Text

Proposed TS 3/4.8, Electrical Power Sys
	ML20126A391
Person / Time
Site:	Farley
Issue date:	12/11/1992
From:	; SOUTHERN NUCLEAR OPERATING CO.
To:	;
Shared Package
ML20126A389	List: ML20126A387; ML20126A391;
References
	NUDOCS 9212210031
	Download: ML20126A391 (42)
	v • d • e

-,

ATTACHMENT 1 PROPOSED CHANGED PAG 15 Unit 1 Revision Page IX Replace Page 3/4 8-1 Replace Page 3/4 8-2 Replace Page 3/4 8-3 Replace Page 3/4 8-6a Replace Page 3/4 8-6b Replace Page 8 3/4 0-2 Replace Unit 2 Revision Page 3/4 d-l Replace Page 3/4 8-2 Replace Page 3/4 8-3 Replace Page 3/4 0-7 Replace Page 3/4 8-8 Replace Page 8 3/4 0-2 Replace 9212210031 92.1211 PDR ADOCK 05000348 P

PDR

Unit 1 Annotated Pages e

h

1@EX LIMITING CONDITIONS FOR OPERATION AND SVRVEltlANCE RE0VIREMENTS SECTION PRI 3/4.8 ELECTRIfdl POWER SYSTEMS 3/4.8.1 A.C. SOURCES 0perating................................................

3/4 8-1 Shutdown.................................................

3/48-56h 3/4.8.2 ONSITE POWER DISTRIBUTION SYSTEMS A.C. Distribution - Operating............................

3/4 8-66 A.C. Distribution - Shutdown.............................

3/4 8-7 Auxiliary Building D.C. Distribution - Operating.........

3/4 8-8 Auxiliary Building D.C. Distribution - Shutdown..........

3/4 8-11 Service Water Building D.C. Distribution - Operating.....

3/4 8-12 FARLEY-UNil 1 IX AMENDMENT NO.

- - -_= _

2/4.8 ELECTRICAL POWER SYSTEMS 3/4.8.1 A.C. SOURCES OPERATlyG 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 from the offsite transmission network to the switchyard and two physically independent circuits from the switchyard to the onsite Class IE distribution system, and b.

Two separate and independent diesel generator sets (Set A: DG l-2A and DG-lC, Set B: DG-1B and DG-20) each with-1.

Separate day tanks containing a minimum volume of 900 gallons of fuel for the 4075 kw diesel generators and 700 gallons of fuel for the 2850 kw diesel generators.

2.

A separate fuel transfer pump for each diesel.

c.

A fuel storage system consisting of four, independent storage tanks each containing a minimum of 25,000 gallons of useable fuel.*

l APPLICABILITY: MODES 1, 2, 3 and 4.

ACTION:

a.

With only one an offsite A.C. circuit inoperable, demonstrate the OPERABILITY of the remaining of-fs4-te A.C. sources by performing _

Surveillance Requirement 4.8.1.1.1.a onithe re.maining 'offsite A.C..

circuit within 2' hours B-houes and at'least once per 8 ~24 hours

~

thereafter;r and'by performing Surveillance Requirement 4.8.1.1.2.a.4, 44 ems 1, 2, 3, 4, and-6 on.both diesel generator sets +-2A-and-4B within 24 8 hour9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months s-unless such surveillance has been performed within the p'revious 24: hours' 7wlays or, t_he diesel gendrators aFe already operating.

Restore at'least two offsite circuits to OPERABLE status within 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months 7-days or be in at least HOT STANDBY within the next 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months and'in' COLD

~

SHUTDOWN within the following 30 hours3.472222e-4 days 0.00833 hours 4.960317e-5 weeks 1.1415e-5 months .

The-prov4e4 ens-eLSpee+f4est4en ar0r4-are-not-app 44eaMer b.

With one diesel generator set inoperable, fee-reasons-ethee-than-the year 4y-scheduled-ma4ntenanee ** demonstrate the OPERABILITY operaMMty r

of the remaining A.C. sources'C. circuits within 2Thours 8-houes and at by. performing SurveilTa;nce Requirement 4.8.1.1.1.a on bothr ffsite A.

o least once per'8 Whours thereafter -and. If the diesel ~generatoriset

~

r becameinoperablo1duelto?anyLcau's'eether)thanpreplannedpreventive maintenance or: testing,6 demonstrate"the20PERABILITYsof thes remaining diesel generator. set by performing Surv'sillance Requireme~nt '

4~.8.1.1.2.a.4',^44emi1,2,3,4,and-6onthelremainingidiessligenerator-7

One operable fuel storage tank must be available for each required diesel generator.

Mf-tMs-scheduled-ma4ntenanee-exceeds-10-daysr-the-d4c';cl genceater-set-must-

-be-dec4ared-4*operablev FARLEY-VNIT 1 3/4 8-1 AMENDMENT NO.

i i

11ECTRICAL POMER SYSTEMS ACTION (Continuedl

' set' on-twet-44esel-generatoes within 24 M hours, unless the diesel i

generators'are already. operating.

Restore the inope_rable diesel generator set to OPERABLE status within 10 48 days or bs in at least HOT STANDBY SHUT 00WN within the next 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months and in COLD SHUTDOWN within the following 30 hours3.472222e-4 days 0.00833 hours 4.960317e-5 weeks 1.1415e-5 months .

The provisions of Spec,ification 3.0.4 are not applicable if only one of the four individual dies 61 generator units is inoperable.

c.

With one offsite A.C. circuit and one diesel generator set of-the-above required A.C. cledt4eal-powee-seueces inoperable, fee-eeasons-ether i

then-the-yearly-schedu1Nintenance ** demonstrate the OPERABILITY of r

the rcmaining of-fete A.q. sources by performing Surveillance Requirement 4.8.1.1.1.a onLthelEremaining offsite'A.C. circuit within 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months and at.least'once'per 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months thereafter.::Ifcthe diesel generator set became' inoperable due to any cause other than preplanned prevent 1_ve maintenance or-testing, demonstrate the OPERABILITY' of the remaining diesel generator _ set.by p~erforming Surveillance Requirement 4.8.1.1.2.a.4, 44ch; 1, 2, 3, 4, end-6 on two* the remaining diesel generators set within 8 H hours',lunless the' diesel 1 generators are alrea'dy operating.

Restore at least one of the ino'perable~ A.C. sources to'0PERABLE status within 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months or be in at least H0T STANDBY within the next 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months and in COLD SHUTDOWN within the following 30 hours3.472222e-4 days 0.00833 hours 4.960317e-5 weeks 1.1415e-5 months .

Restore the other A.C. powee source (offsite A.C? cin.uit or diesel generator set) to OPERABLE status in accordance with the provisions of Section 3.8.1.1 Action Statements._a or b, as appropriatei with-the time requirement'of the-action statement ~ based on the~ time of initial loss of the remaining 11noperable.A.C. source.

d.

With both two of the above-eequi+ed offsite A.C. circuits inoperable, demonstrate the OPERABILITY of th_e~ remaining A.C., sources both-d4esel generatee-set + by performing Surveillance Requirement 4.8.1.1.2.a.4, Ton both diesel generator sets within 8 wMh-B hours,t unless the diesel generators are already ~~operatingn Reestore at least one of the inoperable offsite A.C. circuits sourees to OPERABLE status within 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months or be in at lbast HOT STANDBY within the next 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months .

. ith only W

one offsite A.C. circuit source restored, restore both thejother offsite A'C. circuits to OPERABLE status within 72 h'ours 7-days from

~

time of initial loss or be in at least HOT STANDBY'within the next 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months and in COLD SHUTDOWN within the following 30 hours3.472222e-4 days 0.00833 hours 4.960317e-5 weeks 1.1415e-5 months .

e.

With both of the above-required diesel.geperator. sets inoperable, demonstrate the OPERABILITY of the remaining 'A.C. sources two-off:ite A.C. cieeun+ by performing Surveillance" Requirement _4'.8.'l.l.1.a ony both offsite A.C; circuits ~within 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months and at::least once'per18 hours thereaf ter;;and: by ' performing Surveill ance ' Requ'irement '4 ~.8'. l. l' 2.a ;4,

+1cm; 1, 2J3, 4, cad 6 on one allirema'ining diesel generators -in-a u'nless the" diesel diesel genercter ct en the Other Unit Within 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months ,bne of the generatorsarelaireadyfoperati.ng.lt Reestore at least inoperable diesel' generator' sets to OPERABLE status:

The-two-diesel-generatoes-ehosen-to=bc tested-sha-ll verify that-et-least-one 7(+a4n-of-t-0GA/ shutdown 1004 is ccpable of being powered et ccch UfH-tr

- f f-th+s-scheduled-ma4ntenance-exceeds-10-days, the dicscl geneeater-set-must be-de<:4ered-4eoperablev FARLEY-UNIT 1 3/4 8-2 AMENDMENT N0.

fl ETRICAL POWER SBTEMS ACTION (Continued) 1.

Within 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months or be in at least HOT STANDBY within the next 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months if (DG l-2A and DG-20) or (DG-1B and DC-lC) or (DG-10 and DG-i

20) are inoperable; or 2.

Within 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months or be in at least HOT STANDBY within the next 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months if DG l-2A and DG-1B are inoperable; or 3.

Within 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months or be in at least HOT STANDBY within the next 6 i

hours if three or more diesel generators are inoperable.

Restore both Jiesel generator sets to OPERADLE status within 10 48 days from time of initial loss or be in at least H01 STANDBY within the next'6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months and in COLD SHUTDOWN within the following 30 hours3.472222e-4 days 0.00833 hours 4.960317e-5 weeks 1.1415e-5 months .

SVRVEllLANCE RE0VIREMENTS 4.8.1.1.1 Each of the above required indcoendent circuits between the offsite transmission network and the onsite Class IE distribution system shall be:

I a.

Determined OPERABLE at least once per 7 days by verifying correct breaker alignments, indicated power availability, and b.

Demonstrated OPERABLE at least once per 18 months during thutdown by transferring unit power supply from the normal circuit to the alternate circuit.

4.8.1.1.2 Each diesel generator ' set shall be demonstrated OPERABLE:

i a.

In accordance with the frequency specified in Table 4.8-1 on a STAGGERED TEST BASIS by:

1.

Verifying the fuel level in the day tank.

2.

Verifying the fuel level in the fuel storage tanks.

3.

Verifying the fuel transfer pump can be started.and transfers fuel from the storage system to the day tank.

l 4.

Verifying the diesel starts and accele','ates to at least 900 rpm for the 2850 kw generator and 514 rpm for the 4075 kw generators in less than or equal to 12 seconds. The generator voltage and I

frequency shall be 2 3952 volts and a 57 Hz within 12 seconds after l

the ' start signal and operates for 5 minutes.

l 5.

Verifying the generator is synchronized, loaded to 2700-2850 kw for the 2850 kw generator and 3875-4075 kw for the 4075 kw generator and operates for greater than or equal to 60 minutes.

l FARLEY-UNIT 1 3/4 8-3 AMENDMENT N0.

j l

l l-

~

TABLE 4 0-1 DIESEL GENERATOR TEST SCHEDULE #ER-01EGEM NUMBER OF FAILURES IN NUMBERTOF'FMLURES? !N LAST 20 M0 VAllD TESTS

L8jil_l@_yfLID TESTS

TEST FRE0VENCY s; I s (4

At-4 east once per 31 M days 2: 2** 3 E5 At-leaet-once per 7 days f

1 h

Criteria for determining number of failures and number of valid tests shall be in accordance with Regulatory Position C.2.e of Regulatory Guide 1,108.

Revisica 1, Augn:t 1077, where the-4ast 100 tests-are but 'oetermined on a per diesel generator basis, fee-the purpo:es-ef-this test'~i;shedule, caly vclid tests-eendueted-af4cr the OL issuanee-date-shall be included in the temput-at4en i

ef-the "le:t IOC -velid-te:t:."

Fo r (thiefpu rid f o f?dhlirin t hihs [ths rb'ciu l fed f tMtMrsdusnci$ t hsl prsVi od"s'iteit failure countimay be:freducedi:toizero tif ca~ complete diese1Eoverhau13to like-new conditionlisTcompleted,tpfhvidedithatitheioverhisihincludingiap)ropriste posts maintenance;loperationcandstesting M s):specificallyfapprovedfby;t1ermanufactdrer Anduif # acceptable 1reliabQity has;beenidemonstrated: iThe7 reliability 1ctiterion shallibeithe successfulGbmpletionTofl14!consecutiVeMistsiiMa?singlelseriesa Thessitestsishal.1:fbehin?s6cordancei'withithetroutine5 Surveillance Requirements ~

4;8.112aL4)Tandl4:,8.lylu2a;5)r ;If?this criterionji.sinot3 satisfied?duri'ngiths first seriesfof tests [Any:alternatelcriterionItolbeTuseditoirsiUrn::theifailure

~

coun tL.lt olz ergegu i r,e s j NRC) a ppro;y,al t

~ ' ' ~ " ~ ~

' ~ ' ' ' ' ~ ~ ~ ~ ~ ~ '

- l:iihi:sssocisisditssfiffshiisncy7shs114eYniinfifhsd untilfsbilen?consichths failure freePdsmand'sVhave been performedEA 20ivalid;demandst ha;sibeenheduceditRone) nf~ths/ number ofy^fhilures in'theiliit

~"~

~^

~ ~ " ^ "

FARLEY-UNIT 1 3/4 8-6 a AMENDMENT N0. M l

ELECTRICAL PQWER SYSTEMS M ID M LIMITINGCON01QqNFOROPERATION s

3.8.1.2' As a minitum, ti:e following A.C. electrical power sources shall be OPERABLE:

a.

One circuit from the offsite transmission network to the switchyard and from the switchyard to the onsite Class IE distribution system, and b.

Diesel generator 1-2A, IC or IB each with:

1.

A day tank containing a minhrn volume of 900 gallons of fuel for the 4075 kw diesci.;e>. ator and 700 gallons of fuel for the 2850 kw diest

cn: rator.

2.

A fuel storage tank containing a minimum volume of 25,000 gallons of usesble fuel, and 3.

A fuel transfer pump.

APPLICABILITY: MODES 5 and 6.

ACTION:

With less than the above minimum required A.C. electrical power sources '0PERABLE, suspend all operations involving CORE ALTERATIONS or positive reactivity changes until the minimum required A.C. electrical power sources are restored to OPERABLE status.

SURVEILLANCE RE0UIREMENTS 4.8.1.2 The above required A.C. electrical power sources shall be demonstrated OPERABLE by the performance of each of the Surveillance Requirements of 4.8.1.1.1 and 4.8.1.1.2 except for requirement 4.8.1.1.2.a.5.

s FARLEY-UNIT 1 3/4 8-6 b AMENDMENT NO.

APPLICAB[UJ1 BASES 3.0.5 This specification delineates what additional conditions must be satisfied to permit operation to continue, consistent with the ACTION state-ments for power sources, when~ a normal or emergency power source is not OPERABLE.

It specifically prohibits operation when one division is inoperable because its normal or emergency power source is inoperable and a system, subsystem, train, component or device in another division is inoperable for another reason.

The provisions of this specification permit the ACTION statements associated with individual systems, subsystems, trains, components, or devices to be consistent with the ACTION statements of the associated electrical

)ower source.

It allows operation to be governed by the time limits of tie ACTION statement associated with the Limiting Condition for Operation for the normal or emergency power scurce, not the individual ACTION statements for each system, subsystem, train, component or device that is determined to be inoperable solely because of the inoperability of its normal or emergency power source.

For example, Specification 3.8.1.1 rq#es in part that two emergency diesel generators be OPERABLE. The ACTIOM statement provides for a 72 ho w 10Eday out-of-service time when one emer;ency dim! gererator is not OPERABLE.

If the definition of OPERABLE were applied witid.t consideration of Specifi-cation 3.0.5, all systems, subsystems, train:, components and devices supplied by the inoperable emergency power sourra would also be inoperable.

This would dictate invoking the applicable. ACTION statement for each of the applicable Limiting Conditions for Operation. However, the provisions of Specifi-cation 3.0.5 permit the time limits for continued operation to be consistent with the ACTION statement for the inoperable emergency diesel generator instead, provided the other specified conditions are satisfied.

In this case, this would mean that the corresponding normal power _ source must be OPERABLE, and all redundant systems, subsystems, trains, components, and devices must be OPERABLE, or otherwise satisfy Specification 3.0.5 (i.e., be capable of performing their design function and have at least one normal or one emergency j

power source OPERABLE).

If they are not satisfied, action is required in accordance with this specification.

As a further example, Specification 1.8.1.1 requires in part that two phystrally independent circuits between the offsite transmission network and L

the ontite Class IE distribution system be OPERABLE. The ACTION statement l

provifes a 24 hour2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months out-of-service time when both required offsite circuits are L

not OPERABLE.

If the definition of OPERABLE-were applied without consideration of Specification 3.0.5, all systems, subsystems, trains, components and devices L

supplied by the inoperable normal power sources, both of the offsitc circuits, would also be inoperable.

This wocid dictate invoking the applicable ACTION statements for each ot' the applicatle LCOs.

However, the provisions of Specifi--

cation 3.0.5 permit the time limitt for conti,~.sd operation to be consistent l

with the ACTION statement for the inoperable nornd power sources instead, l=

provided the other specified conditions are satisfied.

In case, this would l

FARLEY-UNIT 1 B 3/4 0-2 AMENDMENT NO.

Unit 1 Typed Pages

INDEX

.{j,MJJJNGCONDITIONSFOROPERATIONANDSVRVElllANCERE0VIREMENTS

- SECT 10tl EASE-3/4.8 ELECTRICAL POWER SYSTEMS 3/4.8.1 A.C. SOURCES 0perating................................................

- 3/4 8-l' Shutdown.................................................

3/4 8-6b l-3/4.8.2 ONSITE POWER DISTRIBUTION SYSTEMS A.C. Distribution -

Operating............................

3/4 8-6c l

A.C. Distribution -

Shutdown.............................

3/4 8-7 Auxiliary Building D.C. Distribution - Operating.........

3/4 8-8 Auxiliary Building D.C. Distribution - Shutdown..........

3/4 8-11 Service Water Building D.C._ Distribution - Operating.....

3/4 8-12 FARLEY-VNIT 1 IX AMENDMENT NO.

}]4.8 ELECTRICAL POWER SYSTEMS 1/4.8.1 A.C. SOURCES OPERATING LIMITING CONDITION t0R OPERA [ ION 3.8.1.1 As a minimum, the following A.C. electrical power sources shall be OPERABLE:

a.

Two physically independent circuits from the offsite treasmission network to the switchyard and two physically independeat circuits from the switchyard to the onsite Class lE distribution system, and b.

Two separate and independent diesel generator sets (Set A: DG'l-2A and DG-lC, Set B: DG-1B and DG-20) each with:

1.

Separate day tanks containing a minimum volume of 900 gallons of fuel for the 4075 kw diesel generators and 700 gallons of fuel for the 2850 kw diesel generators.

2.

A separate fuel transfer pump for each diesel, c.

A fuel storage system consisting of four, independent storage tanks each containing a minimum of 25,000 gallons of useable fuel.*

l l

6PPLICABILITY-MODES 1, 2, 3 and 4.

l bCTION:

a.

With only one offsite A.C. circuit operable, demonstrate the OPERABILITY l

of the remaining A.C. sources by performing Surveillance Requirement 4.8.1.1.1.a on the remaining offsite A.C.-circuit within 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months and at least once per 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months thereafter; and by performing Surveillance Requirement 4.8.1.1.2.a.4, on both diesel generator sets within 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months unless such surveillance has been performed within the previous 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months or the diesel-generators are already operating.

Restore at least two j

offsite circuits to OPERABLE status within 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months or be in at least HOT STANDBY within the next 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months and in COLD SHUTDOWN within the following 30 hours3.472222e-4 days 0.00833 hours 4.960317e-5 weeks 1.1415e-5 months , b.

With one diesel generator set inoperable, demonstrate the OPERABILITY of the remaining A.C. sources by performing Surveillance Requirement 4.8.1.1.1.a on both offsite A.C. circuits within 2 hour2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months s-and at least-once per 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months thereafter.

If the diesel generator set became inoperable due to any cause other than preplanned preventive maintenance or testing, demonstrate the OPERABILITY of the remaining diesel generator set by performing Surveillance Requirement 4.8.1.1.2.a.4, on the remaining diesel-generator set within 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months , unless the

One operable fuel storage tank must be available for each _ required diesel generator.

FARLEY-UNIT 1 3/4 8-1 AMENDMENT N0.

ELECTRICAL POWER SYSTEMS ACTION (Continuedl diesel generators are already operating.

Restore the inoperable diesel generator set to OPERABLE status within 10 days or be in at least HOT STANDBY within the next 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months and in COLD SHUTDOWN within the following 30 hours3.472222e-4 days 0.00833 hours 4.960317e-5 weeks 1.1415e-5 months . The provisions of Specification 3.0.4 are not applicable if only one of the four individual diesel generator units is i

inoperable.

c.

With one offsite A.C. circuit and one diesel generator set inoperable, demonstrate the OPERABILITY of the remaining A.C. sources by performing Surveillance Requirement 4.8.1.1.1.a on the remaining offsite A.C.

circuit within 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months and at least once per 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months thereafter.

If the diesel generator set became inoperable due to any cause other than preplanned preventive maintenance or testing, demonstrate the OPERABILITY of the remaining diesel generator set by performing Surveillance Requirement 4.8.1.1.2.a.4, on the remaining diesel generator set within 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months , unless the diesel generators are already j

operating.

Restore at least one of the inoperable A.C. sources to l

OPERABLE status within 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months or be in at least HOT STANDBY within the i

next 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months and in COLD SHUTDOWN within the following 30 hours3.472222e-4 days 0.00833 hours 4.960317e-5 weeks 1.1415e-5 months .

Restore the other A.C. source (offsite A.C. circuit or diesel generator l

set) to OPERABLE status in accordance with the provisions of Section 3.8.1.1 Action Statements a or b, as appropriate, with the time requirement of the action statement based on the time of initial loss of the remaining inoperable A.C. source, d.

With both of the offsite A.C. circuits inoperable, demonstrate the OPERABILITY of the remaining A.C. sources by performing Surveillance Requirement 4.8.1.1,2.a.4, on both diesel generator sets within 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months , unless the diesel generators are already operating.

Restore at least one of the inoperable offsite A.C. circuits to OPERABLE status within 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months or be in at least HOT STANDBY within the next 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months . With only one offsite A.C. circuit restored, restore the other offsite A.C.

circuits to OPERABLE status within 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months from time of initial loss or be in at least HOT STANDBY within the next 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months and in COLD SHUTDOWN within the following 30 hours3.472222e-4 days 0.00833 hours 4.960317e-5 weeks 1.1415e-5 months , e.

With both of the diesel generator sets inoperable, demonstrate the OPERABILITY of the remaining A.C. sources by performing Surveillance Requirement 4.8.1.1.1.a on both offsite A.C. circuits within 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months and at least once per 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months thereafter; and by performing Surveillance Requirement 4.8.1.1.2.a.4, on all remaining diesel generators within 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months , unless the diesel generators are already operating.

Restore at least one of the inoperable diesel generator sets to OPERABLE status:

I FARLEY-UNIT 1 3/4 8-2 AMENDMENT N0.

1 ELECTRICAL POWER SYSTEMS l ACTION (Continued) 1.

Within 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months or be in at least HOT STANDBY within the next 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months if (DG 1-2A and DG-2C) or (DG-1B and DG-lC) or (DG-lc and DG-

20) are inoperable; or 2.

Within 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months or be in at least HOT STANDBY within the next 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months if DG l-2A and DG-1B are inoperable; or 3.

Within 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months or be in at least HOT STANDBY within the next 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months if three or more diesel generators are inoperable.

Restore both diesel generator sets to OPERABLE status within 10 days from time of initial loss or be in at least HOT STANDBY within the next 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months and in COLD SHUTDOWN within the following 30 hours3.472222e-4 days 0.00833 hours 4.960317e-5 weeks 1.1415e-5 months .

SURVEILLANCE RE0VIREMENTS 4.8.1.1.1 Each of the above required independent circuits between the offsite transmission network and the onsite Class lE distribution system shall be:

a.

Determined OPERABLE at least once per 7 days by verifying correct breaker alignments, indicated power availability, and b.

Demonstrated OPERABLE at least once per 18 months during shutdown by transferring unit power supply from the normal circuit to the alternate circuit.

4.8.1.1.2 Each diesel generator set shall be demonstrated OPERABLE:

l a.

In accordance with the frequency specified in Table 4.8-1 on a STAGGERED TEST BASIS by:

1.

Verifying the fuel level in the day tank.

2.

Verifying the fuel level in the fuel storage tanks.

3.

Verifying the fuel transfer pump can be started and transfers fuel from the storage system to the day tank.

4.

Verifying -the diesel starts and accelerates to at least 900 rpm for the 2850 kw generator and 514 rpm for the 4075 kw generators in less than or equal to 12 seconds.

The generator voltage and frequency shall be 2 3952 volts and a 57 Hz within 12 seconds after the start signal and operates for 5 minutes.

5.

Verifying-the generator is synchronized, loaded to 2700-2850 kw for-the 2850 kw generator and 3875-4075 kw for the 4075 kw generator and operates for~ greater than or equal to 60 minutes.

l FARLEY-UNIT 1 3/4 8-3 AMENDMENT NO.

TABLE 4.8-1 DIESEL GENERATOR TEST SCHEDULE-NUMBER OF FAILURES IN NUMBER OF FAILURES IN LAST 20'VAllD TESTS *

-LAST 100 VALIO TESTS *

-TEST FREQUENCY sI s4 Once per 31 days 2: 2**

2: 5 Once per 7 days

Criteria for determining number of failures and number of valid tests shall be in accordance with Regulatory Position C.2.e of Regulatory Guide 1.108, but determined on a per diesel generator basis.

For the purpose 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. reliability criterion shall be the successful completion of-14 consecutive tests in a single series.-

These tests shall be-in accordance with the routine Surveillance Requirements 4.8.1.1.2a.4) and 4.8.1.1.2a.5).

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

- The associated test frequency shall be maintained until seven consecutive failure free demands'have been performed and the number of failures in the last 20 valid demands has been reduced to one.-

_]

T

~FARLEY-UNIT 1 3/4 8-6 a AMENDMENT N0.-

i a

[

ELECTRICAL POWER SYSTEMS SHUTDOWN LIMITING CONDITION FOR OPERATION 3.8.1.2 As a minimum, the following A.C. electrical power sources shall be OPERABLE:

a.

One circui+. from the offsite transmission network to the switchyard and from the switchyard to the onsite Class IE distribution system, and b.

Diesel generator 1-2A, 1C or IB each with:

1.

A day tank containing a minimum volume of 900 gallons of fuel for the 4075 kw diesel generator and 700 gallons of fuel for the 2850 kw diesel generator.

2.

A fuel storage tank containing a minimum volume of 25,000 gallons of useable fuel, and l

3.

A fuel transfer pump.

APPLICABILITY: MODES 5 and 6.

ACTION:

With less than the above minimum required A.C. electrical power sources OPERABLE, suspend all operations involving CORE ALTERATIONS or positive reactivity changes until the minimum required A.C. electrical power sources are restored to OPERABLE status.

SURVEILLANCE REQUIREMENTS 4.8.1.2 The above required A.C. electrical power sources shall be demonstrated OPERABLE oy the performance of each of the' Surveillance Requirements =of 4.8.1.1.1 and 4.8.1.1.2 except for requirement 4.8.1.1.2.a.5.

FARLEY-UNIT 1 3/4 8-6 b AMENDMENT NO.

APPLICABillTY BASES 3.0.5 This specification delineates what additional conditions must be satisfied to permit operation to continue, consistent with the ACTION state-ments for power sources, when a normal or emergency power source is not OPERABLE.- It specifically prohibits operation when one division is inoperable because its normal or emergency power source is inoperable and a system, subsystem, train, component or device in another division is inoperable for another reason.

The provisions of this specification permit the ACTION statements associated with individual systems, subsystems, trains, components, or devices to be consistent with the ACTION statements of the associated electrical power

source, it allows operation to be governed by the time limits of the ACTION statement associated with the Limiting Condition for Operation for the normal or emergency power source, not the individual ACTION statements for each system, subsystem, train, component or device that is datermined to be inoperable solely because of the inoperability of its normal or emergency power source.

For example, Specification 3.8.1.1 requires in part that two emergency diesel generators be OPERABLE. The ACTION statement provides for a 10-day l

out-of-service time when one emergency diesel generator is not OPERABLE.

If the definition of OPERABLE were applied without consideration of Specifi-cation 3.0.5, all systems, subsystems, trains, components and devices supplied by the inoperable emergency power source would also be, inoperable.

This would dictate invoking the applicable ACTION statement for each of-the applicable Limiting Conditions for Operation.

However, the provisions of Specifi-cation 3.0.5 permit the time limits for continued operation to be consistent with the ACTION statement for the inoperable emergency diesel generator-instead, provided the other specified conditions are satisfied.

In this case, this would mean that the corresponding normal power source must be OPERABLE, and all redundant systems, subsystems, trains, components, and devices must be OPERABLE, or otherwise satisfy Specification 3.0.5 (i.e., be capable of performing their design function and have at least one normal or one emergency power source OPERABLE).

If they are not satisfied, action is required -in accordance with this specification.

As a further example, Specification 3.8.1.1 requires in.part that two physically independent circuits between the offsite transmission network and-the onsite Class lE distribution system be OPERABLE.

The' ACTION statement provides a 24 hour2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months out-of-service time when both required offsite circuits are not OPERABLE.

If the definition of OPERABLE were applied without consiaeration of Specification 3.0.5, all systems, subsystems, trains, components and devices-supplied by the inoperable normal power sources, both of the offsite circuits, would also be inoperable. This would dictate invoking the applicable ACTION statements for each of the applicable LCOs. However, the provisions of Specifi-cation 3.0.5 permit the time limits for continued operation to be consistent with the ACTION statement for the inoperable normal power sources instead, provided the other specified conditions are satisfied.

In case, this would FARLEY-UNIT 1 B 3/4 0-2 AMENDMENT N0.

1

Unit 2 Annotated Pages

3/4.8 ELECTRICAL POWER SYSTEMS 3/4.8.1 A.C. SOMR0.3 DPERAT.ING LlHITING 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 from the offsite transmission network to the switchyard and two physically independent circuits from the switchyard to the onsite Class 1E distribution system, and b.

Two separate and independent diesel generator sets (Set A: DG l-2A and DG-lC, Set B: DG-2B and DG-20) each with:

1.

Separate day tanks containing a minimum volume of 900 gallons of fuel for the 4075 kw diesel generators and 700 gallons of fuel for the 2850 kw diesel generators.

2.

A separate fuel transfer pump for each diesel.

c.

A fuel storage system consisting of four, independent storage tanks each containing a minimum of 25,000 gallons of useable fuel.*

APPLICABill1Y:

MODES 1, 2, 3 and 4.

80110h1 a.

With only? one an offsite A.Cl circuit 4noperable, demonstrate the OPERABILITY'of the remaining of-fs4te A.C. sources by performing.

Sur.veillance Requirement 4.8.1.1.1.a on'the remaining <offsit6:A.C; circuit within 2.. hours B-hours and at"least"once per 8W hour's1 thereafter;r and by performing Surveillance Requirement-4.8.1.1.2.a".4, 4tems 1, 2, 3, Sr,and-6 on both diesel generator set ~s 4-2A-and-2B within 24 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months unless such surveillance has been performed within the previous 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months 7-days oriths; dlesel Egen~eratorPare~already'foper'atincj.

~

Restore at least two offsite circuits to OPERABLE status'within 72; hours 7-days or be in at least }l0T STANDBY within the next 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months and"In" COLD SilVIDOWN within the following 30 hours3.472222e-4 days 0.00833 hours 4.960317e-5 weeks 1.1415e-5 months . The-provis4 ens-of-Spec 4(4 eat 4an h er4-are-not-app 44eablev b.

With one diesel generator set inoperable, for-eeasons-othee-than-the yearly-scheduled-eafntenanee ** demonstrate the OPERABILITY opecabfMt-y r

of the remaining,A.C. sources by performing Surveillance Requirement 4.8.1.1.1.a on/both?offsite'AlC,1 circuits within 2;hnurs B-hours and at least once p'eF8 7Fhours' thereaft rW. If theidieseli becanisiinoperableidueltofany 'cause3therdthan preplanned?generstor.; set preventive _

maintenance oB testing,t.demonstrateathe OPERABILITYiofjthefremaining dieseltgenerator:setiby performing Survsillance Requirement 4.8.1.1.2%4, Med l, 2, 3, ',-and-6Tdnithe "remairiinWdiessligenorstor.

One operable fuel storage tank must be available for each required diesel generator.

- -4 f-this-scheduled-maintenanc-e-eneeds-10-days 7-the-diesel-generatee-set-must-

-be-declared-4nopeealder FARLEY-UNIT 2 3/4 8-1 AMENDMENT N0.

ELECTRICAL POWER SYSTEMS ACTION (Continued) set *en-twet-44esel-generatoes within 24 la hours, Unisss the" diesel

~

generato'rs 'are already. ' operating.

Restore the inoperable diesel

~

generator set to'0PERABLE status within 10 48 days or be"in at leart HOT STANDBY SWTOOWN within the next 6 hcurs hrd in COLD SHUTDOWN within the r

following 30 hours3.472222e-4 days 0.00833 hours 4.960317e-5 weeks 1.1415e-5 months . The provisions of Specification 3.0.4 :o not applicable if only one of the four individual diesel generate " nits is inoperable, c.

With one offsite A.C.' circuit and one diesel generator set of-tte-above requiecd A.C. clecteleabr9 wee-sources inoperable, fee-eeasons-(thee than-the-yearly-scheduled-ma4ntenance,** demonstrate the OPERA 31LITY of Surveillance the remaining off++te A.C. sources by performing lA.C.lcircuit within 2.

Requirement 4.8.1.1.1.aon:theiremainingfoffsite hours and atLleastT o.ncelper Bihoursjthereafter.;ilf the~ diesel! generator f

set" became inoperable:due-to any'cause other thans preplanned preventive maintenance. or; testing,: demonstrate the 0PERABILITYL of:the' remaining diesel generator, set-by performing Surve'lliance~Re.quifementi 4'.8.1.1.2.a.4, 44cm; 1, 2, 3,1, and-6 on two* theiremaining diesel generators set within 8 M hoursduhlessjth(diesel [generatorsTare already operating.

Restore at least one of the' inoperable A.C. sources to OPERABLE' status within 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months or be in at least HOT STANDBY within the next 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months and in COLD SHUTDOWN within the._following 30 hours3.472222e-4 days 0.00833 hours 4.960317e-5 weeks 1.1415e-5 months .

Restore the other A.C. power source (offsite AiC? circuit or diesel generator set) to OPERABLE status in accordance with the. provisions of Section 3._8.1.1 Action Statements a or.b, as appropriatei WithMtheLtime requirement >of the action statementTbased"onJthe; time of initial loss of the remaining inoperable A.C. source.

d.

With both two of the above required offsite A.C. circuits inoperable, demon' strate the OPERABILITY of the remaining"A.C. sourc'es both diesel generat+r-set + by performing Surveillance' Requirement 4.8.1.1.2.a'.4~,L on both~ diesel geherator; sets within 8 with-2 hours',+ unless the diesel' generatorsarealreidyopsratingf.

Reestore at least one of the

~

inoperable offsite A;CC circuits leurces to OPERABLE status within 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months or be in at least HOT" STANDBY within the next 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months .

With only one offsite A.CM circuit seuree restored, restore both theTother I

offsite A;C. circuitsto OPERABLE status within 72Lh6urs7-days ^from time of initial loss or be in at least HOT STANDBY within the next 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months and in COLD SHUTDOWN within the following 30 hours3.472222e-4 days 0.00833 hours 4.960317e-5 weeks 1.1415e-5 months , e.

With both of the above required diesel generator sets inoperable, demonstrate the OPERABILITY of the remaining l A;C.: sources two offsite A-C-eiceu+ts _by. performing SurveilTance Re_q0iremsnt 4' 8.1.1.1.a oni buth -

offsite' A.Ci circuits within 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months and 'at11eastLonce'perj8Thours thereafter;iand by performing Surveillance;Re_quirement 4.8 l'.1.'2~.ai4,

'lliremaining diesel generators 4n-a

-i t em: 1,'2, 3, ', ind-6 on one a

d4escl_ genc. rater ;ct en-4he-ethc? Unit' within 8 hour9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months sLunlessi theididsel generators are - alreadyfoperat'i_ng'.t Reestore at least one of the

~

inoperable'diese1' generator sets to OPERABLE status:

The two diesel-generatees-chesen to be tested shall verify that at lean-one tra4n-of-LOCWehutdown loads is capable of being powcred -at-each-Urrit-

- +f-th4+-scheduled maintenance-exceed; 10-days, thMieseb9enerator set must be-dee+ared-49epeeabler FARLEY-UNIT 2 3/4 8-2 AMENDMENT N0.

l l

-ELECTRICAL POWER SYSTEMS

-ACTION (Continued) 1.

Within 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months or be in at least HOT STANDBY within the next 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months if (DG l-2A and DG-20) or (DG-2B and OG-lC) or (DG-lC and DG-

20) are inoperable; or 2.

Within 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months or be in at least H0T STANDBY within the next 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months if DG l-2A and DG-28 are inoperable; or 3.

Within 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months or be in at least H0T STANDBY within the next 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months if three or more diesel generators are inoperable.

Restore both diesel generator sets to OPERABLE status within 10 48 days from time of initial loss or be in at least HOT STANDBY within the next 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months and in COLD SHUTDOWN within the following 30 hours3.472222e-4 days 0.00833 hours 4.960317e-5 weeks 1.1415e-5 months .

SURVEILLANCE REQUIREMENTS 4.8.1.1.1 Each of the above required independent circuits between the offsite transmission network and the onsite Class IE distribution system shall be:

a.

Determined OPERABLE at least once per 7 days by verifying correct breaker alignments, indicated power availability, and b.

Demonstrated OPERABLE at least once per 18 months during shutdown by transferring unit power supply from the normal circuit to the alternate circuit.

4.8.1.1.2 Each diesel generator set shall be demonstrated OPERABLE:

a.

In accordance with the frequency specified in Table 4.8-1 on a STAGGERED TEST BASIS by:

1.

Verifying the fuel level in the day tank.

2.

Verifying the fuel level in the fuel storage tanks.

3.

Verifying the fuel transfer pump can be started and transfers fuel from the storage system to the day tank.

4.

Verifying the diesel starts and accelerates to at least 900 rpm for the 2850'kw generator and 514 rpm for the 4075 kw generators in less than or equal to 12 seconds.

The generator voltage and frequency shall be 2 3952 volts and.2 57 Hz within 12 seconds after-the start signal and operates for 5 minutes.

5.

Verifying the generator is synchronized, loaded to 2700-2850 kw for the 2850 kw generator and 3875-4075 kw for the 4075 kw generator and operates for greater than or equal to 60 minutes.

FARLEY-UNIT 2 3/4 8-3 AMENDMENT N0.

TABLE 4.8-1 DIESEL GEN GATOR TEST SCHEDULE (PER O!ESEll NUMBER OF FAILURES IN NUMBER?OF FMLURESFIN LAST 20 MO VALID TESTS

LAST 100: VALID l TESTS

TEST FRE0VENCY s12 s '14 At lec t once per 3.1 M days 2: 2** 3 E5 At-4 east once per 7 days l

l

Criteria for determining number of failures and number of valid tests shall be l

in accordance with Regulatory Position C.2.e of Regulatory Guide 1.108, Revi;ica 1, August 1077, where the ic;t 100 te t: cre but determined on a per diesel generator basis.

Fcr the purpc::: of this test'Tdhedule, only valid ic ts conduet-ed-aftee-the OL issuanee-dat+-shell be included in the c+mput+ Mon ef-the-Mast-100 v cl i d t c:t:. "

l FoFithef pdrpos'eTof TdeteFmin'iiig3ths7FeijkiFiditsst7 frehdeshyMths;pFsVi6usitesf.

l failure countimay7be; reduced to zeroJiffa::: complete Tdieselt:overhaulJtoS1ikeinew condi t ion ti st compl etsd',d provided ithatsthefoverhaul dincl uding l ap:>ropri ate lpist2 l

maintenanceroperation anditesting;?isfspecificallyfapprovedibyftte1 manufacturer l

had if acceptablejreliability has?been1 demonstrated:DThe:reliabilityjcriterion i

shall:belthe?successfdl completionVoffl4*consecutiveitestsfinia? single / series.:f Thesei tests 2shal1J beLin accordance-fwiths the*routineiSurveillancelRequirements' 4;8il.ls2a;4)4andl4.8{l{l;2auS)k !!f;this cniterionii:isinottsatis.fiedLduringithe firstiseries':dofftestskany} alternate count to :zero ;requi res NRCj approval (feri.terio.n to - bejusedj tot, return l th.e

*5Theia s s'aci siedLifs s tif fs46encj 7shallibeTinsi sfiinsd fsnt il ?ssviriM6niscdfi Ve failure free demandsihaves.beenlperformedMad;thelnum@riof:[failuresjin thsRast 20!valididemands:hastbeen[reduceditofonet FARLEY-UNIT 2 3/4 8-7 AMENDMENT NO. 43

ELECTRICAL POWER SYSTEMS EHUTDOWN

' LIMITING CONDITION FOR OPERATION 3.8.1.2 As a minimum, the following A.C. electrical power sources shall be OPERABLE:

a.

One circuit from the offsite transmission network to the switchyard and from the switchyard to the onsite Class lE distribution system, and b.

Diesel generator 1-2A, 10 or 2B each with:

1.

A day tank containing a minimum volume of 900 gallons of fuel for the 4075 kw diesel generator and 700 gallons of fuel for the 2850 kw diesel generator.

2.

A fuel storage tank containing a minimum volume of 25,000 gallons of useable fuel, and 3.

A fuel transfer pump.

APPLICABILITY: MODES 5 and 6.

ACTION:

With less than the above minimum required A.C. electrical power sources OPERABLE, suspend all operations involving CORE ALTERATIONS or positive reactivity changes until the minimum required A.C. electrical power sources are restored to OPERABLE status.

SURVEILLANCE REQUIREMENTS 4.8.1.2 The above required A.C. electrical power sources shall be demonstrated OPERABLE by the performance of each of the Surveillance Requirements of 4.8.1.1.1 and 4.8.1.1.2 except for requirement 4.8.1.1.2.a.5.

FARLEY-UNIT 2 3/4 8-8 AMENDMENT NO.

1 APPLICABILITY BASES 3.0.5 This specification delineates what additional conditions must be satisfied to permit operation to continue, consistent with the ACTION state-ments for power sources, when a normal or emergency power source is not OPERABLE.

It specifically prohibits operation when one division is inoperable because its normal or emergency power source is inoperable and a system, rubsystem, train, component or device in another division is inoperable for another reason.

The provisions of this specification permit the ACTION statements associated with individual systems, subsystems, trains, components, or devices to be consistent with the ACTION statements of the associated electrical power source.

It allows operation to be governed by the time limits of the ACTION statement associated with the Limiting Condition for Operation for the normal or emergency power source, not the individual ACTION statements for each system, subsystem, train, component or device that is determined to be inoperable solely because of the inoperability of its normal or emergency power source.

For example, Specification 3.8.1.1 requires in part that two emergency _ diesel generators be OPERABLE.

The ACTION statement provides for a 72 hour8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months 10? day out-of-service time when one emergency diesel generator is not OPERABLE.

If the definition of OPERABLE were applied without consideration of Specifi-cation 3.0.5, all systems, subsystems, trains, components and devices supplied by the inoperable emergency power source would also be inoperable.

This would dictate invoking the applicable ACTION statement for each of the applicable Limiting Conditions for Operation.

However, the provisions of Specifi-cation 3.0.5 permit the time limits for continued operation to be consistent with the ACTION statement for the inoperable emergency diesel generator instead, provided the other specified conditions are satisfied.

In this case, this would mean that the corresponding normal power source must be OPERABLE, and all redundant systems, subsystems, trains, components, and devices must be OPERABLE, or otherwise satisfy Specification 3.0.5 (i.e., be capable of performing their design function and have at least one-normal or one emergency power source OPERABLE).

If they are not satisfied,' action is required in accordance with this specification.

As a further example, Specification 3.8.1.1 requires in part that two physically independent circuits between the offsite transmission network and the onsite Class 1E distribution system be OPERABLE. The ACTION statement provides a 24 hour2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months out-of-service time when both required offsite circuits are not OPERABLE.

If the definition of OPERABLE were applied without consideration of Specification 3.0.5, all systems, subsystems, trains, components and devices supplied by the inoperable normal power sources, both of the offsite circuits, would also be inoperable. This would dictate invoking the applicable ACTION :

statements for each of the applicable LCOs. However, the provisions of Specifi-cation 3.0.5 permit the. time limits for continued operation to be consistent with the ACTION statement for the inoperable normal power sources instead, provided the other specified conditions are satisfied.

In case. this would FARLEY-UNIT 2 8 3/4 0-2 AMEN 0 MENT NO.

sump u i.

si Unit 2 Typed Pages

________________a

314.8 ELECTRICAL POWER SYSTEM 5i 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 from the offsite transmission network to the switchyard and two physically independent-circuits from the switchyard to the onsite Class 10 distribution system, and b.

Two separate and independent diesel generator sets (Set A: DG l-2A and-DG-lC, Set B: DG-2B and DG-20) each with:

1.

Separate day tanks cont aining a minimum volume of 900 gallons of fuel for the 4075 kw diesel generators and 700 gallons of fuel for the 2850 kw diesel generators.

2.

A separate fuel transfer pump for each diesel.

c.

A fuel storage system consisting of four, independent storage tanks each containing a minimum of 25,000 gallons of useable fuel.*

l APPLICABILITY: MODES 1, 2, 3 and 4.

ACTION:

a.

With only one offsite A.C. circuit operable, demonstrate the OPERABILITY of the remaining A.C. sources by performing Surveillance Requirement 4.8.1.1.1.a on the remaining offsite A.C. circuit within 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months and at least once per 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months thereafter; and by performing Surveillance Requirement 4.8.1.1.2.a.4, on both diesel generator sets within 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months unless such surveillance has been performed within the previous 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months or the diesel generators are already operating.

Restore at least two offsite circuits to OPERABLE status within 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months or be in at least HOT STANDBY within the next 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months and in COLD SHUTDOWN within the following 30 hours3.472222e-4 days 0.00833 hours 4.960317e-5 weeks 1.1415e-5 months , b.

With one diesel generator set inoperable, demonstrate the OPERABILITY of the remaining A.C. sources by performing Surveillance Requirement 4.8.1.1.1.a on both offsite A.C. circeits within 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months and at least once per 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months thereafter.

If the diesel generator set became-inoperable due to any cause other than preplanned preventive maintenance or testing, demonstrate the OPERABILITY of the remaining diesel generator set by performing-Surveillance Requirement 4.8.1.1.2.a.4, on the remaining diesel generator set within 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months , unless the

One operable fuel storage tank must be available for each required diesel generator.

FARLEY-UNIT 2 3/4 8-1 AMENDMENT N0.

ELECTRICAL POWER SYSTEMS ACTION (Continuedl diesel generators are already operating.

Restore the inoperable diesel generator set to OPERABLE status within 10 days or be in + least HOT STANDBY within the next 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months and in COLD SHUTDOWN within the following 30 hours3.472222e-4 days 0.00833 hours 4.960317e-5 weeks 1.1415e-5 months . The provisions of Specification 3.0.4 are not applicable if only one of the four individual diesel generator units is inoperable.

c.

With one offsite A.C. circuit and one diesel generator set inoperable, demonstrate the OPERABILITY of the remaining A.C. sources by performing Surveillance Requirement 4.8.1.1.1.a on the remaining of fsite A.C.

circuit within 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months and at least once per 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months thereafter.

If the diesel generator set became inoperable due to any cause other than preplanned preventive maintenance or testing, demonstrate the OPERABILITY of the remaining diesel generator set by performing Surveillance Requirement 4.8.1.1.2.a.4, on the remaining diesel generator set within 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months , unless the diesel generators are already operating.

Restore at least one of the inoperable A.C. sources to OPERABLE status within 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months or be in at least HOT STANDBY within the next 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months and in COLD SHUTDOWN within the following 30 hours3.472222e-4 days 0.00833 hours 4.960317e-5 weeks 1.1415e-5 months .

Restore the other A.C. source (offsite A.C. circuit or diesel generator set) to OPERABLE status in accordance with the provisions of Section 3.8.1.1 Action Statements a or b, as appropriate, with the time requirement of the action statement based on the time of initial loss of the remaining inoperable A.C. source.

d.

With both of the offsite A.C. circuits inoperable, demonstrate the OPERABILITY of the remaining A.C. sources by performing Surveillance Requirement 4.8.1.1.2.a.4, on both diesel generator sets within 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months , unless the diesel generators are already operating.

Restore at least one of the inoperable offsite A.C. circuits to OPERABLE status within 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months or be in at least HOT STANDBY within the next 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months .

With only one offsite A.C. circuit restored, restore the other offsite A.C.

circuits to OPERABLE status within 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months from time of initial loss or be in at least HOT STANDBY within the next 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months and in COLD SHUTDOWN within the following 30 hours3.472222e-4 days 0.00833 hours 4.960317e-5 weeks 1.1415e-5 months .

e.

With both of the diesel generator sets inoperable, demonstrate the OPERABILITY of the remaining A.C. sources by performing Surveillance Requirement 4.8.1.1.1.a on both offsite A.C. circuits within 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months and' at least once per 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months thereafter; and by performing Surveillance Requirement 4.8.1.1.2.a.4, on all remaining diesel generators within 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months , unless the diesel generators are already operating.

Restore-at least one of the inoperable diesel generator sets to OPERABLE status:

FARLEY-UNIT 2 3/4 8-2 AMENDMENT NO.

ELECTRICAL POWER SYSTD{S ACTION-(Continued) 1.

Within 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months or be in at least HOT STANDBY within the next 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months if (DG l-2A and DG-20) or (DG-2B and DG-lC) or (DG-10 and DG-2C) are inoperable; or 2.

Within 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months or be in at least HOT STANDBY within the next 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months if DG 1-2A and DG-2B are inoperable; or 3.

Within 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months or be in at least HOT STANDBY within the next 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months if three or more diesel generators are inoperable.

Restore both diesel generator sets to OPERABLE' status within 10 days from time of initial loss or be in at least HOT STANDBY within the next 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months and in COLD SHUTDOWN within the following 30 hours3.472222e-4 days 0.00833 hours 4.960317e-5 weeks 1.1415e-5 months .

SURVEILLANCE RE0VIREMENTS 4.8.1.1.1 Each of the above required independent circuits between the offsite transmission network and the onsite Class lE distribution system shall be:

a.

Determined OPERABLE at least onca per 7 days by verifying correct breaker alignments, indicated power availability, and b.

Demonstrated OPERABLE at least once per 18 months during shutdown by transferring unit power supply from the normal circuit to the alternate circuit.

4.8.1.1.2 Each diessl generator set shc11 be demonstrated OPERABLE:

l a.

in accordance with the frequency specified in Table 4.8-1 on a STAGGERED TEST BASIS by:

1.

Verifying the fuel level in the day tank.

2.

Verifying-the fuel level in the fuel storage tanks.

3.

Verifying the fuel transfer pump can be started and transfers fuel from the storage system to the day tank.

4.

Verifying the diesel starts and accelerates to at least 900 rpm-for the 2850 kw generator and 514 rpm for the 4075 kw generators in less than or equal to 12 seconds.

The generator voltage and frequency shall be 2 3952 volts and a 57 Hz within 12 seconds after the start signal arid operates for 5 minutes.

5.

Verifying the generator is synchronized, loaded to 2700-2850 kw for the 2850 kw generator and 3875-4075 kw for the 4075 kw generator and operates for greater than or equal to 60 minutes.

FARLEY-UNIT 2 3/4 8-3 AMENDMENT NO.

TABLE 4.8-1 DIESEL GENERATOR TEST SCHEDULE NUMBER OF FAILURES IN NUMBER OF FAILURES IN LAST 20 VALID TESTS

LAST 100 VALID TESTS

TEST FRE00ENCY sI s4 Once per 31 days a 2**

a5 Once per 7 days

Criteria for determining number of failures and number of valid tests shall be in accordance with Regulatory Position C.2.e of Regulatory Guide. l.108, but determined on a per diesel generator basis.

For the purpose 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 reliability criterion shall be the successful completion of 14 consecutive tests in a single series.

These tests'shall be in accordance with the! routine Surveillance Requirements =

4.8.1.1.2a.4) and.4.8.1.1.2a.5).

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

- The associated;. test frequency shall be maintained until seven consecutive failure free demands have been performed and the number of failures' in the-last-20 vaiid demands:has been reduced to one.

FARLEY-UNIT 2 3/48-7 AMENDMENT'NO.

+

ELECTRICAL POWER SYSTEMS SHUTDOWN LIMITING CONDITION FOR OPERATION

-3.8.1.2 As a minimum, the following A.C. electrical power sources shall be OPERABLE:

a.

One circuit from the offsite transmission network to the switchyard and from the switchyard to the onsite Class lE distribution system, and b.

Diesel generator 1-2A, 1C or 2B each with:

1.

A day tank containing a minimum volume of 900 gallons of fuel for the 4075 kw diesel generator and 700 gallons of fuel for the 2850 kw diesel' generator.

2.

A fuel storage tank containing a minimum volume of 25,000 gallons of useable fuel, and

-l 3.

A fuel transfer pump.

APPLICABILITY: MODES 5 and 6.

ACTION:

With less it.an the above minimum required A.C. electrical power sources OPERABLE, suspend all operations involving CORE ALTERATIONS or positive reactivity changes until the minimum required A.C. electrical power sources are restored to OPERABLE status.

SURVEILLANCE REQUIREMENTS 4.8.1.2 ' The above required A.C. electrical power-sources shall be demonstrated OPERABLE by the performance of each of the-Surveillance-Requirements of 4.8.1.1.1 and 4.8.1.1.2 except for requirement 4.E.1.1.2.a.S.

FARLEY-UNIT 2 3/4 8-8 AMENDMENT NO.

L APPLICABillTY BASES 3.0.5 This specification delineates what additional conditions must be satisfied to permit operation to continue, consistent with the ACTION state-ments for power sources, when a normal or emergency power source is not OPERABLE.

It specifically prohibits operation when one division is inoperable because its normal or emergency power source is inoperable and a system, subsystem, train, component or device in another division is inoperable for another reason.

The provisions of this specification permit the ACTION statements associated with individual systems, subsystems, trains, components, or devices to be consistent with the ACTION statements of the associated electrical power source.

It allows operation to be governed by the time limits of the ACTION statement associated with the Limiting Condition for Operation for the normal or emergency power source, not the individual ACTION statements for each system, subsystem, train, component or device that is determined to be inoperable solely because of the inoperability of its narmal or emergency power source.

For example, Specification 3.8.1.1 requires in part that two emergency diesel generators be OPERABLE.

The ACTION statement provides for a 10-day l

out-of-service time when one emergency diesel generator is not OPERABLE.

If the definition of OPERABLE were applied without consideration of Specifi-cation 3.0.5, all systems, subsystems, trains, components and devices supplied by the inoperable emergency power source would also be inoperable.

This would dictate invoking the applicable ACTION statement for each of the applicable Limiting Conditions for Operation. However, the provisions of Specifi-cation 3.0.5 permit the time limits for continued operation to be consistent with the ACTION statement for the inoperable emergency diesel generator instead, provided the other specified conditions are satisfied.

In this case, this would mean that the corresponding normal power source must be OPERABLE, and all redundant systems, subsystems, trains, components, and devices must be OPERABLE, or otherwise satisfy Specification 3.0.5 (i.e., be capable of performing their design function and have at least one normal or one emergency power source OPERABLE).

If they are not satisfied, action is required in accordance with this specification.

As a further example, Specification 3.8.1.1 requires in part that two physically independent circuits between the offsite transmission network and the onsite Class lE distribution system be OPERABLE. The ACTION statement provides a 24 hour2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months out-of-service time when both required offsite circuits are not OPERABLE.

If the definition of OPERABLE were applied without consideration of Specification 3.0.5, all systems, subsystems, trains, components and devices supplied by the inoperable normal power sources, both of the offsite circuits, would also be inoperable. This would dictate invoking the applicable ACTION statements for each of the applicable LCOs. However, the provisions of Specifi-cation 3.0.5 permit the time limits for continued operation to be consistent with the ACTION statement for the inoperable normal power sources instead, provided the other specified conditions are satisfied.

In case, this would FARLEY-UNIT 2 B 3/4 0-2 AMENDMENT N0.

ATTACHMENT 2 SAFETY ANALYSIS JOSEPH H. FARLEY NUCLEAR PLANT ELECTRICAL POWER SYSTEM TECHNICAL SPECIFICATION CHANGES E80 POSED CHANGES:

The proposed revisions to Technical Specification 3/4.8.1 for both units include:

(i)

Revising Unit 1 Index Page IX to provide the correct page numbers.

(ii)

Revising the diesel fuel oil storage system requirement to reflect that each storage tank must contain a minimum of 25,000 gallons of usable fuel rather than merely specifying 25,000 gallons of fuel.

This change is also applicable to Specification 3/4.8.2.

(iii)

Revising the ACTION associated with an offsite circuit inoperable to reflect new requirements for surveillance activities and offsite circuit restoration. The revision also deletes the exception to Specification 3.0.4.

(iv)

Revising the ACTION associated with one diesel generator set inoperable to reflect now requirements for surveillance l

activities and removing note "**" which states that if the scheduled yearly maintenance of a diesel-generator set exceeds 10 days, the diesel generator set raust La declared inoperable.

The revision also reflects new requirements for diesel generator operability status restoration.

(v)

Revising the ACTION associated with one offsite circuit and one diesel generator set inoperable to reflect new requirements for surveillance activities and removing note "**" which states that if the scheduled yearly maintenance of a diesel generator set exceeds 10 days, the diesel generator set must be declared l

inoperable.

The revision also reflects new requirements for diesel generator operability status restoration and offsite circuit restoration.

(vi)

Revising the ACTION associated with both of the offsite circuits inoperable to reflect new requirements. for surveillance activities on the diesel generator sets.

The re/ision also reflects new requirements for offsite circuit restoration.

(vii)

Revising the ACTION associated with both of the diesel generator sets inoperable to reflect new requirements for surveillance activities on offsite A.C. sources.

The revision also' reflects new requirements for diesel generator operability status restoration.

i

SAFETY ANALYSIS ELECTRICAL TECHNICAL SPECIFICATION CHANGES 1

Page 2 (viii)

Adding a test schedule table for the diesel generators in accordance with Regulatory Position C.2.e of Regulatory Guide 1.108.

(ix)

Revising the Bases for 3.0.5 to correctly state the allowed outage time for one diesel generator.

BACKGROUND:

By letter dated July 30, 1991, the NRC requested a meeting with SNC to discuss the emergency A.C. power systems at FNP.

The meeting was requested l

due to the unique technical specifications and diesel generator i

configuration at FNP.

A meeting was held on October 4, 1991 in which SNC personnel presented an overview of the FNP A.C. electrical system design, method of operation, and basis for Technical Specification-3/4.8.1.

l After evaluating the 'information presented, other documentation available, and operational occurrences at FNP, the NRC issued a ' letter on May 7,1992 i

which requested that the FNP. Technical Specification 3/4.8.1 be examined in l

light of the restrictions contained in the Westinghouse Standard Technical Specification, Revision 4A (STS), Section 3/4.8.1.

The letter also-requested an additional meeting with the NRC Staff to explore where changes could be made to achieve enhanced operating conservatism. The issue was further discussed at a June 15, 1992 meeting in which SNC agreed to the Staff.'s request.

At a subsequent _ meeting held on July 31, 1992,'SNC agreed that clarifications to the FNP Technical Specification 3/4.8.1 should be made to preclude potential misuse of these provisions in the future.and to resolve the NRC Staff's concerns.

SNC further stated that once an indication is-received from the NRC that the approach presented is acceptable, a technical. specifications amendment request would be submitted within-90 days.

By letter dated September 15, 1992, the NRC stated that-the conceptual revisions presented appear to _ result in a significant improvement to FNP Technical Specification 3/4.8.1. However, the NRC stated that SNC must first submit the proposed technical specification amendment before final L

approval could be granted. The letter further requested that the technical specification amendment request be submitted within-90 days of the date of that letter.

SAFETY ANALYSIS ELECTRICAL TECHNICAL SPECIFICATION CHANGES Page 3 DISCUSSION:

The NRC's concerns regarding the present FNP electrical system technical specifications are understood to be as follows:

- Annual diesel generator maintenance could last for up to 10 days without declaring the diesel generator inoperable.

- The present specification allows an 18-day outage for a diesel generator.

- The present specification includes an exception to Technical Specification 3.0.4 for an inoperable diesel generator or offsite circuit.

- The present specification allows a 7-day outage for an offsite circuit.

To-address the NRC's concerns, SNC compared the FNP technical specification to the Standard Technical Specifications Revision 4A.

Regarding the specific issues, SNC proposes that changes be made to the electrical-system technical specifications as follows:

1. The proposed specification clarifies that diesel generators are declared inoperable during scheduled preventive maintenance without allowance of a 10-day grace period for operability; however, no surveillance testing of the other unaffected diesel generators will be requir_ed during that time.

The rationale for performing the additional surveillance testing is to look for a common-mode failure.

If a diesel is intentionally taken out_ of service for scheduled maintenance, there is no need to look for a common-mode failure. This_-

is consistent with the STS.

2. The proposed specification reduces the allowed outage time for an inoperable diesel generator from 18 days to_10 days.

3. The proposed specification removes the exception to Technical Specification 3.0.4 so that a change-of operating modes with an offsite c9cuit inoperable is no longer allowed.

This is_ consistent with the 5.5.

4. The proposed specification reduces the allowed outage time for an offsite circuit to 3 days. This is consistent-with the STS.

5. The proposed specification requires that,_with one offsite circuit inoperable, the remaining offsite circuit be verified-operable within 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months .

I

__.m i

SAFETY ANALYSIS ELECTRICAL 1ECHNICAL SPECIFICATION CHANGES Page 4

6. The proposed specification revises the surveillance test schedule such that the diesel generators are tested every 31 days.

This is consistent with the STS.

7. The proposed specification requires that the diesel generators be tested every 7 days when greater than or equal to 2 failures out of the last 20 tests occurs or when greater than or equal to 5 failures out of the last 100 tests occurs.

This is consistent with the STS.

As mentioned in Item 2 above, the allowed outage time for a diesel is being reduced from 18 days to 10 days, rather than to 3 days as specified in the STS.

In addition, the exception to Technical Specification 3.0.4, which would allow a change in operating mode with one diesel generator lo perable, remains in the technical specification.

These two provisions are justified based upon the high degree of flexibility of the FNP electrical system design.

The STS are based upon a single unit plant which has 2 diesel generators, whereas FNP has 5 diesel generators for 2 units.

For all combinations of a single inoperable diesel generator coincident with a dual unit loss of offstic power and a LOCA on the either unit, at least one safety-related train will be automatically powered at each unit.

In addition, manual transfer can restore loads that may not b9 automatically energized. Although the simultaneous failure of two diesel generators is beyond the design basis, at-FNP with 3 remaining diesel generators at least one train of emergency loads can be powered for _both units with manual control room operator action.- Thus,-loss of a. single diesel generator at FNP is not as critical as at a station with only two diesel generators.

Sufficient time must be allowed to perform required inspection.

maintenance, and testing essential for continual diesel generator reliability.

Since FNP elects to perform diesel generator maintenance during power operation, the 3-day LCO is too short a time to permit proper trouble-shooting, repairs and preoperational testing of the-diesel genarators. The proposed 10-day LC0 will provide adequate time to perform the necessary tasks to ensure continued reliability of the diesel generators at FNP.

For these reasons, the allowance of a 10-day outage of a diesel generator is acceptable.

Since SNC elects to perform diesel maintenance while at power, circumstances could arise which would necessitate an operating mode. change while diesel generator maintenance is being performed.'Considering-the high degree of flexibility of the diesel generator system design as described above, an exception to-Technical Specification 3.0.4 is also-justifiable. This exception will allow a change of operating modes with a single diesel generator inoperable.

)

y

SAFE 1Y ANALYSIS ELECTRICAL TECHNICAL SPECIFICATION CHANGES Page 5 Item 5 above relating to the action statement surveillance time for verifying offsite circuit operability also differs from the STS.

FNP proposes to allow 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months rather than I hour to verify that the remaining offsite. circuit is operable when one of the offsite circuits is inoperable.

Providing an additional hour for this surveillance will allow the operators to focus their attention on plant stabilization following an LOSP.

Operators have sufficient )rocedural guidance to ensure that adequate electrical power is availa)1e following a plant transient without redirecting their attention to performing the surveillance test procedure.

In addition to the changes which are proposed to satisfy the Staff concerns, SNC is proposing to adopt a diesel generator surveillance test schedule in accordance with Regulatory Position C.2.e of Regulatory Guide 1.108.

This surveillance test schedule is consistent with the STS and will reduce the number of routine surveillance starts on the diesel generators which will provide assurance of continued or possibly improved reliability.

Within the pro]osed specification, a clarification to the minimum fuel storage in eac1 storage tank is pro)osed to reflect a minimum of 25,000 gallons of useable fuel in each tant.

The intent of this change is to ensure that at least 25,000 gallons of fuel oil is available to be delivered to the diesel generators. A portion of each diesel fuel oil storage tank is not useable due to that volume being below the transfer pump suction.

Stating that the minimum allowed level is 25,000 gallons of useable fuel oil-ensures that the emergency electrical power system is capable of meeting the' requirements stated in the FSAR of 7 days of operation with an additional 10 percent capacity.

A reference to hnt shutdown in Specification 3.8.1.1 Action b), has been changed to reflect the-correct mode of hot standby.

Hot standby is the plant mode of operation just below critical operation.

This wording is consistent with the STS.

[0NCLUS10N:

The proposed changes to the FNP technical specifications are in accordance:

with the discussions held with the NRC regarding their concerns and are in general agreement with the STS Rev. 4A. Where there are differences between the proposed changes and the STS, a sound technical basis exist based upon. tie high degree of flexibility afforded by the FNP design, s

m w ---,

u e

ATTACHMENT 3 SIGNIFICANT HAZARDS CONSIDERATION EVALVATION PURSUANT 10 10 CFR 50.92 JOSEPH M. FARLEY NUCLEAR PLANT

[LEGJJICAL POWER SYSTEM Ti(HNICAL SPEClflCATION CHANQfS PROPOSED CHANGE 3:

The proposed revisions to Technical Specification 3/4.8.1 for both units include:

(i)

Revising Unit 1 Index Page IX to provide the correct page number.

(ii)

Revising the fuel storage system requirement to reflect that each storage tank must contain a minimum of 25,000 gallons of usable fuel rather than merely specifying 25,000 gallons of fuel.

This revision is also necessary to Technical Specification 3/4.8.2.

(iii)

Revising the ACTION associated with an offsite circuit inoperable to reflect new requirements for surveillance activities and offsite circuit restoration.

The revision also deletes the exception to Specification 3.0.4.

(iv)

Revising the ACTION associated with one diesel generator set inoperable to reflect new requirements for surveillance activities and removing note "**" which stated that if the scheduled yearly maintenance of a diesel generator set exceeded 10 days, the diesel generator set must be declared inoperable.

The revision also reflects new requirements for diesel generator operability status restoration.

(v)

Revising the ACTION associated with one offsite circuit and one diesel generator set inoperable to reflec+. new requirements for surveillance activities and removing note "**" which stated that if the scheduled yearly maintenance of-a diesel generator set exceeded 10 days, the diesel generator ser must be declared inoperable.

The revision also reflects new requirements for diesel generator operability status restorition and offsite circuit restoration.

(vi)

Revising the ACTION associated with both of the offsite circuits inoperable to reflect new requirements for surveillance activities on the diesel generator sets.

The revision also reflects new requirements for offsite circuit restoration.

(vii)

Revising the ACTION associated with both of the diesel generator sets inoperable to reflect new requirements for surveillance activities on offsite A.C. sources. The revision also reflects new requirements for diesel generator operability status restoration.

SIGNIFICANT HAZARDf CONSIDERATION EVALVATION ELECTRICAL TECHNICAL SFFCIFICATION CHANGES Page 2 (viii) Adding a test schedule table for the diesel generators in accordance with Regulatory Position C.2.e of Regulatory Guide 1.108.

(ix)

Revising the Bases for 3.0.5 to correctly state the allowed outage time for one diesel generator.

3ACKGR0MQ:

By letter dated July 30, 1991, the NRC requested a meeting with SNC to discuss toe emergency A.C. power systems at FNP.

The meeting was reauested due to the unique technical specifications and diesel generator..

configuration at FNP.

A meeting was held on October 4, 1991 in which SNC personnel presented an overview of the FNP A.C.- electrical system design, method of operation, and basis for Technical Specification 3/4.8.1.

After evaluating the information presented, other documentation available, and operational occurrences at FNP, the NRC issued a letter on May 7,1992 which requested that the FNP Technical S)ecification 3/4.8.1 be examined in light of the restrictions contained in tie Westinghouse Standard Technical Specification, Revision 4A (STS), Section 3/4.8.1.

The letter also requesteo an additional meeting with the NRC Staff to explore where changes could be made to achieve enhanced operating conservatism. Tid issue was further discussed at a June 15, 1992 meeting in which SNC agreed to the Staff's request.

At a subsequent meeting held on July 31, 1992, SNC agreed that.

clarifications to the FNP Technical Specification 3/4.8.1 should be made to preclude potential misuse of these 3rovisions in the future and to resolve the NRC Staff's concerns. SNC furtier stated that once an indication is received from the NRC that the approach presented is acceptable, a technical specifications amendment request would be submitted within 90 days.

By letter dated September 15, 1992, the NRC stated that the conceptual revisions presented appear to result in a *.ignificant improvement to FNP Technical Specification 3/4.8.1.

However, the NRC stated that SNC must first submit the proposed technical specification amendment before final approval could be granted.

The letter further requested.that the technica) s)ecification amendment request be submitted within 90 days-of the date of t1at letter.

a

. ~. -

SIGNIFICANT HAZARD CONSIDERAT DN EVALUATION l

ELECTRICAL 1ECHNICAL SPECIFICATION CHANGES Page 3 DISCUSSION:

SNC compared the FNP technical specification to the Standard Technical Specifications Rev. 4A, which were prepared by the NRC for use at the Comanche Peak Steam Electric Station.

The changes described above (excluding minor editorial revisions), bring the FNP technical specification into agreement with the STS with two exceptions.

Regarding thase two specific issues, SNC proposes the following changes to the electrical system technical specifications:

As mentioned in item 2 above, the allowed outage time for a diesel is being reduced from 18 days to 10 days, rather than to 3 days as specified in the STS.

In addition, the exception to Technical Specification 3.0.4, which would allow a change in operating mode with one diesel generator.

icoperable, remains in the technical specification.

These two provisions are justified based upon the high degree of flexibility of the FNP electrical system design.

The STS are based upon a single unit plant which has 2 diesel generators, whereas FNP las 5 diesel generators for 2 units.

For all combinations " a single inope rable diesel generator coincident with a dual-unit loss of offsite power and a LOCA on the either unit, at least one safety-related train will be v tomatically powered at each unit.

Thus, loss of a single diesel generator a FNP is not as critical as at a station with only two diesel generators.

Sufficient time must be allowed to perform l'e required inspection, maintenance, and testing essential for co:R1nual diesel generator reliability.

Since FNP performs the diesel generator maintenance during power operation, the 3-day LC0 is too short a time to permit proper trouble-shooting, repairs and preor1 rational testing of-the diesel generators.

The proposed 10-day Lc0 will provide adequate time to perform the necessary tasks to ensure continued reliability of the diesel generators at FNP.

For these reasons,.the allowance of a 10-day outage of a diesel generator is acceptable.

Item 5 above also differs from the STS. As a matter of-practicality, FNP proposes to allow 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months rather than I hour to verify.that the remaining offsite circuit is operable when one of the offs-ite circuits'is-inoperable.

Providing an additional hour for this. surveillance will allow.the operators-to focus their attention on plant stabilization.following.an LOSP.

Operators have sufficient procedural guidance to ensure that adequate electrical power is available following a plant transient without redirecting their attention to performing the surveillance test procedure.

L L

SIGNIFICANT HAZARDS CONSIDERATION EVALVATION ELECTRICAL TECHNICAL SPECIFICATION CHANGES Page 4 in addition, SNC is proposing to adopt a diesel generator surveillance test schedule in accordance with Regulatory Position C.2.e of Regulatory Guide 1.108.

This surveillance test schedule is consistent with the STS and will provide assurance of continued reliability without subjecting the diesel generators to excessive starts.

ANALYSIS:

SNC has reviewed the requirements of 10 CFR 50.92 as they relate to the identified proposed changes to the technical specifications and considers these changes not to involve a significant hazards consideration.

In support of this conclusion, the following analysis is provided:

(1)

The proposed changes to the electrical system technical specifications will not involve a significant increase in the probability or consequences of an accident previously evaluated.

The changes made to the technical specifications will increase the availability of the electrical systero required to mitigate the consequences of an accident by reducing the time allowed for continued operation with an offsite circuit or a diesel generator inoperable. The reduction in the number of diesel generator surveillance starts is expected to improve reliability.

The proposed changes are generally in agreement with the STS which have been previously reviewed and approved by the NRC.

(2)

The proposed changes will not create the possibility of a new or different kind of accident from any accident previously evaluated.

The proposed changes do not involve physical changes to the-facility and-do not result in a change in the manner in which the offsite circuits or the diesel generators provide electrical service to the plant, The assumptions and conclusions of the acc "ent analyses presented in the-FSAR are unaffected by these proposed enanges.

Therefore, a new or different kind of accident will not occur as a result of these changes.

(3)

The proposed changes do not involve a significant reduction in a margin of safety.

The proposed changes do not alter the manner in which safety limits, limiting safety system setpoints, or limiting condittor,s for operation are determined.

By increasing the restrictions upon plant operation with an offsite electrical circuit or a diesel generator out of service, the availability of power to equipment essential for safe operation is enhanced.

In addition, the reduction in the number of diesel generator starts is expected to improve reliability. Therefore, a significant reduction in a margin to safety will not occur due to these proposed technical specification cbnges.

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SIGNIFICANT HAZARDS CONSIDERATION EVALUATION ELECTRICAL TECHNICAL SPECIflCATION CHANGES Page 5

[ DELUSION:

Based upon the analysis provided herein, SNC has determined that the proposed changes to the technical specifications will not significantly increase the probability or consequences of an accident previously evaluated, create the possibility of a new or different kind of accident. from any accident previously evaluated, or involve a significant reduction in a margin of safety.

Therefore, Southern Nuclear Operating Company has determined that the proposed change meets the requirements of 10 CFR 50.92(c) and does not involve a significant hazards consideration.

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ATTACHMENT 4 ENVIRONMENTAL CONSIDERATION JOSEPH H. FARLEY NUCLEAR PLANT

[lECTRICAL POWER SYSTEM TECHNICAL SPECIFICATION CHAREES SNC has determined that the pro)osed change to the Technical Specifications does not involve a significant lazards consideration and does not affect the types or amounts of any radiological or non-radiological effluents that may be released offsite.

The proposed changes do not adversely affect plant safety since the probability of an accident is not affected, nor is there any effect on the consequences of any accident. No changes are being made in the types or amounts of any radiological or nonradiological effluents that may be released offsite.

The proposed changes do not involve any other environmental impacts.

No increase in individual or cumulative occupational radiation exposure will result from this change.

Additionally, these changes do not involve the use of any resources not previously considered in the Final Environmental Statement related to the operation of farley Nuclear Plant.

Therefore, the proposed changes to the technical specifications will not significantly affect the quality of the environment.

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ML20126A391

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