ML20090H253

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Proposed Tech Specs,Revising 830819 Submittal Re Accident Monitoring Instrumentation
ML20090H253
Person / Time
Site: Sequoyah  Tennessee Valley Authority icon.png
Issue date: 10/24/1983
From:
TENNESSEE VALLEY AUTHORITY
To:
Shared Package
ML20090H249 List:
References
TVA-SQN-TS-48, NUDOCS 8310280027
Download: ML20090H253 (3)


Text

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' ENCLOSURE i

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REVISED PAGES OF PROPOSED TECHNICAL SPECIFICATIONS SEQUOYAH NUCLEAR PLANT UNITS 1 AND 2 8

TVA-SQN-TS-48(R1) i I

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8310280027 831024 PDR ADDCK 05000327 PDR p

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INSTRUMENTATION ACCIDENT MONITORING INSTRUMENTATION s

LIMITING CONDITION FOR OPERATION h 3.3.3.7 The accident monitoring instrumentation channels shown in Table 3.3-10 .

shall be OPERA 8LE.

APPLICABILITY: MODES 1, 2 and 3.

I ACTION:

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a. With the number of OPERABLE accident monitoring instrumentation channels, except for the RCS..subcooling margin monitor, less than the Required Number of Channels shown in Table 3.3-10, restore the inoperable channel (s) to OPERABLE status within 7 days, or be in at least HOT SHUTDOWN within the -

next 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br />.

b. With the number of OPERABLE accident monitoring instrumentation channels less than the MINIMUM CHANNELS OPERABLE requirements of Table 3.3-10, restore the inoperable channel (s) to OPERABLE status within 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br /> or be in at least HOT SHUTDOWN within the next 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br />.

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liith the subcooling margin monitor inoperable for more than 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br />, the minimum shift crew (per Table 6.2-1) will be increased by one member who shall be dedicated to and capable of determining the subcooling margin during an accident using existing instrumentation.

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SURVEILLANCE' REQUIREMENTS <

. 4.3.3.7 Each accident monitoring. instrumentation channel shall be demon- ..

strated OPERABLE by performance of the CHANNEL CHECK and CHANNEL CALIBRATION operations at the frequencies shown in Table 4.3-7.

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  • With the RCS subcooling margin monitor inoperable for less than 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> , 'the provisions of section 6.9.1.13.b are not applicable.

SEQUOYAH - UNIT 1 3/4 3-55

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INSTRUMENTATION ACCIDENT MONITORING INSTRUMENTATION LIMITING CONDITION FOR OPERATION h -

3.3.3.7 The accident monitoring instrumentation channels shown in Table 3.3-10 shall be OPERABLE.

APPLICABILITY: MODES 1, 2 and 3.

ACTION: -

a. With the number of OPERABLE accident monitoring instrumentation channels, except for the RCS.subdooling margin monitor, less than the Required Number of Channels shown in Table 3.3-10, restore the inoperable channel (s) to OPERABLE status within 7 days, or be in at least HPT SHUTDOWN within the next 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br />.
b. With the number of OPERABLE accident monitoring instrumentation channels less than the MINIMUM CHANNELS OPERABLE requirements of Table 3.3-10, restore the inoperable channel (s) to OPERABLE status within 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br /> or be in at least HOT SHUTDOWN within the next 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br />.

c.

W16h the subcooling margin monitor inoperable for more than 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br />, the minimum shift crew (per Table 6.2-1) will be increased by one member who shall be dedicated to and capable of determining the subcooling margin during an accident using existing instrumentation.

  • SURVEILLANCE' REQUIREMENTS -

4.3.3.7 Each accident monitoring. instrumentation channel shall be demon-strated OPERABLE by performance of the CHANNEL CHECK and CHANNEL CALIBRATION '

operations at the frequencies shown in Table 4.3-7.

s

  • With the RCS subcooling margin monitor inoperable for less than 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br />, the provisions of section 6.9.1.13.b are not applicable.

SEQUOYAH - UNIT 2 3/4 3-56 O 'W '9= 'S e O We 43 g,gg .m,e y e o M *Me+ mete p ag g ag.,, , ,

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