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| number = ML20064J481
| number = ML20064J481
| issue date = 08/31/1989
| issue date = 08/31/1989
| title = Rev 1,Vol 3 to, Database for Probabilistic Risk Assessment of Light Water Nuclear Power Plants.
| title = Rev 1,Vol 3 to, Database for Probabilistic Risk Assessment of Light Water Nuclear Power Plants
| author name =  
| author name =  
| author affiliation = PLG, INC. (FORMERLY PICKARD, LOWE & GARRICK, INC.)
| author affiliation = PLG, INC. (FORMERLY PICKARD, LOWE & GARRICK, INC.)

Latest revision as of 13:49, 6 January 2021

Rev 1,Vol 3 to, Database for Probabilistic Risk Assessment of Light Water Nuclear Power Plants
ML20064J481
Person / Time
Site: Seabrook NextEra Energy icon.png
Issue date: 08/31/1989
From:
PLG, INC. (FORMERLY PICKARD, LOWE & GARRICK, INC.)
To:
Shared Package
ML20064J438 List:
References
PLG-0500, PLG-0500-V03-R01, PLG-500, PLG-500-V3-R1, NUDOCS 9403210245
Download: ML20064J481 (40)


Text

{{#Wiki_filter:.. - - 1 PLG-0500 - l Volume 3 Revision 1 l i I DATABASE FOR , PROBABILISTIC RISK ASSESSMENT OF LIGHT WATER NUCLEAR POWER PLANTS

                                                                                                                  'l Maintenance Data I

l l Cop 3right c 19M9 hs Pi(Lard. leur and Garrick. Inc.' August 1989 9403210245 940311 PDR ADOCK 05000443 PDR q

       .b,k_ar i m     E_NsJ-         l'1cKard. "wwe and barricE. 'nc.                                               -
            $$ q$a*5 . oc      ENGINEERS e APPLIED SCIENTISTS e MANAGEMENT CONSULT A',~ s

GENERIC D ATA FOR MAINTEN ANCE DURATIONS S ee* * : a ZM;LSD Maintenance Duration: Pumps - 163 "our Techrical Specifications Discrete Probability Distribution: L

   ,                                                                                                                 I
                                                                                  * "
  • l Bln Mai tenance Probability  ;

l Duration

     #                                    1.7687 E - 00    1.6045E-02          1.6045E-02                              ;

1 3.6537E-02 5.2582E-02 2 2.6458E - CO 4.8339E-02 1.0092E-01 l _ 3 4.1833E - 00 { 9.0037E-02 1.9096E-01 4 6.1237E + 00 l 8.9113E-02 2.8007E-01 5 8.6603E + 00 l 8.1864E-02 3.6190E-01 6 1.1180E + 01 7 1.3693E + 01 7.2748E-02 4.3488E-01 f l 1.1898E-01 5.5368E-01 l 8 1.7321 E - 01 i 8.9615E-02 8.4328E-01 9 2.2361 E - 01 2.7386E + 01 6.7749E-02 7.1102E-01 to 9.1991E-02 8.0302E-01 11 3.4641 E + 01 9.3575E-02 ~ 8.9659E 01 12 4.8990E + 01 5.5133E-02 9.5172E-01 , 13 7.3485E + 01 2.6318E-02 9.7804E-01 14 1.0817E + O2 1.0279E-02 9.8832E-01 15 1.4866E

  • 02 7.3410E-03 9.9566E-01 16 2.0616E + O2 i 1.7124E-03 9.9737E-01 17 2.738BE + O2 9.3734E-04 9.9831 E-01 18 3.2404E + 02 5.5134E-04 9.9886E-01 19 3.7417E
  • 02 4.5910E + 02 1.1379E-03 1.0000E + 00 l 20 Sth 50th 95th can Variance Percentile Percentile Percentile 1.5684E + 01 7.2719E + 01 2.8694E + 01 1.3667E + 03 2.5838E + 00 Type: DPD

Reference:

PGE.1123 > O ATA.PH ASE3 > M AINT.REV1 (Diablo) mc 4 37 Pickard. Lo*e and Garr>ca NPLG t N01 D a 082589

1 1 1 GENERIC OATA FOR M AINTENANCE DURATIONS Z ',1;L S D Sheet; :f4

                                                                                                 ;        l t

I i i i I lt  ! i k I i i MD.N: 2.3?D01 5th: 2.58D00 50th: 1.57D01 95th: 7,27D01

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                          .                      duration ( 0:1,0E9) i 4

i 1 4 38 Pickard, Lowe and Carrica *c NFLG1 N001 a 082589 f i

GENERIC DATA FOR M AINTENANCE DURATIONS 59ee 3'4 Z*PL S D

Description:

'Ns d'str1bution was deseiopod us ng the following wa.                                                                    ,

No. of Duration I Std. Range I i Tech. "' " plant Component S ecs. Events Dev. f Factor ( ho'ur s) f , 163 7 8 12 71 9 32 12 .'.0 , 1 50 t i  ; on i Cs :Wrs 3 i i 4 l 11 34 i 19 5 4 34 14 50 11 34 13A2 tU AB 3 pray 8 ump A or B 163 CCCN $ t4 5 l 18.26 6 57 17 96 1 34 CS Pumps 16B 4 24 2 on 24 i 8 ) 17 { 34 65 29 35 33 04 1 40 Centrifugal Charg 168 17 44 Zion 8 Pumps I 48 l 98 8 8 I 8 i i ! 18 B 8 72 8 78 :l 61 l 15 l 0* l 11 1 00 2 15 t is 168 2 1 25 2 25 T MI.2 rue 4 Cil Transfer 3 25 163 1 24 24 00 0.00 24 00 l 2 00' Zicn 51 Pumps 72 77 33 16 61 77 04 l 1'S RHR Pumps 168 6 Zion 79 96 1 72 48 97 l l l l Pickard, Lo*e and Oa"'" NPLC1 N0131 a 082589 a.39

, \ GENERIC DATA FOR M AINTEN ANCE CUR ATIONS 3_  ; s  ;

   - c 33     _

Tech No of . ' Duration ' ' Std. 4ange Component I i i l Mean l Median .. Plant i l Specs Events (hours) i Dev, l ac:ce f] *1 jgg * ' , *" ? $

                                                 '                    !     21                       !

i I. i i l

                                                           !          !     24                       ^

t l , l 3 [ i 3 i I 3 I . 24 I 3 i 3 i l , i

    !                   !                                                       3                                  I 8                                  1 3                                 !

3 l 19  ; 96 3 5 l i i i 30 i 8 l g l U i 11 i l 4 40 picw ard Lowe ano Or-NPLGIN013t a 0825B9

(. , 1 Attachment C - PCC System Results This section contains the details of the PCC system quantification for maintenance, Results are presented for the Baseline case, the New TS case, and the Sensitivity case #1, in the following tables: Table C.1 Maintenance Alignment Definitions - BASE These tables present the equation for CASE the molntenance olignment in terms of Table C.2 Maintenance Alignment Definitions - dato vorlobles. They also show the NEW TS CASE impact of the molntenance alignment, Table C.3 Maintenance Alignment Definitions - i.e. what basic event is assumed failed SENSITIVITY CASE #1 as a result of the maintenance. Table C.4 Maintenance Alignment Contributions to These tables present the maintenance - System Unavailability - BASE CASE contribution to system unavailability for Table C.5 Maintenance Alignment Contributions to the 3 boundary conditions discussed in System Unavoitability - NEW TS CASE the evoluotion. This shows the Table C.6 Maintenance Alignment Contributions to conditional failure, the frequency of System Unovoitability . SENSITIVITY #1 being in the alignment, the total unavailability contribution, and the importance of that alignment. Table C.7 Cause Table for PCC1 (Normal Alignment)- These tables present the dominant cut . l BASE CASE sets for PCC1, normal configuration. Table C.8 Cause Table for PCC) (Normal Alignment)- The cut set basic events are defined in NEW TS CASE Attachment A. Note that the cutsets in Table C.9 Cause Table for PCC1 (Normal Alignment) - [ brockets] are common cause terms. SENSITIVITY CASE #1

              +

l I l mc_n occ nem  ; I 1 l J

l{

                        %E   o                              MODEL Name    PCC_8ASE)

Allgrunent Report fc r sop twent PCC 14:25:40 09 FEB 1994 Page 1 MAINTA Allgrunent MAINTENANCE ON PCC PUMP P 11C Fraction of Time in the Allg snent ist 2*ZMPOPf*ZMPLSD e 9.0620E 03 Basic Event Inpacts for MAINTA Allgrynent Basic Event state Description OE.CCP11C.LT F PUMP DISCHARGE VALVE CC-V2 NOT RE OPENED AFTER PUMP ROTATION MAINTS Allgrynent MAINTENANCE ON PCC PUMP P 110 Fraction of Time in the Allgrinent ist 2*ZMPOPF*ZMPLSD = 9.0620E-03 Basic Event Irpacts for MAINTS AlIgrynent Basic Event State Description OE.CCP110.LT F PUMP DISCHARGE VALVE CC-V299 NOT RE.0PENED AFTER PUMP ROTAfl0N NORMAL Alignment WURMAL ALIGNMENT Fraction of Time In the Allgrenent is: 1 MAINTA MAINT8 = 9.8190E-01

MODEL Wame: PCC_CHNG} \ k

  • Aligreent Report f si ivv tvent PCC 09:05:05 10 FE8 1994 Pa00 1 MAINTA Alignment - MAINTENANCE ON PCC PUMP P 11C Fraction of Time in the Alf orynent ist 2*ZMPOPF'ZMPCCD = 3.0760E-02 sesic Event Inpacts for MAINTA Allgnment Basic Event State Description OE.CCP11C.LT F PUMP DISCHARGE VALVE CC V2 NOT RE OPENED AFTER Pt*P ROTATION MAINTS Allgenent - MAINTENANCE ON PCC PLMP P 11D Fraction of Time in the Allgrvnent 1s:

2*ZMPOPF*ZMPCCD = 3.0760E-02 Basic Event Inpacts for MAINTS Aligrunent Basic Event State Description OE.CCP110.LT F PUMP DISCHARGE VALVE CC V?99 WOT RE.0PENED AFTER PUMP ROTATION PLMNTA Allgreent - PLANNED MAINTENANCE ON A TRAIN PUMP Fraction of Time in the Alignment is: 2 * (1 / 4) * (1 / 8760)

  • 336 = 1.9180E-02 Basic Event inpacts for PLMNTA Allgrynent Basic Event State Description OE.CCP11C.LT F PUMP DISCHARGE VALVE CC-V2 NOT RE-OPENED AFTER PtNP ROTATION PLMNIB Alignment PLANWFD MAINTENANCE ON TRAIN B Fraction of Time in the Alignment ist 2 * (1 / 4) * (1 / 8760)
  • 336 a 1.9180E 02 Basic Event impacts for PLMNTS Aligrvnent Basic Event State Description OE.CCP110.LT F PUMP DISCHARGE VALVE CC V299 NOT RE.0PENED AFTER PLMP ROTAil0N NORMAL Alignment NORMAL ALIGNMENT Fraction of Time in the Aligrunent is:

1-MA!NTA MAINT8-PLMNTA PLMNT8 = 9.0010E-01

WAELWeme:hPCCSENS - l .!

  • Allgrenant Report f or iop Tven2 PCC ._

14:07:46 10 FEB 1994 Page 1 NORMAL Alignment - NORMAL ALIGNMENT ($O q%A5A M h (aV% 9 h] Fraction of Time in the Allgrwent ist k Constant Values 1 (%M dk5ab N

  • b d buhM% M.

i 1 l 1 I 1 I l l l l l l 1 l l

                                                 .                         ,    - - . .                       =..

1MLeCA MODEL Names 'PCC_8ASE di

  • Allgrvmmt Reoort for Split i rsuions in Too Evont PCC ,

14:29:09 09 FE8 1994 Page 1 Split Fraction PCC1

  • PCC STSTEM (BOTH TRAINS) - NO LOSP, TRANSIENT OR SMALL LOCA PE Mean = 7.2107E 07 Date : 08 FEB 1994 14:14 Allgrinent Total Prob. Frequency Total leportance NORMAL 7.1270E-07 9.8190E 01 6.9980E-07 9.7050E 01 MAINTA 1.1730E-06 9.0620E-03 1.0630E-08 1.4750E-02 MAINT8 1.1730E 06 9.0620E 03 1.0630E-08 1.4750E 02 Spilt Fraction PCC2 - PCC SYSTEM (BOTH TRAINS) - LOSP PE Mean = 2.7954E 06 Date 08 FEB 1994 14:14 Alignment Total Prob. Frequency Total leportance NORMAL 2.7800E 06 9.8190E-01 2.7290E 06 9.7620E 01 MAINTS 3.66902 06 9.0620E-03 3.3240E 08 1.1890E-02 MAINTA 3.6690E-06 9.0620E 03 3.3240E-08 1.1890E 02 Split Fraction PCC3 PCC SYSTEM (BOTH TRAINS) - MEDIUM OR LARGE LOCA PE Mean = 2.2106E 05 Date : 08 FE8 1994 14:14 Allgrinent Total Prob. Frequency Total Importance NORMAL 2.2090E 05 9.8190E 01 2.1690E-05 9.8150E-01 MAINT8 2.2550E 05 9.0620E 03 2.0440E-07 9.2470E 03 MAINTA 2.2550E 05 9.0620E 03 2.0440E 07 9.2470E-03 r

I l l 1

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

we c.s MODEL Name: PCC_CNNG [ g g l J Alf grenent Report for Split u suarw m Top Event PCC i j 09:05:36' 10 FEB 1994 i Page 1 l Split fraction PCC1 - PCC SYSTEM (BOTH TRAINS) - NO LOSP, TRANSIENT OR SMALL LOCA l PE Mean = 7.5870E-07 Date : 10 FEB 1994 08:16 Allgryneut Total Prob. Frequency Total Isportance NORMAL 7.1270E 07 9.0010E 01 6.4150E 07 8.4550E 01 MAINTA 1.1730E-06 3.0760E-02 3.6090E-08 4.7570E 02

  ,                  MAINTB                 1.1730E 06            3.0760E 02           3.6090E-08        4.7570E 02 PLMNTA                 1.1730E 06             1.9180E-02          2.2500E-08        2.9660E-02 PLMNis                 1.1730E-06             1.9180E*02 -2.2500E 08 2.9660E 02 Split Fraction PCC2 - PCC $YSTEM (BOTH TRAINS) LOSP PE Mean        = 2.8684E-06                  Date : 10 FEs 1994 08:16 Al f grenent       Total Prob.            Frequency              Total          Importance.

NosMAL 2.7800E-06 9.0010E-01 2.5020E-06 8.7230E 01 MAINTs 3.6690E-06 3.0760E 02 1.1290E 07 3.9340E 02 MAINTA 3.6690E 06 3.0760E 02 1.1290E 07 3.9340E-02 ' PLMNTs 3.6690E 06 1.9180E-02 7.0360E 08 2.4530E-02 ' PLMNTA 3.6690E 06 1.9180E-02 7.0360E 08 2.4530E 02 Sollt Fraction PCC3 PCC $YSTEM (s0TH TRAINS) - MEDIUM OR LARGE LOCA j PE Mean = 2.2134E-05 Date : 10 FEB 1994 08:16 Al(grunent Total Prob. Frequency Total l !sportance NORMAL 2.2090E 05 9.0010E 01 1.9890E 05 8.9820E 01 MAINTS 2.2550E 05 3.0760E 02 6.9380E 07 3.1340E-02 MAINTA 2.2550E 05 3.0760E 02 6.9380E 07 - 3.1340E 02 PLMNTA 2.2550E 05 1.9180E 02 4.3250E 07 1.9540E 02 PLMNTB 2.2550E 05 1.9180E 02 4.3250E-07 1.9540E 02 4 4 4 e N r 4

                                                                                                         -~ ~. -     ..    -

[ , ll1

  • _(p

{'h MODEL Cames PCC_SEDSFl~l

                                                            ' Allgruent Report for Split , , m ions in Top Event PCC 14:08:19 10 FEB 1994 Page 1 Split Fractlon PCC1 . PCC SYSTEM (SOTH TRAINS)
  • NO LOSP, TRANSIENT OR SMALL LOCA 6.I'5E-b+

PE Mean a ' t2; ^2 Date : 10 FEB 1994 10:30

                                                                                                                                  +

Allgreent Total Prob. Frequency Total luportance NORMAL w 1.0000E+00 ' " * "- 1.0000E+00 (o,l5 E4 (e:. tB E4 Uplit Fraction PCC2 . PCC SYSTEM (80TH TRAINS) - LOSP PE Mean

                              = {. 0
                                   " ^2,
                                       ^ E' ^-*5
  • Date : 10 FEB 1994 10:30 Al t ernent -Total Prob. Frequency Total Importance NORMAL ^~ ^1 1.0000E+00 1.0000E+00 2.= E-B 1.s1 1 bTe-3 Split Fraction Pr 3 . PCC STSTEM (80TH TRAINS)
  • MEDILM OR LARGE LOCA 2.75 E-5 +

PE Mean aN Date : 10 FEB 1994 10:30 Allgruent Total Prob. Frequency Total Importance WORMAL 3.20006-06 1.0000E+00 iMMM>ee-05 1.0000E+00 2.79 E-e 2.77G- S

                 +     \/g\ws e DAbed on HAM cM culdim. ht ThO C *i b nn O(Ampk d MS CA O %.

I l-s

EJDEL Names lPCC_ BASE l . Caus2 Table for Top Event PCC ano sptit Fraction PCC_1 PE Value of PCC1 a 7.21071 07 Date : 08 FE9 1994 14:14 14:30:12 09 FEB 1994 Page 1 No. . . Cut set s . . . . . . . . . . . Value. . . . . % leportance 1 Cumulative Alignment... 1 (AO.CCv426.F0,A0.C 4.563E-07 63.2806 63.2806 NORMAL cv427.F0, AO.CCV447

         .F0,AO.CCV448.FO]

2 [PP.CCP11C.FR PP.C 2.327E 07 32.2713 95.5519 NORMAL CP110.FR,PP.CCP118 FR,PP.CCP11A.FR) 3 [AO.CCV426.F0,AO.C 4.211E-09 .5840  % .1359 MAINTA Cv427. F0, AO.CCV447

         .F0,AO.CCV448.FO) 4       (A0.CCv426.F0,AO.C 4.211E 09                    .5840         96.7199   MAINTB cv427.F0,AO.CCV447
         .F0,A0.CCV448.F01 5       (PP.CCP110.FR,PP.C 4.188E 09                    .5808         97.3007   MAINTA CP118.FR,PP.CCP11A
         .FR]

6 [PP.CCP11C.FR,PP.C 4.188E-09 .5808 97.8815 MAINTB CP118.FR,PP.CCP11A

         .FR) 7      HX.CCE17A.GL
  • 2.153E-09 .2986 98.1801 NORMAL HX.CCE179.GL 8 [PP.CCP11C.FE,PP.C 2.148E 09 .2979 98.4780 MAINTB CP110.FR,PP.CCP118
         .FR,PP.CCP11A.FR]

9 IPP.CCP11C.FR,PP.C 2.148E 09 .2979 98.7759 MAINTA CP110.FR,PP.CCP11B

         .FR,PP.CCP11A.FR) 10     TI.CCTE2171.FZ
  • 1.108E 09 .1537 98.9295 NORMAL MX.CCE178.GL

MODEL Name: PCCCHWGl Causa Table for Top Event FCL; and sotit Fraction PCC1 . PE Value of PCC1 = 7.5870E 07 Date : 10 FEB 1994 08:16 09:06:17 10 FEB 1994 Page 1 No... Cutsets........... Value.....  % Inportance % Currulative Alignment... 1 (A0.CCV426.F0, A0.C 4.183E 07 55.1340 55.1340 NORMAL Cv427.70,A0.CCV447

     .F0,AO.CCV448.FO) 2     (PP.CCP11C.FR,PP.C 2.133E-07      28.1140         83.2480    NORMAL CP110.FR,PP.CCP118
     .FR,PP.CCP11A.FR) 3     (AJ.CCV426.F0,AO.C 1.429E 08       1.8835         85.1315   MAINTA CV427.F0,AO.CCV447
     .F0,AO.CCV448.Fo]

4 [AO.CCV426.F0,AO.C 1.429E 08 1.8835 87.0150 MAINTS CV427.F0,AO.CCV447

     .F0,40.CCV448.F01 5     (PP.CCP110.FR,PP.C 1.422E-08       1.8743         88.8892   MAINTA CP118 FR,PP.CCP11A
     .FR]

6 (PP.CCP11C.FR,PP.C 1.422E-08 1.8743 90.7635 MAINTB CP11B.FR,PP.CCP11A

     .FR) 7     (A0.CCV426.F0,AO.C 8.911E-09       1.1745         91.9380    PLMNTA Cv427.F0, A0.CCV447
     .F0,AO.CCV448.F01 8     (AO.CCV426.F0,AO.C 8.911E 09      1.1745          93.1125    PLMNTB CV427.F0,AO.CCV447
     .F0,AO.CCV448.F01 9     [PP.CCP110.FR,PP.C 8.863E 09       1.1682         94.2807    PLMNTA CP118.FR,PP.CCP11A
     .FR) 10    (PP.CCP11C.FR,PP.C 8.863E 09       1.1682         95.4489    PLMNTB CP118.FR,PP.CCP11A
     .FR]

I l l l I

                                             . - -       _ _ . . _ . _              ,    .            . . . _ . . _ _ _ _ .          . _ ._mm  - . _ . _ _ . . _ . _

TavLe CA >

                                                       ' M(X)EL Names           _PCC$ENSOl}                                                                {  !.

Cause Tebte for Top Event F'Ci; and Sollt Fraction PCC1 PE Value of PCC1 =( g.I'5

                                                               .?27%     C~k..        Date : 10 FEB 1994 10:30 14:08:56 10 FEB 1994 Page l' Wo... Cutsets........... Value.....' % !aportance % Cuautative Allersunt...
                                                                            *f 5 1      [AO.CCV426.70,AO.C 4.647E 07                            e r0004           69-2004    WORMAL CV427.F0,AO.CCY447
                   .F0,AO.CCV448 F01                                   ,

2 [^^.0'"?*'.T:,7 . 2.!'0; 07 M 9th4M6 NORMAL

                   ^^**0.TS,PP.CCP118
                   .FR,PP.CCP11A.FR]

03 3 MX.CCE17A.GL

  • 2.193E 09 .3677+ 96,7615- WORMAL MX CCE178.GL-4 MX.CCE17A.GL
  • 1.128E-09 .t985 94.0346 NORMAL TI.CCTE2271.FZ 5 TI.CCTE2171.FZ
  • 1.128E 09 . M63 9EA799 WORMAL MX.CCE178.GL
                                                                                                                    ~

6  ?}.gfy N .W WM woRMAL , Ce d g. 4g w Cn, , , p7. _ _ _ . . , . . .< ,1 A 4*

                   ;^^ 00"' ' . T;;

7 rna ren ne e=,P".C 7.!';. ^G- .ftI33 90st989 WORMAL O ".'",P".0'"!iA

                   -f9t "
                                                                                                                     ~
- . 00r " % . 777-8 CV.CCV1.GL
  • 6.022E 10 00e5 99:37tr. NORMAL MX CCE178.GL 9 CV.CCV298.GL
  • 6.022E-10 .86 6 99-*969 NORMAL MX.CCE17A.GL 10 TI.CCTE2171.FZ
  • 5.805E 10 .0445 996W4 NORMAL TI.CCTE2271.FZ i

s l M (pp, cc.9)l6.FR, PP. CC0 IIA FG3

  • hR
  • EdNhd LW-2
  • 4,0'ie-I,M
  • W 1
                                                                                                                                   = 5.97c-b t

i k l

                                                                                                                                                                             )

i I i 1

l l Attachment D -Initiating Event Results - Loss of One Train PCC l This section contains the dominant cutsets for the initiator loss of one train of PCC, for the  ! following cases: ' Table D.1 Cause Table for LIPCC - BASE CASE, Table D.2 Cause Table for LlPCC - NEW TS CASE, and Table D.3 Cause Table for LIPCC - SENSITIVIT/ CASE #1 The Base Case shows that the highest frequency cutset is common cause failure of the temperature transmitters that trip both PCC pumps. This cutset is not impacted by the maintenance changes. The next cutset is failure of the operating PCC pump while the standby pump is in maintenance (MAINTA). Cutsets 3 through 7 are failures of other components that are not impacted by changes to the maintenance model. Cutset 8 is failure of the operating PCC pump with failure of the standby pump to stort. The New TS Case increases the duration of maintenance for the standby pump (MAINTA), which impacts the first cutset. The third cutset is failure of the operating PCC pump while the standby pump is in planned maintenance (PLMNTA). The Sensitivity Case #1 is dominated by the operating pump failing to continue to run for on operating year. I J l ec_nnoc e2am j l

McCELNameshPCCBASEl Caope Table for Tao Evant LICc ann api t Fraction LICC1 PE Value of LICC1 - 2.4906E-03 Date 15 FEB 1994 08:01 14:23:15 03 MAR 1994 Page 1 No... Cutsets........... Value..... t Importance % Cumulative Alignment... 1 TI.CCTE2171.F3 6.128E-04 24.6042 24.6042 NORMAL 2 PP.CCP11A.FR 2.737E-04 10.9892 35.5934 MAINTA 3 AO.CCV341.F0 2.648E-04 10.6319 46.2253 NORMAL 4 VL.CCV3.CL 2.562E-04 10.2866 56.5119 NORMAL 5 av.CCTV21711.CL 2.562E-04 10.2866 66.7984 NORMAL 6 VL.SWV14.CL 2.562E-04 10.2866 77.0849 NORMAL 7 TX.CCTK19A.RT 1.626E-04 6.5285 83.6134 NORMAL 8 PP.CCP11A.FR

  • 9.666E-05 3.8809 87.4944 NORMAL PP.CCP11C.FS 9 CV.CCV1.0L 5.888E-05 2.3641 89.8584 NORMAL 10 MO.SWV15.CL 5.658E-05 2.2717 92.1301 NORMAL 11 PP.CCP11A.FR
  • 3.90$E-05 1.5679 93.6980 NORMAL BK.ccA5952.FC 12 PP.CCP11A.FR
  • 3.607E-05 1.4482 95.1462 NORMAL CE.CCP11C.LT 13 BV.CCTV21712.0P 2.562E-05 1.0287 96.1749 NORMAL 14 TI.CCTE2197.FM
  • 2.159E-05 .8668 97.0417 NORMAL TI.CCTE2171.FM 15 PP.CCP11A.FR
  • 1.699E-05 .6822 97.7239 NORMAL PP.CCP11C.IE 16 PP.CCP11A.FR
  • 1.620E-05 .6504 98.3743 NORMAL CV.CCV1.IE 17 PP.CCP11A.FR
  • 1.450E-05 .5822 98.9565 NORMAL RL,CCA5962.FE 10 PP.CCP11A.FR
  • 1.099E-05 .4413 99.3978 NORMAL CV.CCV4.F0 i

19 TI.CCTE2171.FZ 2.789E-06 .1120 99.5098 MAINTA 20 A0.CCV341.F0 1.2052-06 .0484 99.5581 MAINTA 21 VL.SWV14.CL 1.166E-06 .0468 99.6049 MAINTA 22 BV.CCTV21711.CL 1.166E-06 .0468 99.6518 MAINTA 23 VL.CCV7.CL 1.166E-06 .0468 99.G986 MAINTA 24 VL.CCV5.CL 1.166E-06 .0468 99.7454 MAINTA 25 VL.CCV3.CL 1.166E-06 .0468 99.7922 MAINTA l 1 i l

                                                                                            ~l i

MODELNameslfCC_CHNGN qauss Table for Top Event Lic. ano split Frterion L1CC1 PE Value of LICC1 = 3.7482E 03 Date : 14 FEB 1994 10:50 MG/W-Vetue-of-LitC1-= 0.0000E*00 Oste 15:14:58 14 FEB 1994 Page 1 No... Cutsets........... Value.....  % luportance % Cumulative Allgrvnent... 1 PP.CCP11A.FR 9.290E 04 24.7855 24.7855 MAINTA 2 TI.CCTE2171.F2 6.061E 04. 16.1706 40.9561 NORMAL 3 PP.CCP11A.FR 5.792E 04 15.4529 56.4090 PLMNTA 4 AO.CCV341.F0 2.619E 04 6.9874 63.3965 NORMAL 5 vt.CCV3.CL 2.534E 04 6.7607 70.1571 NORMAL 6 BV.CCTV21711.CL 2.534E-04 6.7607 76.9178 NORMAL 7 VL.SW14.CL 2.534E 04 6.7607 83.6784 NORMAL 8 TK.CCTK19A.RT 1.608E-04 4.2901 87.9685 NORMAL 9 PP.CCP11A.FR

  • 9.561E 05 2.5509 90.5194 NORMAL PP.CCP11C.FS 10 CV.CCV1.CL 5.824E 05 1.5538 92.0732 NORMAL 11 MO.SW15.CL 5.597E-05 1.4933 93.5665 NORMAL 12 PP.CCP11A.FR
  • 3.862E-05 1.0304 94.5968 NORMAL BK.CCA5952.FC 13 PP.CCP11A.FR
  • 3.568E 05 .9519 95.5488 NORMAL DE.CCP11C.LT 14 BV.CCTV21712.0P 2.534E 05 .6761 96.2248 NORMAL 15 TI.CCTE2197.FM
  • 2.136E 05 .5699  % .7947 WORMAL T!.CCTE2171.FM 16 PP.CCP11A.FR
  • 1.681E-05 4485 97.2432 NORMAL l PP.CCP11C.1E 17 PP.CCP11A.FR
  • 1.434E 05 .3826 97.6258 NORMAL RL.CCA5962.FE 18 PP.CCP11A.FR
  • 1.088E 05 .2903 97.9161 NORMAL CV.CCV1.IE 19 PP.CCP11A.FR
  • 1,087E 05 .2900 98.2061 NORMAL CV.CCV4.F0 20 TI.CCTE2171.FZ 9.468E 06 .2526 98.4587 MAINTA 21 TI.CCTE2171.FZ 5.903E 06 .1575 98.6162 PLMNTA 22 A0.CCV341.F0 4.091E 06 .1091 98.7253 MAINTA 23 YL.SW14.CL 3.958E 06 .1056 98.8309 MAINTA 24 BV.CCTV21711.CL 3.958E 06 .1056 98.9365 MAINTA 25 VL .CCV7.CL 3.958E 06 .1056 99.0421 MAlWTA l

I i _ _ _ _ . ______.___m ___ - _ _ . _ _ _ _ . _ . _ _ _ __ _ _ _ _ _ _ _ _ . _ _ _ _ . _ _ - _ _ _ _ _ _ _ . - _ - - _ _ _ _ _ _ _ . _ _ _ _ _ _ _ _ _ _ _ _ - . - _ _ _ . _ . ___ _m.-_-__.

fhfjl E h. b MODELNameshC_SE*S] ' Cruss Table for Top Event Lice ..u spaet Fraction LiCC1 PE Value of L1CC1 e 6.2960E 02 Date : 10 FEB 1994 10:50 14:09:35 10 FEB 1994 Page 1 No... Cutsets........... Value..... % Inportance % Ctmulative Alignment... 1 PP.CCP11A.FR 6.040E 02 95.9334 95.9334 NORMAL 2 TI.CCTE2171.F2 6.156E 04 9778 96.9112 NORMAL 3 AO.CCV341.F0 2.660E 04 4225 97.3337 NORMAL 4 VL .5W14.CL 2.574E 04 4088 97.7425 NORMAL 5 SV.CCTV21711.CL 2.574E 04 4088 98.1513 NORMAL 6 VL.CCV7.CL 2.574E 04 .4088 98.5602 NORMAL 7 VL.CCV5 CL 2.574E 04 .4088 98. % 90 NORMAL 8 VL.CCV3.CL 2.574E 04 .4088 99.3778 NORMAL 9 TK.CCfK19A.RT 1.633E 04 .2594 99.6372 NORMAL 10 CV.CCV4.CL 6.384E 05 .1014 99.7386 NORMAL 11 CV.CCV1.GL 5.915E 05 .0939 99.8326 NORMAL 12 MO. SW 15.CL 5.684E 05 .0903 99.9228 NORMAL 13 av.CCTV21712.0P 2.574E-05 .0409 99.9637 NORMAL 14 TI.CCTE2197.FM

  • 2.169E-05 .0345 99.9982 NORMAL TI.CCTE2171.FM 15 AO.CCV57.F0
  • 1.157E-06 .0018 100.0000 NORMAL A0.CCV121.F0
  • XX. TRAIN 8.XX

t Attachment E - Plant Model Results This section contains the ranked list of core domoge sequences for the four cases: Table E.1 CD Sequences - BASE CASE, Table E.2 CD Sequences - NEW TS CASE, Table E.3 CD Sequences - SENSITMTY CASE #1, and Table E.4 CL ' equences - SENSITMTY CASE #2 Each list contains the top 25 sequences, with the PCC impacted sequences highlighted. The relatiom s p : atween split fractions, used in the sequences, and syswi results, given in Attachment C, is explained in the following tables: Table E.5 Split Fraction Report - BASE CASE,  ; I Table E.6 Split Fraction Report - NEW TS CASE. i I l i i I i l PCCA DOC 019194

            % et.E E.1                                                                                                                                                                                                                F.

MODELCamie:lPCC_ BASE}' Totst Fre gency of Sequences in Group : MELT = 5.94E-05 per year 06:42:55 24 FEB 1994 , Ear

  • Initiating --"-~----- * "------- Fa i l ed or Mul t i-S t at e Sp' I t F ract i ons------------------ Frecpency Percent Percent End to. Event (Dependent Guaranteed
  • Faltures Excluded) (per year)
   .......................................................".....................................................................................................                          Cume                               State 1        L1CCS                         ( PAA)                                                                                                                 6.55E-06 11.03        11.03                                 MELT (2.5E-3)                      (2.6E-3)

LOSS OF TRAIN B PRIMARY COMPONENT COOLING

                  - PCC TRAIN A - GIVEN TRAIN B FAILED (L1CCB) 2        L1CCA                         ( PB2)                                                                                                                 6.55E-06 11.03       22.06                                  MELT (2.5E-3)                      (2.6E-3)

LOSS OF TRAIN A PRIMARY COMPONENT COOLING

                  - PCC TRAIN 5 - NO LOSP, TRANSIENT, OR SMALL LOCA - PA FAILED F 2LOEPV:MMCE(l&39){W8F)( E*9F)i' M "                                                                   '

sg M" ' (2.07E-06i3j481 a25.543 w iICT LQ NidM MINNbSdd $$M*3II).O$I2b A&sn6ad sh Law 4.w.b4;M e M&WM bb I Iw ;.

                        ~

WMDet'0F 0FFSITE'PeWR d x.

 @ ' _MESERVICE O .CSERVI M HATER ST3            unTER Tat h TRAIN SYSTEM  (             7@ TRAIN'A
  ,n p.nwnswF(pef         RgtuppfRY w -..      . -n 0. F 0$Fi.!TE.: P._OWER.a$;
                                                 ~~a FW 4          FCRCC                        ( ORS 2 )                                                                                                                  1.61E-06 2.71       28.25                                  MELT (1.7E-5)                     (1.0E-1 )

FIRE IN CONTROL ROOM - PCC LOSS

                  - OP - OPERATOR ACTION - RESTART PCC, SW FOR MC8 FIRE
                                                                                                       *'             "       " ~         *
  • eM9M%kw1&Witi2M&2nMEtzuw.f ]LDSP5E7!yTifCGA10)Ca8AT)CER15)7L ac w w uu ; m m^ ""ka. m a w[N""

s m a:n d; .1;53EiO6 7.2j611 J 30 8 6 m [MEQM WMD$$"0F'OFFtlTCPOWN b b.;

       ' W.iAC POWER (WOIESELENERATOR S' #AC:P(RER f!DIESEQBEIERATORTA m

aNOPM RE

w. am .m ...C_OWERY.x.O_F)_- - .

LS.O. TW D./. 05. 'A...IE.l_" OFFS..t. T. E,.i >0b.E. REf..FW

                                                     ..-s               -        .
                                                                              "' ~WWW M' "W " "* " "C"                                    * # ? ': - " $U31E-06s~E211.4'" 3 33,07;6                                      EMELT-Q#

6E E7tTTSDK(CoV77Wt*fRF"?W M Ei5ty s hed ? g $ $ )E-1 M u g a % g g g g m g g g.g ;3 m g g g g ggg w g

                                                                                                                                                                ~ ~ ~ ~ ~            "^"~                                  "   ""

77SE!$N1C? D.TTRAllSIEWTiEVENT

             > ;*'MAZWOFFSITE POWER ATfSETSMlClLEVEIM72
     . m. -u* 4,~8A.2~~Ms.4.'n
                             .16K
                               . V SWI- TCM~GEA..R
                                            . ~         n ! (R_ELA.T n--    C.
                                                                          -~ HATTER.1.hC.
                                                                                    + -         ).>'. ATE. 7G.

U ' ALOItFYPWM( RTIYkP(17)('AMW)7 N P" #

                                                                                                                                                         "c1.02E w
                                                                                                                                                                  ' ~ ' ~ ~06S1!71'i  %' 79
                                                                                                                                                                                      ~    ' ~);*1 LMLQ" M
                                                                                                                                                                           ~ ~                                             " ~      ^

i L 3 h3Ef N s? M M & 4) Q R E $ M1.0E 2E l N , e , , , . , m

         *ATWS~i' LOSS'OF' Malls FEEDWATER'(PLMN #TLMfW)
               - - STS REACTOR TRIP BOTH SSPS TRAINS AVAlli
  • ET - PLANT POWER ^ LEVEL > 40% -:ATVS~
                 - ET - ATWS MITIGAfl0N STSTEM (GENERIC ESTIMATE) e
                            - These ruters were hand calculated.

214 RT' JLLP1..L_ -""TGAIM )( 'CBAZ)( EA5l' ) : . l1.00E-06 11.68 ^ 3637 '~

                                                                                                                                                                                                                     ^~ MELTT~~

bja.R$);3g (fi(4dE .2MS.4E-2MT.1E 71.)j

                                                                                                                                                                                                     ~~ ~

E t-(FLOOD N Ttmtigf BullDINGWLOSP m AC POWER 9 DIESEL GENERATOR A

if' _ M AC POWER fUDIESEL GENERATOR.S .

! ( ,  ? y CPJ?l,.RE @ y;0{ 80TR D/GS,;yiNO OFfSITELPO ER N.EHi

                                ^ ^ JCEH1?)l ^'
                                                                                                                                            ~       ~

99 iSLOCA'T. f9.93E-073~1.67' 38.14 - MELT T

  $:26.(1.8E-2),.g m j d6.0EM t., g es m a
                                                                                                                                                                           ~ '       ~        ' '
                                                                                 ,,           ex            ,.a l

l h :l$NALL LOC 4 . .. I Esa j;iSTS i EA M AT 0R s L SIGNAt] g:? y(sy 3. .myy-w m^ m g m:' '

                                                                                                                                                                          '""     ' ~ " "j:MT {

9 30E-07 ( 39g j MELT - N d U. @ {6)]:g m g a f 3 3 g gg 3 9 .y g , :g a

                                                                                                          ,                                 " __ . w LijnirpMOLoo0!WeMossAMsEtyt.ct MTry 11          RT                           ( PA1 )( PS2 )                                                                                                                  9.14E-07 1.54                41.24            MELT (1.4E40)                     (1.0E 4)(7.0E-3)

REACTOR TRIP

                   - PCC TRAIN A - NO LOSP, TRANSIENT, OR SMALL LOC',
                    - PCC TRAIN 3 - NO LOSP, TRANSIENT, OR SMALL L'E4 - PA FAILED l

l l 12 FPCC3P ( PB10) 9.G6E-07 1.53 41.25 MELT

(2.0E-4) (4.5E-3 )

FIRE IN PAB LOSS OF TRAIN A PCC AND RUNNING TRAIN B PLFP

                   - PCC TRAIN B - GIVEN FIRE RESULTING IN LOSS OF NORMALLY RUNNING PUMP j3(1 Lisys2..'f" W
  • f( imA? )(:-W16 E ) i
                                                                                      ~                 ^                ~

27,88C-072"i1;33i

                                                                                                                                                                                                      ? 42.58i'        : MELT-':

E N3 t3EI.)I d a$$b' O M$*.0E-2jj< I , j , ._ , ,

                                                                                                                                                                                      '     ~
                                                                                                                                                                                                  ~     ' '
  • TLOSS Of! TRAIN B5ERVICNTER i i:: '~ ' N SERVICE WATERcSYSTEM $ TRAIN A i

kks &NNIIffM.IE$.AISIIbdM3 1 ! 14;:11.1SWA E . .

                                 ~
                                                                           ^                                                                                             "7.75E*0711,30 W MA65)("WB27 )H                                                              -
                                                                                                                                                                          ' " ' '                   [43.88 l         . MELT 1
         ;n.(3. 3E-3..
                - i    )..?. ~:w:w~ .3 (3.9Ea
                                        ~ > ~.2.).
                                                .. (.~6.4.E.~ 3..,). i. ..  .           x     ue it.Ost DC TRAIN A SGRVICE'tMTER
   ~

T-.SERVICG WATER SYSTEM i TRAlNlA

g M y RV1CE p JER;SYSTE L 6.] RAIN S l

l 15 PLMFW ( PA1 )( PB2 ) 7.65E-07 1.29 45.17 MELT (1.1E+0) (1.0E-4)(7.0E-3) l PARTIAL LOSS OF MAIN FEEDWATER

                  - PCC TRAIN A - NO LOSP, TRANSIENT, OR SMALL LOCA
                   - PCC TRAIN 8 - NO LOSP, TRANSIENT, OR SMALL LOCA - PA FAILED
                              - These nunbers were hand calculated.

3lt. . 16 TT ( PA1 )( PS2 ) 7.25E-07 1.22 46.39 MELT (1.1E*0) (1.0E-4)(7.0E-3) TURBINE TRIP

                  - PCC TRAIN A - k0 LOSP, TRANSIENT, OR SMALL LOCA
                    - PCC TRAIN B - NO LOSP, TRANSIENT, OR SMALL LOCA - PA FAILED g77 stacg f                       "" 1(15217)(:L65 ?) N t F ;) 7                                                                                                  J7.10Ejo7]tj20 *.

T 47.59) lMELTD ' [ 331rE. 215 M.45.2{E3)(h4Ej2KJ.0E-1f , . # :.

g' pcn
>~
          M RMR IWJECTIONL(WITH ict)MTRAIM A S < GER-INJECTIONL(WITN HI)MTRAIN 2 u./

T .u . :H

                  . OP.. '. ~.O, PERATOR.-.
                                      -           PRO.V~I.D. E.S.~MA..KEL.P
                                                                  - an.             10.
                                                                                     -  RWS.T.? FO..R.., LATE :RN.R FAILLRES
                                                                                                                                               ~

gg m tog g , c:xg gy gygg 3g:hP)t RfFWPS$3T ' T6.69E-07~N13 .. 48.71"'" "~" MELT~ -:. AndUr3 Ed)h2hjjyi4E;9%TE-1{(2.W2)%2EfQ s. , _ c;g3 ,

                                                                                                                                                                          ~~             ' '             '                        ^  ,

r" 7ATC Lots'0F: MAIN"fEEDWTERTCPLMPidV TutFW) s

        'd~ f K SYE *JREACTOR'TNIP 90TW BSPS!TRA!WS. AVAIL 7
m. , M ET SPLANT POWER LEVEL 9 40lLHATW5 ~'^~ "
&             :;i.ET V RGl':fNSERTIONWALITO OR MA3RJAL
, 4.gg -! RC5M@(RELIM' ' ~ ^ '                                               ~

$9J'fE77 Y ~ n ; V(cf7]?)( C07? )? " " ' ^

                                                                                                                                                                   ! 6,021-07s 1 01i~
                                                                                                                                                                 ~  ~~~
                                                                                                                                                                                                      ~39.72 ~ ' ~
                                                                                                                                                                                                                '        i 'ELT M' ' ~? ". .

d.Ch6Ejh 3wj{hg*j)15.21 E;; .

                                                                                  ,ag        .u.           s        .          ,, , ca..                 ,,,;. .

4 PSEISNIC.'0.7G TRANS!ENflEVEWT 1-; HA2 :-:- OFFSITE! POWER ; AT J SEISMIC: LEVELSTG k M 4 NAZ I. DIESEL.j GENffA{0( A_T;dG ~ ' gg 7 :rgypg ; . o":" M kA63'M WBisT)T >

                                                                                                             *-   "                                ~

50,72- s MELT 2: 15.93E-07.? n 00?' E M41M*%eacMit E3.MtWI Ihtm. 9

                                                                                                                                                                                         '                     ~'           "

m , m.m 24 .n . x n. x - .

  • " FIREllN SW PtstPHOUSIGHtOSS'CKBOTE'OCEAW' SiJ TRAINS '~ ~ ^

0:NSERVICE WTER SYSTENi  ? LTRAIN A"~ L. n - 6 S.n ERV..IC..ELWAT.,ER TT i3..f S.T.E. M... n..R. A,.I_N ,8, TCRT1!$)fPL1I)('EFAE)E

                                                                                                                                                                  ",5;71E;07         Y.96?       :' 51A8?

21'!. 1 1(1.3Et0);VALOMF/.. . ,. g JQif E+{)(6 7E Q) p.5E;3)j # , , ,

                                                                                                                                                                        ' '" ~                                      ~: MELT' ' ' ' ' ~

o . ATWS L- LOSS Of MAIW: FEtDWATER5(PLNN + TLMN)

h. - 'S- SYS
  • REACTOR. TRIP.BOTH SSPS TRAINS AVAIL 4
                     .ET - PLANT POWER LEVEL > 40% TATUS' '
  • $ 7.LEMERGENCY;FEEDW Q ER f TURBINE,DRIVEM AND'. MOTOR.DRIVEM PUMPS 22iETLLP>.. ((WA3 3 )( 1JE8 *) ~ ~4 22E*07
                                                                                                                                                                              ~ " ~ ~'1.717
                                                                                                                                                                                                   .52.39?           .' MELT

[. (6 9E-9 3 m ( QiK;21@,)E. 27,., , ,

      ' FLOCX) IN TURBINE' BUILDING '*- LOSP E--SERYICE WATER SYSTEM 9-TRAIN A 55ERVICE WATER SYSTEM f; TRAIN B

EsA114stegg&iggq&sqghs;.m3 (W"A-20 GF"E:**W"WP" ^"c asemarygertoppr@nmiinos2MW

  • c**

mama MiaAghg:Ames>hsm ' MNioT$7MfEJMahid8E02TCA FMrasetteltate 4&shl8ERVfMMtSt $YSTEN!ECTRAW4

                                                       .#$gham_gwtwm.TERsv5T8m;-71.0Alu5 k MU 4a N gg   . _;...c~.
                                                                                      . . m ._, .ms _ ._
                                                        $NSE E$ TIM $ff:Ff}$58lPl[f 975'.6)(MISITDEIE.[                                                                           **N                           3YY3NNN$7                               [   I-             IbS$bbNbi$ b                    I Ub W Sis 1 & M i nssin M M M ? M % s !! b e hea m e = d d B h h w A d a ^ ^

Psessarc'eXTanensartnest

liNAtM0FF5 fit NWER Afl8E18hteTimti%50 l

MDp??

                                                          #.E%;ewhh*A 40-#c e.,4.wwmmm..m.pis.u,,f..ic.emagi.itgI,A.v.Y 0R4ste   ~-  .m                                                     -
                                                                                                                                                     .<.v.L .c. ww strTE     .< AM                      c O.s u.u R. 4WG..T.s T.w.5.G.

E- ' EO S.MJS4 'Pf?? - U-3 ~ ".* l M?f2' E.

                                                                                                                                                                                                                                              ! .,   70
                                                                                                                                                                                                                                                                           ' LM 073165W
                                                                                                                                                                                                                                                                                  ~ ~ ~ ~ " a.M!Q
                                                                                                                                                                                                                                                                                            " " ' " t:'...
                                                                                                                                                                                                                                                                                                     *" *,c.  . " m H.?;.i;j gigasj2t}dB.!!ddMittia' gig 2%2E{2{ghggge$ha                                                                                                          , ggggggsyj@y3 ,, g,,-
                                                                                                                                                                                                                                                                              ~ ^                           ""

_,,sh ,i RMLone:arieressnineuen (Minswpousnivofaseresusanton'.A D MM$$ERWlWMTERLSYSTEN)ff9Atu 9

                                                        % cmW Om
                                                      - wmmum.PWREC_pWERVi0.,F.?t.N.E   m; :                                                    m s_

2 -~.o. DM.m.m.0FF8IWPC.WE.t9. .

                                                                                                                                                                             .~om.EN. .

l l l l l-I l: 9 r s -

TABLE E2. jf4 M(EEL tamer lPCC,CHNG] Total Fremercy of Sewes in Group : MELT = 6.74F-US per year 06:44:56 24 FEB 1994' ., Rank Initiatirsg ----------------------- Failed or Multi-State Split Fractions----------------------- Frequency Percent Percent Et ai to. Event (Dependent *Guarantec e Faltures Excitzied) (per year) Cume State 1 LICCB ( PAA) 1.00E-05 14.84 14.84 MELT (3.7E-3) (2.7E-3) LOSS OF TRAIN 8 PRIMARY COMPONENT COOLING

                                                                         - PCC TRAIN A - GIVEN TRAIN 8 FAILED (L1CC8) 2           L1CCA                         ( Ps2d)                                                                                                                                                                                            1.00E-05 14.84        '29.67            MELT (3.7E-3)                     G 7-3)                                                                                                                                                                                                                                                         t LOSS OF TRAIN A PR.r.ARY COMPONENT COOLING
                                                                         - PCC TRAIN 8 - NO LOSP, TRANSIENT, OR SMALL LOCA - PA FAILED 4                                                                                                                                                                                                                                                                                                                                                            -;
                                                                                                                                                                                                             * ' ^ ^ ^                     '   ' ~           ^         " "~              ~

I2.07E06$3;07T "?^32.74 i CM ~^3 4

                                                                                                                                                                                                                                                                                                                                     " "ELT2 m g.g yd-k$j      F * ' [", , ,, b[

IkMll*.0Ed2yAj V 7 tOSP 1 gfigjgg.K;2)$8E;28ggM E Q @M Ctm3 H)gy.O148 h UjER9ln) m , , y m[ ~ ^ ^ ~ gTtoss or'enesTerrouEn . . f.Md DERVf E;idRTElt, SYSTEM E. TRAL #'A yOf*WsERVitiMhTER SYSTEM @TRAIM S K1L-4au@.wn%: z DPREC.~ .OW.E..R. CO.F; 0F.~F5.1TE ~ - Po.le.t-4 .FPCC3P (PS10) 1.68E-06 2.49 35.24 MELT (2.0E-4 ) (8.4E-3) FIRE IN PA8 - LOSS OF TRAIN A PCC AND RUhWING TRAIN B PUMP

                                                                         - PCC TRAIN 8 - GIVEN FIRE RESULTING IN LOSS OF NORMALLY RUNNING PLMP 5            FCRCC                        ( ORS 2 )                                                                                                                                                                                           1.61E-06 2.38          37.63            MELT (1.7E-5)                     (1.0E-1 )

FIRE IN CONTROL ROOM - PCC LOSS

                                                                         - OP - OPERATOR ACTION - RESTART PCC, SW FOR MC8 FIRE 6E ILOSPM:P3.WT:                                                                                                       P                      P'+       - " '             ' ^                          *       ~ ^~

w.y .

                                                                                                                                                                                                                                                                                                               ~~ *~'                ...lMELT?

r2  ? w a. ( 7.0.E. 4,2)

                                                                 .-          a      sk MT4.1.Er.2.)(~5 bwklaw(.      GA1Fi)F
                                                                                                 - . ~                      A. .. CSA E_-2)(~1.1E.,2)As-E)f ER1D      .

u m.,a.)? .:sww !. ~ am

                                                                                                                                                                                                                                      . v.a.a'
                                                                                                                                                                                                                                                 <,  ',x<   s,  .              . x.%wa
                                                                                                                                                                                                                                                                                   + .w P~^'~'""

31155Ea064i230 F l39.932~ "

                                                    ? ',')L0ss M OFFelftlPOWER W' M Ac:P0uERyofEstesenEaATORM g AC POWER N DIESEL?dENERATOR'E ...                                                                      ..

h sd.s n.em MO P hs.R$.C.OVE. n n F

                                                                                        . RY .0. a.D..OT.H 9../.G. $'     .

z AND C. FT_SI.T.E: ~- - P. OWER f.EFW 77 IE7T1_.$':VRM('OT75:)f OCTE P"^ ' ^ m.= 2MDfw " ** T 1.31E-06ht .94

                                                                                                                                                                                                                                                                                                             ~' ^ ?
                                                                                                                                                                                                                                                                                                                  ~

741'.875~ ~ m ~

                                                                                                                                                                                                                                                                                                                                         < MELT 'i M ND u.m(9._6E-1)(1;1Eki.,                                                                                                                                          #            #
                                                           .. i 6E.. S.ww.n*                J                                                                                                                                                                                         1.a"-"~~~^

m(.1. ~ ~ . _ . ~ Raw. J%w.u= s .

                                                                                                                                                                                                                  ~ ~       s   - .ma4                   ,.
_ a.. u e >
                                                              -i$ElSMIC1817GTTRANstENTEVENT iW HAZ McFF31TE POWERAT!$El$NIC LEVEIM7G '

m. E4

                                                              , . J): E HA. U. m.x,;1._6KV. !SWIT.C,HGEA,R
                                                                                                 .. -                       2 '._(REL_AT._CH.AT.T_ERlWG.. ~                               -

s )_' Af f_7G J

                                                                                   - These numbers were hand calculated.

2 8 % jiALON M S V N T RT1 7 10 PL1.4)F AM1 4 )I ~"" ~' ' W" 1 "M

                             $$$lhE$5MM%$3h4E,yM6.7EijM1.0E-2)Bpt.ag                                                                                                                                                                                                                                                                  71.02Et06?
                                                                                                                                                                                                                                                                                                                                        ~         ~ " " 1.59f"?
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REACTOR TRIP

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                                             - PCC TRAIN A - NO LOSP, TRANSIENT, OR SMALL LOCA
                                              - FCC TRAIN B - NO LOSP,. TRANSIENT, OR SMALL LOCA - PA FAILED
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                                          '-..SERVICflW4TER;5YSTEM 3-                                                                             .1TR. A.lW B.  .

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                                                                 - PCC TRAI3 8 - hO LOSP, TRANSEENT, OR SMALL LOCA - PA FAILED J 77 - SLOCAM                                 ."C L$2 F){ L657 )( RE T1 3)' .                                                                                       .7,10E-07E1.051
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                        - MTAM SWILDies SPmT - 1ERCilts im 1 acut - TRAls A 19 RT                                    C PR1 )( F52 3 (1.4E*0)               (2.9E-4)(2.1E-2)                                 2.80E-M . 2F     95.36  ELT REACTest TRIP
                        - PRIIERRY N CEOLimG - Tuls A
                        - MimeNT OprEEENT C8ellus - imIE B 11               PtitPtf                ( Pn1 )( Pa2 1 (1.1E+0)               (2.9E-4)(2.1E-2J                                 6.53E-M .22      95.5F   IELI PAsilAL Loes W 444100 F8mm mTER
                       - PGItuRET Omr43EEFT CDettet - Thkit A
                       - PRIRARY CsetMai CEEEHuG - TRA!E B

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                       - PtifuWtf CSWWENT C00LlaG - TRRia A
                       - Ptigt44Y Dup 01ERT CSELING - 18415 a 13 L1GB                                 ( PAA )( ZA2 3 M.X-2)                (2.1E-2){5.9E-3)                                  5.8eE-M .29      95.98   Ett Loss er imIn a Pelsenev Caspenest Contius -
                      - PtintRT CN CacLIIIE - 19A15 A
                      - MTA18EEM SIBF 1Attift (AIS m asst LES EUCTitMt 114tW1) - TBA3R A 14 L1CCA                                ( PS2 M 222 )

(&.X -2) (2.lf-2M$.IE-3) 5.86E-96 .29 96.19 ELT Lees er Tante A PansehrY Cappeammi CnoLies

                      - M tsenRT E m WO E M CDEE lus - 18435 3
                      - E551A3EBEM 23r BA&E (Am SIR N05 LEG suCTicer is4Lw.s) - TaAla A 15               LIC*m                 ( Paa )( CIA >                                    5.57E -06  .10   96.38 M.M-2)                (2.1E-2)(4.5E-33                                                           nEti Loss oF inate a Peipuutt tusecMEh1 COOLits
                     - PRDetAT CIBresENT CSEttes - TRAls A
                     - SYS - CIS (9thLL) - ALL 3RrreRT AntalLABLE la L1CCA                                ( PS2 )( CIA )                                    5.57E-06    19   96.57 (S.3E-2)               (2.1E-2)(4.5E-3)                                                           sEtt Loss Of TRA4s A PWIM4RY CEBPCRIEki COOLIDG
                     - PatschET CBFFDIIENT C00LilIE - TRAlu e                                                                  ,
                     - STS - C3s (WatLL) - ALL RsPrWT Aunli4:lf_F                                                            ,
                                                        ' ~~ -

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17 Ltoc31 ( PM 1( 2B6 ) O (6.3E -2) (2.1E-2)(4.X-3) 5.3CE -06 .18 96.75 MLi LOSS OF TRAIM 3 PRIst4RT CIMPOEST CuuttBS

                                                                                                 - PallmRT CDMrouEmi CDOLlas - TRAlu A
                                                                                                 - CONTAINMENT SWMF MALW (AAB But 307 LEG SUCitort VALVES) - TRAlt 8 18 L1CCA                                                         ( PS2 M ra6 3 (6.3E-2)                     (2.1E- 2)(4.3E-3)                                                       5.30E-06    .18    96.93              ELT test ot* Tattu A Patsuutf CIwoucir cooLiaG
                                                                                                - PRIfWAT GDFOWENT CuaIIgE - TAAIN S
                                                                                                - CUIf1AIREMT SW VALW (Age apt Not LEG SUCTION WALWS) - TRAIN 8 19 FPCC3P                                                         ( M2 )

(2.tE-4) (2.X-2) 4,43g.06 .15 97.09 teELT FIRE la Paa - Loss OF TRAlis A PCC Ama muutues 11 AIR e PtJtP

                                                                                               - CP - OPERATtR ACTION - SEPRE13UR12E - SIME SEAL LOCA (k[R-SSO) 20' LICIa                                                            ( Wm3 )

(6.3E-2) (5.4E-5) 3.19E-86 11 97.2s MLLY Lost GF TRAIR A PttstWtf OriPoNENT CEOLING

                                                                                               - BERVlm EdATER STETEM - TRAts S 21 L1 Cts                                                              ( W1 3 (4.3E-2)                          (5.2E-5)                                                                 3.0$E-06 .11       97.50              MELT LOS5 0F TRAIN B PRIMRY Ctpe'0ENT C00Lles
                                                                                              - SERVIM ndRTER SY5 FEM - TRAIN A
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                                                                                                        , .' .     . . .   . , : ss;n 23 FPCE3P                                                                 ( CM5 )

(2.8E-4) (9.4E-3) 1.77E-06 .06 97.43 MEtT FIM IN Paa - Lost OF TRAJW A PCC Ass RamibG TRA!M 8 M

                                                                                             - CDWTAlWENT AUILBitG EPRAT - IRJECTION gelee FOR 1 Isolm - TRAlli S 24 FPCC3P                                                                   ( CAT 3 (2.3E-4)                                (9.6E-3)                                                                  1.71E-06    .06   97.49           MELT FIRE ik PAR - LOSS OF TRAIM A PCC ANS RUNettalG TRAIN S Ptw
                                                                                            - CDEITA!IstENT BUILDEME SPGAY - I4JECTION FOR 1 ts0La - TSAIN A 25 FCRCC                                                                      ( ORS 2 )

(1.7E-5) (1.0E-1 ) 1.61E-06 .06 97.55 ELT FIRE IN EDeliROL 800M - PCC LDSS

                                                                                           - UP - OPERATOR ACIl0W - RESIERT PCC, SW FOR MCB FIRE WRCPs N01 TRtPPED   ECRCC, ICESN

TABLE E.Y t 3 MODEL Carme:lCC_SW . _ TS l Total Fregaency of Sequer.ces in GroLp : MELT = 7.15E-05 per yter 13:22:02 21 FES 1994 Rank Initiating ----------------------- Failed or Multi-State Split Fractions----------------------- Frequency Percent Percent End l Co. Event (Deperdent (per year) Cume State

 ......................................................." Guaranteed".. Failures Excluded) l  1        L1CCB                      ( PAA)                                                                                                                                          1.00E-05 13.99            13.99       MELT l           (3.7E-3)                   (2.7E-3)

LOSS OF TRAIN B PRIMARY COMPONENT COOLING

               - PCC TRAIN A - GIVEN TRAIN 8 FAILED (L1CCS) 2         L1CCA                      ( PS2 * ')                                                                                                                                        1.00E-05 13.99            27.97       MELT (3.7E-3)                   (2.7E-3)

LOSS OF TRAIN A PRIMARY COMPONENT COOLING l - PCC TRAIN 8 - NO LOSP, TRANSIENT, OR SMALL LOCA - PA FAILED

3 LOSP ( WA3 )( WB8 )( ER9 ) 2.18E-06 3.05 31.02 MELT l ( 7.0E-2) (1.2E-2)(6.4E-2)(4.8E-2)

LOSS OF OFFSITE POWER SERVICE WATER SYSTEM - TRAIN A

               - SERVICE WATER SYSTEM - TRAIN B
               - OP - RECOVERY OF OFFSITE POWER 4         FPCC3P                     ( PB10)                                                                                                                                         1.68E-06 2.35             33.37       MELT l           (2.0E-4)                   (b4E )

l 9.1G~1 FttE IN PAB - LOSS OF TRAIN A PCC AND RUNNING TRAIN B PUMP

               - PCC TRAIN B - GIVEN FIRE RESULT!kG IN LOSS 0F kORMALLY RUNNING PUMP f""^ $ORR)4'F" ~                        '
                                                                                                                                                                                      .~ .131E    06 ' 2,25- '

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l 6 L1SWB ( WAA )( WB16 ) 1.5 7E-06 2.20 37.82 MELT (5.3E-3) (7.1E-3)(4.5E-2 ) LOSS CF TRAIN B SERVICE WATER

               - SERVICE WATER SYSTEM - TRAIN A
               - SERVICE WATER SYSTEM - TRAIN B 71 'LOSP L . 2                 Y{" gat #)f GBAM )(?ER U ') '                                  '          ^                               '                                 '
-1.55E-0602.17 ' 3 39.99.
                                                                                                                                                                                                                ~~
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               - Cut Sets imported froen Worrell SETS
               - Cut Sets Inported from Worrell SETS
                          - These tubers were hand calculated.                                                                                                                                                                                  .

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   $hM2dI#d.EM33138;TjNM 13 RT                                    ( PA1 )( PB2 )                                                                                                                                       9.62E-07 1.35                49.38            MELT (1.4E+0)                       (1.1E-4)(6.7E-3)

REACTOR TRIP

                   - PCC TRAIN A - NO LOSP, TRANSIENT, OR SMALL LOCA
                    - PCC TRAIN 8 - NO LOSP, TRANSIENT, OR SMALL LOCA - PA FAILED 14 FLSW                                                                                                                                                                                        9.30E-07 1.30                50.68            MELT (1.1E-6)

EXTERNAL FLO3)ING - LOSS OF ALL SERVICE WATER 15 PLMFW ( PA1 )( PS2 ) 8.05E-07 1.12 51.80 MELT (1.1E+0) (1.1E-4)(6.7E-3) PARTIAL LOSS OF MAIN FEEDWATER

                  - PCC TRAIN A - NO LOSP, TRANSIENT, OR SMALL LOCA
                   - PCC TRAIN 8 - NO LOSP, TRAWSIENT, CR SMALL LOCA - PA FAILED -

16 TT ( PA1 )( PB2 ) 7.63E-07 1.07 52.87 MELT (1.1E+0) (1.1E-4)(6.7E-3) TUR8INE TRIP

                  - PCC TRAIN A - NO LOSP, TRANSIENT, OR SMALL LOCA
                  - PCC TRAIN 8 ,- NO LOSP, TRANS!ENT, OR SMALL LOCA - PA FAILED 17 7 SLOCA ? _..                        ^ W L52 ? 10LL65 F)(:RMtTt "1 L                                                                                                                       . 7.10E-OL         '.99 s
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                                       - SERVICE WATER SYSTEM - TRAIN A
                                       - SERVICE WATER SYSTEM - TRAIN 8 197.AttNorERMMiiP RT119 CPL 1R)C at t fir Pss3 t# )g"                                                                       "T" WF                     " "' I          *'*

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         $$6~36 stsM AEACTot: 0FWl877tEBimTEi!'(Pl.strti43Til#W)                                                                                        $.

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                                       - SERVICE WATER SYSTEM - TRAIN A
                                       - SERVICE WATER SYSTEM - TRAIN B 23 FLLP                                                ( WA3 )( WB8 )                                                                                                                                  4.46E-07 .62                   58.74                                 MELT (6.9E-4)                       (1.2E-2)(6.4E-2)

FLOOD IN TURBINE BUILDING - LOSP

                                      - SERVICE DATER SYSTEM - TRA!N A
                                       - SERVICE WAf tit SYSTEM - TRAIN 8 24 PLMFW                                               ( WA1 )( WB2 3                                                                                                                                  4.22E-07 .59                   59.33                                 MELT (1.1E+0)                       (5.6!-5)(7.1E-3)

PARTIAL LOSS OF MAIN FEEDWATER

                                      - SERVICE WATER S*tSTEM - TRAIN A
                                      - SERVICE WATER SYSTEM - TRAIN 8 25? )ESTE W ~* ~ TQY57)(1OK5M)X *
                                                                                                                              ~                            ~                                   '      ^
                                                                                                                                                                                                             ?~ ~4.00E-07
                                                                                                                                                                                                                  ' " " ^ ' " ' ^8541:
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  • YA6LE b. -

MODEL Names PCC BASE

  • Split FrretIon Repor I Ta7 iop ' tvent PA M '

15:28:19 09 FEB 1994 Page 1 Split Fraction PA1 . PCC TRAIN A . NO LOSP, TRANSIENT OR SMALL LOCA PE Mean = 1.0352E.04 Date : 08 FEB 1994 14:14 Basic Event lapacts for Split Fraction : PA1 Basic Event State Description XX.TRAINA.XX 5 TRAIN A SUPPORT SYSTEMS UNAVA!LABLE XX. TRAIN 8.XX F TRAIN 8 $UPPORT AVAILABLE 4 XX.0$P.XX $ OFFSITE POWER AVAILABLE XX.LLOCA.XX $ NO MEDIUM OR LARGE LOCA PRESENT XX.SLOCA.XX F NO SMALL LOCA, SGTR, OR SLBI PRESENT XX. TRANSIENT.XX F LONG TERM RHR COOLDOWN (TRANSIENT INITIATORS) Split Fraction PA2 . PCC TRAIN A . LOSP PE Mean a 3.1090E 04 Date 08 FEB 1994 14:14 Gesic Event Impacts for Split Fraction : PA2 Baalc Event State Description XX.1RAINA.XX 5 TRAIN A SUPPORT SYS% MS UNAVAILABLE XX.TRAINB.XX F TRAIN 8 $UPPO;;T E4AILABLE XX.0$P.XX F OFFSITE P M R AVAILABLE XX.LLOCA.XX $ NO MEDf'A OR LARGE LOCA PRESENT XX.SLOCA.XX F No 'eMALL LOCA, SGTR, OR SLSI PRESENT XX. TRANSIENT.XX F LONG TERM RHR COOLDOWN (TRANSIENT INITIATORS) Split Fraction PA3 . PCC TRAIN A . MEDitM OR LARGE LOCA - l PE Mean = 3.9137E.04 Date : 08 FE8 1994 14:14 Basic Event lopects for. Split Fraction : PA3 i Basic Event State Description XX.TRAINA.XX S TRAIN A SUPPORT SYSTEMS UNAVAILABLE XX. TRAIN 8.XX F TRAIN 8 SUPPORT AVAILA8LE XX.0$P.XX $ OFFSITE POWER AVAILABLE j XX.LLOCA.XX F NO MEDIUM OR LARGE LOCA PRESENT J I XX.5LOCA.XX $ NO SMALL LOCA, SGTR, OR SLBI PRESENT XX. TRANSIENT.XX S LONG TERM RNR COOLDOWN (TRANSIENT INITIATORS) i Split Fraction PAA . PCC TRAIN A . GIVEN TRAIN 8 FAILED i l PE Mean = 6.9650E.03 Date : 08 FES 1994 14:14 I l Equation: PCC1/PA1 l

                                                                                                                                                       -)

Split Fraction PAF . PCC TRAIN A . GUARANTEED FAILURE . PE Mean 1.0000E+00 Date : 08 FEB 1994 14:14 I MC/LM Mean = 1.0000E+00 Date : 23 JUN 1993 22:21 l Constant Value 1.0 a I

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

MODEL Name: PCC_ BASE Split Frcction Report for Top Event PB 15:28:22 09 FEB 1994 Page 2 Split Fraction PB1 - PCC TRAIN B, NO LOSP, TRANSIEkT OR SMALL LOCA, SINGLE TRAIN PE Mean = 1.0352E 04 Date : 08 FEB 1994 14:14 Basic Event Inpacts for Split Fraction : PB1 Basic Event State Description XX.TRAINA.XX F TRAIN A SUPPORT STSTEMS UNAVAILABLE XX.TRAINB.XX $ TRAIN B SUPPORT AVAILABLE XX.0SP XX $ OFFSITE POWER AVAILABLE XX.LLOCA XX $ NO MEDIUM OR LARGE LOCA PRESENT XX.SLOCA.XX F No tMALL LOCA, SGTR, OR SLBI PWESENT XX.TRANS!ENT.XX F LONG TERM RHR COOLDOWN (TRANSIENT INITIATORS) Split Fraction PB2 - PCC TRAIN B, NO LOSP, TRANSIENT OR SMALL LOCA, PA FAILED PE Mean = 6.9650E-03 Date : 08 FEB 1994 14:14 Conditional Split Fraction: PCC1/PA1 Split Fraction PS3 PCC TRAIN B. NO LOSP. TRANSIENT OR SMALL LOCA, GIVEN PA SUCCESS PE Mean = 1.0280E 04 Date : 08 FEB 1994 14:14 Conditional Split Fraction: (PB1 - PCC1)/(1*PA1) Split Fraction PB4 - PCC TRAIN B, LOSP, SINGLE TRAIN PE Mean = 3.1090E 04 Date : 08 FEB 1994 14:14 Basic Event Impacts for Split Fraction : PB4 i Basic Event State Description XX.TRAINA.XX F TRAIN A SUPPORT STSTEMS UNAVAILABLE XX.TRAINB.XX S TRAIN B SUPPORT AVAILABLE XX.0SP.XX F 0FFSITE POWER AVAILABLE XX.LLOCA.XX S NO MEDILM OR LARGE LOCA PRESENT XX.SLOCA.XX F NO SMALL LOCA, SGTR, OR SLB! PRESENT XX. TRANSIENT.XX F LONG TERM RHR COOLDOWN (TRANSIENT INITIATORS) Split f raction PBS PCC TRAIN B, LOSP, PA FAILED PE Mean = 8.9930E 03 Date : 08 FEB 1994 14:14 Corditional Split Fraction: PrC2/PA2 Split f raction PB6 PCC TRAIN B, LOSP, PA SUCCESSFUL PE Mean = 3.0820E 04 Date : 08 FEB 1994 14:c, Corditional Split Fractions (PB4-PCC2)/(1-PA2) l I 1 i l

e'

          +'

3 l} MODEL Emmer PCC_8ASE Split Fraction Report for Top Event PB 15:28:25 09 FEB 1994 i Page 3 1 Split Fraction P87 PCC TRAlb 8, MEDIUM OR LLOCA, $1NGLE TRAIN PE Mean = 3.9096E 04 Date : 08 FEB 1994 14:14 8aefc Event Impacts for Split Fraction P87 Basic Event State Description

                          ................ ..... ..............+..............................................................................

XX.TRAINA.XX F TRAIN A SUPPORT SYSTEMS UNAVAILABLE i XX. TRAINS.YX S TRAIN 8 SUPPORT AVAILABLE XX.0SP.XX $ OFFSITE POWER AVAILABLE XX.LLOCA.XX F NO MEDIUM OR LARGE LOCA PRESENT XX.SLOCA.XX $ NO SMALL LOCA, SGTR, OR SL81 PRESENT XX. TRANSIENT.XX $ LONG TERM RHR C00LDOWN (TRANSIENT INITIATORS) l Sptlt Fraction PBS . PCC TRAIN 8, MEDIUM OR LLOCA, PA FAILED

                                                                                                                                                         ]

PE Mean = 5.6460E-02 Date : 08 FE8 1994 14:14 Conditional Split Fraction: PCC3/PA3 Split Fraction P89 - PCC TRAIN 8, MEDIUM OR LLOCA, PA SUCCESSFUL PE Mean = 3.6910E 04 Date : 08 FEB 1994 14:14 Conditional Split Fraction (P87 PCC3)/(1-PA3) Split Fraction PSF - PCC TRAIN 8, GUARANTEED FAILURE PE Mean = 1.0000E+00 Date : D8 FEB 199414:14 Constant Values 1.0 Split Fraction PB10 - PCC TRAIN 8, GIVEN FIRE RESULTING IN LDSS OF NORMALLY RUNNING PUMP PE Mean = 1.2631E 02 Date : 08 FEB 1994 14:14 Basic Event Impacts for Split Fraction : P810 , Basic Event State Description XX.LLOCA.XX S NO MEDIUM OR LARGE LOCA PRESENT XX, TRANSIENT.XX F LONG TERM RHR COOLDOWN (TRANSIENT INITIATORS) XX.0$P.XX $ OFFSITE POWER AVAILABLE XX. TRAINS.XX S TRAlW 8 SUPPORT AVAILABLE XX.TRAINA.XX $ TRAIN A SUPPORT SYSTEMS UKAVAILABLE XX.SLOCA.XX F NO SMALL LOCA, SGTR, OR SLB1 PRESENT. VL.CCV301.CL F P 118 SUCTIDN GATE VALVE CC V301 TRANSFERS CLOSED VL.CCV296.CL F P 118 DISCHARGE GATE VALVE CC V296 TRANSFERS CLOSED CV.CCV295.CL F P 118 DISCHARGE CHECC VALVE CC.V295 TRANSFERS CLOSED , , 1 L i' I

  . . . ,       ,,.y                     3..    ..                  -   e           _          ~        -             ,           ._- , _ _ _ _ .
  .-               -.         ,               .           -.~ .                  .    -      -.            .        .       .        -. ..     .

el )L hgy MODEL Names. Split Fraction Report TCC_CHNG) vor rop Event PA e 09:07:25. 10 FEB 1994' PaBe 1-Split Fraction PA1 - PCC TRAIN A a NO LOSP, TRANSIENT OR SMALL LOCA PE Mean = 1.1314E 04 Date : 10 FEB 1994 08:16  : Basic Event Impacts for Split Fraction : PA1 Basic Event State Description XX.TRAINA.XX S TRAlW A SUPPORT SYSTEMS UNAVAILABLE XX.TRAINE.XX F TRAIN B SUPPORT AVAILABLE XX.0$P.XX- 5 0FFSITE POWER AVAILABLE XX.LLOCA.XX S NO MEDilm OR LARGE LOCA PRESENT XX.SLOCA.XX F NO SMALL'LOCA, SGTR, OR SLBI PRESENT XX. TRANSIENT.XX F LONG TERM RHR COOLDOWN (TRANSIENT INITIATORS) Split Fraction PA2 PCC TRAIN A . LOSP PE Mean = 3.T&31E 04 Date : 10 FEB 1994 08:16 Basic Event Impacts for Split Fraction : PA2 Basic Event State Description XX.TRAINA.XX 5 TRAIN A SUPPORT SYSTEMS UKAVAILABLE XX.TRAlWB.XX F TRAIN B SUPPORT AVAILABLE XX.0SP.XX F OFFSITE POWER AVAILABLE XX.LLOCA.XX $ NO MEDllM OR LARGE LOCA PRESENT XX.SLOCA.XX F NO SMALL LOCA, SGTR, OR SLBI PRESENT XX. TRANSIENT.XX F LONG TERM RHR C00LDOWN (TRANSIENT INITIATORS) Split Fraction PA3

  • PCC TRAIN A - MEDIUM OR LARGE LOCA PE Mean = 4.0100E 04 Date : 10 FEB 1994 08:16 Basic Event Impacts for Split Fraction PA3 Basic Event State Description XX.TRAlWA.XX $ TRAIN A SUPPORT STSTEMS UKAVAILABLE XX.TRAINB.XX F TRAIN 5 SUPPORT AVAILABLE XX.0$P XX S OFFSITE POWER AVAILABLE XX.LLOCA.XX F No MEDILM CR LARGE LOCA PRESENT XX.SLOCA.XX S NO SMALL LOCA, SGTR, OR SLB1 PRESENT -

XX. TRANSIENT XX $ LONG TERM RHR COOLDOWN (TRANS!ENT INITIATORS) 1 Split Fraction PAA - PCC TRAIN A

  • GIVEN TRAIN B FAILED l

PE Mean a 6.7060E 03 Date : 10 FEB 1994 08:16 E quation: PCC1/PA1 i I l Split Fraction PAF - PCC TRAIN A

  • GUARANTEED FAILURE PE Mean = 1.0000E+00 Date : to FEB 1994 08:16 Constant value: 1.0 1
 -       < .          m-    m   .        .m            .        . . -. ...          .-          -       - _ -     -    .-             . _
t} '3 -

e MODEL Wase: PCC CHNG Split Fraction Report for Top Event PB 09:07:28 10 FEB 1994 Page 2 Split Fraction P91 PCC TRAIN B, NO LOSP, TRANSIENT OR SMALL LOCA, SINGLE TRAIN PE Mean = 1.1314E-04 Date : 10 FEB 1994 08:16 Basic Event impacts for Split Fraction : P81 Bosic Event state b3scription XX.TRAINA.XX F TRAIN A SUPPORT SYSTEMS UNAVAILABLE  ! XX. TRAINS.XX $ TRAIN B SUPPORT AVAILABLE f XX.0SP.XX $ OFFSITE POWER AVAILABLE

  • XX.LLOCA.XX S NO MEDIUM OR LARGE LOCA PRESENT XX.SLOCA.XX F NO SMALL LOCA, SGTR, 04 SL81 PRESENT XX. TRANSIENT.XX F LONG TERM RMR C00LDOWN (TRANSIENT INITI ATORS)

Split Fraction PB2 - PCC TRAIN B, NO LOSP, TRANSIENT OR SMALL LOCA, PA FAILED PE Mean = 6.7060E 03 Date : 10 FEB 1994 08:16 Conditional Split Fraction: PCC1/PA1 Split Fraction P83 - PCC TRAIN 8, NO LDSP, TRANSIENT OR SMALL LOCA, GIVEN PA SUCCESS PE Mean = 1.1240E-04 Date : 10 FEB 1994 08:16 Conditional Split Fraction: (PS1 PCC1)/(1 PA1) Split fraction P84 - PCC TRAIN B, LDSP, $1NCLE TRAIN PE Mean = 3.7531E-04 Date : 10 FEB 1994 08:16 Basic Event Impacts for Split Fraction : PB4 Basic Event State Description XX.TRAINA.XX F TRAIN A SUPPORT SYSTEMS UNAVAILABLE XX.T RAINS.XX S . TRAIN B SUPPORT AVAILABLE XX.0$P.XX F OFFSITE POWER AVAILABLE XX.LLOCA.XX S NO MEDIUM OR LARGE LOCA PRESENT XX.5LOCA.XX F NO SMALL LOCA, SGTR, OR SLBI PREClNT XX. TRANSIENT.XX F LONG TERM RHR C00LDOWN (TRANSIENT INITIATORS) Split Fraction PB5 PCC TRAIN 8, LOSP, PA FAILED PE Mean = 7.5830E 03 Date : 10 FES 1994 08:16 Conditional Split Fraction: PCC2/PA2 , Spllt Fraction PB6 - PCC TRAIN 8, LOSP, PA SUCCESSFUL l PE Mean = 3.7550E 04 Date : 10 FEB 1994 08:16 Conditional Split Fractions (P&4 PCC2)/(laPA2) i i 11

                                                                                                                                     '3 '3 MODEL Name: PCC CHNG Split Fraction Report for Top Event PB
  • 09:07:31 10 FEB 1994 Page 3 Split Fraction PB7 PCC TRAIN B, MEDIUM OR LLOCA, $1NGLE TRAIN l

PE Mean = 4.0059E 04 Date : 10 FEB 1994 08:16 ] Basic Event I macts for Split Fraction : PB7 Basic Event State Description XX.TRAINA.XX F TRAIN A SUPPORT SYSTEMS UNAVAILA8LE l XX.TRAINB.XX $ TRAIN 8 SUPPORT AVAILABLE XX.OSP.XX $ OFFSITE POWER AVAILABLE XX.LLOCA.XX F NO MEDILM OR LARGE LOCA PRESENT XX.5LOCA.XX S NO SMALL LOCA, SGTR, OR SLSI PRESENT XX. TRANSIENT.XX S LONG TERM RHR C00LDOWN (TRANSICNT INITIATORS) Split Fraction PB8 PCC TRAIN B, MEDIUM OR LLOCA, PA FAILED PE Mean a 5.5200E-02 Date : 10 FEB 1994 08:16 Conditional Split Fraction: PCC3/PA3 Split fraction PB9 - PCC TRAIN B, MEDIUM OR LLOCA, PA SUCCESSFUL PE Mean = 3.7860E-04 Date : 10 FEB 1994 03:16 Conditional Split Fraction: (PB7 PCC3)/(1-PA3) Split Fraction PBF - PCC TRAIN B, GUARANTEED FAILURE PE Hean = 1.0000E+00 Date : 10 FEB 1994 08:16 Cortstant Value: 1.0 Split Fraction PB10 - PCC TRAIN B, GIVEN FIRE RESULTING IN LOSS OF NORMALLY RUNNING PUMP PE Mean = 5.3362E 02 Date : 10 FEB 1994 08:16 Basic Event Imacts for Split Fraction : PB10 Basic Event State Description XX.LLOCA XX $ NO MEDILM OR LARGE LOCA PRESENT XX. TRANSIENT.XX F LONG TERM RHR COOLDOWN (TRANSIENT INITIATORS) XX.0$P.XX S OFFSITE POWER AVAILABLE XX.TRAINB.XX $ TRAIN 8 SUPPORT AVAILABLE XX.TRAINA.XX $ TRAIN A SUPPORT SYSTEMS UNAVAILABLE XX.5LOCA.XX F NO SMALL LOCA, SGTR, OR SLB1 PRESENT VL.CCV301.CL F P 118 SUCTION GATE VALVE CC-V301 TRANSFERS CLOSED VL.CCV2%.CL F P 11B DISCHARGE GATE VALVE CC Y296 TRANSFERS CLOSED CV.CCV295.CL F P 118 DISCHARGE CHECX VALVE CC.V295 TRANSFERS CLOSED .}}