ML17308A150

Marked-up Revised Tech Spec Section 3/4.8.1,reducing Frequency of Required Diesel Generator Cold Fast Start Surveillance Tests,Per Generic Ltr 84-15,to Prevent Premature Engine Degradation

ML17308A150
Person / Time
Site:	Saint Lucie
Issue date:	08/27/1985
From:	FLORIDA POWER & LIGHT CO.
To:
Shared Package
ML17308A149	List: ML17308A148 ML17308A150
References
GL-84-15, NUDOCS 8509050070
Download: ML17308A150 (16)

Text

3/4.8 ELECTRICAL AMER SYSTEMS 3/4.8.1 A- C. SOURCES OPERATING

'IMITING CONDITION FOR OPERATION 3.8.1.1 As a minimum, the following A.C. electrical power sources shall be OPERABLE:

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

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

1. Two separate engine-mounted fuel tanks containing a minimum volume of 200 gallons of fuel each,

2. A separate fuel storage system containing a minimum volume of

~

40,000 gallons of fuel, and

3. A separate fuel transfer pump.

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

ACTION:

cue

a. With-e&k~n- offsite circuit other than the conditions delineated

.vs. ' '1 regtt i <ecI jtC,electrical power sources inoperable, demonstrate the OPERABILITY of the remaining A.C. sources by performing Surveillance Requirement/

4.8.1.1.la. . . . . . . within 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> and at least once per 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> thereafter gngj 5urvas'llaqce, f'e~usraAcnp + g, /,J,4.9,9'duI'S btn leSS ps 0 Vs d'Cft ly an J SW CC eSgpg,/Ip fe.S fed h t'ien %he last se y en JsvS'

/

restore at least two offsite circuits-ave~~

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

b' " With I.I. I(p l'eguit <cI A.C electrical power sources inoperable, demonstrate the OPERABILITY of the remaining A. C. sources by performing Surveillance

. within 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> and at least once per Requirement)('.8.l.l.la.

8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> thereafter; aqJ Sqr vc.i Il ance g'egulre wen 4 i3 I,l.>.G.pw> tkin&+hourS ~

Restore two diesel generators to OPERABLE status within 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> or be in at least HOT STANDBY within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and in COLD SHUTDOW within the following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />.

P

- 3/4 8-1 ST. LUCIE UNIT 2

+~Os& yu.

FLECTRJCAL POWE'R SYSTE

+AT@M (Cont) nued)

With one offsite circuit and one diesel generator of the above C required A.C. electrical power sources inoperable, demonstrate the OPERABILITY of the remaining A.C. sources by perfortiing Surveillance Requirement)( 4.8.1. 1. 1a. . . within 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> and at least once per 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> thereafter; a nd Sar ve/ I ance J ge~u,'t.e og8'nt p.a.l, I, 2a, 0 wi thiq 8 floury o n the r e Jun Vend cIie Se I restore at least one of the inoperable sources to OPERABLE status within 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> or be in at least HOT STANDBY within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and in COLD SHUTDOWN within the folioui~n 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />. Restore

<he othe~

+C. power pool r ce ( oA's te c argus ~ 0 r As eScl pe'ner kor) s fo QPE'RA BLE c+>Iud i n ahc cor J gnce wi<b +he p r oui's'on S o+ Spec;F'ez %ion 3, 8s I, I., g~ $ ,'on S fp ke ag rn ~

3 Igp<O)f'I 8+8> ff'Osag f4 g Ps~< o'P I< $ s >I to5'5'

~ With one diesel generator inoperable~ in addition above, veri fy that:

to ACTIQii f or Jf.

onents and devices

1. All required systems, subsystems, trains, component diesel generator as a that depend on the remaining OPERABLE and source of emergency power are also OPERABLE,

2. When a HODE 1, 2, or 3, the steatm-driven auxiliary feed puap is OPERABLE.

If these conditions are not satisfied within 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> be in at least HOT STANDBY within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and in COLD SHUTDOWN within the following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />.

e< With two of the above required offsite A.C. circuits inoperable, demonstrate the OPERABILITY .of two diesel generators by performing Surveillance Requirement 4.8. l. 1.2a.4. within already operating; restore at least one of the inoperable offsite sources to OPERABLE status within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> or be in at least HOT STANDBY within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />.

~ ~ ~

Fo J) ow iljp r 0, 5 fdrgdibn of one'E4ss~e Foll pw Actlyq $ 't~i'e a. baseJ on t'sec nP +he t~s ti t I I oSS o + ~fslge g C, cs rcu s4 ~

ST. LUCIE - UNIT 2 3/4 8-2

ELECTRICAL POWER SYS S

.ACTIQN (Continued)

With two of the above required diesel generators inoperable, demonstrate the OPERABILITY of two offsite A.C. circuits by Surveillance Requirement 4.8.1.1.1a. within 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> and at: r'erforming least once per 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> thereafter; restore at least one of the or be inoperable diesel generators to OPERABLE status within 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> in at least HOT STANDBY within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and in COLD SHUTDOWN within the following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />. @gal Fo II o w tnt r estor><i'on

<Ae di e Se I g<n<f't'r. ~ n I tp F ol low Acta'on S'0apceen4 biSe J en +he +1'me o+ >he ini t'1 'a t loss oW z J'i ere I gr~ p r With one Unit 2 startup transformer (2A or 2B) inoperable and with a

- Unit 1 startup transformer (1A or 1B) connected to the same A or B offsite power circuit and administratively available to both units, then should Unit 1 require the use of the startup transformer administratively available to both units, Unit 2 shall demonstrate the operability of the remaining A.C. sources by performing Surveil-lance Requirement/ 4.8. l. l. la. . . . . . within 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> and at least once per 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> thereafter)t'baci S~r veill><<ee ReItuireeen+

'f,8.I.L ca+ ~i~bin >9 houfs'tnle~s prov'ousty auJ success pu/(

'teske0 wf +ha'n %he. lost ge.ver J>y5' restore the inoperable startup transformer to OPERABLE status within 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> or be in at least HOT STANDBY within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and COLD SHUTDOWN within the following 30 hours.

SURVEILLANCE RE UIREMENTS 4.8. l. l. 1 Each of the above required independent circuits between the offsite transmission network and the onsite Class lE distribution system shall be:

a0 Determined OPERABLE at least once per 7 days by verifying correct breaker alignments, indicated power availablity, and

b. Demonstrated OPERABLE at least once per 18 months by transferring (manually and automatically) unit power supply from the normal circuit to the alternate circuit.

ST. LUCIE - UNIT 2 3/4 8-+

3

ELECTRICAL POWER SYSTEM SURVEILLANCE RE UIREMENTS Continued 4.8.1.l.2 Each diesel generator shall be demonstrated OPERABLE:

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

1. Verifying the fuel level in the engine-mounted fuel tank,

2. Verifying the fuel level in the fuel storage tank,

3. Verifying the fuel transfer pump can be started and transfers fuel from the storage system to the engine-mounted tank,

4. Verifying the diesel starts and <hen accelerates to Synchionoux p"J O'Orpel ~ 't" . generator vo1tage and frequency~~>e a 8 4160 4 420 volts and 60 k 1.2 Hz.

Th ch I h l1 "f r,'.,:."

test by'using one of the following signals:

0, ~

a) Manual. e b) Simulated loss"of-offsite power by itself.

c) Simulated loss"of-offsite power in conjunction with an ESF actuation test signal.

d) An ESF actuation test signal by itself.

~g,.q.<.Hy pr~~~~i Y .

5.

or e ual operates to~

ws h a kW load greater than or equal to least an additional 60 minutes ed-

~

g Verifying the generator is synchronized, <loaded to greater than spPs kW and for at

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

At least once per 31 days and after each operation of the diesel where the period of operation was greater than or equal to 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> by checking for and removing accumulated water from the engine-mounted fuel tanks.

C. At least once per 92 days and from new fuel prior to addition to the storage tanks, by obtaining a sample of fuel oil in accordance with ASTM-D270-1975, and by verifying that the sample meets the,fol'lowing minimum requirements and is tested within the specified time limits:

1. As soon as sample is taken or prior to adding new fuel to the storage tank verify in accordance with the test specified in ASTM"D975-77 thatthe sample has:

ST. LUCIE - UNIT 2 3/4 8-P

t' ELECTRICAL POWER SYS SURVEILLANCE RE UIREHENTS Continued

.a) A water and sediment content of less or equal to-0.05 volume percent.

b). A kinematic viscosity 9 40 C of greater than or equal to 1.9 centistokes, but less than or equal to 4.1 centistokes.

c) A specific gravity as specified by the manufacturer 0 60/60 F of greater than or equal to 0.8 but less'than or equal to 0.99 or an API gravity 9 60 F of greater than or equal to 11 degrees but less than or equal to 47 degrees.

2. Within 1 week after obtaining the sample, verify an impurity level of less than 2 mg of insolubles per 100 ml when tested in accordance with ASTH-02274-70.

3. Within 2 weeks of obtaining the sample verify that the other properties specified in Table 1 of ASTH-0975-77 and Regulatory; Guide 1.137 Position Z.a are met when tested in accordance with ASTH-0975-77.

5'e.e. ne.W t Jp

({. 8 lees+ once, per I P 9'cyl f'4e. oI ('c.se I pinero for S'Ai I/

LC'AWS'fe )

from ambient condition and.

acceleratergto at least 900 rpm in less than or equal to 10 seconds. The generator voltage and frequency shall be 4160 k 420 volts and 60 a 1.2 Hz within 10 seconds after the start signal.

m anualty fo its aqui'omni'>Pe cme~pency Lupi TJc Verifying the generator ispsynchronizedg loaded to greater than Jae least an additional 60 minutes, ~

operates with a load greater than or equal to 368S'W for at The diesel generator shall be started for this test by'using one of the following signals:

a) Manual.

b) Simulated loss-of-offsite power by itself.

c) Simulated loss-of-offsite power in conjunction with an ESF actuation test signal.

d) An ESF actuation test signal by itself.

This tes<, 'ig >f is per gor~cJ so f wf;i'oinc>les ~ifh fee 4es >'ng reIIt4>red by Suri'eall>iiee geg ur'rewe~is', > I t, 4'a,9 3 nJ i< n~y

~

lSo 5'er ve fo e incurs e,nfl'nee4 44+se r 8 eire oi eii tS as me ll+

g D7. LoclE. Opllr 2.

a*

1 II I

~ ~

LECTRICAL POWER SYSTBfS

. SURVEILLANCE RE UIREMENTS Continued

e. At least once per 18 months during shutdown by:

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. the generator capability to reject a load of greater 3o'erifying.

than or equal to 453 kM while maintaining voltage at 4160 +

420 volts and frequency at 60 + 1.2 Hz.

Verifying the generator capability to reject a load of 3685 kM without tripping. The generato~ voltage shall not exceed 4784 volts during and following the load rejection.

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

a) Verifying deenergization 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 within 10 seconds, energizes the auto-connected shut" down loads through the load sequencer and operates for greater than or equal to 5 minutes while its generator is loaded with the shutdown loads. After energization, the steady-state voltage and frequency of the emergency busses i

shall be maintained at 4160 420 volts and 60 1.2 Hz during this test.

i

5. Verifying that on an ESF actuation test signal (without loss-of-offsite power) the diesel generator star ts on the signal and operates on standby for greater than or auto-startequal to 5 minutes. The steady-state generator voltage and frequency shall after be 4160 t 420 volts and 60 a 1.2 Hz within 10 seconds the auto-start signal; the generator voltage and frequency shall be maintained within these limits during this test.

6. Simu1ating a loss-of-offsite power in conjunction with an ESF actuation test signal, and a) Verifying deenergization 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 permanent1y connected:

loads within 10 seconds, energizes the auto-connected emergency (accident) loads through the load sequence and operates for greater than or equa1 to 5 minutes while its generator is loaded with the emergency loads. After energization, the steady-state voltage and of the emergency busses shall be maintained at frequency4160 k 420 volts and 60 2 1.2 Hz during this test.

c) Verifying that all automatic diese1 generator trips, except engine overspeed and generator differential, are automatica11y bypassed upon loss of voltage on the emer-gency bus concurrent with a safety injection actuation signal.

ST. LUCIE- UNIT 2 3/4 8-S ~AukH~A o .

ELECTRICAL POWER SYSTEMS SURVEILLANCE RE UIREMENTS Continued I

7. Verifying the diesel generator operates for at least 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.

Ouriog the first 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> of this test, the diesel ge~ereto shall be loaded to greater than or equal to~~W and during the remaining 22 hours2.546296e-4 days <br />0.00611 hours <br />3.637566e-5 weeks <br />8.371e-6 months <br /> of this test, the diesel generator shall be loaded to greater than or equal to~ kW. The enerator voltage and frequency shall be 4160 2,420 vo ts an 6 e . Hz pe&

within 10 seconds after the start signal; the steady-state generator voltage and frequency shall be maintained within these limits during this test. Within 5 minutes after completing this 24-hour test, perform Surveillance Requirement 4.8.1. 1.2e.4.b).

8. Verifying that the auto-connected loads to each diesel generator do not exceed the 2000-'hour rating of~j85. kW.

9. the diesel generator 's capability to: 393S'erifying a) Synchronize with the offsite power source while the gener ator i s 1 oaded wi th i ts emergency 1 oads upon a simulated restoration of offsite power, b) Transfer its loads to the offsite power source, and c) Be restored to its standby status.

10. Verifying that with the diesel generator operating in a test mode (connected to its bus), a simulated safety injection signal overrides the test mode by (1) returning the diesel generator to standby operation and (2) automatically energizes the emergency loads with offsite power.

11. Verifying that the fuel transfer pump transfers fuel from each fuel storage tank to the engine-mounted tanks of each diesel via the installed cross connection lines.

Verifying that the automatic load sequence timers are OPERABLE with the interval between each load block within t 1 second of its design interval.

At least once per 10 years or after any modifications which could affect diesel generator interdependence by starting the diesel generators simultaneously, during shutdown, and verifying that the diesel generators accelerate to at least 900 rpm in less than or equal to 10 seconds.

g. At least once per 10 years by:

l. Oraining each fuel oil storage tank, removing the accumulated sediment and cleaning the tank using a sodium hypochlorite solution, and

2. Performing a pressure test of those portions of the diesel fuel oil system designed to Section III, subsection ND of the ASME Code at a test pressure equal to 110K of the system design pressure.

ST. LUCIE - UNIT 2 3/4 8-g I 7

ELECTRICAL POWER SYSTEMS I

SURVEILLANCE RE UIREMENTS Continued Da lese 4.8..1.1.3 ~Re orts-be re diesel genera to the o

Commission pursuant ures shall include th 'tion to Specificat

~ ~

. . . Reports recommended of in Regula-

,number addition of failures in the is greater than o

'rmation s

to 7, the report recommended in Regulatory Pos '.b

'd tests (on a per nuclear unit basis) e supplemented to include the of'egulatory 4.8. 1.1.4 The Class lE underground cable system shall be demonstrated OPERABLE within 30 days after the movement of any loads in excess of 8(C of the ground surface design basis load over the cable ducts by pulling a mandrel with a diameter of at least 8(C of the duct's inside diameter through a duct exposed to the maximum loading (duct nearest the ground's surface) and..

verifying that the duct has .not been damaged.

ST. LUCIE " UNIT 2 3/4 8/>

TABLE 4.8-1 DIESEL GENERATOR TEST SCHEDULE Failures Last 10 Valid Tests.

least on e per 1 day least on e per 4 day least on e-per days 1tersa or etermsnsng number of ailures and number of vali tests sh ll be in accordance with Regulato Position C.2.e f Regulat Gui l. 108, Revis n 1, August 1977, where the last 1 tests ar ry dete ined on a per uclear unit basis. For the purpose of this test chedule, only v lid tests conduct after the Opera ing Licens issuan e date shall be included in the co utation of the valid t ts". Entry in this test schedul shall be made a the

'st 100 31 day t t frequency.

Saaber of Failures Hmaber of Failures in Last 20 Valid Tests~

in last Tests*

100 Valid

~tl g At least once per 31 days a2** At least once per 7 days

~

+Criteria. or determining nuaber of faQures and neaber of valid tests shall be in. accordance @Ltd Regaiatory Position C.2.c of Retulatory Guide 1.108, Revision 1, hugest 1977> a<here the number of testspM faQureg is determined.

on a per diesel generator basis<<%HA 6+ APpu&C i/

'~or the payo'se-W'determ~rg requhed.test"frequency, a ~facturer approved diesel overhaul follond by fourteen successive and successful diese1 surveQIance testsuding four gast starts, per Surveillance Requirements 4.8.1.1.2.a.4+hd 4.8.1.1.2.+vQl serve to transvalue the faiIuze count to sero and overhauled diesel was not reinitiate application of this table as if th>>

~e associated teat frequency shall be maintained unti? seven consecutive.

failure free demands have been performed and the nmaber of failures in the last'20 valid.demands has been reduced to one or less.

ST. UlCIE . UNIT 2 4 8-f q Jo.

ELECTRICAL, POWER-.SYSTEHS A.C. SOURCES-'-,

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

a. One circuit between the offsite transmission network and the onsite Class 1E distribution system, and

b. One diesel generator with:

1. Two engine-mounted fuel tanks each containing a minimum volume of 200 gallons of fuel,

2. A fuel storage system containing a minimum volume of 40,000 gallons of fuel, and

3. A fuel transfer pump.

APPLICABILITY: HODES 5 and 6.

ACTION:

With less than the above minimum required'.C. electrical power sources OPERABLE, im.diately suspend all operations involving CORE ALTERATIONS, positive reactivity changes, movement of irradiated fuel, or crane operation with loads over the fuel storage pool, and within 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br />, depressurize'and vent the Reactor Coolant System through a greater than or equal to 3.58 square inch vent. In addition, when in HODE 5 with the reactor coolant loops not filled, or in HODE 6 with the water level less than 23 feet above the reactor vessel flange, imediately initiate corrective action to restore the required sources to OPERABLE status as soon as possible.

SURVEILlANCE RE UIREHENTS 4.8.1.2 The above required A.C. electrical power sources shall be demonstrated OPERABLE by the. performance of each of the Surveillance Requirements of.

4.8.1.1.1y4.8.1.1.2 (except for requirement 4.8.1.1.2a.5),

an/

ST. LUCIE -. UNIT 2 3/4 8-P lo ~w~e~ Uo.

3/4.8. ELECTRICAL"-. POWER SYSTEMS BASES.

3/4.8. 1 3/4.8.2 and 3/4.8.3 A. C. SOURCES D. C SOURCES and ONSITE POWER DISTRIBUTION SYSTEMS The OPERABILITY of. the A.C. and D.C. power sources and associated distribution systems during operation ensures that sufficient power will be available to supply the safety related equipment required for 1) the safe shutdown of the facility and 2) the mitigation and control of accident condi" tions within the facility. The minimum specified independent and redundant A.C. and D.C. power sources and distribution systems satisfy the requirements of General Design Criterion 17 of Appendix "A" to 10 CFR 50.

The ACTION requirements specified for the levels of degradation of the power sources provide restriction upon continued facility operation commen-surate with the level of degradation. The OPERABILITY of the power sources are consistent with the initial condition assumptions of the safety analyses and are based upon maintaining at least one redundant set of onsite A.C. and D.C. power sources and associated distribution systems OPERABLE during accident conditions coincident with an assumed loss of offsite power and single failure of the other onsite A.C. source. The A. C. and D. C. source allowable out-of-~'-

service times are based on Regulatory Guide 1.93, "Availability of Electrical Power Sources," December 1974. When one diesel generator is inoperable, there is an additional ACTION requirement to verify that all required systems, subsystems, trains, components and devices, that depend on the remaining OPERABLE diesel generator as a source of emergency power, are also OPERABLE, and that the steam-driven auxiliary feedwater pump is OPERABLE.. This require-ment 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.

The OPERABILITY of the minimum specified A.C. and D.C. power sources and associated distribution systems during shutdown and refueling ensures that

1) the facility can be maintained in the shutdown or refueling condition for extended time periods and 2) sufficient instrumentation and control capability is available for monitoring and maintaining the unit status.

The Surveillance Requirements for demonstrating the OPERABILITY of the diesel generators are in accordance with the recommendations of Regulatory Guides 1.9 "Selection of Diesel Generator Set Capacity for Standby Power Supplies," March 10, 1971, and 1. 108 "Periodic Testing of Diesel Generator Units Used as Onsite Electric Power Systems at Nuclear Power Plants," Revision 1, August 1977, and 1. 137, "Fuel Dil Systems for Standby Diesel Ge~nera ors, ReViSiOn 1, OCtOber 1979> ~ Ge nensc, L.etPCr 8q-J5 "pr opos;e J g 4<f Act.ops ko 2'fst I3I'ot'e ~n J M>es7 i'~'n Ds o zo/ 6 e e y-~ foP /el'a gf ls'~y" ota AF ~op I984 >St] 4" R C ~4Wff'FOtt'/sPffg' i i !CCATS.l >O 8 HCtg JNS gp 6 +0 H

its F fSCslsiy 0pe~> f':~g ~feCsfS< 4'PF-1 <ur kOrkh AASsytt off( / 2( J Ape,I ~s., imp.

ST. LUCIE - UNIT 2 B 3/4 8-1

STATE OF FLORIDA COUNTY OF DADE J. W. Williams Jr. being first duly sworn, deposes and says:

That he is a Grou Vice President of Florida Power 8 Light Company, the Licensee herein; That he has executed the foregoing document; that the statements made in this document are true and correct to the best of his knowledge, information, and belief, and that he is authorized to execute the document on behalf of said Licensee.

J. W. Williams, Jr.

Subscribed and sworn to before me this day of , led.

OTA'RY'PUBL1C, in and for the County

( 'of Dade, State of Florida FLORIDA

,MOTARY PUBLIC STATE OF

> NY CORHISSIOR EXP. FEO l4, l985 8056ED IHRU GERERAL IRS. URBAN rz My Commission expires:

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