ML20065K152

Forwards Revised Page 4-15 of Rept NSPNAD-8608-A, Reload SE Methods for Application to Monticello Nuclear Generating Plant, Incorporating Time Varying Axial Power Shape Methodology,For Approval

ML20065K152
Person / Time
Site:	Monticello
Issue date:	04/12/1994
From:	Richard Anderson NORTHERN STATES POWER CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
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ML20065K161	List: ML20065K152 ML20065K162
References
NUDOCS 9404190200
Download: ML20065K152 (1)

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I Northem States Power Company 414 Nicollet Mall Minneapolis, Minnesota 55401 1927 Telephone (612) 330 5500 April 12, 1994 U S Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 20555 MONTICELLO NilCLEAR GENERATING PLANT Docket No. 50-263 License No. DPR-22 Reauest for_SEPI.9 Val of ROY1sion 2 of NSPNAD 8608-A The current approved reload safety evaluation methods for Monticello are described in NSPNAD 8608-A, " Reload Safety Evaluation Methods for Application to the Monticello Nuclear Generating Plant" Revielon 1. The Revision 1 methodology applies a constant power shape for pressure transients. NSP has determined, however, that a " time varying axial power shape" (TVAPS) is more realistic and more conservative (i.e. more restrictive) for pressure transients. In order to utilize this more conservative methodology, the

, results of TVAPS anelysis have been administrative 1y implemented in the current Cycle 16.

It is desired to update NSPNAD 8606-A to reflect TVAPS prior to startup of Cycle 17 which is scheduled for October, 1994. The two attachments show the changes required to incorporate the TVAPS methodology as Revision 2 to NSPNAD 8608-A. Attachment 1 is a markup of page 4-15 of the topical and Attachment 2 le a typed page that constitutes Revision 2. Your approval of Revision 2 of NGPNAD 8608-A is hereby requested.

Please contact Hel opstad at 612-337-2038 if you have any questions related to this submittal.

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. $/W Rdger O Anderson Director Licensing and Management Issues c Regional Administrator-III, NRC NRR Project Mgr, NRC NRC Resident Inspector J Silberg I

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