ML20247E097

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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
ML20247E097
Person / Time
Site: Vogtle  Southern Nuclear icon.png
Issue date: 05/19/1989
From:
GEORGIA POWER CO.
To:
Shared Package
ML20247E095 List:
References
NUDOCS 8905260124
Download: ML20247E097 (4)
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Text

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ENCLOSURE y PLANT V0GTLE --UNITS 1,'2 .

g' NRC DOCKETS 50-424, 50-425 .!

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OPERATING LICENSES NPF-68, NPF-81 .-

REQUEST TO REVISE TECHNICAL SPECIFICATION 3.8.l'.l' J PROPOSED ~ TECHNICAL SPECIFICATION PAGES  ;

The proposed . amendment to the Technical Specifications-(Appendix l A to Operating Licenses NPF-68 and NPF-81) would be incorporated as follows: q Remove Page Insert Page  !

3/4.8-1 3/4 8-1 1 3/4 8 .3/4 8-2 3/4 8-2a i

8905260124 890519 PDR P-ADOCK 05000424 PDC

l 3/4.8 ELECTRICAL POWER SYSTEMS l

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 offsite transmission network and the onsite Class IE Distribution System, and
b. Two separate and inden9ndent diesel generators, each with:
1) A day tank containing a minimum volume of 650 gallons of fuel (52% of instrument span) (LI-9018, LI-9019),
2) A separate Fuel Storage System containing a minimum volume of 68,000 gallons of fuel (76% of instrument span) (LI-9024, LI-9025), and
3) A separate fuel transfer pump, APPLICABILITY: MODES 1, 2, 3, and 4.

ACTION:

a. With one offsite circuit of the aoove-required A.C. electrical power sources inopere'u le, demonstrate +.h? OPERABIl H i or the icmolning A.C.

sources by performing Survciilance Requirement 4.8.1.1.1.a within I hour 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 generator has not been successfully 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 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> unless the diesel generator is 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 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 />.

b. With either diesel generator inoperable, demonstrate the OPERABILITY of the above required A.C. offsite sources by performing Surveillance Requirement 4.8.1.1.1.a within I hour 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 the diesel generator became inoperable due to any cause other than preplanned preventive maintenance or testing, demonstrate the OPERABILITY of the remaining OPERABLE diesel generator by perform-ing Surveillance Requirements 4.8.1.1.2.a.4 and 4.8.1.1.2.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 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 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 />.
*This test is required to be comoleted regardless of when the inoperaole diesel generator is restored to OPERABILITY.

"The diesel shall not be rendered inopera0le by activities performed to support testing pursuant to the ACTION Statement (e.g., an air roll) unless the inoceraole diesel is returned to OPERABLE status prior to the testing.

V0Gil.E UNITS - ; L ^ 3/4 6-1

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L ELECTRICAL' POWER SYSTEMS-LIMITING CONDITION FOR OPERATION 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-l- quirement-4.8.1.1.1.a.within I hour 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 /> i

thereafter, and, if the diesel generator became inoperable due to any cause other than preplanned preventative maintenace or testing, demon-strate the OPERABILITY of the remaining OPERABLE diesel generator by

< performing Surveillance Requirements 4.8.1.1.2.a.4 and 4.8.1.1.2.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 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 withir 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 generator) 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 based on the time of initial loss of the remaining inoperable A.C. power source. A succhsful test of diesel generator

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OPERABILITY par Surveillance Requirements 4.6.!.l.2.a.4 Or.d 4.8.l'.l.2.a.5 performed under the ACTION Statement for an DPERABLE aiesel generator or a restored to OPERABLE diesel genarator satisf 93 the diesel generator test requirement of ACTION Statement a or b.

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

above, verify that:

- 1. All required systems,-subsystems, trains, components, and devices that depend on the remaining OPERABLE diesel generator a:, 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 tnese 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 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 J following 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 OPERABILITY 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 l

"The diesel shall not be rendered inoperable by activities performed to support testing pursuant to the ACTION Statement (e.g., an air roll) unless the inoperable diesel is returned to OPERABLE status prior to the testing.

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'/0GTLE UNITS - i & 2 3/4 3-2  :

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4 ELECTRICAL POWER SYSTEMS LIMITING CONDITION FOR OPERATION ACTION (Continued) 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; restcre at least one of the inoperable offsite sources to OPERABLE status witnin 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 STANDBY 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 l

'The diesel shall not be rendered incoerable by activities performed to support testing pursuant to the ACTION Statement (e.g., an air roll) unless

ne inoperable diesel is returned to OPERABLE status prior to the testing.

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l i;GTLE UNITS - i i 2 3/4 3-Za L____.__ _ _ _ _ _ _ _ . _ _ . _ . _ __ _ _ _]

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