Text

Proposed Tech Spec 3/4.8.1, AC Sources & Associated Bases
	ML18011A586
Person / Time
Site:	Harris
Issue date:	09/12/1994
From:	; CAROLINA POWER & LIGHT CO.
To:	;
Shared Package
ML18011A585	List: ML18011A584; ML18011A586;
References
	NUDOCS 9409190035
	Download: ML18011A586 (28)
	v • d • e

ENCLOSURE 3 TO SERIAL: HNP-94-040 Page 1 of 1 SHEARON HARRIS NUCLEAR POWER PLANT NRC DOCKET NO. 50-400/LICENSE NO. NPF-63 REQUEST FOR LICENSE AMENDMENT AC SOURCES - OPERATING SUPPLEMENTAL INFORMATION TECHNICAL SPECIFICATION PAGES qq0gieooS5 9'40~>2 PDR ADOCK 05000400

LIMITINC COHDITIONS FOR OPERATION AHD SURVEILLANCE RE UIREMEliTS SECTION PACE 3/4 ~ 7 ~ 2 STEAM CENERATOR PRESSURE/TEMPERATURE LIMITATIOH.~ ~... ~ ~ . ~ 3/4 7-10 3/4 ' ' COMPONENT COOLINC MATER SYSTEMe ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ 3/4 7-11 3/4.7.4 EMERGENCY SERVICE WATER SYSTEMe ~... ~ . ~ ~ .. ~... ~........... 3/4 7"12 3/4 e 7 e 5 ULTIMATE HEAT SINK.... ~ ~ .. ~ ~ ~ ~ . ~ ~ e .~. ~ ~ ~ ~ . ~ ~ ~ . ~ ~ ~ ~....... 3/4 7-'L3 3/4.7.S CONTROL ROOM EMERGENCY FILTRATION SYSTEM ~ ~ ~ ~ ~ ~ ~ ~ ~ ....... 3/4 7-14 3/4o7 ~ 7 REACTOR AUXILIARYBUILDINC (RAB) EMERGENCY EXHAUST SYSTEMe ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ e"

~ ~ ~ ~ ~ ~ ~ ~ ~ ~ 3/4 7-17 3/ae7 ~ 8 SHUBBERS ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ 3/a 7-19 FICURE 4e7 1 (DELETED) ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ 3/4 7-24 3/4e7e9 SEALED. SOURCE COHTAMIHATIONo~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~~ ~ ~ ~~ ~ ~ ~ ~ ~~ ~ ~ ~ ~ ~ ~ 3/4 7-25 3/4 ' '0 (DELETED) ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ e ~ ~ ~ ~ ~ ~ ~ e~~~~~~~~~~~~ ~ ~ ~ ~ ~ ~ 3/4 7 27 TABLE 3 '-3 (DELETED) ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~~ ~ ~~ ~~ ~~ ~ ~~~~ ~ ~ ~ ~ ~ ~ 3/4 7-27 TABLE 3 ' 4 (DELETED) ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ e ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ 3/4 7-27 TABLE 3 '-5 (DEUeeED) ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ e ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ 3/4 7-27 3/4 ~ 7 ~ 11 (DEUeeED) ~ ~ ~ . ~ ~ ~ ~ ,~~~~~~~~~~~~~~~~~~~~~~~~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ 3/4 7-27 3/ae7e12 AREA TEMPERATURE MOHITORIHCe ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ 3/4 7-28 TABLE 3 '-6 AREA TEMPERATURE MOHITORIHCe ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ 3/a 7-29 3/4.7.13 ESSENTIAL SERVICES CHILLED MATER SYSTEM ~ ~ ~ ~ ~ ~ ~ ~ ~ .... ... ~ 3/4 7-30 3/4o8 ELECTRICAL POWER SYSTEMS 3/4.8.1 A.C. SOURCES Ope'Nt1nge ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ 3/4 8-1 TABLE 4 ~ 8-1 3/4 8-10 ShUtdolle ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ 3/4 8-11 3/4 8 2 DeCe SOURCES Ope tetange ~ ~ .~~~~~~~~~~~~~~~~~~~~~~~~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ . 3/4 8-12 TABLE 4e8 2 BATTERY SURVEILLANCE RE PIREMEHTS ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ 3/a 8-14 ShutdOCe ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ 3/4 8-15 3/4.8 ~ 3 OHSITE POWER DISTRIBUTION OpetetNgo ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ 3/a 8-16 ShlltdOllle ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ 3/4 8 18 SHEAROH HARRIS - UNIT 1 haeadaenc No.

T SYS FEEDWAT SYST L TI G COND ON FOR OPERATION 3.7.1.2 At least three independent steam generator auxiliary feedwater pumps and associated flow paths shall be OPERABLE with:

a. Two motor-driven auxiliary feedwater pumps, each capable of being powered from separate emergency buses, and

b. One steam turbine-driven auxiliary feedwater pump capable of being powered from an OPERABLE steam supply system.

~OT ON:

a. With one auxiliary feedwater pump .inoperable, restore the required "

auxiliary feedwater pumps 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 HOT SHUTDOWN within the following 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months .

1

b. With two auxiliary feedwater pumps inoperable, be in at least HOT STANDBY within 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months and in HOT SHUTDOWN within the following 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months .

c. With three auxiliary feedwater pumps inoperable, immediately initiate corrective action to restore at least one auxilia feedwater pump to OPERABLE status as soon as possible.

+/SERT 4.7.1.2.1 Each auxiliary feedwater pump shall be demonstrated OPERABLE:

a. At least once per 31 days on a STAGGERED TEST BASIS by:

1. Demonstrating that'each motor-driven pump satisfies performance requirements by either:

a) Verifying each pump develops a differential pressure that (when temperature - compensated to 70'F) is greater than or equal to 1514 psid at a recirculation flow of greater than or equal to 50 gpm (25 KPPH), or b) Verifying each pump develops a differential pressure that (when temperature - compensated to 70 F) is greater than or equal to 1259 psid at a flow rate of greater than or equal to 430 gpm (215 KPPH).

SHEARON HARRIS - UNIT 1 3/4 7-4 Amendment No.

INSERT I to Page 3/4 7-4:

(NOTE: LCO 3.0.3 and all other LCO Required Actions requiring NODE changes are suspended until one AFW train is restored to OPERABLE status. Following restoration of one AFW train, all applicable LCOs apply based on the time the LCOs initially occurred.)

/4.8 Es ECTRICAL POWER SYSTEHS 3/4.8. 1 A.C. SOURCES OP ERAT INC l IHITINC CONDITION fOR OPERATION 3.8.1.1 As a minimum. the EoiloMing A.C. eiectricai poMer sources shall be OPERABLE:

a. TMo physicaLly independent circuits betveen the of fsite transmission network.and the onsice Class 1E distribucion system, and

b. TMo separate and indeyendenc diesel. generators, each Mich:

1~ A separate day tank containing a minimum of )457 gallons ot EueL, Mhich is equivalent to a minimum indicaced level. of 40/~

2. A separate maia Euai oil scorage cank containing a minimum of 100,000 gaLLons of fuel, and

3. A separace Euei oil transfer pump.

g hgsornawg Load APPLICABILITY: MODES 1~ 2, 3 and 4e Qtqgel ccrs Qr y~,'r, A anJ Tin(n S.

OHt offsets cxrcuac ao VLt 0

ne ILITY of the r 'ning

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~ an era e, emonscrace c e as by performing Surve'ac ZasER< Requirement 4.8 1 ~ a vithia 1 ur and at least once p 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months 2 thereafter If cher emerg diesel generator (E s noc 'be successfully sated Michin e 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months preceding try inco chis ACTZOH, d astraea it ERABILITY by perfo Survei'LLance Requir eac 4.8 1.1 .a.4 aad a.6 seyarac for each such EDC ui a 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months . escore the offsice rcuit, to OPERABLE st, us thin 72 ho s or be in ac least T STAHDBY vithin che c 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months an LD SHllTDOMH uichi he Eoilouiag 30 hours Mi one diesel gene or oE 3.8 '.l.b inoyera e, demonstrate ch ERABZLZTY of c A C offsite sources by rforming SurveiLL ce Requirement 1 1 ~ i.a within 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months ac isaac once per hours thereafc aad if the EDC became i erable due to any nce or testiag, d se ocher scrace che than epLanaed preventive main ZLITY oE the rcmaiaia ERABLE EDC performin Sucveillance Requirement 4.8 1 1 2.a, aad a.6 Mithin 24 hour2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months 'tl restore che

~as test, is require to. e comp ece r ar ess o eat ceno ra e is restored OPERABILITY.

tActiv les thac normaLLy sup t testing yursuant. co 4 .1.1.2.a 4 and a.6, MouLd render che di 1 inoperable (e.g., air oLL), shaLL not, be pea armed Eor testing re red by chis ACTZOH stac nt.

~inimum indicaced level Mich s fuel oil specific gravicy oE 0.83 and the leveL instrumentation caLibrated co a reference specific gravicy oE 0 ~ 876 ~

SHEAROH HARRIS - UNIT 1 3/4 8-1 Amendmenc No. p

INSERT 2 to Page 3/4 8-1:

With one offsite circuit of 3.8. I.l.a inoperable:

Perform Surveillance Requirement 4.8. 1. 1. I.a within 1 hour and once per 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months thereafter; and

2. Restore the offsite circuit 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 hour s; and

3. Verify required feature(s) powered from the OPERABLE offsite A.C.

source are OPERABLE. If required feature(s) powered from the OPERABLE offsite circuit are discovered to be inoperable at any time while in this condition, restore the required feature(s) to OPERABLE status within 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months from discovery of inoperable required feature(s) or declare the redundant required feature(s) powered from the inoperable A.C. source as inoperable and 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 or within the ACTION time of applicable ACTION statement(s) for the inoperable required feature(s), whichever is more limiting.

INSERT 3 to Page 3/4 8-1:

b. With one diesel generator of 3.8. l. I.b inoperable:

Perform Surveillance Requirement 4.8. 1. 1. l.a within 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months and once per 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months thereafter; and

2 Within 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months , determine the OPERABLE diesel generator is not inoperable due to a common cause failure or perform Surveillance Requirement 4.8. 1. 1.2.a.48; and

3. Restore the diesel generator 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 ; and Verify required feature(s) powered from the OPERABLE diesel generator are OPERABLE. If required feature(s) powered from the OPERABLE diesel generator are discovered to be inoperable at any time while in this condition, restore the required feature(s) to OPERABLE status within 4 hours4.62963e-5 days 0.00111 hours 6.613757e-6 weeks 1.522e-6 months from discovery of inoperable required feature(s) or declare the redundant required feature(s) powered from the inoperable A.C. source as inoperable and 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 or within the ACTION time of applicable ACTION statement(s) for the inoperable required feature(s), whichever is more limiting.

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INSERT 4 to Page 3/4 8-2:

With one offsite circuit and one diesel generator of 3.8. 1. 1 inoperable:

NOTE: Enter applicable Condition(s) and Required Action(s) of LCO 3/4.8.3, ONSITE POWER DISTRIBUTION - OPERATING, when this condition is entered with no A.C. power to one train.

Restore one of the inoperable A.C. sources to OPERABLE status within 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-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 .

2. Following restoration of one A.C. source (offsite circuit or diesel generator), restore the remaining inoperable A.C. source to OPERABLE status pursuant to requirements of either ACTION a or b, based on the time of initial loss of the remaining A.C. source.

INSERT 5 to Page 3/4 8-2:

With two of the required offsite A.C. sources inoperable:

Restore one offsite circuit 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 ; and

2. Verify required feature(s) are OPERABLE. If required feature(s) are discovered to be inoperable at any time while in this condition, restore the required feature(s) to OPERABLE status within 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months from discovery of inoperable required feature(s) or declare the redundant required feature(s) inoperable and 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 COLD SHUTDOWN within the following 30 hours3.472222e-4 days 0.00833 hours 4.960317e-5 weeks 1.1415e-5 months or within the ACTION time of applicable ACTION statement(s) for the inoperable required feature(s), whichever is more limiting.

3. Following restoration of one offsite A.C. source, restore the remaining offsite A.C. source in accordance with the provisions of ACTION a with the time requirement of that ACTION based on the time of initial loss of the remaining inoperable A.C. source.

ELEC i RICAL POWER SYSTBIS A.C. SOURCES OPERATING LIMITING CONOITION FOR OPERATION ACTION Continued :

e. With two of'he req offsfte A. circuits inoperable, nstrat the OPERABILITY o two diesel gen ators by sequentiall erforming Surveillance R cerement 4.8.1 2.a.4 and a.6 on bo diesels within 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months ', u ess the diesel nerators are alrea perating; resto one of inoperable off te sources to OPERAS status within hours . be $ n at. leas T STANOBY within next 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months llgw-ing storation of o offsite source, fo ow ACTION a. wi the time r uirement of th ACTION based on th ime of initial 1 s of the remaining inope le offsite A.C. ci it. A successf test(s) of diesel OP ITY per Surveillan Requirement 4.8 1.2.a.4 and a.6 perfo under this ACTIO for the OPERABLE esels satisfies e tof ON a.

With two of the above quired diesel gen ators inoperable, on-strata the OPERABI of two offsite . . circuits by pe rming Surveillance Req rement 4.8.1.1.1. 'thin 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months and a least once per 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months after; restore o of the inoperable esel gener ators to OP BLE status withi hours or be in at east HOT STANDBY within next 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months and COLO SHUTDOWN wi n the following 30 ho . Following res ation of one diesel enerator unit, follow A N b. with the ti quirement of that ON based on the ti uc-initial loss of remaining inoper diesel generator.

cessful test ot d el OPERABILITY per urveillance Requireae 4.8.X.L,2. a.4 a. 6 performed und this ACTION for a res red-

~ggggP OPERABLE esel satisfies the G test irement of ON b.

8,9 SURVEILLANCE REOUIREHENTS 4.8.1.1.1 Each of the above required physically independent circuits between the offsite transmission network and the onsite Class IE distribution system shall be:

a Oetarmined OPERABLE at least once per 7 days by verifying correct breaker alignment and power availa&lity; and

b. Oemonstrated OPERABLE at least once per IS months by manually trans-ferring the onsite Class 1E power supply from the unit auxiliary transformer to the startup auxiliary transformer.

kActivities that normally support testing pursuant to 4.8. 1.1.2. a. 4~

which would render 'the diesel inoperable (e.g., air roll), shall not be performed for testing required by this ACTION statement.

SHEARON HARRIS - UNIT 1 3/4 8-3

INSERT 6 to Page 3/4 8-3:

e. With two of the required diesel generators inoperable:

Perform Surveillance Requirement 4.8. 1. 1. l.a within 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months and once per 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months thereafter; and

42. Restore one of the diesel generators to OPERABLE status 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 and in COLD SHUTDOWN within the following 30 hours3.472222e-4 days 0.00833 hours 4.960317e-5 weeks 1.1415e-5 months .

3. Following restoration of one diesel generator, restore the remaining diesel generator in accordance with the provisions of ACTION b with the time requirement of that ACTION based on the time of initial loss of the remaining inoperable diesel generator.

, INSERT 7 to Page 3/4 8-3:

With three or more of the required A.C. sources inoperable:

Immediately enter Technical Specification 3.0.3.

2. Following restoration of one or more A.C. sources, restore the remaining inoperable A.C. sources in accordance with the provisions of ACTION a,b,c,d and/or e as applicable with the time requirement of that ACTION based on the time of loss of the remaining inoperable A.C. sources.

INSERT 8 to Page 3/4 8-3:

g, With contiguous events of either an offsite or onsite A.C. source becoming inoperable and resulting in failure to meet the LCO:

1. Within 6 days, restore all A.C. sources required by 3.8. 1. 1 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 .

INSERT 9 to Page 3/4 8-3:

h. With one automatic load sequencer inoperable:

1. Restore the automatic load sequencer 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 COLD SHUTDOWN within the following 30 hours3.472222e-4 days 0.00833 hours 4.960317e-5 weeks 1.1415e-5 months .

ELECTRICAL NEER SYSTEMS A.C. SDURCES OPERATING SURVEILLANCE REQUIREHEHTS Continued) 4.8.1.1.2 E tor all ba damonstratad OPERABLE:

ae A+ lf.ms+ dnf AGG ance e, p~f'i d~ s e

BASIS by:

re 'ecf n ab . alona

1. Verifying the fuel level In the day tank,

2. Verifying the fuel level in the main fuel oil storage tank, 3.',

Verffyfng the fuel oil transfer pump pan be started and transfers fuel from the storage system to the day tank, Verifyfng the dfesel generator can start and accalerat to synchronous speed (450 rpm) with generator voltage and frequen 6900 a 690 volts and 60 i 1.2 Hz ac perifying the generator is synchronizad, gradually loaded"" to

. u cue Q5, an indicated 6200-6400 kM""" and operates for at least 60 Qf nutes dlgMI Verifying the pressure in at least one air start receiver to be greater than or equal to 190 psfg, and Verffyfng the dfesel generator fs alfgned to provide standby power to the associated emergency buses.

b. Check for and reaove accumulated water:

1. Froiw the day tank, at least once per 31 days and aftar each operatfon of the diesel where the period of operatfon was greater than 1 'hour, and

2. Froa the mafn fuel oil storage tank, at least once per 31 days.

c. By sampling nor fuel oil in accordance with AS'-04057-81 prior to addftfon to storage tanks and:

I. '8l By verffyfng, in accordance with the tests speciffed in AS'-0975-prior to addftfon to the storage tanks, that, the sample has:

k This test shall be conducted in accordance with the manufacturer's recommen-datfuns regardfng engfne preluae and warmup prucsdures, and as applfcaulg> I regardf ng 1 oadf ng recoiaaendatf ons.

~fs band is meant, as guidance to avoid routfne overloadfng of the engine..

Loads in excess of this band for special testfng or momentary variations due to changfng bus loads shall not invalfdate the test.

SHEARQN HARR UNIT 1 3/4

. ¹¹ The voltage and frequency conditions shall be met within 10 seconds or gradual acceleration to no-load conditions per vendor recommendations will be an acceptable alternative.

TABLE 4. -1 IESEL QEHERAT TEST SCHEOULE ABER OF FAILUR NUNB OF FAILURES N N LAST I00 VA 0 LA 20 VALIO TE S" TESTS" TE FRE UENCY

<4 y'ce per. 31 ays Once per days pa Has~ rae<e'~

"Criteria for etermining n er of failures and number of alid tests shall be in acco nce with Re atory Position .Z.e of Regul ry Guide 1.108 but date ned on a per ese1 generator asis.

For the urposes of reining the uired test f uency, the prev us test ilure count be reduced to zero lik new condition is completed, if a ete diesel ove ul to vided that e overhaul inclu ng appro-pr'e post-main nance.operatio and testing, specifically roved by e Nanufacture liability and if accep e reliability as been demons ated. The-te~on shall b the.successfu coapletion of consecutive .

tests in a s gle series. T n of these te shall be in a ordance with Surveillan Requirement 4 .X.1.2. a.4; f r tests, in ac rdance with Surveilla e Requirement .8.1.1.2.e. this criterion s not satisfied during e first series of tests, any ternate criter' to be used to transv ue the failu count to zero uires 'NRC ap val.

"The sociated test requency shal be maintained ti1 seven consecutive fa ure free dema s have been p ormed and the umber of failures in the t N valid. d ds has been uced to one.

SHEARQN HARRIS - UNIT 1 3/4 8-10

~ 3'/4. 8 ELECTRICAL POWER SY~c. S BASES 3/4.8. 1. 3/4.8.2 ANO 3/4.8.3 A.C. SOURCES O.C. SOURCES ANO ONSZTE POWER OISTRIBUTION The OPERABILITY of the A.C. and O.C power sources and assocfated distrfbutfan systems during operation ensures that sufficient power will be available ta supply the safety-related equipment required for: (1) the safe shut"awn of the facility, and (2) the mitigation and control of accident canditions within the facility. The minimum specified independent and redundant A.C. and O.C. power sources and distribution systems satis y the requirements of General Oesign Criterion 17 of Appendix A ta 10 CFR Part 50.

SeVer The swftchyard fs esigned using a breaker and-a-half scheme. The switchyard currently has connec".ions with the CP8L transmission network; each of these transmission lines is physically independent. The switchyard has one connection wit'i each of the two Startup Auxiliary Transformers and each SAT can be fed directly fram an associated offsite transmission Ifne. The Startup Auxiliary Transformers are the preferred po~er source for the Class 1E ESP buses. The minimum alignment of offsite po~er sources will be maintained such that at least two physically independent affsite circuits 'are available. The two physi-cally independent circuits may consist of any two of the incoming transmission lines to the SATs (either thraugh the switchyard or directly) and into the Class 1E system. As long as there are at least two transmission lines in ser vice and two circuits through the SATs ta the Class 1E buses, the LCO fs met.

Ouring HOOES 5 and 6, the Class 1E buses can be energized from the offsite transmission net. work via a combination of the main transformers, and unit auxiliary transformers. This arrangement may be used ta satisfy the require-ment of one physically independent circuit.

The .ACTION requirements specified for the levels of degradatfon of the power sources provide restriction upon cantfnued facility operation commensurate with the level of degradation. The OPERABI~i of the power sources are consistent with the initial condition assumptions of the safety analyses and are based upon maintaining at least one redundant set of cnsite R.C. and O.C. power sources and associated distribution systems OPERABLE during accident conditions cain-cident wfth an assumed loss-of-affsite power and single failure of the other onsite A.C. source. The A.C. and O.C. source allowable out-of-service times are based on Regulatory Guide 1.93,."Availability of Electrical Power Sources,"

Oe 7 en one iese enera r is inope ACTION requi t ta verify at all required sys , subsystems, trains, components nd devices, th depend on the remafnin OPERABLE dfesel genera

'j~p as a source or enerdency oner, are a1so OPfRASLE Th1s renu1renent 1s $ n nded to pomade assurance t t a loss-of-offsite paw event will not result a camp'lete loss of sa y function of critical stems during the periad ne of e diesel genera rs is fnoperable. The rm, verify, as used in s context means to admini ratfvely check by exami ng logs or other informat on to deter-mine if ce n campanents are out-of- rvice far maintenance or ther reasons.

It does n mean to perform the Surv llance Requirements need to demonstrate the OP ILITY of the component.

SHEARON HARRIS - UNIT 1 B 3/4 8 1 gn~cn J~cnu do.

INSERT 12 to Page B 3/4 8-1:

There are additional ACTION requirements to verify that all required feature(s) that depend on the remaining OPERABLE A.C. sources as a source of emergency power, are also OPERABLE. These requirements allow a period of time to restore any required feature discovered to be inoperable, e.g. out-of-service for maintenance, to an OPERABLE status. If the required feature(s) cannot be restored to an OPERABLE status, the ACTION statement requires the redundant required feature, i.e. feature receiving power from an inoperable A.C. source, to be declared inoperable and a controlled plant shutdown performed. The allowed operating times to restore an inoperable required feature to an OPERABLE status is based on the requirements in NUREG 1431. The term "verify", as used in these ACTION statements means to administratively check by examining logs or other information to determine the OPERABILITY of required feature(s). It does not mean to perform the Surveillance Requirement needed to demonstrate the OPERABILITY of the required feature(s).

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I

) INDEX

'LIMITING CONDITIONS FOR OPERATION AND SURVEILLANCE REQUIREMENTS SECTION PAGE 3/4.7.2 STEAN GENERATOR PRESSURE/TEMPERATURE LIMITATION......... 3/4 7-10 3/4.7.3 COMPONENT COOLING WATER SYSTEM.......................... 3/4 7-11 3/4.7.4 EMERGENCY SERVICE WATER SYSTEM.......................... 3/4 7-12 3/4.7.5 ULTIMATE HEAT SINK............... 3/4 7-13 3/4.7.6 CONTROL ROOM EMERGENCY FILTRATION SYSTEM. 3/4 7-14 3/4.7.7 REACTOR AUXILIARY BUILDING (RAB) EMERGENCY EXHAUST S YSTEM. ~ ~ ~ t~~~~~~~~~~~~~~~~~\~~ ~ ~ 3/4 7-17 3 /4.7.8 SNUBBERS ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ 3/4 7-19 FIGURE 4.7-1 (DELETED)........................ ~ .............. 3/4 7-24 3/4.7.9 SEALED SOURCE CONTAMINATION............................. 3/4 7-25 3/4.7.10 (DELETED).................... .....- ~ ~ ~ ~ ~ ~ 3/4 7-27 TABLE 3.7-3 (DELETED)............ 3/4 7-27 TABLE 3.7-4 (DELETED). 3/4 7-27 TABLE 3.7-5 (DELETED)................... .. . ~ ~ ~ ~ ~ ~ ~ ~ 3/4 7-27 3/4e7oll (DELETED)o ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ t ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ 3/4 7-27 3/4.7.12 AREA TEMPERATURE MONITORING................ 3/4 7-28 TABLE 3.7-6 AREA TEMPERATURE HONITORING.................-........ 3/4 7-29 3/4.7.13 ESSENTIAL SERVICES CHILLED WATER SYSTEM................. 3/4 7-30 3 4.8 ELECTRICAL POWER SYSTEMS 3/4.8. 1 A.C. SOURCES 0 pel at lng o ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ o ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ o ~ ~ ~ ~ ~ ~ 3/4 8-1 TABLE 4.8-1 (DELETED).................'. . .- . .. ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ 3/4 8-10 I S hutdown................................................ 3/4 8-11 3/4.8.2 D.C. SOURCES Operating.... 3/4 8-12 TABLE 4.8-2 BATTERY SURVEILLANCE REQUIREMENTS.................... 3/4 8-14 S hutdown.... ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ 3/4 8-15 .

3/4.8.3 ONSITE POWER DISTRIBUTION 0 perat>ng...........................

I!

3/4 8-16 S hutdown............................ 3/4 8-18 SHEARON HARRIS - UNIT 1 Amendment No.

PLANT, SYSTEMS AUXILIARY FEEDWATER SYSTEM LIMITING CONDITION FOR OPERATION 3.7.1.2 At least three independent steam generator auxiliary feedwater pumps and associated flow paths shall be OPERABLE with:

a. Two motor-driven auxiliary feedwater pumps, each capable of being powered from separate emergency buses, and

b. One steam turbine-driven auxiliary feedwater pump capable of being powered from an OPERABLE steam supply system.

APPLICABILITY: MODES 1, 2, and 3.

ACTION:

a 0 With one auxiliary feedwater pump inoperable, restore the required auxiliary feedwater pumps 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 HOT SHUTDOWN within the following 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months .

b. With two auxiliary feedwater pumps inoperable, be in at least HOT STANDBY within 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months and in HOT SHUTDOWN within the following 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months .

With three auxiliary feedwater pumps inoperable, immediately initiate corrective action to restore at least one auxiliary feedwater pump to OPERABLE status as soon as possible. (NOTE:

LCO 3.0.3 and all other LCO Required Actions requiring MODE changes are suspended until one AFW train is restored to OPERABLE status. Following restoration of one AFW train, all applicable LCOs apply based on the time the LCOs initially occurred.)

SURVEILLANCE RE(UIREMENTS 4.7.1.2. I Each auxiliary feedwater pump shall be demonstrated OPERABLE:

a 0 At least once per 31 days on a STAGGERED TEST BASIS by:

Demonstrating that each motor-driven pump satisfies performance requirements by either:

a) Verifying each pump develops a differential pressure that (when temperature - compensated to 70'F) is greater than or equal to 1514 psid at a recirculation flow of greater than or equal to 50 gpm (25 KPPH), or b) Verifying each pump develops a differential pressure that (when temperature - compensated to 70'F) is greater than or equal to 1259 psid at a flow rate of greater than or equal to 430 gpm (215 KPPH).

SHEARON HARRIS - UNIT ) 3/4 7-4 Amendment No.

3 4.8 ELECTRICAL P SYSTEMS 3 4.8.1 A.C. SOURCES OPERATING LIMITING CONDITION FOR OPERATION 3.8. 1. 1 As a minimum, the following A.C. electrical power sources shall be OPERABLE:

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

b. Two separate and independent diesel generators, each with:

l. A separate day tank containing a minimum of 1457 gallons of fuel, which is equivalent to a minimum indicated level of 40%%*

2. A separate main fuel oil storage tank containing a minimum of 100,000 gallons of fuel, and

3. A separate fuel oil transfer pump.

c. Automatic Load Sequencers for Train A and Train B.

APPLICABILITY: NODES 1, 2, 3 and 4.

ACTION:

a. With one offsite circuit of 3.8. l.l.a inoperable:

Perform Surveillance Requirement 4.8. 1. 1. l.a within 1 hour and once per 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months thereafter; and

2. Restore the offsite circuit 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 ; and

3. Verify required feature(s) powered from the OPERABLE offsite A.C.

source are OPERABLE. If required feature(s) powered from the OPERABLE offsite circuit are discovered to be inoperable at any time while in this condition, restore the required',feature(s) to OPERABLE status within 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months from discovery of inoperable required feature(s) or declare the redundant required feature(s) powered from the inoperable'.C. source as inoperable and 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 or within the ACTION time of appl,icable ACTION statement(s) for the inoperable required feature(s), whichever is more limiting.

- Minimum indicated level with a fuel oil specific gravity of 0.83 and the level instrumentation calibrated to a reference specific gravity of 0.876.

SHEARON HARRIS - UNIT 1 3/4 8-1 Amendment No.

ELECTRICAL POWER SY S

'A.C. SOURCES OPERATING LIMITING CONDITION FOR OPERATION

~Ni b.

d With one diesel generator of 3.8. l.l.b inoperable:

1. Perform Surveillance Requirement 4.8.1.1. l.a within 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months and once per 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months thereafter; and

2. Within 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months , determine the OPERABLE diesel generator is not inoperable due to a common cause failure or perform Surveillance Requirement 4.8.1.1.2.a.48; and

3. Restore the diesel generator 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 ; and 4, Verify required feature(s) powered from the OPERABLE diesel generator are OPERABLE. If required feature(s) powered from the OPERABLE diesel generator are discovered to be inoperable at any time while in this condition, restore the required feature(s) to OPERABLE status within 4 hours4.62963e-5 days 0.00111 hours 6.613757e-6 weeks 1.522e-6 months from discovery of inoperable required feature(s) or declare the redundant required feature(s) powered from the inoperable A.C. source as inoperable and 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 or within the ACTION time of applicable ACTION statement(s) for the. inoperable required feature(s), whichever is more limiting.

C. With one offsite circuit and one diesel generator of 3.8.1.1 inoperable:

NOTE: Enter applicable Condition(s) and Required Action(s) of LCO 3/4.8.3, ONSITE POWER DISTRIBUTION - OPERATING, when this condition is entered with no A.C. power to one train.

Restore one of the inoperable A.C. sources to OPERABLE status within 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-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 .

2. Following restoration of one A.C. source (offsite circuit or diesel generator), restore the remaining inoperable A.C. source to OPERABLE status pursuant to requirements of either ACTION a or b, based on the time of initial loss of the remaining A.C. source.

This ACTION is required to be completed regardless of when the inoperable EDG )

is restored to OPERABILITY.

8Activities that normally support testing pursuant to 4.8. 1. 1.2.a.4, which would render the diesel inoperable (e.g., air roll), shall not be performed for testing required by this ACTION statement.

SHEARON HARRIS - UNIT I 3/4 8-2 Amendment No.

ELECTRICAL POWER SYS A.C. SOURCES OPERATING LIMITING CONDITION FOR OPERATION

~TN <<i d

d. With two of the required offsite A.C. sources inoperable:

1. Restore one offsite circuit 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 ; and

2. Verify required feature(s) are OPERABLE. If required feature(s) are discovered to be inoperable at any time while in this condition, restore the required feature(s) to OPERABLE status within 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months from discovery of inoperable required feature(sf or declare the redundant required feature(s) inoperable and be sn at least HOT STANDBY within the next 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months and COLD SHUTDOWN within the followinq 30 hours3.472222e-4 days 0.00833 hours 4.960317e-5 weeks 1.1415e-5 months or within the ACTION time of applicable ACTION statement(s) for the inoperable required feature(s), whichever is more limiting.

3. Following restoration of one offsite A.C. source, restore the remaining offsite A.C. source in accordance with the provisions of ACTION a with the time requirement of that ACTION based on the time of initial loss of the. remaining inoperable A.C. source.

With two of the required diesel generators inoperable:

1. Perform Surveillance Requirement 4.8.1. 1.1.a within 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months and once per 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months thereafter; and

82. Restore one of the diesel generators to OPERABLE status 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 and in COLD SHUTDOWN within the following 30 hours3.472222e-4 days 0.00833 hours 4.960317e-5 weeks 1.1415e-5 months .

3. Following restoration of one diesel generator, restore the remaining diesel generator in accordance with the provisions of ACTION b with the time requirement of that ACTION based on the time of initial loss of the remaining inoperable diesel generator.

With three or more of the required A.C. sources inoperable:

1. Immediately enter Technical Specification 3.0.3.

2. Following restoration of one or more A.C. sources, restore the remaining inoperable A.C. sources in accordance with the provisions of ACTION a b c,d and/or e as applicable with the time requirement of that ACtIPN based on the time of loss of the remaining inoperable A.C. sources.

g. With contiguous events of either an offsite or onsite A.C. source becoming inoperable and resulting in failure to meet the LCO:

1. Within 6 days restore all A.C. sources required by 3.8.1. 1 or be in at least HIT 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 .

5'Activities that normally support testing pursuant to 4.8. 1. 1.2.a.4, which would render the diesel inoperable (e.g., air roll), shall not be performed for testing required by this ACTION statement.

SHEARON HARRIS - UNIT 1 3/4 8-3 Amendment No.

h

ELECTRICAL POWER SYS A.C. SOURCES OPERATING LIMITING CONDITION FOR OPERATION

~TIOII <n l.ess than or equal to 10 seconds. The generator voltage and frequency shall be 6900 i 690 volts and 60 or equal to 10 seconds after the start signal.

i 1.2 Hz in less than

This test shall be conducted in accordance with the manufacturer's recommendations regarding engine prelube and warmup procedures, and as applicable regarding loading recommendations.
SHEARON HARRIS - UNIT 1 3/4 8-5 Amendment No.
TABLE 4.8-1 HAS BEEN DELETED SHEARON HARRIS - UNIT 1 3/4 8-10 Amendment No.
C ~
3 4.8 ELECTRICAL P SYSTEHS BASES 3 4.8. 1 3 4.8 ' AND 3 4.8.3 A.C. SOURCES D.C. SOURCES AND ONSITE POWER R 0 The OPERABILITY of the A.C. and D.C power sources and associated distribution systems during operation ensures that sufficient power will be available to supply the safety-related equipment required for: (1) the safe shutdown of the facility, and (2) the mitigation and control of accident conditions within the facility. The minimum specified independent and redundant A.C. and D.C.
ower sources and distribution systems satisfy the requirements of General esign Criterion 17 of Appendix A to 10 CFR Part 50.
The switchyard is designed using a breaker-and-a-half scheme. The switchyard currently has seven connections with the CPEL transmission network; each of these transmission lines is physically independent. The switchyard has one connection with each of the two Startup,Auxiliary Transformers and each SAT can be fed directly from an associated offsite transmission line. The Startup Auxiliary Transformers are the preferred power source for the Class 1E ESF buses. The minimum alignment of offsite power sources will be maintained such that at least two physically independent offsite circuits are available. The two physically independent circuits may consist of any two of the incoming transmission lines to the SATs (either through the switchyard or directly) and into the Class 1E system. As long as there are at least two transmission lines in service and two circuits through the SATs to the Class lE buses, the LCO is met.
During NODES 5 and 6, the Class lE buses can be energized from the offsite transmission net work via a combination of the main transformers, and unit .
auxiliary transformers. This arrangement may be used to satisfy the requirement of one physically independent circuit.
The ACTION requirements specified for the levels of degradation of the power sources provide restriction upon continued facility operation commensurate with the level of degradation. The OPERABILITY of the power sources are consistent with the initial condition assumptions of the safety analyses and are based upon maintaining at least one redundant set of onsite A.C. and D.C.
power sources and associated distribution systems OPERABLE during accident conditions coincident with an assumed loss-of-offsite power and single failure of the other onsite A.C. source. The A.C. and D.C. source allowable out-of-service times are based on Regulatory Guide 1.93, "Availability of Electrical Power Sources," December 1974. There are additional ACTION requirements to verify that all required feature(s) that depend on the remaining OPERABLE A.C. sources as a source of emergency power, are also OPERABLE. These requirements allow a period of. time to restore any required feature discovered to be inoperable, e.g. out-of-service for maintenance, to an OPERABLE status. If the required feature(s) cannot be restored to an OPERABLE status, the ACTION statement requires the redundant required feature, i.e. feature receiving power from an inoperable A.C. source, to be declared inoperable and a contro'fled plant shutdown performed. The a'llowed operating times to restore an inoperable required feature to an OPERABLE status is based on the requirements in NUREG 1431. The term "verify", as used in these ACTION statements means to administratively check by examining logs or other information to determine the OPERABILITY of required feature(s). It does not mean to perform the Surveillance Requirement needed to demonstrate the OPERABILITY of the required feature(s).
SHEARON HARRIS - UNIT 1 B 3/4 8-1 Amendment No.
I Ip,

ML18011A586

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