ML20055H945

Proposed Tech Specs Re Electrical Power Sys

ML20055H945
Person / Time
Site:	Millstone
Issue date:	07/24/1990
From:	NORTHEAST NUCLEAR ENERGY CO.
To:
Shared Package
ML20055H944	List: ML20055H945
References
NUDOCS 9007310186
Download: ML20055H945 (1)

Text

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(( ' ?;i .* ELECTRICAL POWER SYSTEMS,

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• IMITING CONDITION FOR OPERATION ACTION (continued).

c.- With' one offsite circuit and one diesel generator inoperable, demonstrate the OPERABILITY of the remaining A.C. sources by.

a" Lperforming Surveillance Requirement 4.8.1.1.1.a within one hour and at least once )er 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> thereafter;vand-if the diesel generator became inopera)le due to any cause other than preplanned m ,  : preventative maintenance or testing, demonstrate the OPERABILITY of

'the remaining OPERABLE diesel generator by performing Surveillance

, Requirement 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 /> *; restore one of the' inoperable sources to OP'J RABLE 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 toe following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />. Restcre~ the other A.L. power: source

~ -(offsite circuit or dieel generator) to:0PERABLE status in-accordance with the provisiens of_ Section 3.8.1.1 Action Statement a or b, as a?propriate with-the time requirement of that Action Statement )ased on the time of initial loss of the remaining-inoperable 'A.C. - power source. A successful test of diosel generator OPERABILITY per Surveillance Requirement 4.8.1.1.2.a.5 performed under this Action Statement for an OPERABLE diesc'. Jenerator or'a restored-to OPERABLE diesel generator satisfies the dieselagenerator

' test requirement of Action Statement a or b.

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With one diesel generator inoperable, in addition to ACTION b or c l'

-d, above, verify'that:

1. All required systems subsystems, trains, components, and

' devices that' depend on the remaining OPERABLE diesel generator as a source 'of emergency power areL also ' OPERABLE, and

2. When ln MODE 1, 2, or 3, the steam-driven auxiliary feedwater

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-pump s 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 />,1be 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 f following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />. l

e. With two of the required offsite A.C. circuits ino'perable, demon- '

strate'the OPERABILITY of t+ diesel generators by sequentially P'7

performing Surveillance Requirement 4.8.1.1.2.a.5' on both diesel I generators 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 one of'the' inoperable =offsite sources to OPERABLE 1 5 bo- status withrn L4 hours or be in at least HOT STANDBY within ,the next

%CM 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />. - Following re.itoration of one offsite source, follow Action j

,. Statement >a with the time requirement of that Action Statement. based o{k o .on the time of initial loss of the remaining inoperable offsite A.C. .

circuit. A successful test (s) of diesel generator OPERABILITY per '

'*o' Surveillance' Requirement 4.8.1.1.2.a.5 performed under this Action Statement- for the OPERABLE diesel gc erators satisfies the diesel

'[ generator test requirement of Action Statement a.

• This test is required to be completed regardless of when the inoperable h.Ediesel!generatorisrestoredtoOPERABILITY.

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