ML20236H994

Proposed Tech Specs Allowing Temporary Extension of 24 H Limiting Condition for Operation of Drywell Inerting to 72 H

ML20236H994
Person / Time
Site:	Hatch
Issue date:	02/08/1982
From:	GEORGIA POWER CO.
To:
Shared Package
ML20236H997	List: ML20236H994 ML20244B845
References
TAC-54378, TAC-54379, NUDOCS 8711050082
Download: ML20236H994 (2)

Text

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@ LIMITING CONDITIONS FOR OPERATION SURVEILLANCE REQUIREMENTS p

'3.7.A.5. Oxygen Concentration 4.7.A.5 0xygen Concentration L a. After completion of the startup' The primary containment test program.and demonstration. Oxygen concentration shall

-~ o f plant electrical. output, the be measured and recorded' n .' primary containment ' atmosphere daily in the main control shall be reduced to less.than room.

4%Loxygen with nitrogen gas dur-ing~ reactor power operation with reactor coolant pressure above 100 psig, except as' stated in

Specification 3.7.A.5.b.

b. Within the 24-hour

• period sub- *A 72-hour period _is allowed sequent to placing the reactor .for the startup in progress in the Run Mode following a shut- on February 7,1982.

down, the containment atmosphere oxygen concentration shall be re-duced to less than 4% by volume and maintained in this condition. 'De-inerting may commence 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> prior to a shutdown. ,

3i 6. Containment Atmosphere Dilution (CAD) 6. Containment- Atmosphere Dilution (CAD)

a. Operability Requirements a. Functional Test

'After completion of the startup test The post-LOCA Containment program and demonstration of plant- Atmosphre Dilution (CAD) electrical output and thereafter System shall be' functionally whenever the reactor is in power .

tested once per operating operation, the post-LOCA containment cy cle.

Atmosphere Dilution (CAD) System -

must be operable and capable of supplying nitrogen to the' primary containment for. dilution if required by post-LOCA conditions. If this

' specification cannot be met, the system must; be restored to an operable condition within seven days or the reactor must be taken out of power operation.

b. Seven-Dcy Nitrogen Supply Seven-Day Nitrogen S,upply After completion 07 the startup test The level in the liquid program and demonstration of plant nitrogen storage tanks  !

electric output and thereafter shall be recorded twice  ;

whenever the reactor is in power l operation, the CAD System shall con- i tain a minimum of 2000 gallons of , )

11guld nitrogen. If this specification cannot be met, the minimum volume will i be restored within seven days or the j reactor must be taken out of power  ;

operation.  !

8711050002 880228 3,7_9 PDR ADOCK 05000321 p PDR

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l' Whenever the reactor is in power - .

Instrumentation Surveillance'is L operation, there shall be at least. listed in Table 4.2-ll.-

one CAD System H2 and 02 analyzer 'l:

serving the primary containment. -

If one H2 and.02 analyzer is in-

[.: . operable, the reactor may remain-inperation o for.a period not to;

' exceed seven days.

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d. Post-LOCA Repressurization Limit The maximum. post-LOCA primary con-tainment repressurization limit  !

-allowable usirg the CAD System l shall be 30 psig. Venting via the SGTS to the main stack must be initiated at 30 psig following the initial post-LOCA pressure peak.

-7. Drywell-Suppression Chamber 7. DIywell-Suppression' Chamber ,

Differential Pressure -Differential Pressure-

' Differential pressure between the The pressure differential drywell and suppression chamber shall between the drywell. and . ,~ l be maintained equal to or greater suppression chamber shall  !

than 1.5 psid except as'specified in be recorded once each shift. 1 (1)'and (2) below: -If this specifica- l tion cannot be met, and the differential pressure cannot be restored within the ,

subsequent six (6) hour ' period, an orderly shutdown shall be initiated ,

and the reactor shall be in a Hot .l

' Shutdown condition in six (6) hours i and a Cold Shutdown condition in the following eighteen-(18) hours.

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1) This differential pressure shall l be established within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> * *A 72-hour period is allowed after having placed the Mode for the start-up in progress .

Switch in the RUN moue. The dif- -on February 7,1982. i ferential pressure may be removed f within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />' prior to achiev- 1 ing a shutdown.  !

2) This differential pressure may be decreased to less than 1.5 psid - 4 for a maximum of four h,gurs during required operability testing of the HPCI system pump, the RCIC system pump, and the drywell-pressure suppression chamber vacuum breakers.

3.7-10

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