ML17228B090

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Proposed Tech Specs Re Incorporation of line-item TS Improvements to TSs 3/4.8.1 & 4.8.1.2.2 for Licenses DPR-67 & NPF-16
ML17228B090
Person / Time
Site: Saint Lucie  NextEra Energy icon.png
Issue date: 04/03/1995
From:
FLORIDA POWER & LIGHT CO.
To:
Shared Package
ML17228B089 List:
References
NUDOCS 9504100080
Download: ML17228B090 (40)


Text

St. Lucie Unit 1 and Unit 2 Docket Nos. 50-335 and 50-389 Proposed License Amendments Emergency Diesel Generators; Change to Testin Re uirements er GL 93-05 and 94-01 ATTACHMENT 3 ST, LUCIE UNIT '1 MARKED-UP TECHNICAL SPECIFICATION PAGES Page 3/4 8-1 Page 3/4 8-2 Page 3/4 8-3 Page 3/4 8-4 Page 3/4 8-6b Page 3/4 8-6c Page 3/4 8-7 Page B 3/4 8-1 INSERT-A/INSERT-B 9504100080 950403 PDR ADOCK 05000335 c . P . PDR

3 4.8 CTR CA R SYSTEHS

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CR 3.8. 1. 1 As a mintmum, 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 generator sets each with:
1. Engine-mounted fuel tanks containing a minimum of 152 gallons of fuel,
2. A separate fuel storage system containing a minimum of 16,450 gallons of fuel, and
3. A separate fuel transfer pump.

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~ACT N:

a ~ With one offsite circuit of 3.8. 1.1.a inoperable, except as provided in Action f. below, demonstrate the OPERABILITY of the remaining A.C. sources by performing Surveillance Requirement 4.8. 1. 1. l.a 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 er 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> thereafter. +

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~As-OPHtAfBLH'-Y-by-pe&cnhng-Sur ve+Ranee-R m c Restore the offsite circu t to OPERABLE sta us w thin 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.

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b. With one diesel generator of 3.8.1.1.b inoperable, demonstrate the an inoperable support OPERABILITY of the A. C. sources by performing Sur veil 1 ance Requirement system an3~ep nden<<y 4.8.1.1.1.a 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; and if the FDG became ino erable due to an cause other than preplanned nse.r preventat ve ma ntenance or test ng, emons rate e P RABILITY of

'e the remaining OPERABLE DG by performing Surveillance Requirement.

4.8. 1.1.2.a.4 withi ou  ; restore the diesel generator to OPERABLE status w t in 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 />.

shaB Additionally, verify within 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> or be in HOT STANDBY within the r 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 /> that:

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+/his test completed regardless of when the inoperable EDG is restored to OPERABIL TY.

If the absence of any camen-cause failure cannot be confirmed,

~8 hoursA unless it can be confirmed that the cause of the inoperable EDG does not exist on the remaining ST. LUG IE - UNIT 1 3/4 8-1 Amendment No. 483-,

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E CTR CA POWER SY , HS ACT N C ntinued 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

2. When in MODE 1, 2 or 3, the steam-driven auxiliary feed pump is OPERABLE.

C. With one offsite A.C. circuit and one diesel generator inoperable, an inoperabte support demonstrate the OPERABILITY of the remaining A.C. sources by performing Surveillance Requirement 4.8. 1. 1.1.a within one hour system, an independently estabie component, or 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; and if the EDG became Jn st ino erable due to an cause other than preplanned preventative maintenance or test>ng, emonstrate the OPERABILITY of the remaining OPERABLE EDG by performing Surveillance Requirement 4.8.1.1.2.a.4 within 8 hour9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> Restore at least one of the inoperable sources to OPERABLE s a us 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 SHUTDOMN within the following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />. Restore the other A.C. power source (offsite circuit or AC diesel generator) to OPERABLE status in accordance with the provisions of Section 3.8.1.1 ACTION Statement a or b, as appropriate, with the time requirement of that ACTION Statement based on the time of the initial loss of the remaining inoperable A.C. power sc arce.

Additionally, verify within 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> or be in 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 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br /> that:

1. 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
2. When in MODE 1, 2 or 3, the steam-driven auxiliary feed pump is OPERABLE.
d. Mith two of he re uired offsite A.C. circuits ino erable Aemonsh~Ae gg~f s en ma'am y-sequent ~mAng

~e+II+ance-RequHement-4-.8-.1-.1-.2-.a-.4-on-both-dies Pie-8-h u s e restore 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 80T STANDBY within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />. Following restor-ation of one offsite source, follow ACTION Statement a. with the time requirement of 'that ACTION Statement based on the time of the initial loss of the remaining inoperable offsite A.C. circuit.

If the absence of any comaon-cause failure cannot be confirmed, unless it can be confirmed that the cause of the inoperable EOG does not exist on the remaining EOG>>,

ST. LUC IE - UNIT 1 3/4 8-2 Amendment No. 88-,

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.L CTR CAL POM R SYS ACTION Continued

e. With two of the above required diesel generators inoperable, demonstrate the OPERABILITY of two offsite A.C. circuits by performing Surveillance Requirement 4.8.1. l. l.a 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; restore one of the 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 /> 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 COLO SHUTDOWN within the following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />. Following restoration of one diesel generator unit, follow ACTION Statement b. with the time requirement of that ACTION Statement based on the time of initial loss of the remaining inoperable diesel generator.

With one Unit 1 startup transformer (lA or 1B) inoperable and with a Unit 2 startup transformer (2A or 2B) connected to the

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same A or B offsite power circuit and administratively available to both units, then should Unit 2 require the use of the startup transformer administratively available to both units, Unit 1 shall demonstrate the OPERABILITY of the remaining A.C. sources by performing Surveillance Requirement 4.8. 1.1. l.a 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 er 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> thereafter. ee~

PENNttlW-by y~~g-SurveW&nee-Requhreme Restore t e nopera le 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 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />.

SURVEILLANCE REQUIREMENTS S S 0 0 S S S S S 0 S S S S S 0 0 R S 0 Q R S S 0 S 0 0 S 0 R 0 '8 0 S 0 Q S 0 8 S % 0 0 '0 '0 0 S S S S S S 0 S S 8 S S S S S 0 8 S S '8 S 'S S 8 S S S 8 S S S 8 4.8. 1. 1. 1 Each of the above required independent circuits between the offsite transmission network and the onsite Class lE distribution system shall be:

Determined OPERABLE at least once per 7 days by verifying.,correct breaker alignments, indicated power availability; and

b. Demonstrated OPERABLE at least once per 18 months by transferring (manually and automatically) unit power supply from the auxiliary transformer. to the startup transformer.

4.8.1.1.2 Each diesel generator shall be demonstrated OPERABLE:

uenc ec on a STAGGERED TEST BASIS by.

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pl~ l. Verifying 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, ST. LUCIE - UNIT 1 3/4 8-3 Amendment No. 403-, p+

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CTR CA POW R SY SURV ANC R U R MENTS Continue

4. Verifying the diesel starts from ambient cond:ition and accelerates to approximately 900 rpm in less than or equal to 10 seconds**. The generator voltage and frequency shall be 4160 + 420 volts and 60 2 1.2 Hz within 10 seconds after the start signal**. The diesel generator shall be started for this test by using one of the following signals:

a) Manual/Local 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.

~cordance ~'kh Verifying the generator is s nchronized, loaded to greater

~ waeuf-a Wurer s re.c:oeme+da4io~s than or e ual to 3500 kW i and operates w>t in a oad an of 3300 to 0 kW*** for at least an additional 60 minutes, and

6. Verifying the diesel generator is aligned to provide standby power to the associated emergency busses.
b. By removing accumulated water:
1. From the engine-mounted fuel tank at least once per 31 days and after each occasion when the diesel is operated for greater than 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br />, and
2. From the storage tank at least once per 92 days.

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    • The diesel generator start (10 sec.) from ambient conditions shall be performed at least once per 184 days in these surveillance tests. All other diesel generator starts for the purposes of this surveillance testing may be preceded by an engine prelube period and may also include warmup procedures (e.g., gradual acceleration) as recommended by the manufacturer so that mechanical stress and wear on the diesel generator is minimized.

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    • en dion *an-o~quA-to-60-s con s-sh e-performed puvpos~~Ms td-tl-dt t-de& t~tMddddM at~es4-once-every-N4-days~)min~or th~a&ag-test-shaH-sian d-tt-t urvei-l-l ance-te a The indicated load band is meant as guidance to avo>d routine overloading. Variations in loads in excess of the band due to changing bus loads shall not invalidate this test.

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ELECTRICAL POWER SYSTEMS SURVEILLANCE RE UIREMENTS Continued

g. At least once per ten years by:
1. Draining each fuel storage tank, removing the accumulated sediment and cleaning the tank using an appropriate cleaning compound, and
2. Performing a pressure test of those portions of the diesel fuel oil system designed to USAS 831.7 Class 3 requirements at a test pressure equal to llOL of the system design pressure.

4.8.1.I.3 ~ll ommission pursuant to Specification 6.9.2. o o iesel gene lures shall include the' informati ended in gulatory Position C. . latory G , Revision 1, August 1977.

If the number of failures in t 'd tests (on a per nuclear nit basis) is gre r n or equal to 7, the re o inc a ditional information recommended in Regulator eg~~u4de-1~)~ev+Aon-4~ug

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l be supplemented 4.8. 1.1.4 The Class 1E underground cable system shall be demonstrated OPERAHLE within 30 days after the movement of any loads in excess of 80'1. of the ground surface design basis load over the cable ducts by pulling a mandrel with a diameter of at least 8N 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.

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OIESEL GENERATOR TEST SCHEOULE umb Last

~f-Fa+la res i 20 Valid Tests" n~ 4 idol used)

Last 100 Valid Tests" Test Fre uenc

< 5 At least once pe 1 days

) 5 At least o e per 7 days

" Criteria for detgrmining number of failures and number f valid tests shall be in accorda Ce with Regulatorygt'osition C.2.e of Regula ry Guide 1.108, Revision 1 ugust 1977, where )he number of tests and failu s is determined on a pe diesel generator basis'.

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""T s test frequency shall be maintained until seven consecutive failu free demands have been performed and the number of failures in the last 20 va 'd demands have been reduced to one or less. Initial entry into this test sahed~hal~em~h~idayMes~fluency ST. LUCIE - UNIT 1 3/4 8-60 Amendment No.

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ELECTRICAL POWER SYSTEMS SHUTOOWN LIMITING CONOITION 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 set with:
1. Engine-mounted fuel tanks containing a minimum of 152 gallons of fuel,
2. A fuel storage system containing a minimum of 16,450 gallons of fuel, and
3. A fuel transfer pump.

APPLICABILITY: MOOES 5 and 6.

ACTlON:

With less than the above minimum required A.C. electrical power sources OPERABLE, immediately suspend all operations involving CORE ALTERATIONS, positive reactivity changes, movement of irradiated fuel, or crane operation with loads over the fuel storage pool. In addition, when in MOOE 5 with the reactor co'olant loops not filled, or in MOOE 6 with the water level less than 23 feet above the top of irradiated fuel assemblies seated within the reactor pressure vessel, immediately initiate corrective action to restore the required sources to OPERABLE status as soon as possible.

SURVEILLANCE RE UIREMENTS 4.8.1.2.1 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. 1 and 4.8.1. 1.2 except for requirement 4.8.1.1.2a.5.

be repo diesel generator a Regulatory Position C.3.b of If the number of fai lures in

'8, t e Comaission pursuant to Specification 6.9.2.

shall include the informant >n-re aeended in r G po of Revision 1, August 1977.

tests (on a per nuclear unit basis) is greater includ equal to 7 the report s a stional informatio recommended in Regulatory o I

'3.b u lemented to ST. LUCIE - UNIT 1 3/4 8-7 Amendment No.

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3/4.8 ELECTRICAL POWER SYSTEMS BASES The OPERABILITY of the A. C. and O.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 mi tigation and control of accident conditions 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 Criteria 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 commensurate with the level of degradation. The OPERABILITY of the power sources are consis-tent with the initial condition assumptions of the accident analyses and are based upon maintaining at least one of each of the onsite A.C. and D.C. power sources and associated distribution systems OPERABLE during accident conditions coincident with an assumed loss of offsite po~er and single failure of the other onsite A.C. source. 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 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 Adg re+ means to administratively check by examining logs or other information to determine if certain components are out-of-service for or other

+SE.O-A reasons. It does not mean to perform the surveillance maintenance requirements needed to demonstrate the OPERABILITY of the component.

Ambient conditions are the normal standby conditions for the diesel engines.

Any normally running warmup systems should be in service and operating, and manufacturer's recommendations for engine oil and water temperatures and other parameters should be followed.

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

~ f The Surveillance Requirements for demonstrating the OPERABILITY of the diesel generators are in accordance with the recommendations of Regulatory Guide 1.108, "Periodic Testing of Diesel Generator Units Used as Onsite Electric Power Systems at Nuclear Power Plants," Revision 1, August 1977, Regulatory Guide 1. 137, "Fuel Oil Systems for Standby Diesel Generators," Revision 1, October 1979, Generic Letter 84-15, "Proposed Staff Actions to Improve and Maintain Diesel Generator Reliability," dated July 2, 1984, and NRC staff positions reflected in Amendment No. 48 to Facility Operating License NPF-7 for North Anna Unit 2, dated April 25, 19&5 tab XseV-s ST. LUCIE - UNIT 1 B 3/4 8-1 Amendment No.

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St. Lucie Unit 1 and Unit 2 Docket Nos. 50-335 and 50-389 Proposed License Amendments Emergency Diesel Generators; Change to Testin Re uirements er GL 93-05 and 94-01 INSERT - A All EDG inoperabilities must be investigated for common-cause failures regardless of .how long the EDG inoperability persists.

When one diesel generator is inoperable, required ACTIONS 3.8.1.1.b and 3.8.1.1.c provide an allowance to avoid unnecessary testing of EDGs. If it can be determined that the cause of the inoperable EDG does not exist on the remaining OPERABLE EDG, then SR 4.8.1.1.2.a.4 does not have to be performed. Eight (8) hours is reasonable to confirm that the OPERABLE EDG is not affected by the same problem as the inoperable EDG. If it cannot otherwise be determined that the cause of the initial inoperable EDG does not exist on the remaining EDG, then satisfactory performance of SR 4.8.1.1.2.a.4 suffices to provide assurance of continued OPERABILITY of that EDG.

If the cause of the initial inoperability exists on the remaining OPERABLE EDG, that EDG would also be declared inoperable upon discovery, and ACTION 3.8.1.1.e would be entered. Once the failure is repaired (on either EDG), the common-cause failure no longer exists.

INSERT - B as modified by Generic Letter 93-05, "Line-Item Technical Specifications Improvements to Reduce Surveillance Requirements for Testing During Power Operation," dated September 27, 1993, and Generic Letter 94-01, "Removal of Accelerated Testing and Special Reporting Requirements for Emergency Diesel Generators," dated May 31, 1994.

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St. Lucie Unit 1 and Unit 2 Docket Nos. 50-335 and 50-389 Proposed License Amendments Emergency Diesel Generators; Change to Testin Re uirements er GL 93-05 and 94-01 ATTACHMENT 4 ST ~ LUCIE UNIT 2 MARKED-UP TECHNICAL SPECIFICATION PAGES Page 3/4 8-1 Page 3/4 8-2 Page 3/4 8-3 Page 3/4 8-4 Page 3/4 8-7 Page 3/4 8-7a Page 3/4 8-8 Page 3/4 8-9 Page B 3/4 8-1 INSERT-A/INSERT-B

'I ei e ~ I 3/4.8 ELECTRICAL POWER SYSTEMS 3/4.8.1 A.C. SOURCES OP ERAT ING LIMITING CONDITION FOR OPERATION 3.8.1.1 As a miriimum, the following A.C. electrical power sources shall be OPERABLE:

a. Two physically independent circuits between the offsite transmission network and the cnsite Class 1E distribution system, and
b. Two separate and independent diesel generators, each with:
1. Two separate engine-mounted fuel tanks containing a miriimum volume'of 200 gallons of fuel each,
2. A separate fuel storage system coritaining a minimum volume of 40,000 gallons of fuel, and
3. A separate fuel transfer pump.

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

ACTION:

a With one offsite circuit of 3.8.1.1.a inoperable, except as provided in Action f. below, demonstrate the OPERABILITY of the reriiaining A.C. sources by performing Surveillance Requirement 4 8.1.l.l.a 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.

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c OPERABLE I y-5 Rat status within 72 hours or be in at least HOT STANDBY within the next 6 hours and COLD SHUTDOWN within the following 30 hours.

With one diesel generator of 3.8.1.1.b inoperable, demonstrate

an inoperable support thc OPERA'BILITY of thc A.C. sources by performing Surveillance i system, an independently Requirement 4.8.1.1.1.a 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 testable component, or 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> thereafter; arid if the EDG became inoperable due to any cb cause other than preplanned preventative maintenance or testing, demonstrate the PERABILITY of the remaining OPERABLE EDG b performing Surveillance Requirement 4.8.1'.1.2a.4 within o shall restore the diesel generator to OPERABLE status within his test be completed regard iess of when the inoperablc EDG is restored to OPERABILITY.

nSer rf the "absence of any cannon-cause failure cannot be confirmed.

"ST. LUCIE - UNIT 2 3/4 8-1 Amendin;.;It NO. 25, a hours, unless EDG>>

it can be confirmed that the cause of the inoperable EDG does not exist on the remainins

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u ii FLECTRICAL ACTION POWER (Continued)

SYS1 t 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 rext 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 />. Additionally, verify within 2 hours or be in 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 wi;thin the following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br /> that:

l. 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
2. When in NODE 1, 2 or 3, the steam-driven auxiliary feed pump is OPERABLE.

C. With one offsite A.C. circuit and one diesel generator inoperable, an inoperable support demonstrate 'the OPERABILITY of the remaining A.C. sources by system, an independently performing Surveillance Requirement 4:8.l.l.l.a within one hour testable component, or

"/ ark 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; and if the EDG became ino erable due to an cause other tha preplanned preventative maintenance or testing, emonstrate the OPERABILITY of the .

remaining OPERABLE EDG by performing Surveillance Requirement 4.8.1.1.2a.4 within 8 hour9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> Restore at least one of the inoperab e sources to OPERABLE status within 12. hours 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 /> arid in COLD SHUTDOWN within the following 30 hour3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br /> s . Restore the other A.C. power source (offsite circuit or diesel generator) to OPERABLE status in accordance with the provisions of

,Section 3.8;1.1. ACTION Statement a or b, as appropriate, with the time requirement of that ACTION Statement based on the time of initial loss of the remaining inoperable A.C.

power source Additionally, verify within 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> or be in 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 /> that:

l'

1. 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
2. When in NODE 1, 2, or 3, the steam<riven auxiliary feed pump is OPERABLE.

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>unless it can be confirmed that the cause of the inoperable EOG does not exist on the remaining EDG".

g,c his test be completed regardless of when the inoperable EDG is restored to OPERAB sk 1 msert

'f the absence of any cawen-cause failure cannot be confirmed, ST. LUCIE - UNIT 2 3/4 8-2 Amendment No. g$ ,

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~ .,gl SURVEILLANCE REgUIREHENTS (Continued)

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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, oM
4. Verifying the diesel starts ambient condition and accelerates to approximately 900 rpm in less than or equal to 10 seconds**. The generator yoltage and frequency shall be 4160 i 420 volts and 60 i 1.2 Hz within 10 seconds after the start signal**. The diesel generator shall be started for this test by using one of the following signals:

a) Hanual/Local.

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.

~rh~ecK N~~ 5. Verifying the generator is s chronized, loaded ** to reater sure than or e ual to 3685 kQ in

~coMweoda+o+ ~ and operates with n a oa and of 3450 to 3685 k least s an additional 60 minutes, and Jg

6. Verifying the diesel generator is aligned to provide standby power to the associated emergency busses.
b. By removing accumulated water:
1. From the engine-mounted fuel tank at least once per '31 days and after each occasion when the diesel is operated for greater than 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br />, and
2. From the storage tank at least once per 31 days.
    • The diesel generator start (10 sec) from ambient conditions shall be per-formed at least once per 184 days in these surveillance tests. All other diesel generator starts for purposes of this surveillance testing may be" preceded by an engine prelube period and may also include warmup procedures f .

~dl (e.g., gradual acceleration) as recommended by the manufacturer so that mechanical stress and wear on the diesel generator is minimized.

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pygmy n~e. e an GOASi8A-e in icate load band s meant as gui ance to avoid routine overloading. Variations in loads in excess of the band due to changing bus loads shall not invalidate this test.

ST. LUCIE - UNIT 2 3/4 8-4 Amendment No. 89-,

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ne ELECTRICAL POWER SYSTEMS ACT(Op (Continued)

d. Witn two of tht: raquirea uffsite A.C. circuits i<<(parable,

-f-em+ng restore ont: of the>>superable cffsite scur ces to OPERABLE status wiini<<24 hours or be in ~t least HOT STANDBY within the <<t=xt 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />. Following rebtot-ation of un'fTsit~ scurce, folluw ACTION Statement a. with the tin(e raquir'em~nt of that ACTION Statement based on tht: time oT initial loss of the remainirsg inopt:rable offsite A.C. circuit.

e. With two of the abvv~ requireo oiese1 generators inoperable, at:n(onstrate the CPERABILITY of two offs>rc A.C. circuit- by periorming Surveillance Reouiremt:<<t 4.8.1.1.1.a withi'n 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> ana at least once per 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> tnerec(TTer; restore one of tne inoPerab l~ diesel gs.cierators to OPERABLE status withs>> 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> or b~ i<< at least HOT STANDBY with1<< 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 />. Following restoraT.ion of one diesel.,genercLtor unit, follow ACTION Statement b.

with the time r~quirement.of that ACTION Statt:m~nt based on the time of initial loss of the remaining inoperabl~ diesel generator.

f. Wstn one Unit 2 startup transformer (2A or 2B) i<<operablt: and.with a UnT t 1 star tup transformer (1A or 1B) connected to the same A or 8 cffsite power circuit and administratively available to botn units, then should L<<st 1 require the use of the startup transformer

&w~-1-lance-Re acministratively avai labl~ to both units, Unit 2 shall derionstl dte the operability of the remaining A.C. sources by performing Surveii lane(=

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. G-h e n-succ

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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 STANDB) 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 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />.

SURVEILLANCE RE UIREMENTS

<.8.1.1.1 Each of the above required independent circuits between the offsite "

transmission network and the onsite Class lE distribution system shall be:

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a. Determined OPERABLE at least once per 7 days by ver ifying correct breaker alignments, indicated power availability; 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.

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4.8.1.1.2 Each diesel generator shall be demonstrated OPERABLE ~

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a. on a STAGGERED TEST BASIS BY:

ST. LUCIE - UNIT 2 3/4 8-3 Amendment No. gals

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'ei e> el g Ie E ECTRICAL POWER SYSTEHS SURVEILLANCE RE UIREHENTS Continued c) Verifying that all automatic diesel generator trips, except engine overspeed and generator differential, are automatically bypassed upon loss of voltage on the emergency bus concurrent with a safety injection actuation signal.

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 />.****

During 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 generator shall be loaded within a load band of 3800 to 3985 kW'nd 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 within a load band of 3450 to 3685 kW'. The generator voltage and frequency shall be 4160 + 420 volts and 60 + 1.2 Hz within 10 seconds after the start signal; the steady-state generator voltage and

'ves-af frequency shall be mai tained within these limit urin this test.

,pN ~rm-Sur vH&~nce-Requmeme m out

8. Verifying that the auto-connected loads to each diesel generator do not exceed the 2000-hour rating of 3935 kW.
9. Verifying that the diesel generator's capability to:

a) Synchronize 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.

.10. Verifying-,that with the:diesej;generator operating",in-.artest'.

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.

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

Variations in load in excess of this band due to changing bus loads shall not invalidate this test.

        • This test may be conducted in accordance with the manufacturer's recommendations concerning engine prelube period.

ST. LUCIE - UNIT 2 3/4 8-7 Amendment Nn. its Pd

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Is e, ELECTR ICAL POWER S YSl MS SURVEILLANCE RE UIREMENTS Continued 12.. Verifying that the automatic load sequence timers are operable with the interval between each load block within

+ l.second of its design interval.

f. 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 approximately

'00 rpm in less than or equal to 10 seconds.

At least once per 10 years by:

1. Draining each fuel oil storage tank, removing the accumulated sediment and cleaning the tank using a sodium hypochlorite solution, and-

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2. Performing a pressure test of those portions of the (pa<

diesel fuel oil system designed to Section III, subsection NO of the ASNE Code at a test pressure equal to 1105 of the system design pressure.

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quaWto~~he-report shaN-be-supplemented-4o i~et-ude-%he nA-44er~aMe~eommended-4a-R &ator -Pos-i-tion-C.

e-1 .%8,Rev+sken<,Augu 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 80% of the ground surface design basis load over the cable ducts by pulling a mandrel with a diameter of at least 80K 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.

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

Variations in load in excess of this band due to changing bus loads shall not invalidate this test.

        • This test may be conducted in accordance with the manufacturer's recommendations concerning engine prelube period.

Performing surveillance Requirement 4.8.1.1.2a.4 within 5 minutes 13.

of shutting down the diesel generator after it has operated within a load band of 3450 kw to 3685 kw'or at least 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> or until operating temperatures have stabilized.

ST. LUCIE - UNIT 2 3/4 8-7a Amendment No.

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TABLE 4.8-1 DIESEL GENERATOR TEST SCHEDULE ygCV (t4>+ used)

Last 20 Valid Tests* Last 100 Valid Tests* ~lt F

<5 At least once pe 31 day

>5 At least on per 7 days

  • Criteria f determining nu er of failures and number of va d tests shall be in ac rdance with Regu atory Position C.2.e of Regulatory de 1.108, Revis n 1, August. 1977, ere the number of tests and failures i de mined on a per dies l generator basis.

This test frequency sh ll bc maintained until seven consecutive failure e demands have been pcr ormed and the number of failures in the last 20 valid cmands-has-been-r-edu ed-4o-one-or 1 ST. LUCIE - UNIT 2 3/4 8-8 Amendment No.

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A.C. SOURCES SHUTOOMH LIMITING 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: MODES 5 and 6.

ACTION:

With less than the above minimum required A.C. electrical power sources OPERABLE, immediately 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 MODE 5 with the reactor coolant loops not filled, or in MODE 6 with the water level less than 23 feet above the reactor vessel flange, immediately initiate corrective action to restore the required sources to OPERABLE status as soon as possible.

SURVEILLANCE RE UIREMENTS 4.8.1.2.1 The above required A.C. electrical power sources shall be demonstrated OPERABLE by the performance of each of the Surveillance Requirements of 4.8.1.1.1 and 4.8.1.1.2 (except for requirement 4.8.1.1.2a.5).

en rne epor e Commission pursuant to Specification 6.9.1. Repor diesel failure uide 1.108, Revision 1, Aug 00 valid tests (on a per nucle he report shall be p

7. If t n ed to ~i lude

's include the information the a reco de n Regulatory u er of failures in the last greater than or equal to 7,

't' information

'nerator ecommend 'gulatory Posi tio W.3.b of Regulatory Guide . evision 1, ST. LUG IE - UNIT 2 3/4 8-9 Amendment No.

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3/4.8 ELECTRICAL POWER SYSTEMS BASES 3/4.8. 1 3/4.8.2 and 3/4.8.3 A.CD SOURCES O.C SOURCES and ONSITE POWER DISTRIBUTION SYSTEMS The OPERABILITY of the A.C. and O.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 O.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 O.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. Th'e A. C. and O.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 Add ec.vJ other information to determine fAT+TAplLg maintenance or other if certain components are out-of-service for reasons. It does not mean to perform the surveillance SSEV-A requirements needed to demonstrate the OPERABILITY of the corn onent.

The OPERABILITY of the minimum specified A.C. and O.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 moniforing 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 Oil Systems for Standby Diesel Generators,"

'evision 1, October '1979, Generic Letter 84-15, 'Proposed Staff Actions to Improve and Maintain Diesel Generator Reliability" dated July 2, 1984, and NRC staff positions reflected in Amendment No. 48 to Facility Operating License No. NPF-7 for North Anna Unit 2, dated April 25, 1985 ST. LUCIE - UNIT 2 8 3/4 8-1 Amendment No.

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St. Lucie Unit 1 and Unit 2 Docket Nos. 50-335 and 50-389 Proposed License Amendments Emergency Diesel Generators; Change to Testin Re uirements er GL 93-05 and 94-01 INSERT - A All EDG inoperabilities must be investigated for common-cause failures regardless of how long the EDG inoperability persists.

When one diesel generator is inoperable, required ACTIONS 3.8.1.1.b and 3.8.1.1.c provide an allowance to avoid unnecessary testing of EDGs. If it can be determined that the cause of the inoperable EDG does not exist on the remaining OPERABLE EDG, then SR 4.8.1.1.2.a.4 does not have to be performed. Eight (8) hours is reasonable to confirm that the OPERABLE EDG is not affected by the same problem as the inoperable EDG. If it cannot otherwise be determined that the cause of the initial inoperable EDG does not exist on the remaining EDG, then satisfactory performance of SR 4.8.1.1.2.a.4 suffices to provide assurance of continued OPERABILITY of that EDG.

If the cause of the initial inoperability exists on the remaining OPERABLE EDG, that EDG would also be declared inoperable upon discovery,, and ACTION 3.8.1.1.e would be entered. Once the failure is repaired (on either EDG), the common-cause failure no longer exists.

INSERT - B g as modif ied by Generic Letter 9 3-05, "Line-Itern Technica l Specifications Improvements to Reduce Surveillance Requirements for Testing During Power Operation," dated September 27, 1993, and Generic Letter 94-01, "Removal of Accelerated Testing and Special Reporting Requirements for Emergency Diesel Generators," dated May 31/ 1994 '

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