ML17264A238
| ML17264A238 | |
| Person / Time | |
|---|---|
| Site: | Ginna  |
| Issue date: | 11/22/1995 |
| From: | Mecredy R ROCHESTER GAS & ELECTRIC CORP. |
| To: | Andrea Johnson NRC (Affiliation Not Assigned), NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| Shared Package | |
| ML17264A239 | List: |
| References | |
| NUDOCS 9511270292 | |
| Download: ML17264A238 (10) | |
Text
P R.ICDR.IWY'ACCELERATED RIDS PROCESSING REGULATORY INFORMATION DISTRIBUTION SYSTEM (RIDS)
ACCESSION NBR:9511270292 DOC.DATE: 95/11/22 NOTARIZED: NO DOCKET FACIL:50-244 Robert Emmet Ginna Nuclear Plant, Unit 1, Rochester G
05000244 AUTH.NAME AUTHOR AFFILIATION MECREDY,R.C.
Rochester Gas 6 Electric Corp.
RECIP.NAME RECIPIENT AFFILIATION JOHNSON,A.R.
P
SUBJECT:
Forwards revised Draft B of "Core Operating Limits Rept, Cycle 25."
DISTRIBUTION CODE:
A001D COPIES RECEIVED:LTR i ENCLj SIZE: ( e TITLE: OR Submittal:
General Distribution NOTES:License Exp date in accordance with 10CFR2,2.109(9/19/72).
0 05000244 R
RECIPIENT ID CODE/NAME PD1-1 LA JOHNSON,A INTERNAL~~ZEE QBNTER 02
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1 RECIPIENT ID CODE/NAME PD1-1 PD NRR/DE/EMCB NRR/DSSA/SPLB NUDOCS-ABSTRACT NRC PDR COPIES LTTR ENCL 1
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NOTE TO ALL"RIDS" RECIPIENTS:
PLEASE HELP US TO REDUCE iVASTE!CONTACI'TfIE DOCUMENTCOB TROL DESK, ROOM Pl-37 (EXT. 504-2083 ) TO ELlliflNATEYOUR. JA!iIE PRO%I DISTRIBUTIONLISTS f'R DOCUMENTS YOU DON"I'EED!
TOTAL NUMBER OF COPIES REQUIRED:
LTTR 12 ENCL 11
AND ROCHESTER GASANDEIECTRIC CORPORATION ~ 89 EASTAVENUE, ROCHESTER, N. Y ld6d9-0001 AREA CODE7I6 5I6-2700 ROBERT C. MECREDY Vice President Nvcteor operations November 22, 1995 U.S. Nuclear Regulatory Commission Document Control Desk Attention:
Mr. Allen R. Johnson Project Directorate I-1 Washington, D.C. 20555
Subject:
Conversion to Improved Technical Specifications, Core Operating Limits Report (COI.R)
Rochester Gas &Electric Corporation R.E. Ginna Nuclear Power Plant Docket No. 50-244
References:
(a)
Letter from R.C. Mecredy, RGB', to A.R. Johnson, NRC,
Subject:
ApplicationforAmendment to Facility Operating LI'cense, Conversion to Improved Technical Specifications, dated May 26, 1995.
Dear Mr. Johnson,
As part of the conversion to Improved Standard Technical Specifications, RGRE has proposed to implement a COLR for parameters which can be expected to change on a refueling cycle basis (Ref. (a)). Based on the NRC review ofthe proposed COLR, RGRE has agreed to make several changes to the previously submitted documentation.
Therefore, enclosed please find a revised copy ofthe following:
a.
Justification for relocating the departure from nucleate boiling (DNB) and shutdown bank insertion limits to the COLR (previously Ref. (a), Attachment A) (Attachment I);
b.
Proposed COLR (previously Ref. (a), Attachment F) (Attachment II); and c.
Administrative Controls technical specifications (previously Ref. (a), Attachment C)
(Attachment III).
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RGB believes that this resolves all open items related to the COLR. Please direct any additional questions related to these issues to Mark Plaherty at (716) 724-8512.
Very truly yours, Robert C. Mecredy MDI'"7780 attachments xc:
U.S. Nuclear Regulatory Commission Mr. Allen R. Johnson (Mail Stop 14B2)
PWR Project Directorate I-1 Washington, D.C. 20555 U.S. Nuclear Regulatory Commission (w/o attachment)
Mr. Carl Schulten (Mail Stop 011E22)
Office ofTechnical Specifications Branch Washington, D.C. 20555 U.S. Nuclear Regulatory Commission Region I 475 Allendale Road King ofPrussia, PA 19406 Ginna Senior Resident Inspector
Attachment I Revised Justifications for Locating Parameters in the COLR
Departure from Nucleate Boiling (DNB) Parameters The pressurizer pressure, RCS average temperature, and RCS total flowrate limits have been placed in the COLR instead ofproviding the actual values in the LCO. This change was made for the followingreasons:
These parameters are an input to the core reload analyses that use generic methodology which has received NRC approval. As part ofthe conversion to 18 month cycles, RG&E is planning a revision to T,. Also, RG&Ewillbe implementing a T,, "window" beginning in 1996 such that the actual value ofT,willchange cycle to cycle.
Pressurizer pressure may also change at a future date.
2.
RCS total flowwillchange as a result ofthe replacement steam generators beginning in 1996. RG&E may elect to revise the required flowin the future ifthe predicted flow with the new steam generators provide excessive margin with respect to the measured values.
3.
RG&E currently does not have an LCO for DNB. Therefore, in order to prevent the need for additional technical specification amendments, especially related to requirements that Ginna Station currently does not have, these parameters have been moved to the COLR using previously approved methodology.
4.
The relocation ofthese parameters to the COLR is also consistent with an approved LAR for Kewaunee (Ref. 1).
Reference:
Letter from R.L. Laufer, NRC, to C.A. Schrock, WPS,
Subject:
A>nendment No. 110 to Facility Operating License No. DPR-43 (TACKo. M88374), dated August 3, 1994.
Shutdown Insertion Limits The shutdown bank insertion limithas been placed in the COLR for the followingreasons:
The definition offullwithdrawn with respect to active fuel height can change from cycle to cycle when defined in terms of "steps" due to manufacturing, measuring uncertainties, and fule rod position relative to the bottom nozzle from use ofaxial blankets, etc.
2.
NUREG-1431, Revision 1 allows this parameter to be relocated to the COLR.
3.
The current Ginna technical specifications do not have a defined value for "fully withdrawn."
Attachment II Revised COLR