ML20032A143

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Forwards 811005 Application for Withholding & Proprietary & Nonproprietary Versions of Westinghouse Reactor Protection Sys/Esf Actuation Sys Setpoint Methodology. Proprietary Version Withheld (Ref 10CFR2.790)
ML20032A143
Person / Time
Site: Summer 
Issue date: 10/19/1981
From: Nichols T
SOUTH CAROLINA ELECTRIC & GAS CO.
To: Harold Denton
Office of Nuclear Reactor Regulation
Shared Package
ML20032A144 List:
References
AW-76-60, NUDOCS 8110280362
Download: ML20032A143 (2)


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SOUTH CAROLINA ELECTRIC a gas COMPANY U

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October 19, 19Si

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cp/h Mr. Harold R. Denton, Director Office of Nuclear Reactor Regulation U. S. Nuclear Regulatory Ocmnission N

Washington, D. C.

20555

Subject:

Virgil C. Sunraer Nuclear Station Docket No. 30/395 1tpoint Study

Dear Mr. Denton:

In response tc te NRC letter of April 11, 1977, concerning '.ne need for additional infornation f r instrumnt setpoint values, South Carolina Electric and Gas 02npany (SCE&G) is forwarding the enclosed material. This should also satisfy the I&C Branch <vncern in SER Section 7.2.3 to provide an analysis of the effect of pst-accident environmental conditions on the setpoint for the reactor trip systan and engineered safety features actuation systen instrumntation.

Enclosed are:

1.

Five '5) copies of Information Iblated to Reactor Protection System / Engineered Safety Features Actuation System Setpoint M3thodology (Proprietary) 2.

Five (5) copies of Information Delated to Reactor Protection System / Engineered Safety Features Actuation System Setpoint Methodology (Non-Proprietary)

Also enclosed is:

1.

One (1) copy of Westinghouse Application for Withholding, CAW-81-76 (Non-Proprietary).

As this subnittal contains information proprietary to Westinghouse Electric Cbrporation, it is supported by an affidavit signed by Westing kuse, the owners of the information. 'Ihe affidavit sets forth the basis on which the information may be withheid fran public disclosure by the Omrmission and addresses with specificity the considerations listed in paragraph (b)(4) of Section 2.790 of the Comnission's regulations.

gO Accordingly, it is respectfully requested that the information

]OV 0 which is proprietary to Westinghouse be withheld fran public gu 9

disclosure in accordance with 10CFR Section 2.790 of the Oximission's p Qp j

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[@p regulations. Correspondence with respect to the proprietary aspects j\\ '

of this application for withholding or the supporting Westinghouse affidavit shoind reference CAW-81-76 and should be addressed to Ok R. A. Wiesemann, Manager, Pequlatory and Legislative Affairs, f

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Ix Mr. H. R. Denton Cetober 19, 1981 Page 2 Westinghouse Electric (brporation, P. O. Box 355, Pittsburgh, Pennsylvania 15230.

With this transmittal of triis setpoint information, SCE&G corsiders this iten to be resolved.

In the near future we exped to utilize the Technical SIecification Methodology de,ribal in Section 4.2 of this report.

Waen this is done, SCF.5C - 11 subnit a revised table 3-4 reflecting the new format in the s

_.ical Specifications.

If you have any quet.tions, please let us know.

Very trul yours d

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T. C. Nichols, Jr.

NEC:'ICI:lkb Attactrents cc:

V. C. Sumer G. H. Fischer T. C. Nichols, Jr.

H. N. Cyrus J. C. Ruoff D. A. Nauman W. A. Williams, Jr.

R. B. Clary O. S. Bradham A. R. Koon M. N. Browne B. A. Bursey J. L. Skolds J. B. Knotts, Jr.

H. E. Yoccm NPCF File

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