ML20100E100

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Forwards Proprietary & Nonproprietary Seismic Response Spectrum at Reactor Vessel Supports, Per 850228 Telcon Re Draft SER Open Item 153.Request for Withholding Proprietary Info (Ref 10CFR2.790) Encl
ML20100E100
Person / Time
Site: Beaver Valley
Issue date: 03/29/1985
From: Carey J
DUQUESNE LIGHT CO.
To: Knighton G
Office of Nuclear Reactor Regulation
Shared Package
ML19269B305 List:
References
2NRC-5-057, 2NRC-5-57, NUDOCS 8504030280
Download: ML20100E100 (8)


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di2Na'7si Nuclear Construction Division Telecopy 8 IttsIu5a"O*l'is2Os " March 29, 1985 United States Nuclear Regulatory Comission Washington, DC 20555 ATTENTION: Mr. George W. Knighton, Chief Licensing Branch 3 Office of Nuclear Reactor Regulation

SUBJECT:

Beaver Valley Power Station - Unit No. 2 Docket No. 50-412 Additional Infomation on Draft SER Open Item 153 Gentlemen:

As part of the structural analyses for Beaver Valley Power Station Unit 2 (BVPS-2), Westinghouse (W) has performed structural analyses using a revised version of the Multiflex computer code (i.e., H11tiflex 3.0). The previous version of Multiflex has been approved by the NRC (July 17, 1977, acceptance letter for WCAP-8708(P) and WCAP-8709(NP) [ entitled "Multiflex - A Fortran-IV Computer Program for Analyzing Thermal-Hydraulics-Structure System Dynamics,"] from J. F. Stolz, NRC, to C. Eicheldinger, W).

During a February 28, 1985, telecon involving Duquesne Light Company (DLC), W, and NRC personnel, the use of Multiflex 3.0 for BVPS-2 was dis-cussed. The NRC also questioned the applicability of Figure 3-1 in WCAP-9401 to BVPS-2. W responded that Figure 3-1 in WCAP-9401 was not the applicable curve and that the bounding curve and BVPS-2 design response spectrum curve would be provided. This information is provided on the attached figure entitled " Seismic Response Spectrum at Reactor Yessel Supports (Beaver Valley Unit 2)."

As the attached figure contains infomation proprietary to Westing-house Electric Corporation, it is supported by an affidavit signed by W, 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 Comission's regulations.

Accordingly, it is respectfully requested that the information which is proprietary to W to be withheld from public disclosure in accordance with 10CFR Section 2.79D of the Commission's regulations. Correspondence with respect to the proprietary aspects of the Application for Withholding or the supporting W affidavit should reference CAW-85-026 and should be addressed to R. A. Wiesemann, Manager, Regulatory and Legislative Affairs, Westinghouse Electric Corporation, P.O. Box 355, Pittsburgh, Pennsylvania 15230. g 6504030200 850329

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United States Nuclear Regulatory Commission Mr. George W. Knighton, Chief Additional Information for Draft SER Open Item 153 Page 2 In accordance with procedures regarding the handling of proprietary information, the following are enclosed:

1. Six (6) copies of figure entitled " Seismic Response Spectrum at Reactor Vessel Supports (Beaver Valley Unit 2)." (Proprietary)
2. Six (6) copies of figure entitled " Seismic Response Spectrum at Reactor Vessel Supports (Beaver Valley Unit 2)." (Non-Proprietary)
3. One (1) copy of Application for Withholding, CAW-85-026. (Non-Proprietary)
4. One (1) copy of Affidavit. '.Nor-Proprietary)
5. One (1) copy of a Proprietary information Notice.

Should you have questions regarding arx of tit 9 items related to this submittal, please contact us.

DUQUESNE LIGHT COMPANY s

By r7'li7 V J. 6. Gdrey Vice President KAT/wjs Enclosures cc: Mr. R. Lobel, Section Leader (w/e)

Mr. B. K. Singh, Project Manager (w/e)

Mr. G. Walton, NRC Resident Inspector (w/e)

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