ML100331748
| ML100331748 | |
| Person / Time | |
|---|---|
| Site: | Indian Point  |
| Issue date: | 09/30/1991 |
| From: | Ralph Beedle Power Authority of the State of New York |
| To: | NRC/IRM |
| Shared Package | |
| ML100331749 | List: |
| References | |
| IEB-88-011, IEB-88-11, IPN-91-036, IPN-91-36, NUDOCS 9110080321 | |
| Download: ML100331748 (3) | |
Text
123 Main Street White Plains, New York 1
914 681.6846 O
NewYork Power 4
Authority Ralph E. Beedle Executive Vice President Nuclear Generation September 30, 1991 IPN-91-036 U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Mail Station P1-137 Washington, D.C. 20555
SUBJECT:
References:
Indian Point 3 Nuclear Power Plant Docket No. 50-286 Response to Bulletin 88 Pressurizer Surge Une Thermal Stratification
- 1.
NRC Bulletin 88 "Pressurizer Surge Une Thermal Stratification," dated December 20, 1988.
- 2.
NRC letter, F. J. Williams to R. E. Beedle, dated August 27, 1991, "Pressurizer Surge Une Thermal Stratification,Bulletin 88-11, Indian Point Nuclear Generating Unit No. 3 (TAC No. 72139)."
Dear Sir:
In response to Reference 1 and Reference 2, this letter notifies the NRC of the completion of the actions required by NRC Bulletin 88-11, "Pressurizer Surge Une Thermal Stratification." The results of the actions required by the Bulletin are available for NRC inspection.
In accordance with the Bulletin, a stress and fatigue analysis which demonstrates that the pressurizer surge line meets applicable design codes for the life of the plant, considering the effects of thermal stratification and thermal striping, has been completed. Attachment I to this letter provides a description of the analytical approaches used in the analysis and a summary of the results of the analysis. This information is required by reporting requirement 3 of Reference 1.
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Proprietary and non-proprietary evaluations of the Indian Point Unit 2 and Unit 3 surge lines done by Westinghouse are included as Enclosures A and B respectively. Specifically these enclosures consist of:
Enclosure A:
2 copies of WCAP-12937, "Structural Evaluation of Indian Point Unit 2 and 3 Pressurizer Surge Unes Considering the Effects of Thermal Stratification" (Proprietary).
Enclosure B:
2 copies of WCAP-12938, "Structural Evaluation of Indian Point Unit 2 and 3 Pressurizer Surge Unes Considering the Effects of Thermal Stratification" (Non-Proprietary).
Also enclosed, as Enclosure C, are a Westinghouse authorization letter, CAW-91-208, accompanying affidavit, Proprietary Information Notice, and Copyright Notice.
As Enclosure A contains information proprietary to Westinghouse Electric Corporation, it is supported by an affidavit signed by Westinghouse, the owner of the information. The affidavit sets forth the basis on which the information may be withheld from public disclosure by the Commission and addresses with specificity the considerations listed in paragraph (b) (4) of Section 2.790 of the Commission's regulations.
Accordingly, it is respectfully requested that the information which is proprietary to Westinghouse be withheld from public disclosure in accordance with 10 CFR Section 2.790 of the Commission's regulations.
Correspondence with respect to the copyright or proprietary aspects of the items listed above or the supporting Westinghouse Affidavit should reference CAW-91-208 and should be addressed to R. P. DiPiazza, Manager of Nuclear Safety Ucensing, Westinghouse Electric Corporation, P.O.
Box 355, Pittsburgh, Pennsylvania 15230-0355.
If you have any questions, please contact Mr. P. Kokolakis of my staff.
Very truly yours, R
E. ee~1 lecutiv Vice President uclear eneration aft:
As stated cc:
See next page
-3 cc:
U. S. Nuclear Regulatory Commission 475 Allendale Road King of Prussia, PA 19406 Resident Inspector's Office Indian Point Unit 3 U. S. Nuclear Regulatory Commission P.O. Box 337 Buchanan, NY 10511 Nicola F. Conicella, Project Manager Project Directorate I-1 Division of Reactor Projects-I/l U. S. Nuclear Regulatory Commission Mail Stop 14B2 Washington, D.C. 20555