Text

TS 3.3.5.2 Re ECCS Actuation Logic & 3.3.5.1 Re ECCS Instrumentation
	ML20101G680
Person / Time
Site:	05200001
Issue date:	05/15/1992
From:	; GENERAL ELECTRIC CO.
To:	;
Shared Package
ML20101G679	List: ML20101G675; ML20101G680;
References
	NUDOCS 9206260235
	Download: ML20101G680 (19)
	v • d • e

.. . - - _ _ . - - . . . - - - _ - . -

fW 15 . . . '92

. . . . . . _ .04:29rti G E tOCLEr# BLDG J- _ _ . - . . . . . _ - P.21/2 s

ECCS Actuation Logic

. 3.3.5.2 I

$ 1 SURVEILLAt1CE REQUIREMENTS

....--.... --......r........--. NOTE-----------------------------------

A channel .may be placed in an increrable or bypass status for up to 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months for required survel;1ance testing.

SURVEILLAt:CE ,

FP EOUE!!CY SR 3.3.5.2.1 Perform CHANNEL FUNCTIONAL TE$7. (92) days SR 3.3.$.2.2 Perform LOG:0 SYSTEM TUNCTIONAL TEST. [183 months SR 3.3.5.2.3 Perform ECCS RESPONSE TIME TEST. [10) months 5/15/92 3.3.5.2 3 ABWR STS 9206260235 920515

{DR ADOCK 05200002 PDR

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t%Y 13 '92 0182DPI1 G t toCLtm DLIG J p,'Ece21' ECCS Actuation Logic l 3.3.5.2 CCMDIT CN REC'JIRED ACTION COMPLETION TIME C. Two actuation logic C . *. Verify automatic 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months chann %s inoperable actuation for any ADS capability in at subsystem. least one ADS :

I subsystem Ch h20.

Required Actions and associated Completion C.2 Restore automatic 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months Times of Condition A actuation not met for any ADS capability in both subsystem. ADS subsysterns D. Required Actions and D.; Declare all ADS Irr nediately associated Completion valves inoperable Times of Condition C not met.

S/15/92 3.3.5.2-2 ABWR STS

- F K ekt 4 D B-?;t i t M - pr. g g; gg;;, 73; 779

,t%Y 15 '92 04:2EPt1 G E FOCLEAR BLDG J P.19/21 ECCS Actuation Logic 3.3.5.2 3.3 INSTRUMENTATION 3.3.$.2 r-ergency tcre Ecolina System FCCM Actuation LoSic LCC 3.3.5.2 Two channels of actuation logic for each ECCS subsystem shall be C?ERABLE.

APPLICABILITY: MCDE 1, MODES 2 and 3, except that:

(a) A05 actuation logic is not required to be OPERABLE with reactor steam deme pressure 5 50 psig; and, (b) RCIC actuatien logic is not required to be OPERABLE with reactor steam don.e pressure 5 150 psig.

MODES 4 and 5, when the associated ECCS subsystem is required tc be CFERABLE. j 1

ACT:ONS

NOTE--------------------------------

Seperate Condition entry is allowed for actuation logic of each ECCS 1 function.

CONDIT ON REQUIRED ACTION COMPLETION TIME A. One actuaticn logic A.1 Verify channel is 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months channel inoperable in bypass / trip for any ICCS condition. -

subsystem.

M A.2 Restore channel to 30 days OPERABLE status, i

B. Two actuatien logic 3.1 Declare the Immediately channels incperable affected ECCS for any ECCS injection injection subsystem. Subsystem (s) inoperable.

CE Required Actions and associated Completion Times of Condition A act met for any ECCE injection subsystem.

(continued) 5/15/92 3.3.5.2-1 ABWR STS n n: m-9:n e a- : r - i s - s e ._a..__.__: :_e nt

_ __r:9 _ _

.IAY 15 '92 04:20Pf1 G C fiUCLCAR DLDG J P.1G/21 ECCS Instrumentation 3.3.5.1 Table 3.3.5.1-2 Emergency Core Cooling System Instrumentation (Single Channel Functions)

TUNCTION APPL! CABLE CONDITION SURVEILLANCE ALLOWABLE H00E$ RErtRENCED REQUIREMENTS VALUE TRCH REQUIRED ACTION C.1

20. RER-LFTL A Hanual 1,2, 3. 4 ( a ) , $ ( a ) M SR 3.3.5,1.$ H/A Initiation

21. RER-LPTL 3 Hanual 1, 2, 3, 4 ( a ) , 5 ( a ) E $3 3.3.5.1.$ N/A 2nitiation 1

22. RBR LIFL C Hanual 1. 2, 3, 4 ( a) , $ ( a ) H SR 3 3.5.1.5 N/A Initiation i

23. ECIC Hanual 1.2(c),3(c) N SR 3.3.S.1.5 N/A Initiation

24. EFCT B Hanual 1,2, 3, 4 ( a ) , $ ( a ) R BR 3.3.5.1.5 N/A Initiation 25, 8 PCT C Manual 1, 2, 3, 4 ( a ) . $ ( a ) H SR 3.3.5.1.5 N/A Initistion

26. ADS A Manual 1,2 (b) ,3 (b) B BR 3.3.5.1.5 N/A Initiation

21. ADS B Hanual 1,2(b),3(b) 2 SR 3.3,5.1.5 W/A Initiation (4) When the associated ECCS subsystera is required to be CFEPASLE .

(b) With reactor stese dome pressure >[60) paig.

(c) With reactor steam core pressure >{180) T8194 5/;5/92 3.3.5.1-13 ABWR STS

_ rr;x Ace-reite- ce- r s-n oe:n ru rie

t%Y 15 '92 048 27PM G E f LCLEAR BLDG J P.17/21 1 ECCS Instrumentation 3.3.5.1 i

1 Table 3.3.5.1-2 Energency Ocre Cccling System Instrumentation (Single Channel Functions)

- - _ ___n.-- .- _

' AFFLICABLE CONDITION SDRVE!LLANCE ALLOWABLE TCHCf!0H MODES REFERENCED REQUIRENENTS VALUE l FROM REOUIRED j ACTION C.1 i

I

12. RCIC tump Discharge Flow -Low

a. Fump Minieum Flow 1.2(c).3(c) X $R 3.3.5.1.1 5( ) gpm valve Logic sR 3.3.5.1.2 and a ER 3.3.5.1.4 2 ( ) gym l SR 3.3.5.1.5 l l

13. RER A Minimum Flow 1,2,3.4(a) S(a) E 8R 3.3 5.1.4 5 ( )

Valve Time Delay SR 3.).S.1.5 seconds Relay 1

14. RER B Min.. sum Flow 1. 2,3,4 (a) 5 (a) H $R 3.3.5.1.4 $ ( )

Valve Tire Delay SR 3.3.5.1.5 seconde Relay II RER C Minimum Flow 1. 2. 3. 4 ( a ) 5 ( a) a SR 3.3.5.1.4 5 ( )

Valve Time Celay SR 3.3.5.1.5 seconda Relay

16. ADS A Init iat t en 1,2 (b) . 3 (b) D sR 3.3.5.1.4 5 [ ]

Timer SR 3.3.5.1.5 seconda

17. ADS B Initiation 1,2 (b) . 3 (b) D 3R 3.3.5.1.4 5( )

Timor SR 3.3.5.1.5 seconds

18. AOS A Bypass Timer 1.2(b).3(b) D SR 3.3.5.1.4 5 ( )

(Eigh drywell SR 3.3.5.1.5 minutes Fressure)

19. AOs 8 Bypass Timer 1. 2 (b) ,3 (b) D SR 3.3.5.1.4 5 ( )

(Eigh Dryve11 sR 3.3.5.1,5 minutes Pressure)

(continued) 5/15/92 3.3.5.1-12 ABWR STS m M m -?:;)e*7 ._ _ _ ..c e - : t-9: ce;;e tu rin , ,

f1AY 15 '92 04 2?Pf1 G E ffJCLEAR DLDG J P.16/21 ECCS Instrumentation 3.3.5.1 Tatie 3.3.5.1-2 Emergency Ccre cooling system :nstrumentation (Single Channel Functions)

FUNCTION APPLICABLE C ollD I T I O N SURVE1LLANCE ALLOWADLE HCDEs REFERENCED REQUIREMENTS VALUE TROM REQUIRED ACTION C.1 1 RER Pump A Discharge Flow--Low a Pump Minimum riov 1,2. 3. 4 ( a) 5 ( a ) N $R 3.3.5.1.1 51 ) gPa valve Logie SR 3.3.S.1.2 and SR 3.3.5.1.4 2( ) gpa SR 3.3.S.1.5

8. RER F u s;p B Discharge Flew--Low

a. Fump Minimum Flow 1, 2, 3, 4 ( a ) , 5 ( a ) B BR 3.3.5.1.1 5 ( ) Spa Valva Logic SR 3.3.$,1.2 and SP 3.3.5.1.4 2 I ) gpm SR 3.3.5.1.5

9. Rag t u sip C Discharge Flow.-Low

a. Pump Minimum T1ov 1. 2, 3, 4 ( a ) , $ ( a ) E SR 3,3.5.1.1 5 ( ) gem Valve Logic SR 3.1.$.1.2 and 4R 3.3.5.1.4 21 ) gem SR 3.3.S.1.5

10. RPCF fump & Discharge Flow == Low

a. Pump Minimum Flow 1. 2, 3, 4 ( a ) $ ( a ) K SR 3.3.5.1.1 5 ( ) gpm Valve Logic ER 3.3.5.1.2 and SR 3.3.3.1.4 2( ) erm SR 3.3.5.1.5

11. NPCT Pump C Discharge riow.. Low

s. Pump Minimum Tiow 1,2, 3, 4 ( a ) . 5 ( a ) R SR 3.3.5.1.1 5 ( ) gpm Valva Logic 2R 3,3,5.1.2 and SR 3.3.5.1.4 2 ( ) gpm 5R 3.3.5.1.5 (continued) 5/15/92 3.3.5.1-11 ABWR STS n ut 4 M-9:e t e r ce-te-9: ee ::e nt r:e

114Y 15 '92 04827oti G t I U R BLDG J P.15/21 ECCS Instrumentation 3.3.5.1 Cable 3.3.5.*-2 Emergency Core Cooling System Instrumentation (Single Channel Functions)

FUNCTION AFPLICABLE CCNDITION SURVEILLANCE ALLOWABLE N0 DES REFERENCED REQUIREMENTS VALUE t rr on REQUIRED ACTION C.1 4 EPCF Pun.p B Discharge Pressure--High

a. Pump Minimum Flow 1. ,3,4(a),5(a) E ak 3.3.5.1.1 & ( ) peig valve Logie SR 3.3.5.1.2 and SR 3.3.S.I.4 5 ( ) psig SR 3.3.5.1.5

b. ADS Perniissive 1,2(b).3(u) E SR 3.3.5.1.1 2 ( ) pelg SR 3.3.5.1.2 and SR 3.3.5.1.4 5 ( ) psig Sh 3.3.S.1.5

5. EPCT Pump C Discharge Pressure--High

a. Pump Mininum Tiov 1,2.3,44a),5(a) M SR 5.1.1 & ( ) psig valve Logic SR 3.h.5.1.3 and SR 3.3.5.1.4 5 ( ) psig SR 3.3.5.1.5

b. ADS Permissive 1. 2 (b) . 3 (b) E $R 3.3.5.1.1 2 ( ) peig SR 3.3.5.1.2 and

$ P, 3.3.5.1.4 s( } peig ER 3.3.S.1.5

6. RCIC Pump Discharge Pressuru==High A. Pump Minimum T1cv 1, 3 ( c ) . 3 ( c ) E SR 3.3,5.1.1 2 ( ) psig valve Logic SR 3.3.5.1.2 and SR 3.3.5.1.4 5 ( ) psig SR 3.3.$.1.5 (continued) 5/15/92 3.3.5.1-10 .ABWR STS neu 4v-m i e en . . . .

. . c e. - i t -g e r .; : e_ ni rie .

f%Y 15 '92 04:27Pf1 G E thJCLC@ DLIG J ' P.14/21 ECCS Instrumentation 3.3.5.1

':"abl e 3 . 3 . 5 .1 - 2 E:Ler;ency core cooling Jystem Instru:tentatien (Single Channel Functaons)

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

FUNCTION AFPLICABLE CONDITION scRVE!LLANCE ALLOWABLE HODES REFERENCED REQUIREMENTS VALUE FROM REOU! RED ACTICN C.1

1. RER Pump A Discharge Fressure--High

a. Pump Minleum riow 1.2.3,4(a).5(a) E $R 3.3.5.1.1 2 l ) psig Valve Logic SR 3.3.5.1.3 and BR 3.3.5.1.4 $ ( ) peig SR 3.3.5.1.5

b. ADS Permissive 1. 2 (b) , 3 (b) E SR 3.3.5.1.1 2 ( ] __ psig

$R 3.3.5.1.2 and SR 3.3.5.1.4 5 ( ) psig SR .3.5.1.3 2 PER Pump B Discharge Pressure -Righ

a. Purp Minimum Flow 1,2,3.4(a).5(a) E SR 3.3.5.1.1 2 ( ) psig Valva Lcgic SR 3.3.3.1.2 and SR 3.3.5.1.4 s( ) psig SR 3.3.5.1.5

b. ADS Permissive 1. 2 (b) ,3 (b) E SR 3.3.5.1.1 2 ( ) psig SR 3.3.5.1.2 and SR 3.3.5.1.4 5 ( ) psig SR 3.3.5.1.5 l

3. RER Pump C Discharge Pressure--Migh

a. Pump Minimum flow 1, 2. 3. 4 ( a) , 5 ( a ) E SR 3.3.5.1.1 2 ( ) psig Valve Logic SR 3.3.$.1.2 and SR 3.3.3.1 4 5 ( ) psig SR 3.3.5.1.5 b . AOS Permissive 1,2(b).3(b) E SR 3.3.5.1.1 1 ( ) psig SR 3.3.5.1.2 and SR 3.3,5.1.4 5 ( ) psig SR 3.3.5.1.5 (continued) 5/15/92 3.3.5.1-9 ABWR STS n R M e-M !i m e?-it-9: *a::e in tu

.tMY 15 '92 03126Pt1 G E ffJCLEAR BLDG J F.13/21 4

ECCS Instrumentation 3.3.5.1 Table 3.3.5.1-1 E.mergency Core Ocoling Systen. Instrumentation -

(Four Channel Functions)

FUNCTION APPLICABLE CONDITICHS SURVEILLANCE ALLOWABLE MODES REFERENCED REQUIREHENTS VALUE TROM REQUIRED ACTICN C.1

9. Supp<ss41on ***1 Water Level--Wigh. Suction swapever (A-D)

a. RCIC 1.2(c).3(c) G SR 3.3.5.1.1 5 ( ) inches f 3.3.5.1.2 3R 3.3.5.1.4 sk 3.3.5.1.5

b. HPCT B 1. 2. 3. 4 ( a ) . 5 (a ) C SR 3.3.5.1.1 5 [ ] inches c, MPCF C SR 3.3.5.1.2 i SR 3.3.5.1.4 SR 3.3.5.1.5

10. APRM ==Not Downscale (A.D)

a. ADS A Innibit 1.2te).3(e) F 3R 3.3.5.1,1 $ [ ] g RTP

b. ADB B Inhittt SR 3.3.3.1.2 SR 3.3.5.1.4 SR 1.3.5.1.$

- . _____ _ - _ = - - -

'a) When the associated E002 a,....Lwt is re<pi red to be OPERABLE.

(b) With reactos steam dome pay - - .- ( 5 0 ) peig.

(c) With reactor eteam dome pracs .. >[14 41 paig.

't 5/15/92 3.3.5.1-3 ASWP. STS vv-.o .

-,....r u.,, ,.. 7.,

MR' m

, t1AY 15 '92 04:26PM G E ffJCLEAR BLDG J P.12/21 ECCS Instrumentation 3.3.3.1 Table 3.3.5.1-1 Emergency Core Coolino System Instrumentation (Pour Channel Functions)

FUNCTION APPLICABLE CONDITICWS SORVEILLANCE ALLOWARLE MODES REFERENCED REQUIREHENTS VALUE FROM I REQUIRED

, ACTION C.1 1

. 6- Drywell Pressure-- High (A-D) 1 4. RER - LPFL A 1.2.3 I SR 3.3.5.1.1 5 [ ] psig b, pHK = LPFL 0 SR 3.3.S.1.2 i c . RER - LPFL C SR 3.3.5.1,4

d. EPCF B SR 3.3.5.1.5

e. EPCF C SR 3.3.5.1.6

!. RCIC 1.2(c).3(c) I SR 3.3.5.1.1 5 [ ] peig

' SR 3.3.5.1.2 SR 3.3.5.1.4 SR 3.3.5.1.5 SR 3.3.5.1.6 4

g. - 4- 1.2(b),3(b) F SR 3.3.5.1.1 5 [ ] paig h o' SR 3.3.5.1.2 SR 3.3.5.1.4 i

SR 3.3.5.1.5

(

') Reau.' steam Mme Pressure-- Low. Injection Permissive (Wide Range A *))

a. RER = LPFL A 1,2,3 I SR 3.3.5.1.1 21 1 peig b . RER - &PFL B SR 3.3,5.1.2 and c . RER - LPFL C SR 3.3.5.1.4 5 ( ) psig SR 3.3.5.1.5 8 Condensate Storage Tank Level. Low, Suction Swapover (A-D)

a. RCIC 1.2(c).3(c) C SR 3.3.5 1.1 2 [ } inches SR 3.3.5.1.2 SR 3.3.5.1.3 SR 3.3.5.1.5

b. EPCF B 1.2,3,4(a),5(a) C SR 3.3.5.1.1 2 [ 1 inches

c. NPCF C SR 3.3.5.1.2 SR 3.3.5.1.3 SR 3.3.5.1.5 i

S (continued).

5.'15/92 3.3.5.1-7 ABWR STS neu sae-su s es, e -is-;; _ce:2e tu r;I

J1AY 15 '92 04 26Pt1 G E tOCLEAR BLDG J P.11/21

.. ECCS Instrumontation 3.3.5.1 Table 3.3.5.1-1 Ert.ergency Core Cooling System Instrumentation (Four Channel Functions)

FUN 02 ION APPLICABLE CONDITICNS SURVEZLLANCE ALLOWABLE MODES REFERENCED REQUIREMENTS VALUE FROM REQUIRED ACTION C.1

3. Enactor vessel Water Level-- Low Low, Level 1.5 (Wide Range E=H)

a. MFCF B 1,2, 3, 4 ( a ) , 5 ( a ) I SR 3.3.S.2.3 2 ( ) inches

b. BPCF C SR 3.3.5.2.2 SR 3.3.5.2.4 liR 3.3.5.2.5 SR 3,3,5.2.6 c . AD S A Inhibit 1,2 (b) ,3 (b) D SR 3.3.5.1.1 2 ( ) inches

d. ADS B Inhibit SR 3.3.5.1.2 SR 3.3.5.1.4 SR 3.3.3.1.5

4. Feact or vessel Water Laval-- Low Low, Level 2 (Wide Range A-D)

a. RCIC 1, 2 ( c ) . 3 t c ) I SR 3.3.5.2.1 2 ( ) inches SR 3.3.5.2.2 SR 3.3.5.2.4 SR 3.3,S.2.5 SR 3.3.5.2.6

b. Reactor vessel Water Level-- High. Level 8

$ l Narrow Rartge A-D)

e. RCIC 1,2(c),3(c) '

SR 3.3.5.2.1 5 ( ) inchen SR 3.3.5.2.2 SR 3.3.5.2.4 SR 3.3.S.2.5

b. RPCT B 1,2, 3, 4 ( a ) . 5 ( a ) I SR. 3.3.5.2.1 5 [ ] inches

c. HPCF C SR 3.3.S.2.2 SR 3,3.5.2.4 SR 3.3.5.2.5 (continued) 5/15/92 3.3.5.1-6 ABWR STS rrce 4:e-ne t ee? ' ce-it-n cei:e ru rit

,t%Y 15 '92 Odi26Pt1 G E tiXLEAR BLDG J P.10/21 ECCS Instrumentation 3.3.5.1 Table 3.3.5.1-1 Emergene; Core Cooling System Inetrumentation (Four Channel Functions)

FUNCTION APPLICABLE CCNDITIONS SURVEILLANCE ALLOWABLE MODES REFERENCED REQUIREMENTS VALUE TRoM REQUIRED ACTION C.1 1 Reactor Vessel Water Level == Low Low Low. Level 1 (Wide Range A-0)

4. RER - LPFL A 1,2. 3. 4 ( a) , $ ( a ) I 3R 3.3.5.1.1 2 ( ) inches

b. RER - LPFL C SR 3.3.5.1.2 SR 3 . "3 . 5 .1. 4 SR 3.3.5.1.5 SR 3.3.S.I.6 c AOS A 1.2(bl.3(b) D SR 3-.3.5.1.1 1 ( ) inches SR 3.3.5.1.2 SR 3.3.5.1.4 SR 3.3.5.1.5

2. Peactor Vessel Water Level-- Low Low Low, Level 1 (Wide Range E-B)

a. RER - LPFL B 1.2,3,4(a).5(a) I sR 3.3.5.1.1 2 ( 1 inches SR 3.3.5.1.2 SR 3.3.5.1.4 SR 3,3,$ 1,$

SR 3.3.5.1.6 b AOS B 1,2(b) 3(b) D 3R 3.3.5.1.1 2 [ } inches SR 3.3.5.1.2 SR 3.3.5.1.4 SR 3.3.5.1.5 (continued) 5/15/92 3.3.5.1-5 ABWR STS r aev .t ce-ne i c e? es-is-n c e : n nt rto

,f1AY 15 '92 04825Pt1 G E f0 CLEAR BLOG J P.9/21 ECCS Instrumentation 3.3.5-.1 SURVE:LLANCE REQUIREMENTS

NOTES----------------------------------

1. Refer to Tables 3.3.5.1-1 and 3,3.5.1-2 to determine which SRs shall be performed for each ECCS function.

2. A channel may be placed in an inoperable or bypass stetus for up to 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months for required surveillance testing.

SURVEILLANCE FAEOUENCY SR 3.3.5.1.1 Perform CHANNEL CHECK. 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months SR 3.3.5.1.2 Perfcrm CHANNEL FUNCTIONAL TEST. [92] days SR 3.3.5.1.3 Perform CHANNEL CALIBRATION. (92) days SR 3.3.5.1.4 Perform CHANNEL CALIBRATION. [18) months SR 3.3.5.1.5 Perform LOGIC SYSTEM FUNCTIONAL TEST. (18] months a

SR 3.3.5.1.6 Demonstrate the ECCS RESPONSE TIME is (18] months on Within limits. a STAGGERED

! TEST 3 ASIS 5/15/92 3.3.5.1-4 AswR STS

.. .. . . . . ... .. .... Fren 4ce-9.;it m . 05-:5-92 c e r ;;_ p t__ __ rc3 _ _

,MAY 15 '92 04125PM G E MJCLEAR BLDG J P.8/21 ECCS Instrumentation 3.3.5.1 CONDITION REQUIRED ACTION COMPLETION T_IME T. Required Actions and T.1 Declare all ADS Immediately associated Completion valves inoperable Times of Condition D or E not met.

C.3 As required by Required Action C.1 and referenced in Table 3.3.5.1-1.

G. As required by G.1 Align the affected 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months Required Action C,1 subsystem (s) pump .

and referenced in suction ~to the Table 3.3.5.1-1. suppression pool.

H. As required by H.1 Restore channel to 7 days Required Action Cs 1 OPERABLE status, and referenced in Table 3.3.5.1-2.

1. Required Actions and I.1 Declare the Immediately associated Completion associated Times of Ocndition G subsystem (s) or H not met, incperab3e.

OE As required by Required Action C.1 and referenced in Table 3.3.5.1-1.

5/15/92 3.3 5.1-3 ABWR STS F F CT! 406-3251'??

0*-1?-92 _0?!:e_TM

_ ___ _ T C P

y y ,m y7 g - .

. ECCS Instrumentation 3.3.5.1 CONDITION REQUIRED ACTION COMPLETION TIME C. Three or more C.1 Enter the Immediately channels inoperable Condition for ECCS functions in referenced in Table 3.3.5.1-1. Table 3.3.5.1-1 or 3.3.5.1-2 for the C2 function.

One channel inoperable for ECCS functions in Table 3.3.5.1-2 CE Required Actions and associated Completion Times of Condition A or B not met.

D. As required by D.1 Verify automatic 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months Required Action C,1 actuation and referenced in capability in at Ta'cle 3.3.5.1-1 or least one ADS Table 3.3.5.1-2. subsystem M

D.2 Restore automatic 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months actuation capability in both.

ADS subsystems E. As required by E.1 Disable ADS 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months Required Action C.1 permissive and referenced in function for Table 3.3.5.1-2. affected channel M

E.2 Verify at least 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months three OPERABLE ECCS subsystems capable of supplying ADS permissive signals (continued) 5/15/92

3.3.5.1-2 ABWR STS FPCM 400-92"If*7 05-15-9 06:06 FM T0"

,fNY 15 '92 04:24Pf1 G E f0 CLEAR BLDG J P.6/21 ECCS Instrumentation 3.3.5.1 3.3 INSTRUMENTATION 3,3.5.1 Em reency co e c - o ' i '.o -

E y " e m ECCE1 I n " r""* ""

LCO -3.3.5.1 Four ECCS instrumentation trip channels for each function in Table 3.3.5.1-1 and one ECCS instrumentation trip chhnnel for each function in Table 3.3.5.1-2 shall be CPERABLE.

APPLICABILITY: According to Tables 3.3.5.1-1 and 3,3.5.1-2.

ACTIONS e

No r--------------------------------

Seperate Ccndition entry is alicwed for each ECCS function CONDITION REQUIRED ACTION '

COMPLETION TIME A. One trip channel A.1 -------NOTE-------

inoperable for ECCS LCO 3.0.4 is not functions in Table applicable.

3.3.5.1-1. ------------------

Place channel in 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months bypass or trip.

AND A.2 Restore channel to Prior to OPERABLE status, entering MODE 2 following next MODE 5 entry.

B. Two trip channels S.1 Place one channel l hour in0perable for ECCS in. bypass _and the functions in Table other in trip.

3.3.5.1-1.

Allt 3.2 Restore one Prior to channel to completion of.

OPERABLE status, the next CHANNEL FUNCTIONAL TEST (continued) 5/15/92 3.3.5.1-1 ABWR STS l

F E C M . 4 C ? - 9 0

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f1AY 15 '92 04:24PMGENUCLEARBLAJ P.5/21 3.3.5.1 is no longer required. Alternatively, loss of some instrumentation and logic would only necessitate manually performing a lequired iteration that under the degraded conditions would no longer occur automatically (e.g. aligning RCIC to its safety related suction source, the suppression pool). Such actions for ABWR mimic very closely those specified in the BWR/6 ITS.

The Surveillance Requirements for ECCS instrumentation are virtually identical to those in the BWR/6 ITS. Minor modifications are made to reflect minor design differences, however, the intent is the same regarding scope and content.

LCO 3.3.5.2 ECCS Actuation Logic This LCO covers the bulk of the ECCS logic aside from the actual instrumentation and associated setpoint comparison and digital trip signal initiation. Although the equipment differs from past BWR designs, the system is effectively the same in how it functions and with regards to technical specifications. Basically, if the initiation logic is inoperable, then the associated hardware must either be put in a safe' state and/or declared inoperable. With one output logic channel-in a given_ subsystem pair out of service, the channel is put in the trip / bypass state and the logic reverts to-one out of one based on the status of the remaining logic channel. !n many cases this will occur automatically as a result of system self testing if a fault is detected. If a logic channel is determined to be inoperable, it must be verified to be in the trip / bypass state (or placed there),

resulting in a one-out-of-one logic. This state results in a more reliable logic configuration for initiation, but is also ecre prone to inadvertent actuations. Therefore, the channel must be returnet to OPERABLE status within 30 days. As most repairs are expected to be simple, restoration would'be expected to be made as soon as practicable. For plant availability reasons, it would be in the operator's best interest to restore operability and return to a two out of two logic configuration as quickly as possible given the increased probability of inadvertent actuation in a one out of one configuration. With both output logic channels inoperable, corrective action and/or cascading to the associated hardware LCC would be required immediately.

Required surveillance testing is equivalent to current BWRs for this portion of the LCO, consisting of-_ CHANNEL FUNCTIONAL and LOGIC SYSTEM FUNCTIONAL TESTS.

5/15/92 B 3.3.5.1-3 ABWR STS JEp: 40s-9Mie n cen t-9: 05:06 rx roe

MAY 15 '92 04223PM G E NUCLEAR BLDG J P.4/21 4

3.3.5.1 The actual ECCS instrumentation for ABWR is very similar to that in recent BWR designs with essentially the same variables providing trip input. However, the LCO has been separated into two separate LCOs, borrowing from how digital systems are treated in the CE and B&W ITS products. LCO 3.3.5.1 deals with the actual instrumentation, as well as the associated setpoint trip determination donc at the DTM level, and for both four channel and single channel instrument inputs. This LOO then is essentially limited to issues concerning instrumentation and the verification that trips occur at the proper variable setpoints. LCO 3.3.5.2 deals with the automatic output trip logic performed at the SLU 4

level, including manual initiation. This latter LCO covers l the output logic that actually affects system actions such as pump start and valve repositioning.

i LCO 3.3.5.1 ECCS Instrumentation This LCO deals with the OPERABILITY of instruments and instrument trip channels, including setpoints. The LCO uses the familiar instrument table -(only now there are actually two tables) where setpoint values, Applicability requirements and Required Surveillances are specified. However, the i tables are now arranged by variable, to reflect the fact that the same instrumentation is used to supply initiation sionals to multiple subsystems. For those variables that are monitored by four instrument channels, all four are required to be OPERABLE (see Table 3. 3. 5.1-1) . However, with one

instrument trip channel out of service, the channel (or

~

divisien of sensors) can be bypassed and the logic-i automatically r'vertse to two cut of three in all corresponding subsystem actuation logic. Alternately, the channel could be tripped, which effectively results in a one .

out of three logic. Either is an acceptable-long term conditien at the instrument trip channel level as there would still be sufficient redundancy at the trip output logic and aanual actuation levels.

The intent of the Required Action is to assure adequate protection but without forcing an urneeded shutdown:to repair equipment that might not be readily accessible during operation. Of course, most repairs are likely to be simple card or other electronic subassembly replacements-thct can be done on-line with the affected division of sensors in bypass.

In such cases, restoration should be done as soon as

-practicable. With two channels out, one is bypassed and the other tripped, resulting effectively in an one out of two configuration for the remaining channels. This situation is acceptable for a shorter duration. For variables monitored by only a single instrument channel, that channel must be OPERA 5LE or else more immediate action is required.

Failure to meet Required Actions would generally necessitate cascading to the LCO for the subsystem (s) affected by the inoperable instrumentaticn or logic, or by placing the plant in an operating mode, or conditions, where the ECCS subsystem 5/15/92 B 3.3.5.1-2 ABNR STS Pren 4ee-s giee7 ,,

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.MAY 15 '92- 04123PM G E fUCLEAR BLDG L ,

P.3/21'

, 3.3.5.1:

Abbreviated Discussion of ABWR Baees - ECCS Instrumentation The ABWR ECCS actuation instrumentation system uses digitally multiplexed instrument channels and associated digital _ trip logic. In general,.four separate instrument divisions are used to monitor the required variables for. determining the need for ECCS actuation, however, some individual subsystem permissive logic utilises single instrument channels - (e .g.

pump discharge pressure). The:LCO has therefore been written to handle single channel and four channel instrumentation separately. For the four channel cases,the system utilizes four separate logic channels to perform the required trip _

determination. This occurs within the divisional Digital Trip Modules (DTMs) . Each divisional DTM receives input from the instrumentation in that'same division for each variable monitored. For analog variables the.DTMs make the_ trip /no-trip decision'by comparing a digitised analog value against'a-setpoint and initiating a trip condition for that. variable if the setpoint is exceeded. In cases where_the trip determination is.made by the monitoring element itself (e.g pressure switch) the DTM simply passes on the signal in the form of a trip /no-trip output. The output of the four divisional DTMs-(a trip /no-trip condition) for each variable-is then routed to the appropriate ECCS' subsystem (s) initiation' logic. Single channel variablesinputs are also routed to the individual subsystem logic, as appropriate.

The two out of four trip decision is made by the individual ;

ECCS Safety System Logic Units (SLUs), . which are arranged in '

redundant pairs for each of the three divisions of_ECCS equipment. Thus, there are a total of Sir ECCS SLUs providing initiation logic for.the six ECCS pumping subsystems and two divisions of ADS. Each SLU receives the-appropriate variable input (tripped /not-tripped) from.each of the four divisions of DTMs.and-then performs.the required two out of four initiation logic determination. For multi -

variable _ inputs the decision.to actuate the affected equipment is made on a per variable-basis such that, for the four channel variables, setpoint exceedence in two instrument-divisions for the same variable is required to _ initiate an actuation signal. This trip determination occurs simultaneously-in both SLUsJin=a-given division for an affected subsystem and at essentially the same time in affected subsystems of other divisions. Single instrument channel trip inputs are.rcuted to both SLUs in the appropriate divisional pair (s), each of which performs its own trip determination for the associated; variable. In;all cases, a trip in both of the SLUs of1a subsystem pair?is required to initiate that particular subsystem or to cause the desired action to:take place (e.g. minimum flow valve opening). Thus, at the output stage,-the logicLis two out of two on an individual output command basis.

5/15/921 B 3.3.5.1-1 ABWR STS I

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DRAFT PROPOSED ABWR TECHNICAL SPECIFICATIONS SECTION 3.3.5.1/2 ECCS ACTUATION INSTRUMENTATION / LOGIC Attached are proposed technical specifications for the ABWR ECCS Instrumentation. As discussed in the previous RPS submittal, these specifications were developed from the BWR/6 Improved Technical Specifications (ITS) and adjusted for relevant design differences in the ABWR. It was intended to retain the look and feel of the BWR ITS to the maximum extent practical. When departures were necessary to reflect design or performance differences, the ITS products for the other vendor designs were utilized whert propriate. The attached specifications do not yet address the issue of redundant feature (cross train) operability since the resolution of how this subject will.be addressed in the ITS program is still being finalized. It is intended that the attached specifications for ABWR will be modified accordingly once a final resolution under the ITS program has been reached.

With regards to instrumentation systems, the ABWR uses input from many of the same variables as with past BWR designs. Thus, to a gr*st extent, the basic technical specifications have remained the same. However, the logic and processing of input is done with digital technology that is a departure from past BWR practice. in that regard it is very similar ta the technology used in other vendor designs. Thus, their ITS products were used as a basis for some of the modifications that were made to the ABWR specifications and are reflected in the example attached. Included with the attached specifications are very abbreviated bases intended to provide general insight into the proposed specifications, with particular emphasis on differences from, recent past practice. These descriptions are in no way meant to be a substitute for the full blown bases which are to be provided in a future submittal. The intent of this submittal-is to provido the NRC staff with an indication of the direction GE is headed in the Instrumentation area of Tech Specs and to seek early feedback.

FPOM 409-9051tB7 05-15-92 06::* FM F00

ML20101G680

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