ML20206C519

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
Issue date:	11/07/1988
From:	GEORGIA POWER CO.
To:
Shared Package
ML20206C479	List: ML20206C476 ML20206C519
References
NUDOCS 8811160312
Download: ML20206C519 (2)

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),

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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.

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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

• This test is required to be completed regardless of when thts inoperable EOG is restored to OPERABILITY.

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