ML20046B481

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Rev to Proposed Tech Specs Re Feedwater Isolation Systems
ML20046B481
Person / Time
Site: Vogtle  Southern Nuclear icon.png
Issue date: 07/27/1993
From:
GEORGIA POWER CO.
To:
Shared Package
ML20046B479 List:
References
NUDOCS 9308040271
Download: ML20046B481 (1)


Text

_,

PLANT SYSTEMS j

MAIN FEEDWATER ISOLATION SYSTEMS TTMITING CONDITION FOR OPERATION 3.7.1.6 Four main feedwater isolation valves (MFIVs), four main feedwater regulating valves (MFRVs), and associated bypass valves shall be OPERABLE.

7@PLICABILITY:

  • MODES 1 AND 2, except when the MFIV, MFRV or associated bypass valve is closed and deactivated.

ACTION:

a.

With one

MFIV, MFRV, or associated bypass valve inoperable in one or more feedwater lines, operation may continue provided each inoperable valve is restored to OPERABLE status or closed in each feedwater line within 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br />.

Otherwise be in 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 />, - nd in "^"' t=2

^= eithin th-fell;;ies ", :.e b.

With no isolation system (each system consisting of a MFIV and its associated bypass valve or a.MFRV and its associated bypass valve) OPERABLE ** in any one feedwater line, restore at.least one isolation ' system in each feedwater line to OPERABLE status within 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> or be in HOT'-GHFPBOWN-within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />.

37'AND D y SURVEIT.TANCE REOUIREMENTS 4.7.1.6(a)

Each MFIV, BFIV, MFRV and BFRV shall be demonstrated OPERABLE by verifying full closure within 5 seconds when tested pursuant to Specification 4.0.5.

The provisions of 4.0.4~are not applicable ~for entry into MODE-2.

4.7.1.6(b)

For each inoperable valve, verify that it is closed or isoittted once per 7 days.

  • Each MFIV, MFRV, or associated bypass valve shall be treated independently.

VOGTLE UNITS-l'& 2 3/4 7-9a h

D 0

4 P

2.

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