ML18038B479
| ML18038B479 | |
| Person / Time | |
|---|---|
| Site: | Browns Ferry  |
| Issue date: | 10/18/1995 |
| From: | Salas P TENNESSEE VALLEY AUTHORITY |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| Shared Package | |
| ML18038B480 | List: |
| References | |
| NUDOCS 9510230405 | |
| Download: ML18038B479 (10) | |
Text
PRXOKRXTY 1 (ACCELERATED RZDS PROCESSZNG)
REGULATORY INFORMATION DISTRIBUTION SYSTEM (RIDS)
ACCESSION: NBR:9510230405 DOC.DATE: 95/10/18 NOTARIZED: NO DOCKET FACIL:50-260 Browns Ferry Nuclear Power Station, Unit 2, Tennessee 05000260 P
AUTH.NAME AUTHOR AFFIL1ATION SALS,P.
Tennessee Valley Authority RECIP.NAME RECIPIENT AFFILIATION R
Document Control Branch (Document Control Desk)
SUBJECT:
Forwards GE rept GENE-B1100639-01, "Brown Ferry Steam Electric Station Unit 2 Vessel Surveillance Matls Testing Fracture Toughness Analysis," providing reactor vessel matl surveillance specimen test results for BFN Unit 2.
DISTRIBUTION CODE:
AOOSD COPIES RECEIVED: LTR ENCL $
SIZE:
( ~ V2 TITLE: OR/Licensing Submittal: Reactor Vessel Matl Surveillance Rpt App H, NOTES 0
RECIPXENT ID CODE/NAME PD2-3-PD XNTERNAL: ACRS NRR/DE/EMCB NRR/DSSA/SRXB RES/DS IR/EIB EXTERNAL: NOAC ORNL KAM,F COPIES LTTR ENCL 1
1 6,
6 1
1 1
1 1
1 1
1 1
1 RECIPIENT ID CODE/NAME WILLIAMS,J.
FILE~TER 0
'/DRPN/PAC B
OGC/HDS3 RES/MEB NRC PDR COPIES LTTR ENCL 1
1 1
1 1
1 1
0 1
1 1
1 D
0 N
NOTE,TO ALL "RZDS" RECZPZENTS:
PLEASE'ELP US TO REDUCE WASTE!
CONTACT THE DOCUMENT CONTROL
- DESK, ROOM OWFN 5DS (415-2083)
TO ELZMZNATE YOUR NAME FROM DZSTRZBUTZON LZSTS FOR DOCUMENTS YOU DON'T NEED!
TOTAL NUMBER OF COPIES REQUIRED:
LTTR 18 ENCL 17
'll
Tennessee Valley Authority. Post Office Box 2000. Decatur, Alabama 35609 October 18, 1995 U.S. Nuclear Regulatory Commission ATTN:
Document Control Desk Washington, D.C.
20555 Gentlemen:
10 CFR 50 Appendix H In the Matter of
)
Tennessee Valley Authority
)
Docket No. 50-260 BROWNS FERRY NUCLEAR PLANT (BFN) - UNIT 2 - SUBMITTAL OF E1GHT EFFECTZVE FULL POWER YEARS (EFPY)
REACTOR VESSEL MATERIAL SURVEILLANCE SPECIMEN TEST RESULTS AND DETERMINATION OF APPLICABILITYOF NEDO-32205-A REVZSION 1 TOPICAL REPORT ON UPPER SHELF ENERGY EQUIVALENT MARGIN ANALYSIS The purpose of this letter is to provide NRC with reactor vessel material surveillance specimen test results for BFN Unit 2, in accordance with 10 CFR 50, Appendix H.
TVA is also providing notification to confirm the full applicability of the topical report, NED0-32205-A, Revision 1 for BFN Unit 2.
TVA removed the first reactor vessel surveillance capsule for BFN Unit 2 on October 22, 1994.
The enclosed report summarizes the mechanical testing and fluence analysis associated with this capsule.
The report includes the data required by American Society for Testing and Materials E 185, as specified in paragraph II.B.1 of 10 CFR 50, Appendix H, and the results of all fracture toughness tests conducted on the beltline materials for irradiated and unirradiated conditions.
The report states that new pressure-temperature curves were prepared for BFN Unit 2.
However, revised pressure-temperature curves were previously calculated using material chemistries that were reported in response to Generic Letter 92-01, Reactor Vessel Structural Integrity, and embrittlement estimates that are in accordance with Regulatory Guide 1.99, Revision 2.
9510230405 95iOi8 PDR ADOCK 05000260 p
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U.S. Nuclear regulatory Commission page 2
October 18, 1995 The revised pressure-temperature curves were incorporated into the BFN Unit 2 Technical Specifications by License Amendment 239 dated September 13, 1995.
These pressure-temperature curves are consistent with those developed in the enclosed report.
Therefore, no further action is required.
The end of life (32 EFPY) fluence prediction of 6.05xlO'/cm i;s 43 percent lower than the previously established l.lx10 ~n/cm~.
'Therefore, TVA intends to maintain the surveillance capsule withdrawal/testing schedule currently described in the BFN Unit 2 Technical Specifications.
This schedule will withdraw test capsules every six EFPY following
,the removal of.. the eight EFPY capsule.
By letter dated May 23,
- 1994, TVA committed to confirm full applicability of the topical report, "10 CFR 50 Appendix G
Equivalent Margin Analysis for Low Upper Shelf Energy in BWR/2'hrough BWR/6 Vessels" (NED0-32205-A,. Revision 1),
within 90 days following issuance of the final surveillance capsule analysis report for each unit.
The enclosed test report was issued on July 20, 1995.
The test report (section 2.l.k 'and Appendix B') confirms that the topical report is applicable for.BFN 'Unit 2.
Consequently, TVA is requesting approval.,to use the topical report as the basis for demonstrating
'compliance with 10 CFR 50, Appendix G, Paragraph IV.A.1 for BFN Unit 2.
If you have any questions regarding this letter please contact me at (205) 729-2636.
Since y,
Pedro, Salas Manager of Site Licensing Enclosure cc:
See page 3
I~
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J U.S., Nuclear. Regulatory Commission Page
.-3 October 18, 1995 Enclosure cc (Enclosure):
Mr. Mark S. Lesser, Acting Branch Chief U.S. Nuclear Regulatory Commission Region IX 101 Marietta Street, NW, Suite 2900 Atlanta, Georgia 30323 NRC: Resident Inspector Browns Ferry Nuclear Plant 10833 Shaw Road
- Athens, Alabama 35611 Mr.. Z.
F-. Williams,, Project Manager U.S. Nuclear Regulatory Commission One, White Fl'int, North 11555 Rockvil'le Pike Rockville, Maryland 20852
4l
ENCLOSURE TENNESSEE VALLEY AUTHORITY BROWNS FERRY NUCLEAR PLANT'BFN)
UNIT 2 SUBMITTAL OF EIGHT 'EFFECTIVE FULL POWER YEARS'EFPY)
REACTOR VESSEL MATERIAL SURVEILLANCE SPECIMEN TEST REPORT (SEE ATTACHED)
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