ML19345F154

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Submits Review of FSAR Response to Question 211.49. Preliminary Results Indicate Removal of Power from RHR Suction Valves Is Not Required.Further Review of Progress. Change Will Be Completed by End of First Refueling Outage
ML19345F154
Person / Time
Site: Summer South Carolina Electric & Gas Company icon.png
Issue date: 02/02/1981
From: Nichols T
SOUTH CAROLINA ELECTRIC & GAS CO.
To: Harold Denton
Office of Nuclear Reactor Regulation
References
NUDOCS 8102090241
Download: ML19345F154 (2)


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SOUTH CAROLINA ELECTRIC & GAS COMPANY POST OF FICE SQa,84 N

CotuMotA, Sou rH CARolltvA 29218 February 2, 1981 G

T. C. Nicwots Ja.

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g Mr. Harold R. Denton, Director

.J Office of Nuclear Reactor Regulation b

U. S. Nuclear Regulatory Commission 9

A f ad, Washington, D. C.

20555

Subject:

Virgil C. Summer Nuclear Station Docket No. 50/395 RHR System Operation

Dear Mr. Denton:

As a result of questions from the Reactor Systems Branch, SCE&G has conducted a review of the FSAR response to question 211.49.

Preliminary results indicate removal of power from the RHR suction valves is not required. This preliminary conclusion is based upon the.act that the maximum flood level will not reach any exposed electrical connections in the valve operators.

Further detailed review is in progress to confirm this preliminary conclu-sion, Final confirmation that power removal from the valves is not required will be completed within the next several weeks.

If this preliminary conclusion is confirmed, then administrative controls uill be deleted and the FSAR will be revised to reflect this change.

If this preliminary conclusion is not confirmed, necessary changes will be incorporated'-

to resolve the concern without requiring an operator to leave the control room to initiate the RHR system.

I These changes, if required, will be completed by the end of the first re-fueling outage.

If you have any questions, please let us know.

I Very truly yours, 4'

'T.

C. Nichols, Jr.

RBC:TCN:glb-cc: Page Two 1

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Mr. Harold R. Denton February 2, 1981 Page Two cc:

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

B. A. Bursey A. A. Smith W. A. Willicms, Jr.

E. H. Crews, Jr.

H. N. Cyrus D. A. Nauman O. S. Bradham O. W. Dixon, Jr.

J. B. Knotts, Jr.

I R. B. Clary A. R. Koon J. L. Skolds B. Faas J. 3. Cookinham M. Earnisin H. E. Yocon NPCF/Whitaker File 1

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