ML20102A237
| ML20102A237 | |
| Person / Time | |
|---|---|
| Site: | Hatch  |
| Issue date: | 07/17/1992 |
| From: | GEORGIA POWER CO. |
| To: | |
| Shared Package | |
| ML20102A227 | List: |
| References | |
| NUDOCS 9207240137 | |
| Download: ML20102A237 (28) | |
Text
_ _ _ _ _ _ _ _ - _ _ _ ___- _ -
ENCLOSURE 3 PLANT HAlCH - UNITS 1, 2 NRC 00CKETS 50-321, 50-366 CPERATING LICENSES'0PR-57, NPF-5 REQUEST TO REVISE TECHNICAL SPECIFICATIONS:
f%GLLHJiG,E INSTRUCTIONS The proposed change to the Plant Hatch Unit 1 Technical Specifications will be incorporated as follows:
Remove Pa.qq Insert Paae 3.9-2b 3.9-2b 3.9-3 3.9-3 3.9-3a 3.9-3b 3.9-5 3.9-5 3.9-6 3.9-6 3 9-6a 3.9-6a 3.9-9 3.9 3.9-10 3.9-10 3.9-12 3.9-12 k
3.9-12a 3.9-12b 3.10-10 3.10-10
+
The proposed change to the Plant Hatch Unit 2 Technical Specifications will be incorporated as follows:
Remove Pace Insert P_agg 3/4 8-4 3/4 8-4 HL-2225 003443 E3-1 9207240137 920717 P
'.ADOCK 05000321 PDR PDR.
LIMITifG totalT10NS FOR OP[ RATION SURVEILLQlCE PEOUIREMEKIS 4.9.A.2.
ita*xiby AC Power $unolv (Qigitl
~ LeneratorslA.IB.and.lG1 (Continued)-
- n. Doerability (Continued) l diesel generator shall be l-loaded to 2 3000 kW* and during the remaining 22_
hours of this test, the diesel generator shall be loaded to 2775-2825 kW*.**
7.
At least once per 18 months during shutdowm, verify the auto-connected loads to each diesel generator do not l
exceed 3100 kW.
8.
At least once per 18 months during shutdown, verify.
the diesel generator's
(
capabi'ilty to synchronize-with the offsite power sotre while the generator
's baded with its emergency ;
- loads upon a simulated mstoration of offsite power, to transfer its
. loads to the offsite power-
. Sourc, and to proceed through its shutdown-sequence.
- 9. : At least oni wrIl8 months
-during shute 4, verify _
thtt with De ':esel l
. generator operating in the l~
testmode(connectedto its bus), a siaulated.
LOCA actuation signal -
overrides the test m de by returning the diesel generator to standby operation and automat-:
ically energizes the-emergency loads with -
offsite power.-
- 10. : At least once per 10 years, or after any Mifica :.
tions which could affect diesel generator inter-dependence, verify that -
- all three die:e1 gem. tors :
start sireltaneously durir.g -
!~
shutdcwn, and accelerate to synchronous speed in
.5 12 seconds.
%wr.tary variations outside this band shall not invalidato the. test.-
- For the IB diesel generator, 'a single 24-hour load test every 18 mnths will satisfy the requirements of Unit 1 Specif1:ation 4.9.A.2.a.6 and Unit 2 Specification 4.8,1,1.2.d.9.
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LIMITING COUDlil0NS FOR OPERATION SURVEILLANCE Rf.0VIRLMENTS 3.9.A.3, JJ)R50 Volt DC EmeteencY Post "
4.9 A.3. 'j25/250..yoit DC Ememene_y Ptwer j n lem (Plant Batteries lA aug
$nigri (Plant Batteries 1&,,q,gl r
El lEl Both 125/250 volt plant batter,es,
Every wek the specific pravityJ.
s.
lleekly Surveillance (IA and 18) shall be operable and shall have an operable battery -
and the voltage of the pilot cell changer and ventilation system and overall battery voltage shall available for each,
..be measurcd and recorded. Each 125 volt battery shall have a -
minirrun of 105 volts at the bat -.
tery teminals to be considered -
- operable, b.
Monthly Sune811arlgg Every month neasurerents shall be H
made of valtage of each cell to
~
the nearest 0.1 volt and the spe-cific gravity of each cell. -- These
- 1 reasurerents shall be recorded.-
Liquid level shall be checked
- visually, c.
Refuelino Outane Surveillance During each scheduled refueling
. outage, the batterits shall ba '
subjected to a rated load dis :
charge test,- The specific gravity 1
ad voltage of each cell shall be detemined atter the dischage
-and recorded.
4; {pemency al60 Volt Buses flE;
- 4..Deroency 4160 Volt Buses fIL IF. and 1G)-
IF. and 10.1 Theemogency4160voltbuses(IE,.
Theemergency4160voltbuses(IE.-
IF, and 1G) shall be monitored to-IF,andIG)shallbeenergizedand the extent that they are shown to' operable.
.be ready and capable, of trans-mitting the enemency. load.
- 5. icy voltaae Ememency Busu -
i a.
[gmency 600 Volt Bases (101
-l~
&nd 10) _
- a ', Ememency 600 Volt Buses (1C -
1-l and 10) l The emergency 63) vclt buses (1C and ID) shall be energized and 1heemergency600voitbuses(IC operable.
and10)shallbemonitoredtothe
= extent that they'are shown to be'
- b.
120/208VoltEssentialCabinetsfik ready and capable of transmitting-and IB) the eme gency load.
The 120/208 volt essential cabinets:
b,.120/208 Volt Essential Cabinets-(lAandIB)shallbeenergizedand-LLA and 181
The120/208v.11tessential ?
L c.
120/208 Volt Instnrent Buses f1A awj cabinets IA and IB) shall be' mc'titorst(to the extent that they
-El are shewn to be ready and capable The 120/208 voltinstrwentbeses(lA of transmitting the eme mency;
't.nd IB -shall be energized and _.
load.
l
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cperab e with their crosstie breakers:
Open.
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-J BIllNG W Oll10NS FOR OPfRATION _
SURVElllWEE RfQQlREMENTS 6.
[ygency 250 Volt DC to 600 Volt--
. c. : 120/208 Volt Instrument Buses (1A AC Inverters and1B1 The emmency 250 volt DC to 600;
- The 120/209 volt instrtrent buses
- volt AC inverters shall be ener.-
(lA and 18).shall be morltored to gized and operable, the extent that they are shown to be ready and capable of transmittingtheemegencyload.--
- At least once per seven (7) days -
the instrtsnent bus crosstie-breakers shall be verified to be-.
open.
. a..The emenoney 250 volt DC/600 volt AC inverters shall be moni-tored to the extent that they are shown to be ready and capable of transmitting the emergency load.
)
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J LIM 1ilf6 C00111m3 FOR OPERAT1m
$UEYEILtAttf. fEDUIREMails y._
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llMil1NG COW $[N0f OPERAIl0N SURVEILLANCE REOUIREMQRS 3.9.B.1 01e Startuo Auxiliary Transformt =
4.9.B.I. One Startuo Auxiliary Transformt (IC or 10) Inocerable or Only One 1]C or __ID) Inocerable or Only One Offsite Power Source Available Offsite Power Source Available f230 kV 1ransmission line)
(230kVTransmissionLine)-
Reactor operation is pemissible When it is established that one for seven days fra the date that startap auxiliary transformr one startup auxiliary transfontor (IC or 10) is inoperable or in-(10or10)isinoperableorin-ceing power is available fra cming power is available frm-only one 230 kV offsite trans-only one 230 kV offsite trans-mission line, verify correct alssion line pmvided the in-
- breaker alignmnts and indicar creased Surveillance Require-ted power availability within -
unts as stated in Specification one hour and at least once per 4.9.B.I. are t@lemented, eight hours thereafter, and perfonn Surveillance Require-ment 4.9.A.2.a.1 within Z4 hours, l-
- 2. One Olesel Cenerator flA. IBg
- 2. One Diesel Ganerator fIA. IB.
or IC) Incoarable or ICl.Inocerable fr m and after the data that nne When it is established that one -
of the diesel generators is made dieselgenerator(IA.-1B,-orIC) or found to be inoperable, continued is inoperable, verify correct reactor operation is pemissible in -
. breaker alignments and indicated accordance with Specification 3.5.C.
-power availability within one hour-for a period not to exceed seven and at least once per eight hours days provided that two 230 kV off-thereafter, and perform Surveill-site transmission lines are avail-ance Requirement 4.9.A.2.a.1 within i
able, both remaining diesel gen--
24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />, and every 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> erators and associated ertergency'-
thereafter.-
buses are operable, and the in-creased Surveillance Requirements as stated in Specification 4.9.B.2.
are i nlemented.
- 3. One 125/250 Volt DC Power System
- 3.,0ne 125/250 Volt DC Power Syste[
(P' ant Batterv 1A or IB) Inocer-(P' ant B tteev 1A or 18) Incoer-i Wk
. fra and after the date that one When it is established that one of of the two 125/250 volt plant bat-the125/250 volt DC power systems teries is made or found to be in.
(plantbatterylAorIB)ismade-operable, continued reactor oper-or fc W to be inoperable, the atton is pemissible during the-pilot cell voltage and specific-
~
succeedingseven(7)dayswithin-gravity and the overall battery.
electrical safety considerations, voltage of the operable plant bat-provided repair work is initiated tery shall be tested daily and de -
imediately to return the failed temined to be satisfactory.
co@cnent to an operable state, Specification 3.5.G. is satisfied, HATCH - UNIT 1 3.9-5 techsp\\hT92-02AUl\\147
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llM111NG C0rolil0NS FOR OPEPATION SURVEltlANCE Rf00lP1MENTS 3 0.3. Qag_,121/2M_yolt DC Power Systsel (Plant Battery 1A or lth Inaner-Ahlg (Continued) and the increased Surveillance Requirements as stated in Spect-fication 4.9.8.3 are implemented.
4.
Emeroency 4160 VoltJqm (IE.1F.
or IG) laooerable One of the emergency 4160 volt buses (IE,if,or10)maybein-operable for a period not to exceed seven(7)consecutivedaysprovid-ing the other two emergency 4160 volt buses and associated LCCS equipment are operable.
- 5. LMr Voltane Erertency Bulgg l
- a. Ercreency 600 Volt Buses (1C or l
ID)Iroggrable One of the exryency 600 volt buses
-(IC or 10) nay te inoperable for a periodnottoexceedseven(7) days providing the other F00 volt bu. is
- b. 120/208 Volt Essential Cabingh flA and IB)
One of the 120/208 volt essential cabinets (IAand18)maybe-inoperable for a period not to exceedeight(8)hoursproviding-the other 120/208voltessentM1 cabinet is operable. Both of the 120/208 volt essential cabinets (IAandIB)maybeinoperablefor a period not to exceed two (2) hoursJ c.
120/208 Volt Instrument Euses flA I
121 11]
One of the 120/208 volt instru mnt buses (IA or IB) may be inoperable for a period not to exceed eig't (8)hoursprovidingtheother 120/208voltinstrmentbusis operable. Both of the 120/208-voltinstrmentbuses(IAandIB) may be inoperable for a period not it,exceedtwo(2) hours.
- 6. ~ Emernency 250 Volt DC in 600 Volt AC Inverters One of the emenyency 250 volt DC to 600 volt AC inverters may be inoperable far a period not to exceedseven(7)consecutivedays providing the other inverter is operable.
HATCli - llNIT 1.
3.9 techsp\\h\\92-02AUl\\B2
- J 1
e LIMITING CONDITIONS FOR OPERAi10N SURVEllLANCE R[0VIRE}iENT5 C.
Diesel cenerator Reautremnts (Reactor in the Shutdown or Refuel Mode)*
Whenever the reactor is in either the Shutdown or Refuel Mode, a mininun
^
of two diesel generators shall be operable whenever:
1.
Work is being done which has the-potential for draining the reactort-pressure vessel, or 2.
Secondary containment is required, or 3.
A core nr containment cooling sys-
. tem is required.
D, Electric Pwr Monitorino for the a.9.D.
Electric Power ibnitorino for Reactor Protection System Reactor Protection Sysigg Specifications:
Specifications:.-
1, When either of the RPS MG sets or the
- 1. The Electric Power Monitoring for Alternate Source is in service, its _
.the Reactor Protection System power monitoring system shall is
'shall be demonstrated operable:
OPERABt.E.
.(a) - At least one per 6 months (a) If the power nonitoring system is
- by perfaming a FUNCTIONAL.
-not OPERABLE and Operability.
TEST,5 cannot be restored within 30 minutes of discovery,,emove the (b) At least once per operating power supply from service inrediately
" cycle by demonstrating the thereafter.
OPERABILITY of urder-voltage..-
- over-voltage and under-fre-.
(b) One channel of a power monitoring quency protective instrunenta-system maj be inoperable, as '
tion by perfomance of a CHrJfiEL 1
necessary for test or maintenance, CAllBRATION including simu- _
not to exceed 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> per month.
. lated automatic actuation of -
the protective relays; trip-
. ping logic and output cir-l cult breakers and verifying:
the following setpoints:
_ (1)10ver voltage 5132 VAC, a
- (2) Under-voltage 1108 VAE.
with tine delay relay set
.:.to zero**
l f(3)- Under-frequency 157 Hz,
- with time delay relay set
.to zero**-
_ l0
"* This specification is not applicable when fuel is not in the reactor pressure vessel; however, one diesel gerarator.shall be operable andl-aligned to supply power as follows:
- a. To provide fuel pool cooling capability; a"d
- b. To provide power for one train of SGTS when secondary containment is required.
- Pending NRC approval of different value.
1 HATCH - Uti!T 1.
3.9-6a techsp\\h\\92-02AUl\\821
BASES FOR TIM 111NG C0rolT10NS FOR OPCRATION 3.9.A.5. Lowar voltaae furuency.fu111 I
- a. Emeruency 600 Volt Buses fit and 101 l
The energency 600 volt buses (1C and 10) shall be suppihd from the emer-gency4160voltbuses(IE,IF,and10)andthese600voltbusesshallprc.-
vide and distribute AC power to the engineered safety teatve notors rated at and below 200 horsepower.
- b. 120/208 Volt Essutial Cabinets flA and IB)
The 120/208 volt essential cabinets (1A and IB) shall be supplied fnn the mergency 600 voit buses (lC and 10) and these essential cabinets shall provide and distribute AC power to nwomus loads, sore with engineered safety feature applications.
c.120/208 Volt 1411Drent Buses f1A and IE0 The 120/208 volt instrvnent buses (lA and IB) shall be supplied from the 120/208 voit essential cabinets (IA and 18) and these instrumnt buses shall provide and diatribute AC power to instrumentation and controls, some with '
engineered safety feature applications.
6.
Emeruency 250 Volt DC/6n0 Volt AC Inverters The two (2) emergency 250 volt DC/600 voit AC in erters shall be supplied -
fromplantbatteries(IAandIB)andtheseinvertersshallsupply600 volts AC to Engineered Safety Feature valves of the LPCI and Recirculation Systems.
7.
Loaic Systems The op6rabt11ty of logic systems provides as.urance of proper' diesel starting perfomance upon receipt of an accident signal.. The operability shall be confimed by periodic tests. Failure of a logic system requires that reactor operation be teminated within seven (1) des and the reactor
. be maintained in the Cold Shutdown Cordition until tne logic systems are
- pmven operable.
B. Reautrements for Continued Goeration with loopgable Conronents 1.
00eStartunAuxiliaryTransformer(ICorID)InocerableorOnivOng Offsite Power Soun e Available (230 kV Transmission Line)
One startup auxiliary transfomer and one offsite transmission line can =
supr'y sufficient power to pemit functionirig of structures, systems, and corponents triportant to safety. The standby diesel generators will serve-as a backup to the preferred offsite power sources.
The failure of any co@onent use ciated wil 61esel generator units shall not jeopartire the car.bilhy of the t sing diesel generator units to start and supply the mininun required engineered safety feature loads.
One diesel generator may be allowed out of service based on the availability--
of power from the startup auxiliary transfomers and the fact that two diesel generators carry sufficient engineered safety feature equipment to cover any postulated design basis accidente A diesel generator shall be considered inoperable if it is_ incapable of automatically starting and.
mnning the required shutdown systems, emergency systems, and engtaeered safety feature loads.
- 3. One 125/250 Volt DC Power System (Plant Batterv 1A or IB)-Incoerable :
i Although loss of one of the two DC sources is highly improbable. loss of one -
. source would not prevent safe !.hutdown of the reactor. Loss of one of the 125/250 volt DC power systems does not affect plant safety since redundant loads continue to be supp11ei by the second system. However, since a' single
' failure cannot be tolerated, continued operatinn will be pemitted for only seven (7) days unless redu dancy is restored.
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MSES FOR tlMiliNG C0fDITIONS FOR OPEpATION
^
3.9.B.a Ememency 4160 Volt Buses (IE.1F. or 1G) Inocerable Iach of the three emergency 4160 volt emegency buses (IE, IF, and 10) is preferably supplied from the aJxiliary startup innsfomers with each bus nomally having a ingla diesel generator as a standby power supply, ihe critical emergency safety feature loads are divided among the three emer-gency 4160 volt buses, and failure of one bus does not prevent a safe shut-down of the reactor. Therefore, operation would be permitted for only seven (7) days after which the reactor shall be placed in the Cold Shutdown Condition.
- 5. tower Voltaae Ememency Buses i
- a. Eremency 600 Volt Buses flC or }D) Incoerahlt l
t The two emegency 600 volt buses (lC and 10) are nomally supplied from separateemenency4160voltbuses(IEandIGwithifasabackup). Failure of one bus cannot affect its redundant counterprt and loss of either bus will not pruent operation of the minimtn required emogency safety feature
- loads,
- b. 120/708 Volt Essential Cabinets (lA and 181 The two 120/208 volt essential cabinets w and IB) are nomally supplied from separate emergency 600 volt buses (IC and ID). failure of one bus cannot affect
-its redundant countemart and loss of either bus will not prevuot operation of the minimum required emergency safety feature loads,
- c. 120/208 Volt Instrirent Buses (1A and 131 The two 120/208voltinstrumentbuses(IAand18)arenormallysuppliedfromseparate 120/208 volt essential cabinets (IA and 18). ; Independence of the two instrument buses is assured by maintaining the it.csstie breakers open, failure of one bus cannot affect its redundant counterpart and loss of either bus will not prevent operation of the minimum required emertjency safety feature loads, The two instrtsnent buses are each powered by a different division of Class IE AC power. Therefore, if the buses are fourd to be crosstied while both buses are also tied to their nomal sources, then both buses must be considered inoperable.= If the buses are crosstied and only one bus is tied to its nomal souge, then :
only the bus which is not tied to itt norrnal source mrst be considered inoperable.
6.
Ememency 250 Volt DC to 600 Volt AC Inverter Inopgtahlt-The two emergency 250 volt DC to 600 volt AC inverters are nomally supplied from separate emergency plant batteries (IA and 10). - Failure of one inverter cannot affect its redundant counterpart, and loss of either bus will not prevent operation of the minimtn required emergency safety feature loads, j-C. Diesel Generator Reouirements'(Reactor in'the Shutdown or Refuel Mode).
This requirement provides added assurance that a standby power supply is avail-able under certain ciretnstances even though the reactor may not be critical L
and the reactor coolant temperature is less than 212'f.
i L
D. ESSMGSets Tha LCO will. minimize a possible fcilur? in the motor-generator set voltage regulating circuitry which,-if persistin0 for a sufficient period of time, could potentially result in degradation to the reactor protection system cornponents with --
the attendant potential loss of capability to scram the plant.
E. Peferences
- 2. General Design Criterion 17 of Appendix A to 10 CFR 50, 3.
' Proposed IEEE i iteria for Class IE Electric Systems for Nuclear Power Generating Stati es" (IEEE Standart! No -308), June,1969.
Order dated August 1,1978 HATCH - UNIT 1 3.9 10-
-techsp\\h\\92-02AUl\\48
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BAsf S FOR SURVEYLN(E RLOUIREMNIS I
e 4.9.A.2.e. fuel Oil Transfer Ptres -
4 following the monthly test of the dieselb the fuel oil transfer punps shall be operated to refill the day tank and to check the operation of these pmps.
3.
12$/250 Volt DC Emeroency Powr System (Plant Batteries 1 A and 181-The plant batteries may deteriorate with time,'but precipitous failure is unlikely. The type of surveillance described in this specification is that which has been demonstrated through experience
- 1 to provide an indication of a cell becoming irregular or inoperable -
U long before it falls.
1 4.
Ernemenev 4160 Volt Buses (IE.1F. and 1G1 -
The emergency 4160 volt buses (lE, If, and 1G)'are monitored to assure readiness and capability of transmitting power to the emergency load.
These buses distribute AC power to the required engineered safety feature equipment. The nonnal feeds and backup to the emergency buses (IE, if, and 1G) are taken from the startup auxiliary
. 1 transformers. If neither startup auxiliary transfomer is available, buses IE, if, and 1G will be energized from the standby diesel generators _
- 5. Lowar Voltaae Ememency Buses l
- a. Emroency 600 Volt Buses (1C and 1Q1 l
Theemergency600voltbuses(lCand10)_aremonitoredtoassure readiness and capability of transmitting the merpency lud.
- b. 120/208 Volt Essential Cabinett,11A and IB)
The 120/208 volt essential cabinets (IA and 18) are mnitored to assure readiness and capability of transmitting the emergency load.
- c. 120/208 Volt Instrurent Buses flA and IP)
The120/208voltinstrmentbuses(lAand16)aremonitoredtoassure readiness and capability of transmitting tM emergency load. The periodic verification that the crosstie breakers an op n assures the independence cl the two buses.
6._ Erneroency 250 Volt DC to 600 Volt AC Inverteri -
The emergency 250 volt DC to 600 volt AC inverie'rs are monitored to assure readiness and capability of transmittirg powr 16 the emergency loads.
- 7. Loaic Systems The periodic testing of the logic systems will verify the ability of.
the logic systems to bring the auxiliary electrical: systems to running standby readiness with the presence of an-sccident signal
-and/or a degraded voltage or LOSP signal. -
The periodic testing of the relays which initiate energitation of I the emergency buses by the diesel generators when voltage is lost on E
startup transfomer It will verify operability of these relays.
~
The periodic simulation of accidcnt signals will confinn the ability y
.of the 600 volt had shedding logic system to~ sequentially shed and restart 600 volt loads if an accident signal cre present and diesel _
t generator voltage were the only source of electrical power.
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BASES 10R SURVElLLANCE REDUtRIM NIS-t D. RPS 10 Sets The surveillance requirements for the RPS power supply equipment will ensure-the timely detection of potential conponent failures that might be caused by a -
sustaineu over-vetage or under vohage conditions.
t, References
+
- 1. ' Proposed IEEE Criteria for Class lE Electric Systems' for Nuclear PowerGeneratingStations"(IEEEStandardNo.300), June,1969.
- 2. - American $ociety for Testing and Materials,1970 Annual Book of ASTM
- Standartfs, Part 17.
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pas [$ f0R SURVlltLAQCL Et00lPLMElfli, 4.10. FEIVEllNC A.
gefuelina Interlocks Complete functional testing of all refueling interlocks.before any refueling outage will provide positive indication that the interlocks operate in the situations for which they were designed. By loading each hoist with a weight equal to the fuel assembly, positioning the refueling platform, and withdrawing control rods, the interlocks can be subjected to valid operational tests. Where redundancy is provided in the logic circuitry, tests can be performed to assure that each re+
dundant logic element can independently perform its functions.
C.
Core Monitorina Durina Core Alterations Requiring the $RM's t'i be functisnally tested prior to any cors alteration assures that the SRH's will be operable at the start of that alteration.
The daily response check of the $RM's ensures their continued operability.
{
D. leent fuel Pool Water level A weekly record of the Spent fuel Pool Water Level to determint that the minimum of 21 feet is maintained is considered sufficient to ensure that radiological shielding is maintained.
E. Control Rod Drive Maintenante Refueling interlocks and core monitoring surveillance are discussed in 4.10.A. and 4.10.C. above. The choice of the strongest-(hlghest reactivity worth) rod which will be used for a detemination of the relevant shutdown margins is based on prior core calculations supplemented by empirical data obtained frora similar cores. Inom stellar data and calculations the reactivity worth of rods adjacent to a withdrawn rod will also be known.
Thus the survelliance shutdown margins can be evaluated in terms of rod position.
F.
Reactor Buildina Cranes
= Hodifications to the main reactor butiding crane are being studied-in order to increase its ability to withstand a single failure. A spent fuel cask will not be 1tited untti these modifications have been accepted by the AEC and the AEC has approved the lifting of casks by the crane and the appropriate Technical Specifications.
G.
Seent Fuel Cask Lif tina Trunnions and-Yoke =
See note for Bases 4.10.F. above.
- 1. Crane Travel-Scent Fuel Storace Pagl Rcrer to Bases 3.10.1.
HATCH - UNIT 1 3.10 techsp\\h\\92-02Bul\\74
ELEC1RIML p0WER SYSTEMS SURVEllt ANCE RE0VIREMENTS (Continued) 4.
Verifying the diesel generator capability to reject a load of at least 2775 kW without tripping.
The generator voltage shall not exceed 4800 volts during and following the load rejection.*
5.
Simulating a loss of offsite power by itself, and:
a) Verifying de-energization of the emergency busses and load shedding from the emergency busses, b) Verifying the diesel starts on the auto-start signal, energizes the emergency busses with permanently connected loads in s 12 seconds energizes the auto-connected shutdownloadsthrougbtheloadsequencer, operates for 1 5 minutes while its generator is loaded with the shutdown loads, and achieves and maintains a l
steady-state voltage of _41601420 volts and-a steady-state frequency of 60 i 1.2 Hz.
6.
Verify that on an ECCS actuation test signal, without-loss of offsite power, the diesel generator starts on the auto-start signal and operates on standby for 15 minutes.
7.
(deleted) 8.
Simulating a loss of offsite power in conjunction with an ECCS actuation test signal, t.nd a) Verifying de-energization of the emergency busses and load shedding for the emergency busses.
b) Verifying the diesel. starts on the autu-start signal, energizes the emergency busses with permanently-connected loads in s 12 seconds, energizes the auto-connected shutdown (emergency) loads through the load sequencer, o 2 5 minutes while its generator is loaded with perates for the emergency loads, and achieves and mainta' ins a steady-state voltage of-4160 1 420 volts and a steady-state frequency of 60 1 1.2 Hz.
c) Verifying that all diesel, generator trips, except engine overspeed, low lube oil pressure and generator-differential, are automatically bypassed upon loss of voltage on the emergency bus concurrent with an ECCS actuation signal.
- For the 18 diesel generator a single full load rejection test every 18 months will satisfy the requirements of Unit 1 Specification 4.9 A.2.a.5 and linit 2 Specification 4.8.1.1.2.d.4.
HATCH-UNIT 2 3/4 8-4' techsp\\h\\92-02CU2\\l19 m
A LIMITING CDOITimi FOR MERATim RMIIt f A8CI MILWT5 4.9.A.f.
. hadbv Ac emer <-1v renaa.1 i m rators IA. la. and Itn tCentinued)
- a. Datdliling gentieund) dienei gansret, she11 w leaded u 13000 lee and
&ig the reestnig 22 hours2.546296e-4 days <br />0.00611 hours <br />3.637566e-5 weeks <br />8.371e-6 months <br /> of this last, the diesel peerstar shall be leaded u 277k38tl lea.**
- 7. At least once per le sonths hing siwtdem wrtfy the autoconnectedIoadsteeach esteed 3100 lei. e,sre not4 di.ni mtw
- 8. At least once per it sonths hig shutdem, wrtfy the diesel generator's capabt11tytasechrentse with the offsite peer asurte dile the generator is leaded wtth 1ts emergency leads upon a staulated resterstie of offsite peer, to transfer its 1eeds to the offstte power eturts, and te proceed through its shutdem sagance.
- 9. At least once por it amths bring shutdem wrify.
thatwiththediesel I
made to itshus),s'ilmisted tacA actmetim stenal omrridesthetestonde l
by retuming the diesel generater ta stan 6y eperetten and autveet-l tcally enerytaes the l
eastyency leads with effstle peuer.
- 30. At least once per 10 years, or after apur sedifica-tiens thich emuld effect diesel generstar later-depealence, verify that all thras diesel generators -
start stmitaneously 6 ring shuldmei, and accelerate ta sposteuneus speed in 1!!seemds.-
9ensentary variettens outside this hard shal) set invalidata the test.
"For the 18 dieul generater, a single 344eur 1ead test owry 30 sentna wil) settsfy the reestruer.ts of tantt 1 Specification 4.9.A.R.a.6 and thtt i Specificatten 4.8.1.1.t.d.9.
- TDI - tkn 1 3.kab Amerdnent No.178__ _, _ _ _,
c.
LIMITING CONDITIONS FOR OPERATION SURVEILLANCE REQUltEMENTS 3.g.A.3.
' 25/250 Volt De rmereenew power 4.g.A.3.
25/250 Volt De r==ruencu power nystem (P ant hatteries 1A and hystem (Plant tatter < en ' A and -
d).
3).
80th 125/250 volt plant batteries a.
Weekly surveillance (IA and IB) shall be operable and Every week the specific gravity shall have an operable battery and the voltage of the pilot cell charger and ventilation system and everall battery voltage shall available for each.
be measured and recorded. Each 125 volt battery shall have a minimum of 105 volts at the bat-tery terminals to be considered operable.
j b.
Monthiv Surveillance tvery month measurements shall be made of voltage of each cell to 1
the nearest 0.1 volt and the spe-cific gravity of each cell. These measurements shall be recorded.
Liquid level shall be checked l
visually.
- 4. - ggfueline Outane surveil' ante During each scheduled rei veling outage, the batteries shall be subjected to a rated load dis-charge test. -The specific gravity and voltage 9f each cell shall be determined af ter the discharge and recorded.
4.
Emercenev 4160 Volt Ruses (1E.
4.
{inereeney 4160 Volt Runes (1E.
i 1F. and 1G) 1F. and ' A)
- i, The emergen.:y 4160 volt buses (IE, The emergency 4160 volt buses (IE, 1F, and 16) shall be energized and 1F, and 14) shall be monitored to operable.
the extent that they are shown to 5,
4 c.vM voe.r&d. E/rWc/d(,y /*4/s45 be ready and capable of trans-5; h bk'ht.r NE)" N $d&Y $s/sa5
- Emereenev 600 Volt buses (1C
+ feareenev 600 Volt Buses fic and 10) da -and 10)
'/4gt'r The emergency 600 volt buses (1C INrt4 T-The emergency 600 volt bu:es (IC 3,9. g. f. 3 3.9. A I C j
- and 10) shall be energized and
'/.4. 4.E /s e and 10) shall be monitored to the operable.
e/,9. 4, 9, c -
extent that they are shown to be ggy r M j,ga gevr ready and capable of transmitting.
V the emergency lead.
- w 6.
Emereenev 250 Volt Dc to 600 Volt 6.
Emereenew250VoltDCto600 Volt l
Ac inverters AC Inverters The emergency 230 voit DC to 600 a.
The emergency 250 volt DC/600 i
voit AC inverters shall bd ener-volt AC inverters shall be moni-gized and operable.
_ tered to the extent that they are 1
- shown to be ready and capable of transmitting the emergency load.;
L NATCM;- UNIT 11 3.3-3
. Amendment No. M, 48'
.. ~
. ~
'J. ? A v
C
!#dE4 J Volt Essential Cabinets (IA'and 18)
The 120/208 volt essential cabinets (IA and-18) shall be energized and operable.
(3.9.A.S.c) c.
119/298 Volt Instrument Buses (IA and IB)
The120/208 volt instrum.ent buses (IA and IB) shall:be energized and operable with their crosstie breakers open.
(4.9.A.S.b) b.
120/208 Volt Essential Cabinets flA and 1B) to the extent that they are:shown tovolt: essential cabinets (be ready and-cap The 120/208 transmitting the emergency load.;
~
(4.9.A.S.r)-
c.
120/298 Volt Inst'rument Buses fl A and 18)
The 120/208 volt ~ instrument bbses:(IA and 18)'sha11Lbe monitored 4 to the-extent-that they areishown to be readyLand-capable of-transmitting the emergency load. At'least once_ per seven-(7) days L the instrument bus crosstie breaksrsishall be verified'to be open.:
?
N
P LIMITING CONDITIONS FOR OPERATIDN SURVEILLANCE REOUIREMENT5 3.9.B.1.
One startuo Aurillary Transformer 4.9.3.1.
One Startvo Auxiliary Transformer f1C or 10) Inoperable or Only One (1C or 10) Inoperable or Only One Offsite Power source Available Offsite Power Source Available~
(230 kV Transmission line).
1230 kV Transmission Line)
Reactor operation is permissible When it is established that one for seven days from the date thet startup auxiliary transforiner
(_t one startup auxiliary transformer (IC or 10 coming pow)er is available fromis inop (1C or 10) is inoperable or in-(
coming power is available from only one 230 kV offsite trans-only one 230 kV of f site trans-mission line provided the in-mission line, verify correct breaker alignments and indica-creased Surveillance Require-ted power availability within ments as stated in Specification one hour and at least once per 4.9.8.1. are implemented.
(
eight hours thereafter, and L
perform Surveillance Require-ment / 4.". A.2.s within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.
i k 1. 4,a.n, )
2.
One Die el Generator (IA. 18.
2.
One Diesel Generator f1 A.18.
er IC) noperable_
gy 1C) noperable From and after the date that one of the diesel generators is made When it is established that one or found to be inoperable, continued diesel generator (IA 18, or 1C) is inoperable, verify correct reactor operation is peris. sible in breaker alignments and indicated accordance with Specification 3.5.G.
power availability within one hour for a period not to exceed seven dass provided that two 230 kV of f-and at least once per eight hours thereaf ter, and perfona Surveill-site transmission lines are avail-ante Requirement t.".A... tvithin
(-
able, both remaining diesel gen-24 hours,andeveryft2 hours erators and associated emergency thereafter.
buses are operable, and the in-Y4.h.M.[
creased Surveillance Requirements as stated in Specification 4.9.8.2.
are implemented.
3.
9,no125/250 Voll DC PowJ r System 3.
Qnf_.U5/250 Volt DC Power System (P' ant Batterv 5A or 18) Inoper-(P' ant Battery 1A or IB) Inocer-D Lt thh From and af ter the date that one When it is established that one of of the two 125/250 volt plant bat-the 125/250 volt DC power cystems teries is made or found to be in-operable, continued reactor oper-(plant battery 1 A or 18) is made atton is permissible during the or found to be inoperable, the
/
succeeding seven (1) days within pilot cell voltage and specific electrical safety considerations, gravity and the overall battery t
voltage of the operable plant bat-
\\
provided repair work is initiated tery shall be tested daily and de-inenediately to return the failed component to an operable state, termined to be satisfactory.
Specification 3.5.G. is satisfied.
i I (
HATCH - UNIT I 3.9-5
. Amendment No. 147
e LIMITING CONDITIONS FOR OPfRATION
$URytlttANtt REQUIRtutNts 3.9.8.3.
One 125/250 Voit DC Power System (Plant Betterv 1 A or 18) Inor.e r-
& (Continued) and the increased Surveillance Requirements as stated in Spect-fication 4.9.8.3. are implemented.
?
4.
Emercenev 416Q_ Volt tuses fit.1F.
or 16) Inocerable One of the emergency 4160 volt buses (It.1F, or 16) may be in-op*~3ble for a period not to exceed seven (7) consecutive days provid-ing the other two emergency 4160 volt buses and associated ECCS i
y e'93 Eft */b'['[')1'MW V @M5 st
- +r Emeroenev 600 Volt Buses f1C or (1
- 10) Inoperable One of the emergency 600 volt buses f / g y g s* r (IC or 1D) may be inoperable for a 31Sd
- period not to exceed seven (7) days providing the other 600 volt bus is 3ft. B. C C fA&"y operskie.
A U f lA M f
/
6.
Emereenev ?$0 Volt DC to 600 Volt AC Inverters One of the emergency 250 volt DC to 600 volt AC inverters may be inoperable for a period not to exceed seven (7) consecutive days providing the other inverter is operable.
C.
E1.tsel Generator Recuirements LReactor in the Shutdown or Ref uel Model*
l Whenever the reactor is in either the Shbtdown or Refuel Mode, a minimum of two diesel generators shall be operable whenever
- This specification is not applicable when fuel is not in the reactor pressure vessel; however, one diesel generator shall be operable and aligned to supply power as follows:
a.
To provide fuel pool cooling capability; and b.
To provide power for one train of SGTS when secondary containment is required.,
HATCH - UNii 1 3.5-6 Amendment No. M. 82
(3.9.D.5.b) b.
120/208 Volt Essential Cabinets (1A and 18)
One of the 120/208 volt essential cabinets (IA or IB) may be inoperable for a period not_to exceed eight (8) hours )roviding the other 120/208 volt essential cabinet is o>erable.
Boti of the 120/208 volt essential cabinets (IA and 13) may be inoperable for a periodnottoexceedtwo(2) hours.
(3.9.B.S.c) c.
120/208 Volt Instrument Buses (1A and 1B)
One of the 120/208 volt instrument buses (lA or 1B)'may be inoperable for a period not to exceed eight (8) hours providing the other 120/208 volt instrument bus is o)erable.
Both of the 120/208 volt instrument buses (IA and IB) may 30 inoperable for a period not to exceed two (2) hours.
_--u_.m__-___m_
---A_-_
.A ac.__
v DA5E5 FOR LI:llTING CONDITIONS FOR OPERATION p.sm ru r% e pvo,e o r (c./54, 3.p.A.
Emergency 6DD Volt Buses (lC and 1D)
The emergency 600 volt buses (1C and 10) shall be supplied from the emer.
gency 4160 volt buses (IE, IF, and IG) and these 600 volt buses shall pro-
/A8d F vide and distribute AC power to the engineered safety feature noters rated
' 3. 9. 4, 5. 6 V at and below 200 horsepower.
y-6.
Emergency 250 Volt DC/600 Volt AC Inverters AM The two (2) emergency (250 volt DC/600 volt AC inverters shal) be supplied from plant batteries IA and IB) and these inverters shall supply 600 volts AC to Engineered Safety Feature valves of the LPCI and Recirculation Systems.
7.
Loote Systems The operability of logic systems provides assurance of proper diesel starting perfomance upon receipt of an accident signal. The operability shall be confirmed by periodic tests. Failure of a logic system requires that reactor operation be terminated within seven (7) days and the reactor be maintained in the Cold Shutdown Condition until the logic systems are proven operable.
B.
_ Requirements for Continued Operation with Inoperable Components 1.
One Startup Aux 111ary Transfomer (It or 10) Inoperable or only one Of fsite Power Source Available (230 kV Transmission Line)
One startup auxiliary transformer and one offsite transmission line can supply suf ficient power to permit functioning of structuros, systems, and cormonents important to safety. The standby diesel as a backup to the preferred offsite power sources. generators will serve 2.
One Diesel Generator (I A.1B. or 1C) Inoperable The failure of any component associated with the diesel generator units shall not jeopardite the capability of the remaining diesel generator units to start and supply the minimum required engineered safety feature loads.
One diesel generator may be allowed out of service based on the availability of power from the startup auxiliary transfomers and the fact that two diesel generators carry sufficient engineered safety feature equipment to cover any postulated design basis accident. A diesel generator shall be considered inoperable if it is incapable of automatically starting and running the required shutdown systems, emergency systems, and engineered safety feature loads.
3.
One 125/250 Volt DC Power System (Plant Battery 1 A or 1B) Inoperable Although loss of one of the two DC sources is highly improbable, loss of one source would not prevent safe shutd;wn of the reactor. Loss of one of the 125/250 voit DC powe' systems does not affect plant safety since redundant loads continue to be supplied by the second system. However, since a single failure cannot be tolerated, continued operation will be pensitted for only seven (7) days unless redundancy is restored.
HATCH - UNIT 1 3.9-9 Amendment No. 48
____m.__.__
BASES
)
(3.9.A.S.b) b.
120/208 Volt Essentjal_ Cabinets (IA and IB)
The 120/208 volt essential cabinets (IA and IB) shall be supplied from the emergency 600 volt buses (10 and ID) and these essential cabinets shall provide and distribute AC power to numerous loads, i
some with engineered safety feature applications.
i (3.9.A.5.c) c.
120/208 Volt Instrument-Buses flA and 18)
The 120/208 volt instrument buses (IA and IB) shall be sup)1ied from the 120/208 volt essential cabinets-(IA and 18) and taese instrunient buses shall provide and distribute AC power to instrumentation and controls, some with engineered safety feature applications, f
l l
l
r RA5ES FDk LINITINE cDNDITIONE FOR DPERATION i
3.g.g.4.
emareenew 4160 Veit tunes fit.1F. er it) Inomerable
}
i Each of the three emergenc 4160 volt emergency buses (It, IF and 16) is preferably supplied from t e auxiliary startup transformers wIth each bus j
normally having a single diesel generator as a standby power supply. The critical emergency se i
eency 4160 volt buses,fety feature leads are divided among the three emer-j and failure of one bus does not prevent a safe shut-down of the reactor. Therefore, operation would be permitted for only i
seven 7) days after which the reacter shall be placed in the Cold Shutdown
)
h fck g**4 tac; gmMGMy fasts
-6v Enereency 600 Velt Runes f1e er 1D) Inesorable 1
et.
l The two emergency 600 volt buses (1C and 10) are normally supplied from separate emergency 4160 volt buses (1E and 16 with 1F as a backup). Failure
- /Nf4ff' of one bus cannet affect its redundant counterpart and less of either bus -
3.cyA ( 6 4 will not prevent operation of the minimum required emergency safety feature i 3 3 J. f. C lea,ds.
' 1 8 #'^ Y 6.
Emereenev 250 valt Dc to 600 volt Ac Inverter Ineserable b f466 /
bW The two emergency 250 volt DC to 600 volt AC inverters are normally supplied-from separate emergency plant batteries (IA and 18). Failure of one inverter cannot af f act its redundant counterpart, and less of either bus will not prevent operetten of the minimum required emergency safety feature leads.
J 5
C.
Diese) Generator tenuirements (Resetor in the Shutdown er Refuel Mode)
This requirement provides added assurance that a staidby power supply istavail-able under certain circumstances even though the reactor may not be critical and, the reactor coolant temperature is less than 212'F.
i
~ D.
RPS MG Sets The LCO will minimise a possible failure in the motor-generator set voltage' regulating circuitry which, if persisting for a sufficient period of time, could potentially result in degradation to tht reacter protection system components with the attendant potential less of capability to scram the plant.
E.
References 1
1.
FSAR, Section 8.4,' Standby AC Power Supply.-
2.
General Design Criterien 17 of Appendix A to 10 CFR 50, 3.
' Proposed IEEE Criteria for Class 1E Electric Systems for Nuclear power Generating Stations' (IEEE Standard No. 308), June, 196g.
Order dated August 7,1978 -
MATCH e UNIT 1
- 3.9-10 Amendment No. 48
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~.,,M,---.w,mw.
.,, - - -..., -, ~..
p i, m.,
m' e v-
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..-.,mm,m.ym_,,,,e,,-,,,..
,-e-+,...
BASES (3.9.B.5.b) b.
120/208 Voll_I;1gntial Cabinets flA and 161 The two 120/208 volt essential cabinets (lA and IB) are normally supplied from separate emergency 600 volt buses (lC and ID).
Failure of one bus cannot affect its redundant counterpart and loss of either bus will not prevent operation of the minimum required emergency safety feature loads.
(3.9.B.S.c) c.
120/208 Volt Instrument Buses flA and 18)
The two 120/208 volt instrument buses (1A and 18) are normally supplied from separate 120/208 volt essential cabinets (IA and IB).
Independence of the two instrument buses is assured by maintaining the crosstie breakers open.
Failure of one bus cannot affect its redundant counterpart and loss of either bus will not prevent i
o)eration of the minimum required emergency safety-feature loads.
Tie two instrument buses are each powered by a different division of Class IE AC power.
Therefore, if the buses are found to be crosstied while both buses are also tied to their normal sources, then both buses must be considered inoperable.
If the buses are crosstied and only one bus is tied to its normal source, then only-the bus which is not tied to its normal source must be considered inoperable.
L 1
T
- T Wqm--
r wr P
e-4p e-T
- v
=&%e P h
s RASE 1 FOR SURVEILLANCE REOultEMENT1 4.g.A.t.o.
Fuel 011 Transfer pasmas Following the monthly test of the diesels, the fuel oil transfer pumps shall be operated to ref t11 the day tank and to check the operation of these pues.
3.
125/250 Velt bc Emereenew power System f plant hatteries la and it) I The plant batteries may deteriorate with time, but precipitous
~
failure is unlikely. The type of surveillance described in this specification is that which has been demonstrated thrsugh experience i
to provide an indication of a cell becoming irregular er inoperable long before it fails.
4.
Emeraenew 4160 Volt tuses fit.1F, and it)
The emergency 4160 volt buses (1E, IF, and 16) are monitored to assure readiness and capability of transmitting power to the emergency load.
These buses distribute AC power to the required engineered safety feature equipment. The normal feeds and backup to the emergency.
buses (IE, IF transformers., and 14) are taken from the startup auxiliary If neither startup auntliary transformer is evenab,e, bniei u, ir, and a win be.norgised fro. the standby -
- g. fa % *i M *& p m.u k p us_
Emersenev 600 volt suses fic and le) 4 9. 4 5~. b c The emergency 600 volt buses (IC and 10) are monitored to assure 9, g g,.;, c readiness and capability of transmitting the emergency 1 pad.
Ff##1 M# 6.
Enereenev 250 Volt Dc to 600 Volt Ac Inverters lA66 The emergency 250 volt DC to 600 volt AC inverters are monitored to assure readiness and capability of transmitting power to the emergency loads.
7 ', Loaie systems The periodic testing of the logic systems will verify the ability of the logic systems to bring the auxOlary electrical systems to running standby readiness with the presence of an accident signal and/or a degraded voltage or LDSP signal.
The periodic testing of the relays which initiate energisation of the emergency buses by the diesel generators when voltage'is 16st on startup transforser 1C will verify operability of these relays.
The periodic simulation of accident signals will confirm the ability of the 600 volt load shedding logic system to sequentially shed and restart 600 voit loads if an accident signal were present ans diesel generator voltage were the only source of electrical power.
O.
RPS ME 1sts The surveillance requirements for the RPS pouer supply eavipment will ensure the timely detection of potential creponent fa11eres that might be caused by a sustained over-voltage or knder-voltage conditions.
E.
References
^
1.
- . Proposed IEEE Criteria for Class 1E Electric systems for Nuclear Power Generating Stations' (IEEE Standard No. 303), June,196g.
2.
American Society for Testing and Materials, ig70 Annual Book of ASTM, EAndaI(1. Part 17.
NATCH - UNIT 1-3.g-12 Amendment 88
f'...
I BASES (4.9.A.S.b) b.
120/208 Volt Essential Cabinets (1A and 181 The 120/208 volt essential cabinets (IA and IB) are monitored to
~
-assure readiness and capability of transmitting the emergency load.--
(4.9.A.5.c)-
c.
120/208 Volt Instrument Buses (IA and 18)
The 120/208 volt instrument-buses (!A and-18) are monitored'to-assure. readiness and capability of transmitting the emergency load.
The periodic verification that_the crosstie breakers-are open assures-the independence of the two buses.
I l
l t
h
=
1 L.-_
7-4 Basts FOR $URytlLLANtt Rt0VIRIMfg s 4.10.
StFUELING A.
Refuelino Interlock 3, Complete functional testing of all refueling interlocks before any refuellt.y cu*fbe will provide positive indication that the interlocks 3
operate in tha situations for which they were designed. By loading
~I each hoist with a weif ? equal to the fuel assrmbly, positioning the refueling platform, ano withdrawing control rods, the interlocks can be subjected to valid operational tests. Where redundancy is provided in the logic circuitry, tests can be performed to assure that each re-dundant logic element can independently perform its functions.
C.
Core Monitgft.11.q,,,0urino Core Alterations Requiring the SRM's to be functionally tested prior to any core alteration assures that the $RM's will be operable at the start of that alteration.
The daily response check of the SRM's ensures their continued operability.
D.
$ Dent Fuel Pool Water tevel A de+4y record of the $ pent Fue1p/ g g g )
n'lun' ool Water Level to determine that the M ~~~ minimum of:t t feet is net e.;;;;;;-is considered sufficient to ensure
'tEt~radlologicalshieldingismaintained.
E.
{ontrol Rod Drive Maintenance Refueling interlocks and core monitoring surveillance are discussed in 4.10. A. and 4.10.C. above. The choice of the strongest (highest reactivity
"\\
worth) red thich will be used for a determination of the relevant shutdown "1
margins is based on prior core calculations supplemented by empirical data obtained from similar cores. Trum similar data ard calculations the reattivity worth of rods adjacent to a withdrawn rod will also be known.
Thus the surveillance shutdown margins can be evaluated in terms of rod position.
F.
Reactor Bu11dino trenes Modifications to the mein reactor building crane ere being studied in order to increase its ability to withstand a single failure. A spent fuel cask will not be lifted until these modifications have been accepted by the Att and the A!C has approved the lif ting of casks by the crane and the appropriate Technical Specifications.
G.
Scent Fuel task Liftino Trunnions and Yoke See note for Bases 4.10.F. above.
1.
Crane Travel-$ Dent Fuel Storace Pogi Refer to Bases 3.10.1.
HATCH - UNIT 1 3.10-10 Annndment No.14 J
I a. '. o ELECTRICAL POWER SYSffMS
$URVE!LLANCE Rf@lRfMENTS (Continued) 4.
Verifying the diesel generator capability to reject a load of at least 2775 kW without tripping. The generator. voltage shall not exceed 4800 volts during and following the load rejection.'
5.
$1mulating a loss of offsite power by itself, and:
a) Verifying de-energlittlon of the emergency busses and load shedding from the emergency bussss.
b) Verifying the diesel ttarts on the auto, start signal.
energtres the emergency busses with permanently connected loads in < 12 setends, enerul;tes the auto-connected shutdown Treds through the 'oad sequencer, operates for 1 5 minutes while its-generator is loaded with the shutdown ';;.,,:.;.,; loads, and athleves and maintains a steady-statt voltsge of 4160 g 420 volts and a steady-state frequency of 60 1 1.2 Nr.
6.
Verifying thtt on an ECCS actuation test signal. Without loss of t,ffsite power, the diesel generator starts on the auto-start signal and operates or. standby for 1 5 minutes.
7.
(deleted) 8.
Simulating a loss of offstte power in conjunction with an ECCS actuation test signal, and a) Verifying de-energiration of the surgency busses and load shedding for the emergency busses.
b) Verifying the diesel starts on the auto-start signal.
l energtres the emergency busses with permanently connected Icadt in i 12 seconds, energizes the auto-connected shutdown-(emergency) loads through the load sequencer, operates for
> 5 minutes while its generator ts loaded.With the emergency Toads, and achieves and maintains a steady-state voltage of 4160 2 420 volts and a steady-state frequency of 60 g 1.2 Hz.
c) Verifying that t)) diesel generator trips 6xcept engine overspeed. low lobe oil pressure, and generator-differential are automatically bypassed upon loss of voltage on the emer actuation signal. gency bus concurrent with an ECCS
" For the 18 diesel generator a single full load rejectic>n test every 18 sonths will sat sfy the requirements of Unit 1 Specification-4.9.A.2,a.1 and Unit 2 Specification 4.8.1.1.2.d.4.
NATCN-UNIT 2 3/4 8-4 Amendment No.__119