ML19260A410

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Responds to IE Bulletin 79-24.Engineer Evaluation Initiated to Determine Necessity of Addl Freeze Protection for 10 Instrumentation Lines.No Freezing Has Occurred During Two Yrs of Operation
ML19260A410
Person / Time
Site: Farley  Southern Nuclear icon.png
Issue date: 10/31/1979
From: Clayton F
ALABAMA POWER CO.
To: James O'Reilly
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
References
IEB-79-24, NUDOCS 7911210071
Download: ML19260A410 (2)


Text

a Alabama Power Company 600 North 18th Street b

Post office Box 2641

'. Birmingham, Alabama 35291 [ @ [7 Telephone 205 323-5341 .

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kko 'fe' ,";ii AlabamaPower I ttv> sou hern eks lrr : gsten ej jj October 31, 1979 Docket Nos. 50-348 50-364 NRC IE Bulletin 79-24 Mr. James P. O'Reilly, Director U. S. Nuclear Regulatory Ocrimission Region II 101 Marietta Street, N. W.

Suite 3100 Atlanta, Georgia 30303

Dear Mr. O'Reilly:

Alabama Power Cmpany subnits the following in response to I.E.Bulletin 79-24 for Farley Nuclear Plant.

Unit-1: A review was mnducted to determine if adequate pro-tective measures were taken to assure that process, instrument, and sampling lines associated with safety systems do not freeze during extr eely cold weather.

All safety-related process, instrument and sampling lines were determined to have adequate freeze protection with the possible exception of ten (10) plant service water instrumentation lines located in outside service water valve boxes. These instrument lines have no heat tracing but are heated indirectly by FW notor heaters located within the valve boxes. No freezing has occurred during tw years of operation. An engineering evaluation has been initiated to determine if additional freeze pro-tection provisions are required. If additional freeze protection is determined to be required, it will be in-stalled on an expedital basis.

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Docket Nos. 50-348 50-364 NIC IE Bulletin 79-24 Mr. James P. O'Reilly October 31, 1979 Unit-2: Action has been initiated to have a similar review conducted on Unit-2. Any action required by this review will be runpleted prior to initial criticality of Unit-2.

Yours very truly, f, 6, gf~f F. L. Clayton, Jr.

FICjr/INE/mnb cc: Mr. R. A. Thcmas Mr. G. F. Tm wbridge 1380 :57

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