ML20066G014

Proposed Changes to Tech Spec 3/4.5.4 Re ECCS Suppression Chamber

ML20066G014
Person / Time
Site:	Hatch
Issue date:	11/10/1982
From:	GEORGIA POWER CO.
To:
Shared Package
ML20066G012	List: ML20066G010 ML20066G014
References
TAC-49263, NUDOCS 8211190264
Download: ML20066G014 (1)

Text

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< . EMERGEf;CY CORE COOLING SYSTEf15 3/4.5.4 SUPPRESSION CHAMBER LIMITING CONDITION FOR OPERATION 3.5.4 The suppression chamber shall be OPERABLE with a minimum contained water volume of 653,000 gallons, equivalent to a level of 12'2", and the water level instrumentation channels alarms adjusted to actuate at a low water level > 12'2", except that the sappression chamber may be drained:

a. In OPERATIONAL CONDITION 4, provided that;

1. No work is performed which has a potential for draining the reactor vessel,

2. The reactor mode switch is locked in the Shutdown position, and

3. The core spray system is OPERABLE per Specification 3.5.3.1 with an OPERABLE flow path capable of taking suction from the OPERABLE condensate storage tank and transferring the water through the spray sparger to the reactor vessel.

b. In OPERATIONAL CONDITION 5, provided that the reactor mode switch is locked in the Refuel position, and:

1. The core spray system is OPERABLE per Specification 3.5.3.1 with an OPERABLE flow path capable of taking suction from the OPERABLE condensate storage tank and transferring the water through the spray sparger to the reactor vessel, or

2. The reactor vessel head is removed and the cavity is flooded, the spent fuel pool gates are removed, and the water leval is maintained within the limits of Specifica-tions 3. 9.9 and 3.9 10 l APPLICABILITY: CONDITION 1, 2, 3, 4 and 5.

ACTION:

a. In CONDITION 1, 2 or 3 with the suppression chamber water level less than the above limit, restore the water level to within the limit within 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> or be in at least H0T SHUTDOWN within the next 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> and in COLD SHUTDOWN within the following 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.

b. In CONDITION 4 or 5 with the suppression chanber drained and the conditic,ns of Specification 3.5.4.a or 3.5.4.b, as applicable, not satisfied, suspend all onerations in the reactor vessel and all positive reactivity changes. The provisions of Specification 3.0.3 are not applicable.

r211190264 821110 PDR ADOCK 05000366 P PDR HATCH - UNIT 2 3/4 5-9