ML20207K267

Amends 38 & 27 to Licenses NPF-10 & NPF-15,respectively, Modifying Tech Specs Re Electrical Power Sys

ML20207K267
Person / Time
Site:	San Onofre
Issue date:	11/22/1985
From:	Knighton G Office of Nuclear Reactor Regulation
To:
Shared Package
ML20207K264	List: ML20207K261 ML20207K267 ML20207K270
References
TAC-54708, TAC-54709, TAC-55113, TAC-55114, NUDOCS 8810100305
Download: ML20207K267 (23)

Text

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/ ~%,, UNITED STATES

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l' n NUCLEAR REGULATORY COMMISSION

{ wAsm NG TON, D. C. 20555 l SOUTHERN CALIFORNIA EDISON COMPANY SAN DIEGO GAS AND ELECTRIC COMPANY l

THE CITY OF RIVERSIDE, CALIFORNIA THE CITY OF ANAHEtM. CALIFORNIA  ;

DOCKET N0. 50-361 SAN ON0FRE NUCLEAR GENERATING STATION, UNIT 2 AMENDMENT TO FACILITY OPERATING LICENSE, _

Amendment No. 38 License No NPF-10

1. The Nuclear Regulatory Comission (the Comission) has found tut:

A. The applications for amendment to the license for San Onofre Nuclear Generating Station. Uitit 2 (the facility) filed by the Southern California Edison Company on behalf of itself and San Diego Gas and Electric Company, The City of Riverside and the City of Anaheim, California (licensees) dated January 25, May 23, and August 7, 1984 l and August 20 D85, comply with the standards and requirements of the Atomic Energy Act of 1954, as amended (+he Act) and the Comission's regulations as set forth in 10 CFR Chapter I;

8. The facility will operate in confonnity with the application, as -

I amended, the provisions of the Act, and the regulations of the l Comission; C. There is reasonable assurance: (1)thattheactivitiesauthorized by this amendment can be conducted without endangering the health and safety of the public, and (ii) that such activities will be 7 conducted in complia%e ith the Comission's regulations set forth in 10 CPR Chapter I; D. The issuance of this license amendment will not be inimical to the comon defense and security or to the health and safety.of the public; E. The issuance of this amendment is in accordence with 10 CFR Part 51 of the Commission's regulations and all nptlicable requirements have been satisfied.

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2. Accordingly, the license is amended by changes to the Technical Specifications as indicated in the attachment to this amendment and Paragraph 2.C(2) of Facility Operating License No. NPF-10 is hereby amended to read as follows:

(2) Technical Specifications The Technical Specificatiens contained in Appendix A and the Environmental Protection Plan contained in Appendix B, as revised through Amendment No. 38, are hereby incorporated in the license.

SCE shall 'erato the facility in accordance with the Technical Specifict- rns and the Environmental Protection Plan.

3. This amendment is effective inmediately and 'l3 to be fully implemented within 30 days of the date of issuance.

FOR THE NUCLEAR REGULATORY COMMIS$10N s

deorgeWgsnig on, hi Licensi g Branch No. 3 Division of Licensing

Attachment:

Changes to the Technical Specifications Date of Issuance: NOV 221985 6

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. NOV 2 21985

, ATTACHMENT TO LICENSE AMENDMENT: NO. 38 FACILITY OPERATING LICENSE N0. NPF-10 DOCKET N0. 50-361 Replace the fol) < wing pages of the Appendix A Technical Specifications with the enclosed pages. The revised pages are identified by Amendment number and contain vertical lines indicating the area of change. Also to be replaced are the following overleaf pages to the amended pagts.

Amendment Pages Overleaf Pages 3/4 8-4 3/4 8-3 3/4 8-8 3/4 8-7 3/4 8-8a -

8 3/4 8-2 B 3/4 8-1 8 3/4 8-3 -

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f EtECTRICAL POWER SYSTEM '

SURVElttANCE R!OUIREMENTS (Continued) b.

Demonstrated OPERASLE at least once per 18 months during shutdown by transferring (manually and automatically) unit pcwer supply from the normal circuit to the alternate circuit.

4.8.1.1.2 Each diesel generator shall be demonstrated OPERAPLE:

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

1. Verifying the fuel level in the day 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 day tank, 4 Verifying the diesel sterts from ambient condition and accelerates to at least 900 rpe in less than or ertual to j

10 seconds. The generator voltage and f requency shall be 4360 2 436 volts and 60 2 1.2 H: within 10 seconds after the start signal. The diesel generator shall be started for this test by using the m'anual start signal.

] 5. Verifying the generator is synchronized, Icaded to greater than or equal to 4700 kw in less than or equal to 77 seconds, and operates with a lead greater than or equal to 4700 kw for at least an additional 60 minutes, and i

6. Verifying the diesel generator is aligned to provide stancby power to the associated emergency busses, l b. At least once per 31 days and af ten each operation of the diesel where the period of operation was greater than or equal to I hour by checking for and remeving accumulated water frem the day tank.

c. At least once per 92 cays and f. rom new fuel oil prior to additun to the storage tanks by verifying.that a sample obtained in accordance j

with ASTH-0270-1975 has a water and sediment content of less than or equal to .05 ve' ne percent and a kinematic viscosity 040'C of greater than or qual to 1.9 but less than or equal to 4.1 when tested in accordance with ASTH-0975-77, and an impurity level of less than 2 eg of insolubles per 100 m1, when tested in accordance

, with ASTH-02274-70.

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

1. Subjecting the diesel to an inspection in accordance with procedurespreparedinconjunctionwithitsmanufacturer's reco .9endations for this class of standby service.

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2. Verifying the generator capability to reject a load of creater than or equal to 655.7 kw while maintaiaing soltage at 4360 ; 436 volts and frecuency at 60 + 6,0 H2, SAN ONOFRE-UNIT 2 3/4 6 3

ELECTRICAL POWER SY'$TEMS

$URV!!LLANCE REGUIREMENTS (Continued)

3. Verifying the generator capability to reject a load of 4700 kW without tripping. The generator

• voltage shall not exceed 5450 volts during and following the load rejection.

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

• a) Verifying de-erergization of the emergency busses and Icac '

shedding from the emergency busses.

b) Verifying the diesel stkrts on the auto-start signal, energi7ts the emergency busses with permanently connected loeds within 10 seconds and operates for greater than or equal to 5 minutes while its generator is loaded with the permanently connected loads. Af ter energitation, the steady state voltage and frequency of the emergency busses shall be maintained at 4360 2 436 volts and 60 2 1.2 Hz during this , test.

5. Verifying that on an E5F test signal (without, loss of offrite power) the diesel generator starts on the auto-start signal and operates on standby for greater than or equal to 5 minutes.

The steady state gererator voltage and frequency shall be 4360 2 436 vol'.s and 60 21.2 Hz within 10 seconds af ter the auto-start signal; the generator voltage and fragency shall be maintained within these limits during this test.

6. Deleted.

7. Simulating a loss of offsite power in conjunction with an E!F test signal, and a) Verifying de-energization of the emergency busses and Icac shedding f rom the emergency tusses, b) Verify 1'ng the diesel star,s on the auto-start signal,

. energizes the er.ergency burses vith permanently connected

- loads within 10 seconds, energitts the auto connected '

emergency (accident) loads through the load sequence and operates for greater than or equal to 5 minutes while its generator is loaded with the stargency leads. After

• loading, the steacy state voltage and frequency of the e er;ency busses shall be maintained at 4360 2 436 volts and 60 + 1.2/-0.3 Hz during this test.

SAN CNOFRE-UNIT 2 3/4 8-4 AMENDMENT NO. 38

TABLE 4.8-1 DIESEL GENERATOR TEST 3CHEDULE Number of Failures In Last 100 Valid' Tests.a. Test Frequency

<1 At least once per 31 days 2 At least once per 14 days 3 At least once per 7 days

>4 At least once per 3 days A

Criteria for determining number of failures and number of valid tests shall be in accordance with Regulatory Position C.2.e of Regulatory Guide 1.108 Revision 1. August 1977, where the last 100 tests are determined on a per nucitar unit basis. For the purposes of this test schedule, only valid tests conducted after the Operating License issuance date shall be included in the computation of the "last 100 valid tests". Entry into this test schedule shall be made at the 31 day test frequency.

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SAN Ot.0FRE-UNIT I 3/4 8-7

ELECTRICAL 90tMR E T E

.AC SOURCES SHUT 00wN  :

LIMITING CON 0!TICN FOR OPERATION 3.8.1.2 As a minimum, the following AC electrical power sources shall be OPERA 8LE:

a. One circuit between the offsite transmission network and the onsite i Class 'it distribution system, and

b. One dtittel generator with: -

1. 0iy fuel tanks containing a minimum volume of 325 gallons of fuel,

2. A fuel storage system containing a minimum volume of 37,600 g.illons of fuel, and

3. A fuel transfer pump.' i

, APPLICA8t(ITY: MODES 5 and 6.

ACTION:

with less than the above minimum AC electrical pow *r sources CPERA8t.E, imediately suscend all operations involving CORE At.TERATIONS or positive  ;

reactivity changes aad movement of irradiated fuel, or operation of the fuel 7

! handling machint with loads over the fuel storage pool. In addition, when in 1

MODE 5 with the Reactor Coolant loops not ftiled, or in M002 6 with the water

' level less than 23 feet above the reactor vessel flange, immediately initiate  ;

j corrective action to restore the required sources to OPERA 81.E status as soon 1

as possible, ,

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( SUtv[IllANCE REQUIREMENTS i

The above required circuit betweta. the offstte transmission network  !

4.8.1.2.)

and the onsite Class 1C d,istribution system sha*1 be determined OPERASLE at ,

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f SAN ONOFRE - U.41T 2 3/4 8 8 AMENDMENT NO. 33 l l

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{([cTR! eat P0wCR SYSTEMS r AL_20VeCES (

SHUTOCWN

}URvCfLLANCE REQUIRCMENii_(continued) .' i least once per 7 days by verifying correct breaker alignment and indicated '

power availability. l

a. If the above required offsite source is supplied througn the Unit 3 i 4160 volt teergency Bus #3A04, the following buses are required: *

. t 480 volt Emergency Bus #3804 125 volt Emergency Bus $301 ,

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b. If the above required offsite source is supplied through the Ur.it 3 [

4160 volt Emergency But #3A06, the folinwing buses are required: ,

480 volt Emergency sus #3806 l 125 volt Emergency Bus #302 ,

8.8.1.2.2 The above required diesel generator shall be demonstrated OPERABLE  !

by performing the Surveillance Requirements of 4.8.1.1.2 (except 4.8.1.1.2 a.5. d.5. d.7. d.9. d.10. d.11 and d.13) and 4.8.1.1.3. ,

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SAN Ch0FRE - UN!T 2 3/4 8 88 AMENDMENT NO 3S  !

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El,ECTRICAL POWER SYSTEMS

, 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 O!STRIBUTION SYSTEMS The OPERABILITY of the A.C. and D.C. power sources and associated distri-bution systems during operation easures 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 conditions within the facility. The minimum specified independent and redundant A.C. and 0.C.

' power sources and distribution systerus satisfy the ?equirements of General Design Critoria 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 iagility operation comen-surate with the level of degradation. Tne 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 0.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 0.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 ar additional ACTION requirement to verify that all required systems, subsy.tems, trcins, cceponents and devices, that depend on.the remaining .

OPERABLE diesel generator as a source of emergency power, are also OPERABLE, and that the : tear 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 diese) 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 surveillancc requirements needed to demonstrate the OPERABILITY of the component.

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

1) .he facility can be maintained in the shutdown or refueling condition for extended time periods and 2) suffic-fent instrument.stion and control capabi!ity is available for monitoring and maintaining the unit status.

'7he Surveillance Requirements verify the OPERA 31LITY of the required independent circuits between the offsite transmission network snd the onsite Class,1E distribution system. Two independent circuits are required in Modes 1

~ ~ ~through 4. One source of power is supplied from Unit 2 itself and is noru lly provided through the Reserve Auxiliary Transformers (2XR1 and 2XR2). If the Unit 2 main generator iso phase-bus links are removed, then the Unit Auxiliary Transforcer 2XVI can ce used iti place of 2XR1 and/or 2XR2. The second source of power is provided through the Unit 3 Reserve Auxiliary Transformers (3XR1 and

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3XR2) and/or, with the Unit 3 generator iso phase bus links ramoved, the Unit 3 Unit Auxiliary Transformer (3XU1).

l sun CNOFRT Uu!T 2 8 3/4 8-1 W N y!NT E 3a

ELECTRIC P0wCR SYS7 EMS Ba5ES AC SOURCES. CC SOURCES AND ON$tTE POWER Ol5TRIBUT10N SYSTEMS (continued) ,

The Surveillance Requirements for demonstrating the OPERA 81LITY of the diesel generators are in accordance with the recoteendations of Regulatory Guides 1.9 ' Selection of 01esel Generator Set Capacity for Standby Power Supplies,' March 10, 1971, and 1.108 ' Periodic Testing of Otesel Generator Units Used as Onstte Electric Power Systems at Nuclear Power Plants,'

Revision 1. August 1971, and 1.131, ' Fuel 011 Systems for Standby Olesel Generators.* Revision 1, October 1979. Reg. Guide 1.131 recormends testing et fuel oil sagles in accoreance with ASTM-0210-1915. However, ASTM-0210-1965 was reverifted in 1975 rather than re-issued. The reverifted 1965 standard is therefore the a;proproate standard to be used.

Additionally, Regulatory Guide 1.9 allows loading of the diesel generator to its 2000 hour0.0231 days <br />0.556 hours <br />0.00331 weeks <br />7.61e-4 months <br /> rating in an accident situation. The full load, continuous operation rating for each diesel generator is 4100 kW, while the calculated accident loading in Modes 1 through 4 is 4000 kW. The largest anticipated load (including loads which are required to raitigate the consequences of a design basis accident or facilitate plant operation and A41ntenance) in Modes 5 and 6 is calculated to be less than 80% of the full rated capacity. No 2000 hour0.0231 days <br />0.556 hours <br />0.00331 weeks <br />7.61e-4 months <br /> loading has been specified by the diesel generator manufacturer and, as a result she full loading rating of 4100 kW ts conservatively established as the 2000 hour0.0231 days <br />0.556 hours <br />0.00331 weeks <br />7.61e-4 months <br /> rating. Otesel frequency droop restrictions are established due to HPSI flow rate considerations.

The Surveillance Requirement for demonstrating the OPERASILITY of the Station batteries are based on,the receiveridations of Regulatory Guide 1.119,

' Maintenance Testing and Replacement of Large Lead Storage Batteries fur Nuclear Power Plants,' february 1918, and IEEE Std. 450-1980, 'IEEE Recomended Practice for Maintenance, Testing. and Replacement of I.arge lead Storage Battertes for Generating Stations and Substettons.'

Verifying average electrolyte tencerature above the minimum for which the battery was stred, total battery therm 41 voltage onfloat charge, connection resistance values and the performance of battery service and discharge tests ensures the ef ferttweness'of the charging system, the ahtitty to handle high discharge rates and concares the battery capacity at that We with the rated capacity.

san ONtftf . UNIT 2 8 3/4 6-2 AMENDMENT NO. 38

ELECTRIC POYER SYSTEMS BA$($ ,

A.C $0VRCES. OC SOURCEt AND ONSITE power OfSTRIBUTION 3YST(Mi (continued)

Table 4.8-2 specifies the normal limits for Nach designated pilot cell and each connected cell for electrolyte level, float voltage and specific gravity. The limits for the designated pilot cells float voltage and specific gravity, greater than 2.13 volts and 0.15 below the manuf acturer's fu.11 charge' j specific gravity cr a Dattery charger current that had stab 111 red at a low i value, is characteristic of a charged cell with adequate capacity. The nortul limits for each connected cell for float voltage and specific gravity, greater  ;

than 0.13 volts and not more than .020 below the manuf actuere's full charge specific gravity with an average specific gravity of all the connected cells not more than .010 below the manufacturer's full charge specific gravity, ensures the OPERA 8!LITY and capability cf the battery.

Operation with a tattery cell's parameter outside the normal limit but within the allowable value specified in Table 4.8 2 is permitted for up to

, 7 days. During this 7 day period: (1) the allowable values for eloctrolyte  :

i level ensures no physical damage to the plates with an adequate el h tron transfer capability; (2) the allowable value for the average specific gravity of all the cells, not more than .020 below the manufacturer's recommended full l charge specific gravity, ensures that the decrease in rating will be less than

' the safety margin provided in sizing; (3) the allowable value for an individual

cell's specific gravity, ensures that an individual cell's specific gravity will not be more than .040 below the manufacturer's full charge specific j gravity and that the overall capability of the battery will be maintained l

within an acceptable limit; and (4) the allowable value for an individual 4 cell's float voltage, greater than 2.07 volts, ensures the battery's capability to perform its design function. L 3/4.8.4 ELECTRICAL EQUIPMENT PROTECTIV! DEVICES i

L i Containment electrical penetrations and penetration conductors are protected by either deenergi:ing circuits not required during reactor operation or by demonstrating the OPERABILITY of primary and backup overcurrent protection  ;

circuit breakers during periodic surveillance, t The surveillance requirements applicable to lower voltage circuit breakers l and fuses provides assurance of breaker and fuse reliability by testing at '

least one tepresentative sample of each manufacturers brand of circuit breaker I and/or fuse. Each manufacturer's molded case and metal case circuit breakers and/or fuses are grouped into representative samples which are then tested on a rotating basis to ensure that all breakers and/or fuses ara tested. If a 1

wide variety exists within any manufacturer's brand of circuit breakers and/or tuses it is necessary to divide that manufacturer's breakers and/or fuses into l groups and treat each group as a separate type of breaker or fuses for surveillance purposes.

The thermal overload protection contact integral with the motor starter of each valve listed in Table L8-2 is permanently bypassed in accordance with

Regulatory Guide 1.106 "Thermal Overload Protection for Electric Motors on Motor Operated Valves", November, 1975.

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i SM ONOFRE-UNIT 2 B 3/4 8-3 AMENDME4 ') . 38

[ ELECTRICAL POER SYSTEM SURVEllLANCE I!0UIREMENT5 (Centinued) b.

Demonstrated OPERABLE at least once per 18 months curing shutdown by transferring (manually and autonstically) unit pcwer supply from the normal circuit to the alternate circuit.

4.8.1.1.2 Each diesel generator shall be demonstrated OPERABLE:

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

1. Verifying the fuel level in the day 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 day tank,

4. Verifying the diesel starts frem ambient condition and  ;

accelerates to at least 900 rpm in less than or equal to '

10 seconds. The generator voltage and frequency shall be 4360 2 436 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 the m'anual start signal.

5. Verifying the generator is synchronized, loadeo to greater than or equal to 4700 kw in less than er equal to 77 seconds, and 3 i

operates with a load greater than or equal to 4700 kw for at least an additional 60 minutes, and  !

6. Verifying the diesel generator is aligned to provide stancby po.er to the associated emergency busses.

b. At least once per 31 days and af ten 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 a'; cumulated water from the day tank.

l l C. At least once per 92 days and from new fuel oil prior to addition to l the storage tanks by verifying that a sample obtained in accordance .L

.j with ASTM-0270-1975 has a water and sediment content of less than or  !

4 6 qual to .05 volume percent and a kinematic viscosity 040*C of grester than or equal to 1.9 but less than or equal to 4.1 when l tested in accordance with ASTM-0975-77, and an impurity level of less than 0 eg of insolubles per 100 m), when tested in accordance '

l with ASTM-02274-70.

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

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1. Subjecting the diesel to an inspection in accordance with procedures prepared in conjunction with its manufacturer's l

, rece.?.mendatirns for this class of standby service. j

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2. Verifying the generator capability to reject a load of greater [

than or equal to 655.7 kw while maintaining voltage at '

4360 : 436 volts and frequency at 60 6.0 Hz.

i SAN ONOFRE-UNIT 2 3/4 5 3 >

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UNITED STATES NUCLEAR REGULATORY COMMISSION wasenioN o.c.nosss

%,...../,I SOUTHERN CALIFORNIA EDISON COMPANY SAN DIEGO GAS AND ELECTRIC COMPANY THE CITY OF RIVERSIDE, CALIFORNIA THE CITY OF ANAHEIM, CALIFORNIA DOCKET NO. 50-362 SAN ONOFRE NUCLEAR GENERATING STATION, UNIT 3 AMENDMENT TO FACILITY OPERATING LICENSE Amendment No. 27 License No. NPF-15

1. The Nuclear Regulatory Comission (the Commission) has found that:

A. The applications for amendment to the license for San Onofre Nuclear Generatinn Station, Unit 2 (the f acility) filed by the Southern California Edison Company on behalf of itself and San Diego Ges and Electric Company The City of Riverside and the City of Anaheim, California (licensees) dated January 25 May 23 and August 7,1984 and August 20, 1985, comply with the standards end requiremeats of theAtomicEnergyActof1954,asamended(theAct)andthe Commission's regulations as set forth in 10 CFR Chapter it B. The facility will operate in conformity with the application, as ,

amended, the provisions of the Act, and the regulations of the Comissient C. There is reasonable assu'.'ance: (1) that the activities authorized by this amendment can be conducted without endangering the health and safety of the public, and (11) that such activities will be conducted in compliance with the Comission's regulations set forth in 10 CPR Chapter It D. The issuance of this license amendment will not be inimical to the common defense and security or to the health and safety of the publict

• E. The issuance of this amendment is in accordance with 10 CFR Part 51 of the Comission's regulations and all applicable requirements have been satisfied.

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i- 2. Accordingly, the license is amended by changes to the Tet.hnical Specifications as indicated in the attachment to this amendment and Paragraph 2.C(2) of Facilit amended to read as follows:y Operating License No NPF-15 is hereby i (2) Technical Specifications l' The Technical Specifications contained in Appendix A and the  !

Environmental Protection Plan contained in Appendix B, as revised  !

through Amendment No. 27 are hereby incorporated in the license.  !

SCE shall operate the fl.cility in accordance with the Technical j

$recifications and the Environmental Protection Plan.  ;

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3. This amendment is effective ime11ately and is to be fully implemented within 30 days of the date of issuance. I j '

FOR THE NUCLEAR REGULATORY COMISSION pr - .

eorge nighton, C Licensing Branch No. 3 l j Division of Licensing j

Attachment:

! Changes to the Technical h i Sp?cifications

] De.te of Issuance: NOV 2 21985

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NOV 2 21985 ATTACHMENT TO LICENSE AMENDMENT NO. 27 FACILITY OPERATING LICENSE N0. NPF-15 DOCKET NO. 50-362 Replace the following pages of the Appendix A Technical Specifications with the enclosed pages. The revised pages are identified by Amendment number and contain vertical lines indicating the area of change. Also to be replaced are the following overleaf pages to the amended pages.

Amendment Pages Overleaf Pages 3/4 8-4 3/4 8-3 3/4 8-8 3/4 8-7 3/4 8-8a -

B 3/4 8-2 8 3/4 8-1 8 3/4 8-3 -

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ELECTRICAL POWER SYSTEM SURVEILLANCE REQUIREMENTS (Continued)

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

4.8.1.1.2 Each diesel generator shall be demonstrated OPERABLE:

a. In accordance with the frequency specified in Table 4.8-1 on a STAGGERED TEST 8AS15 by:

1. Verifying the fuel level in the day 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 systefs to the day tank,

4. Verifying the diesel starts from ambient condition and accelerates to at least 900 rpm in less than or equal to 10 seconds. The generator voltage and frequency shall be 4360 1 436 volts and 60 1 1.2 Hz within 10 seconds after the start signal. The diesel generator shall be started for this test by using the manual start signal.

5. Verifying the generator is synchronized, loaded to greater than or equal to 4700 kw in less than or equal to Tl seconds, and operates with a load greater than or equal to 4700 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. At least once per 31 days and af ter 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 day tank.

c. At least once per 92 days and from new fuel oil prior to addition to the storage tanks by verifying that a sample obtained in accordance with ASTM-0270-1975 has a water and sediment content of less than or equal to .05 volume percent a'nd a kinematic viscosity N0*C of greater than or equal to 1.9 but less than or equal to 4.1 when tested in accordance with ASTM-0975-77, and an impurity level of less than 2 su -)f insolubles per 100 ml. when tested in accordance with ASTM-D2274-70.

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

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

( 2. Verifying the generator capability to reject a load of greater

( than or equal to 655.7 kw while maintaining voltage at 4360 1 436 volts and frequency at 60 1 6.0 Hz.

SAN ONOFRE-UNIT 3 3/4 8-3

l ELECTRICAL POER SYSTEMS SURVEILLANCE RE0?!!REMENTS (Continued)

3. Verifying the generator capability to reject a load of 4700 W without tripping. The generator voltage shall not exceed 5450 volts during and following the load rejection.

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

1 a) Verifying de-energization of the energency busses and load i shedding from the emergency busses.

b) Verifying the diesel starts on the auto-start signal, energizes the emergency busses with permanently connected leads within 10 seconds and operates for greater than er equal to 5 minutes dile its generater is leaded with tne per=anently connected leads. Af ter energitation, the steady-state voltage and f requency of the emergency bussas.

shall be taintained at 4360 2 436 volts and 60 2 1.2 Hz during this test.

5.

Verify)ing power the that ongenerator diesel an ESF test signal starts (without on the loss.of autestart of fsite signal and

\ operates on standby for greater than or equal to $~ainutas.

The steady-state generator voltap and frequency ihall be 4360 1 436 volti and 60 21.2 Hz within 10 seconds af ter the auto-start signal; the generator voltage and freqency shall be maintained within these limits during this test.

6. Deleted.

7. Sieulating a loss of of fsite pcwer in conjunction with an ESF test signal, and a) Verifying de-energization of the teerger:y cusses'and 1 cad shed3ing f ree the emergency busses.

l b) Verifying the diesel starts on the auto-start sigval, energi:es the energency busses with permanently csinected loads within 10 seconds, energizes the auto connected emergency (accident) loads through th* load sequence and operates for greater than or equal to 5 minutes while its generator is loaded with the emergency loads, After loading, the steady state voltage and frequency of the emergency busses shall be saintained at 4360 2 436 volts and 60 + 1.2/-0.3 H V'during this test, t

$AN Oh0FRE UNIT 3 3/4 6-4 AMENCMENT NO. 27

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TABtE 4.8-1 f i

+ O!ESEL GENERATOR TEST SCHEDULE  !

I Number of Failures In Last 100 Valid Tests.* Test Frequency 11 At least once per 31 days I f

2 At least once per 14 days j 3 At least once per 7 days  !

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>4 At least once per 3 days j l

"Criteria for determining number of failures and number of valid tests shall I t

be in accordance with Regulatory Position C.2.e of Regulatory Guide 1.108,  !

Revision 1. August l's77, where the last 100 tests are determined on a per i nuclear unit. basis For the purposes of this test schedule, only valid tests I*

conducted after the Operating License issuance date shall be included in the computation of '.he "last 100 valid tests". Entry into this test schedule '

( shall be made it the 31 day test frequency.

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i SAN ONOFRE-UNIT 3 3/4 8-7 l g . I

ELECTRICA't P0wt* SYSTEMS AC 50VaCES SHUT 00WM LIMITINGCONDITiON70ROPERATION ,

3.8.1.2 As a minimum, the following,AC 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: '

l. Day fuel tanks containing a minimum volume of 325 gallons of fuel. *

2. A fuel storage system containing a minimum volume of 37,600 gallons of fuel, and

3. A fuel transfer pump.

APPLICABILITY: MODES 5 and 6.

ACTION:

With less than the above minimum AC electrical power sources OPERABLE, immediately suspend all operations involving CORE ALTERATIONS or positive reactivity changes and movement of irradiated fuel, or operation of the fuel handling machine with loads over the fuel storage pool. 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 sessel flange, tecediately initiate corrective action to restore ,the required sources to OPERABLE status as soon as possible.

a lyRVElllANCE REQUIREMENTS 4.8.1.2.1 The above required circuit between the of f site transmission network and the onsite Class IE distribution system shall be determined OPERA 8LE at i

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SAN ONOFRE - UNIT 3 3/4 8-8 AMENDMENT NO. 27 ,

ELECTA! CAL POWER SYS7 EMS AC SOURCCi

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SHUT 00WN ,

SURVEt(LANCE RE0VIREMENTS (continued) ,

least once per 7 days by verifying co'rrect breaker alignment and indicated power availability,

a. If the above required offsite source 15 supplied through the Unit 2 ,

4160 volt Emergency Bus #2A04, the following buses are required:

480 volt Emergency Out #2804' >

125 volt Emergency Bus #201 l b. If the above required offsite source is supplied through the Unit 2 4160 volt Emergency Bus #2A06, the following buses are required:

480 volt Emergency Bus #2806 125 volt Emergency Bus #202 4.6.1.2.2 The above required diesel generator shall be demonst.Oted OPERABLE l by perf orm'ma the Surveillance Requirements of 4.8.1.1.2 (except 4.8.1.1.2 a.5, d.5, d.7, d.9, d.10, d.11 and d.13) and 4.8.1.1.3.

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SAN ONorRE . UNIT 3 3/4 8 8 a AMENDMENT NO. 27 i l

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1 j 3/4.8 ELECTRICAL POWER SYSTEMS ,

BASES i

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3/4.8.1, 3/4.8.2, and 3/4.8.3 A.C. SOURCES. D.C. SOURCES and ONSITE POWER l DISTRIBUTION SYSTEMS j

The OPERABILITY of the A.C. and D.C. power sources and associated  !

i distribution systems during operation ensures that sufficient power will be l l

j 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-  ;

j

. tions within the facility. The minimum specified independent and redundant j

. A.C. and D.C. power sources and distribution systems satisfy the requirements ,

of General Design Criterion 17 of Appendix "A" to 10 CFR $0.

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j The ACTION requirements specified for the levels of degradaticn of the power sources provide restriction upon continued facility operation commen-surate with the level of degradation. The Op RABILITY of the power sources is j

consistent with the initial condition assumptions of the safety analyses and is based upon maintaining at least one redundant set of onsite A.C. and 0.C.

power sources and associated distribution systems OPERABLE during oc:id e t l conditions coincident with an assumed loss of offsite power and single failure of the other onsite A.C. source. The A.C. and 0.C. source allowable out-of-l 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 verif j subsystems, trains, components .nd devices, y that that, depend all required systems, on the remaining 4

OPERABLE diesel generator as ( ,ource of emergency powei, 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 l the period one of the diesel generators is inoperable. The term verify as 3 used in this context means to administrative 1y check by examining logs or 3 other information to determine if certain components are out of service for

! maintenance or other reasons. It does not mean to perform the surveillance

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requirements needed to demonstrate the OPERABILITY of the component, l

' The OPERABILITY of the minimum specified A.C. and 0.C. power sources and associated distribution systems during sfiutdown and refueling ensures that

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

The Surveillance Requirements verify the OPERABILITY of the required independent circuits between the offsite transmission network and the onsite i Class IE distribution system. Two independent circuits are required in Modes 1 l through 4. One source of power is supplied from Unit 3 itself and is norully j

i provided through the Reserve Auxiliary Transformers (3XR1 and 3XR2). If the Unit 3 main generator iso phase *tus links are removed, then the Unit Auxiliary l Transformer 3XU1 can be used in place of 3XR1 and/or 3XR2. The second source of i

puwer is proeided through the Unit 2 Reserve Auxiliary Transformers (2XR1 and

{ 2XR2) and/or, with the Unit 2 generator iso phase bus links removed, the Unit 2 i Unit Auxiliary Transformer (2XU1).

SAN ONOFRE-UNIT 3 8 3/4 8-1 IJtECMENT NO. 23 4 -

/ EtrCTRIC' power SYSTEMS j uns -

AC SOURCES. DC SOURCES AND ONSITE PO'wER OISTRIBUTION SYSTEMS (continued) i The Surveillance Requirements for demonstrating the OPERABILITY of the diesel generators are in accordance with the recomendations of Regulatory Guides 1.9 ' Selection of 01esel Generator Set Capacity for Standby Power Supplies,' March 10,1971, and 1.108 ' Periodic Testing of Diesel Generator Units Used as Onsite Electric Power Systtml at Nuclear Power Plants,'

Revision 1 August 1977, and 1.137, ' fuel 011 Systems for Standby Diesel Generators,' Revision 1, October 19,79. Reg. Guide 1.137 recomends testing of fuel oil samples in accordance with ASTM-0270-1975. However ASTM-0270-1965 was reverified in 1975 rather than re-issued. The reverified 1965 standard is therefore the approproate standard to be used. l Additionally, Negulatory Guide.l.9 allows loading of the diesel generator to its 2000 hour0.0231 days <br />0.556 hours <br />0.00331 weeks <br />7.61e-4 months <br /> rating in an acetdent situation. The full lead, continuous  ;

operation rating for each diesel generator is 4700 kW, while the calculated '

accident loading in Modes 1 through 4 is 4000 kW. The largest anticipated  :

load (including loads which are required to mitigate the consequences of a design basis accident or facilitate plant operation and maintenance) in Modes 5 and 6 is calculated to be less than 80% of the full rated capacity. No ,

2000 hour0.0231 days <br />0.556 hours <br />0.00331 weeks <br />7.61e-4 months <br /> loading has been specified by the diesel generator manufacturer and.  ;

as a result the full leading rating of 4700 kW is conservatively estabitshed as the 2000 hour0.0231 days <br />0.556 hours <br />0.00331 weeks <br />7.61e-4 months <br /> rating. 01esel frequency droop restrictions are estabitshed due to HPS! flow rate considerations.

The St.rveillance Requirement for dett.onstrating the OPERASILITY of the Station batteries are based on the recomendations of Regulatory Guide 1.129,

' Maintenance Testing and Replacement of Large Lead Storage Batteries for i

! Nuclear Power Plants,' february 1978, and IEEE Std. 450-1980, 'IEEE

' l Recomended Practice for Maintenance, Testing, and Replacement of Large lead  ;

Storage Batteries for Gene, rating Stations and Substations.' i i .

Verifying average electrolyte termerature above the minimuts for which the I i

battery was stred, tctal battery thermal voltage onfloat charge, connection j resistance values and tNe performance of battery service and discharge tests J ensures the effectiveness of the charging system, the ability to handle high J

discharge rates and compares the battery capacity at that time with the rated l capacity, j

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SAN ON0FRE . UNIT 3 8 3/4 8-2 AMENDMENT NO. 27 l

O Et!CTRIC PCWER SYSTEMS 8ASES AC SOURCES. OC SOURCES AND ONSITE POWrR Of STRIBUTION SYSTEMS (continued)

Table 4.8 2 specifies the normal limits for each designated pilot cell and each connected cell for electrolyte level, float voltage and spectfte gravity. The limits for tha designated pilot cells float voltage and specifte gravity, greater than 2.13 volts and 0.15 belcw the manuf acturer's full charge specific gravity or a battery charger current that had stabilized at a low value, is characteristic of a charged cell with adequate capacity. The normal limits for each connected celi for float voltage and specific gravity, greater than 2.13 volts and not more than .020 below the manuf actuere's full charge '

specific gravity with an average specific gravity of all the connected cells

. not more than .010 below the manufacturer's full charge specific gravity, ensures the OPERABILITY and capability of the battery.

Operation with a battery cell's parameter outside the normal limit but within the allowable value epecified in Table 4.8-2 is permitted for up to 7 days. During this 7-day period: (1) the allowable values for electrolyte level ensure no physical damage to the plates with an adequate electron transfer capability; (2) the allowable value for the average specific gravity of all the cells, not more than .020 below the manufacturer's recommended full charge specific gravity, ensures that the decrease in rating will be less than the safety margin provided in sizing; (3) the allowable value for an individual cell's specific gravity, ensures that an individual cell's specific gravity will not be more than .040 below the manufacturer's full charge specific gravity and that the overall capability of the battery will be maintained within an accept ble limit; and (4) the allowable value for an individual cell's float voltage, greater than 2,07 volts, ensures the battery's capability to perform its oesign function. ,

3/4.8.4 ELECTRICAL EQUIPMENT PROTECTIVE DEVICES Containment electrical penetrations and penetration conductors are protected by either deenergizing circuits not required during reactor operation or by demonstrating the OPERABILITY of primary and backup overcurrent protection circuit breakers during periodic surveillance.

The surveillance requirements app 1fcable to lower voltage circuit breakers and fuses provide assurance of breaker and fuse reliability by testing at least one representative sample of each manufacturer's brand of circuit breaker and/or fuse. Each manufacturer's molded case and metal case circuit breakers and/or fuses are grouped into representative samples which are then tested on a rotating basis to ensure that all breakers and/or fuses are tested. If a wide variety exists within any manufacturer's brand of circuit breakers and/or fuses it is necessary to divide that manufacturer's breakers and/or fuses into groups and treat each group as a separate type of breaker or fuse for surveillance purposes. ,

The thermal overload protection contact integral with the motor starter of each valve listed in Table 3.8-2 is permanently bypassed in accordance with Regulatory Guide 1.106 "Thermal Overload Protection for Electric Hotors on Motor Operated Valves", November,'1975.

SAN ONOFRE-UNIT 3 8 3/4 8-3 AMENDMENT NO. 27