ML20137T681

Provides Status of Environ Qualification Effort for Drywell Hydrogen & Oxygen analyzers.Architect-engineer Determined Equipment Located in Mild Environ Will Remain Operable During & for at Least 180 Days Following LOCA

ML20137T681
Person / Time
Site:	Hatch
Issue date:	11/27/1985
From:	Gucwa L GEORGIA POWER CO.
To:	Muller D Office of Nuclear Reactor Regulation
References
0036C, 36C, SL-17, TAC-57133, NUDOCS 8512090083
Download: ML20137T681 (2)

Text

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@Mj ~ SN i GeorgiaMr C5mpany ' --

-i A. ' ~2 7-M 1333 Piedmont Avenuei gy Q. "f ( Atlanta, Georgia 30308 :; ._

Telephone 404 5264526 ' "

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' Mailing Address:-1 .

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t Post Offce Box 4545-j i 'e jAtlanta, Georgia 30302' '

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~, GeorgiaPower?

CT.GucweN the southem ekxtnc system S Manager Nuclear Engineering -

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November 27, 1985

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Director.~of Nuclear Reactor Regulation (Attention:-:Mr'. D. Muller,! Project Director

BWR Project Directorate No.-21 "pl s ;

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, .  ; Division of'8 oiling Water Reactor Licensing

'[U.:S. Nuclear Regulatory; Commission-LWashington,"D. C. :205551

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~NRC DOCKET 50-366

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OPERATING LICENSE:NPF-5

, .- 'EDWINiI. HATCH NUCLEAR PLANT UNIT 2 m ' ' iSTATUS OF ENVIRONMENTALLQUALIFICATION EFFORT s.

< 'r FOR THE DRYWELL-HYDROGEN AND OXYGEN ANALYZER $

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~ IGentlemen:-

By fletter' dated ' August . 16, 1985 (NED-85-523), . Georgia Power Company.

& (GPC) linformed; the NRC 'of L significant ' problems with the qualification

' effort fore the ~. Primary?- Containment .- Hydrogen 2-(H ) and OxygenE(0 2 ) gas N analyzersEdedicated for use at ~ Plant Hatch linits 1 and 2. The - specific .

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- problemsinoted in 'that letter had occurred : during . the Loss of Coolant - -

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- Accident 1(LOCA) testing for 'the heat < tracing on the sample input tubing g, lfor these_ analyzers.

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~ Following ~the date- of ' submittal . of letter 'NED-85-523, the 9 Architect / Engineer .(A/E) sfor. . Pl ant- Hatch- determined- that the-

< environmental :profiies (temperature / pressure) which the analyzer ! vendor

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was1using to specify the qualification testing for the heat tracing -on;

', the JH 2 ^.and /02-  : analyzers,* were'- considerably more, severe ~ than .the conditions which this : equipment .is expected. to experience during design ,

4 - . .basisfevents for which its function is required. The A/E then reanalyzed x

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c Georgia Power

Director of Nuclear Reactor Regulation

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4 Attention: Mr.7D. Muller, Project Director

BWR~ Project Directorate No.-2 November 27,

1985 lPage Two th'e portions of the testing program which had been successfully completed and subsequently made a determination' that .the Hatch Unit 2 equipment,:

lwhich is : located in a mild environment, would remain operable- during and for-at least :180 days following any such event and is qualified for' its intended use at Plant Hatch.as required by 10 CFR'50.49.

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Sincerely yours,

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- L. T. Gucwa

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Mr.-J. T. Beckham, Jr.-

-Mr.1 H.-C. Nix,:Jr.

- Dr. J. N. Grace (NRC-Region II)

-Senior Resident Inspector.

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.GO-NORMS

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