ML20054E118

From kanterella
Jump to navigation Jump to search
Proof & Review Copy of Tech Specs Re NRR Unresolved Items
ML20054E118
Person / Time
Site: Summer South Carolina Electric & Gas Company icon.png
Issue date: 04/19/1982
From:
SOUTH CAROLINA ELECTRIC & GAS CO.
To:
Shared Package
ML20054E113 List:
References
NUDOCS 8204260156
Download: ML20054E118 (14)
v • d • e


Text

{{#Wiki_filter:_ _ _ _ _ _ _ _ _ FZ W e g g:3.if g3cy7 INSTRUMENTATION REMOTE SHUTDOWN INSTRUMENTATION LIMITING CONDITION FOR OPERATION 3.3.3.5 The remote shutdown monitoring instrumentation channels shown in Table 3.3-9 shall be OPERABLE with readouts displayed external to the control . room. . :,., = ~- APPLICABILITY: MODES 1, 2 and 3. J ACTION: .,'. 7.

(.,..

. ap... ',.. y.; a. With the number of OPERABLE remote shutdown monitoring channels less than required by Table 3.3-9.,gr::ter: the h:grek danne.1 to with h 7 d:y:N, er be b HOT SH"E 0"" withh th -Or:1*SL" :tatu:

r. xt -

12 h;urs. ,:r. ? p . :c ~ b. The provisions 'of, Specification' 3.0.4 are 'not applicable..; c g..,, i. -..~.. ' - :v :

n. ', -
c..: *:

.tJudin ? elap. cif0er.-lse,, -<s,ho-o..;fL = **E*io*ra bic ~ch ,a f,y fa o,.wkg fe skky~ ~- p ro st e o H,ee-h t4e',. of m ea s" ***m 14 e M srele m uNf..s'd W m e;. s_ er e C,...s I R.r.* t G~ tesik p .su.,.t j, 3,,,,.p,y,.,,,,,, 2 M h-: y t% y h ~r C.- reshaty f4e t~pa m gje ,.,,, f ,g_. g o **4I' COf. Of4e-w,s t e 4e in hot.ryuroo w w g,.. $ ,,,,f % J1 hes-rs. SURVEILLANCE REOUIREMENTS 4.3.3.5 Each remote shutdown monitoring instrumentatiori channel shall be d:monstrated OPERABLE by performance'of the CHANNEL CHECK and CHANNEL . CALIBRATION operations at the frequencies shown in Table 4.3-6. A m I 8204260% a SUMMER - UNIT 1 3/4 3-53

L ) i hj h {, { ! INSTRUMENTATION ACCIDENT MONITORING INSTRUMENTATION LIMITING CONDITION FOR OPERATION 3.3.3.6 The accident monitoring instrumentation channels shown 'in Table 3.3-10 shall be OPERABLE. p APPLICABILITY:.. MODES 1, 2 and 3. ... ~ ACTION: ~ With the number of OPERABLE accident monitoring channels less than a. the Required Number of Channels shown in Table 3.3-10 the it.o OP 1'3LE :t:tu: within 9 re:t:r: - -c.t leh:g.rebia channci(:) t: ty:, er h in - t HOT SHLTD0"" with'a'the next 12 hour:. j c' br With the number of OPERABLE accident.inonitoring channels less than the Minimum Channels OPERABLE requirements' of Table 3.3-10 e 'her ^ u+4, aMsi ,.ee --e +se 4-e,e esie -s e e.,e i e +n nocos o, e e+*,,e 5:$'IE' At iE :t [i5U5$6E0'M.Ei+h'h th5 5At ifb55r:.-~ J '.,, a,. ~ c. The provision: of Specification 3,0.4 are not applicable.3. - urth:, 4e 11ours eithe+ res M e ' f4e in <>perulle-chm / h ap e,.11e sledu.r on da <.nd c~yrout ot4es-s., eu, & s.1earwidg f$ e. Ln:f < Cracta.1 b y,<f J. f4e p, e{a4 p-lcu.d )h c ac. C. eu+ios c.9. 1. eas t,.,, f<, p w y en sym r " er =m'Ye in oye~6le teafm eu hy fs s,1e.m Lte sk/s.t. c>fice. w. (~ bc !^ iturnauw uimi., ne m # n. A r ez* SURVEILLANCE REOUIREMENTS 4.3.3.6 Each accident monitoring instrumentation channel shall be demonstrated OPERABLE by performance of the CHANNEL CHECK and CHANNEL CALIBRATION operations at the frequencies shown in Table 4.3-7. udla ? dss et h >es/>+e f4e l,.prea. t. le c4a e.l 6 ese).dle fish ~t av p ovea{e e,ff a,. o p ne e,,ntag fg, p_,,j,,,,,3 % m a a,., su L,.,;{ a. $ye.a.t I jfep,J Jo /4e c. ,.,,is a 1:>., y c. s u _ + f, Specific,J.n G. 9.1 on.fli>< f y fie,o /., r A,e i.e ch er;,3 the-i s of *v a.4le isrfr~~cnf60 fe e,p e n 4 /a. skl s, o/4e~tse 4e A HoY S H a. Y D o w A/ wth in He d ex't I - I' ' " ' '. v

c. :

e 7:L SUMMER - UNIT 1 3/4 3-56 Q.y agr;n- ~

- - y l REACTOR COOLANT SYSTEM ~ D* ROM 3 DPf'm ""W- ~ _ " ""_' _' d I b I SURVEILLANCE REOUIREMENTS (Continued) 4.4.5.3 Insoection Frecuencies - The above required inservice inspections of steam gener: tor t:2c:; shall be performed at the following frequencies: a. The first inservice inspection shall be performed after 6 Effective Full Power Months but within 24 calendar months of initial criticali Subsequent inservice inspections shall be performed at intervals of not less than 12 nor more than 24 calendar months after the previous inspection. If two consecutive inspections following service under AVT conditions, not including the preservice inspection, result in all inspection results falling into, the C-1 category or if two J consecutive inspections demonstrate that previously observed degra-dation has not continued and no additional degradation has occurred, the. inspection. interval may.be extended to a maximum of once per 40 months.

y.. /. ;,

. c. b'. "If the results of the inservice inspection of a steam generator conducted in accordance with Table 4.4-2 at 40 month intervals fall in Category C-3, the inspection frequency shall be increased to'at least once per 20 months. -The increase in inspection frequency shall apply until the subsequent inspections satisfy the briteria of Specification 4.4.5.3.a; the interval may then be extended to a -maximum of once per 40 months. Additional, unscheduled inservice inspections shall be perf rmed on c. each steam generator in accordance with the first sample inspection ]B specified in Table 4.4-2 during the shutdown, subsequent to any of the following conditions: g 1. Primary-to-secondary tubes leaks (not including leaks originating from tube-to-tube sheet welds) in excess of the limits of Speciffdation 3.4.6.2. t 2. A seismic occurrence greater than the Operating Basis Earthquake 3. A loss-of-coolant accident repe 6 rn ia.J c y le.. y h jas]io n Q'. sufsguadu & suet, e.ay lude f4s %L kead cafet i yu mp s s r e not at,le h o.at fe.' e.L o f*"*p e rc.n e 4. A main steam line or feedwater line break. O b'/'"/></t p.q n> I t kh.. r M a ye n "ht:hh SUMMER - UNIT 1 3/4 4-13 Agl

I m REACTOR COOLANT SYSTEM ):1-C R Dpp] n~-$f u n.v.u u ~- OPERATIONAL LEAKAGE LIMITING ' CONDITION FOR OPERATION 3.4.6.2 Reactor Coolant System leakage shall be limited to: a. No PRESSURE BOUNDARY LEAKAGE, b. 1 GPM UNIDENTIFIED LEAKAGE, - h 1 GPM total primary-to-secondary leakage through all steam c. generators not isolated from the Reactor Coolant. System and 500 gallons per day through any one steam generator not. isolated from the Reactor Coolant System, d. 10 GPM IDENTIFIED LEAKAGE from the Reactor Coolant System, and 33 'GPM CONTROLLED LEAKAGE at a Reactor Coolant System pressure of c. 2235 ,20 psig. ~

  • 1 CPN lackag; et a ".=:ter C chnt Cyrk= prc:sur s'f b5 20 psig f.

frc; say Reactor Coolant System Pressure Isolation valvessp;ecified in -T8bl e 3. 4-1.- Shall />e OPfMBL E j> e v M e: L ee* y. y. 4..z. 2, APPLICABILITY: ~ MODES 1, 2, 3 and 4 9: (- ,f ACTION: ~ a. With any PRESSURE BOUNDARY LEAKAGE, be in at least HOT STANDBY within 6 hours and in COLD SHUTDOWN within the following 30 ho'urs, b. With any Reactor Coolant System leakage greater than any one of the above limits, excluding PRESSURE BOUNDARY LEAKAGE and Leakage from Reactor Coolant System Pressure Isolation Valves, reduce the leakage rate to within limits within 4 hours or be in at least HOT STANOBY within the next 6 hours and in COLD SHUTDOWN within the following i 30 hour's. I c. With eny "escter Cecient Syste; Pre 550ce !5elatiwu Liv. Laoi..we greater than the abcvc limit, i:chte th: high prc;:ur; p;rti:n af ( -the :ffected y:ter free the 1:e pre::ur p:rtion wit;.M ? hesis by -u : Of at 1:sst two closed ;;nual er deactivetod eutumouw vaiv =, -- k o in,+ 1,,+ unT cTaunny v4+h4n +ho mov+ c hm.. ,, -,4 4-rani n - S'iUTDOWN within the iciic ing 30 hewn. SURVEILLANCE REQUIREMENTS 4.4.6.2'.1 Reactor Coolant System leakages shall be demonstrated to be within each of the aoove limits by; Monitoring the reactor building atmosphere (gaseous or particulate) a. C radioactivity monitor at least once per 12 hours. I i with any Reactor Coolant Syste= Pressure Isolation Valve not ) OPERABLE per 4.4.6.2.2, provide at least one additional closed isolation valve between the RCS and low pressure portions of the system for each Reactor Coolant System Pressure Isolation Valve not OPERABLE. o r__r ed u c e _ RC S __1cerawnRn__Rre__<JSf61(d1__1gotrt__

bli REACTOR COOLANT SYSTEM Cl $2,J ].'[ SURVEILLANCE REOUIREMENTS (Continued) Monitoring'the reactor building sump inventory at lekst once'per b. ~ 12 heure. ~ Measurement of the CONTROLLED LEAKAGE' to the reactor coolant pum;i c. seals when the Reactor Coolant System pressure is 2235 20 least once per 31 days with the modulating valve fully open.psig at The provisions of Specification 4.0;4 are not applicable for entry into MODE 3 or 4. d., Performance of a Reactor Coolant System water inventory balance at 1 east once per 72 hours. 7-Moni,toring the reactor head flange leakoff system at least once per e. 24 h6urs. ~

  1. 4.4.6.2.2.EachJReactor' Coolant ' System Pressure Isolation Valve'specified in

~ Table 3.4-1 shall be demonstrated OPERABLE pursuant to Specification 4.0.5, except that in lieu of any leakage testing required by Specification 4.0.5, each valve shall be demonstrated OPERABLE by verifying leakage to be within 14e -irte limity.c ecif' d. in 75 L le 2, sf ~ ).- r ,_Every_ refueling outage during startup. a. b. Prior to returning the valve to service following maintenan a repair or replacement work on the valve. Prior to entering MODE 2 following valve actuation due to automatic c. or manual action or flow through the valve for valves denoted on Table 3.4.-1 by an asterisk. d. The provisions of Specification 4.0.4 are not applicable for entry into MODE 3 or 4. S 9 e G SUMMER - UNIT 1 3/4 4-20 {

TABLE 3.4-1 Reactor Coolant System Pressure Isolation Valves Valve No. Description Maximum Allowable Leakage (1) 8993A SI to Hot Legs Loop 10 GPM 8993B SI to Hot Legs Loop B 10 CPM 8993C SI to Hot Legs Loop C 10 GPM 8988A SI Lov Head to Hot Legs A 10 GPM 8988B SI Lov Head to Hot Legs B 10 GPM-8998A SI to Cold Legs, Loop A 10 GPM 89983 <'.!SI to Cold Legs Loop B 10 GPM 8738C SI to Cold Legs Loop C 10 GPM ~- 8973A RER Lov Head to Loop A 10 GPM 8973B RER Low Head to Loop B 10 GPM 8973C RRR Lov Head to Loop C 10 GPM 8948A* Accumulator to Loop A 10 CPM 8948B* Accumulator to Loop B 10 GPM 8948C* Accumulator to Loop C 10 GPM 8956A* Accumulator to Loop A 10 GPM g 89563*-., iccumulator to Loop B 10 GPM 8956C* Accumulator to Loop C 10 GPM a*

.r

.'.? L .~- t (1) Leakage measurements shall be conducted persuant to 4.0.5. 1The minimum differential pressure shall be E 1000 psid and the leakage rate shall be corrected to 2235 psid. e e e e e 4 4 l

O"0 PLANT SYSTEMS I sl'uu"l"- W" c'lnn, for' i;'. 3/4.7.3 COMPONENT COOLING '.!ATER SYSTEM GE/ LIMITING CONDITION FOR OPERATION 3.7.3. At least two.inIdepend.ent component coolin.g wa.ter l. oops sha.1J be.. OPE 5ABLE, a ~-.,.n- .c vi. <.,. p.r e. APPt.ICA8'ILITY:. MODES.1,.,2, 3 nd."..,1. c

~- -
..s

... : ~. : - .. ACTION:

  • i-With only one comporient cooling water 1oop OPERABLE, restore' at leasti'two.

loops to OPERA.BLE status within.72 hours or. be in at least HOT STANDBY within the next 6 hours and in -set +3 SHUTDOWN within the following 30 hours. . ROT

  • r.

SURVEILLANCEREOUIRE$ENTS H , V;:. '.4. 7.3 4tdeast two. component 'eco'ltnd.kater loops'*s'6a'11 bei demonst'rdked NER'ABl$ y At least once per 31. days by. verifying that each v_alve (manual, a. power operated or automatic) servicing.sa @ty'r,ela.ted equipment t, hat is not Tocked, 'ssaled', or ' therwise secured in p'osition is in its o - correct positi'6n.-~" l ..r g g. 1 e i 1

PLANT SYSTEMS O ....p:-- U> m er"} n e N 3/4.7.4 SERVICE WATER SYSTEM '( u d d '..:' h U t U I LIMITING CONDITION FOR OPERATION 3.7.4 At.least.two independe'n.t, serv. ice water loops.shall'be.0PERABLE.,..,. I :'// .. :. : c,- ; . :. ~., -.- y,- ;.:.:. ' APPLICABILITY:

  • MODES 1,.2,: 3 -=d . /

~ y... ..s/ k.. ' ' ACTION: ^.' y With only one service water loop OPERABLE, re~ store 'at'least two loops to OPERABLE status within 72 hours or be in at.least HOT STANDBY within 6 hours and iri HUTDOWN within the following 30 hours.

n....

. SURVEILLANCE RE00IREMENT5 ed' ~ 5,... ...r ~. ... :....... :. *;.. :.~ i a - :.-? ~ H *. :. : ' , : 'd. :'d; i 4.7.4 At least two' service water loops shall be demonstrated.0PERABLE: i

\\ " -

At least orice per 31 days by ~v4rifying that each' valve (manual, a. power ope' rate'd' or dutoma' tic) servicing safety related equipment that - is not locked, sealed, or otherwise secured'in position, is in its correct position. b. . At least. once per 18 months during shutdown, by verifying that eacb - automatic valve' servicing' safety re' lated e' qui'pment'actuat'es to its currect p6sition on a simulated 'SI test signal or o'n an ESFLS.,,as appl.icable. At least once per 18 months, by verifying that each service water c. system booster pump starts automatically on a safety injection signal. t 6 o SUMMER - UNIT 1 3/4 7-12

~ PLANT SYSTEMS g 1 +}f a mwpr:d CDPY f a naz 3/4.7.5 ULTIMATE HEAT SINK ~~ LIMITING CONDITION FOR OPERATION 3.7.5 The service water pond (ultimate heat sink) shall be OPERABLE with: ~ .. a...A minimum wat.er,levet at p.r aline. elevation'41.5 MeandSea Lgiv'ei, 'Ti - . I. *,- , USGS. datum,,and e, .~ ."'l~.i'. . -{.........- ...s g b.' A. water temperature of.less than or equal to 95 F at the discharge ,of t,he service water pumps. APPLICABILITY: ' MODES 1,-2, 3 d d i. ~ .. gc31on:. --With th6'fetuireinNts of the above specification not satisfied, be#in at least t g.; s., HOT...STAN.DBY., w.ithin.6 hour.s,. and in. 00'a SHU.TDOWN,wi..th.i{)..the.,follp. wing,30.hou g... 1. .. g.

r. -

s ..s. SURVEILLANCE RE0'IRMENTS U p 4.7;5. The service water pond shall be determined '0PERABLE at least.ontecper '24 hoors by veri'fying the watef tem *peraturi anif water level to' be withi'n'the'i'r. ~ limits. ~ s SulNER - UNIT 1 3/4 7-13 ~

1 PLANT SYSTEMS ...pc p 7: r"} nc."N ) 3/4.7.4 SERVICE WATER SYSTEM rud -i U) '..O fD UkII i LIMITING CONDITION FOR OPERATION I 3.7.4 At.least, two independent.ser.v. ice water loops.shall' be 0PE.RAB c, : , :,.m.:

. ~.

c.'- 1 i. /. APPLICABILITY:

  • HODES 1. t.2,:.3 :.M. f. /.,..

.s *- ...s . ACTION:.

  • ~.

With only one service water loop OPERABLE, re' store 'at'least two loops to OPERABLE status within 72 hours or be in at.least HOT STANDBY within the n 6 hours and iri HUTOOWN within the following 30 hours. v.. . SURVEILLANCE REOUIREMENTS ),.....t. s.. :........... ;.. :.~ i - :.-?

9.*.:. : _

, :.. O ';;'d ;* 4.7.4 At least two service water loops shall be demonstrated.0PERABLE:

\\

At least orice per 31 days by vsrifying that each" valve '(manual, a. power ope' rate'd' or automatic) servicing safety related equipment that - is not locked, sealed, or otherwise secured'in position' is in its correct position.

b., At least once per 18 mor ths during shutdown, by verifying that each -

automatic valve ' servicing. safety re' lated e' qui,pment actuat'es to its ~ correct p6sition on a simulated 'SI test signal or o'n an ESFLS.,,as appl.icable. At least once per 18 months, by verifying that each service water c. system booster pump starts automatically on a safety injection signal. s SUMMER - UNIT 1 3/4 7-12

s 2D E353 UY 3/4.8 ELECTRICAL,,, POWER SYSTEMS. 3/4.8.1 A. C. 50i.9CES 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 l l b. Two. separate and independent diesel generators, each with: 1. A separate day fuel tank containing a minimum volume of 300 ' gallons of fuel, ~ Ascharat'efuelstoragesystemcontainingaminimumvolumeof ~ 2. ~42,500 gallons of fuel, and i I 3. A separate fuel' transfer pump. l APPLICABILITY:, MODES 1, 2, 3, c.d ".. -ACTION: a. With either an offsite circuit or diesel. gene'rator. of the above required A.C. electrical power sources inoperable, demonstrate the OPERABILITY of the remaining A.C. sources by performing Surveillance Requirements 4.8.1.1.1.a and 4.8.1.1.2.a.4 within one hour and at least once per 8 hours thereafter; restore at least two offsite circuits and two diesel generators to OPERABLE status within 72 hours or be in at least HOT STANDBY wi. thin the next 6 hours and in GfH:9-ff( i SHUTDOWN within the following 30 hours. b. With one offsite circuit and one diesel generator of the above required A.C. electrical power sources inoperable, demonstrate the OPERABILITY of the remaining A.C. sources by performing Surveillance Requirements 4.8.1.1.1.a and 4.8.1.1.2.a.4 within one hour and at least once per 8 hours thereafter; restore at least one of the inoperable sources to OPERABLE status within 12 hours or be in at least HOT STANDBY within the next 6 hours and in COLD SHUTDOWN l within the following 30 hours. Restore at least two offsite circuits and two diesel generators to OPERABLE status within 72 hours from the time of initial loss or be in at least HOT STANDBY vithin the next 6 hours and in 09th SHUTDOWN within the following 30 4 hours. goT l l ~ SUMMER - UNIT 1 3/4 8-1

l r~ m ~ q. o r : m. p.m ELECTRICAL POWER SYSTEMS bd3C -OUd i ACTION: (Continued) ~ With one diesel generator inoperable in addition to Action a or b c. above, verify that: f.1) All required systems, subsystems, trains, ccmponants and devices that depend on the remaining OPERABLE diesel generator as a - l source of emergency power are also.0PERABLE, and (2) When in MODE 1, 2, or 3, the steam-driven auxiliary feed pump is OPERABLE. If these conditions are'not satisfied within 2 hours be in at least HOT STANDBY within the next 6 hours and in 4ef:fbSHUTDOWN within the' following 30 hours.

  1. W

~ d. With two of the above required offsite A.C. circuits. inoperable, demonstrate the OPERABILITY of two diesel generators by performing Surveillance Requirement 4.8.1.1.2.a.4 within one hour and at least once per 8 hours thereafter, unless the diesel generators are already- - ' operating; restore at least one of the inoperable of-fsite sources.to.. OPERABLE status.within 24. hours or be in i.t least HOT STANDBY within. the next 6 hours. With only one offsite source restored, restore at least two offsite circuits to OPERABLE status within 72 hours from time of initial loss or be in at least HOT STANDBY withinithe next 6 hours and in g p UTDOWN within the following 30 hours. .c-With tw'o of the above required' diesel generators inoperable, e. demonstrate the OPERABILITY of two offsite A.C. circuits by performing I l Surveillance Requirement 4.8.1.1.1.a within one hour and at least l once per 8 hours thereafter; restore at least ont of the inoperable diesel generators to OPERABLE status within 2. hours or be in at least HOT STANDBY within.the next 6 hours and in COLD SHUTDOWN within ~ the following 30 hours. Restore at least.two diesel generators to OPERABLE status within 72 hours from time of initial loss or be I in 1. east HOT STANDBY within the next 6 hours and in 69tfhSHUTDOWN within the following 30 hours. HvT SURVEILLANCE REOUIREMENTS 4.8.1.1.1 Each of the above required independent circuits between the offsite transmission network and the onsite Class 1E distribution system shall be: Determined OPERABLE at least once per 7 days by verifying correct a. breaker alignments, indicated power availability, and b. Demonstrated OPERABLE at least once per 18 months during shutdown by manually transferring unit power supply from the normal circuit to the alternate circuit. 4.8.1.1.2 Each diesel generator 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, SUMMER - UNIT 1 3/4 8-2

y ELECTRICAL POWER SYSTEMS ?p..- o,p $y rte;h*J d C T. 4.5\\.4 uvf$ pe ,s e 3/4.8.2 D.C. SOURCES OPERATING LIMITING CONDITION FOR OPERATION 3.8.2.1 As a minimum the following D.C. electrical sources shall be OPERABC: 125-volt Battery bank.No. IA and its associated full capacity charger. a. 125-voltfBatterybankNh.1 Band.itsassociatedfullcapacitycharger. b. ..e APPLICABILITY: MODES 1, 2, 3 M '. ETION: With one N the required battery banks inoperable, restore the inoperable c. battery bank to OPERABLE status within 2 hours.or be in a't least HOT i e STANDBY with'in the next 6 hours and in cetfbSHUTDOWN within the following 30 hours.

  1. dC.

With one of t' he required full capacity chargers inoperable, demonstrate b. the OPERABILITY of its associated battery bank by performing Surveillance Requirement 4.8.2.1.a.1 within one hour, and at least once per 8 hours thereafter. If any Category A limit in Table 4.8-2 is not met, declare the battery inoperable. SURVEILLANCE REOUIREMENTS 4.8.2.1 Each 125 volt battery bank and charger shall be demonstrated OPERABLE: a. At least once per 7 days by verifying that: 1. The parameters in Table 4.8-2 meet the Category A limits, and 2. The total battery terminal voltage is greater than or equal to 129 volts on float charge. o d SUMMER - UNIT 1 3/4 8-9

u o F ELECTRICAL POWER SYSTEMS 3/4.8.3 ONSITE POWER DISTRIBUTION OPERATING LIMITING CONDITION FOR OPERATION 3.8.3.1 The following electrical busses.shall be energized in th'e specified manner with tie breakers open between redundant busse,s: a. Train A A.C. Emergency Busses consisting of: 1. 7200 volt Emergency Busses # 1DA and IEA. 2. 4B0 yolt Emergency Busses # 1DA1, IDA2 and IEA1. b. Train B A.C. Emergency Burses consisting of: 1. 7200 volt Emergency Busses # 1DB and 1EB. 2. 480 volt Emergency Busses # 1DB1, 1D82, and 1EBl. c. 120 volt A.C. Vital Busses # 5902, 5907 and 5901 energized from an associated inverter connected to D.C. Bus # 1HA*. d. 120 volt A.C. Vital Busses # 5904,.590B and 5903 energized from an ,./ associated inverter connected to D.C. Bus # 1HB". 125 volt 'D.C. Bus 1HA energized from Battery Bank #1A. e. f. 125 volt D.C., Bus 1HB. energized from Battery Bank #18.. MODES 1,2,3,:r[L- .y ~' APPLICABILITY: f. E" < ACTION: L With one of the required trains of A.C. Emergency busses not fully a. energized, re-energize the division within 8 hours or be in at least-HOT STANDBY within the next 6 hours and in C % SHUTDOWN within the following 30 hours. NOT b. With one A.C. Vital Bus either not energized from its. associat'.ed inverter, or with the inverter not connected to its associated D.C. Bus: (1) re-energize the A.C. Vital Bus within 2 hours or be in at _ goy least HOT STANDBY within the next 6 hours and in MSHUTDOWN within the following 30 hours; and (2) re-energize the A.C. Vital Bus from its associated inverte'r connected to its associated D.C. Bus within 24 hours or be in at least HOT STANDBY within the.next 6 hours and in COLD SHUTDOWN within the following 30 hours..

  • c.

Vith one D.C. Bus not energized from its associated Battery Bank, re-energize the D.C. bus from its asscciated Battery Bank within 2 hours or bE in at least HOT STANDBY witnin the next 6 hours and in NSHUTDOWN within the following 30 hours. Har "Three inverters may be disconnected from.their 0.C. Bus for up to 24 hours as necessary for the purpose of performing an equalizing charge on their associated battery bank provided (1) their vital buses.are energized, and (2) the vital busses associated with the other battery bank are energized g from their associated inverters and connected to their associated D.C. Bus. C SU mIR - UNIT 1 3/4 8-13 . MAR 0 3 Ej2 i __}}

Retrieved from "https://kanterella.com/w/index.php?title=ML20054E118&oldid=4497663"