ML20054G597

Application for Amend to Licenses DPR-42 & DPR-60 Changing App a Tech Spec Figure TS.3.10-7 Re Normalized Exposure Dependent Function for Exxon Nuclear Co Fuel

ML20054G597
Person / Time
Site:	Prairie Island
Issue date:	06/14/1982
From:	Musolf D NORTHERN STATES POWER CO.
To:	Office of Nuclear Reactor Regulation
Shared Package
ML20054G598	List: ML20054G597 ML20054G600
References
NUDOCS 8206220120
Download: ML20054G597 (3)

Text

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Northern States Power Company 414 Nicollet Mall Minneapolis, Minnesota 55401 Telephone (612) 330-5500 June 14, 1982 Director Office of Nuclear Reactor Regulation U S Nuclear Regulatory Commission Washington, DC 20555 PRAIRIE ISLAND NUCLEAR GENERATING PLANT Docket Nos. 50-282 License Nos. DPR-42 50-306 DPR-60 License Amendment Request dated June 14, 1982 Normalized Exposure Dependent _ Function Figure Attached are three originals and 37 conformed copies of a request for a change of Technical Specifications, Appendix A, of Operating License DPR-42 and 60. Also attached is one copy of the License Amendment class determination and a check in the amount of $4,400 for the amendment fee.

This submittal proposes changes in Figure TS.3.10-7 of the Prairie Island Technical "gecifications. Approval of these changes is requested as soon as possible since the current Figure TS.3.10-7 only identifies the -

Normalized Exposure Dependent Function up to a peak pellet exposure of 41.85 GWD/MTU. The line between (27,1.00) and (41.85, 0.878) will be conservatively (as shown in reference documents) extended to (47,0.835) and administratively adhered to until the amendment is approved.

Exhibi* A describes the proposed change, reason for change, and safety l

evaluarion. Exhibit B contains the revised Appendix A pages. Exxon l

Nucleat Company's proprietary reference, XN-NF-81-06(P), will be submitted under separate cover dated June 15, 1982 with appropriate affidavits.

An additional document is being finalized and will be submitted in the next two weeks. Ql

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Wb David Musolf Acting Head-Nuclear Support Services DMM/TMP/bd cc: Regional Admin-III, NRC NRR Resident Inspector, NRC G Charnoff MPCA Attn: J W Ferman Attachments 8206220120 820614 PDR ADOCK 05000282 P PDR

UNITED STATES NUCLEAR REGULATORY COMMISSION l

NORTHERN. STATES POWER COMPANY PRAIRIE ISLAND NUCLEAR GENERATING PLANT Docket No. 50-282 50-306 REQUEST FOR AMENDMENT TO

OPERATING LICENSE NOS. DPR-42 & 60 (License Amendment Request Dated June 14, 1982)

Northern States Power Company, a Minnesota corporation,' requests authorization for changes to the Technical Specifications as shown on the attachments ' labeled Exhibit A and Exhibit B. Exhibit A describes the proposed changes along with reasons for the change. Exhibit B is a set of Technical Specification pages-incorporating the proposed changes.

This letter contains no restricted or other defense information.

NORTHERN STATES POWER COMPANY-i

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By bd D_Nua

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M Musolf-Acting Head-Nuclear Support mvices

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) On this _k b day of_ _ _ Lu _ , Y\%_ before me a notary public in and for said County, personallyJappeared D M Musolf, Acting Head-Nuclear Support Services, and being first duly sworn acknowledged that' he is authorized to execute this document on behalf of Northern States Power Company, that he knows the contents thereof and that to the best of his knowledge, information and belief, the statements i made in it are true and that it is not interposed for delay.

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- . s EXHIBIT A Prairie Island Nuclear Generating Plant License Amendment Request - Dated June 14, 1982 Proposed Changes to the Technical Specifications Appendix A of Operating License DPR-42 and 60 -

Pursuant to 10 CFR 50.59 and 50.90, the holders of Operating License DPR-42 and 60 hereby propose the following changes to Appendix A.

Technical Specification:

Figure TS.3.10-7, Normalized Exposure Dependent Function BU(E ) for Exxon Nuclear Company Fuel.

Proposed Changes Replace present curve with one with higher exposures.

Reason for Change Peak pellet exposure is approximately at the limit of 41.85 GWD/MTU. The proposed figure will extend the curve to 50 GWD/KTU.

Safety Evaluation The proposed curve bounds operation for the Exxon fuel types with the fuel in the Prairie Island units for the present cycle exposures.

i Exxon Nuclear Company Report, XN-NF-81-06(P), justifies operation with fuel types XN-1 and XN-2 to 47 GWD/MTU. Since this report is proprietary it is being submitted under separate cover dated June 15, 1982. The documentation to support operation to 50 GWD/KTU is being prepared and will be submitted in the next two weeks. The proposed Figure TS.3.10-7 will be conservative with respect to those limits.

It is not anticipated that the TOPROD fuel will reach peak pellet exposures of over 27 GWD/HTU in the current cycles. Analyses will be performed to cover TOPROD to higher exposures. If those analyses

indicate that the proposed Figure TS.3.10-7 is non-conservative at higher TOPROD exposures another license amendment will be submitted in advance of the start the full cycle in which those Ibnits would be reached.

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