Text

Proposed TSs Incorporating Enhancements to Testing Requirements for Emergency DGs
	ML20092B854
Person / Time
Site:	Peach Bottom
Issue date:	01/31/1992
From:	; PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC
To:	;
Shared Package
ML20092B832	List: ML20092B829; ML20092B854;
References
	NUDOCS 9202110158
	Download: ML20092B854 (45)
	v • d • e

-

L ATTACHMENT 3 PEACH BOTTOM ATOMIC POWER: STATION- 4 s

-UNIT 2 Docket No. 50-277 L

License Nos. .DPR .

t l

TECHNICAL SPECIFICATION CHANGE REQUEST No. 88-08 I,

i i Technical Specification 3.9, Auxiliary Electrical System

} " Availability _and Testing of

( Emergency Diesel Generators and Offsite Circuits" e

l

)

't i

7- l

-l

L e-g 1

9202110158 920131

' PDR ADOCK 05000277 P PDR

.. . PBAPS LIMITING CONDITIONS FOR OPERA 110N- SURVEILLANCE REQUIREMENTS 3.9 AUXILIARY ELECTRICAL SYSTEM 4.9 AUXILIARY ELECTRICAL SYSTEM Applicability: Applicability Applies to the auxiliary Applies to the periodic electrical power system. testing-requirements of '

the auxiliary electrical Objective: systems.

To assure an adequate Objective:

supply of electrical power for operation of those Verify the operability systems required for safety, of the auxiliary electrical system.

Specification: Specification:

A. Auxiliary Electrical A. Auxiliary Electrical Equipment Equipment The reactor shall not be made 1. Diesel Generators and critical unless all of the following Offsite Circuits conditions are satisfied:

1. Two physically independent 1. Each of-the required

! circuits between the offsite independent-circuits j transmission network and between the offsite I the onsite Class 1E transmission network and I distribution system are operable. the onsite Class lE l distribution system

2. -The four diesel _ generators shall be shall be:

operable and there shall be a mimimum of 108,000 gallons of diesel _ fuel a. Verified OPERABLE on site. Each operable diesel at least_once per generator shall have: 7 days by verifying correct. breaker

a. A separate day tank alignments and containing a minimum indicated power of 200 gallons of_ fuel, __ availability.

b. A separate fuel storage tank with a minimum of 28,000 gallons of fuel, b._ Demonstrated OPERABLE and at least once per 18 months

c. A separate. fuel transfer _by transferring,

-pump. manually and' automatically, the

3. The unit 4kV emergency buses . start-up source and the 480V emergency .

from_the normal

-load centers are energized. circuit to the alternate circuit.

4. The four unit 125V batteries and their chargers shall be operable.

-217-

Unit-2 PBAPS LIMITING CONDITIONS FOR OPERATION SURVEILLANCE REQUIREMENTS

~

4.9 A.1 (Continued)

2. Each of the required diesel-generators shall be demonstrated OPERABLE:

a. In accordance with the frequency specified in 4.9.A.1.2.k by:

1. Verifying the fuel level in the fuel storage tank, and the volume of fuel-onsite.

2. Verifying the fuel transfer pump starts and transfers fuel from the storage system to the day fuel tank.

^

3. Verifying that the diesel can start aand

gradually accelerate to synchronous speed with generator voltage and frequency at 4160 1 410 volts and 60 1 1.2 HZ.

4. Verifying-that the diesel canbesynchroniged, gradually loaded to anigdicated2400-2600 kw and can operate.with this load for at least 60 minutes.

5. Verifying the diesel generator is aligned to provide standby power to the associated emergency busses.

8 This test shall be conducted in accordance with the manufacturer's recommendations regarding engine pre-lube and warmup and, as applicable, loading and shutdown, b

This load band is. meant as guidance to avoid routine overloading of the. engine.

Loads in excess of this band for special testing, under direct monitoring.by-the manufacturer or system engineer, or momentary variations due to changing. bus loads shall not invalidate-the test, i

i

-218-l !

PBAPS Unit 2 LIMil!NG COND!110NS FOR OPERA 110N SURVEILLANCE REQUIREMENi$

4!9.A.[~f~{ Continued)

6. Verifying the pressure in all diesci generator air start receivers to be greater than or equal to 225 psig.

b. At least once per 184 days the diesel generatgrshallbe started and verified to accelerate to synchronous speed in less than or equal to 10 seconds. The generator voltage and frequency shall reach 4160 4 410 volts and 60 4 1.7 Hz within 10 seconds after the start signal. The generator shall be manually synchronized to its appropriate emergency bcs, loaded to anD indicate: 2400-2600 kw in less 'han or equal to 60 seconds, and operated for at least 60 minutes. This test, if it is performed so it coincides with the testing required by Surveillance Requirement 4.9.A.I.2.a.3 and 4.9.A.l.2.a.4, may also serve to concurrently meet those requirements as well.

aThis test shall be conducted in accordance with the umnuf acturer's recommendations shutdown, regarding engine prelube and warmup and, as applicable, loading and b

1his band is meant as guidance to avoid routine overioading of the engine.

Loads in exce s of this band for special testing, under direct monitoring by the manuf shall notacturer or system invalldcte the engineer, test. or momentary variations due to changing bus loads

-218a-

Unit 2 >

PBAPS t LIMITING CONDji10NS FOR OPERATION SURVEILLANCE REQUIRLMENTS l i

4.9.A.I.2 (Continued) ;

c. By removing accumulated watert ;

i

1. Irom the day tank at ;

least once per 31 days and after each ,

occasion when the diesel is operated i for greater than 1 ;

hour, and

2. from the storage tank at least once per 31 days.

, d. By sampling new fuel oil 4

in accordance with ASTM 04057-81 prior to t addition to the storage '

tanks ands i

1. By verifying in accordance with the tests specified in ASIM D975-81 prior to addition to the storage tanks that ,

the sample has:

a)AnAPIGravityof ,

within 0.3 degrees

~

at 60 degrees f or

-a specific gravity of within 0.0016 at 60/60 degrees F

-when compared to

~the supplier's certificate; or an absolute specific

gravity at 60/60.

degrees f of greater than-or equal to 0.83 but less than or equal to 0.89; or an API-Gravity at 60 degrees F greater than or equal to

~27 degrees but ,

less than or equal to 39 degrees.

-218b-l

Unit 2 PBAPS LIMITING CONDITIONS FOR OPERATION SURVE!LLANCE REQUIR[MENTS

~

4.9.A.1.2.3~1 (Continued) ;

i b) A kinematic viscosity at 40 degrees C of greater than or equal to 1.9 centistokes but l 1ess than or equal '

to 4.1 centistokes, if gravity was not i determined by )

comparison with i the supplier's I certification.

l c) A flash point ,

equal to or_ l greater than 125 degrees f, and .

d) A clear and bright '

appearance with proper color when tested in accordance with ASTM D4176-82.

2. By verifying within l 31 days of obtaining the sample that the other properties specified in Table 1 of ASTM 0975-81 are met when tested in accordance with ASTM 0975-81 except that-the analysis for sulfur may be performed in accordance with ASTM -

01552-79 or-ASTM D2622-82.

. 218c-l S- $

manufacturer's recommendations '

for this class of standby ;

service. >

2. Verifying the diesel generator capability to reject a load of greater than or equal to that of the RHR Pump Motor for each diesel generator while maintaining voltage within

+10% of the initial value and Trequency at 60 1 1.2hz.

3. Verifying the diesel generator ;

capability to reject a load of 2600 kW without tripping. The generator voltage shall not .

-exceed 415%'of the initial value during and following the load rejection. ,

f 1

i

. -218d-

_-_ _ , . _ _ - . _ _ _ . . _ . - - . . . . . . _ . . . . _ _ . - _ . _ . . . . a_..._._ _

l Unit 2 PDAPS LIM 111NG C0HD1110NS FOR OPERA 110N SURVEILLANCE REQu',REMENIS 4.9.A.l.2.f[ Continued)

4. Verifying that all automatic diesel generator trips except engine overspeed, generator differential over-current, generator ground overcurrent and manual cardox initiation are automatically bypassed upon an ECCS actuation signal.

5.Verifyingthedieselgenerator operates for at least 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months . During the first 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months of this test, the diesel

.generatorshallbeloagedtoan indicated 2800-3000 kW and-during the remaining 22 hours2.546296e-4 days 0.00611 hours 3.637566e-5 weeks 8.371e-6 months of this test, the diesel generator-shall-be.loagedtoanindicated 2400-2600 kW

6. Verifying diesel generator capability at full load temperature within 5 minutes after completing-the 24 hour2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months teste by starting and loading the diesel as described in Surveillance Requirement 4.9.A.I.2.bandoperatjngfor greater than 5 minutes .

"This test shall be conducted in accordance with the manufacturer's recommendations regarding engine prelube and warm-up and, as applicable, loading and shutdown, b

This band is meant as guidance to avoid routine overloading of the engine. toads in excess of this bank for special testing, under direct monitoring by the manufacturer or

~

system engineer, or momentary variations due to changing but loads shall not invalidate the test.

cif Surveillance Requirement 4.9. A.l.2.f.6 is not satisf actorily completed, it is not necessary to repeat the preceding 24-hour test. Instead, the diesel generator may be operated at 2400-2600 kW for 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months or until operating temperature has stabilized prior to performing Surveillance Requirement 4.9.A.l.2.f.6.-

d Performance of Surveillance Requirement 4.9.A.l.2.f.6 will not be used to satisfy the requirements of Surveillance Requirement 4.9.A.1.2.b.

-218e-m.m_.--._--.--_

' ~

Unit 2 PDAPS LIM 111NG CONul110NS FOR OPERA 110N SURVE!LLANCE REQUIREMEN15 4.9.A.I.2 (Continued)

7. Verifying that the fuel transfer pump transfers fuel from each fuel storage tank to the day tank of each diesel via the installed cross connection lines, go At least once each operating

-yri, by:

i Si> .cging a loss-of-offsite power b1 itself, and:

a) Verifying deenergiration of the Emergency busses and load shedding from the emergency busses.

b) Verifyingthedigsel ,

generator starts on the auto-start signal, energizes the emergency busses within-10 seconds, energizes the permanent and auto-connected loads through the individual load timers and operates for greater than or equal to 5 minutes.

After energization, the '

steady-state voltage and frequency of the emergency busses shall be maintained at 4160 + 410 volts and 60 4 1.2

~

Hz during this test.

t aThis test shall be conducted in accordance with the manufacturer's recommendations regarding engine prelube and warm-up and, as applicable loading and shutdown.

-218f-l_..__ -

--w... n- ,-- . - - . - .- , ,- --n, , - - - - -- - - ,- . ,,,,,-- - - - ,,, -~.n - - - - - , ,,... ~ - , , ,--,-,,,-,-, --w., r,.-,n a -, , e-

Unit 2 PDAPS t IM111t1G C0t401110NS 10R OPERA 110N SURVEILLA14CE REQUIREMENTS 4.9.'K~1.2 (Continued)

2. Verifying that on an ECCS actuation test signal, without loss-of-offsite power,athe diesel generator starts on the auto-start signal and operates for greater than or equal 5 minutes. The generator voltage and frequency shall reach 4160 4 410 volts and 60

+ 1.2 HZ within 10 seconds after the auto-start signal; the steady state generator voltage and frequency shall be maintained within these limits during this test.

3. Simulating a loss-of-offsite power in conjunction with an ECCS actuation test signal, and:

a) Verifying d7energization of the emergency busses and load shedding from the emergency busses.

b)Verifyingthedigsel generator starts on the auto-start signal, energizes the emergency busses within 10 seconds, energizes the permanent and auto-connected loads through the individual load timers and operates for greater than or equal to 5 minutes.

After energization, the steady-state voltage and frequency of the emergency busses shall be maintained at 4160 + 410 volts and 60

~

+ 1.2 Hz during this test, aThis test shall be conducted in accordance with the manufacturer's recommendations regarding engine prelube and warmup and, as applicable, loading and shutdown.

-2189- !

--.mu.____..

- - . - - - - - - . - - . - - ~ _- .

Unit 2 PBAPS LlHITING C0tJDITIONS FOR OPERA 110N SURVEILLANCE REQUIREMENTS-4.9.A.l.2 (Continued)

4. Verifying the diesel generator's capability tot a) Sychronize with the offsite power source while the generator is loaded with its emergency loads upon a l simulated restoration of offsite power.

b) Transfer _its loads to the offsite power source, and-c)Berestoredtoits standby status,

h. At-least once per 10 years or after any modifications which could affect diesel generator interdepgndenceby starting all four diesel generators simultaneously and

- verifying that all four

' diesel generators accelerate

. to at least 855 rpm in less than or equal to 10 seconds.

1. .At least once per 10 years by draining each fuel oil tank, removing the accumulated

sediment and cleaning-the tank using a sodium hypochlorite or equivalent solution.-

j. The fuel' oil storage tank l-cathodic protection system-shall be checked as folicws:

1. At least once every twelve [

months perform a~ test to determine whether the-cathodic protection is adequate, and-aThis test shall be conducted in accordance with.the manufacturer's recommendations-I regarding engine prelube and warmup and, as applicable, loading and. shutdown.

l 4

-218h- -

Unit 2 i PBAPS LlHITING CON 01110NS FOR OPERATION SURVE!LLANCE REQUIREMENTS l f

4.9.A.l.2(Continued) ;

2. At least once every two months inspect the cathodic i protection rectifiers.

k. If the number of failures dduring i the last 20 valid demands is i less than or equal _to-1, the test ,

frequency shall be at least once i per 31 days.

If the number of failures during the last 20 valid demands is greater than or equal.to 2, the i testfrequencyghallbeatleast once per_7 days . .

1. --All diesel generator failures, i valid or non-valid, shall.be reported to the Commission in a Special Report _within 30 days.

Reports of the diesel generator failures shall include the ,

information recommended in Regulatory Position C.3.b of .

Regulatory Guide 1.108. Revision 1 August 1977. :

d Criteria for determining the number of failures and number of valid demands shall be in accordance with Regulatory Position C.2.e of Regulatory Guide 1.108, but determined on a per diesel generator basis, eihe associated test frequency shall be maintained until seven consecutive failure free demands have been performed and the number of failures in the last 20 demands have been reduced to one. For the purposes of determining the required frequency, the previous test failure count may be reduced to zero if a complete diesel overhaul-to like-new condition is completed. This diesel overhaul, including' appropriate post-maintenance operation and testing, shall be specifically approved by the manufacturer and acceptable diesel reliability must be demonstrated. The reliability criterion shall be the .

successful completion of 14 consecutive tests. Ten of these tests may be slow starts in accordance with Surveillance Requirements 4.9.A.I.2.a.3 and 4.9.A.l.2.a.4 and four tests shall be fast-starts in'accordance with the Surveillance Requirement 4.9.A.I.2.b.- If this criterion is not satisfied during the first series of tests, any alternate criterion _to be used to reset the valid failure count to zero requires NRC approval.

.l l

^

-2181- I

Unit 2 PBAPS LIM 111NG CONDITIONS FOR OPERATION SURVEILLANCE REQUIREMENTS 4.9.A.2 Unit Batterie*.

a. Every week the specific gravity, the voltage and temperature of the pilot cell and overall battery voltage shall be measured-and logged,

b. Every three months the measurements shall be made of voltage of each cell to nearest 0.1 Volt, specific gravity of each cell, and temperature of every fifth cell. These measurements shall be. logged.

c._The station batteries shall be j subjected to a performance test every third refueling !

outage and a service test i during the other refueling outage, in lic'. of the performance test every third i refueling outage, any battery

- that shows " signs of

. degradation or has reathed 85%-

1 of its service life" shall be subjected to an annual performance test. The service :

test need not be performed on '

the refueling outage during which the performance test was conducted. The specific gravity and voltage of each ;

cell shall be determined after the discharge and logged.

4.9.A.3 Swing Buses

=

a. Every two months the swing

-buses supplying power to the i Low Pressure Coolant injection System (LPCIS) valves shall be-tested to' assure that the transfer circuits operate as

~ designed, c

l.. -

-218j- ,

I ,

L..... ,

Unit 2 PDAPS LIMlllNG COND1110NS FOR OPERATION SURVEILLANCE REQUIREMEN15 3.9.B Operation with inoperable Equipment 4.9.B. Operation with Inoperable Equipment Whenever the reactor is in Run Mode or Startup Mode with the reactor not in a Cold Condition, the availability of

. electric power shall be as specified in 3.9.A. except as follows:

1. With one offsite circuit required by ' 1. When it is determined that one-Specification 3.9.A.1 inoperable, offsite circuit required by restore at least two offsite circuits to Specification 3.9.A.1 is OPERABLE status within 7 days or be in inoperable, verify the least HOT SHUTDOWN within the next 12 OPERABILITY of the remaining j hours and in COLD $HUTDOWN within the A.C. sources by performing <

following 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months . Surveillance Requirement 4.9.A.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. l If any of the diesel '

generators have not been successfully tested within ;

the preceding 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months . l demonstrate OPERABILITY of 1 these diesel generators-by performing Surveillcnce Requirement 4.9.A.1.2.a.3 for one diesel at a time within 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months and once per 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months thereafter.

l

2. With two independent off-site circuits 2. None re'utred by Specification 3.9.A.1 .

Inoparable. continued operation is permissible, provided the four diesel

generators and associated emergency busses-are operabic, all core and containment cooling systems are_ operable and reactor power level-is reduced to 25% of the

^

design.

4

+

e j s

-219-9 p,--n.w.,,+ g.w.,u.y.w,,*w- rw-9.w-+-- , --y.,,,ve-- -Em-y,.vy,-,,y', ,w n ,J g. m y g ., , ,w.,, ,o.,,..m-y'-,a

, qw-3.-',ewwn...

, aw-..., w,.v, ,.my, JE., ,---.3,- . - . , . , .

- .. ~ - -- . - - - - - . - - _ . _ . - - . - . . - - - . . - . - - .

Unit 2 PBAPS LIMITING CONDITIONS FOR OPERATION SURVElLLANCE REQUIREMENTS 3.9.B (Continued)

3. With one diesel generator inoperable. 3. When it is determined that restore the inoperable diesel generator one diesel generator is and associated emergency bus to OPERABLE inoperable, verify the status within 7 days or be in at least OPERABILITY of the remaining HOT SHU1DOWN within the next 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months A.C. sources by performing and in COLD SHUTDOWN within the Surveillance Requirement following 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months . 4.9.A.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. Verify within 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months that required systems, subsystems, trains, j components, and devices that depend on_the remaining 1

'l diesel generators as a 4

source of emergency power .

are OPERABLE. I 1

If the diesel generator i became inoperable for any reason other than preplanned l preventative maintenance, or !

testing, demonstrate the OPERABILITY of the remaining i operable diesel generators by performing Surveillance Requirement 4.9A.1.2.a.3 for ,

one diesel at a time, within 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months

and at least once per 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months thereafter.

This test is-required to be completed regardless of when the' inoperable diesel generator _is restored to OPERABILITY for failures that are potentially generic to the remaining diesel generators and for which appropriate alternative testing cannot be designed.

-220-

'r-- wm,-r-,,--y,,,m,m--,,w-vwr,nrx,r,.r,-,, yr,-- - . ,.w r, s.n g,v y + w n 4 ss-~ =ean,---g+= - - , +n+w-- ,---v+ ,n-..,,- -- -,--,,r-e..,-r, .nm+--- - --n,,--ae,,- -'

Unit 3 PBAPS

, tlMITING CONDITIONS FOR OPERATION SURVEILLANCE REQUIREMEN15 3.9.8 (Continued)

4. With one diesel generator and one 4. When it is determined that offsite circuit required by one diesel generator and ;

Specification 3.9 A.1 inoperable, one offsite circuit required r restore at least two offsite by Specification 3.9.A.1 circuits or four diesel are inoperable, verify the '

generators to OPERABLE status OPERABILITY of the remaining within 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months from the time A.C. sources by performing of initial loss or be in at Surveillance Requirement .

least HOT SHUTDOWN within the 4.9.A.l.l.a within 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months next 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months and in COLD SliUTDOWN and once per 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months ;

within the following 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months . thereafter. Verify within 2 t hours, that required' -

systems, subsystems, trains, i components, and devices that !

depend on the remaining !

diesel generators as a source of emergency power are OPERABLE. >

If the diesel generator +

became inoperable for any reason other than preplanned '

preventative maintenance, or testing, demonstrate the OPERABILITY of the remaining diesel generators by performing Surveillance Requirement 4.9.A.1.2.a.3 for one diesel generator at a time, within 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months *.

5. From and after the date that one of the 5. None :

125 volt battery systems is made er found to be inoperable for any reason, continued reactor operation is .*

permissible during the succeeding three days within electrical safety.

considerations, provided repair work is initiated in the most-expeditious manner to return the-failed. component to an operable state, and Specifications 3.5.F '

.and 3.9.B.3 are satisifed.

t OThis test is required to be completed regardless of when the inoperable diesel generator is restored to OPERADILITY for failures that are potential generic to the-remaining diesel generators and for which appropriate alternative testing cannot be designed.

~ ,

-220a- l I

c, .~n.. ,,--.-~-.,-.-.,---.w. .

.-v r,~-.-, - , ~ws ..-,----..i .--,.,-4, r,.,,.,,m.,.-ry c e,~r. ~ ,- -v,.-..-%.v-.r

Unit 2 PDAPS LlHITlHG CONDITIONS FOR OPERATION SURVEILLANCE REQUIREMENTS 3.9.0 (Continued)

6. With fuel oil in one of the dicsci 6. None generator main storage tanks not available or not in conformance with Surveillance Requirement 4.9.A.1.2.e.

impicment the following:

a. Isolate the main storage tank from 4

! the system, with the associated l l

diesel generator being supplied from i one of the remaining storage-tanks j within 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months , and i b. Establish and maintain a minimum of

! 108.000 gallons of diesel fuel oil in the other three main storage tanks within-72 hours, and i

c. Sample the fuel oil in the other ,

three main storage tanks and confirm conformance with specification

} 4.9.A.1.e within 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months , and '

d.- Replace the unacceptabic fuel oil

with acceptable fuel and return the storage tank to service within 7 '

days, or place the reactor in Cold Shutdown within 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months .

t Accelerated testing of the diesel

generators is not required.

7. With one of the 4kV emergency busses 7. None or 480V emergency load centers '

required by 3.9.A.3 not energized, declare the associated equipment inoperabic and take the appropriate

action for that system.

Reenergize the bus within 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months or be in COLD SHUTOOWN within the following 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months .

f .

t I

k 2206-4

., ,. _ .e - ,, - . , - , . ---m.w__ ..

-m..v-,_y-----.co.--.-w-,,,,. ,,,,,.---r- -*-vw---,-e-- -----~r--,-y-+----c +'

Unit ?

PBAPS 3.9 BASES The general objective of this Specification is to assure an adequate source of electrical power to operate the auxiliaries during plant operation, to operate facilities to cool and lubricate the plant during shutdown, and to operate the engineered safeguards following the accident. Two independent !

power sources f rom the of f-site transmission network and the diesel generators are available. One off-site source is provided through the 13.2 kV startup regulating transformer switchgear No. 3 supplied from either the No. 343 startup transformer or the startup and emergency auxiliary regulating transformer No. 3. The other off-site source is provided through the 13.2 kV startup transformer switchgear No. 2 supplied from the '

startup and emergency auxiliary transformer No. 2. The two off-site sources are connected to the on-site Class IE distribution system (which begins with the 4kV emergency buses) by physically independent circuits.

The dc supply is required for-switchgear and engineered safety feature systems. Specification 3.9.A states the required availability of oc and dc power; 1.e., active off-site ac sources and the required amount of on-site ac and dc sources. The requirement for a minimum onsite inventory of diesel fuel is based upon an analysis of the time dependent electrical l loads on the diesels following an accident. A battery charger is supplied with each of the 125-Volt batteries.

The No. P, No. 3 and No. 343 startup transformers and unit auxiliary transformers are each sired to carry 100% of the auxiliary load. If one of the off-site power circuits becomes inoperable, the unit can continue to

operate since the unit auxiliary transformer is in service, the other off-site power circuit is available, and the required number of diesel generators is operational.

if both off-site power circults are inoperable the reactor power level must be reduced to a value whereby the units can safely reject the load and continue to supply auxiliary electric power to the station, in the normal mode of operation, the No. 2 startup transformer and either the No. 3 or No. 343 startup transformer are energized _and four diesel generators are operable. One diesel generator may be allowed out-of- '

service based on the availability of power from the startup transformer and the f act that three diesel generators carry sufficient engineered safeguards equipment to cover all breaks. With one off-site power circuit and one diesel generator out-of-service, the off-site transmission line corresponding to-the operable off-site power circuit must be available.

Upon the loss of one on-site and one off-site power source. power would be available from the other immediate off-site power source and the three operable on-site diesels to carry sufficient engineered safeguards equipment cover all breaks. In addition to these two power sources,

-removal of .ae Isolated Phase Bus " quick" disconnect: links would allow :

backfeed of power through the main transformer to the unit auxiliary transformer and provide power to carry-the full station auxiliary load.

The time required to perform this operation is comparable to the time the reactor could remain.on RCIC operation before controlled depressurization need be initiated.

-222-L s

. - , . .. ,, , - . - , . , , , , ~ . . . , . , . . - , - - - . - - . . , , _ - i .;. -

Unit 2 t PBAPS 3.9 DASES (Cont'd.) 3 The 125-Volt battery system shall have a minimum of 105 Volts at the battery ;

terminals to be considered operable. The 250-Volt portion of the 125/250-volt i battery system shall have a minimum of 210 Volts at the battery terminals to bc :

considered operable, i r

The AC110N requirements specified for the degradation of the power sources provide .

restrictions 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.

When a diesel generator is inoperable, there is an ACTION requirement to verify that all required systems, subsystems, trains, components and devices, that depend on the remaining OPERABLE diesel generators as a source of emergency power, are also OPERADLE. This requirement is intended to provide assurance that a loss-of-offsite power event will not result in a complete loss of safety function of critical systems during the period one of the diesel generators is inoacrable.

The term verify as used in this context means to administrative 1y chece by examining logs or other information to determine if certain components are out-of- '

service for maintenance or other reasons. It does not mean to perform the surveillance requirements needed to demonstrate the OPERABILITY of the component, ,

Demonstrations of diesel generator operability required by Section 4.9.8 may :

include paralleling with the offsite source and operating the diesel generator under load.

A standby heating system is used to maintain engine jacket cooling water and ,

engine lube oil temperature at optimum standby starting conditions. An EDG will be declared inoperable if the required temperatures cannot be' maintained. The EDGs will not be operated for the sole purpose of maintaining engine temperatures.

Following an EDG failure, the redundant EDG will be inspected prior to a test :

start to detect any external conditions that indicate starting the EDG might cause similar degradation or damage. ,

The ESWS has two 100 percent cooling capacity pumps, each powered from a' separate >

standby power supply. A third pump equivalent to the two ESW pumps, the Emergency Cooling Water pump, is located at the Emergency Cooling Tower. This latter pump ,

requires the operability of one of the two ESW booster pumps and two of the three Emergency Cooling Tower fans to function adequately. In the event the 2 pumps are inoperable, the allowabic repair period is conservative in view of the 3-month test interval for the system.

4.9 Bases j The surveillance requirements for demonstrating the OPERABIL11Y' of the diesel generators follow the recommendations of Regulatory Guide 1.9, " Selection of Diesel Generator Set Capacity for Standby Power Supplies," March 10, 1971 Regulatory Guide 1.137 " fuel-011 Systems for Standby Diese1' Generators," Revision 1, October 1979 and Regulatory Guide 1.108, " Periodic. Testing of Diesel Generator Units used as Onsite Electric Power Systems at Nuclear Power Plants," Revision 1 August 1977 except for paragraphs C,2.A(3),' C.2.C(l), C.2.C(2), C.2.0(2), C.2.D(3) and C.2.0(4). The exceptions to Regulatory Guide 1.108 allow for gradual loading I of diesel generators during testing and decreased surveillance test frequencies (in response to Generic Letter 84-15). Test procedures minimize the period of time that a diesel generator would not be capable of providing emergency power and contain direction for the prompt restoration of the diesel, if necessary, during testing.

-223-

tlnit 3 PDAPS 4.9 BASES (cont'd)

The diesel generator voltage may decrease to 59% of nominal when the 2000 HP RHR pump motor is started. The load rejection test of the largest single load will be conducted with the EDG governor in isochronous mode using the Residual Heat Removal Pump in full flow test as the rejected load.

The term permanent and auto-connected loads means those loads which the diesel I would normally be expected to supply in the scenario being tested. Verification i of load shedding from the emergency busses will include only those normally powered from the emergency bus during plant operations. The loads described by the term emergency loads are a Residual Heat Removal Pump, a High Pressure Service Water Pump and the 480 Volt emergency bus load center.

The diesel fuel oil quality must be checked to ensure proper operation of the diesel generators. Water content should be minimized because water in the fuel could contribute to excessive damage to the diesel engine. Amendment No. 131 centralized commitments related to Position C.2 of Regulatory Guide 1.137, i Revision 1 (October, 1979) " fuel Oil Systems for Standby Diesel Generators". I Although station batteries will deteriorate with time, utility experience ;

indicates there is almost no possibility of precipitous failure. The type of surveillance described in this specification is that which has been demonstrated over the years to provide an indication of a cell becoming irregular or unserviceable long before it becomes a failure. In addition, the checks described also provide adequate indication that the batteries have the specified ampere hour capability.

The station batteries shall be subjected to a performance test every third refueling outage and a service test during the other refueling outages. This testing frequency complies with the testing requirements of the Institute of Electrical and Electronics Engineers (IEEE) Standard 450(1976)," Recommended Practice for Maintenance, Testing and Replacement of Large lead Storage ,

Batteries," and Regulatory Guide 1.129. Revision 1 (February 1978), " Maintenance.

Testing and Replacement of large lead Storage Batteries for Nuclear Power ;

Plants." ,

A performance test determines the ability of the battery 'o meet a specified discharge rate and duration based on the manufacturer's rating. A service test proves the capability of the battery to deliver the_ design requirements of the dc systems; i.e., supply and maintain in operable status all of the actual emergency loads for the design basis accident. A performance test is the most severe test because the cycling on the battery at manufacturer's rating shortens the service life of the battery. A service test is performed at design load instead of i manufacturer's ratings.

The test interval for the Emergency Service Water System, the ESW booster pumps.

Emergency Cooling Water pump, Emergency Cooling Tower fans, and pump room fans associated with the ESW pumps is deemed adequate to provide assurance that the equipment will be operable based on good engineering judgement and system redundancy, plus the additional testing accomplished when the diesel generators .

are tested. Pump operability tests during normal operation will be performed by measuring the shut-off head.

-224-

[!i! F i lI , [! !I[![i! ;il[t[j;! j,!iij! l;!i[ : ,! ji s w a g s o r e hI n . a g L p t gCiS p n S .

i r e

r wiPnD wy fi )

f ) _

s e oHLnA ob olIk o ek .

f w o o w L u l e oCc crc .

f o p p f

o y hl n

,drs e hl u

,r nnoP o ooCLl nnnoo ooiCl e e teapt ma tes . ii ( r iil( r f sl iv i vsS e tto e o t i

t i

sn oo weeui LrPt weed l rA ttmnt aa umoon aaont umcon s s s l BD n orsynu i n p trCii t r i i s f f r &L or f ci t ciet o f f - e AC i esai i el o af eag af rag l

y- o o w tt er , ttl nrrn norn

- - so ss carp caen Souei SoCei -

sl sese rp e

pp m- nWPSk c

nwwo Dcspn son Dc pn p n pl pl u u yi A A gr eon D s mombmb u

me uu jrl eo jrrt ge u u -

N A

k r p r uaua pl pl it ti pp nol rl oteor noda ot i snrmr ripe snumr rise a e i i s II ccwCe ccht ed tp edst p _

E m l wCaDa lf CC ay t a gi feeoyu nwsm feeryu nesm -

R O

e l o&v&v lf PP LL nerrn nein R A pA a B a Ao IRDoi I rhi D pL s P D pP s P C

E .

H T -

o -

S L a ur rP n OM RE t

ssi g

TT nl s NS I ee OY nD s s .

CS f n l l oay s s s s ss s s e e .

2 RG B. O IN hb r r e

r r e

rr ee r r n n rC e a e e n n .

t i 2.S t e bt e d

i m i m =' m mm m m a a i i i i i i h h n 3E0 mnd t t t t tt t t c c U T0 uei EAC N mv 4 2 2 4 44 2 4 4 4 LI BTT -

AIN TNE IM N .

TI g g AA n n gg HT TN i

t i

t nn ii O t t tt NC e e tt O g~ s s ee I n ss T i f f A t o o ff 0 g S

T N

t e %

oo 2 g i

% . 1 i s P E S 7 7 c %% = 0 s p A M - - e 77 / 1 p B U l . / / s - - = 0 P R e c + + // / 0 1 T

S e v

s e

5 ++ t

= s s 1

N L c c 0 .. /d te - /

I - e e - cc 3n =t / +

i p /

+

s s /

+

ee ss o

c

/u n + -

5 r 3 3 0e i 0' 8 T 6 1 2 3 28 9s 8m 5 1

) e er p

r e

s p

r r

u u -

m tm e ps rs m' yi ru m ms ms o

n u cT aP n i ue ue P n t o T P r P r i r er Sr i P P t

c y

a e ge po u t s ) y m rt a s I ek aei :

n r i en mF u a Cgc rgc F

u S'

p T me

, EC P u( t c

p y Pro oro Lal Sal t' r Ar B (h r h r p e r Vd I e e ce ece

.i r a 0a' Cm Sm S Rst r st .

r o t' 8o Pi Di D Hin oin .

T C 5 4L LT A T_ A RDI CDI .

) ) .

1 7

( (

r

. e tm s ol tF e u Nbn t rb aess mrmly e

pV ueueS k mprn 2 14 2 1 2 2 2 iOt np .

n sai if nne MoiCl j l: i! 4 ,j ji i j1j{j)if {[i ji {]

- . _ . _ _ _ . _ - . . _ . _ . _ _ _ _ - _ _ . _ - _ . . . _ _ _ . . _ - . ~ _ _ _ _ . _ _ _ _

Unit ?

PDAPS la01ES FOR 1ADIE 3.2.0

1. Whenever any CSCS subsystem is required by Section 3.5 to be operable, there shall be two operabic trip systems. If the first column cannot be met for one of the trip systems, that trip system shall be placed in the tripped condition or the reactor shall be placed in the Cold Shutdown Condition within 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months .

2. Close isolation valves in RCIC subsystem. .

3. Close isolation valves in'llPCI subsystem,

4. Instrument set point corresponds to 378 inches above vessel rero.

{

5. HPCI has only one trip system for these_ sensors.

6. With the number of OPERABLE channels less than required by the Min! mum OPERABLE Channels per Trip System requirement, place at least one inoperable channel in the tripped condition within one hour or declare the RCIC system inoperable.

7. The f ailure of a 480V Emergency Load Center- timer could result in the f ailure of a 480V tmergency load Center to re-energize following the loss of one or both offsite sources. Therefore. Technical Specification 3.9.0.7 will apply when a 480V tmergency L.oad Center timer is not operable.

?

1

~72-l l

._, , _ _ _ _ . . _ _ _ . . . - . _ . _ - . . _ __._.__~~

Unit 2 PBAPS LIMITING COND1110NS FOR OP[ RATION SURVElltANCE REQUIREMENTS 3.6 f Minimum low Pressure Cooling 4.5.F Minimum low Pressure Availabifity Cooling GailabiTity

1. Deleted 1. Deleted

2. Any combination of inoperable components in the core and containment cooling systems shall not defeat the capability of the remaining operable components to fulfill the cooling functions.

3. When irradiated fuel is in the reactor vessel and the reactor is in the Cold Shutdown Condition, both core spray systems. the LPCl and containment cooling systems may be inoperabic, provided no work is being done which has-the potential for draining the reactor vessel.

4 During a refueling outage, fuel and LPRM removal and

-replacement may be performed l provided at least one of the following conditions below is satisfied:

a. Both core spray systems and the LPCI system shall be operable except that one core spray system or the LPCI system may be inoperable for a period of thirty days, or

b. The reactor vessel head is removed, the cavity is flooded, the spent fuel pool gates are removed, and the water level is' maintained at least 21 feet over the top of irradiated fuel assemblies seated in the spent fuel. storage pool-racks and no work is being performed which has the potential for draining the reactor vessel.

. -132-l

I ATTACHNENT 4 [

, PEACH BOTTON ATONIC POWER STATION i t

UNIT 3 l

+

F Docket No. 50-278 l h

License No.. DPR-56 i k

TECHNICAL SPECIFICATION CHANGE REQUEST- i No. 88-08 1

-i Technical Specification 3.9, Auxiliary Electrical System

" Availability and Testing of ,

Emergency Diesel Generators and Offsite Circuits" !

l p

t

..U .. ...,-y.- ,,w,ev,,,. , , , .w ,-4., ,.-.d,4 , ., , ,,w, ,',97_,.,_,,_, ppm ..--, 3.* y er r- N '"'7"-

Unit 3 .

p0ApS !

L]M111NG COND1110NS FOR OPERATION $URVElLLANCE REQUIREMENTS !

3.9 AUXILIARY ELECTRICAL SYSTEM 4.9 AUX 1LIARY ELEC1RICAL SYSTEM i hpplicability: Ap,1tlicability Applies to the auxiliary Applies to the periodic j electrical power system. testing requirements of i the auxiliary electrical Olj b d e; systems, lo assu.e an adequate Objective:

supply of electricci power for operation of thow Verify the operability systems required for safety. of the auxiliary ,

electrical system. t i

}pecificatlon: Specification: ;

A. Auxillary lllctrical A. Auxiliary _ Electrical !

Minmgr3t Equipment .

1he reactor shall not be made 1. Diesel Generators and critical unless all of the following Offsite Circuits :

conditions are satisfied:

i

1. Two physically independent- - 1. Each of the required ;

circuits between the offsite independent circuits i transmission network and between the offsite ,

the onsite Class lE transmission network and distribution system are operabic, the onsite Class lE distribution system

2. The four diesel generators shall be shall be: ,

operabic and there shall be a mimimum 3 of 108,000 gallons of diesel fuel a. Verified OpCRABLE ;

on site. Each operable diesel at least once per generator shall have: 7 days by verifying correct breaker !

a. A separate day tank alignments and containing a minimum indicated power of 200 gallons of fuel, availability,

b. A separate fuel storage tank with a minimum of '

28,000 gallons of fuel, b. Demonstrated OPERABlt and at least once per 18 months

c. A separate fuel transfer by transferring, pump. -manually and automatically, the-

3. 1he unit 4kV emergency buses : start-up source and the 480V emergency

' from the normal :

load centers are energized. circuit to the '

alternate circuit.

4. The four unit.125V batteries i und their chargers shall be operabic. 1 l

l- ~217- l v-w4' -,- y --a,-

y qse- -.,5 N- a'w4-*v9q'-i--*W*WW--4' gveWy m-v--u- - *

yin- f L 'tS wy

PBAPS l.lMITING CONDl110N5 TOR OPERATION $URV[lLLANC[ REQUIR[HENi$

4.9.A.l'(Continued)

2. Each of the required diesel generators shall be demonstrated OPERABLE:

i

a. In accordance with the '

frequency specified in l 4.9.A.I.2.k by: l

1. Verifying the fuc1 level .

in the fuel storage tank, and-the volume of fuel '

onsite.

2. Verifying the fuel transfer pump starts and transfers fuel from the storage system to the day

, fuel tank.

3. Verifyingathat the diesel can start and !

gradually accelerate to I 4

synchronous speed with '

generator voltage and I f requency at 4160 4 410 volts and 60 1 1.2~l17.

4. Verifying that the diesel '

canbesynchroniged, gradually loaded to anigdicated2400 2600 kw and can operate with this load for '

at least 60 minutes. ,

5. Verifying the diesel generator is aligned to provide standby power to the associated emergency busses. 1 aThis test shall be conducted in accordance with the manufacturer's recommendations regarding engine pre-lube and warmup and, as applicable, loading and shutdown, b

This load. band is meant as guidance to avoid routine overloading-of the engine. !

Loads in excess of this band for special testing, under direct monitoring by the- .

o manufacturer or system engineer, or momentary variations due'to changing-bus loads shall L not invalidate the test.

1

-218-

- . _ _ _ . _ . . _ _ _ . u. . ._ .. ..._ _ _. . .._ .. . . _ _ _ . _ _

Unit 3 PDAPS LIM 111NG C0t4D1110t45 FOR OPERATION SURVEILLANCC REQUIREMENTS ,

4.9.A.I.2 (Continued)

6. Verifying the !

pressure in all ,

diesel generator air l start receivers to be greater than or equal to 225 psig. l

b. At least once per 184 I days the diesel generatgrshallbe l started and verifled to accelerate to s,'.inchronous speed in less than or equal to 10 ser'snd s . The generator valtage and frequency shall reach 4160 + 410 volts and 60 4 1.2 Hr with;n 10 seciinds af ter l the start signal. The !

generator shall be manually synchronized to its appropriate .

5 cmergency bus, loaded to anD indicated 2400-2600

. kw in less than or equal to 60 seconds, and operated for at least 60 minutes. This test, if

.it is performed so it-coincides with the

! testing required by Surveillance Requirement 4.9.A.l.2.a.3 and 4.9.A.1.2.a.4, may also serve to concurrently meet those requirements as well.

i i

aThis test shall be conducted in accordance with the manufacturer's-recommendations regarding engine prelube and warmup and, as applicable, loading and shutdown. '

b This band is meant as guidance to avoid routine overloading of the engine.

Loads in excess of this band for special testing, under direct monitoring by the manufacturer or system engineer, or momentary variations due to changing bus 10aus shall not invalidate the test. !

L !

-218a-

- - . - - .. . ._.-._ -_~ --.-- ._ - - . - _ - . - - - . .. - - .- . . _ . - -

Unit 3 ;

PDAPS LIMlilNG COND1110NS FOR OPERATION SURVElLLANCC REQUIR[ MEN 15 !

i 4.9.A.I.2 (Continued) l

c. By removing accumulated ,

waters ;

i l

1. from the day tank at i least once per 31

days and after each i occasion when the diesel is operated }

for greater than 1 ;

hour, and ;

2. from the storage tant i

, at least once per 31 '

days. 1

. t 4 d. By sampling new fuel oil- ;

in accordance with ASTM 04057-81 prior,to addition to the storage ;

tanks and: >

1. By verifying in ;

~accordance with-the i

, tests specified in ,

ASTM D975-81 prior to

, addition to the storage tanks that. .

, the sample has: I a) An API Gravity of i within 0.3 degrees

.at 60 degrees F or !

a specific gravity of within 0.0016 at 60/60 degrees f when compared to ,

the supplier's ;

certificate; or an absolute specific-gravity at 60/60 degrees F of- 1 greater than or equal to 0.83 but less than or equal to 0.89: Lor an API Gravity-at 60 degrees f greater. <

than or equal to

. 27 degrees but less than or-equal to 39 degrees.

l

-218b- i i 4-*, , , - --.i ,- p y.--,% , -.. __-, . .

.%.. .ws,w~., . , . , . .mm ...-.+m.- y r. - - , - ~ ~ . > .

tinit 3

' PBApS LIMITING COND1110NS FOR OPERA 110N SURVEILLANCE REQulREMENTS

~~ ~

4.9.A.1.2.d.1 (Continued) b) A kinematic viscosity at 40 degrees C of greater than or i equal to 1.9 l centistokes but '

. less than or equal to 4.1 i centistokes, if I gravity was not I determined by comparison with the supplier's certification, c) A flash point equal to or i greater than 125 j degrees f, and ;

i d) A clear and bright '

appearance with ,

proper color when '

, tested in

, accordance with

l ASTM 04176-82.

2. By verifying within l

31 days of obtaining the sample that the other properties specified in Table 1

'. of ASTM 0975-81 are 4

' met when tested in accordance with ASTM 0975-81 except that the analysis-for sulfur may be performed in accordance with ASTM

'01552-79 or ASTM D2622-82.

P

-218c-

Unit 3 PBAPS W H111NG COND1110 45 FOR OPERATION SURVfitLANCL REQUIRfMENTS

~

4.9.A.I.2~{ Continued)

e. At least once every 31 days by obtaining a sample of fuel oil from the storage tank in accordance with ASTM D?276-78, and verifying that total particulate contamination is less than 10mg/ liter when checked in accordance with ASTM D2276-78, Method A except that the filters specified in ASTM D2276-78, Sections 5.1.6 and 5.1.7, may have a nominal pore size of up tc, three(3) microns,

f. At least once per 18 months by:

1. Subjecting the diesel to an inspection in accordance with procedures prepared in conjunction with its manufacturer's recommendations for this class of standby service.

2. Verifying the diesel generator capability to reject a load of greater than or equal to that of the RHR Pump Hotor for each diesel generator while maintaining voltage within-

+10% of the initial value and frequency at 60 + 1.2hz.

3. Verifying the diesel-generator capability to reject a load of 2600 kW without tripping. The generator voltage shall not exceed 415% of the initial value during and following the load rejection.

-218d-l

Unit 3 PDAPS LIMillHG COND1110NS FOR OPERA 110t1 SURV(ILLANCE REQUIREMENTS

^ ~

4.9X3.2.f7 Continued)

4. Verifying that all automatic diesel generator trips except engine overspeed, generator differential over current, generator ground overcurrent and manual cardox initiation are automatically bypassed upon an ECCS actuation signal.

5. Verifyina the diesel generator operatesa for at least 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months . During the first 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months of this test, the diesel generatorshallbeloagedtoan indicated 2800-3000 kW and during the remaining 22 hours2.546296e-4 days 0.00611 hours 3.637566e-5 weeks 8.371e-6 months of this test, the diesel generator shall be loa 2400-2600 kW[ledtoanindicated

6. Verifying diesel generator capability at full load temperature within 5 minutes aftepcompletingthe24 hour test by starting and loading the diesel as described in lurveillance Requirement 4.9.A.1.2.bandoperatjngfor greater than 5 minutes .

alhis test shall be conducted in accordance with the manufacturer's recommendations regarding engine prelube and warm-up and, as applicable, loading and shutdown, b

1his band is meant as guidance to avoid routine overleading of the engine. Loads in excess of this bank for special testing, under direct monitoring by the manufacturer or system engineer, or momentary variations due to changing bus loads shall not invalidate the test.

cif Surveillance Requirement 4.9.A.l.2.f.6 is not satisfactorily completed, it is not necessary to repeat the preceding 24-hour test. Instead, the diesel generator may be operated at 2400-2600 kW for 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months or untti operating temperature has stabilized prior to i performing Surveillance Requirement 4.9.A.I.2.f.6.

d Performance of Surveillance Requirement 4.9.A.1.2.f.6 will not be used to satisfy the requirements of-Surveillance Requirement 4.9.A.1.2.b.

l l

-218e-l l

_ _ _ _ ._- ~ _ _ , _ _ . _ . _ . _ _ _ _ . _ . . _ . _ . . , -

Unit 3

PBAPS LIMITING CONDITIONS FOR OPERATION SURVEILLANCE REQUIREMENTS 4.9.A.l.2 (Continued)

7. Verifying that the fuel transfer pump transfers fuel from each fuel storage tank to the day tank of each diesel via the installed cross connection lines,

g. At least once each operating cycle by:

1. Simulating a loss-of-offsite power by itself, and:

a) Verifyinq deenergization of the emergency busses and load shedding from the emergency busses, b) Verifyingthedigsel generator starts on the auto-start signal, energizes the-emergency busses within 10 seconds, energizes the !

permanent and auto-connected

-loads through the individual load timers and operates for greater than or equal to 5 minutes.

After energization, the steady-state voltage-and frequency of the emergency busses shall be maintained at 4160 + 410 volts and 60 + 1.2

~

Hz during this test.

aThis test shall be conducted in accordance with the manuf acturer's recommendations regarding engine prelube and warm-up and, as applicable. loading and shutdown.

-218f-l

Unit 3

, PBAPS l

LIMITlHG C0tiDIT10NS FOR OPERATION SU M ILLANCE REQt G .J4TS

~

4.9. A.l.2 (Continued)

2. Verifying that on an ECCS actuation test signal, without loss-of-offsite power,athe diesel generator starts on the auto-start signal _and operates for greater than or equal 5 minutes. The generator voltage and frequency shall reach 4160 4 410 volts and 60

+ 1.2 Hz wiIhin 10 seconds af ter the auto-start signal; the steady state generator-voltage and frequency shall be maintained within these limits during this test.

3. Simulating a loss-of-offsite power in conjunction with an ECCS actuation test signal, and:-

a) Verifying deenergization.

of the emergency busses and load shedding from the emergency busses, b)Verifyingthedigsel generator starts on the auto-start-signal, energizes the emergency busses within 10 seconds, energizes the permanent-and auto-connected loads through the individual load timers and operates for greater than or equal to 5 minutes.

After energization, the steady-state voltage and D

frequency of the emergency 2-busses shall be maintained at 4160 4~ 410 volts and 60

+ 1.2 Hz during this test.

aThis test shall be conducted in accordance with the manufacturer's recommendations regarding engine prelube and warmup and, as applicable, loading and shutdown.

-2189- l

Unit 3 PBAPS LIMITING CONDITIONS FOR OPERATION SURVEILLANCE REQUIREMENTS 4.9.A.1.2 (Continued)

4. Verifying the diesel generator's capability to:

a) Sychronize with the-offsite-power source while the generator is loaded with its emergency loads upon a simulated restoration of offsite power.

b). Transfer its loads to the offsite power source, and c) Be restored to its standby status,

h. At least once.per 10 years or after any modifications which-could-affect diesel generator interdepgndenceby starting all four diesel generators simultaneously and verifyi.ig that all four diesel generators accelerate to at-least 855 rpm in less than or equal to 10 seconds.

i. At least once per 10-years by-draining each fuel oil tank, removing the accumulated-sediment and cleaning the tank using a sodium hypochlorite or equivalent solution. ,

J. The fuel oil storage. tank l cathodic protection-system shall be checked as follows:

1. At least once every twelve I months perform a test to determine whether the cathodic protection is adequate, and aThis test shall be conducted in accordance with the manufacturer's recommendations regarding engine prelube and warmup and, as applicable, loading and shutdown.

--218h- -

Unit 3 PBAPS LIMITING CONDITIONS FOR OPERATION SURVE!LLANCE REQUIREMENTS 4.9.A.1.2 (Continued)

2. At least once every two months inspect the cathodic protection rectifiers.

k. If the number of failures during the last 20 valid demands d $3 less than or equal to 1, the test frequency shall be at least once per 31 days.

If the number of failures during the last 20 valid demands is greater than or equal to 2, the testfrequencyghallbeatleast once per 7 days

1. All diesel generator failures, valid or non-valid, shall be reported to the Commission in a Special Report within 30 days.

Reports of the diesel generator failures shall include the information recommended in Regulatory Position C.3.b of Regulatory Guide 1.108. Revision 1, August 1977, d

Criteria for determining the number of failures and number of valid demands shall be in accordance with Regulatory Position C.2.e of Regulatory Guide 1.108, but determined on a per diesel generator basis, eThe associated test frequency shall be maintained until seven consecutive failure free demands have been performed and the number of failures in the last 20 demands have been reduced to one. For the purposes of determining the required frequency, the previous test failure count may be reduced to zero if a complete diesel overhaul to-like-new-condition is completed. This diesel overhaul, including appropriate post-maintenance operation and testing,-shall be specifically approved by the manufacturer and acceptable diesel reliability must be demonstrated. The reliability criterion shall be the successful completion of 14 consecutive tests. Ten of.these tests may be slow starts in accordance with Surveillance Requirements 4.9.A.1.2.a.3 and 4.9.A.1.2.a.4 and four tests shall be fast starts in accordance with the Surveillance Requirement 4.9.A.1.2.b. If this criterion is.not satisfied during the first series of tests, any alternate criterion to be used to reset the valid failure count to zero requires NRC approval.

l -2181-L L _ _ _ . , _ -

Unit 3 PBAPS LIMITING CONDil10NS FOR OPERATION SURVEILLANCE REQUIREMENTS 4.9.A.2 Unit Batteries

a. Every week the specific gravity, the voltage and temperature of the pilot cell and overall battery voltage shall be measured and logged.

b. Every three months the measurements thJ1 be made of voltage of each cell to nearest 0.1 Volt, specific gravity of each cell, and temperature of every fifth cell. These measurements shall be logged,

c. The station batteries shall be subjected to a performance test every third refueling outage and a service test during the other refueling outage. In lieu of the performance test every third refueling outage, any battery that shows " signs of degradation or has reached 85%

of its service life" shall be subjected to an annual performance test. The service test need not be performed on the refueling outage during which the performance test was conducted. -The specific gravity and voltage of each cell shall be determined after the discharge and logged..

4.9.A.3 Swing Buses

a. Every two months the swing buses supplying power to the

-Low Pressure Coolant Injection System (LPCIS) valves shall be tested to assure that the transfer circuits operate as designed.

-218j-I

Unit 3 PBAPS LIMITING CONDITIONS FOR OPERATION SURVEILLANCE _ REQUIREMENTS 3.9.B Operation with Inoperable Equipment 4.9.B. Operation with-Inoperable Equipment Whenever the reactor is in Run Mode or Startup Mode with the reactor not in a Cold Condition, the availability of electric power shall be as specified in 3.9 A. except as follows:

1. With one offsite circuit required by 1. When it is determined that one Specification 3.9.A.1 inoperable, offsite circuit required by restore at least two offsite circuits to Specification 3.9.A.1 is OPERABLE status within 7 days or be in inoperable, verify the.

least HOT SHUTDOWN within the next 12 OPERABILITY of the remaining hours and in COLD SHUTDOWN within the A.C. sources by performing following 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months . Surveillance Requirement 4.9.A.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.

If any of the diesel-generators have not been successfully_ tested within the preceding 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months , demonstrate OPERABILITY of these diesel ~ generators by performing Surveillance Requirement 4.9.A.1.2.a.3 for one diesel at a' time within 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months and once per 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months thereafter.-

2. With two independent off-site circuits 2. None !

required by Specification 3.9.A.1 -)

inoperable, continued operation is permissible, provided the four diesel

_ generators and associated emergency busses are operable, all core and containment cooling systems are operable and reactor power level is reduced to 25% of the design.

-l

-219-

]

1

Unit 3 PBAPS LIMITING COND1110NS FOR OPERATION SURVEILLANCE REQUIREMENTS 3.9.8 (Continued)

3. With one diesel generator inoperable. 3. When it is determined that restore the' inoperable diesel generator one diesel' generator is and associated emergency bus to OPERABLE inoperable, verify the status within 7 days or be in at least OPERABILITY of the remaining HOT SHUTOOWN within the next 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months A.C. sources by performing' and in COLD SHUTDOWN within the Surveillance Requirement following 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months . 4.9.A.l.l.a within I hour and once per 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months thereafter. Verify within 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months that required systems, subsystems, trains, components, and devices that depend on the remaining diesel-generators as a source of emergency power are OPERABLE.

If the diesel generator became inoperable for any reason other than preplanned preventative maintenance, or testing, demonstrate the-OPERABILITY of the remaining operable diesel generators by performing Surveillance Requirement 4.9A.l.2.a.3 for one diesel at a time, within 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months *-and at least once per 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months thereafter.

This test is required to be completed regardless of when the inoperable diesel

--generator is restored to OPERABILITY for f ailures that are potentially generic to 'the remaining diesel generators and for which appropriate alternative testing cannot be designed.

-220-

l Unit'2 PBAPS LIMITING CONDITIONS FOR OPERATION- SURVEILLANCE REQUIREMENTS 3.9.B (Continued)

4. With one diesel generator and one 4. When it is determined that offsite circuit required by one diesel generator and Specification 3.9.A.1 inoperable, one offsite circuit required restore at least two offsite by Specification 3.9.A.1 circuits or four diesel are-inoperable, verify the generators to OPERABLE status OPERABILITY of the remaining within 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months from the time A.C. sources by performing of initial loss or be in at Surveillance Requirement least HOT SHUTDOWN within the 4.9.A.1.1.a within 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months next 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months and in COLD SHUTDOWN and once per 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months within the following 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months . thereafter. Verify within 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months , that required systems, subsystems, trains, components, and devices that depend on the remaining diesel generators as a source of emergency power

< are OPERABLE.

If the diesel generator became inoperable for any reason other than preplanned preventative maintenance, or testing, demonstrate the OPERABILITY of the remaining

' diesel generators by performing Surveillance Requirement 4.9.A.1.2.a.3 for one diesel generator at a time, within 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months *.

5. From and after the date that one of the 5. None 125 volt battery systems is made or found to be inoperable for any reason, continued reactor operation is permissible during the succeeding three days within electrical safety considerations, provided repair work is initiated in the most expeditious manner to return the failed component to an operable state, and Specifications 3.5.F and 3.9.B.3 are satisifed.

This test is required to be completed regardless'of when the inoperable diesel.

generator is restored to OPERABILITY for failures that are potentially generic to-the remaining diesel generators and for which appropriate alternative testing cannot be designed.

-220a-1

Unit 3 PBAPS LIMITING CONDITIONS FOR OPERATION SURVEILLANCE REQUIREMENTS 3.9.8 (Continued)

6. With fuel oil in one of the diesel 6. None generator main storage tanks not available or not in conformance with Surveillance Requirement 4.9.A.1.2.e, implement the following:

a. Isolate the main storage tank from the system, with the associated diesel generator being supplied from one of the remaining storage tanks within 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months , and

b. EsLaulish and maintain a minimum of 108,000 gallons of diesel fuel oil in the other three main storage tanks within 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months , and

c. Sample the fuel oil in the other three main storage tanks and confirm conformance with specification 4.9.A.l.e within 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months , and

d. Replace the unacceptable fuel oil with acceptable fuel and return the storage tank to service within 7 days, or place the reactor in Cold Shutdown within 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months .

Accelerated testing of the diesel generators is not required.

7. With one of the 4kV emergency busses 7. None or 480V emergency-load centers required by 3.9.A.3 not energized, declare the associated equipment inoperable and take the appropriate action for that system.

Reenergize the bus within 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months or be in COLD SHUTDOWN within the following 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months .

l l

l

-2206-

Unit'3 i

PBAPS 3.9 BASES The general objective of this Specification is to assure an adequate source-of electrical power to operate the auxiliaries during plant operation, to operate f acilities to cool and lubricate the plant during shutdown, and to operate the engineered safeguards following the accident. Two independent power sources from the off-site transmission network and the diesel generators are available. One off-site source is provided through the'13.2 kV startup regulating transformer switchgear No. 3 supplied'from either the No. 343 startup trar.sformer or the startup and emergency auxiliary regulating transformer No. 3. The other off-site source is provided through the 13.2 kV startup transformer _switchgear No. 2 supplied from the startup and emergency auxiliary transformer No. 2. The two off-site sources are connected to the on-site Class lE distribution system (which begins with the 4kV emergency buses) by physically independent circuits.

The dc supply is required for switchgear and engineered safety feature systems. Specification 3.9.A states the required availability of ac and dc power; i.e., active off-site ac sources and the required amount of on-site ac and dc sources. The requirement for a minimum onsite inventory of diesel fuel is based upon an analysis of the time dependent electrical loads on the diesels following an accident. A battery charger is supplied with each of the 125-Volt batteries.

The No. 2, No. 3 and No. 343 startup transformers and unit auxiliary transformers are each sized to carry 100% of the auxiliary. load. If one.of the off-site power circuits becomes inoperable, the unit can continue to operate since the unit auxiliary transformer is in service, the other off-site power circuit is available, and the required number of diesel generators is operational.

~

If both of f-site power circuits are inoperable,: the reactor power-level must be reduced to a value whereby the units can safely reject the load and continue to supply auxiliary electric power to the station.

In the normal mode of operation,.the No. 2 startup transformer and either the No. 3 or No. 343 startup transformer are energized and four diesel generators are operable.- One diesel generator may be allowed out-of-service based on the availability of power-from the'startup transformer and the fact that three diesel generators carry sufficient engineered safeguards equipment to cover all breaks. With one off-site power circuit '

and one diesel generator out-of-service, the off-site transmission line I corresponding to the operable off-site power circuit must be available.

Upon the loss of one on-site and one off-site power source, power would be available from the other immediate off-site power. source and the three operable on-site diesels to carry sufficient engineered safeguards equipment to cover all breaks. In addition to these two' power sources, removal of the Isolated Phase Bus " quick" disconnect links would allow backfeed of power through the main transformer to the unit auxiliary transformer and provide power to carry the full station auxiliary load. 4 The time required to perform this operation is comparable to the time the reactor could remain on RCIC operation before controlled depressurization need be initiated.

-222-9

Unit 3-.

PBAPS- 1 3.9 BASES (Cont'd.)

The 125-Volt battery system shall have a minimum of 105 Volts at the battery l terminals to be considered operable. =The 250-Volt portion of the 125/250-Volt battery system shall have a minimum of 210 Volts at the battery-terminals-to be considered operable.

The ACTION requirements specified for the degradation of the power sources provide restrictions 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.

When a diesel generator is inoperable, there is an ACTION requirement to verify that all required systems, subsystems, trains, components and devices, that depend on the remaining OPERABLE diesel generators as a source of emergency power, are also OPERABLE. This requirement is intended to provide assurance that a loss-of.

offsite power event will not result in a complete loss of safety function of critical systems during the period one of the diesel generators is inoperable.

The term verify as used in this context means to administratively check by examining logs or other information to determine if certain components are out-of-service for maintenance or other reasons. It does not mean to perform the surveillance requirements needed to demonstrate the OPERABILITY of the component.

Demonstrations of diesel generator operability required by Section 4.9.B may ,

include paralleling with the offsite source and operating the diesel generator under load.

l A standby heating system is used to maintain engine jacket cooling water and engine lube oil temperature at optimum standby starting conditions. An EDG will be declared inoperable if the required temperatures cannot be maintained. The EDGs will not be operated for the sole purpose of maintaining engine temperatures.

L following an EDG failure, the redundant EDG will be inspected prior to a test

[ start to detect any external conditions that indicate starting the.EDG mignt cause similar degradation or damage.

~

The ESWS has two 100 percent. cooling capacity pumps, each powered from a separate ,

standby power supply. A third pump equivalent to the two ESW pumps, the Emergency Cooling Water pump, is located at the Emergency Cooling Tower. This_latter pump requires the operability of one of the two ESW booster pumps and two of the three Emergency Cooling Tower fans:to function adequately.- In the event the 2 pumps are inoperable, the allowable repair period is conservative-in view of the 3-month test interval for the system.

4.9 -Bases ,

The surveillance requirements for demonstrating the OPERABilllY of the diesel generators follow the recommendations of Regulatory Guide 1.9. " Selection of-Diesel Generator Set Capacity for Standby-Power Supplies," March 10, 1971, Regulatory Guide 1.137 " Fuel-0il' Systems for Standoy Diesel Generators," Revision 1, October 1979 and Regulatory Guide 1.108, " Periodic Testing of Diesel. Generator Units Used as Onsite Electric Power Systems at Nuclear' Power Plants," Revision 1, August 1977 except for paragraphs C;2.A(3), C.2.C(l), C.2.C(2), C.2.D(2), C.2.D(3) and C.2.D(4). The exceptions to Regulatory Guide 1.108 allow for gradual loading of diesel generators during testing and decreased surveillance test frequencies (in response to Generic Letter 84-15).- Test procedures minimize-the period of time that a diesel generator would not.be capable of providing emergency power and contain. direction for the prompt restoration of the diesel, if necessary, during testing.

-223-

.~ - _ _ _

PBAPS 4.9 BASES (cont'd)

The diesel generator voltage may decrease to 59% of nominal when the 2000 HP RHR pump motor is started. The load rejection test of the_ largest single load will be conducted with the EDG governor in isochronous mode using the Residual Heat Removal Pump in full flow test as the rejected load.

The term permanent and auto-connected loads means those loads which the diesel would normally be expected to supply in the scenario being tested. Verification of load shedding from the cmergency_ busses will include only those normally powered from the emergency bus during plant operations. The loads described by the term emergency loads are a Residual Heat Removal Pump, a High Pressure Service Water Pump and the 480 Volt emergency bus load center.

The diesel fuel oil quality must be checked to ensure proper operation of the diesel generators. Water content should be minimized because water in the fuel could contribute to excessive damage to the diesel engine. Amendment No. 131 centralized commitments related to Position C.2 of Regulatory Guide 1.137, Revision 1 (October, 1979) " Fuel Oil Systems for Standby Diesel Generators".

Although station batteries will deteriorate with time, utility experience indicates there is almost no possibility of precipitous failure. The type of surveillance described in this specification is that which has been demonstrated over the years to provide an indication of a cell becoming irregular or unserviceable long before it becomes a failure. In addition, the checks described also provide adequate indication that the batteries have the specified ampere hour capability.

The station batteries shall be subjected to a performance test every third refueling outage and a service test during the other refueling outages. This testing frequency complies with the testing requirements of the Institute of Electrical and Electronics Engineers (IEEE) Standard 450 (1975), " Recommended Practice for Maintenance, Testing and Replacement of Large Lead Storage Batteries," and Regulatory Guide 1.129, Revision 1-(February 1978), " Maintenance, Testing and Replacement of Large Lead Storage Batteries for Nuclear Power Plants."

A performance test determines- the ability of the battery to-meet a specified discharge rate and duration based on the manufacturer's' rating. A service test proves the capability of the battery to deliver the design requirements of the dc systems; i.e., supply and maintain in operable status all of the actual emergency loads for the design basis accident. A performance test is.the most severe test

! because the cycling on the battery at manufacturer's rating shortens the service life of the battery. A service test is performed at design load instead of manufacturer's ratings,

i. The-test interval for the Emergency Service Water System, the ESW booster pumps, o Emergency Cooling Water pump. Emergency Cooling Tower fans, and pump room fans associated with the ESW pumps is deemed adequate to provide assurance that the equipment will be operable based on good engineering judgement and system redundancy, plus the additional testing accomplished when the diesel generators are tested. Pump operability tests during normal operation will be performed by measuring the shut-off head. ,

l

-224-1

-I i

.. ; I -

PBAPS Unit 3 i

TABLE 3.2.B INSTRUMENTATION THAT INITIATES OR CONTROLS THE CORE AND CONTAINMENT COOLING SYSTEMS Minimum No. t of Operable Number of Instru-Instrument Trip Function Trip Level Setting ment Channels Pro- Remarks Cnannels Per vided by Design Trio System (1) :

2 Core Spray Pump 6 +/- sec. 4 timers All pumps-loss of'offsite power only Start Timer 13 sec. +/-7% of setting 2 timers- A&C pumps-offsite power ;

available .!

23 sec. +/-7% of setting 2 timers B&D pumps-offsite power '

available !

I per 480V. Emergency 3 +/-0.5 sec. 4 timers All timers - loss of ,

4kV bus (7) Load Center Timer offsite power only 2 LPCI Pump Start 2 sec. +/-7% of setting 4 timers LPCI pumps ALB t

Timer (Four Pumps) 8 sec. +/-7% of setting 4 timers LPCI pumps C&D

, i l 1 ADS Actuation 90 3/=t /=120 2 timers In conjunction with Low

.: Timer seconds Reactor Water Level, High i - Drywell Pressure and LPCI <

1 or Core Spray Pump running l interlock, initiates ADS. j 2 ' ADS Bypass Timer .8 /=t /=10 4 timers In conjunction with low minutes reactor water level, bypass ;

4 high drywell pressure '

initiation of ADS. ;

i

2. .RHR (LPCI) Pump 50 +/- 10 psig 4' channels Defers ADS' actuation Discharge Pressure pending confirmation of Interlock Low Pressure Core Cooling

, system operation (LPCI -

Pump running interlock). ,

2 Core Spray Pump '185 +/- 10 psig 4 channels Defers ADS actuation i Discharge Pressure pending confirmation of. Low Interlock Pressure Core cooling system operation (Core Spra

Pump ru.ning interlock).

l

Unit 3 3 PBAPS NOTES FOR TABLE 3.2.8

1. Whenever any CSCS subsystem is required by Section 3.5 to be operable, there shall be two operable trip systems. If the first column cannot be met for one of the trip systems, that trip system shall be placed in the tripped condition or the reactor shall be placed in the Cold Shutdown Condition within 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months . ;

2. Close isolation valves in RCIC subsystem.

3. Close isolation valves in HPCI subsystem,

4. Instrument set point corresponds to 378 inches above vessel zero.

5. HPCI has only one trip system for these sensors.

6. With the number of OPERABLE channels less than required by the Minimum OPERABLE Channels per Trip System requirement, place at least one inoperable channel -in the tripped condition within one hour or declare the RCIC system inoperable.

7. The failure of a 480V Emergency load Center timer could result in the failure of a 480V Emergency Load Center to re-energize following the loss of one or both offsite sources. Therefore, Technical Specification 3.9.B.7 will apply when a 480V Emergency Load Center timer'is not operable.

?

i

- - . +,, - -, ,, , - _ ..,.,,.;,_,.,, - , , . , , , . , . _ , . , _ , , , + ,

Unit 3 PBAPS LIMITING CONDITIONS FOR OPERATION SURVEILLANCE REQUIREMENTS 3.5.F Minimum low Pressure Cooling 4.5.f Minimum low Pressure Availability Cooling Availabflity

1. Deleted 1. Deleted

2. Any combination of inoperable components in the core and containment cooling systems shall not defeat -

the capability of the remaining

operable components to fulfill the cooling functions. '

3. - When irradiated fuel is in the reactor vessel and the reactor is in the Cold Shutdown Condition, both core-spray systems, the LPCI and containment cooling systems may be inoperable, provided no work is being done which has the potential for draining the reactor vessel.

4. During a refueling outage, fuel and LPRM removal and replacement may be performed provided at least one of the following conditions below is satisfied:

a. Both core spray systems and the LPCI system shall be operable except that one core spray system or the LPCI system may be inoperable

-for a period'of thirty days, or

b. The reactor vessel head is removed, the cavity is flooded, the spent fuel pool gates are removed, and the water level is maintained at-least.21 feet over the top of irradiated fuel assemblies seated in the. spent

, fuel storage pool. racks and no work is being performed which

!' has the potential for draining the reactor vessel, l,

i I

1

, -132- l l

l

- - - . - . _ , , _ _ - - _ - . - . ~ _ . _ _ . . , , . , __ ,

ML20092B854

Text

Navigation menu

Search