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

-~ f plant electrical. output, the be measured and recorded' o

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 cy cle.

tested once per operating operation, the post-LOCA containment 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 I

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Instrumentation Surveillance'is l'

Whenever the reactor is in power -.

L operation, there shall be at least.

listed in Table 4.2-ll.-

'l one CAD System H2 and 02 analyzer serving the primary containment. -

If one H2 and.02 analyzer is in-

[.:

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

' exceed seven days.

1

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

.,~ l drywell and suppression chamber shall between the drywell. and 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.

]

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 i

Switch in the RUN moue.

The dif-

-on February 7,1982.

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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