ML19351D623

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Submits Info to Suppl Responses to Re post-accident Monitoring Questions
ML19351D623
Person / Time
Site: Summer South Carolina Electric & Gas Company icon.png
Issue date: 10/07/1980
From: Nichols T
SOUTH CAROLINA ELECTRIC & GAS CO.
To: Harold Denton
Office of Nuclear Reactor Regulation
References
NUDOCS 8010140272
Download: ML19351D623 (2)


Text

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SOUTH CAROLINA ELECTRIC a GAS COMPANY

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COLUMelA, SOUTH CAROLINA 29218 T. C. NacMots, Jn.

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October 7, 1980 en u 1

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t Mr. Harold R. Denton, Director Office of Nuclear Reactor Regulation U. S. Nuclear Regulatory Commission Washington, D. C. 20555

Subject:

Virgil C. Summer Nuclear Station Docket No. 50/395 Post Accident Monitoring Questions

Dear Mr. Denton:

1 South Carolina Electric & Gas Company, acting for itself and as agent for South Carolina Public Service Authority, provides forty-five (45) copies of the following information to supplement the responses in our letter te you dated 9/23/80 on the same subject. This informa-tion was requested by Mr. Peter H2arn of the NRO in a phone conference on 10/2/80.

The ranges for post accident monitoring instrumentation provided i

to indicate containment water level, containment pressure and hydrogen concentration are consistent with the requirements of NUREG-0578 NUREG-0660 and proposed revision 2 to Regulatory Guide 1.97 (Working i

Paper E dated 8/20/80).

The qualification of these instruments is consistent with presene t licensing commitments on Regulatory Guides 1.89 (Rev. 0) and 1,97. (Rev. 0) -

shown in FSAR Section 3A.

Specifically, the Rosemount transmitters used to sense containment water level and containment wide range pressure have^

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been qualified to IEEE-323-71 and IEEE-344-75. The recently purchased containment hydrogen concentration monitors are to be qualified to IEEE-323-74 and IEEE-344-75.

The information provided in our 9/24/80 response to NUREG-0588 includes additional details about the qualification of these instruments in accordance with Regulatory Guides 1.89 and 1.97.

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e Mr. Harald R. Dent:n October 6, 1980 Page fIso if you require additional information, please let us kr.ow.

Very truly yours.

W 1 % 2. A T. C. Nichols, Jr.

SMC:TCN:rh cc:

B. A. Bursey V. C. Summer G. H. Fischer W. A. Williams, Jr.

T. C. Nichols, Jr.

E. H. Crews, Jr.

H. T. Babb D. A. Nauman O. S. Bradham O. W. Dixon, Jr.

J. B. Knotts J. L. Skolds I&E (Washington)

Document Management Branch NPCF/Whitaker File

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