derating calculations be provided for our review:
a ~
FPL Calculation PSL-OFJE-96-001, "Cable Derating in Conduits with Fire Barrier Coatings" B.
FPL Calculation PTN-BFJM-96-005, "Fire Barrier Ampacity Correction Factors Extrapolation of Test Results for 3-Hour Barrier" c.
FPL Evaluation JPN-PSL-SEES-96-059, "Engineering Evaluation of the Application of Thermo-Lag to Meet Regulatory Guide 1.75 Requirements St. Lucie Unit 2" FPL Response:
The requested FPL calculations and evaluations are attached.
To protect the personal privacy of the FPL individuals, the names have been removed from the approval record sheets on the attached documents.
NRC Request 2:
The licensee should confirm that all fire barrier construction for applicable configurations are representative of the barrier construction used in the Comanche Peak Steam Electric Station(CPSES)
Unit 2 ampacity derating tests (i.e.,
TUEC tests).
If there are deviations or differences between St. Lucie installed Thermo-Lag configurations and the CPSES-tested configurations, the licensee should provide an assessment of the impact on the CPSES test results that are being credited by the licensee.
FPL Response:
The requested fire barrier comparison is provided in FPL calculations PTN-BFJM-96-005, "Fire Barrier Ampacity Correction Factors Extrapolation of Test Results for 3-Hour Barrier," and PSL-OFJE-96-001, "Cable Derating in Conduits with Fire Barrier Coatings."