L-95-315, Submits Requirements Addressing Pressurized Thermal Shock Evaluation
| ML17228B337 | |
| Person / Time | |
|---|---|
| Site: | Saint Lucie  |
| Issue date: | 11/24/1995 |
| From: | Sager D FLORIDA POWER & LIGHT CO. |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| L-95-315, NUDOCS 9511300143 | |
| Download: ML17228B337 (4) | |
Text
PR.IC)R.I EY' ACCELERATED RIDS PROCESSING),
REGULATORY INFORMATION DISTRIBUTION SYSTEM (RIDS)
ACCESSION 'HBR:9511300143 DOC.DATE: 95/11/24 NOTARIZED: NO FACIL:50-335 St. Lucie Plant, ZJnit 1, Florida Power
& Light Co.
AUTH.NAME AUTHOR AFFILIATION SAGER,D.A.
Florida Power
& Light Co.
RECIP.NAME RECIPIENT AFFILIATION Document Control Branch (Document Control Desk)
SUBJECT:
Submits requirements addressing pressurized thermal shock evaluation.
DISTRIBUTION CODE:
A001D COPIES RECEIVED:LTR ENCL SIZE:
TITLE: OR Submittal: General Distribution NOTES DOCKET 05000335 RECIPIENT ID CODE/NAME PD2-1 LA NORRIS,J COPIES LTTR ENCL RECIPIENT ID CODE/NAME PD2-1 PD COPIES LTTR ENCL INTERNAL: ACRS NRR/DE/EMCB NRR/DSSA/SPLB NUDOCS-ABSTRACT EXTERNAL: NOAC 6
1 1
1
~RILE CENTER~0 NRR/DRCH/HICB NRR/DSSA/SRXB OGC/HDS3 NRC PDR NOTE TO ALL"RlDS" RECIPIENTS:
PLEASE HELP US TO REDUCE iVASTE!CONTACI THE DOCUMENTCONTROL DESK, ROOK I PI -37 (EXT. 504-2083 ) TO ELIllIINATEYOUR NAZI E FROil DISTRIBUTIONLISTS I:OR DOCUMENTS YOU DON"I'LED!
TOTAL NUMBER OF COPIES REQUIRED:
LTTR 18 ENCL 17
0 P.O. Box 128, Ft. Pierce, FL 34954-0128 NOV 2 4 lgg5 L-95-315 10 CFR 50.4 U. S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, D. C.
20555 RE:
St. Lucie Unit 1
Docket No. 50-335 Pressurized Thermal Shock Evaluation In a telephone call on October 17,
- 1995, NRC requested FPL to submit the bases for not providing the Pressurized Thermal Shock (PTS) evaluation with the proposed license amendment to extend the period of applicability for the existing St.
Lucie Unit 1
P-T limits curve.
10 CFR 50.61 as issued in May 1991, requires a
PTS evaluation and submittal at the next update of the pressure temperature (P-T) limits; the next reactor materials surveillance report; or five years from the effective date of the rule; which ever comes first.
In addition, an update to the PTS submittal is required whenever there is a significant change in the projected values of RT~, or upon a request for a
change in the facility operating license expiration date.
Each of these requirements is addressed below:
1)
In June
- 1995, FPL requested a license amendment to extend the period of applicability for the existing St. Lucie Unit 1 P-T limits from 15 effective full power years (EFPY) to 23.6 EFPY.
There have been no changes to the curve "limits" since 1988.
2)
The last materials surveillance report for St. Lucie Unit 1
was in February 1991.
There has been no surveillance capsule activity for Unit 1 since then.
3)
Five years from the effective date of the rule is May 1996.
4)
FPL has affirmed, through our response to NRC Generic Letter 92-01 Supplement 1, Revision 1, that the end of life RTFr, for St.
Lucie Unit 1 is more than 30'F below the screening criteria.
5)
The last change in the facility operating license expiration date was made by Amendment 82 issued on July 8, 1987.
In summary, since there were no changes to the curve "limits", just to the term of applicability, FPL did not consider this to trigger the "update" requirement.
FPL interpreted this requirement to imply a technical change to the limits or a recalculation of the curves.
9511300143 951124 PDR 'DOCK '05000335 PDR an FPL Group company aors
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L-95-315 St.- Lucie Unit 1 Docket No. 50-335 Pressurized Thermal Shock Evaluation FPL is planning to incorporate sister plant data into our PTS submittal and is in the process of obtaining and verifying the appropriate temperature data.
Sister plant information was available only recently with the consolidation of the NRC Generic Letter (GL) 92-01 Rev 1 responses into the NRC database.
We are on schedule to meet the May 1996 requirement for PTS submittals for both units and intend to meet that schedule.
Please contact us if there are any questions about this submittal.
Very truly yours,
<Qd D. A.
ager Vice P esident St.
L cie Plant DAS/GRM cc:
Stewart D. Ebneter, Regional Administrator, Region II, USNRC Senior Resident Inspector, USNRC, St. Lucie Plant