ML20148U352

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Forwards Nonproprietary & Proprietary Versions of Computer Printouts Re Updated Low Pressure Turbine Disc Calculations. Change in Calculating Tangential Stress Changed Critical Crack Size.Proprietary Version Withheld (Ref 10CFR2.790)
ML20148U352
Person / Time
Site: Rancho Seco
Issue date: 02/23/1981
From: Mattimoe J
SACRAMENTO MUNICIPAL UTILITY DISTRICT
To: Eisenhut D
Office of Nuclear Reactor Regulation
Shared Package
ML19260G644 List:
References
NUDOCS 8103030582
Download: ML20148U352 (17)
v • d • e


Text

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g gSMUD SACRAMT.NTo MUNICIPAL UTILIT'I DISTRICT O 6201 S Street, Box 15830, sacramento, California 95813; (916) 452 3211 February 23, 1981 Director of Nuclear Reactor Regulation c',

Attention: Mr. Darrell G. Eisenhut

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Division of Licensing U.S. Nuclear Regulatory Commission j__

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Docket 50-312

= F' 75 Rancho Seco Nuclear Generating

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Dear Mr. Eisenhut:

The purpose of this letter is to provide you with updated infor-mation in response to your request for information of February 25, 1980, relative to turbine disc integrity.

Our original response dated March 19, 1980 contained the results of site-specific calculations, to respond to question 1-d of your letter. These calculations were repeated employing a more sophisticated calculation model and these were sent to you on De-cember 9, 1980.

It has now come to our attention that a recommended change in calculating tangential stress has changed the critical crack size for discs one and five for the low pressure turbines at Rancho Seco.

Therefore, please replace the appropriate computer printout sheets of the December 9, 1980 submittal with those attached Also please note that the sheets are for the proprietary and non-proprietary portions of the December 9,1930 submittal.

The attached responses (Enclosure I) contain proprietary infor-mation of the Westinghouse Electric Corporation.

A copy of the previously submitted Application for Withholding AW-80-5 dated March 14, 1980 and the associated affidavit is attached and is eaually applicable to this new mate rial.

Accordingly, it is requested that the subject Westinghouse proprietary information be withheld from public disclosure in accordance with the provisions of 10 CFR 2.790 of the Commission's regulations.

Correspondence with respect to the effidavit or AppIication for Withholding should reference AW-80-5 and should be addressed to Mr. R.W.

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Gaul, Manager, CR Disc Program, Westinghouse Electric Corporation, Steam Turbine Division, Lester Branch Box 9175, Philadelphia, PA 19113.

Sincerely yours, b

J.'J. Mattimoe Assistant General Manager 8108080 % %

and Chief Engineer P

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AW-80-5 March 14, 1980 Darrell G. Eisenhut Division ef Operating Reactors Office of Yuclear Reactor Regulation US Nuclear Reguistory Commission Washington DC 20533 APPLICATION FOR WITHHOLDING PROPRIETARY INFORMATION FROM PUBLIC DISCLOSURE

Subject:

Rancho Seco Generating Station - Uait il Docket' #50-312 Information in Response to NRC Request for Information of February 25, 1980, Relative to Low Pressure Turbine Dise Integrity.

Reference:

Appendix A letter from J. J. Mattinoe to Eisenhut, dated 3/19/80

Dear Mr. Eisenhut:

This application for withholding is submitted by Westinghouse Electric Corporation (" Westinghouse") pursuant to the provisions of paragraph (b)(1)

I of Section 2.790 of the Commission's regulations. Withholding from public disclosure is requestai with respect to the subject information which is further identified in the af fidavic accompanying this. application.

The undersigned has reviewed the information sought to be withheld and is authorized to apply for its withholding on behalf of Westinghouse, STG-TOD.

The affidavit secompanying this application 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 subject information which is proprietary to. Westinghouse and which is further identified in the affi-davit be withheld from public disclosure in accordance with 10CyR S, tion 2.790 of the Commission's regulations.

Correspondence with respect to this application for withholding or the accour-panying affidavit should be addressed to the undersigned.

Yery truly yours,,

f,.Lt /hJ?>

R. Williamson, Manager l

Customer Order Engineering Westinghouse Electric Corporation l

1

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Raft AW-80-5 AFFIDAVIT

/

COMMONWEALTH OF PENNSYLVANIA COUNTY Of DCLAWAFE:

1 l

53 fore me, the undersigned authority, personally appeared Robert

/

Williamson, who, being by me duly sworn according to law, deposes and says that he is authorized to execute this Affidavit on behalf of Westinghouse Electric Corporation (" Westinghouse") and that the averments of fact set forth in this Affidavit are true and correct to the best of his knowledge, inforuation, and belief:

[hk

)

_w-Robert Williamson, Manags.'

Customer Order Engineering up Q:hd dG'Y' eg)4 cay v!t?4. 413 b-gua,

CM.wt

, c::rc W

HENRY L SQUILQCE Ampy M.fic, unme f p., ce:a.are es.

[*; Commisson fa; ras Oct.13. :Sai

}

I am Manager, Customer Order Engineering in the Steam Turbine

1)

Generator Tech'nical Operations Division of Westinghouse Electric Corporation and as such, I have been specifically delegated the function of reviewing the proprietary information sought to be withheld from public disclosure in connection with nuclear power plant licensing, and am authorized to apply for its withholding on behalf of the Westinghouse Power Generation Divisions.

I am making this Affidavit in conformance with the provisions of (2) 10 CFR Section 2.790 of the Commission's regulations and in conjunction with the Westinghouse application for withholding accompanying this Affidavit.

I have personal knowledge of the criteria and procedures utilised (3) by Westinghouse Power Cer.cration Divisiens in designating informa-tion as a trade secret, privileged or as confidential coc:mercial or financial information.

Pursuant to the provisiens of paragraph (b)(4) of Section 2.790 of f

(d) the Coc: mission's regulations, the following is furnished for con-sideration by the Commission in determining whether the information sought to te vithheld from puolic disclosure should be withheld.

The information sought to be withheld from public disclosure (1) is owned and has been held in confidence by Westinghouse.

The infermation is of a type customarily held in confidence (11)

_ by Westinghouse and not customarily disclosed to the pub-Westinghouse has a rational basis for determ!ning the lic.

types of information customarily held in confident e by it and, in that connection, utilises a system to det remine when f

and whether to hold certain types of information in confi-l The application of that system and the substance of f

de:.c e.

that system constitutes Vestinghouse policy aod provides the rational basis required.

^

Under that system, information is held in confidence if it falls in one or more of several types, the release of which might result in the loss of an existing er potential com-petitive advantage, as follows:

(a) The information reveals the distinguishing aspects of a process (or component, structure, tool, me', hod, etc.)

where prevention of its use by any of Westinghouse's competitors without license from Westinghouse consti-tutes a competitive economic advantage over other companies.

(b) It consists of supporting data, including test data, relative to a process (or component, structure, tool, s

method, etc.), the application of which data secures a competitive economic advantage, e.g., by optimization

- or improved marketability.

~

~~~

(c) Its use by a competitor would reduce his expenditure of resources or improve his competitive position in the design, manufacture, shipment, installation, assurance of quality, or licensing a similar product.

(d) It reveals cost or price information, production capac-ities, budget levels, or commercial strategies of West-inghouse, its customers or suppliers.

(e) It reveals aspects of past, prescnt, or future Westing-

. house or customer funded development plans and programs of potential commercial value to Westinghouse.

(f) It contains patentable ideas, for which patent protee-tion may be desirable.

(g) It is not the property of Westin6 house, but must be treated as proprietary by Westinghouse according to agreements witL the owner.

l M &li'~f V[

(h) Public disclosure of this information would allow un-fair and untruthful judg=ents on the performance and reliability of Westinghouse equipment components and

^

improper comparison with similar cocponents made by competitors.

O There are sound policy reasons behind the Westinghouse syst u which include the following:

(a) The use of such information by Westinghouse gives West-inghouse a competitivo advantage over its competitors.

It is, therefore, withheld from disclosure to protect the Westinghouss competitive position.

(b) It is inforc.ation which is marketable in riany ways.

The extent to which such information is available to competitors diminishes the Westinghouse ability to sell products and services involving the use of the information.

(c) Use by our competitor would put Westinghouse at a ecm-pttitive disadvantage by reducing his e;xpenditur'e of resources at our expense.

Each cocponent of proprietary information pertinent to (d) a particular competitive advantage is potentially as It com-valuable as the total competitive advantage.

i

~

petitors acquire components of proprietary information, any one component may be the key to the entire pu::le, g

thereby depriving Westinghouse of a co=petitive advantage.

e (e) Unrestricted disclosure would jeopardi=e the position of prominence of Westinghouse in the world market, and thereby give a market advantage to the competition in those countries.

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(f) The Westinghouse capacity to invest corporate assets in

/

research and development depends up,on'the success in obtaining and maintaining a competitive advantage.

[iii) The information is being transmitted to the Commission in confidence and, under the provisions of 10 CFR Sec-tion 2 790, it is to be received in confidence by the Commission.

(iv)

The information is not available in public sources to the best of our knowledge and belief.

(v)

The proprietary information sought to be withheld in this submittal is that which is appropriately marked in Appen-dix A to letter from J. J. Macciroe to Eisenhut, dated March 19, 1980 concerning infor-nation in response to NRC request for information of February 25, 1980, relative to low pressure turbine disc integrity.

The information enables Westinghouse to:.

(a) Develcp test inputs and procedures to satisfactorily verify the design of Westinghouse supplied equipment'.

(b) Assist its customers to obtain licenses.

Further, the information has substantial commercial value as follows.

(a) Westinghouse can sell the use of this information to customers.

(b) Westinghouse uses the information to verify the design of equipment which is sold to customers.

l

1 (c) Westinghouse can sell services based upon the exper-ience gained and the test equipment and methods developed.

Public disclosure of this information is likely to cause substantial harm to the competitive position of Westinghouse because it would enhance the ability of competitors to design, manufacture, verify, and sell electrical equipment for commercial turbine-generators without commensurate Also, public disclosure of the information would expenses.

enable others having the same or similar equipment to use the information to me:t NRC requirements for licensing documentation without purchasing the right to use the information.

The development of the equipment described in part by the information is the result of many years of development by Westinghouse and the expenditure of a considerable sum of money.

This could only ue duplicated by a ecmpetitor if he were to invest similar su=s of money and provided he had the appro-priate talent available and could somehow obtain the requi-site experience.

Further the deponent sayeth not.

_

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