ML030580311

Tech Spec Pages for Amendments 256 and 233 Shutdown Cooling

ML030580311
Person / Time
Site:	Calvert Cliffs
Issue date:	02/25/2003
From:	NRC/NRR/DLPM
To:
References
TAC MB6412, TAC MB6413
Download: ML030580311 (3)

Text

SDC and Coolant Circulation-Low Water Level 3.9.5 3.9 REFUELING OPERATIONS 3.9.5 Shutdown Cooling (SDC) and Coolant Circulation-Low Water Level LCO 3.9.5 Two SDC loops shall be OPERABLE, and one SDC loop shall be in operation.

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NOTES-----------------------

1. One SDC loop may be replaced by one spent fuel pool cooling loop provided it is lined up to provide cooling flow to irradiated fuel in the reactor core and the core heat generation rate is less than the heat removal capacity of the spent fuel cooling loop.

2. One required SDC loop may be inoperable for up to 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> for surveillance testing, provided that the other SDC loop is OPERABLE and in operation.

3. All SDC pumps may be de-energized for

• 15 minutes when switching from one train to another provided:

a. The core outlet temperature is maintained > 10OF below saturation temperature;

b. No operations are permitted that would cause a reduction of the Reactor Coolant System boron concentration; and

c. No draining operations to further reduce Reactor Coolant System water volume are permitted.

APPLICABILITY: MODE 6 with the water level < 23 ft above the top of the irradiated fuel assemblies seated in the reactor vessel.

CALVERT CLIFFS - UNIT 1 3.9.5-1 Amendment No. 256 CALVERT CLIFFS - UNIT 2 Amendment No. 233

SDC and Coolant Circulation-Low Water Level 3.9.5 ACTIONS CONDITION REQUIRED ACTION COMPLETION TIME A. One SDC loop A.1 Initiate action to Immediately inoperable, restore SDC loop to OPERABLE status.

OR A.2 Initiate action to Immediately establish Ž 23 ft of water above the top of irradiated fuel assemblies seated in the reactor vessel.

B. No SDC loop OPERABLE B.1 Suspend operations Immediately or in operation. involving a reduction in reactor coolant boron concentration.

AND B.2 Initiate action to Immediately restore one SDC loop to OPERABLE status and to operation.

AND B.3 Close all 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> containment penetrations providing direct access from containment atmosphere to outside atmosphere.

CALVERT CLIFFS - UNIT 1 3.9.5-2 Amendment No. 256 CALVERT CLIFFS - UNIT 2 Amendment No. 233

SDC and Coolant Circulation-Low Water Level 3.9.5 SURVEILLANCE REQUIREMENTS SURVEILLANCE FREQUENCY SR 3.9.5.1 Verify required SDC loops are OPERABLE and 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> one SDC loop is in operation.

SR 3.9.5.2 Verify SDC loop in operation is circulating 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> reactor coolant at a flow rate of

> 1500 gpm.

SR 3.9.5.3 Verify correct breaker alignment and 7 days indicated power available to the required SDC loop components that are not in operation.

CALVERT CLIFFS - UNIT 1 3.9.5-3 Amendment No. 256 CALVERT CLIFFS - UNIT 2 Amendment No. 233