ML20151D714

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Proposed Tech Specs Re Test Frequency of Emergency Diesel Generators
ML20151D714
Person / Time
Site: Shoreham File:Long Island Lighting Company icon.png
Issue date: 07/15/1988
From:
LONG ISLAND LIGHTING CO.
To:
Shared Package
ML20151D677 List:
References
NUDOCS 8807250209
Download: ML20151D714 (4)
v • d • e


Text

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7 -c-SNRC-1481 l

Actacht ent 2 Page 1 of 4 3/4.8 ELECTRICAL POWER SYSTEM 3/4.8.1 A. C '. SOURCES.

,A.C.

SOURCES - OPERATING LIMITING CONDITION FOR OPERATION 3.0.1.1 As a minimum, the following A.C.

electrical power sources shall be OPERABLE:

-l_

a.

Two physically independent circuits between the offsite transmission and the onsite Class 1E distribution system, and

.b.

Three separate and independent diesel generators, each with:

1.

Separate day fuel tanks containing a minimum of 275 gallons of fuel, 2.

A separate fuel storage system containing a minimum of 40,824 gallons of fuel, and 3.

At least one fuel transfer pump.

APPLICABILITY: OPERATIONAL CONDITIONS 1,2 AND 3.

ACTION:

a.

With one offsite circuit of the above required l

A.C. electrical power sources inoperable, demonstrate the OPERABILITY of the remaining A.C.

sources by performing Surveillance Requirement 4.8.1.1.1.n trithin 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 /> therna "er.

If any 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 W

separately within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.

Restore at least two

$$0 offsite circuits and all of the above required AO4 diesel generators to OPERABLE status within 72 i$$

hours or be in at least HOT SHUTDOWN within the

  1. O next 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> and in COLD SHUTDOWN within the gv following 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.

. N8 18 b.

With 2ne diesel generator of the above required l

jy@

A.C.

electrical power sources inoperable, og demonstrate the CPLAABILITY of the remaining A.C.

$qq sources by performing Surveillance Requirement l

-stated, except that the diesel generator need only be loaded to 1400lW.

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1 SNRC-1481

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Page 2 of 4 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 the diese l generator became inoperable due to any cause other than preplanned preventive mainter.ance or testing, demonstrate the OPERABILITY of the remaining OPERABLE diesel generators by performing Surveillance Requirements 4.8.1.1.2.a.4 and 4.8.1.1.2.a.5** separately for each diesel generator within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.*

Restore the 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 CHUTDOWN within the next 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> and in COLD SHUTDOWN within the following 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />, 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.

cources by performing Surveil-lance Requirement 4.8.1...l.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 a diesel generator became inoperable due to any cause other than preplanned preventive maintenance or testing, demonstrate t'le OPERiBILITY of the remaining OPERABLE die',el generators separately for each die.,el gene' ator by performing Surveillance Requiremen,s 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 />

  • fo; each diesel generator which has not teen succr.ssfully tested within the past 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.

Restora at least one of the inoperable A.C, 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 SHUTDOWN within the next 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> and in COLD SHUTDOWN within the following 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.

Restore at least two offsite circuits and all of the above required diesel generators to OPERABLE status within 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> from time of initial loss 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 /> and in COLD SHUTDOWN within the following 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />, d.

With one diesel generator of the above required l

A.C.

electrical power sources 4. nope rab: c, in addition to ACTION b or c, aboyc, verif;r within 2 l

hours that all required syttems, subsystems, trains, components, and devices that depend on the remaining diesel generators as a source of emer-gency power are also OPERABLE; otherwise, 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 /> and in COLD SHUTDOWN within the following 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.

This test is required to be completed regardless of when the inoperable diesel generator is restored to OPERABILITY.

The provisions of Specification 3.0.2 are not applicable.

Surveillance Requirement 4.8.1.1.2.c.5 shall be performed, as stated, except that the diesel generator need only be loaded to 1400kW.

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'SHRC-1 81

.o,

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Attaclment 2 Page 3 or 4 e.

With two of the above required offsite circuits l

inoperable, demonstrate the OPERABILITY of all of the above required diesel generators by performing Surveillance Requirements 4.8.1.1.2.a.4 and 4.8.1.1.2.a.5** for one diesel generator at a time, 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 circuits 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 SHUTDOWN within the'next 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br />.

With only one offsite circuit restored to OPERABLE status, restore at least two offsite circuits to OPERABLE status within 72. hours from time of initial loss 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 /> and in COLD SHUTDOWN within the following 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.

A successful test (s) of diescl generator OPERABILITY per Suiveillance Requirements 4.8.1.1.2.a.4 and 4.8.1.1.2.a.5** performed under this ACTION t

statement for the OPERABLE diesel. generators satisfies the diesel generator test requirements of ACTION a.

f.

With two or more of the above required diesel I

generators inoperable, demonstrate the OPERABILITY of the remaining A.C.

sources by performing Surveillance Requirement 4.8.1.1.1.a within one hour and at least orice per 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> thereafter, and Surveillance Requirements 4.8.1.1.2.a.4 and 4.8.1.1.2.a.5**,

if applicable, within 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br />.*

Restore at least all but one of the above required insperable diesel generators to OPERABLE status within 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 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 /> and in COLD SHUTDOWN Within the following 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.

Restore all of the above required diesel generators to OPERABLE status within 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> from time of initial loss 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 /> and in COLD SHUTDOWN within the following 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.

t L'

l This test is required to be

mplated regardless of when the inoperable diesel generator is restored to OPERABILITY.

The provisions of Specification 3.0.2 are not applicable.

Surveillance Requirement 4.8.1.1.2.a.5 nhall be performed, as stated, except that the diesel generator need only be loaded to 140bkW.

3/4 8-2a L

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~ ~ -

SNRC-1481

Y.IN * "h -

Attachment.2 p<

Pago 4 of 4' TABLE 4.8.1.1.2-1 DIESEL GENERATOR TEST SCHEDULE

-Number.of Failures Number of Failures in Last 20 Valid Tests

  • Last_},00 Valid Tests
  • Test Frequency

_=1

<4 At least once-per 31 days

[

>2**

>5 At'least once;por 7 days

  • Criterio for determining number of failures and number of valid tests shall be in accordance with Pegulatory Position C.2.e of Regulatory Guide 1.108, Revision 1, August 1977 but determined on a per diesel generator basis.

Only valid-tests conducted after the OL issuance'date shall be included in the computation-of the "last 20/100 valid-tests".

Entry into this test schedule shall be made at the 31 day _ test frequency.

For the purposes of determining the required test frequency, the previous test

-failure count may be reduced to zero if a complete diesel overhaul to like-new condition is completed, provided that the overhaul _ including appropriate post-maintenance operation and testing, is specifically approved by the manufacturer and if acceptable reliability has been demonstrated.

The rellaEility criterion shall be the successful completion of 14 consecutive tests in a single series.

Ten of these tests shall be in accor-dance with the routine Surveillance Requirements 4.8.1.1.2.a.4 and 4.8.1.1.2.a.5, four tests, in accordance with the 184-day testing requirement of Surveillance Requirements 4.8.1.1.2.a.4 and 4.8.1.1.2.a.5.

If this criterion is not satisfied during the first series of tests, any alternate criterion to be used to transvalue the failure count to zero requires NRC approval.

    • The associated test frequency shall be maintained until seven consecutive failure free derands have been performed and the number of failures in the last 20 valid demands has been renaced to less than or equal to one.

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