NSD-NRC-96-4646, Forwards Proprietary Info on Conservative Modeling of AP600 PCS Film in DBA Evaluation.Encl Provided in Support of Response to NRC Requests for Addl Info (Rais) 480.381 Through 480.387.Encl Withheld (Ref 10CFR2.790)

Forwards Proprietary Info on Conservative Modeling of AP600 PCS Film in DBA Evaluation.Encl Provided in Support of Response to NRC Requests for Addl Info (Rais) 480.381 Through 480.387.Encl Withheld (Ref 10CFR2.790)

ML20100G546
Person / Time
Site:	05200003
Issue date:	02/15/1996
From:	Mcintyre B WESTINGHOUSE ELECTRIC COMPANY, DIV OF CBS CORP.
To:	Quay T NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
Shared Package
ML19355C684	List: ML20100G573 NSD-NRC-96-4646, Forwards Proprietary Info on Conservative Modeling of AP600 PCS Film in DBA Evaluation.Encl Provided in Support of Response to NRC Requests for Addl Info (Rais) 480.381 Through 480.387.Encl Withheld (Ref 10CFR2.790)
References
NSD-NRC-96-4646, NUDOCS 9602230248
Download: ML20100G546 (4)

Text

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\e Westinghouse Energy Systems Box 355 l Electric Corporation Pittsburgh Pennsylvania 15230 0355 NSD-NRC-96-4646 DCP/NRC0466 Docket No: STN-52-003 February 15, 1996 Document Control Desk U.S. Nuclear Regulatory Commission Washington, D.C. 20555 ATTENTION: T.R. QUAY

SUBJECT:

CONSERVATISM IN MODELING OF THE PCS FILM IN THE DBA EVALUATION MODEL AND COMPARISON OF THE RANGE OF FILMS PARAMETERS IN THE PCS TEST DATA WITH AP600

Dear Mr. Quay:

Enclosure I to this letter provides information on the conservative modeling of the AP600 PCS film in the DBA evaluation. This enclosure is provided in support of the response to NRC Requests for Additional Information (RAls) 480.381 through 480.387. The enclosure is titled " Conservatism in Modeling of the PCS Film in the DBA Evaluation Model and Comparison of the Range of Film Parameters in the PCS Test Data with AP600." The non-proprietary copy of Enclosure 1 is provided as Enclosure 2.

This submittal contains Westinghouse proprietary information consisting of trade secrets, commercial information or financial information which we consider privileged or confidential pursuant to 10CFR2.790. Therefore, it is requested that the Westinghouse proprietary information attached hereto be handled on a confidential basis and be withheld from public disclosures. The non-proprietary copy of Enclosure 1 is provided as Enclosure 2.

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2683A 1 230030, jIs 9602230248 960215 PDR ADOCK0520g3 A

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NSD-NRC-96-4646 DCP/NRC0466 February 15, 1996 This material is for your internal use only and may be used for the purpose for which it is submitted.

It should not be otherwise used, disclosed, duplicated, or disseminated, in whole or in part, to any other person or organization outside the Commission, the Office of Nuclear Reactor Regulation, the  :

Office of Nuclear Regulatory Research and the necessary subcontractors that have signed a  !

proprietary non-disclosure agreement with Westinghouse without the express written approval of j Westinghouse.

Correspondence with respect to the application for withholding should reference AW-%-927, and should be addressed to B. A. McIntyre, Manager of Advanced Plant Safety and Licensing, Westinghouse Electric Corporation, P.O. Box 355, Pittsburgh, Pennsylvania, 15230-0355.

i Please contact John C. Butler (412-374-5268) if you have any questions concerning this submittal.

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Bria . Mcl yre, Mana  !

Advanced Plant Safety and ensing

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Attachment .

l Enclosure  ;

l  !

l cc: T. Kenyon, NRC (w/o Attachment or Enclosures)  :

D. Jackson, NRC (IEl)

E. Throm, NRC (IEl) .

l J. Kudrick, NRC (IEl) l P. Boehnert, ACRS (IEl) i B. A. McIntyre, Westinghouse (w/o Attachment or Enclosures) '

N. J. Liparulo, Westinghouse (w/o Attachment or Enclosures) l i

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l COPYRIGHT NOTICE The reports transmitted herewith each bear a Westinghouse copyright notice. The NRC is permitted ,

to make the number of copies of the information contained in these reports which are necessary for its l internal use in connection with generic and plant-specific reviews and approvals as well as the issuance, denial, amendment, transfer, renewal, modification, suspension, revocation, or violation of a i license, permit, order, or regulation subject to the requirements of 10 CFR 2.790 regarding ,

restrictions on public disclosure to the extent such information has been identified as proprietary by Westinghouse, copyright protection notwithstanding. With respect to the non-proprietary versions of i these reports, the NRC is permitted to make the number of copies beyond those necessary for its internal use which are necessary in order to have one copy available for public viewing in the appropriate docket files in the public document room in Washington, D.C. and in local public document rooms as may be required by NRC regulations if the number of copies submitted is insufficient for this purpose. Copies made by the NRC must include the copyright notice in all >

instances and the proprietary notice if the original was identified as proprietary. t i

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f PROPRIETARY INFORMATION NOTICE Transmitted herewith are proprietary and/or non-proprietary versions of documents furnished to the NRC in connection with requests for generic and/or plant specific review and approval.

In order to conform to the requirements of 10 CFR 2.790 of the Commission's regulations concerning the protection of proprietary information so submitted to the NRC, the information which is proprietary in the proprietary versions is contained within brackets, and where the proprietary j information has been deleted in the non-proprietary versions, only the brackets remain (the ,

information that was contained within the brackets in the proprietary versions having been deleted).  !

The justification for claiming the information so designated as proprietary is indicated in both versions by means of lower case letters (a) through (f) contained within parentheses located as a superscript immediately following the brackets enclosing each item of information being identified as proprietary or in the margin opposite such information. These lower case letters refer to the types of information Westinghouse customarily holds in confidence identified in Section (4)(ii)(a) through (4)(ii)(f) of the affidavit accompanying this transmittal pursuant to 10 CFR2.790(b)(1). .

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