ML20010C905
| ML20010C905 | |
| Person / Time | |
|---|---|
| Site: | Prairie Island  |
| Issue date: | 08/12/1981 |
| From: | Gilberts D NORTHERN STATES POWER CO. |
| To: | James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| References | |
| IEB-80-04, IEB-80-4, NUDOCS 8108210197 | |
| Download: ML20010C905 (1) | |
Text
.
Y Northern States Power Company 414 Nicollet Matt D. E. Gilberts Minneapolis, Minnesota 55401 Solor Vice Presidkerat Telephone (612) 330-6071 Power Supply l
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August 12, 1981 Mr. James G. Keppler
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{ jf Director, Region III 7
f Office of Inspection and Enforcemen*,
U. S. Nuclear Regulatory Commission y) 799 Roosevelt Road g% 2() p#0/ A l
N i "8 Acto?sIWroer Glen Ei. lyn, IL 60137 l\\
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Dear Mr. Keppler:
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, y PRAIRIE ISLAND NUCLEAR GENERATING PLANT
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Docket No. 50-282 License No. DPR-42 Docket No. 50-306 License No. DPR-60 IE Bulletin No. 80-04 In our May 15, 1980 letter we indicated that our analyses of tha Main Steam l
Line Break Accident were not complete. The referenced analyses have been reviewed ar.d those concerns needing additional analyses have been completed.
The conclusions tFat we can now draw from these additional analyses are the same as the conclusions discussed in the May 15, 1980 letter.
In Section 4.4 of our May 15 letter we indicated an assumption of auxiliary feedwater flow into both steam generators during the event. We have run additional analyses making a more conservative assumption of all auxiliary feedwater going into the steam generator with the steam line break. Several other inputs were changed to make the analysis more conservative. The con-clusions from this reanalysis again are not different from the conclusions made in the May 15, 1980 letter.
Our recent analyses are available for review in the Nuclear Analysis section at our corporate headquarters.
Yours tru:y,
/
VL D. E. Gilberts Senior Vice President Power Supply T(,l cc:
Mr. G. Charnoff ji Mr. C. D. Feierabend 5
Director, Office of Inspection and Enforcement Division 'of Reactor Operations Inspection l
Washington, D. C.
20555
/ g DEG:ng 8108210197 810812 PDR ADOCK 05000282' G
PDR-AUS 14 1981 l
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