ML20204H408

Proposed Tech Specs,Relocating TS 3.8.3.1,3.8.3.2,3.8.3.3 & Associated Bases Associated with Electrical Equipment Protective Devices to Technical Requirements Manual

ML20204H408
Person / Time
Site:	Sequoyah
Issue date:	03/19/1999
From:	TENNESSEE VALLEY AUTHORITY
To:
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ML20204H406	List: ML20204H399 ML20204H408
References
NUDOCS 9903290070
Download: ML20204H408 (30)

Text

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. l ENCLOSURE 2 TENNESSEE VALLEY AUTHORITY SEQUOYAH PLANT (SQN)

UNITS 1 AND 2 PROPOSED TECHNICAL SPECIFICATION (TS) CHANGE 99-01 MARKED PAGES I. AFFECTED PAGE LIST Unit 1 Index Page IX Index Page X 3/4 8-15 3/4 8-16 3/4 8-17 3/4 8-20 B 3/4 8-2 B 3/4 8-3 Unit 2 Index Page X 3/4 8-16 3/4 8-17 3/4 8-18 3/4 8-21 B 3/4 8-2 B 3/4 8-3 II. MARKED PAGES See attached.

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9903290070 990319 PDR ADOCK 05000327 P PDR _

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i

^ INDEX

,w.- IN!)

gggy LIMITING CONDITIONS FOR OPERATION AND SURVEILLANCE REQUIREMENTS

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~ PAGf SECTION 1 3/4.7.5 ULTIMATE HEAT SINK ................... 3/4 7-l'4 -

3/4.7.6 FLOOD PROTECTION .................... 3/4 7-15 R65 3/4.7.7 CONTROL ROOM EMERGENCY VENTILATION SYSTEM . . . . . . . 3/4 7-17 3/4.7.8 AUXILIARY BUILDING GAS TREATMENT SYSTEM . . . . . . . . . 3/4 7-19 1 3/4.7.9 SNUBBERS (DELETED) ................... 3/4 7-21 lR239 3/4.7.10 SEALED SOURCE CONTAMINATION . . . . . . . . . . . . . . . 3/4 7-29 l

. 3/4.7.11 . FIRE SUPPRESSION SYSTEMS (DELETED) . . . . . . . . . . .. 3/4 7-31 ,

R231 3/4.7.12 FIRE BARRIER PENETRATIONS (DELETED) . . . . . . . . . 3/4 7-41

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3/4.8 ELECTRICAL POWER SYSTEMS R65-3 /4 . 8.1 .A.C. SOURCES r~ ~ - - OPERATING . . . . . . . . . . . . . . . . . . . . . . . . 3/4 8-1 SHUTDOWN . . . . ........ . . . . . . . . . . . . 3/4 8-8 E 3/4.8.2 ONSITE POWER DISTRIBUTION SYSTEMS A.C. DISTRIBUTION - OPERATING . . . . . . . . . . . . . . . 3/4 8-9 A.C. DISTRIBUTION - SHUTDOWN . . . . . . . . . . . . . . 3/4 8-10 l l

D.C. DISTRIBUTION - OPERATING . . . . . . . . . . . . . .

344.0-11  !

D.C. DISTRIBUTION - SHUTDOWN . . . . . . . . . .s . . . . 3/4 8-14 3/4.8.3 ELECTRICAL EQUIPMENT PROTECTIVE  %

DEVICES . x  !

=

CONTAINM M- UUTETRATION CONDUCTOR OVERCURRE:C PROTECTIVE 3/4 8-1s DEVICES . . [. M4 E r40 ) . . . . . . . . . . . . . . .

\ ...

s August 28, 1998 IX Amendment No. 61, 227, 235 SEQUOYAH - UNIT 1.

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INDEX LIMITING CONDITIONS FOR OPERATION AND SURVEILLANCE REQUIREMENTS

. ,\ , , \, . . \ \ , , . .

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SECTION 2.h9_4

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MOTOR OPERATED VALVES THERMAL OVERLOAD PROTECTION R217@ RED -

ISOLATION DEvICEi d ve w e e-. . . . . . --. . . . . . .

3/4 8 3 i

1 3/4.9 REFUELING OPERATIONS '. .

i l

3/4.9 1 BORON _CONCENTRATIONj. . . . . . . . . . . . . . . . . . . 3/4 9-1 3/4.9-2 3/4.9.2 INSTRU M TAT. ION . . . . . . . . . . . . . . . . . . . . .

3/4 9.3 DECAY TIME,.. . jl*. . . . . . . . . . . . . . . . . . . 3/4 9-3

- 3'/4. 9. 4 CONTAINMENT BUILDING' PENETRATIONS . . . . . . . . . . . . . 3/4 9-4 3/4.9.5 COMMUNICATIONS .  ; . . . . . . . . . . . . . . . . . . . . 3/4 9-5

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3/4.9.6 MANIPULATOR CRANE . . . . . . . . . . . . . . . . . . . . .

3/4 9-6 3/4.9.7 CRANE TRAVEL - SidNT FUEL PI*' AREA (DELETED) . . . . . . . 3/4 9-7 'lR208' 3/4.9.8-RESIDUAL HEAT REMOVAL AND COOLANT CIRCULATION <

0

. ALL WATER LEVELS

. . . . . . . . . . . . . . . . . . . . . 3/4 9-8 w s LOW WATER LEVEL . . . . . . . . . . . . . . . . . . . . 3/4 9-Ba *g) 3/4.9.9 CONTAINMENT VENTILATION ISOLATION SYSTEM . . . . . . . . . 3/4 9-9 3/4.9.10 WATER LEVEL . REACTOR VESSEL . . . . . . . . . . . . . . 3/4'9.10 - i i

_ 3/4.9.11 SPENT FUEL PIT WATER LEVEL . . . . . . . . . . . . . . . 3/4 9-11 3/4.9.12 AUXILIARY BUILDING GAS TREATMENT SYSTEM . . . . . . . . . 3/4 9-12 3/4.10 SPECIAL TEST EXCEPTIONS 3/4.10.1 SHUTDOWN MAltGIN . . . . . . . . . . . . . . . . . . . . . 3/4 10-1 GROUP HEIGHT, INSER'T ION AND POWER DISTRIBUTION LIMITS . . 3/4 10-2 3/4.10.2

. '. . . . . . . . . . . . . . . . 3/4 10-3 3/4.10.3 PHYSICS TES'TS . . . . .

REACTOR COOLANT LOOPS . . . . . . . . . . . . . . . . . 3/4 10-4 3/4.10.4 POSITION INDICATION. SYSTEM - SHUTDOWN . . . ... . . . 3/4 10-5 3/4.10.5 4

s October A- 1995 X Amen 6,ent No. 61, 204, 213 SEQUOYAH - UNIT 1 ,

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ELECTRICAL POWER SYSTEMS

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3 /4. 8.3 ELECTRICAL EOUIPMENT PROTECTIVE DEVICES CONTAINMENT PENETRATION CONDUCTOR OVERCURRENT PROTECTIVE DEVICES LIMITING CONDITION FOR OPERATION- - R207 Thus _ spec, fees %e is deleted 3.8 3.1 Pri :ry :nd B2 kup cent?!9ent ?:nctr:tien :;nduct r ever:;rrent gret;;tive devi::: 2 re 12ted "ith each cent:f rm:nt :1 :tri::1 p;actr:ti:n cir;;it shall b; OPE"f3LE. The scepe ef there protectiv: devi::: :xclud:: th::: circuit:

clectric:1 pon tr: tion

{(. f;r chichr: credible design M f: Ult cur"e"ts."culd not ext::d th: -

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

ACTION:

R207 With one or more of the containment penetration conductor overcurrent protec ve I

devices inoperable:

a. Restore the protective device (s) to OPERABLE status or de-e rgize the circuit (s) by tripping the associated backup circuit bre r within 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> and verify the backup circuit breaker to be tr' ped at least once per 7 days thereafter; the provisions of Specif ation 3.0.4 are not _ applicable to overcurrent devices in circuits ich have their O . backup circuit breakers tripped, or

b. le hours and in COLD SHUTDOWN

_w ithin the-following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />.BeinatleastHOTSTANDBYwithinthej\

/ .

SURVEILLANCE REOUIREMENTS P _

R207 A

4.8.3.1 All containment penetratioA uctor overcurrent protective devices l shall be demonstrated OPERABLE:

a. At least once p.er 18 ths:

1. For at least ne 6.9 kV reactor coolant pump circuit, such tfiat all reactor c ant pump circuits are demonstrated OPERABLE at least once pe 2 months, by performance of:

-~

(a A CilANNEL CALIBRATION of the associated protective relays --

specified in appropriate plant instructions, and lRil4 (b) An integrated system functional test which includes simulated automatic. actuation of the system and verifying that each relay.and associated circuit breakers and control circuits function as designed,

_ . R114

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June 13, 1995 Amendment No. 42, ~ 10, 203 SEQUOYAH - UNIT 1 3/4 8-15 a: /

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4 ELECTRICAL POWER SYSTEM _5 )

SURVEILLANCE REOUIREMENTS (Continued)

For each circuit breaker found inoperable during these functi al R46 ~

(c) e tests, an additional representative sample of at-least 1 of circuit breakers of the inoperable type shall also be func onally R114 tested until no more failures are found or al) circuit br akers of i that type have' been functionally tested.

2. By selecting and functionally tes_ ting a representative sa le Circuit of at

~

least 10% of each type.of lower voltage circuit breakere. Rii4 breakers selected for functional testing shall be sele aedcurrent on a rotating input basis. The functional test shall consist of injecti waks r and verifying at the, specified setpoint to each selected circuit that each circuit breaker functions as designed. 'ircuit Sreakers found inoperable during functional testing shall be re cred to OKRABLE status prior to resuming operation. For each ditional rcuit breaker found inoperable during these functional tasts an representative sample of at least 10% of all the circuit b akers of the-inoperable type shall also be functionaily tested un no more failures are found.

~-

or all circuit breakers of that type hav been functionally tested.

glia 3 .' By selecting and verifying a rep 6en ative sample of each type of fuse on a rotating basis. Verifiert V 11 be accomplished as described by SR 4.8.3.1.a.3.a. Each repres ive sample of fuses shall include at R2r P '

least 10% of all fuses of t e. Fuses found inoperable during l verification shall be replea ith OPERABLE fuses prior to resuming operation. For each fuse bu inoperable during verification, an ,

additional. representative s ple of at.least 10% of all fuses of that l l

. type shall.be functionally ested until no more. failures'are found or all fuses of that type' h e been functionally tested. ~  ;

l (a) A fuse verificat n and maintenance program will be maintained to R114 ensure that:

1.. Theproersizeandtypeoffuseisinstbled,

2. The use shows no sign of deterioration, and _

3. T e fuse connections are tight and clean.

Z At least- onc per 60 months by subjecting each circuit breaker to an R207 b.

inspection d preventive maintenance in accordance with procedures prepared

.in conjun ion with manufacturer's recommendations. l June 13, 1995 . e;)

Amendment No. 42, 110, 203 SEQUOYAH - UNIT 1 3/4 8-16

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N ELECTRICAL POWER SYSTEMS R37 Q) HOTOR OPERATED VALVES THERMAL OVERLOAD PROTECTION .

LIMITING CONDITION FOR_0PERATION TI,;c spu.f.ce%n is d efa f# d..

3.8.3.2 The ther 21 ever10 d protectier devic :, int grd with th; m t:r :t:rtcr, R207 g ea= = e m e in = fety m t = :hel u = = . i APPLICABILITY: Whenever the motor operated valve is required to be OPERABLE.

ACTION:

With one or more of the thermal evericad protection devices inoperable eclare v,3

~

7 the affected val-ve(s) inoperable and apply, the ACTION. Statement to affected valve (s) .

, /,

_SURVEILLANLE REQUIREMENTS rotection devices shall be g37

'4.8.3.2 The above required thermal  ;

demonstrated OPERABLE:

a. At least once per 18 mont y the performance of a CHANNEL CALIBRATION of of at least 25% of all thermal overload devices a representative same ~

l ed, such that each non-bypassed device is calibrated at OkJ which are not by 1 east once pe years.

i once per 18 months, by the performance of'a CHANNEL FUNCTIONAL R132

b. At le T of the bypass circuitry for those thermal overload devices l ich are normally in force during plant operation and bypassed under accident conditions. _ y 1 ,

June 13, 1995 Amendment No. 33, 80, 128, 203 SEQUOYAH - UNIT 1 3/4 8-17

-- -. .. . - - .~ - .--. - . - . - - -

3 p -

Q (G

^: ELECTRICAL POWER SYSTEMS l s..A I ISOLATION DE" ICES l f

LIMITING CONDITION FOR OPERATION

},o's S tec. N a $ N., os ke le he 3.8.3.3 All cir)cuit breaktr :tuated by fault currents that are uccd 2 isolation de.ic : protecting IE bu :c frcr. non qualified leads shall bc l

QFERACLE.

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

ACTION: '

With one or.more of the above required circuit breakers inoperable either:

ithin

a. Restore the inoperable circuit breaker (s) to'0PERABLE status  !

l 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br />, or

b. Trip the inoperable circuit breaker (s), rack-out the c' cuit breaker (s) --

within 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> and verify the circuit breaker (s) to e racked.out at least once per 7 days thereafter; the provisions Specification l 3.0.4 are not applicable to racked-out circuit eakers, or

c. Be in at least HOT STANDBY-within t pext hours and in COLD i l

rig SHUTDOWN within the following 30 f(/

SURVEILLANCE REQUIREMENTS r u/

4.8'.3.3 Each of the above required rcuit' breakers shall be demonstrated OPERABLE:

a. At least once per 1 months by selecting and functionally testing a e of at least 10% of each type of circuit breaker.

representative saselected for functional testing shall be selected Circuit breaksr

_en a rotatin asis. The functional test shall consist of injecting a current ' put at the specified setpoint to each selected circuit  !

breaker ' relay and verifying that each circuit breaker functions ac design .

For each device foyn_d inoperable during these functional Test , an additional representative sample of at least 10% of each ov r current protection device of the inoperable type chall also e func,tionally tested until no more failures are found or all devices of that type have been functionally tested.

b. At least once per 60 months by subjecting each circuit breaker to an- ,

1

- inspection and~ preventive maintenance in accordance with procedur~es.

prepared in conjunction with its manufacturer's recommendations.

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V R84 Amendment No. 61, 80 3/4 8-20 SEQUOYAH - UNIT 1 August 16, 1988

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ELECTRICAL POWdR SYSTEMS ,

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MMOW)

K- BASES A.C. SOURCES AND ONSITE-POWER DISTRIBUTION SYSTEMS (Continued) i Verifying average electrolyte temperature above the minimum for which the I battery was sized, total battery terminal voltage onfloat charge, connection resistance values and the performance of battery service and discharge tests. l ensures the effectiveness of the charging system, the ability to handle high discharge rates and compares the. battery capacity at that time with the rated-capacity. R16 Table 4.8-2 specifies the normal limits for each 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 i gravity, greater than 2.13 volts and .015 below the manufacturer'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 cell for float voltage and specific gravity, greater than 2.13 volts and not more than .020 below the manufacturer's full charge specific gravity with an average specific gravity of all the connected cells ,

not more than .010 below the manufacture d 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 specified in Table 4.8-2 is permitted for up to 7

/p,~ days. During this 7 day period: (1) the allowable values for electrolyte 1

level ensures 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 acceptable 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 design function.

3/4.8.3 ELECTRICAL EQUIPMENT PROTECTIVE DEVICES ,

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2.

- . ~ .1.L~P. . .~! T!2. 1.

. -r ' L. &. %. .W. . . . . .=. .z c ... -. .~ . . w . . . - a . - + - ~. c----

.~ . ~ -

- - y by either de-energizing circuits not required during reactov. operation or b ~

demonstrating the OPERABILITY of primary and backup overcurrent prote circuit breakers during periodic surveillance.

The surveillance requirements appli:able to lower age circuit breakers and fuses provides assurance of akar4 fus 1 ability by testing at least one representative sample aa :8.n cturers brand of circuit breaker and/or fuse. Each manufacturer' case and metal case circuit breakers and/or fuses are grouped into resentative samples which are then testad on a rotating basis to en hat all breakers and/or fuses are tested. If a

/N wide variety exi ithin any manufacturer's brand of circuit breakers and/or fuses, it ~ ecessary to divide that manuf acturer's breakers and/or fuses 1 N int ups and treat each group as a separate type of breaker of fuses for urveillance purposes.

R141 B 3/4 8-2 Amendment No. 12,137 SEQUOYAH - UNIT 1 April 27, 1990 W

. . - . - . . - . = - . . =- -. _ - --

... . I ELECTRICAL POWER SYSTEMS s% .

s .,

BASES

, l

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ELECTRICAL EQUIPMENT PROTECTIVE DEVICES (Continued) l The OPERABILITY of the motor operated valves thermal over protection R37 ensures that the thermal overload protection vices will prevent safety

! related valves from performing their func "fr The veillance Requirements

, for demonstrating:the OPERABILITY he d are in accordance with ~

" Regulatory Guide 1.106 " Thermal 0'e 4 ection for Electric Motors on Motor.0perated Valves", Revision :L ch 1977.

ed by fault currents are used as isolation devices

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Circuit breakers ac in this plant. Th ABILITY of these circuit breakers ensures that the 1E busses.will b otected in the event of faults in nonqualified loads powered j by the b s. ' l

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m e Na./ I t

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i R141 g 2/4 g.2 amendment No. 33,137 cenonvau

~ ~ ' ' ' ' ' ' - UNIT 1^ April 27, 1990

A V

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M LIMITING CONDITIONS FOR OPERATION AND SURVEILLANCE RE0VIREMENTS l

SECTION _ _ _ MEE _ i

. 3/4.8.3 ELECTRICAL EQUIPMENT PROTECTIVE DEVICES _ _

7 Containment Penetration Conductor Overcurrent Protective De v i c e s . . .( AK4 6J64.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3/4 8-16 _ i R203 1 Motor Operated Valves Thermal Overload Protection [f44J.M) 3/4.8-18 Isol ati on oeviies . .C?K4 6.WA.). . . . . . . . . . . . . . . . . . . . . . . 3/4 . gg-:-

i

. 8 ,21 3/4.9 REFUELING OPERATIONS 3/4.9.1 BORON CONCENTRATION..............'......................... 3/4 9-1 3/4.9.2 INSTRUMENTATION..........................................T 3/4 9-3" ~

3/4.9.3 DECAY TIME.'............................................. 3/t 9-t i

3/4.9.4 CONTAINMENT BUILDING PENETRATIONS. . . . . . . . . . . . . . . . . . . . . . . . . -

. 3/4 9-5 l i

. . . . \

3/4.9.5 COMMUNIC *TIONS............................................ ~3/* 9-6 3/4.9.6 MANIPULATOR CRANE......................................... 3/4 9-7' R1 3/4.9.7 CRANE TRAVEL .- SPENT , FUEL PIT ' AREA (DELETED) . . . . . . . . . . . . . . 3/4 9-8 3/4.9.8 RESIDUAL HEAT REMOVAL AND COOLANT CIRCULATION Al l W at e r L ev el s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3/4'9-9 Low W at e r Lev el . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3/4 9-10 3/4.9.9 CONTAINMENT VENTILATION ISOLATION SYSTEM. . . . . . . . .3/4 . . .9-11 3/4.9.10 WATER LEVEL ; REACTOP. VESSEL.............................. 3/4 9-12

• PIT...........................,.. 3/4 9-13

. 3/4.9.11 WATER LEVEL - SPENT FUEL 3/4 9-14 3/4 9.1? AUXILIARY BUILDING CAS . TREATMENT SYSTEM. . . . . . . . . . . . . . . . . . .

3/4.10 SPECIAL TEST EXCEPTION]

MARGIN......,............................,....... 3/4 10-1 3/4.10.1 SHUTDOWH 3/4 10-2

, 3/4.10.2 GRGUP HEIGHT, INSERTION AND POWER DISTRIBUTION LIMITS.....

3/4 10-3 3/4.10.3 PHYSICS TESTS..............................................

I October 4, 1995

'X

. Aa: ends:ent Ho. 53,194, 203 SEQUOYAH - UNIT 2

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ELECTRICAL POWER SYSTEMS '

T.

3 /4. 8. 3 ELECTRICAL E0VIPMENT PROTECTIVE DEVICES CONTAINMENT PENETRATION CONDUCTOR OVERCURRENT PROTECTIVE DEVICES LIMITING CONDITION FOR OPERATION f I 4.o5 1r ke.festab., is deletent T 3.8.3.1  %:ry }and Mck"; cent 2iment penetr: tion conductor evercurrent 193 protective deoice arreciated uitS each cent:hm:nt clectrical pcactr: tion circuit -

shcil bc OPEPf2LE. The :: p: ef the: protective devices excludes thosc circuits I

f:r which credible f: ult current: ':: uld not excccd the cicctrical penetration

((de:Hnr: ting.

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

ACTION:

_. With one or more of the containment penetration conductor overcurrent pro ctive R15 3 devices inoperable: -

l

a. Restore the protective device (s) to OPERABLE status or d energize-the circuit (s) by tripping the associated backup circuit b aker within l 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> and verify the backup circuit breaker to ba ripped at least i once per 7 days thereafter; the provisions of Spe

• ication 3.0.4 are ..

not applicable to overcurrent devices in circui which have their backup circuit breakers tripped, or '

b. Be in at least HOT STANDBY within the ne 6hoursan'"inCOLDSHUTDOWN d

within the following 3'O hours. .

N

~

SURVEILLANCE RE0VIREMENTS 4.8.3.1 All containment penetration R193 ductor overcurrent protective devices shall be demonstrated OPERABLE: <, l '

a. At least once per 1 months:

1. For at le one 6.9 kV reactor coolant pump circuit, such that all reactor colant pump circuits are demonstrated OPERABLE at least ,

once r 72 months, by performance ~ of: - '

A CHANNEL CALIBRATION ~of tne associated protective relays gio) specified in appropriate plant instructions, and (b) An integrated system functional test which includes simulated automatic actuation of.the system and ver_ifying that each .

relay and associated circuit breakers and control circuits alco function as designed.

' ier Q$

June 13, 1995

.SEQUOYAH - UNIT 2 3/4 6-16 Amendment No. 34, 100, 193

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O ELECTRICAL POWER SYSTEMS

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-SURVEILLANCE REQUIREMENTS (Continued) l (c) For each circuit breaker found inoperable during these functi nal tests, an additional representative sample of at least 1 of he circuit breakers of the inoperable type shall also be fun ionally tested u'ntil no more failures are found or all circuit b akers of that type have been functionally tested.

R100 l

2. _By selecting and functionally testing a representative s ple of at least 10% of each type of. lower voltage circuit breaker . Circuit breakers selected for functional testing shall be sel ted on a rotating, basis. The functional test shall consist of inject g a current input R100 at the.specified setpoint to each selected circuit reaker and verifying that each circuit breaker functions as design ~sd. Circuit breakers found inoperable during functional testing shall be r stored to OPERABLE status prior to resuming operation. For each circuit breaker found inoperable during these functional ests an dditional representative sample of at least 10% of all the cuit reakers of the inoperable type shall also be functionally t s u il no.more failures are found.

or all circuit breakers of that .yh h e been functionally tested.

3.- Byselectingandverifyingj/ p eswill tative sample of each type of fuse be accomplished as described by on a rotating basis. Ve o

- R193 4 SR 4.8.3.1;a.3.a. Each en tive sample of fuses shall include at (J least 10% of all fuses of at ype. Fuses found inoperable during l verification shall be replace with OPEPABLE fuses prior to resuming gloo operation. For each fuse f nd inoperable during verification, an

cdditional r.epresentative ample of at least 10% of all fuses of that type shall be functional tested until no more failures are found or all fuses of-that type ave been functionally tested- _

(a) A fuse verific ion and maintenance program will be maintained to gloo ensure that:

1. The oper size and type of fuse is instilled, T fuse shows no sign of deterioration, and

3. The fuse connections are tight and clean.

- b. . At least o ce per 60 months byTubjecting each circuit breaker to an .R193 inspecti and preventive maintenance in accordance with procedures prepared in cos nction with manufacturer's recommendations.

0 Jute 13, 1995 3/4 8-17 Amendment No. 34, 100, 193 SEQUOYAH - UNIT 2

O O -

I ELECTRICAL POWER SYSTEMS m

.)

MOTOR OPERATED VALVES THERMAL OVERLGAD PROTECTION l

LIMITING CONDITION FOR OPERATION , f /

74 ,k p , f q -ftpn ;p de/eteofprc.ccti:n device:, integrhl wi h th: : ter :t:rter, R193  ;

3.8.3.2 The ths, ...:1 Over. t c." ::ch v:lve : d in ::fety cyttom: :h:ll be Optr,AOLt. l ]

APPLICABILITY: Whenever the motor operated valve is required to be OPERABLE. i l

ACTION:

With one or more of the thermal overload protection devices inoperable eclare R25 i the affected val.ve(s) inoperable and apply. the ACTION Statement to affected valve (s) . l SURVEILLANCE RE00TREMENTS _

[h i.

R25 4.8.3.2 The above required thermal ye protection devices shall be I demonstrated OPERABLE:

a. t least once per 18 mont y the performance of a CHANNEL CALIBRATION of.

• a representative sampl f at least 25% of all thermal overload devices  !

which are not bypase , such that each non-bypassed device is calibrated at i least once per ears. . c.

Rll5 i

b. At least ce per 18 months, by the performance of a CHANNEL FUNCTIONAL TEST the bypass circuitry for those thermal overload devices which are i Z n . ally in force during plant operation'and bypassed under accident onditions.

, l 1f l

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^

June 13, 1995 , l 3/4 8-18 Amendment No. 25,71,115, 193 SEQUOYAH - UNIT 2 i

. t'3 U O i l

i

'~' ELECTRICAL. POWER SYSTEMS l

! ISOLATION DEVICES _

I 1

LIMITING CONDITION FOR OPERATION i

$$' . fee hD-, /$ hh \

)

3.8.3.3 All cirait bre hcr: Octu ted by fault currents th:t are a :d 2:

sol;ticr. dedcc3 pr;t;; ting IE busses fronr riciie c lificJ 104 shell bc

( OPE l1AOLE.

APPLICABILITY _: MODES 1, 2, 3 and 4. i ACTION: .

With one or more of the above required circuit breakers inoperable either:

a- Restore the inoperable circuit breaker (s) to OPERABLE status thin ,

)

8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br />, or i l

b. Trip the inoperable circuit breaker (s), rack-out-the c' cuit breaker (s) '

within 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> and verify the circuit breaker (s) to racked out at least once per 7 days thereafter; the provisions o Specification 3.0.4 are not applicable to racked-out circuit breaker , or _

p~n i f c. Be in at least HOT STANDBY within the next ours and in COLD i

' SHUTDOWN within the following 30 rs. l SURVEILLANCE REQUIREMENTS n ,

\, _

m -,r ,

77V -

l 4.8.3.3 Eachoftheabovereqirepiruitbreakersshallbedemonstrated OPERABLE: g '

a. At least once per 18 m ths by selecting and functionally testing a representative sampi of at least 10% of each typ'e of circuit breaker.

Circuit breakers ected for functional testing shall be selected on a rotating b is. The functional test shall consist of injecting a current inp at-the specified setpoint to each selected circuit ,

breaker or elay and verifying that each circuit breaker functions as desig d. For each device found inoperable during these functional tests, n additional repeesentative sample of at least 10% of each over urrent protection device of the inoperable type shall also be f ctionally tested until no more failures are found or all devices f that type have been functionally tested.

At least once per 60 months by subjecting eat" :ircuit breaker to an l

! ins'pection and-preventive maintenance in accer ance with procedu_res ~

prepared in conjunction with its manuf acturer's recommendations.

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Amendment No./p/ 71 R71 SEQUOYAH - UNIT 2 3/4 8-21 l 8 August 16, 1988

O o ELECTRICAL POWER SYSTEMS ,

p.

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BASES A.C. SOURCES AND ONSITE POWER DISTRIBUTION SYSTEMS (Continued)

~

Verifyingaverageeiectrolytetemperatureabovetheminimumforwhichthe battery was sized, total battery terminal voltage onfloat charge, connection resistance values and the performance of battery service and discharge tests ensures the effectiveness of the charging system, the ability to handle high discharge rates and compares the battery capacity at that time with the rated capacity. _-

Table 4.8-2 specifies the normal limits for each designated pilot cell and gravity.

each connected cell fo. electrolyte level, float voltage and sp gravity, greater than 2.13 volts and .015 below the manufacturer's full charge specific gravity or a battery charger current that had stabilized atThe a low normal value, is characteristic of a charged cell with adequate capacity.

limits for each connected cell for float voltage and specific gravity, greater than 2.13 volts and not more tha .020 below the manufacturer's f ull charge specific gravity with an average specific gravity of all the connected cells

1. 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 .

r withi.n the allowable value specified in Table 4.8-2 is permitted for up to During this 7 day period: -

4 7 days.

1evel ensures no physical damage to the plates with an adequate electron Q

transfer capability; (2) the allowable value for.the averaga charge specific gravity, ensures that the decrease in rati cell's specific gravity, ensures that an individual cell's specific gravity will not be more than .0 40 below the manufacturer's full charge specific gravity and that the overall capability of the battery will be maintained within an acceptable 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 design function.

3/4.8.3 ELECTRICAL EQUIPMENT PROTECTJVE DEVICES 3rc protectd -

Ont$IcYi [S7IEefpSE..m.J penetrstion conducter:

by either deenergizing circuits not required during reactor operation or by demonstrating the OPERABILITY of primary and backup overcurrent protect circuit breakers during periodic surveillance.

o lowe ircuit breakers The surveillance requirements applicab lity'by testing at ,

e and fuses provides assurance of%reakergj ' f cturars brand of circuit breaker least or.e representative sa le 'e case and metal case circuit b-"kers and/or fuse. Each manufact ce resentative samples which are then tessed on and/or fuces are grouped intthat all breakers and/or fuses are tested. If a a rotating wide varietybasis exi to enwithin any manufacturer's brand of circuit breakers and/or f ecessary to divide that manufacturer's breakers and/or fuses L fuses, it ups and treat each group as a separate type of breaker or fuses for into R123 l

rveillance ourcoses- 1 Amendment No.123 SEQUOYAH - UNIT 2 B 3/4 8-2 April 27, 1990 1

1

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.O cf.*?y.:.J ty ("')f 1

-]

i BASES -

i

_ ELECTRICAL EQUIPMENT PROTECTIVE DEVICES (Continued) . ._

<)

.t ,

The OPERABILITY of the motor operated valves thermal ov d protection I' not prevent safety R25 d ensures thct the thermal overload t irprotectipy/%vicesw' related valves from performing for demonstrating the OPERABILI f anc%icn ad

. urveillance Requirements Mi ices are in accordance with  % l

_. Regulatory Guide 1.106 " Thermal. er Protection for Electric Motcrs on -

Hotor Operated Valves", Revis , March 1977. .~ _.

Circuit bre

~

actuated oy fault currents are used as isolation devices 3l in this p yl . The OPERABILITY of these circuit breakers ensures that the IE 41 buss s <111 be protected in the event of faults in non qualified loads powered 4i the busses.

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-.=g March 29, 1984 8

SEQUOYAH - UNIT 2 B 3/4 8-3 Amendment No. 25

l ENCLOSURE 3

)

I TENNESSEE VALLEY AUTHORITY I SEQUOYAH NUCLEAR PLANT (SQN)  !

UNITS 1 AND 2 j PROPOSED TECHNICAL SPECIFICATION (TS) CHANGE 99-01 REVISED PAGES I. AFFECTED PAGE LIST Unit 1 ,

Index Page IX Index Page X ]

i 3/4 8-15 )

3/4 8-16 j 3/4 8-17 i 3/4 8-20 B 3/4 8-2 B 3/4 8-3 Unit 2 l

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Index Page X j S/4 8-16 l 3/4 8-17 3/4 8-18 e 3/4 8-21 B 3/4 8-2 B 3/4 8-3 II. REVISED PAGES See attached.

(

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

1 .

INDEX ,

t LIMITING CONDITIONS FOR OPERATION AND SURVEILLANCE REQUIREMENTS SECTION pAGE 3/4.7.5 ULTIMATE HEAT' SINK . . . . . . . .. . . . . . . . . . . . 3/4 7-14 3/4.7.6 FLOOD PROTECTION . . . . . . . . . . . . . . . . . . . . 3/4 7-15  !

3/4.7.7 CONTROL ROOM EMERGENCY VENTILATION SYSTEM . . . . .. . . . 3/4 7-17 R65 3/4.7.8 AUXILIARY BUILDING GAS TREATMENT SYSTEM . . . . . . . . 3/4 7-19 3/4.7.9 SNUBBERS (DELETED) . . . . . . . . . . . . . . . . . . . 3/4 7-21 lR239 3/4.7.10 SEALED SOURCE CONTAMINATION . . . . . . . . . . . . . . . 3/4 7-29 3/4.7.11 . FIRE SUPPRESSION SYSTEMS (DELETED) . . . . . . . . . . . 3/4 7-31 R231

' 3/4.7.12 FIRE BARRIER PENETRATIONS (DELETED) . . . . . . . . . . . 3/4 7-41

' 3 /4 . 8 ELECTRICAL POWER SYSTEMS R65 -

3/4.8.1 A.C. SOURCES 3 OPERATING . . . . . . . . . . . . . . . . . . . . . . . . . 3/4 8-1 SHUTDOWN . . . . . . . . . . . . . . . . . . . . . . . . . 3/4 8-8

. 3/4.8.2 ONSITE POWER DISTRIBUTION SYSTEMS A.C. DISTRIBUTION - OPERATING . . . . . . . . . . . . . . . 3/4 0-9 A.C. DISTRIBUTION - SHUTDOWN . . . . . . . . . . . . . . 3/4 8-10  ;

l D.C. DISTRIBUTION - OPERATING . . . . . . . . . . . . . . 3/4 8-11 D.C. DISTRIBUTION - SHUTDOWN . . . . . . . . . . . . . . 3/4 8-14 3/4.8.3 ELECTRICAL EQUIPMENT PROTECTIVE DEVICES >

CONTAINMENT PENETRATION CONDUCTOR OVERCURRENT PROTECTIVE ,

l DEVICES (DELETED) . . . . . . . . . . . . . . . . . 3/4 8-15 l i l

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i j SEQUOYAH-- UNIT 1 IX Amendment No. 61, 227, 235,

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

INDEX LIMITING CONDITIONS FOR OPERATION AND SURVEILLANCE REQUIREMENTS EECTION PAGE MOTOR OPERATED VALVES THERMAL OVERLOAD PROTECTION (DELETED) 3 /4 8-17 l

ISOLATION DEVICES (DELETED) . . . . . . . . . . . . . . . 3/4 8-20 3/4.9 REFUELING OPERATIONS 3/4.9.1 BORON CONCENTRATION . . . . . . . . . . . . . . . . . . . . 3/4 9-1 3/4.9.2 INSTRUMENTATION . . . . . . . . . . . . . . . . . . . . . . 3/4 9-2 3/4 9.3 DECAY TIME . . . . . . . . . . . . . . . . . . . . . . . . 3/4 9-3 3/4.9.4 CONTAINMENT BUILDING PENETRATIONS . . . . . . . . . . . . . 3/4 9-4 3/4.9.5 COMMUNICATIONS . . . . . . . . . . . . . . . . . . . . . . 3/4 9-5 l 3/4.9.6 MANIPULATOR CRANE . . . . . . . . . . . . . . . . . . . . . 3/4 9-6 l

3/4.9.7 CRANE TRAVEL - SPENT FUEL PIT AREA (DELETED) . . . . . . . 3/4 9-7 lR208 3/4.9.8 RESIDUAL HEAT REMOVAL AND COOLANT CIRCULATION ALL WATER LEVELS . . . . . . . . . . . . . . . . . . . . . 3/4 9-8 LOW WATER LEVEL . . . . . . . . . . . . . . . . . . . . . 3/4 9-8a l 3/4.9.9 CONTAINMENT VENTILATION ISOLATION SYSTEM . . . . . . . . . 3/4 9-9 3/4.9.10 WATER LEVEL - REACTOR VESSEL , . . . . . . . . . . . . . 3/4 9-10 3/4.9.11 SPENT FUEL PIT WATER LEVEL . . . . . . . . . . . . . . . 3/4 9-11 3/4.9.12 AUXILIARY BUILDING GAS TREATMENT SYSTEM . . . . . . . . . 3/4 9-12 2/4.10 SPECIAL TEST EXCEPTIONS l

3/4.10.1 SHUTDOWN MARGIN . . . . . . . . . . . . . . . . . . . . . 3/4 10-1 3/4.10.2 GROUP HEIGHT, INSERTION AND POWER DISTRIBUTION LIMITS . . -3/4 10-2 3/4.10.3- PHYSICS TESTS . . . . . . . . . . . . . . . . . . . . . . 3/4 10-3 3/4.10.4 REACTOR COOLANT LOOPS . . . . . . . . . . . . . . . . . . 3/4 10-4 j 3/4.10.5 POSITION INDICATION SYSTEM - SHUTDOWN . . . . . . . . . . 3/4 10-5 i

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- SEQUOYAH - UNIT 1 X. Amendment No. 61, 204, 213, 4 , - , - - - -

P i- '.- a i Ll

!. ELECTRICAL POWER SYSTEMS l 3/4.8.3 ELECTRICAL EQUIPMENT PROTECTIVE DEVICES CONTAINMENT PENETRATION CONDUCTOR OVERCURRENT PROTECTIVE DFl[Cgg LIMITING CONDITION FOR OPERATION'

-This specification'is deleted. l l

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(Pages 3/4 8-15 through 3/4 8-16 are deleted)

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SEQUOYAH,- UNIT 1 3/4 8-15 Amendment Nos. 42, 110, 203, t

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l ELECTRICAL POWER SYSTEMS MOTOR OPERATED VALVES THERMAL OBRLOAD PROTECTION LIMITING CONDITION FOR OPERATION 1

This specification is deleted. l l

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l SEQUOYAH - UNIT 1 3/4 8-17 Araendment Nos , 33, 6 0., 128, 203 i

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ELECTRICAL POWER SYSTEMS ISOLATION DEVICES LIMITING CONDITION FOR OPERATION This specification is deleted.

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I (Page 3/4 8-20 is deleted) 1 l

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SEQUOYAH UNIT 1 3/4 8-20 Amendment Nos. 61, -8 0 ,

4

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ELECTRICAL POWER SYSTEMS BASES a

s ---u A.C. SOURCES AND ONSITE PONER D1STRIBUTION SYSTEMS (Continued)

Verifying averaga electrolyte temperature above the minimum for which the <

battery was sized, total battery terminal voltage onfloat charge, connection resistance values and the performance of battery service and discharge tests ensures the effectiveness of the charging system, the ability to handle high discharge races and compares the battery capacity at that time with the rated capacity.

Table 4.8-2 specifies the normal limits for each designated pilot cell and each connected cell for electrolyte level, float voltage and specific R16 gravity. The limits for the designated pilot cells float voltage and specific gravity, greater than 2.13 volts and .03.5 below the manufacturer's full charge specific gravity or a battery charger current that had stabilized at a low

'ulue, is charactaristic of a charged cell with adequate capacity. The normal limits for each connected cell for float voltage and specific gravity, greater than 2.13 volts and not more than .020 below the manufacturer's full charge specific gravity with an average specific gravity of all the connected cells not more than .010 below the manufacture'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 specified in Table 4.8-2 is permitted for up to 7 days. During this 7 day period: (1) the allowable values for electrolyte level ensures 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 acceptable 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 design function.

3/4.8.3 ELECTRICAL EOUIPMENT PROTECTIVE DEVICES This specification is deleted.

l

.SEQUOYAH - UNIT 1 B 3/4 8-1 Amendment No. 12, 137, l

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ELECTRICAL POWER SYSTEMS BASES (Page B 3/4 8-3 is deleted)

SEQUOYAH - UNIT 1 B 3/4 8-3 Amendment No. 33, 137, i

i

INDEX LIMITING CONDITIONS FOR OPERATION AND SURVEILLANCE REQUIREMENTS SECTION PAGE 3/4.8.3 ELECTRICAL EQUIPMENT PROTECTIVE DEVICES CCNTAINNENT PENETRATION CONDUCTOR OVERCURRENT PROTECTIVE DEVICES (DELETED) . .... . . . . . . . . . . . 3/4 8-16 MOTOR OPERATED VALVES THERMAL OVERLOAD PROTECTION (DELETED)3/4 8-18 ISOLATION DEVICES (DELETED) . . . . . . . . . . . . . . . 3/4 E-21 3 /4. 9 REFUELING OPERATIONS 3/4.9.1 BORON CONCENTRATION . . . .. . . . . . . . . . . . . . . 3/4 9-1 3/4.9.2 INSTRUMENTATION . . . . ........... . . . . . 3/4 9-3 3/4.9.3 L CAY TIME . . . . . . ........ . . . . . . . . 3/4 9-4 3/4.9.4 CONTAINMENT BUILDING PENETRATIONS . . . . . . . . . . . . . 3/4 9-5 3/4.9.5 COMMUNICATIONS . . . . . ...... . . . . . . . . . 3/4 9-6 3/4.9.6 MANIPULATOR CRANE . . . . ............ . . . . 3/4 9-7 3/4.9.7 CRANE TRAVEL - SPENT FUEL PIT AREA . . . . . . . . . . . . 3/4 9-8 lR194 3/4.9.8 RESIDUAL HEAT REMOVAL AND COOLANT CIRCULATION l 1

ALL WATER LEVELS . . . . ........... . . . . . 3/4 9-9 LOW WATER LEVEL , . . . . ....... . . . . . . . . . 3/4 9+10 3/4.9.9 CONTAINMENT VENTILATION ISOLATION SYSTEM . . . . . . . 3/4 9-11 3/4.9.10 WATER LEVEL - REACTOR VESSEL . . . . . . . . . . . . . . 3/4 9-12 3/4.9.11 WATER LEVEL-SPENT FUEL PIT . . . . . . . . . . . . . 3/4 9-13 3/4.9.12 AUXILIARY BUILDING GAS TREATMENT SYSTEM . . . . . . . . . 3/4 9-14 3/4.10 SPECIAL TEST EXCEPTIONS 3/4.10.1 SHUTDOWN MARGIN . . . . . .... . . . . . . . . . . . 3/4 10-1 3/4.10.2 GROUP HEIGHT, INSERTION AND POWER DISTRIBUTION LIMITS . . 3/4 10-2 3/4.10.3 PHYSICS TESTS . . . . . ....... . . . . . . . . . 3/4 10-3 SEQUOYAH - UNIT 2 X Amendment No. 53, 194, 203,

.. . . . . . _ . . . . . .m... ._._...._,_.__..._m. . . _ _ _ _ _._.. - , . . _ . _ . . . _ _ _ _ _ . . ._m.. .. _ . ...___....m _ . _

6 ELECTRICAL POWER SYSTEMS 3/4.3.3 - ELECTRICAL EOUIPMENT PROTECTIVE DEVICES CONTAINMENT PENETRATION CONDUCTOR OVERCURRENT PROTECTIVE DEVICES LIMITING' CONDITION FOR OPERATION s

This specification is deleted. l l

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(Pages 3/4 8-16 through 3/4 8-17 are deleted) l  ;

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f T

h SEQUOYAH - UNIT 2 .3/4 8-16 Amendment No. 34, 100, 193, 5

T w v 4 w  % y -w w r+- - ++ a. w er < v * +- m, -

~w e

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ELECTRICAL POWER SYSTEMS j MOTOR OPERATED VALVES THERMAL OVERLOAD PROTECTION I i

I SURVEILLANCE REQUIREMENTS (Continued) l l

This specification is deleted. l 1

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i (Page 3/4 8-18 is deleted) l I

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i SEQUOYAH - UNIT 2 3/4 8-18 Amendment No. 25, 71, 115, 193,

l ELECTRICAL POWER SYSTEMS ISOLATION DEVICES LIMITING CONDITION FL JPERATION This specification is deleted.

l (Page 3/4 8-21 is deleted) l SEQUOYAH - UNIT 2 3/4 8-21 Amendment No. 53, 71,

I , o ELECTRICAI, POWER SYSTEMS BASES A.C. SOURCES AND ONSITE POWER DISTRIBUTION SYSTEMS (Continued)

Verifying average electrolyte temperature above the minimum for which the battery was sized, total battery terminal voltage onfloat charge, connection resistance values and the performance of battery service and discharge tests ensures the effectiveness of the charging system, the ability to handle high discharge rates and compares the battery capacity at that time with the rated capacity.

Table 4.8-2 specifies the normal limits for each 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 .015 below the manufacturer's full charge specific gravity or a battery charger current that had stabilized at a low value, is characteristic of a charged cell with ademiate capacity. The normal limits for each connected cell for float voltage and specific gravity, greater than 2.13 volts and not more tha .020 below the manufacturer'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 specified in Table 4.8-2 is permitted for up to 7 days. During this 7 day period: (1) the allowable values for electrolyte level ensures 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 acceptable 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 design function.

3/4.8,3 ELECTRICAL EOUIPMENT PROTECTIVE DEVICES This specification is deleted.

t SEQUOYAH - UNIT 2 B 3/4 8-2 Amendment No. 123,

- . . ~ ~ - . - . . .- .-

+

ELECTRICAL POWER SYSTEMS l l

BASES 1 l

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(Page B 3/4 8-3 is deleted) l l

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SEQUOYAH - UNIT 2 B 3/4 8-3 Amendment No. 25, u_