Text

Proposed Tech Specs Re Response to NRC Reactor Sys Branch RAI Re AP600 TS
	ML20198G595
Person / Time
Site:	05200003
Issue date:	08/27/1997
From:	; WESTINGHOUSE ELECTRIC COMPANY, DIV OF CBS CORP.
To:	;
Shared Package
ML20198G588	List: ML20198G595; NSD-NRC-97-5278, Forwards Responses to NRC Reactor Sys Branch RAIs on AP600 Ts,Including Resultant Ssar/Ts Markups;
References
	NUDOCS 9709040170
	Download: ML20198G595 (42)
	v • d • e

- - - - - - - - - - - - - - - - _ _

RESPONSES TO NRC REQUEST FOR ADDITIONAL INFORMATION

'i 8

Technical Specification and Other SSAR Markups Resulting from Response to RAIs 440.667 through 440.674 (Note that changes to 3.3.2 are being provided with letter DCP/NRC0987 in response to NRC I&C Branch comments provided during a June 9,1997, meeting in Rockville, MD.)

9709040170 970827 PDR ADOCK 05200003 4 440.667 through 440.674, page 9 3 Westinghouse

a. __

.-Revised Technical Specification Definitions pl l -I

-ACTUATION LOGIC TEST An ACTUATION LOGIC TEST shall be the application of various simulated or actual input combinations in conjunction with ea-h possible interlock state and verification of the required-zlogic output. The ACTUATION LL 'C TEST shall be conducted such that it provides component overlap with the-ACTUA. ON DEVICE TEST. These two types of tests demonstrue that the actuated device would have responded to a simulated actuation signal.

ACTUATION DEVICE TEST F An ACTUATION DEVICE TEST is a test of the actuated equipment. This _ test mhy_ consist -

of verification of ctual operation but _shall,at a minimum, consist of a continuity check of the -

- associated i Uevices. The ACTUATION DEVICE TEST shall be conducted such that it provides component ove(lap with the. ACTUATION LOGIC TEST. These two types of tests demonstrate that the actuated device would have responded to a simulated actuation signal.

For actuated equipment included in the Inservice Test (IST) Program, the Inservice. Tests can

- be used as - the ACTUATION DEVICE TEST.

9 S

l d

. Accumulatorg

3.5.1 SURVEILLANCE REQUIREMENTS (continued)

FREQUENCY SURVEILLANCE Verify the boron concentration in each 31 days SR 3.5.1.4 accumulator is 2 2600 ppm and AND 1 2900 ppm.

.....N0TE...

Only required for affected accumulators.

Once within 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months after each solution volume increase of 1 51 cu. ,

,ft., 3.0 %

Verify power is removed from each 31 days SR 3.5.1.5 accumulator isolation valve operator when pressurizer pressure is 1 2000 psig.

( ,

/cVfWRS f(ow Verify system (performance of each accordance'i SR 3.5.1.6 }vit h e,-

accumulator in accordance with the Inse3y (

jinan vice Testing Program.

' Testing _P_N_ ram l

L s>s reouiwas-c?PEtMst 7sy 4

~.

3.5 3 08/96 Amendment 0 (b)AP600 m is ~ i.uo.oi - a

I CMTs - Operating

. 3.5.2 SURVEILLANCE REQUIREMENTS -n FREQUENCY SURVEILLANCE 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months SR 3.5.2.1- Verify the temperature of the borated water in each CMT is < 120*F.

') Mv3 M ha,a SR 3.5.2.2 Verify the borated water volume in each CMT is 1 2000 cu. ft.-

lb ,

Verify each CMT inlet isolation valve is hours SR 3.5.2.3 fully open.

OE VolwC. gases 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months SR 3.5.2.4 Verify abeense of non-condensible.Mer

-t P1xh c MT i in th; high siat . b 3 li M. is E bO.O 7 days Verify the boron concentration in.each

[ SR 3.5.2.5 CMT is 1 3400 ppm, and i 3700 ppm.

In accordance SR 3.5.2.6 Verify each CMT outlet isolation valve with the is OPERABLE by stroking it open.

Inservice Testing Program to YEAR.S ft w ccordance/

Verify system, performance of each CMT in SR 3 . 5 . 2 . 7.- accordance with theg iusu vics Testing with Inser T ef l Program. am,

- [est' g Pr OPttnatt s7's 3.5-6 08/96 Amendment 0 h AP600 mu i - i.ames

PRHR HX - Operating

. 3.5.4 ACTIONS (continued)

COMPLETION TIME CONDITION REQUIRED ACTION

/.1 Be in MODE 3. A hours k Required Actions Conditions A, B, C r AND

% not met within th p required Completion M hours Times. f.2 Be in MODE M t8' N '

WE 4c3 castep #f

& ME W5 .

L;0 a;t =t fa-c;.;;as ;t M han-Ar e, C, ^, ei C.

IDSMMhMxkpt$/ .

= SURVEILLANCE REQUIREMENTS FREQUENCY SURVEILLANCE hours SR 3.5.4.1 the outlet manual isolation valve-Verifilyopen.

is fu ,

12 Verify the inlet motor operated 2(hours SR 3.5.4.2 isolation valve is open.

ihD Vclust 24 hour2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months s-3.5.4.3 ' Verify abeenee of non-condensible gases

-SR in the H e ;;iat ..a: PR%R HX inld

\iM 'ES h. (0 '0 W .

In accordance SR 3.5.4.4 .

Verify both PRHR air operated outlet with the isolation valvekare OPERABLE by Inservice ro ing open the valves. ** "9 ' 9 ""

Mo 847s /RosT Gu77Et /see dnow v4Lvns gewr rW5FEAL accor Ice VerifyPRHRHXhrformanceinaccordance SR 3.5.4.5 withthefrie:rviceTestingProgram.

Ins ice !0 ' #($

L T tin rogram Srgg4Ev54.

m.y. my/785 stt. 3.S . % 4 YEhF181 v6uM tasPEcrimt 7warTH2

/RWST Gurrs,gS ME p.- Res-Woerno By DE34ts.

3.5-10 08/96 Amendment 0 h AP600

-e w 3 -

. C$nm 'S h

~

T 1* G 3 ,S -/ 0 ACTIONS

\

CONDITION REQUIRED ACTION COMPLETION TIME E. LCO not met for E. Restore PRHR HX to 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months reasons other than A, OPERABLE status.

B, or C.

F. Required Action and F.1 .. . . . . . .. . .. N OTE . . .. ---....

associated Completion Prior to initiating actions to Time for Condition Ex change to a lower MODE, Ab7 p197, verify that 60. 3:'"' ;;;.p.' =redudbok N65 f are operable. Ifi:S SfW gfn SG-r

@ dad ruans immte are not operable,

suspend LCO 3.0.3 and all other LCO Required Actions requiring MODE changes

^

until '_ ^_ '_'__ C U"'

__ , . -,"~ are -

restored to operable status. ,

Be in MODE 3. 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months hED F. 2 .~.. . ........ NOTE . .-~...- .. .

Prior to stopping the GPW SG ggd er p=; feed that M^ :We100, verify : r dank WE00s cf Coo \ ins cinot:reerte5: dos,edv he fLC.S 40 cdd 60

-m. .. .F";5.~f,u =9" CSS .. vvo nA; shutdo m (e d h0^5

..d M S S"'S .;~'..... - .

fans are operable. If hee-redudat NSBC are not operable, suspend LCO 3.0.3 and all other LCO Required Actions requiring MODE chan es until t'::: SSCCar restored to operable status.

Be in MODE 4 with the RCS 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months cooling provided by the RNS.

IRtfST Operating 3.5.6 3.5 PASSIVE CORE COOLING SYSTEM (PXS) 3.5.6 In-containment Refueling Water Storage Tank (IRWST) - Operating LCO 3.5.6 The IRWST, with two injection flow paths and two containment recirculation flow paths, shall be OPERABLE.

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

ACTIONS REQUIRED ACTION COMPLETION TIME CONDITION One motor operated A.1 Restore containment 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months A.

containment recirculation motor recirculation operated isolation valve isolation valve to OPERABLE status, inoperable.

One motor operated B.1 Close motor operated 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months

( B.

containment containment recirculation recirculation isolation isolation valve not valve.

fully closed.

8 IRWST = ter vci re, C.1 Restore IRWST to +t' hours C.

boron concentration, OPERABLE status, or water temperature not within limits.

(- -_

1 1 D. One motor operated 0.1- Restore motor operated # hour /

1RWST isolation valve IRWST isolation valve to not fully open. fully open condition.

I (continued) rg J IRusT wnrM veLM*KE

.4 loo */o A N O > 9 7 X O F L)M nT .

~

h AP600 3.5-13 08/96 Amendment 0

. o - m o.a m

1RWST . Operating a 3.5.6

-ACTIONS-(continued)

CONDITION- -REQUIRED ACTION COMPLETION TIME E. Required Actions-and E.1 Be in MODE 3. hours associated Completion Times of Conditions A AND B, C, or D not n.et. 5 3I' -

p(hours E.2 Be in MODE /.

9.8 LCO not met for reasons other than A, B,'C, or D.

-SURVEILLANCE REQUIREMENTS SURVEILLANCE ' FREQUENCY u SR 3.5.6.1 Verify-the IRWST water temperature is 24' hours 4

< 120*F.

SR 3.5.6 2 Vyify th3 IRWST borated water volume is Y g'I/- gg

>g557,00f gallons.

SR 3.5.6.3 Verify the IRWST boron concentration is 31 days 2 2600 ppm and 1 2900 ppm.

ANO Once within 6 .

hours after each solution volume increase of 15,000 gal . ,

3.0%

(continued)

Ap600 3.5-14 08/96 Amendment 0

.oi - mm om-

l IRusT Operating 3.5.6 l

SURVEILLANCE REQUIREMENTS (continued)

FREQUENCY SURVEILLANCE Verify each motor operated IRWST 2)24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months SR 3.5.6.4 isolation valve is fully open.

31 days SR 3.5.6.5 Verify power is removed from each motor operated IRWST isolation valve.

Si odys Verify each containment recirculation M bcucs -

SR 3.5.6.6 isolation valve is fully closed.

Verify each motor operated containment In accordance SR 3.5.6.7 with the-recirculation isolation valve is inservice OPERABLE by stroking open the valve.

Testing Program

( -10 yen /S y Verif IRWST injection and recirculation I accordance '

SR 3.5.6.y ut the/

ys em, performance in accordance with [nser te ftts>J the Inservict Testing Program.

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3.5-15 08/96 Amendment 0 h AP600

IRWST - Shutdown. RCS Inventory High '

J.S.7 3.5 PASSIVE CORE COOLING SYSTEM (PXS) 3.5.7 In containment Refueling Water Storage Tank (IRWST)'- Shutdown, D.CS Inventory High The !RWST, with one injection flow path and one containment LCO 3.5.7 recirculation flow path, shall be GPERABLE.

MODE 5 with RCS pressure boundary intact APPLICABILITY: MODE 5 with RCS open, visible level in pressurizer.

ACTIONS COMPLETION TIME REQUIRED ACTION CONDITION Restore required motor 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months One required motor A.1 A. operated containment operated containment recirculation isolation recirculation valve to OPERABLE isolation valve status.

inoperable, t Close required motor 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months Required motor B.1 B. operated contairnment operated containment recirculation isolation recirculation valve.

isolation valve not .

fully closed.

8 C.1 Restore IP.WST to X hours C. IRWST ==__. OPERABLE status, boron concentration, or water temperature

.not within limits, ~

y I

l Restore required motor Ihourg Required motor D.1

0. operated IRWST isolation

\ operated IRWST valve to fully open 1 isolation valve not condition.

i fully open.

\ (continued) i p 2S IRW5T WA~5A v'eLumE

( - L /Du % Ado > 17 h aF Armo T. )

3.5-16 08/96 Amendment 0 AP600

IRWST - Shutdown, RCS Inventory low 3.5.8 L

3.5 PASSIVE CORE COOLING SYSTEMS L 3.5.8 In-containment Refueling Water Storage Tank (IRWST) - Shutdown, RCS Inventory low-LCO 3.5.8 The IRWST, with one injection flow path and one containment recirculation flow path, shall be OPERABLE.

APPLICABILITY: MODE 5 with RCS open, level not visible in pressurizer;

"+--a=le 4a alace W cr>4t; le.el ic .

MODE 6 "" ---

4Mn f uM .

ACTIONS CONDITION REQUIRED ACTION COMPLETION TIME A. One required motor A.1 Restore required motor 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months operated containment operated containment recirculation recirculation isolation isolation valve valve to OPERABLE inoperable, status.

(

B. Required motor B.1 Close required motor 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months operated containment operated containment recirculation recirculation isolation isolation valve not valve.

fully closed.

AudRspwr e cNew C. IRWST rat:r ;;iu ;, C.1 Restore IRWST to hours boron concentration, OPERABLE status.

or watef temperature not within limits.

I D. Required motor D.1 Restore required motor ghour/

operated IRWST operated IRWST isolation isolation valve not valve to fully open fully open. condition.

i (continued) s QA

' N IRu.]s7 AMO REFu2DM CAh7'1 W9754 v'0Us#5

% dag > 17 % a7 bes7.

3.5-18 08/96 Amendment 0

. 3.58 ACTIONS [contipaed) ,

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LcO 3.5.6 T PG '$. S SURVElllANCE REQUIREMENTS (' y .

FREQUENCY SURVEILLANCE py/O Rt W % c NeTy Verify the IRWST ater temperature.is 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months SR 3.5 .1

< 120*F.

4 AWO RchkN4 CA*!aT1 7eTM. r -.r g gyMcutS e

ify t IRWST g borated water volume is M he n SR 3.5.5.2 V

> 57,00 gallons.

A.,o R EFu b u

4 C N 8 N l 31 days Verify the IRWSTx boron concentration is SR 3.5f.3 > 2600 ppm and 1 2900 ppe. AND

- Once within 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months after each solution volume increase of 15,000 gal.,

3.0%

(continued) s l

3.5-14 08/96 Amendment 0 b AP600

. PCS Operating 3.6.6 SURVEILLANCE REQUIREMENTS (continued)

. SURVEILLANCE FREQUENCY

~

2.+ memd S @

SR 3.6.6.4 Verify each passive containment cooling accord ce system automatic velve in each flow path w th that is not locked, sealed, or otherwise Ins ce secured in position, actuates to the Te 1 a correct position on an actual or simulated ogram actuation signal.

SR 3.6.6.5 Verify the air flow path from the shield 24 months buildina annulus inlet to the exit is No )7F ALL dat unobstructed' nd tht the inspectien p;rts sal *FLt $9eTro6 s. su,. ,

.t. . O.- e. r. s. ..,. 1. .. .

. ..a (Fuw pao s esA. cu EUG E ,, yg g g SR Verify passive containment cooling system accord ce 3.6.6.6 ] p erformance in accordance with the w h th 3:n;;r;i:: Testing Program. . Ins r ce i i Tes ng SM*41 LEJE L. O PM A6 n r Ty p7 g7 ,

H AP600 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

3.6-16 08/96 Amendment 0

Passive Autocatalytic Hydrogen Recombirars

.e 3.6.10 SURVEILLANCE REQUIREMENTS FREQUENCY SURVEILLANCE . _ _

Visually examine each PAR enclosure and Inaccordand s

SR 3.6.10.1 ensure there is no obstruction or wit}t the /

blockage of the inlets or outlets.* Systsm. Level y foera k \

x SR 3.6.10.2 Perform a surveillance bench test on a 6 accordan ' \i specimen removed from each PAR,tm wit the k N ~

Testing 3-Vrogra

~

h AP600 3.6 2 Draft

Main Control Rooa Habitability System (VES)

. 3.7.6 SURVEILLANCE REQUIREMENTS (continued)

SURVEllLANCE FREQUENCY SR 3.7.6.8 Verify that the self contained pressure in accordance regulating valve in each VES train is with the OPERABLE. Inservice Testing Program SR 3.7.6.9 Verify that one VES air delivery train (secordance--~bf s

j maintains a positive pressure in the wi$h,tp',t -

MCR, relative to the adjacent areas, at (f the required air addition flowrate. iskoNv Te n o 14

, 3.-

e* -

(

(hhAP600 3.7 14 08/96 Amendment 0

Accumulator:

B 3.S.1 BASES (

APPLICABILITY In MODES 1 and 2, and in MODES 3 and 4 with RC5 pressure

> 1000 psig, t e accumulator OPERABILITY requirements are based on full power operation. Although cooling requirements dterease as power decreases, the accumulators are still required to provide core cooling as long as

elevated RCS pressures and temperatures exist.

This LCO is only applicable at pressures > 1000 psig. At pressures 11000 psig, the rate of RCS blowdown is such that adequate injection flow from other sources exists to retain peak clad temperatures below the 10 CFR 50.46 limit of 2200*F.

In MODES 3 and 4 with RCS pressure 11000 psig, and in MODES 5 and 6, the accumulator motor operated isolation valves are closed to isolate the accumulators from the RCS. This allows the RCS cooldown and depressurization without discharging the accumulators into the RCS or requiring depressurization of the accumulators.

ACTIONS M If the boron concentration, nitreg:n pre;;.re er v;h:; of

- one accumulator is not within limits, action must be taken to restore the parameter.

Badb) w c N it Deviations in th;;; para re ex etted to be slight, considering that the pressure and v une are verified once per 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months . For one accumulator,gn; ;f th::: p;,reaters-not within limits will have an insignificant effect on the ability of the accumulators to perform their safety function. Therefore, a Completion Time ofd si.ye is considered to be acceptable. 72 r/*~~%a~r--~~

~~f g 4 u 3u....... . s p~~

~~B 3.5-7 03/96 Amendment 0~~

~~,,,]{,~~

A

~~_ y~~

~~CMT Operating~~

, 8 3.5.2 BASES ACTIONS M { continued) p w4 cudgigfyy is inoperable, and the deviati s of these parameters are expected to be slight, it is obable that more than a required amount of boron and *tter will be available to meet the condittoas assumed in the safety analysis.

~~Since the CMTs are redundant, safety class components, the 72 Wty Completion Time is consistent with the times normally allowed for this type of component.~~

b.1 8 oK With two CHis inoperable due to ter temperaturef 'Jron concentrationg er n ier ve',.;i, t least one CP' ,.t be restored to within limits inW hours. The de ations in these parameters are expected to be slight, considering the frequent surveillances and control room monitors. A

~~,b P A s--~~

~~I nt Completion lime of Jf hours is considered acceptable since the CMis are expected to be capable of performing their~~

~~. d3fd gh7 safety function with slight deviations in these parameurs.~~

~~dh 8 '~~

~~y e a ~ g d 2 % , e...... *.. _. $L L_f~~

~~,Non condensible gases in a CMT high point v:nt may interfere a~~

with the natural circulation flow (hot water from the RCS through the balance line into the CMT and cold water from the CMT through the direct vessel injection line into the vessel) assumed in the safety analyses for some transients.

~~For CMT injection following a LOCA (steam will enter the CMT through the balance line, displacing the CMT water), gases i~~

in the CMT Wet are nel debimental to the CMT tuncttMrlin A Comple ion Tim of 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months is permitted for r g a g*^jl 2

~~venting Me non condensible gases and is acceptable, since.~~

~~-g fA., for the transients, the nat tral circulation tapability of e~~

~~y4 one CMT is adequate to ensure mitigation assuming less~~

~~%.Ms,,_A g g . conservative analysis assu ptions regarding stuck rods and core characteristics.~~

3

~

~~jn)d l(nq~~

~~.,., A il leer + 6. l~~

~~.r-e ' , W let isolation valves inoperable on one 4'J %. 0 action must be restoreonevgyt.~~

~~p h "d within 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months . With t '~~

~~BLE status rable valves on the same CM1, the cont e CMT can not ed, if he remaining CMT may not be available, (continued)~~

~~Nmu -. B 3.5-11 08/96 Amendment 0~~

~~AP600 B 3.5.2 INSERT PAGE B 3.511 El~~

~~( ith one CMT inoperable for reasons other than Con itio6 A, B,~~

, discharge of the CMT may not be avail . Action must be ta grestore the inoperable CMT RABLE status within 8 houh he remaining C ay not be available,if the

~~( event is a break in i t esse injection line. The 8 hour sidering the low probability of a~~

) Completion Time is ac esel injection line and break in the OPE E CMT's dir that the Probabilistic Risk Assessment (P ef. 3) shows that for this A, one accumulator without CMTs is s nt to cool 5

~~e theore.~~

~~k j 4~~

\

With one CMT inoperable for reasons other than Condition A, B, C D, operation of the CMT may not be available. Action must be tak:n to restore the inoperable CMT to OPERABLE status wkhin 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months . De remaining CMT is sufGcient for DBAs except for LOCA in the OPE' ABLE CMTs DVI line. De 8 hour9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months Completion Time is based on the availability of injection from the accumulators and IRWST lines to provide Si injection. The effectiveness of accumulator and IRWST injection is demonstrated in analysis performed to justify PRA success criteria (Ref . 3). De analysis contained in this reference shows that for a small LOCA tl ese other injection supplies provide adequate core cooling.

M section 9.l.2.1 of reference 3, the analysis shows that for a 3.25" LOCA without the CMTs that injection from one accumulator and one IRWST injection line provides adequate core cooling without significant core heatup. De LOCA analysis was performed wkh the compute: code used to analyze LOCAs in the SSAR (NO'[ RUMP). .'Ihe analysis was performed with conservative inputs and assumptions. Some of these assumptions include multiple failures which would not have to be assumed to support this Technical SpeelGcation Bases, ne multiple failures include the failure of the all ADS stage 1/2/3, one accumulator, three of four IRWST injection valves, and mree of four containment recirculation valves. Although this LOCA is not a DVI LOCA, the failure assumptions are more severe than would be required for a DVI LOCA. Dese additional failures provide significant margin with respect to this LCO.

~~This analysis provides a high confidence that with the unavailability of one CMT the core can be coole4 following desigt, b1ws accidents.~~

CMY Operatirg B 3.5.2 BASES SURVEILLANCE RCS, the injected water temperature and volume will be REQUIREMENTS within the limits assumed in the accident analysis. The (continued) 24 hour2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months Frequency is adequate, based on the fact that no mechanism exists to rapidly change the temperature of a large tank of water such as a CMT. These parameters are normally monitored in the control room by indication and alarus. Also, there are provisions for monitoring the temperature of the inlet and outlet lines to detect in leakage which may affect the CMT water temperature.

SR 3.5.2.3 12 Each CMT ini isolation valve must be verified to be fully open each hours. Frequent verification is considered to be important, since a CMT can not perform its safety function, if the valve is closed. Control room instrumentation is normally available for this verification.

~~5.2.4 .~~

~~IA. M b h W Yerification thofnncondensilega!e$ te A g ' Mrg i f Nf> * ~ " ' "~~

AW is required every 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months . Control room indication of the water level in the,h to verify thabrited gases have n:t d;;id.is ;d available S; .Gr g,q p M M level. The 24 hou on the xpected low and the availa ility o control room rate of gas \g:00r}p o.m - JL Frequency is bas
,i h - c ~kM f ind' . tion. 1 ,
SR 3.5.2.5 ~
J Verification every 7 days that the cron concentration in each CMT is within the required li ts ensures that the reactivity control from each CMT, ssumed in the safety analysis, wl11 be available as re tred. The 7 day -
Frequency is adequate to promptly identify changes which could occer from mechanisms such s in leakage, gg
.- }R3.5.2.6' 4.i. % A M
p....A L Verification that the redundant outlet isolation v'aIves are %L,M OPERABLE by stroking the valves open ensures that each CMT will function as de igned e en these valves are actuated.
M Prior to opehing the outlet isolation valves, the inlet isolation valve should be closed temporarily. Closing the inlet isolation vwive etisures that the CMT contents will not be diluted or heav.ed by flow from the RCS. Upon completion of the test, the inlet isolaiton valves must be opened. The (continued) h AP600 B 3.5 13 i o mum = 08/96 Asendment 0
CMT Operating B 3.5.2 BASES SURVEILLANCE Surveillance Frequency references the inservice testing REQUIREMENIS requirements.
(continu' ?)
SR 3.5.2.7 This SR requires performanc'e of a system performance test of each CMT to verify syste capabilities,e*ch es f b rett.
line The tvstem performance t st demonstrates that the CMT resisbnch injection =;dit.if assumed in DBA analyses is maintained.
Although the likelihood that system performance would degrade with time is low, it is consider Jedud3ni_1.0 periodically verify system performance. I". c re;- -- y
' ' i-a..-_. . . . . - , _ _ . . _
a:.
,q } ~ W f ) J [ [.L M - x .T g REFERENCES 1. AP600 SSAR, Section 6.3, " Passive Core Cooling System."
~~2. AP600 SSAR, Chapter 15. " Accident Analysis."~~
~~3. Fr'o t4trtT4stTD RisirAlsessmentrtAppen4+rb A tcoo (A A T A_.] / H p- - A C- 0 8_.~~
~~fw yU e M'- i + &oo.~~
' P Tu Sp L>A O f
+e x.
~r
+
b AP600 B 3.5-14 08/96 Amendment 0 oi ~ o.omos o m a.
v:
CMTs . Shutdown, RCS Intact B 3.5,3 BASES ACTIONS (continued)
With t motor operated inlet isolation valve not ful open, act must be taken to restore the valve to e fully o>en positio ith the power removed within 24 rs. In tiis Condition, e contents of the CMT can be discharged within required time. The hour Completion Time is acceptable con ering the low obability of a requiring CMT injection a the av ability of the IRWST for RCS makeup.
L.1 With two outlet iso ion valve inoperab action must be taken to restore na valve to OPERABLE statu ithin 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months . I is Condition, the contents of t CMT can not be di arged within the required time. -The 2 our Comple n Time is acceptable considering the low pro ility of a requiring CMT injection and the 11 ability of the IRW5T for RCS makeuo.
/4)5El T C +
Mb c If the Required ion or associated Complet n Time of Conditions A, B, C are not met or the C0 is not met forreasonsotherba Conditions A through Y, action must be initiated, imediately, to place the plant in a MODE where this LCO doe,* not apply. Action must be initiated, imediately, to place the plant in MODE 5 with RCS pressure boundary open and a visible level in the pressurizer. In this condition, core cooling and RCS makeup are provided by IRWST injection and sump recirculation. Opening of the ADS valves ensures that IRWST injection can occur.
SURVEILLANCE SR 3.5.3.1 REQUIREMENTS '
~~The LCO 3.5.2 Surveillance Requirements (SR 3.5.2.1 through 3.5.2.7) are applicable to the CMT required to be OPERABLE.~~
The Frequencies associated with each specified SR are applicable. Refer to the corresponding Bases for LCO 3.5.2 for a discussion of each SR.
REFERENCES 1. AP600 SSAR, Section 6.3, " Passive Core Cooling System."
A h 1. MG00 .10h c M y , w t ce - i+s> 7.
B 3.5 17
]0{ 08/96 Amendment 0 v'
i AP600 B 3.6.3 INSERT ~ PAGE B 3.517 CL1 With the required CMT inoperable for reasons other than x Copdition A or B, discharge of the CMT may not be available as s asium'ad in safety anafysen, Action mtfibbe taken to, restore the i in perahle CMT to OPERABLE status within 8 hour9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months 's. The 8 hour9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months i
}
Completi%
ad event requi Time 'CMTis/noceptabigeonspering injectibnand the availabil %e lowj'ity
/ of theprob
\ akeup.
WST for RC
(
With the required CMT inoperable for reasons other than Condition A or B operation of the CMT may not he availabic. Action must be taken to restore the inoperable CMT to OPERABLE status within 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months . LOCAs are not postulated during the MODES when this
' LCO is applicable. De only safety function is to provide leakage makeup in case nonnal RCS makeup is unavailable. De 8 hour9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months Completion Time is based on the availability of injection from the IRWST to provide Rf'S makeup. De ability of the IRWST to provide RCS injection is demonstrated by analysis performed to show that IRWST injection together with ADS venting provides adequate core cooling. Such analysis was performed for the loss of RNS cooling during mid loop opemtions (Ref. 2). The analysis was performed in support of the AP6(X) Shutdown Evaluation Repor[with the computer code used to analyze LOCAs in the SSAR. The analysis was performed with conservative inputs and assumptions. De analysis showed that the core did not uncover during the accident.
PRHR HK . Operating e B 3.5.4 BASES (continued)
ACTIONS 8.d The outlet line from the PRHR HX is controllei by a pair of nomally closed, fail open, air operated valves, arranged in parallel. Thus they are redundant and, if either valve is OPERABLE, the system can function at 100% capacity, assuming other operability conditions are met.
If one valve is inoperable, a Completion Time of 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months has been allowed to restore the inoperable valve (s) to OPERABLE status. This Completion Time is consistent with the Completion Times specified for other parallel redundant
/05e47 6 + safety related systems.
W
/ At the-inlet pipipg high pgint7there is,Metticaj-ebNber
/w lch serves as'a' collection, point,fsr nonfcondensib .
Pg)ases/ This'collecpoh poiht it-providfd wifh.detecfo which alarm,t6 indicate when,g(ses hafe-t'ollecte(ioth aret/ The presence of/a alarm doernot mean that the PRHR;
/
f7 Hfit imedi'ately inop rable.fbut that gases are collecting and should be vented. The venting of these gases requires
/ containment entry to manually oper, ate M mpspprepHe6e vent
/ valves. A Completion Time of 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months is acceptable considering that passive feed and bleed cooling is available to remove heat from the RCS.
j -
/ If the requ motor operated inlet valve is ully
! open, flow restr in the inlet line e PRHR HX may
/ prevent normal operatio the hea anger.
l The nomal position of valve 11y open, and it is I
only closed durin f periods to tes system. Thus it is unlike at the valve would be inoper r closed.
.- Nevert s, this valve is not redundant, and all to
'. eat exchanger must pass through this valve.
1
.ddA L%PSHRM M M
\ E.Lpw.1aAMthd 1~3 d d~~ hk Ad M L . QL f u). M. Th ~ r1-M gu ~
y b a b ~u 1L ewo -g g, (continued) h AP600 B 3.5-20 08/96 Amendment 0
t AP600 B 3.5.4 E ,\
INSERT PAGE B 3.5 21 L1
( .
With the CO not me for reasons o her than ndition B,or b ePRHR X must be stored withi 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months . he 8 hou Co letion e is accept le based on he availa 'lity of pa ive d bleed e ing to effe RCS heat oval.
F.1 and F.2 If the PRHR HX is not restored in accordance with Action E.1 within 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months , the plant must be placed in a MODE in which the LCO does not apply. This is accomplished by placing the plant in with RCS coolitig MODE 3 provided by the RNS within H hours.within 6 hours and in MODE j,r Action F.1 is modi 5ed by a Note which requires, that prior to initiating cool down of the plant to MODE 3, heth-eteettep d 1-1 ~ '
f;;d;;tsi (0r"/) p a.p b: :nSed ee c,per bh. Withest PRER e-=~2 -
r ;=bh, the unit is in a seriously L L d y, ;
w -
HX degrade r ,d condition with no means for conducting a controlled cool M~ down. In such a condition, the unit should not be perturbed by b. .
f -
Q SG, any action, including a power change, that might result in a trip.
I i ^ ~ , : are not available, the plant should be "h
~~g. g#~~
~~maintained in the current MODE untili /d Actions shall be restored. LCO 3.0.3 and all other Requir~~
~~. 5=' y- =r- are @y ibb suspended until the h* ;" p9te restc red, because they could ~p ,~~
j _J _ d ,[...... force the unit into a less safe cond g _ ,1, 1 A' Action F.2 is modified by a Note which requires, that prior to .
C '- .aatthense stoppinMM"iptr;- 5:-.;d;.x 2 rs;.1 N- / ;n'f:_^2 i::t nr::^! ;,L '"J!O; :;::"'- , b-S ?l!S punp,
Lt N A U" (both component cooling system (C99) p %O [ end both service water system (8589) umgand heat exchangers,
" be ndE;d-es gc r. '
~
44stsage. Without availability of these : :Mr .nd equip::;r. ,
m the unit is in a seriously degraded condition with no means for ).L 3 ~
d niJu [o1g continuing the controlled coohwn. le r_9 : re 'Pien, the un+t
-k~ _ > ::t kpreurh-A '; 4 wti:- !-& din; : p: - -k- y
%a ' 1-k 4et -5't r:2 in : t-ip. Until the r=: - - : i'-- T J are e, g 3 h t,q) restored,9 heat removal using ^' ^""' ?..:-s should be g g __. 9 -
maintained. LCO 3.0.3 and all other quired Actions shall be p ,f/ suspended until the systems and equ ment required for further cool down are restored, because they uld force the unit into a M)d b less safe condition.
Sc (p L,L
/
O PRilR llX liases E.1 Insert MO
With the LCO not met for reasons other than Condition A. B or C the PRl(R HX must be restored within a hours. The 8 hour9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months Completion Time is based on the availability of passive feed and bleed cooling to provide RCS heat removal. De effectiveness of feed and bleed cooling is demonstrated in analysis performed to justify PRA success criteria (Ref . 3). De
uialysis contained in this reference shows that for a range of events including loss of main feedwater. SOTR and small LOCA (as small as 1/2") that feed and bleed cooling provides adequate core cooling.
For estunple, section 6.1 of reference 3 shows that for a loss of main feedwater or a SOTR event without the PR11R llX and no other failures, that feed and bleed cooling provides adequate core cooling without uncovering the core. In section 9.1 of reference 3. the analysis shows that for a 2" LOCA without the PRilR HX that feed and bleed cooling provides adequate core cooling without significant core heatup. The 2" LOCA analysis was performed with the computer code used to analyic LOCAs in the SSAR (NOTRUMP). %c analysis was perfonned with conservative inputs and assumptions. Some of these assumptions include multiple failures which would not have to be assumed to support this Technical Specification 11ases. De multiple failures include the failure of the one CMT, one accumulator, all ADS stage 1/2, one ADS stage 3. two of four ADS stage 4. three of four IRWST injection valves, and three of four containment recirculation valves.
nese analysis provide a high confidence that with the unavailability of the PRHR HX the core can be cooled following design bases accidents.
i
PRHR HX Operating I .
8 3.5.4 BASES SURVEILLANCE SR 3.5.4.1 REQUIREMENTS Verification, using remote indication, that the common outlet manual isolation valve is fully open ensures that the flow path from the heat exchangers to the RCS is available.
Misalignment of this valve could render the heat exchanger inoperable. A hour Frequency is reasonable considering that the valve i manually positioned and has centrol room position indica ion and alarm.
SR 3.5.4.2 f 2.,
Verification that the motor operated inlet valve s fully open, as indicated in the main control room, en res timely discovery if the valve is not fully open. The hour Frequency is consistent with the ease of verification, confirmatory open signals, and redundant series valve controls that prevent spurious closure.
SR 3.5.4.3
)
(Thipresence of non condensible gases in the PRHR HX has the a
Ogb A#1 p 'ential to render the PRHR HX inoperable. Therefore, v rification of the absence of non candensible gases must be c mpleted every 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months . Since the presence of P/' M/'. / on.condensible gases does not automatically render the PRHR HX inoperable, a Survel11ance Frecuenev of 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months is a Qcceptableg SR 3.5.4.4 /p/O Ao74 % fj [
Verification that both air operated outlet valvesgare OPERABLE ensures that the PRHR HX will actuate on command,$
since all other components of the system are normally in the OPERABLE configuration. Since these valves are redundant, if one valve is inoperable, the system can function at 100 %
capacity. Verification requires the actual operation of .
each valve through a full cycle to demonstrate operability.
The Surveillance Frequency is provided in the Inservice j Testing Program, g, .
5.R 3.5.4.5 gQ ria 8 '< "
~~This SR requires performanc of a system performance test of the PRHR HX to verify system capabilitiesA uch n h a',~~
treatfer. The system performance test demonstrates that the PRHR HX capability assumed in accident analyses is QQ (continued)
]{ _, B 3.5 22 08/96 Amendment 0
M tene \ :
M 'J .f.4.3 V4' 1- $.1 u.. .la ,_. _,1 g _ . , 1_ . J,0.
~ 4 A ' t N L '- p q tt b .
T.L JLL LfL PRHR p L . # ,J .f 4 Mn-~
y e2L 4 V n.M 7.c.ze _ m .ge. A u ;* y At . em-A-.JM g h p - mg0 QA t ag y .L 4 m t & M 40.k & A .AA J A L., @. JL M _LO . T0. It L Fy.
u Qm k AJ~L@LA(p J .J s y 4 x u:s .
~ - - - - ~ _ _ . _ _ _
~~PRHK NA uperating~~
- B 3.5.4 a 2.5.e.s cc~ww a <>
SURVEILLANCE maintainea. Although the likelihood that system performance REQUIREMENTS would degrade with tima is low, it is considered prudent to J, t ^^ t h'.; d P periodically verify system performance. li"r :-'t--""^ ^n 5 +, ( --I!> -
I- 7-REFERENCES 1. AP600 SSAR. Section 6.3, " Passive Core Cooling System".
~~2. AP600 SSAR. Section 15, " Safety Analysis".~~
~~3. ,Af500 Propapiiity Rid Auenment. App.ndix A=.~~
b At4co f d A TM / Hp AJ<A 0 E h 0 (- '
puchP-\%00.
>( w a >
~V
~ fV N.
b AP600 B 3.5 23 08/96 Amendment 0 o$ i.o m a . o. m .
l
AP600 B 3.5.5 INSERT PAGE B 3.5 26 D1 WIh the ot met for reasons other than Condition A, B, or C '
the PRHR HX mu restored within - The 8 hour9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months Completion Time is acce e on the availability of passive j fe [to effect CS heat removal.
i With the LCO not met for reasons other than Condition A. B, or C, the PRilR HX must be restored within 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months . The 8 hour9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months Completion Time js based on the availability of passive feed and bleed cooling to provide RCS heat removal. The effectiveness of feed and bleed cooling is discussed in the M .41 .
e s.
% & a s.s.s Ac%n 6.i.
9
/
V
IRWST Operating B 3.5.6 BASES ACTIONS M (continued)
With one motor operated containment sump isolation valve not fully closed, the valve must be closed within 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months .
This valve is required to be closed to ensure that spurious actuation of the series isolation valve due to a single failure does not initiate premature discharge of the IRWST into the containment during a small break LOCA. The 72 hour8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months Completion Time is acceptable considering that the accident mitigation function of the system is not degraded by this condition.
M If the IRWST water volume, boron concentration, or temperature are not within limits, the core cooling capability from injection or PRHR HX heat transfer and the I reactivity benefit of injection assumed in safety analyses may not be available. Due to the large volume of the IRWST, online monitoring of volume and temperature, and frequent surveillances. the deviation of these parameters is expected e M@ minors The Jr hour Campletion Time is acceptable,
- TA AL JA A considering that th IRWST will be fully capable of-performing its ass ed safety function in response to DBAs qg AM with slight devia 'ons in these parameters, g @ 4 We ) y $
D '
If the motor operated IRWST isolation valves are not fully
,, M 0'._ i open, injection flow from the IRWST may be less than assumed
~0 V
, in the safety analysis, in this situation, the valves must L. 9- '
be restored to fully opcn in 8' hourA- This Completion Time
, g M J . is acceptable based on risk nsiderations, t_ M .5 /
G m_'~
~
l_ h'. If the IRWST cannedbereturnedtoOPERABLEst s within the associated Completion Times or the LCO is et met for D . 0~ Ub reasonsotherthanIonditionsA,B, C Cord, e plant must
" , A q 3),be brought to MODE f where the probability a d consequences of a DBA are minimized. To achieve this sti us, the plant
- must be brought to at least MODE 3 within A hours and to
.? MODDy within 3( hours. The allcwed Completion Times are reasonable, sed on operating experience, to reach the ,
required p1 t conditions from full powet ccnditions in an orderly ma ner and without challenging plant systems.
3b (continued) h AP600 B 3.5 31 08/96 Amendment 0 eu a.,ea m oe,osa m ee
IRWS1 Operating
, 8 3.5.6 BASES (continued)
SURVEILLANCE SR 3.5.6.1 REQUIREMENTS The IRWST borated water temperature must be verified every 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months to ensure that the temperature is within the lir.it assumed in the accident analysis. This Frequency is sufficient to identify a temperature change that woula approach the limit and has been shown to be acceptable tirough operating experience.
SR 3.5,6.2
@iW $ M Verification every M ;,voi. that the: IRWST borated water volume is above the required minimum level will ensure that a sufficient initial supply is available for safety injection and floodup volume for recirculation and as the heat sink for PRHR. During shutdown with the refueling cavity flooded with water from the IRWST, this Surveillance requires that the combined volume of borated water in the IRWST and refueling cavity meet the specified limit. Since the IRWST volume is normally stable, and is monitored by redundant main control indication and alarm, a 3 hm PWSP/
Frequency is appropriate. zth SR 3.5.6_._3 -
Verification every 31 days that the boron concentration of the IRWST is greater than the required limit, ensures that the reactor will remain subtritical following a LOCA. Since the IRWST volume is large and normally stable, the 31 day Frequency is acceptable, considering additional verifications are required within 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months after each so tio i olume Encrease of 15,000 gal., 3%.
A th SR 3.5. .' e--
'arossit '
SL 1. e f I%vFI N f74 L=0 4h % m This surveillance requ res verif cati that each motor operated outlet isolation valve is f ly open. This surveillance may be performed with ailable remote position
~_
indication instrumentation. The hour Frequency is acceptable, considering the redundant remote indication and alarms and that power is removed form the valve operator.
SR3.5.6d Verification is required to confirm that power is removed from each motor operated IRWST outlet isolation valve each 31 days. Removal of power from these valves reduces the likelihood that the valves will be inadvertently closed.
The 31 day Frequency is acceptable considering frequent surveillance of valve position and that the valve has a confirmatory open signal.
(continued) h AP600 B 3.5-32 08/96 Amendment 0 V
IRWST Operating
B 3.5.6 BASES f,0RVEILLANCE SR 3.5.6.6 GEQUIREMENTS (continued) Verification is required to confirm that each motor operated containment recirculation isolation valve is closed every 3,; DY6 14 hvors. This Surveillance may be performed with available remote position indicati e instrumentation. The Je 5: r 3 # D4y Frequency is acceptable considering an open valve does not affect the ability of the flow path to provide recirculation flow, if required.
SR 3.5.6,7 Each motor operated containment recirculation isolation valve must be verified to be OPERABLE by stroking the valve open. The Surveillance Frequency references the Inservice Testing Program.
SR3.5,6.gf/O k This SR requires performance a system inspection and 4 perfomance test of the IRWS injection and recirculation flow paths to verify system capabilities. tr ' si f' ^ ^ :t:.
The system inspection and performance test demonstrates that j
the IRWST injection and recirculation capabilities assumed ggper- in accident analyses is maintained. Although the likelihood that system performance would degrade with time is low, it g 3'3.5.
g's'*g is considered rirudent to neriodically verify system 5.&
f performance, 2 7 ---
~ 1. T ,
- - _ _ . # 9 'b x 'z" t :" ' --- i f---
[ h_k < \ / L REFERENCES 1. AP600 SSAR Section 6.3, " Passive Core Cooling."
~~2. AP600 SSAR Section 15.6, " Decrease in Reactor Coolant Inventory."~~
s !. 3, Af600 fRA T.L~ D /4 4 - A LJLLM3 ,wtAP-i+50r,*
EJ d----
g fa S L 0 , 7 glg A u. ~y &J g-AP600 B 3.5-33 08/96 Amendment 0
~ . -
V
IRWST . Shutdown, RCS Inventory High B 3.5.7 BASES ACTIONS L.l (continued)
If the IRWST water volume, boron concentration, or temperature are not within limits, the core cooling capability from injection oi PRHR heat transfer and the reactivity benefit of injection assumed in safety analyses may not be available. Due to the large volume of the IRWST, online monitoring of volume and temperature, and frequent surveillances, the deviation of these parameters is expected ta ha minor.s The ?f hour Completion Time is acceptable, 1 gL ' ~ng considering that the IRWST will be fully capable of
. performing its ass d safety function in response to DBAs A M A = D with slight devia ons in these parameters.
GMb 'k 8 b 6 I'U> l'f the motor operated IRWST isolation valves are not fully open, injection flow from the IRWST may be less than assumed in the safety analysis, in this situation, the valves must be restored to fully open in K houry. This Completion Time is acceptable based on risk c siderations.
E.1 and E.2 /-
If the IRWST cannot be returned to OPERABLE status within the associated Completion Times or the LCO is not met for reasons other than Conditions A, B, C, or D, the plant must be placed in a condition in which the probability and consequences of an ovent are minimized to the extent possible. This is done by imediately initiating action to place the plant in MODE 5 with the RCS open and a visible level in the pressurizer. The time to RCS boiling is maximized by maintaining RCS inventory at or above a visible ievel in the pressurizer and maintaining RCS temperature as low as practical. Additionally, action to suspend positive reactivity additions is required to ensure that the shutdown margin is maintained. Sources of positive reactivity addition include boron dilution, withdrawal of reactivity control assemblies, and excessive cooling of the RCS.
(continued)
AP600 B 3.5 36 08/96 Amendment 0
/ '
i IRWST Shutdown, RCS inventory Low l B 3.5.8 ,
l BASES l
ACTIONS (continued)
,QJ Aa0W M4WW If the IRWSThater volume, boron concentration, or
~~temperature are not within limits, the core cooling ,~~
capability from injection or PRHR HX heat transfer and the reactivity benefit of injection assumed in safety analyses may not be available. Due to the large volume of the IRWST, online monitoring of volume and temperature, and frequent surveillances, the deviation of these parameters is expected to be minora The if hour Completion Time is acceptable considering that the IRWST will be fully capable of performing its assu ed safety function in response to Design ggA Basis Accidents (D s) with slight deviations in these parameters.
AAL DJ e
w t,vr.(.4
k. D McpoCt). If the open,motor operated injection IRWST flow from the IRWST isolation mayvalves be lessare thannot fully assumed in the safety analysis. In this situation, the valves must be restored to fully open in # hour)(. This Completion Time is acceptable based on risk c siderations.
e E.1 and E.2 /
If the IRWST cannot be returnad to OPERABLE status within the associated Completion Times or the LCO is not met for reasons other than Conditions A, B, C, or D, the plant must be placed in a Condition in which the probability and consequences of an event are minimized to the extent possible, in MODE 5 with the RCS intact and a level not visible in the pressurizer, action must be immediately initiated to be in MODE 5 with the RCS open and a visible level in the pressurizer. In MODE 6 with the upper internals in place and the cavity level less than full, action must be immediately initiated to be in MODE 6 with i
the upper internals removed and the cavity full.
The time to RCS boiling is maximized by maximizing the RCS inventory and maintaining RCS temperature as 1(,w as practical. Additionally, action to suspend positive reactivity additions is required to ensure that the shutdcwn margin is maintained. Sources of positive reactivity addition include boron dilution, withdrawal of reactivity control assemblies, and excessive cooling of the RCS.
l (continued) 4 h AP600 B 3.5 40 08/96 Amendment 0 m nmom meeme j
C PCS Operating B 3.6.6 BASES SURVEILLANCE SR 3.6.6.3 (continued)
REQUIREMENTS secured in position since these were verified to be in the correct positions prior to being secured. The 24 h w 38 DU Frequency is based on the availability of control room
' instrumentation to verify valve position.
SR 3.6.6.4 This SR requires verification that each automatic isolation valve actuates to its correct position upon receipt of an actual or simulated actuation signal. This Surveillance is not required for valves that are locked, sealed, or otherwise secured in the required position under administrative controls. The Frequency is in accordance with the Inservice Testing Program.
SR 3.6.6.5 This SR requires verification that the air flow path from the shield building annulus inlet to the exit is unobstructed and that the inspection ports in the air baffle are closed ensuring that the heat removal capability is
maintained. Although there are no anticipated mechanisms which would cause air flow path obstruction and the effect of an open inspection port is very small, it is considered prudent to verify this capability every 24 months.
~~SR 3.6.6.6 b d A "f This SR requires performance of a Pas ive Containment Cooling System test to verify system capabilities.sech=e4 Ogh t'~~
n

' ty := ;t; . The system performance test demonstrates that the containment cooling capability assumed
((N, in accident analyses is maintained. Although the likelihood
'Md Ypr pM'W
- that system performance would degrade with time is low, it is considered prudent to periodically verify system C;in; ith th: O. T - ~ p D v ce. IGv;: ; ' _
e/ y 9 .* a= "==" '*
g TkSfLM ljVhQ TR f~y-- rA$
pa+
pp P
(continued) a
@ AP600 B 3.6-35 08/96 Amendment 0 e ' w = u m.. m . m
, Main Control Room Emergency Habitability Systen B 3.7.6 BASES SURVEILLANCE S.R. 3.7.6.6 REQUIREMENTS (continued) Verification that each VES pressure relief isolation valve within the MCR pressure boundary is OPERARLE is required in accordance with the Inservice Testing Program. The SR is used in combination with SR 3.7.6.7 to ensure that adequate vent area is available to mitigate MCR overpressurization.
SR 3.7.6.7 Verification that the VES pressure relief damper is OPERABLE is required at 24 month intervals. The SR is used ia combination with SR 3.7.6.6 to ensure that adequata vent area is available to mitigate MCR overpressurization.
SR 3.7.6.8 .
Verification of the operability of the self contained pressure regulating valve in each VES train is required in accordance with the Inservice Testing Program. This is done to ensure that a sufficient supply of air is provided as required, and that uncontrolled air flow into the MCR will not occur.
k SR 3.7.6.9 3.g -
'n.
/
[ Perbidk.;
Keft ace J functional test is required to M; 9--er=<e that oneyES a{r dgige o e I
[ize thpM R'to a post i e*
ty-related com'p3esied air sog v
[u 1/8 Inch 25+If .
trgauge pressureMI5(ve to the s - , _ _ , t e required air addition flowyate hours.js'only : ,hd te != dong enough to demonstrate y6 ( M5---' ef abil test nee #Iot last 7(ind
[hleve the des erential pressuh"4 c' er' er !h--dd te St "'2
% tl hutle . gntrol room a rate must be hye design capacttfRthe
\
\ 7 e==%
safety-rel ems to ssurize e contro grefor 7 hourt. Qne air d 1dery 9 trasn is testedu kan alternati
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r- m W
REFERENCES 1. AP600 SSAR, Section 6.4, " Main Control Room Habitability Systems."
/
~~2. AP600 SSAR, Section 9.4.1, " Nuclear Island Non Radioactive Ventilation System."~~
~~3. Sf0Y CLT-i M ' dom cv ood T'6 ciel l%xs Associakd Djith ks b dabry Trfa%cnt of Ocn-Sakk/ Sjskrns~~
(. R.TNM) i n tu%Yf Ekid tesys (RCT %-OS'0 3
(%y Oh %5 .
( i h AP600 B 3.7-29 08/96 Amendment 0
. _ _ __ M *'_"_ ~ _1* * * * " *
~~4 1~~
e Main Control Room Emergency liabitability Sptem flaws SR 3.7.6.9 RAG E 3.7 J.9 "Ihis SR requires the performance of a system perfonwnee test of the VES to venfy MCR pressurizatio Dd65 capaNiities. The system performat.cc test demonstrates that the PICR pressurization assumed in - . analysis is maintained. Although the likelihood that system performance would degrade with time is low, it is considered prudent to periodically verify system perfonnance. The System Level Operat;ility Testing Program provides specific test requirements and acceptance criteria.
t
9-AP600 Technical Specifications 5.5 Programs and Manuals Page 5.014 INSERT 5.5.10 System Level Operability Testing Program ,
The System Level Operability Testing Program provides requirements for performance tests of passive systems. The System Level Operability Testa specified in SSAR Section 3.9.6 and Table 3.917 apply when specified by individual Surveillance Requirements,
~~a. The provisions of SR 3.0.2 are applicable to the test frequencies specified in SSAR Table 3.9.17 for performing system level operability testing activities; and~~
~~b. The provisions of SR 3.0.3 are applicable to system~~
~~- level operability testing activities.~~
~~_m_.m_._.._-.__ .-~~
o
.d .
Revised SSAR Table 3. '.6-17 Tale 3.9-17 SYSTEM LEVEL OPERABILITY TEST REQUIREMENTS Test Purpose Test Method Tech.Spee.
Splem/ Feature INote al PCS PCCWST drain lines Flow capability and Note i SR 3I.6.6 water coverage PXS Accumulator injection lines Flow capability Note 2 SR 3.5.1.6 CMT injection lines Flow capability Note 3 SR 3.5.2.7 PRHR HX Heat transfer capability Note 4 SR 3.5.4.5 IRWST injection lines Flow capability Note 5 SR 3.5.6.9 Containment recirculation lines Flow capability Note 6 SR 3.5.6.9 VES AlCR isolation / makeup MCR pressuritation capability Note 7 SR 3.7.6.9 Aloha Notes:
~~a. Refer to the Technical Specification surveillance idemifica ;.. th.s column for the test frequency.~~
~~X!!1tS~~
1. The flow capsoility of each PCS water drain line is demonstrated by conducting a test where water is drained from the PCS water storage tank onto the containment shell by opening one isolation valve.
During this flow test the water coverage is also demonstrated. The test is terminated when the Dow measurement is obtained and the water coverage is observed. De minimum allowable flow rate is 442 ppm with the passive containment cooling water storage tank level 23.7510.25 feet above the lowest standpipe. Water coverage is demonstrated by a repon that concludes that the amount of the containment shell covered irrat least equal to that predicted by the wetting coverage methodology used in the safety emidysis.
2. De now capability of each accumulator is demonstrated by conducting a test dunng cold shutdown Flow from the conditions. "the initial conditions of the test includchressure@Suf0cient flow is accumulator to the RCS is ini tiated by opening the accumulator isolation valve.
prosided to fully open the check valves. De test is terminated when the now measurement is ontained.
The allowable calculated now resistance between each accumulator and the reactor vessel is a: 1.49 x 10 "
It/gpm and s 1.86 x 10 ' ft/gpm 2.
T. The Dow capability of each CMT is demonstrated by conducting a test during cold shutdown conditions.
De initial conditions of the test include the RCS loops drained to a level below the top of the RCS hot leg. Flow from the CMT to the RCS is initiated by opening one CMT isolation valve. He test is
a 4* ,
n tenninated when the flow measurernent is obtained. The allowable calculated 2 flow resistance between each CMT and the reactor sessel is t 3.07 x 10 ft/gpm: and s 3.84 x 10 ft/gpia ,
4 The heat transfer capability of the passive residual heat exchanger is demonstrated by conducting a test during cold shutdown conditions.De test is conducted with the RCPs in operation and the RCS at a reduced temperature. Flow through the heat exchanger is initiated by opening one outlet isolation vahe.
The test is terminated when the flow and temperature measurements are obtained. The allowable calculated heat transfer is t : 07 x 10 ' Blu/hr with an inlet temperature of 250 F and an IRWST teirperature of 120 F.
5. De flow cay bility of each IRWST injection line is demonstrated by conducting flow tests and inspections. A flow test is conducted to demonstrate the flow capability of the injection line from the IRWST through the IRWST injection check valves. Water flow from the IRWST through the IRWST injection check valve demonstrates the llow capability of this portion of the line. Sufficient flow is provided to fully open the check valves. The test is tettninated when the flow measurcenent is obtained.
~~The allowable calculated flow resistance from the IRWST to each injection line c'ieck is t 5.68 x 10~~
2 ft/gpm2 and s 1.14 x 10 It/gpm .
De flow capability of the portion of the line from the IRWST check valves to the DVI line is demonstrated by conducting an inspection of the inside of the line. The inspection shows that the lines are not obstructed. It is not necessary to operate the IRWST injection squib valves for this inspection.
~~6. The flow capability of each containment recirculation line is &monstrated by conducting an inspection.~~
The line from the containment to the containment recirculation squib valve is inspected from the containment side. The line from the squib valve to the IRWST injection line is inspected from the IRWST side. De inspection shows that the lines are not obstructed, it is not necessary to operate the containment recirculation squib valves for this inspection.
7. The MCR pressurization capability is demonstrated by conducting a test. The test is conducted with the normal llVAC lines connected ti the MCR isolated using the dampers in VBS designated for this purpose in subsection 9.4.1. Pressuritation of the MCR is initiated by opening one of the emergency MCR habitability air supply lines. The air supply lines are attemated for subsequent tests. De test is a limited duration test and is tenninated when the MCR pressuritation is measured. The minimum allowable MCR pressurization is 1/8 inch gauge pressure relative to the sunounding areas, with 2510.25 scfm air flow supplied by the emergency MCR habitability air supply line.
~~_ _ ___,__ _ ___~~

ML20198G595

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