ML20097D404
| ML20097D404 | |
| Person / Time | |
|---|---|
| Site: | Point Beach  |
| Issue date: | 02/02/1996 |
| From: | Link B WISCONSIN ELECTRIC POWER CO. |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| VPNPD-96-008, VPNPD-96-8, NUDOCS 9602120346 | |
| Download: ML20097D404 (1) | |
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Wisconsin Electnc POWER COMPANY 231 W Michigan. PO Boa 2046. Mhaukee WL53201-2046 (414) 224 2345 l
1 VPNPD-96-00s 10CFR50.4 10CFR50.90 February 2,1996
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Document Control Desk 1
US NUCLEAR REGULATORY COMMISSION Mail Station PI 137 Washington,DC 20555 Ladies / Gentlemen:
DOCKETS 50-266 AND 50-301 TECHNICAL SPECIFICATION CHANGE REOUEST 171 HEATUP AND COOLDOWN LIMIT CURVE EXPIRATION DATE EX'ENSION RESPONSE TO REOUEST FOR ADDITIONAL INFORMATION POINT BEACH NUCLEAR PLANT. UNITS 1 AND 2 On May 26,1994, we submitted Technical Specifications Change Request 171, "Heatup and Cooldown Limit Curve Expiration Date Extension," which requested amendments to Facility Operating Licenses DPR-24 and DPR-27 for Point Beach Nuclear Plant (PBNP), Units I and 2, respectively. The proposed amendments extended the operation of both units with the current heatup and cooldown limit curves in the Technical Specifications to 23.6 effective full power years (EFPY).
In a May 11,1995 conference call, the NRC staff requested clarification of our submittal with respect to the neutron cross-section library uaed in supporting analyses. We provided information applicable to Point Beach Unit 2 in a letter dated
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October 12,1995. This letter provides the requested information applicable to Point Beach Unit 1.
' In December 1995, Revision 3 to WCAP-12794, " Reactor Cavity Neutron Measurement Program for Wisconsin Electric Power Company, Point Beach Unit 1" was issued. This revision incorporates dosimetry results from fuel cycles 20 through 22, and impicments the latest available nuclear cross-section data derived from ENDF/B-VI. The results of WCAP-12794, Revision 3 are consistent with the results determined in Revision 2 for the PBNP Unit I limiting materials. For the belt-2 lice circumferential wcld (SA 1101) at 32 EFPY, the inside surface fluence determined in Revision 3 is 2.46E+19 n/cm (E > 1.0 MeV). This is approximately 1% higher than the fluence value determined for this location in WCAP-12794, Resision 2.
Based on our reviews, the Point Beach Unit 2 SA-1484 weld remains limiting for the evaluation of the PBNP Units I and 2 heatup and cooldown curves. Therefore, the heatup and cooldown limit curve expiration date in the proposed Technical Specification remains valid for PBNP Units 1 and 2.
Please contact us should you have any further questions.
Sincerely, l
' Bob Link Vice President Nuclear Power 9602120346 960202 PDR ADOCK 05000266 JRP P
PDR Enclosure cc: NRC Regional Administrator, NRC Resident inspector, Public Service Commission of Wisconsin t
120060 TI$U o.
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