ML20097C279

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Proposed Tech Spec 3/4.6.3, Containment Isolation Valves
ML20097C279
Person / Time
Site: Callaway Ameren icon.png
Issue date: 02/02/1996
From:
UNION ELECTRIC CO.
To:
Shared Package
ML20097C278 List:
References
NUDOCS 9602080175
Download: ML20097C279 (5)
v • d • e


Text

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CONTAINMENT SYSTEMS ,

3/4.6.3 CONTAINMENT ISOLATION val.VES l LIMITING CONDITION FOR OPERATION W h.

3.6.3 -TheAcontainment isolation valve)(;;;;ifhd in T;bh 2.0-1 shall be OPERABLE. itt, t eebt.ie.. ;;..,. ee 4,e a i.. T.th :.0 1. %

' APPLICABILITY: NODES 1, 2, 3, and 4.

ACTION:

With one or more of the containment isolation valve (s) ;;;;ifh d h Tet h 2.0-1 inoperable, maintain at least one isolation valve OPERABLE in each affected penetration that is open and:

a. Restore the inoperable valve (s) to OPERABLE status within 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br />, -

or

b. Isolate each affected penetration within 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> by use of at least N one deactivated automatic valve secured in the isolation position, l
c. Isolate each affected penetration within 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> by use of at least one closed manual valve or blind flange or cAccK.j va/re wi+4 f/otd

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d. Be in at least HOT STANDBY within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and in COLD '

T SHUTDOWN within the following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />. **

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SURVEILLANCE REQUIREMENTS 4.6.3.1 ontainment isolation valves ;p;;ifhd h T;t h 2.0-1 shall be demonstrated OPERABLE prior to returning the valve to service after maintenance, repair or replacement work is performed on the valve or its associated actuator, control or power circuit by performance of a cycling test, and verification of isolation time. "

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l ATTACHMENT 3 Insert to TS 3/4.6.3 (** footnote)

    • i For penetrations with parallel containment isolation valves, the penetration is considered isolated if the flowpath with the inoperable valve has been isolated. The penetration may still have flow through it utilizing a parallel flowpath.

For the motor operated valves associated with reactor coolant pump cooling, automatic isolation valves (EGHV58, 59, 60, 61, 62) and remote manual isolation bypass valves (EGHV127, 130, 131, 132, 133), 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> are allowed to conduct _ actuator diagnostic evaluations which are required for post maintenance testing to restore a motor operated valve to an OPURABLE condition, during which time, the valve may be energized for short periods of time for the purpose of cycling.

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CALLAWAY M. ANT - FAULT TREE r0  !

N00EL OF PENETRATION P-76 IU  !

ANALYST: K6C l CMATION DATE: 10-27-95 REVISION : 11-01-95 CAILURE OF PEN P-76 70150. WHEN WORK-ING ECHV61 OR 62 I GTrito I

WORKING ON VALVE NORKING ON VALVE l' ECHV61 EGHV62 E

GTF120 GT8P200 PAGr. 2 I

BAEAK IN PIPE BREAK IN P]PE SEGNENT X (PSX) SEG8ENT Y (PSV),  !

3 GIF 130 GTSP134 i r3 r \

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I I I I DFEAK IN PIPE VALVES E0HV61 CR BREAK IN PIPE EGHV62 AND $

SEGMENT X. EGHV133 FAIL TO SEGNENT Y. EGHV61 GR 133 CLOSE. FAIL TO CLOSE.

d 8 REAM-PSX GTOP141 8REAK-PSY GT8P145 t .72-006 A "g 5 I' l l I I EQHV133 FAILS TO EGHV61 IS OPEN AND VALVES EGHV61 OR MOTOR OP, VALVE CLOSE. FAILS TO CLOSE. EGHV133 FAIL TO EGHV62 CLOSE. FAILS 70 CLCM-NOF0 5 Gip sso GTOP 52 GTOP141 EG-Mov-00-EGHY62 1.4 4 -003 THIS PAGE i I I EGHV61 IS OPEN E0 FAILS TO CLOSE EGHV61 FAILS T0 mi!LE IN T.S. ACT EGHY61 DN CONNAM) CLOSE WHILE IN I.S.

FRON CONTROL RN. A01.

6 gasyss.0 PEN EO-x4-r0-E0HY61 EG-MOV-00-61A0f 1.00E+000 1.00E-002 S 00E-001 CPERATORS FAIL 70 N0 TOR OP. VALVE ClosE EGHVl33. EGHY133 FAILS TO CLOSE-NOF0 I

, OP-X440-HV133 EG-MOV-00-HV133 i . 00E -002 1.44E-003 B

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, , O. I 1 1 2 1 3 1 4 1 5 l womE ON VALVE CALLAWAY PLANT - FAULT TREE N00EL OF PENETRATION P-76 TBP 2 GT8P200 EVISION : 11-01-95 ANALYST: K6C l CREATION DAT': 10-27-95 l rF a 10 /T 1 23

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g l BREAK IN PIPE BREAK IN PIPE SE0 MENT R lPSX) SE0 MENT Y (PSY)

I GT8P210 GT8P213 r ,

l l l l BT(AK IN PIPE MOTOR OP VALVE BREAK IN PIPE VALVES EGHV62 OR BEGMEN! X. EGHV61 SEGMENT Y. 132. AND E0HV61 i I

FAILS TO CLOSE-NOF0 FAIL TO CLOSE.

2 SAEAK-PSX EG-MOV-00-EGHV61 BREAK-PSY GTOP224

1. 75E-006 $ . 44E-003 ~t .70E-006

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l i MOTOR OP, VALVE VALVES EGHV62 OR 1 ECHV61 EGHV132 Fall T0 FAILS TO CLOSE-NOF0 CLOSE 3 EG-m0v-00-EsHv6 Gr8P234 1,44E-003 l I ,

k EGHV132 FAILS 10 E6HV62 IS OPEN AND CLOSE. FAILS TO CLOSE.  !

d GT8P243 GiBP245 (

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l OPERATORS FAIL TO MOTOR OP. VALVE CLOSE E6HV132, EGHV132 FAILS TO CLOSE4s0F0 l 5 OP-xm -r0-Hv132 EG-MOV-00-HV132

$.00E402 1. 4dE-003 6

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l I E0HV62 IS OPEN EO FAILS k0 CLOSE E0HV62 F AILS TO WHILE IN 1.9. ADT EGHV62 04 COMMAND CLOSE WHILE IN T.S.

FROM CONTROL RW. A07 '

EGHV62-OPEN EO-XPE-FO-EGHV62 EG-MOV-00-62A0T s 00Ew- 1,00E *2 s.00E-00s 8

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  ,                                                                                    Page 1 NUPRA 2.2x      FILE : TBPENET.FTP                                       UE Minium Cut Set Solution for fault tree TBPENET , Serial no.=              9 Performed :       13:07       1 NOV 1995 Cut Set Equation produced is : TBPENET. EON CALLAWAY PLANT - FAULT TREE MODEL OF PENETRATION P 76 Top event GTBP110 Top event unavailability (r.ev appr)=          3.14E-08 Cutoff value used                         =     1.00E 20 Nurber of Booler i Indicated cut Sets =               10 Number of MCS In equation flle            =           10                                               j MINIMAL CUT SETS SORTED BY UNAVAILABILITY
1. 1.75E 08 OP+XHE FO HV133 BREAK PSX I
2. 8.75E 09 BREAK PSX EGNV61 OPEN EO-XHE-FO-EGHV61 EG-MOV-00-61A0T
3. 2.52E 09 BREAK PSX EG MOV 00-EGHV61
4. 2.52E-09 EG MOV-00-HV133 BREAK PSX l S. 2.52E 11 OP XHE FO HV132 EG-MOV 00 EGNV61 BREAK PSY j
6. 2.52E 11 OP XHE-F0-HV133 EG-MOV 00-EGHv62 BREAK-PSY
7. 1.26E 11 BREAK-PSY EG MOV-00-EGHV62 EGHV61-OPEN EO-XHE FO-EGHV61 EG MOV-00-61A0T  ;
8. 1.26E-11 BREAK PSY EG-MOV 00-EGHV61 EGHV62-OPEN '

EO-XHE FO-EGNV62 EG-MOV-00-62A0T

9. 3.63E 12 EG MOV 00-Hv132 EG-MOV 00-ECHV61 BREAK-PSY ,
10. 3.63E 12 EG MOV 00-HV133 EG-MOV-00-EGHV62 BREAK PSY l l

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