Text

Proposed Tech Specs 3/4.3 Re Changes to ESFAS Functional Units 6.f,8.a & 8.b
	ML20202C456
Person / Time
Site:	Wolf Creek
Issue date:	02/04/1998
From:	; WOLF CREEK NUCLEAR OPERATING CORP.
To:	;
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ML20202C454	List: ML20202C450; ML20202C456;
References
	NUDOCS 9802120252
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- ,, . .

t Attachment IV to ET 90-0002

.. Pege 1 of.7 l

1 .

s

-ATTACHMENT IV PROPCSED TEClOIICAL SPECIFICATIOtt CHANGES CURRENT TECHNICAL SPECIFICATIONS 4

(/ 1 s

h -

a PDR I P ,2,.

1

.(

' w >

. TABLE 3.3-3 (Continued)- ag :

~

og !

ENGIfEERED SAFETY FEATURES ACTUATION SYSTOI INSTMBENTATI0d N :n-oR "

+

.m 2

TOTALIW..

MINIfR84 _ 25 ;

. N FUNCTIONAL' talIT '

0F CHAfGELS CHAf01ELS TO TRIP CHAISELS OPERABLE APPLICABLE MWES ACTIGIl

= j y.

o

-6.' Auxiliary Feeduster.

i. 5 . a. Manual Initiation 3(1/pamp) .1/ pimp 1/ pump 1, 2, 3 24 g i

[

e-

g. ;

e b. Automatic Actuation Logic 2- 1 ? 1, 2, 3 29 Q !

'and Actuation Relays (SSPS): m l

i

c. Automatic' Actuation Logic- 2 1- 2 1,2,3 21- l and Actuation Relays i

(80P ESFAS)

d. Sta.-Gen. Water Level-

.Q*

Low-Low

t w 1) Start Motor-Driven Pumps 4/sta. gen. 2/sta. gen. 3/sta. gen. 1, 2, 3 20*

y in'any opera- in each i ting sts. operating gen. sta. gen.

2) Start Turbine-Driven Pump 4/sta.' gen. 2/sta. gen. 3/sta. gen. 1, 2, 3 28* t

in any 2 in each '

[

operating operating !

sta. gen. sta. gen.

l j e. Safety Injection -Start' .

, g Nuter-Driven Pumps see Item 1. above for all Safety Injection initiating functions

e

, l .and requirements.

1 &

! '3 f. : Loss of-Offsite Pouer -

I E Start Turbine-Driven Pump ' t- -

1,2,3 -EE-z i

? (o4kyseunaermtwe. mau, we., m i ,2, 3 i, l

A l

I

- M d Volhge } !

r [

! 2) euw2Hc. Schahm t g,- 1.2. 3 ao !

togc M Ach a s 4 % s

(LSELS, M Sce ESFAS) -

= _ --

i

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

Attaehment IV to ET 98-0002

. Page 3 of 7 TABLE 3.3-3 (Continued)

ACTION S.'A1EM64TS (Continued)

ACTION 27 - With th:. number of 0.9ERABLE channels one less than the Minimum Channels OPERABLE requirement, be in at least' HOT STANDBY within 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months ; however, one channel may be bypassed for up to 4 ho..rs for surveillance testing per Specification 4.3.2.1

-provided the other channel is OFERABLE.

ACTION 28 - With the number of OPERABLE channels one less than the Total Number of Channels, STARTUP and/or POWER OPERATION may proceed provided the following conditions are satisfied:

a. The inoperable channel is placed in the tripped condition within 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months ,

b. The minimum channels OPIRABLE requirement is met; however, the inoperable channel may be bypassed for up to 4 hours4.62963e-5 days 0.00111 hours 6.613757e-6 weeks 1.522e-6 months for surveillance testing of other channels per Specifica-tion 4.3.2.1.

ACTION 23 - With the nurber of OPdABLE channels one less than the Minimu'm Channels OPERABLE requirement, restore the inoperable channel to OPERABLE status within 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months or be in at '. east HOT STAND 8Y within the next 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months and in et least HOT SHUTDOWN within the following 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months ; however, one channel may be bypassed for up to 4 hours4.62963e-5 days 0.00111 hours 6.613757e-6 weeks 1.522e-6 months for surveillance testing per Specification 4.3.2.1 provided the other channel is operable.

%CTicN 7,b - LO'ith 4ha number af CPGRABLE channel A one. less. th*W ihe.

L

ro tA. Number of Channets, restore. +he. Aope.uM.a. ch>nna4 4o . 0FERABt.E .5 tab b wiM 4 & hoars crdec.ixc. 4ht.

+aybint-drihm enehh feehm p %ger.gAa .and.

+aka h Ac.Tibu requwed b3 Spu.dicaMn a '1.1. 2. . /

Ldi+h +h e, number of CPERAst.E c.h>n M.o ho less th>n 4h e " Total Numbu e4 Chann.a.6, cie.e.t.rre. Ku. inrb ha -drivm '

addAir3 eedtoab. f pump vh ops.raMt ancLtah4. ika. criou l regtudt4 b Spu_i ficah' c w 3.1 I 7 . !

WOLF CREEK - Ui41T 1 3/4 3-21a Amendment No. 43

r

c. _.

TABLE 3.3-4 (Continued)-

ENGINEERED' SAFETY FEATJRES ACTUATION SYSTEN INSTRINENTATION TRIP SETPOINTS -

gu o, gi.

ig;

~

.e io 5

-TOTAL SENSOR TRIP ALLOMBLE

.n.

5 m

FUNCTIONAL ~ UNIT, ALLOWANCE (TA)

Z. ERROR (5)-- SETPOINT -VALUE .

7 *

' w"

, .6. Auxiliary Feedwater (Continued)' -r o

1 L2)1 *, tart Turbine.

Driven Pumps -- 23. 5 21.18 2.51 1 23.5K of 1 22.3K of. [L m

]l narrow range narrow range

. instrument instrument g span. , span; g Safety Injection -

e. . Start Motor-: -See Item 1. above for all Safety Injection Trip Setpoints and Allowable Valuesi Driven Pumps..

f. Loss-of-Offsite Power- -

Start Turbine-

_ Driven Pump M.A. N.A. N.A. N.A. N. A. . .

.R, -

Trip.of All Nain Feed-m -g.

A water Pumps - Start Motor-Driven Pumps N.A. N.A. N.A. N.A. N.A.

h. Auxiliary Feedwater-Pump Suction Pressure-Low (Transfer to ESW) N. A. ,.. N. A.- N.A. 1 21.60 psia' 1 20.53 psia.

7. Automatic'Switchover.-

to" Containment'. Sump

a. Automatic Actuation-Logic and Actuation N.A.

Nelays-(5595)

N.A. N.A. N.A. N.A.

3.4 1.21r ' 1.86 >.365 of > 35.1% of

b. mRWST Level-tow-tow -Instrument . Instrument span.' . span:

! Coincident with Safety Injection See. Item 1.almveforSafetyInjectionTripSetpointsandAllowableValues.

t fi)4kvBou M bp. .s.. M J 8 .a. bei r (n.s Trir e+pkts a %--h WD

- Laos =t vestsy

, 2) 4 dom.h"c. Acbah&w -

w.A. , g.4 , .3. 4 , o.A . ma.A.

ta j e. w A c % A la p ~

Ct.3FLS 2nsA. BePE.S$*As) .

"QN TABLE 4.3-2 (Continued) h b ENGINEERED SAFETY FEATURES ACTUATION SYSTEM INSTRUMENTATION M E SURVEILLANCE REQUIREMENTS q

TRIP 7 ANALOG ACTUATING MODES CHANNEL DEVICE MASTER SLAVE FOR MIICH g CHANNEL CHANNEL OPERATIONAL OPERATIONAL ACTUATION RELAY RELAY SURVEILLANCE q FUNCTIONAL UNIT CHECK CALIBRATION TEST TEST LOGIC TEST TEST TEST IS REQUIRED

" 6. Auxiliary Feedwater (Continued)

c. Automatic A-tuation N.A. N.A. N.A. N.A. M(1)(2) N.A. N. A. 1. 2, 3 Logic and Actuation Relays (BOP ESFAS)

d. Steam Generator Water S R Q N.A. N.A. N.A. N.A. 1, 2, 3 Level-Low-Lott

, e. Safety Injection See Item 1 above for all Safety Injection Survellia Ae Requirements 3;0ffsite."ccr N.A. R N.A. M N.A. M.A. N.A. 1, 2, 3 g, g. artp f All Main N.A. N.A. H.A R N.A. N.A. N.A. I u Feedwater Pu:pps

h. Auxiliary Feedwater 5 R H N.A. N.A. N.A. N.A. 1, 2, 3 Pump Suction Pressure-Low

7. Automatic Switchover to Containae.t Sump

a. Automatic Actuation N N.A. N.A. N.A. N(1) N(1) Q(3) 1, 2, 3, 4 Logic and Actuation

[ Relays (SSPS) h b. RWST Level - Low-Low S R Q N.A. N.A. N.A. N.A. 1, 2, 3, 4 a Coincident With 5 Safety Injection See Item 1. above for all Saf- t Injection Surveillance Requirements.

z

8. Loss of Power y a. 4 kV Undervoltage - H.A. h N.A. ii. A. N.A. N.A. 1, 2, 3, 4 Loss of Voltage ..

b. 4 kV Undervoltage - N.A. R (#) N.A. 'h d N.A. N.A. N.A. 1, 2, 3, 4 Grid Degraded Voltage

.l' Attschment'IV to'ET 98-0002 .

Pcg2 6: of 7 ,

CURRENT TECHt'ICAL SPECIFICATION (CTS) INSERTS INSERT A:

TRIP ANALOG ACTUATING- MODES CHANNEL DEVICE ACTUATION MASTER SLAVE FOR WHICH CHANNEL CHANNEL OPEPATONAL OFERATIONAL LOGIC REIAY RELAY SURVEILLANCE CHECK CALIBPATION TEST TEST TEST TEST TEST IS REQUIRED

_fMJCTIONAL tmIT 6.f Loss of Of f site Power -

Start Turbine Driven Pump R N.A. M N.A. N.A. N.A. 1,2,3

1) 4 kV Bus Undervoltage N. A. .

- Loss of Voltage N.A. R N.A. N.A. N.A. 1,2,3

2) Automatic Actuation N.A. N.A.

Logic and Actuation Relays (LSELS and BOP ESFAS) i

dQ3

-TABLE 4.3-2 (Continued) ff' k""

'ENGIEERED SAFETY FEATURES ACTUATION SYSTEN IMSTRISENTATION SURVEILLAIICE REQUIREENTS M S-

E

~

.,,, TRIP

ANALOG- ACTUATING IEIDES

CNAISIEL DEVICE MASTER SLAVE- FOR 1881CN g- CHAfRIEL CNAfREL OPERATIONAL OPERATIONAL ACTUATICII RELAY RELAY SURVEILLANCE q FUNCTIONAL UNIT- CHECK CALIBRATION TEST TEST LOGIC TEST TEST TEST IS REQUIE D' 9.,. Control Room Isolation

a. Manual Initiation N.A. N. A. - N.A. R N.A.- N.A. N.A. All

b. Automatic Actuation N.A. N.A. N.A. N.A. N(1) 30( 1 ) Q(3) 1, 2, 3, 4 Logic and Actuation Relays (SSPS)

c. Automatic Actuation N.A. II. A. N.A. N.A. N(1)(2) pl. A. II.A. 411

. Logic and Actuation R Relays (80P ESFAS)

d. Phase "A" Isolation See Item 3.a. above for all Phase "A" Isolation Surveillance poquirements.

10. Solid-State Load Sequencer M.A. H.A. N.A. N.A. M(1)(2) N.A. N.A. 1, 2, 3, 4

11. Engineered Safety Features Actuation System Interlocks

a. Pressurizer Pressure, M.A. R q N.A. N.A. N.A. 'II. A. 1, 2, 3 (

P-11

b. Reactor Trip, P-4 N.A. M. A.' N.A. R N.A. N.A. II. A. 1, 2, 3 TABLE fl0TATI0ftS (1)' Each train shall be tested at least every 62 days og a STAGGEllED TEST BASIS.

o

[(2) o Continuity check rey be excluded from the ACTL'ATION LOGIC TEST.'

(3) Except lielays K602, K620, K622, K624, K630. K740, and K741, which shall be tested at'least once per 18 months ~

0 during refueling and during each COLD 58R1T00181 suceeding 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months unless tiley'have beek' tested'within the previous 90 days. .. _ _- . - -

'4 of 4he. iime delg rel>p 6 pr{ormed_ as port of +he C54^dasex cat seeAriN.

]ed _ _-

4

, Attcchm nt V to ET 98-0002

. Pag) 1 of 12 e

ATTACHMENT V PROPOSED TECHNICAL SPECIFICATION CHANGES IMPROVED TECHNICAL SPECIFICATIONS w.

Attachment V to ET 98-0002 Page 2 of 12 ESFAS Instrementation 3.3.2 ACTIONS (continued)

CONDITION REQUIRED ACTION COMPLETION TIME e

-H. One channel inoperable ..* ... Note...... . ..

LCO 3.0.4 is not applicable H.1 Place channel in trip. I hour H.2 Restore inoperable 31 days or during channel to OPERABLE perfoneance of status, next C01, .bich occurs first.

N. One train inoperable .................N0TE...........

One train may be bypassed for up to 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months for surveillance testing provided the other train is OPERABLE.

N.1 Be in MODE 3. 6 hNrs M

N.2 Be in NODE 4. 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months

--- ~

0, cme. bin ihopersblo . 0.1 8eh freib to MMem 48 h wr>

dab.

M i E.A Enter opphcaklc. CondihhM 4Sbwr>

ed. Ragme'd e Actibn G) et ,

p j

Lcb S71.5 4 the h bihe. Amen 4o,1Ww3 Mawate rump .

1- mMe.moguaue.. !

[ 'P. ~ L e irai.u iAeperaMe., P.1 Enkr @icable. Conaihdn(A Immea'iatg bA Re4w'reA Achsn M e4

(( LCD, 3.7.5 & inc. wrbiAc.-

denm awMU P*P **^* "g feeamstw P"** -

g WCGS ITS 3.3 29 5/15/97

I Attachment V J ET 98-0002

'* ' Page 3 of 12 ESFAS Instrumentation 3.3.2

. SURVEILLANCE REQUIRENENTS

.. . + -

........................................N0TE Refer to Table 3.3.21 to 6temine which SRs apply for each ESFAS Function.

SURVE!LLANCE _. FREQUENCY SR 3.3.2.1- Perfom CHANNEL CHECK. 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months SR 3.3.2.2 Perfom ACTUATION LOGIC TEST. 31 days on a-STAGGERED TEST BASIS-SR 3.3.2.3 . ... . . . N0TE...............

The continuity check may be excluded.

Perform ACTUATION LOGIC TEST. - 31 days on a STAGGERED TEST -

BASIS-SR 3.3.2.4 Perform NASTER RELAY TEST. 31-days on a STAGGERED TEST BASIS' SR- 3.3.2.5 Perfom COT. 92 days SR 3.3.2.6. Perform SLAVE RELAY TEST. 92 days ge m.ng SR' 3.3.2.7 Perform TADOT. 01 ty; (continued) 2 3.3 30 5/15/97

.-W CGS ITSl ,,

. _ _ -.a_.__.-e-----L-- e--- - - - - - - - - - - - - - '

Attachment V to ET 98-0002 P6ge 4 of 12

_ , ESFAS Instrumentation 3.3.2 L

r = Table 3.3.21 (page 7 of 9)

Enginsered Safety Feature Atuation System Instrumentation APPLICABLE MCDES OR OTER SPECIFIED ff!3JIRED AR KILLANCE ALLGdAE'.E RJNCTION COWITIONS OWNELS COWIT!0N5 REQUIREENTS VALUE'8 g

L

6. Auxiliary Feedwater (continued) ~

d. L fety injn-tion Refer to Fun.; tion 1 (Safety injection) for all initiation ft?nctions and require ents.

~

e. Less of Offsite Power 1,2,3 2 trains SP 3.3.2.7__ NA G o, P - A 0.0.;, Q SR 3.3.2.10

~

(continued)

(a) The Allowable Value defines the Limiting Safety System Settisg. See the Bases for the Trip Setpoints.

b.

r-m ra w-WCGS ITS 3.3 39 5/15/97 I,

L- _ _ _ . . .

' . Attachment V to ET 98-0002

9' U ESTAS 2nstrtmentation B 3.3.2 BASES ,

APPLIC86LE 6. Auxiliary Feedwater (continued)

SAFETY ANALYSES, LCO, and With the transmitters (d/p cells) located inside APPLICABILITY containment and thus possibly e.,periencing adverse envirornental conditions (feed line break), the Trip Setpoint reflects the inclusion of both steady state and adverse environment instrtment uncertainties. The Trip Setpoint for the Start Motor Driven Pumps and the Start g Turbine Driven Pumps is 123.5% of narrow rance M instrumentation span. "

d. Auxiliary Feedwater Safety Iniection An 51 signal starts the motor driven AFW ptmps via LOCA sequencer. The AFW initiatin functions are the same as the requirements for their SI function.

Therefore, the requirements are not repeated in Table 3.3.2 1. Instead Function 1. SI, is referenced for all initiating functicr.s and requirements,

e. Auxiliarv Feedwater Loss o_f Offsite Power t.or')

A loss of offsite power to safeguard buses will -

be accompanied by a loss of reac':or coolant punpir.g power and the subsequent need for some method of decay heat removal. Thefossof LOP is detected by a voltage drop eachon /ffsitefower safeguard bus. The LOP is sensed and processed by the circuitry for LOP DG start (Load Shedder Emergency Load Sequencer) and fed to the B0P ESFAS by the

. relay actuation. Loss of power to either safeguard

[nd au.towb'c% WW" h bus will start the turbine driven AFW pugto ensure sc, blowdoe M s2rwyk that at least one SG contains enough water te serve mes, as the neat sink for reactor decay heat and sensible heat roovel following the reactor trip. In addition, 2.ce the diesel generators are started and up to speed, the motor driven AFW pumps will be sequentially loaded or.to the diesel generator busses.

Functions 6.a. 6.b. 6.c. and 6.e must be OPERABLE in H0 DES 1, 2, and 3 to ensure that the SGs remain the heat sink for the reactor. SG Water Level-Low Low (continued)

WCGS ITS BASF.S B 3.3-85 5/15/97

Attachment V to ET 98-0002 Page 6 of 12 ESFAS Instrumentation B 3.3.2 BkSES ,

ACTIONS E.1. E.2.1. and E.2.2 (continued)

To avoid the inadverte.it actuction of containment spray and Phase B containment isolation, the inoperable channel should not be placed in the tripped condition. .Instead it is bypassed.

t Restoring the channel to OPERABLE status, or placing the inoperable channel in the bypass condition within 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months , is-sufficio:it to assure that the Function remains OPERABLE and minimizes the time that the Function may be in a partial trip condition (asstning the inoperable channel has failed high). The Corpletion Time is further justified based on the low probability of an eve 7t occurring during this interval. Failure to restore the inoperable channel to OPERABLE status, or place it in the bypassed condition within 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months , requires the unit be rlaced in H00E 3 within the following 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months and H0DE 4 within the next 6 hotes. The allowed Completion Times are reasonabic, based on

. operating experien:e, to reach the required unit coi,E.t/lons from full power conditions in an orderly manner and without challenging unit systems. In H00E 4, these Functions are no longer required OPERABLE.

The Required Actions are modified by a Note that allows one i additional channel to be bypassed for up to 4 hours4.62963e-5 days 0.00111 hours 6.613757e-6 weeks 1.522e-6 months _ for surveillance testing. Placing a second channel in the i. pass condition for up to 4 hours4.62963e-5 days 0.00111 hours 6.613757e-6 weeks 1.522e-6 months for testing purposes is acceptable based on the results of Reference 7.

F.1. F.2.1. and F.2.2 Condition F applies to:

Manual Initiation of Steam Line (fast close) Isolation, h

[ es N d biitt r b r M

= P 4 Interlock.

For the Manual Initiat in and tha P 4 Interlock Functions, thi_s_

action addresses the train orientation of the SSPS. (T:r th trQ_

(continued)

WCGS AIS 8%ES B 3.3 97 5/15/97

Attachment V to F.T 98-0002 ESFAS Instrumentatiori

-- Page of.12 B 3.3.2 a BASES ACTIONS F.1. F.2.1. and F.2.2 (continued) b'0Utb r Pr.:ti .. thib =cti= TNT.iM th 'b ef3 annual-4 pip p:M:ir ";tc_' ail:(p z gA a train or channel is inoperable, 48 hours5.555556e-4 days 0.0133 hours 7.936508e-5 weeks 1.8264e-5 months is allowed to return it to OPERABLE status. _The specified Completion Time is reasonable .

considering the nature of these Functionr. the available redundancy, ano the low probability of an event occuning during this interval. If the Function cannat be returned to OPERABLE status, the unit must be placed in MODE 3 within the next 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months I and EIDE 4 within the following 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months . The allowed Completion Times are reasonable, based on operating experience, to reach the required unit conditions from full power in an orderly _ manner and without challenging unit systems. In MODE 4, the unit does not-have any analyzed transients or conditions that require the explicit use of the protection functions noted above.

G.I. G.2.1 and G.2.2 Condition G applies to the automatic actuation' logic and actuation relays for the Steam Line Isolation and AFW actuation Furctions.

The action addresses the train orientation of the SSPS and the master and slave relays for these functions. If one train 1s-inoperable. 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months are allowed to restore the train to 0FERABLE T status. The Completion Time for restoring a train to OPERABLE status is reasonable considering that there is another train -

OPERABLE, and 'the low probability of an event _ occurring during

.this interval. If the train cannot be returned to OPLMBLE 2

status, the unit must be brought to MODE 3 within the next 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months and MODE 4 within the following 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months . The allowed Coupletion Times are reasonable, based an operati.g experience, to reach the requirM unit conditions from full power conditions-in an orderly manner and without challenging unit systems.

Placing the unit in MODE 4 removes all requirements for OPEIVaILITY of the protection channels and actuation functions.

4 (continued)

WCGS ITS BASES B 3.3 98 5/15/97 e , .

Attachment V to ET 98-0002 -ESFAS Instrumentation

"- Page-8.of-12 .B 3.3;'.

! BASES ACTIONS-- N.1 and N.2 i L (continued)

Condition N applies to the Auxdiary Feedwatet Balance of P1snt i ESFAS automatic actuation logic and_ actuation relays. With one-train inoperable, the unit must be brought to MODE 3 within 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months and MODE 4 within the following 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months ._ -The Required Actions-are modified it,* a Note that allows one train to be bypassed for up to 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months for surveillance testing provided the -

other train is OPERABLE.

SLRVEILLANCE - The SRs for each ESFAS Function are ide:.tified by the SRs. column REQUIREENTS of Table 3.3.21.

A Note has been added to the SR Table to clarify that Table 3.2 21 determines'which SRs apply tr 'hich ESFAS Functions, Note that each channel of process protection supplies both' trains.

of the ESFAS. When testing channeltI# train A and train B must be, examined. Similarly, train A and train B must be examined when testing chnnel II, channel III. and channel IV. The-CHANNEL CALIBRMION and COTS are performed in a manwr that is consistent with the assumptioas used in -analytically calcula*ing-thr. required channel accuracies.

SR 3.3.2.1

Performance of the CHAM 4EL CHECK once every 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months ensures that- <

a gross failure of insi;rumentation has not occurred. A CHANNEL CHECK is_normally a comparison of the parameter _ indicated on one a channel to a similar parameter on other channels.- -_It is. based on the as%sption that instrtment channels monitoring the same paramster should read approximately the same value. Significant dev1ations between the two instrument channels could be an indication of excessive instrument drift in one of the channels or of something even more serious. A CHANNEL CHECK will detect gross channel failure: thus, it is key to verifying the instrumentation continues to operate properly between each '

CHANNEL CALIBRATION.

Agreement criteria are determined by the unit staff, based on a combination of the channel instrurant uncertainties including indication ~ard reliability. If a channel is outside the (continued)

-WCGS ITS BASES B 3.3 103 -5/15/97

, .Attschtn:nt V to ET 98-0002

, Pcgo 9 of 12

? INSERT O.1 and 0.2 Condition:0 applies to the Auxiliary Feedwater Loss of Offsite Power Function.

If one train is inoperable, 48_ hours is allowed to return it to OrERABLE 3 L

status. The specified Completion Time is reasonable considering the fact that_ ~

this ? unction is associated only with the turbino-driven AFW pump, .the available redundancy provided by the motor-driven AFW punps, and the low probability of an event occurring during this interval. If the Function cannot be returned to OPERABLE status, enter the applicable Condition (s) and Required Action (s) of LCO 3.7.5, " Auxiliary Feedwater (AFW) System +" for the turbine-driven AFd pump made inoperable.

P.1

. Condition P applies to the Auxiliary Feedwater Loss of Offsite Power Function.

If two trains are inoperable, immediately enter the applicable Condition (s) and Required Action (s) of_LCO 3.7.5, " Auxiliary 7eedwater (AFW) System" for

.the turbine-driven AFW pump inoperable.

.=

___a

~

,,..

Attachment'V.to ET 98-0002 ' ESFAS Instrtmentation Page 10 of-121 B 3.3.2 -

BASES

- SLRVEILLANCE lSR 3.3.2.6 (continued)-

REQUIRD M S

.feedvater pump trip solcaoids since that circuitry serves no required safety function.-- The Frequency is adequate based on industry operating experience, considering-instrument reliability and operating history oata.-

SR' 3.3.2.7 gg

~

SR 3.3.2.7 is the performance of a TADOT every M ty:. This test is' a check of the Loss of Of' rite Power function. -The trip r

' LSEt.S *Ngut et%s encl : actuating devices tested within the scope of SR 3.3.2.7 are the -

w am Ww logic, a.uociated. with +be.

ee = :t.rt :imita une r.c . ; = 3. .:.:.,

4urbihe.drin.nj AFW pump. . Relay setpoints require elaborate bench Calibration and are

- verified during CHANNEL CALIBRATION. The Frepy is adequate.

It is based'on industry operating exrcrienceC xxiirt . !

"-_'--~ .L li:bility r4 c.grCin;; hi try it:.fori. is copsden4 i

w'ith ihm typical rufL (7Q cyc. e. ..Ths. Trip a* bat 7, dewe.as +earee % n. 2 3ee ,atett ee+ poi n+.

SIL 3.12.8 SR 3.3.2.8 is the perfomance of a TADOT. This test is a check of the Manual Actuation Fiinctions-(SSPS)and AFW pump start on . ,

trip of all MFW pumps. BOP LFAS.- ;It is performed every 1 18 months. Each Manual Actuation Function is tested up to, and L including. the master relay roils. In some instances.- the test l' .. includes actuation ~of the end device (i.e.. pap starts. valve -

cycles. etc.).. The Frequency is adequate based on industry _ '

operating experience and is consistent with the typical. refueling cycle. The SR is modified by a Note that excludes verification of setpoints during the TADOT for manual initiation Functions.

The manual initiation Functions have no associated.setpoints.

SR 3.3.2.9 SR 3.3.2.9 is the performance.of a CHANNEL CALIBRATION.

A CHANNEL CALIBRATION is perfomed every 18 months. or approximately at every refueling. CHANNEL CALIBRATION is a complete check of the instrument loop including the sensor. The test verifies that the channel responds to measured parameter (continued)

WCGS-ITS BASES B 3.3 106 5/15/97 e

Attachment V to ET 98-0002 LOP DG Start Instrtmentation Page11.1 of'12 --

B 3.3.5 a

BASES- _

= APPLICABLE -The LOP DG start instrumentation channels satisfy Criterion 3 of SAFETY ANALYSES ~10 CFR 50.36 (c)(2)(11).

(continued) w LCO The LCO' for LOP DG start instrumentation requires that four

_ - - _ channels per 4 kV NB system bus of both the loss of voltage and

~ hWeb we, whmdicaly stuha degraded voltage Functions shall be OPERABLE in MODES 1, 2, 3,

& e9mF.4n of me, and 4 when the LOP DG start instrtmentation supports safety

a. ppm systems associated with the ESFAS. In MODES 5 and 6. the four me. br Ek We. delg.3 g channels must be OPERABLE whenever the associated DG is required mader e.enne to be OPERABLE to ensure that the automatic start of the DG is -

_31"#' 2 available when needed. Loss of the LOP DG Start Instrtmentation -

- Function could result in the delay of safety systems initiation when required.- This could lesd to unacceptable tonsequencec q ~- during accidents. During the loss of offsite power the DG powers Ine motor driven auxiliary feedwater puepf'. Failure of these pumps to stsrt would leave the turbine driven ptmp,;as well as an increased potential for a loss of decay heat removanthrcethe seconda*y systemfinied b3 me tc>P ewe avec.t Leecsipt Emcem toaa*Eloss .kepencs ofEaps vettage M4cah=ddu ve. tap, __

%c Wa >g 9.n APPLICABILITY The LOP DG Start Instrtmentation Functions are required in H0 DES li 2, 3, and 4 because ESF Functions are designed to provide protection in these MODES. Actuation in MODE 5 or 6 is required whenever the required DG west be OPERABLE so that it can perform its function on an LOP or degraded power te the vital bus.

ACTIONS- In the event a channel's Trip Setpoint is found nonconservative with respect to the Allowable Value, or the channel is found inoperable, then the function that channel provides must be declared inoperable and the LCO Condition entered for the particular protection function affected. Because the required channels are specified on a per bus basis, the Condition may be entered separately for each bus as appropriate.

A Note has been added in the ACTIONS to clarify the application of Completion Time rules. The Conditions of this Specification

,may be entered independently for each Function listed in the LCO.

-The Completion Time (s) of the inoperable channel (s) of a Function (continued)

Wr.GS ITS BASES B 3.3 734 5/15/97 e-

.. , . . . _ . - _ - . _ - . - . - - - - l

9

.d- . Attachment V to ET 98-0002 LOP DG Start Instrumentatdon Page 12 of.12 8 3.3.5

.B.ASES _

l 6 l ACTIONS C.l (continued) l In these ciretastances the Conditions specified in LT 3.8.1. "AC Sources-Operating," or LCO 3.8.2. "AC Sources-Shutdown." for the DG made inoperable by failure of the LOP DG start instrtmentation are required to be entered inmediately. The actions of those LCOs provide for adequate compensatory actions to assure unit safety.

Ild Condition D applies to each of the LOP DG start Functions when the Required Mtions and associated Completion Times for Condition A and B are not met when the associated DG is required to be OPERABLE per LCO 3.8.2. In these circumstances the Conditions specified in LCO 3.8.2. "AC Sources _ Shutdown" for the DG and and offsite circuit made inoperable by failure of the LOP OG start instrtmentation are required to be entered inew1ately. The actions of that LCO are for adequate compensatory actions to assure unit safety. ,

SURVEILLANCE SR 3.3.5.1 REQUIREMENTS Not Used.

SR 3.3. U SR 3.3.5.2 is the perforamnce of a (ADOT. This test is performed every 31 days. The test checks trip devices that provide actuation signals directly, bypassing the analog process control.

equipment. For these tests, the relay Trip Setpoints are verified.and adjusted as necessary. The Frequency is based on the known reliability of the relays a controls and the multichannel redundancy available, and s been shown to be 4ceptable throuch operating experience.

4 Teas 3 of +he. +i Ae, acts,3 vwIap is per{ermect .ae prt d

, 4h cHANoet cAteeA now (,sa.,3,3,s,3)

SR 3.3.5.3 SR 3.3.5.3 is the performance of a CHANNEL r.ALIBRATION.

.The setpoints, as well as de response to a loss of voltage and a degraded voltage test, shall include a single point (continued)

~

WCGS ITS BASES B 3.3-136 5/15/97 I

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ML20202C456

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