ML20215J788

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Interim Deficiency Rept Re Calculations Not Performed to Establish Acceptance Values for Instrument Cable Internal Resistance During Accident Conditions.Evaluation Continuing. Next Rept Expected by 861107
ML20215J788
Person / Time
Site: Vogtle  Southern Nuclear icon.png
Issue date: 10/15/1986
From: Foster D
GEORGIA POWER CO.
To: Grace J
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
References
GN-1119, NUDOCS 8610270185
Download: ML20215J788 (1)


Text

i Georgia Fbwer Cornpany Post Office Box 282 Waynesboro, Georgia 30830 Telephone 404 554-9961, Ext. 3360 404 724-8114. Ext. 3360 k

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Georgia Power

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C irm scwen e:ectre:ysiorn October 15, 1986 United States Nuclear Regulatory Commission Region II File:

X78G03-M99 Suite 2900 Log:

GN-1119 101 Marietta Street, Northwest Atlanta, Georgia 30323

Reference:

Vogtle Electric Generating Plant-Units 1 and 2; 50-424, 50-425; Instrument Cable Insulation Resistance; Letter GN-887 dated 5/1/86; Letter GN-973 dated 6/30/86; Letter GN-1056 dated 8/25/86.

Attention:

Mr. J. Nelson Grace In previous correspondence on this subject, Georgia Power Company described a potentially reportable concern whereby calculations were not performed to establish acceptance values for instrument cable internal resistance during accident conditions to ensure the accuracy of instrument signals.

Georgia Power Company is continuing its evaluation of this condition and now expects to inform the USNRC of the results by November 7,1986.

This response contains no proprietary information and may be placed in the NRC Public Document Room.

Yours truly, D. O. Foster REF/D0F/tdm xc:

U. S. Nuclear Regulatory Commission Document Control Desk Washington, D. C.

20555 H. G. Baker R. A. Thomas L. T. Gucwa J. P. O'Reilly D. R. Altman C. W. Hayes G. F. Head P. R. Bemis G. A. McCarley R. E. Conway J. A. Bailey R. W. McManus J. T. Beckham

0. Batum D. S. Read R. H. Pinson G. Bockhold Sr. Resident (NRC)

P. D. Rice C. E. Belflower C. C. Garrett (0PC)

B. M. Guthrie J. F. D'Amico J. E. Joiner (TSLA)

D. E. Dutton E. D. Groover D. Feig (GANE) 861027j Q 8 NO 4

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