ML20045C344

Proposed Tech Spec 4.7.1.2.a.2 Supporting Request to Perform Turbine Driven Pump Surveillance Test at Secondary Steam Pressure Greater than or Equal to 865 Psig

ML20045C344
Person / Time
Site:	Summer
Issue date:	06/16/1993
From:	SOUTH CAROLINA ELECTRIC & GAS CO.
To:
Shared Package
ML20045C338	List: ML20045C337 ML20045C340 ML20045C344
References
NUDOCS 9306220390
Download: ML20045C344 (3)

Text

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Enclosure 1 i

TSP 930009 Page 1 PROPOSED TECHNICAL SPECIFICATION CHANGE - TSP 930009 VIRGIL C. SUMMER NUCLEAR STATION LIST OF AFFECTED PAGES Pdoe 3/4 7-4 er AO [ {._f.

PLANT SYSTEMS EMERGENCY FEEDWATER SYSTEM LIHITING CONDITION FOR OPERATION 3.7.1.2 At least three indepenoent steam generator emergency feedwater pumps and flow paths snall be OPERABLE with:

a. Two motor-driven emergency feedwater pumps, eacn capable of being powered from separate emergency busses, and

b. One steam turbine driven emergency feeowater oumo capable of being powered from an OPERABLE steam supply system.

APPLICABILITY: MODES 1, 2 and 3.

ACTION:

a. With one emergency feeowater pump inoperable, restore tne reouired emergency feeowater pumps to OPERABLE status within 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> or be in at least HOT STANDBY within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and in HOT SHUTDOWN within tne following 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />,

b. With two emergency feedwater pumas inoperable be in at least HOT STANDBY within 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and in HOT SHUTDOWN within the following 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />. .

c. With three emergency feedwater pumps inoperable, immediately initiate corrective action to restore at least one emergency feedwater pump to OPERABLE status as soon as possible.

SURVEILLANCE REOUIREMENTS

4. 7.1. 2 Eacn emergency feedwater pump shall be demonstrated OPERABLE:

a. At least once per 31 days by: ,

1. Verifying that each motor driven pumo develops a discharge pressure of greater than or equal to 1350 psig at greater than or equal to 90 gpm flow.

2. Verifying that the steam turoine driven pump develops a discharge pressure of greater than or ecual to 1330 psig at a flow of greater than or equal to 97 gpm when the secondary I steam supply pressure is greater than psig. The provisions of Specification 4.0.4 are not applicable. z

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3. Verifying that eacn non-automatic valve in the flow path that is not locked, sealed, or otherwise secured in position, is in its correct position.

SUMMER - UNIT 1 3/4 7-4

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I PLANT SYSTEMS EMERGENCY FEEDWATER SYSTEM LIMITING CONDITION FOR OPERATION 3 7.1.2 At least three independent steam generator emergency feedwater pumps and flow paths shall be OPERABLE with:

a. Two motor-driven emergency feedwater pumps, each capable of being powered from separate emergency busses, and

b. One steam turbine driven emergency feedwater pump capable of being powered from an OPERABLE steam supply system.

APPLICABILITY: MODES 1, 2 and 3.

ACTION:

a. With one emergency feedwater pump inoperable, restore the required emergency feedwater pumps to OPERABLE status eithin 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> or be in at least HOT STANDBY within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> Lnd in HOT SHUTDOWN within the following 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />.

b. With two emergency feedwater pumps inoperable, be in at least HOT STANDBY within 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and in HOT SHUTDOWN within the following 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />.

c. With three emergency feedwater pumps inoperable, immediately initiate corrective action to restore at least one emergency feedwater pump to OPERABLE status as soon'as possible.

SURVEILLANCE RE0UIREMENTS 4.7.1.2 Each emergency feedwater pump shall be demonstrated OPERABLE:

a. At least once per 31 days by:

1. Verifying that each motor driven pump develops a discharge 2

pressure of greater than or equal to 1350 psig at greater than or equal to 90 gpm flow.

2. Verifying that the steam turbine driven pump develops a  !

discharge pressure of greater than or equal to 1330 psig at a flow of greater than or equal to 97 gpm when the secondary steam supply pressure is greater than 865 psig. The provisions l of Specification _4.0.4 are not applicable.

3. Verifying that each non-automatic valve in the flow path that is not locked, sealed, or otherwise secured in position, is in its correct position.

SUMMER - UNIT 1 3/4 7-4 Amendment No.