ML20206C519

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Proposed Tech Specs,Revising Action Requirement for Inoperable Diesel Generator to Reduce Possibility of Abusive Testing of Remaining Operable Diesel Generator
ML20206C519
Person / Time
Site: Vogtle Southern Nuclear icon.png
Issue date: 11/07/1988
From:
GEORGIA POWER CO.
To:
Shared Package
ML20206C479 List:
References
NUDOCS 8811160312
Download: ML20206C519 (2)
v • d • e


Text

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3/4.8 ELECTRICAL POWER SYSTEMS 3/4.8.1 A.C. SOURCES OPERATING .

LIMITING CONDITION FOR OPERATION

3. 8.1.1 As a minimum, the following A.C. electrical power sources shall be OPERABLE:

a.

Two physically independent circuits between the offsitt transmission network and the onsite Class 1E Distribution System, and ,

b. Two separate and independent diesel generators, each with:
1) A day tank containing a minimum volume of 650 gallons (52% of instrument span) of fuel (LI-9018, LI-9019),

i

2) A separate Fuel Storage System containing a minimum volume of

~

68,000 gallons of fues (76% of instrument span) (LI-9024, LI-9025), and t

3) A separate fuel transfor pump, APPLICABILITY: MODES 1, 2, 3, and 4.

ACTION:

a.

With one offsite circuit of the above-required A.C. electrical po.er i sources inoperable, demonstrate the OPERABILITY of the romaining A.C.

sources by performing Surveillance Requirement 4.8.1.1.1.a within 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> and at least once per 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> thereafter. If either diesel 4

)

generator has not been successfu1*,y tested within the past 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />,

. demonstrate its OPERABILITY by performing Surveillance Requirements .

4.8.1.1.2.a.4 and 4.8.1.1.2.a 5 for each such diesel generator, separately, within 24 haurs unless the diesel generator it, already operating.

. Restore the offsite circuit 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 STAND 8Y 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 COLD SHUTDOWN within the following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />.

b. With either diesel generator inoperable, demonstrate the OPERABILITY I of the above required A.C. offsite sources by performing Surveillance i
  • Requirement 4.8.1.1.La within 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> and at leas t once per 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br />  ;

thereafter. If the diesel generator became inoperable due to any cause

~o other than preplanned proyective maintenance or testing, demonstrate  !

1 Q the OPERASILITY of the remaining 0PERA8LE diesel generator by perform- i So ing Surveillance Requirements 4.8.1.1.2.a.4 and 4.0,1.1.2.a.5 within  !

24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> *#. Restore the inoperable diesel generator to GPERABLE status Nu  :

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 STANOBY within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> i

%g and in C00 SHUTDOWN within the following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />. '

i O

) *Thistestisrequiredtobecon91stedrefiYardless of.when the inoperable g4 diesel generator is restored to OPERA 8IL .

  1. The diesel shall not be rendered inoperable by activities performed to '

support testing pursuant to the Action Statement (e.g., an air roll)_. M kss

& 4.yn~ 'c afiesel is ret. core / 16 C P f f d 6/ f > @ sdf r To f4c fc~>ny.

t V0GTLE - UNIT 1 3/4 8-1 '

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ELECTRICAL POWER SYSTEMS LIMITING CONDITION FOR ODERATION ACTION (Continued) c.

With one offsite circuit and one diesel generator of the above required A.C. electrical power sources inoperable, demonstrate the OPERABILITY '

of the remaining A.C. offsite source by performing Surveillance Re-quirement 4.8.1.1.1.a within 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> and at least once per 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> thereaf ter, and,' if the diesel generator became inoperabie due to any cause other than preplanned preventative maintenance or testing, demon-strate the OPERABILITY of the remaining OPERABLE diesel generator by performing Surveillance Requirements 4.8.1.1.2.a.4 and 4.S.1.1.2.a.5 within 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> *, unless the OPERABLE diesel generator is already operating #. Restore at least one of the inoperable sources to OPERABLE status within 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 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 COLD SHUTDOWN within the following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />. Restore the other A.C. power source (offsite circuit or diesel penerator) to OPERABLE status in accordance with the provisions of 3.8.1.1, Action Statement a or b, as appropriate, with the time requirement of that Action Statement bat d on the time of initial loss of the remaining inoperable A.C. power source. A successful test of diesel generator OPERABILITY per Surveillance Requirements 4.8.1.1.2.a.4 and 4.8.1.1.2.a 5 performed under the Action Statement for an OPERABLE diesel generator or a restored to OPERABLE diesel generator satisfies the diesel generator test requirement of Action Statement a or b.

d. With cne diesel generator inoperable in addition to ACTION b. or c.

above, verify that:

1. All required systems, subsystems, trains, components, and devices thav. depend on the remaining OPERABLE diesel generator as a source of emergency power are also OPERABLE, and
2. When in MODE 1, 2, or 3, the steam-driven auxiliary feedwater pump is OPERABLE. --

If these conditions are not satisfied within 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> be in at least .

HOT STANDBY following 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 COLD SHUT 00WN within the 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />.

e. With two of the above required offsite A.C. circuits inoperable, demon-strate the OPERA 8ILITY of two diesel generators separately by perform-ing the requirements of Specification 4.8.1.1.2.a.4 and 4.8.1.1.2.a.5 within 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> #, unless the diesel generators are already operating; restore at least one of the inoperable offsite sources to OPERABLE status within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> or be in at least HOT STANOBY within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />. Following restoration of one offsite source, follow Action Statement a with the time requirement of that Action Statement based
  1. The diesel shall not be rendered inoperablo by activities performed to support testing pursuant to the Action Statement (e.g. , an air rollb%Au f4c inefersMc diese/ ts re&nn/ h CAWMW hh frier M f4c Rfsy, V0GTLE - UNIT 1 3/4 8-2
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