ML20083K094

From kanterella
Jump to navigation Jump to search
Reliability Analysis Report for Balance of Plant Engineered Safety Features Actuation Sys, W/Revised App C Data from 781213,addl App C Data from 781212,reliability Slides from 781211, & Description of BOP ESFAS Auto Test
ML20083K094
Person / Time
Site: Palo Verde  Arizona Public Service icon.png
Issue date: 10/31/1978
From:
ARIZONA PUBLIC SERVICE CO. (FORMERLY ARIZONA NUCLEAR
To:
Shared Package
ML20083K093 List:
References
E-115-751, NUDOCS 7901040078
Download: ML20083K094 (151)
v • d • e


Text

'

, L$" ,

(h) -

())

s l

l APPENDIX C l l

COMPUTER RELIABILITY COMPUTATION FOR PALO VERDE NUCLEAR GENERATING STATION BALANCE OF PLANT ENGINEERED SAFETY FEATURES ACTUATION. SYSTEM BECHTEL JOB 10407 PURCHASE ORDER 10407-13-JM-104 DECEMBER 13, 1978 PROJECT NO. 2192 GENERAL ATOMIC COMPANY ELECTRONIC SYSTEMS DIVISION P O BOX 81608 SAN DIEGO, CALIFORNIA 92138 19 /ofof 7Y D

c

'^

. g -

MISSION TIME;0 COMPONENT RELIABILITY DATA TABLE

=========================================================
FAILURE RELIABILITY SUBSYSTEM. COMPONENT RATE PER FOR 0 HRS MILLION HRS INITIATING ' CHANNEL FOR 12.5 1 FBEVAS, CREFAS, CPIAS ACTUATING CHANNEL 8 RELAYS 7 17 1 FOR FBEVAS, CREVAS, CPIAS -

AC POWER SOURCE 40 1 DC POWER SOURCE 4 1 AC TO DC POWER SUPPLY 25 1

~

DC TO DC POWER SUPPLY 25 1 INITIATING CHANNEL FOR CREVIAS 15.8 1 ACTUATING CHANNEL FOR CREVI S 7.87 1 LOP /LS MODULE-A. TRIP SECTION 5 77 1 B. 2/4 AND OUTPUT 11.8 1 s

DGSS ,

11.6 . 1 ESF LOAD SEQUENCER 20.7 1 RELIABILITY BY SUBSYSTEM

-_-------j- _- --_--_-_-

SUBSYSTEM RELIABILITY i'

POWER SUPPLY 1 FBEVAS ' 1 CREFAS J . 1 CPIAS' . 1 CREVIAS(SMCROA) 1 CREVIAS(HGCROA) 1 ,

DGSS '

1' l LOSS OF POWER . 1 i

LOAD SEQUENCER . 1 TOTAL SYSTEM' RELIABILITY'FOR 0 HOUR MISSION TIME: 1

= , , - +

g. g -

-l t ,

I

^

MISSION TIME *48 -

COMPONENT RELIABILITY DATA TABLE

==============-an=========================================

FAILURE RELIABILITY SUBSYSTEM COMPONENT RATE PER FOR 48- HRS MILLION HRS '

INITIATING CHANNEL FOR 12.5 .9994 FBEVAS, CREFAS, CPIAS -

ACTUATING CHANNEL-3 RELAYS 7.17 .999656 -

FOR'FBEVAS. CREVAS, CPIAS -

l AC POWEf( SOURCE ,

40 .998082 DC POWER SOURCE .

4 .999808 AC TO DC POWER SUPPLY 25 .998801 . .

DC TO DC POWER _ SUPPLY 25 .998801 INITIATING CHANNEL FOR CREVIAS 15.8 .999242

~

ACTUATING CHANNEL FOR CREVIAS -7.87 .999622- _

LGP/LS MODULE A. TRIP SECTION- 5.77 .999723 B.~2/4 AND OUTPUT 11.8 .999434 DGSS 11.6 .999443 ESF LOAD SEQUENCER - 20.7 .999007/;

RELIABILITY BY SUBSYSTEM Y

SUBSY TEM RELIABILITY ~

POWER SUPPLY .999996 '

FBEVAS .999999 '~

CREFAS .999999 -

CPIAS .< .999999

  • O CREVIAS(SMCROA): .999999 -

CREVIAS(HGCROAT .999999 _

DGSS l' +

' LOSS OF POWER 1.

LOAD SEQUENCER, .999999--

  • i TOTAL SYSTEM RELIAB'LITY FOR'48 HOUR MISSION TIME' .9999.99 e \

_4 v^'

jW 9

,( ,A * *

, // s . **

.'~'^ .. j ' )-

' ' * , [ ,'

  • i - '

-I -- , [;{

i, , .~ - .,.

'. h h+

MISSION TIME:96 COMP,0NENT RELIABILITY DATA TABLE

=====..===============_===_========,============_=========

FAILURE RELIABILITY SUBSYSTEM COMPONENT RATE PER FOR 96 HRS MILLION HRS .

4 INITIATING CHANNEL FOR 12.5 .998801 FBEVAS, CREFAS, CPIAS ACTUATING CHANNEL 3 RELAYS 7.17 .999312 FOR FBEVAS, CREVAS, CPIAS '

AC POWER' SOURCE 40 .996167 DC POWER SOURCE 4 .999616 AC TO DC POWER SUPPLY 25 .997603 DC TO DC POWER SUPPLY 25 .997603 INITIATING CHANNEL FOR CREVIAS 15.8 .998484 ACTUATING CHANNEL FOR CREVIAS 7.87 .999245

  • LOP /LS MODULE A. TRIP SECTION 5.77 .999446 B. 2/4 AND OUTPUT 11.8 .998868 DGSS 11.6 -

.998887 ESF LOAD SEQUENCER- 20.7 .998015 RELIABILITY-BY SUBSYSTEM SUBSYSTEM RELIABILITY POWER SUPPLY .999983.

FBEVAS .999997 CREFAS *

.999997.

CPIAS -

.999998-CREVIAS(SMCROA) .999997 CREVIAS(HGCROA) .999997.-

DGSS .999999 '

LOSS OF POWER .999999 ~

LOAD SEQUENCER .999996 TOTAL SYSTEM RELIABI'LITY FOR 96 HOUR MISSION TIME: .999997 l

l l

l -, . .

O. 9

. MISSION TINE 144 .

i l

COMPONENT REL.TABILITY DATA TABLE I 1

a========================a==========================================z FAILURE RELIABILITY l SUBSYSTEM COMPONENT RATE PER- FOR 144 HRS MILLION HRS .

t INITIATING CHANNEL FOR 12.5 .998201 FBEVAS, CREFAS, CPIAS .

ACTUATING CHANNEL 1 RELAYS 7.17 .998968 FOR FBEVAS, CREVAS, CPIAS AC POWER SOURCE 40 .994257 DC POWER SOURCE ,

4 .999424 AC TO DC POWER SUPPLY 25 .996406

~

DC TO DC POWER SUPPLY 25 .996406 INITIATING CHANNEL FOR CREVIAS 15.8 .997727 ACTUATING CHANNEL FOR CREVIAS 7.87 .998867 LOP /LS MODULE A. TRIP SECTION 5.77 .999169 B. 2/4 AND OUTPUT 11.8 .998302 DGSS 11.6 .998331 ESF LOAD SEGUENCER ,

20.7 .997023 RELIABILITY BY SUBSYSTEM SUBSYSTEM RELIABILITY POWER SUPPLY .999961 FBEVAS .999994

l. -

CREFAS .999994 CPIAS . .999995 CREVIAS(SMCROA) .999993 CREVIAS(HGCROA) .999993 DGSS .999997 LOSS OF POWER .999997 LOAD SEQUENCER .999991 TOTAL SYSTEM RELIABILITY FOR 144 HOUR MISSION TIME: .999995 t

O

\

MISSION TIME!192 COMPONENT RELIABILITY DATA TABLE

==============================================================

FAILURE RELIABILITY SUBSYSTEM COMPONENT RATE PER FOR 192 PRS MILLION HRS INITIATING' CHANNEL FOR 12.5 .997603 FBEVAS, CREFAS, CPIAS ACTUATING CHANNEL 8 RELAYS 7.17 .998624 FOR FBEVAS, CREUAS, CPIAS -

AC POWER SOURCE 40 .992349 DC POWER SOURCE 4 .999232 AC TO DC POWER SUPPLY 25 .995211 DC TO DC POWER SUPPLY 25 .995211 INITIATING CHANNEL FOR CREVIAS 15.8 .996971 ACTUATING CHANNEL FOR CREVIAS 7.87 .99849 LOP /LS MODULE A. TRIP SECTION 5.77 .998893 B. 2/4 AND OUTPUT 11.8 .997737.

DGSS 11.6 .997775 ESF LOAD SEOUENCER 20.7 .996033

. RELIABILITY BY SUBSYSTEM SUBSYSTEM RELIABILITY.

POWER SUPPLY .999931 FBEVAS .99999

, CREFAS .99999 l CPIAS .999992 CREVIAS(SNCROA) .999988 CREVIAS(HGCROA) .999988 1

DGSS .999995 ~

LOSS OF POWER .999995 -

LOAD SEGUENCER .999984 TOTAL SYSTEM RELIABILITY FOR 192 HOUR MISSION TIME: .99999 l

22/13/79

m -

O {

\

i MISSION TIME:240

  • i COMP 0NENT RELIABILITY DATA TABLE l

=========_=======_=====================================_=============-

FAILURE RELIABILITY SUBSYSTEM COMPONENT RATE PER FOR 240 HRS MILLION HRS INITIATING CHANNEL FOR 12.5 .997004 FBEVAS, CREFAS, CPIAS -

ACTUATING CHANNEL 8 RELAYS 7.17 .998281 FOR FBEVAS, CREVAS, CPIAS AC POWER SOURCE 40 .990446 DC POWER SOURCE 4 .99904 AC TO DC POWER SUPPLY 25 .994018 DC TO DC POWER SUPPLY 25 .994018 INITIATING CHANNEL FOR CREVIAS 15.8 .996215 ACTUATING CHANNEL FOR CREVIAS 7.87 .998113 LDP/LS MODULE A. TRIP SECTION 5.77 . 998616 B. 2/4 AND OUTPUT 11.8 .997172 DGSS 11.6 .99722 ESF LOAD SEQUENCER 20.7 .995044 RELIABILITY BY SUBSYSTEM SUBSYSTEM RELIABILITY POWER SUPPLY .9998,93 FBEVAS .999984 CREFAS '999984 CPIAS -

.999987 CREVIAS(SMCROA) .999981 CREVIAS(HGCROA) .999981 DGSS .999992 LOSS OF POWER .999991 LOAD SEGUENCER .999974 TOTAL SYSTEM. RELIABILITY FOR 240 HOUR MISSION TIME: .999984

U C k

MISSION TIME 288 COMPONENT RELIABILITY DATA TABLE

=========================================================

FAILURE RELIABILITY SUBSYSTEM COMPONENT RATE PER FOR 288 HRS MILLION HRS INITIA[ING'CHANNELFOR 12.5 .996406 FBEVAS, CREFAS, CPIAS ACTUATING CHANNEL 8 RELAYS 7.17 .997937 FOR FBEVAS, CREVASr CPIAS AC POWER SOURCE 40 .988546 DC POWER SOURCE 4 .998849 AC TO DC F;OWER SUPPLY 25 .992826

  • DC TO DC POWER SUPPLY 25 .992826 INITIATING CHANNEL FOR CREVIAS 15.8 .99546 ACTUATING CHANNEL FOR CREVIAS 7.87 .997736 LOP /LS MODULE A. TRIP SECTION 5.77 .99834 B. 2/4 AND OUTPUT 11.8 .996607 DGSS 11.6 .996665 ESF LOAD SEQUENCER 20.7 .994056 RELIABILITY BY SUBSYSTEM SUBSYSTEM RELIABILITY POWER SUPPLY .999846 FBEVAS .999977 CREFAS .999977 CPIAS .999981 CREVIAS(SMCROA) .999972 CREVIAS(HGCROA) .999972 DGSS .999988 LOSS OF POWER . 999987 '

LOAD SEQUENCER .999963 TOTAL SYSTEM RELIABILITY FOR 288 HOUR MISSION TIME: .999977 e s= ,4 =4== ~

6 s

s -

MISSION TIME:336 COMPONENT RELIABILITY DATA TABLE

=========================================================

FAILURE RELIABILITY SUBSYSTEM COMPONENT RATE PER FOR 336 HRS MILLION HRS INITIATING CHANNEL FOR 12.5 .995809 FBEVAS, CREFAS, CPIAS -

ACTUATING CHANNEL 8 RELAYS 7.17 .997594 FOR FBEVAS, CREVAS, CPIAS AC POWER SOURCE 40 .98665 DC POWER SOURCE 4 .998657 AC TO DC POWER SUPPLY 25 .991635 DC TO DC POWER SUPPLY 25 .991635 INITIATING CHANNEL FOR CREVIAS 15.8 .994705 ACTUATING CHANNEL FOR CREVIAS 7.87 .997359 LOP /LS MODULE A. TRIP SECTION 5.77 .998063 B. 2/4 AND OUTPUT 11.8 .996043 DGSS 11.6 .99611 ESF LOAD SEQUENCER 20.7 .993069

__ ==-------------

RELIABILITY BY SUBSYSTEM SUBSYSTEM RELIABILITY POWER SUPPLY .999791 FBEVAS .999968 CREFAS .999968 CPIAS -

.999974 CREVIAS(SMCROA) .999962 CREVIAS(HGCROA) .999962 DGSS .999984 -

LOSS OF POWER .999983 '

LOAD SEQUENCER .999949 l TOTAL SYSTEM RELIABILITY FOR 336 HOUR MISSION TIME: .999969

~I

l MISSION TIME:384 i

COMPONENT RELIABILITY DATA TABLE

===================_-============_=============_=============_

FAILURE RELIABILITY SUBSYSTEM. COMPONENT RATE PER FOR 384 HRS MILLION HRS INITIATING CHANNEL FOR 12.5 .995211 FBEVAS, CREFAS, CPIAS ACTUATING CHANNEL 3 RELAYS 7.17 .99725 FOR FBEVAS, CREVAS, CPIAS -

AC POWER SOURCE 40 .984757 DC POWER SOURCE , 4 .998465 AC TO DC POWER SUPPLY 25 .990446 DC TO DC POWER SUPPLY 25 .990446 INITIATING CHANNEL FOR CREVIAS 15.8 .993951 i

ACTUATING CHANNEL FOR CREVIAS 7.87 .996982 LOP /LS MODULE A. TRIP SECTION 5.77 .997787 B. 2/4 AND OUTPUT 11.8 -

.995479 DGSS 11.6 .995556-ESF L-0AD SEQUENCER 20.7 .992083 RELIABILITY BY SUBSYSTEM SUBSYSTEM RELIABILITY POWER SUPPLY .999727.

FBEVAS .999958 CREFAS .999958 i CPIAS .

.999965 CREVIAS(SMCROA) .999949 CREVIAS(HGCROA) .999949.

, DGSS .999979 -

LOSS OF POWER 4999977 '

LOAD SEQUENC'ER .999933 TOTAL SYSTEM RELIABILITY FOR 384 HOUR MISSION TIME: .999959 a

- p .+ --w v --p w -- , ,, w ~ w--

~

e

0 -

MISSION TIME:432

. ~

COMPONENT RELIABILITY DATA TABLE

=========================================================

FAILURE RELIABILITY SUBSYSTEM COMPONENT RATE PER FOR 432 HRS MILLION HRS INITIATING CHANNEL FOR 12.5 .994614 FBEVAS, CREFAS, CPIAS -

ACTUATING CHANNEL 8 RELAYS 7.17 .

.996907 FOR FBEVAS, CREVAS, CPIAS AC POWER SOURCE 40 .982868 DC POWER SOURCE 4 .998273 AC TO DC POWER SUPPLY 25 .989258 DC TO DC POWER SUPPLY 25 .989258 INITIATING CHANNEL FOR CREVIAS 15.8 .993198 ACTUATING CHANNEL FOR CREVIAS 7.87 .996606 LOP /LS MODULE A. TRIP SECTION 5.77 .99751 B. 2/4 AND OUTPUT 11.8 .994915 DGSS 11.6 .995001 ES'F LOAD SEQUENCER 20.7 .991097 RELIABILITY BY SUBSYSTEM SUBSYSTEM RELIABILITY P'OWER SUPPLY .999655 FBEVAS .999946 CREFAS .999946 CPIAS -

.999956 CREVIAS(SMCROA) .999935 CREVIAS(HGCROA) .999935 DGSS .999973 '

LOSS OF POWER . 999971 LOAD SEQUENCER .999914 TOTAL SYSTEM RELIABILITY FOR 432 HOUR MISSION TIME: .999947

s -

g

\

MISSION TIME!480 COMPONENT RELIABILITY DATA TABLE

=======.:==================================_-==============

FAILURE RELIABILITY SUBSYSTEM COMPONENT RATE PER FOR 480 HRS MILLION HRS INITIATING' CHANNEL FOR 12.5 .994018 FBEVAS, CREFAS, CPIAS ACTUATING CHANNEL 1 RELAYS 7.17 .996564 FOR FBEVAS, CREVAS, CPIAS -

AC POWER SOURCE 40 .980983 DC POWER SOURCE 4 .998082 AC TO DC POWER SUPPLY 25 .988072 DC TO DC POWER SUPPLY 25 .988072 INITIATING CHANNEL FOR CREVIAS 15.8 .992445 ACTUATING CHANNEL FOR CREVIAS 7.87 .996229 LOP /LS MODULE A. TRIP SECTION 5.77 .997234 B. 2/4 AND OUTPUT 11.8 . .994352 DGSS 11.6- . .994447

  • ESF LOAD SEQUENCER 20.7. .990113 RELIABILITY BY SUBSYSTEM SUBSYSTEM RELIABILITY POWER SUPPLY .999575 FBEVAS .999933

, CREFAS .999933 CPIAS .999944 '

CREVIAS(SACROA) .999919 CREVIAS(HGCROA) .999919 DGSS .999967' LOSS OF POWER 999963 -

LOAD SEQUENCER .999893 TOTAL SYSTEM RELIABILITY FOR 480 HOUR MISSION TIME: .999934 4O/47/"O

~~~

  • .l; ,s.)

s MISSION TIME:528

  • COMPONENT RELIAB'ILITY DATA TABLE

===================================================================== 1 FAILURE RELIABILITY l SUBSYSTEM COMPONENT RATE PER FOR 528 HRS MILLION HRS

  • INITIAYINGCHANNELFOR 12.5 .993422 FBEVAS, CREFAS, CPIAS -

ACTUATING CHANNEL 3 RELAYS 7.17 .996221 FOR.FBEVAS, CREVAS, CPIAS AC POWER SOURCE 40 .979101 DC POWER SOURCE 4 .99789 AC TO DC POWER SUPPLY 25 .986887 DC TO DC POWER SUPPLY 25 .986887 INITIATING CHANNEL FOR CREVIAS 15.8 .991692 ACTUATING CHANNEL FOR CREVIAS 7.87 .995853 LOP /LS MODULE A. TRIP SECTION 5 77 .996958 B. 2/4 AND OUTPUT 11.8 .993789 DGSS 11.6 .993894 ESF LOAD SEQUENCER . 50.7 .98913 RELIABILITY BY SUBSYSTEM SUBSYSTEM RELIABILITY P'OWER SUPPLY .999487 FBEVAS .999917 CREFAS .999917 CPIAS .

.999932 CREVIAS(SMCROA) .999901 CREVIAS(HGCROA) .999901 DOSS .999959 .

LOSS OF POWER .999955 LOAD SEQUENCER .99987 TOTAL SYSTEM RELIABILITY FOR 528 HOUR MISSION TIME: .999919 9

h h 1

MISSION TIME:576 COMPONENT RELIABILITY DATA TABLE

====_-============================================== =======_========= -

FAILURE RELIABILITY SUBSYSTEM COMPONENT RATE PER FOR 576 HRS MILLION HRS INITIATING' CHANNEL FOR 12.5 .992826 FBEVAS, CREFAS, CPIAS ACTUATING CHANNEL 1 RELAYS 7.17 .995879 FOR FBEVASr CREVASr CPIAS AC PCWER' SOURCE 40 .977223 DC POWER SOURCE 4 .997699 AC TO DC FOVER SUPPLY 25 .985703 DC TO DC POWER SUPPLY 25 .985703 INITIATING CHANNEL FOR CREVIAS 15.8 .99094 ACTUATING CHANNEL FOR CREVIAS 7.87 .995477 LOP /LS MODULE A. TRIP SECTION 5.77 .996682 B. 2/4 AND OUTPUT 11.8 .993226 DGSS 11.6 .993341 ESF LOAD SEQUENCER 20.7 -.988148 RELIABILITY BY SUBSYSTEM SUBSYS TEM RELIABILITY POWER SUPPLY .999391-FBEVAS .999901 CREFAS .999901 CPIAS -

.999918 CREVIAS(SMCROA) .999881 CREVIAS(HGCROA) .999881~

DGSS .999951 LOSS OF POWER . 999946

  • LOAD SEQUENCER .999843 TOTAL SYSTEM RELIABILITY FOR 576 HOUR MISSION TIME: . 999903 e w - .-, >.

f w t- - 'w

O- g MISSION TIME:624 -

COMP 0NENT RELIABILITY DATA TABLE

================================================_=======_

FAILURE RELIABILITY SUBSYSTEM COMPONENT RATE PER FOR 624 HRS MILLION HRS '

INITIATING CHANNEL FOR 12.5 .99223 FBEVAS, CREFAS, CPIAS -

ACTUATING CHANNEL 1 RELAYS 7.17 .995536 FOR FBEVAS, CREVAS, CPIAS -

AC POWER SOURCE 40 .975349 DC POWER SOURCE 4 .997507 AC TO DC POWER SUPPLY 25 .984521

~

DC TO DC POWER SUPPLY 25 .984521 INITIATING CHANNEL FOR CREVIAS 15.8 .990189 ACTUATING CHANNEL FOR CREVIAS 7.87 .995101 LOP /LS NODULE A. TRIP SECTION 5.77 .996406 B. 2/4 AND OUTPUT 11.8 .992664 DGSS 11.6 .992788 ESF LOAD SEQUENCER . 20.7 .987166

_ _ _ _ _ _ _ _ - - _ - - _ _ _ _ _ _ - - - - _ _ _ _ _ _ - _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ = - --- - __ = - _ _ _ _ _ _ - _ - - _ - -

RELIABILITY BY SUBSYSTEM SUBSYSTEM RELIABILITY POWER SUPPLY .999287 FBEVAS .999882 CREFAS .999882 CPIAS .

.999902 CREVIAS(SMCROA) .999858 CREVIAS(HGCROA) .999858 DGSS .999942 LOSS OF POWER . .999935 LOAD SEQUENCER .999815 TOTAL' SYSTEM RELIABILITY FOR 624 HOUR MISSION TIME: .999884

G Gi s

MISSION TIME *672 COMPONENT RELIABILITY DATA TABLE

=============,================================_-=================_-

FAILURE RELIABILITY

~

SUBSYSTEM COMPONENT RATE PER FOR 672 HRS MILLION HRS INITIATING CHANNEL FOR 12.5 .991635 FBEVAS, CREFAS, CPIAS ACTUATING CHANNEL 1 RELAYS 7.17 .995193 -

FOR FBEVAS, CREVASr.CPIAS

  • AC POWER SOURCE 40 .973478 DC POWER SOURCE 4 .997315 AC TO DC POWER SUPPLY 25 .98334 DC TO DC POWER SUPPLY 25 .98334 INITIATING CHANNEL FOR CREVIAS 15.8 .989438 ACTUATING CHANNEL FOR CREVIAS 7.87 .994725

^

LOP /LS MODULE A. TRIP SECTION 5.77 .99613 B. 2/4 AND OUTPUT 11.8 .992102 DGSS 11.6 .992235 ESF LOAD SEQUENCER 20.7 .986186 RELIABILITY BY SUBSYSTEM SUBSYSTEM RELIABILITY POWER SUPPLY .999175 FBEVAS .999862 CREFAS .999862 CPIAS -

.999885 CREVIAS(SMCROA) .999834

.,.CREVIAS(HGCROA) .999834-

^ DGSS .999933 )

LOSS OF POWER .999924 LOAD SEQUENCER .999784

, TOTAL SYSTEM RELIABILITY FOR 672 HOUR MISSION TIME: .999865

c. o -

a MISSION TIME:720

  • COMP,0NENT RELIABILITY DATA TABLE
================ ============-======== -========= ======

FAILURE RELIABILITY SUBSYSTEM COMPONENT RATE _PER FOR 720 HRS MILLION HRS INITIATING CHANNEL FOR 12.5 .99104 FBEVAS, CREFAS, CPIAS '

ACTUATING CHANNEL 8 RELAYS 7.17 .994851 FOR FBEVAS, CREVAS, CPIAS AC POWER SOURCE 40 .971611 DC POWER SOURCE 4 .997124 AC TO DC POWER SUPPLY 25 .982161 DC TO DC POWER SUPPLY 25 .982161 INITIATING CHANNEL FOR CREVIAS 15.8 .988688 ACTUATING CHANNEL FOR CREVIAS 7.87 .99435 LOP /LS MODULE A. TRIP SECTION 5.77 .995854 B. 2/4 AND OUTPUT 11.8 .99154 DGSS 11.6 .991683 ESF LOAD SEQUENCER .

20.7 .985206 RELIABILITY BY SUBSYSTEM SUBSYSTEM RELIABILITY POWER SUPPLY .999055 FBEVAS .999839 CREFAS .999839 CPIAS -

.999866 l CREVIAS(SMCROA) .999808 CREVIAS(HGCROA)  !

.999808 l l DGSS .999922 LOSS OF POWER . 999912' LOAD SEQUENCER .99975 TOTAL SYSTEM RELIABILITY FOR 720 HOUR MISSION TIME: .999843

, _. ~,

1 MISSION TIME?768 COMPONENT RELIABILITY DATA TABLE

===================__.===============_============================__

FAILURE RELIABILITY SUBSYSTEM. COMPONENT RATE PER FOR 768 HRS MILLION HRS INITIA[ING' CHANNEL FOR 12.5 .990446 FBEVAS, CREFAS, CPIAS ACTUATING CHANNEL 8 RELAYS 7.17 .994509 "

FOR FBEVAS, CREVAS, CPIAS AC POWER SOURCE 40 .969747 DC POWER SOURCE 4 .996933 AC TO DC P'0WER SUPPLY 25 .980983 DC TO DC POWER StIPPLY 25 .980983 INITIATING CHANNEL FOR CPdVIAS 15.8 .987939 ACTUATING CHANNEL FOR CREVIAS 7.87 .993974 LOP /LS MODULE A. TRIP SECTION 5.77 .995578 B. 2/4 AND OUTPUT 11.8 -

.990979 i

DGSS 11.6 .991131

.ESF LOAD SEQUENCER 20.7 .984228 RELIABILITY BY SUBSYSTEM-l SUBSYSTEM RELIABILITY POWER SUPPLY .998927 FBEVAS .999815

. CREFAS .999815 CPIAS . .999845 CREVIAS(SMCROA) .999779 CREVIAS(HGCROA) .999779c  !

DGSS .999911' j LOSS OF POWER .999898 .

LOAD SEQUENCER .999713 TOTAL SYSTEM RELIABILITY FOR 768 HOUR MISSION TIME: . 99982 l

l l

l f

l m <w- ,

+

\

MISSION TIME:816 COMPONENT RELIABILITY DATA TABLE j l

================_========================================

FAILURE RELIABILITY SUBSYSTEM COMPONENT RATE PER .FOR 816 HRS MILLION HRS INITIATING CHANNEL FOR '

12.5 .989852 FBEVAS, CREFAS, CPIAS ACTUATING CHANNEL.1 RELAYS 7.17 .994166 FOR'FBEVAS, CREVAS, CPIAS .

AC POWER SOURCE 40' .967887 DC POWER SOURCE 4 .996741 AC TO DC POWER SUPPLY 25 .979807 DC TO DC POWER SUPPLY 25 .979807 INITIATING CHANNEL FOR CREVIAS 15.8 .98719 ACTUATING CHANNEL FOR CREVIAS 7 87 .993599 LOP /LS MODULE A. TRIP SECTION 5.77 .995303 B. 2/4 AND OUTPUT 11.8 .990417 DGSS 11.6 .990579 ESF LOAD SEQUENCER 20.7 .983251 RELIABILITY BY SUBSYSTEM SUBSYSTEM RELIABILITY POWER SUPPLY .998792 FBEVAS .999789 CREFAS .999789 CPIAS .999823 CREVIAS(SMCROA) .999748 CREVIAS(HGCROA) .999748 DGSS .999899

  • LOSS OF POWER .999884 LOAD SEQUENCER .999674 TOTAL SYSTEM RELIABILITY FOR 816 HOUR MISSION TIME: .999794 l

l l

O C MISSION TIME!864 COMPONENT RELIABILITY DATA TABLE

=================== ===.=======-============ =====_-= ====

FAILURE RELIABILITY SUBSYSTEM COMPONENT RATE PER FOR 864 HRS MILLION HRS INITIATING CHANNEL FOR 12.5 .989258 FBEVAS, CREFAS, CPIAS ACTUATING CHANNEL 8 RELAYS 7.17 .993824 FOR FBEVAS, CREVAS, CPIAS .

AC POWER SOURCE 40 .96603 DC POWER SOURCE 4 .99655 AC TO DC POWER SUPPLY 25 .978632 .

DC TO DC POWER SUPPLY 25 .978632 INITIATING CHANNEL FOR CREVIAS 15.8 .986441 ACTUATING CHANNEL FOR CREVIAS 7.87 .993223 LOP /LS MODULE -

A. TRIP SECTION 5.77 .995027 B. 2/4 AND OUTPUT 11.8 .989857 DGSS 11.6 .990028 -

ESF LOAD SEQUENCER 2'O.7 .982274

, RELIABILITY BY SUBSYSTEM SUBSYSTEM RELIABILITY POWER SUPPLY .998649 FBEVAS .999761-CREFAS .999761 '

CPIAS .9998 CREVIAS(SMCROA) .999714 CREVIAS(HGCROA) .999714 DGSS .999885' LOSS OF POWER .999868 , '.

LOAD SEGUENCER .999632 TOTAL SYSTEM RELIABILITY FOR 864 HOUR MISSION TIME: .999767 12/23/78

f.D ,

pn

  • \;p \w,

\

MISSION TIME!912 COMPONENT RELIABILITY DATA TABLE

===================================================_-=====

FAILURE RELIABILITY SUBSYSTEM COMPONENT RATE PER FOR 912 HRS MILLION HRS INITIATING CHANNEL FOR 12.5 .988665 FBEVAS, CREFAS, CPIAS -

ACTUATING CHANNEL 8 RELAYS 7.17 .993482 FOR.FBEVAS, CREVAS, CPIAS AC POWER SOURCE 40 .964177 DC POWER SOURCE 4 .996359 AC TO DC POWER SUPPLY 25 .977458 DC TO DC POWER SUPPLY 25 .977458 INITIATING CHANNEL FOR CREVIAS 15.8 .985694 ACTUATING CHANNEL FOR CREVIAS 7.87 .992848 LOP /LS MODULE A. TRIP SECTION 5.77 .994752 B. 2/4 AND OUTPUT 11.8 .989296 DGSS 11.6 .989477 ESF LOAD SEQUENCER 20.7 .981299 RELIABILITY BY SUBSYSTEM SUBSYSTEM RELIABILITY POWER SUPPLY .998498 FBEVAS .999731 CREFAS .999731 CPIAS .

.999774 CREVIAS(SMCROA) .999679 CREVIAS(HGCROA) .999679 DGSS .999871 LOSS OF POWER .999851 LOAD SEQUENCER .999587 TOTAL SYSTEM RELIABILITY FOR 912 HOUR MISSION TIME: .999738

1.1 .N i

MISSION TIME 960 COMPONENT RELIABILITY DATA TABLE

=========================================================

FAILURE RELIABILITY SUBSYSTEM' COMPONENT RATE PER FOR 960 HRS MILLION HRS INITIATING CHANNEL FOR 12.5 .988072 FBEVAS, CREFAS, CPIAS ACTUATING CHANNEL 1 RELAYS 7.17 '

.99314 FOR FBEVAS, CREVAS, CPIAS AC POWER SOURCE 40 .962328 DC POWER SOURCE 4 .996167 AC TO DC POWER SUPPLY 25 .976286 DC TO DC POWER SUPPLY 25 .976286 INITIATING CHANNEL FOR CREVIAS 15.8 .984947 ACTUATING CHANNEL FOR CREVIAS 7.87 .992473 LOP /LS MODULE A. TRIP SECTION 5.77 .994476 B. 2/4 AND OUTPUT 11.8 .988736 DGSS 11.6 .988926

'ESF L'OAD SEQUENCER 20.7 .980324 RELIABILITY BY SUBSYSTEM

.= -- --------_

SUBSYSTEM RELIABILITY POWER SUPPLY .998339-FBEVAS .999699 CREFAS .999699 CPIAS .999746 CREVIAS(SMCROA) .99964 CREVIAS(HGCROA) .99964 DGSS .999856 ,

LOSS OF POWER '999833 LOAD SEQUENCER .999539 "I-TOTAL SYSTEM RELIABILITY FOR 960 HOUR MISSION TIME: .999707

e) .

4 l

l l

l

.r' APPENDIX C 1

k . .

s:'-

l

-r COMPUTER RELIABILITY COMPUTATION FOR

~

PALO VERDE NUCLEAR GENERATING STATION BALANCE OF PLANT ENGINEERED SAFETY FEATURES ACTUATION SYSTEM BECHTEL JOB 10407 PURCHASE ORDER 10407-13-JM-104 DECEMB'ER 12,1978 g PROJECT NO. 2192 GENERAL ATOMIC COMPANY ELECTRONIC SYSTEMS DIVISION P O BOX 81608 SAN DIEGOr CALIFORNIA 92138

e

~

s s

MISSION TIME:0 COMPONENT RELIABILITY DATA TABLE

=========================================================

FAILURE RELIABILITY SUBSYSTEM. COMPONENT RATE PER FOR O HRS MILLION HRS

_______________________________________________________4_____________

INITIA[INGCHANNELFOR 12.5 1 FBEVAS, CREFAS, CPIAS ACTUATING CHANNEL 1 RELAYS 7.17 1 FOR FBEVAS, CREVAS, CPIAS AC POWER SOURCE 40 1 DC POWER SOURCE 4 1 AC TO DC POWER SUPPLY 25 1

~

DC TO DC POWER SUPPLY 25 1 INITIATING CHANNEL FOR CREVIAS 15.8 1 ACTUATING CHANNEL FOR CREVIAS 7.87 1 LOP /LS MODULE A. TRIP SECTION 5.77 1 B. 2/4 AND OUTPUT 11.8 -

1 DGSS 11.6 -

1

. ESF LOAD SEQUENCER 20 7 1 RELIABILITY BY SUBSYSTEM SUBSYSTEM RELIABILITY POWER SUPPLY 1 FBEVAS 1 CREFAS 1 CPIAS .

1, l

CREVIAS(SMCROA) 1

,. CREVIAS(HGCROA) 1 DGSS 1 LOSS OF POWER 1~

l LOAD SEQUENCER 1 TOTAL SYSTEM RELIABILITY FOR O HOUR MISSION' TINE: 1 l l

=

1 .

e. e  ;

1 MISSION TIME:4.98047E-2 COMPONENT RELIABILITY DATA TABLE

=========================================================

FAILURE RELIABILITY SUBSYSTEM COMPONENT RATE PER FOR 5.00000E-02 HRS MILLION HRS .

INITIATING CHANNEL FOR 12.5 .999999 FBEVAS, CREFAS, CPIAS .

ACTUATING CHANNEL & RELAYS 7.17 1 FOR FBEVAS, CREVAS, CPIAS AC POWER SOURCE 40 .999998 DC POWER SOURCE 4 1 AC TO DC POWER SUPPLY 25 .999999 DC TO DC POWER SUPPLY 25 .999999 INITIATING CHANNEL FOR.CREVIAS 15.8 .999999 ACTUATING CHANNEL FOR CREVIAS 7.87 1 LOP /LS MODULE A. TRIP SECTION 5.77 1 B. 2/4 AND OUTPUT 11.8 .999999 DGSS 11.6 .999999 ESF LOAD SEQUENCER 2'O.7 .999999 RELIABILITY BY SUBSYSTEM SUBSYSTEM RELIABILITY POWER SUPPLY 1 FBEVAS 1 CREFAS 1 CPIAS 1 CREVIAS(SHCROA) 1 CREVIAS(HGCROA) 1 DGSS 1 LOSS OF POWER 1 LOAD SEQUENCER 1 -

TOTAL SYSTEM RELIABILITY FOR 5.00000E-02 HOUR MISSION TIME: 1

, m ,n n ! m

, g g .

MISSION TIME 9.96094E-1, COMP 0NENT RELIABILITY DATA TABLE

=========================================================

FAILURE RELIABILITY SUBSYSTEM COMPONENT RATE PER FOR .1 HRS MILLION HRS

__________________g__________________________________________________

INITIATING CHANNEL FOR 12.5 .999999 FBEVAS, CREFAS, CPIAS ACTUATING CHANNEL 1 RELAYS 7 17 .999999 FOR FBEVAS, CREVAS, CPIAS AC POWER' SOURCE 40 .999996 DC POWER SOURCE , 4 1 AC TO DC POWER SUPPLY 25 -.999997 DC TO DC POWER SUPPLY 25 .999997 INITIATINO CHANNEL FOR CREVIAS 15.8 .999998 ACTUATING CHANNEL FOR CREVIAS 7.87 .999999 LDP/LS MODULE A. TRIP SECTION 5 77 .999999 B. 2/4 AND OUTPUT 11.8 .999999 DGSS 11.6 .999999 ESF LOAD SEQUENCER 20 7 .999998 RELIABILITY BY SUBSYSTEM SUBSYSTEM RELIABILITY POWER SUPPLY 1 FBEVAS 1 CREFAS 1 CPIAS . 1 CREVIAS(SMCROA) 1' CREVIAS(HGCROA) 1 .i DGSS 1 '

LOSS OF POWER' .1 -

LOAD SEQUENCER 1 TOTAL SYSTEM RELIABILITY FOR .1 HOUR MISSION; TIME: 1 l . . . . , _ -

O-O s

MISSION TIME!.199219 COMPONENT RELIABILITY DATA TABLE

=========================================================

FAILURE RELIABILITY SUBSYSTEM COMPONENT RATE PER FOR .2 HRS MILLION HRS -

1 INITIATING CHANNEL FOR 12.5 .999997 l FBEVAS, CREFASr CPCAS . l l

ACTUATING CHANNEL & RELAYS 7.17 .999999 FOR.FBEVASr CREVAS, CPIAS -

AC POWER SOURCE 40 .999992 DC POWER SOURCE 4 .999999 AC TO DC POWER SUPPLY 25 .999995 DC TO DC POWER SUPP'LY 25 .999995 INITIATING CHANNEL FOR CREVIAS 15.8 .999997 ACTUATING CHANNEL FOR CREVIAS 7.87 .999998 LOP /LS MODULE A. TRIP SECTION 5.77 .999999 B. 2/4 AND OUTPUT 11.8 .999998 DGSS 11.6 .999998 ESF LOAD SEOUENCER , 20.7 .999996 RELIABILITY BY SUBSYSTEM SUBSYSTEM RELIABILITY POWER SUPPLY 1 FBEVAS 1 CREFAS 1 CPIAS , 1 CREVIAS(SNCROA) 1 CREVIAS(HGCROA) .1 DGSS 1 .

LOSS OF POWER 1 LOAD SEOUENCER 1 TOTAL SYSTEM RELIABILITY FOR .2 HOUR MISSION TIME: 1

& O s

MISSION TIME:.298828 COMPONENT RELIABILITY DATA TABLE

=====================r,===========================n=======

FAILURE ' RELIABILITY SUBSYSTEM COMPONENT RATE PER FOR .3 HRS MILLION HRS INITIATING' CHANNEL FOR 12.5 .999996 FBEVAS, CREFAS, CPIAS ACTUATING CHANNEL 1 RELAYS 7.17 .999998 FOR FBEVAS, CREVAS, CPIAS -

AC POWER SOURCE 40 .999988 DC POWER SOURCE ~ 4 .999999 AC TO DC POWER SUPPLY 25 .999992

~

DC TO DC POWER SUPPLY 25 .999992 INITIATING CHANNEL FOR CREVIAS 15.8 .999995 i

ACTUATING CHANNEL FOR CREVIAS 7.87 .999998 LOP /LS MODULE A. TRIP SECTION 3.77 .999998 B. 2/4 AND OUTPUT 11.8 .999996 DGSS 11.6 .999997 ESF LOAD SEQUENCER 2O.7 .999994 RELIABILITY BY SUBSYSTEM SUBSYSTEM RELIABILITY POWER SUPPLY 1 FBEVAS 1 CREFAS 1 CPIAS . 1 CREVIAS(SNCROA) l' CREVIAS(HGCROA) 1 DGSS [ .-

1 $; ( ,

, LOSS OF POWER .1 A .R - -

LOAD SEQUENCER 1  ;?

TOTAL SYSTEM RELIABILITY FOR .3 HOUR MISSION TIME' 1 4M fyM fmM

A-r MISSION TIME .398438 4

COMPONENT RELIABILITY' DATA TABLE l

u======================_==============================_========_-=====

FAILURE RELIABILITY SUBSYSTEM COMPONENT RATE PER FOR .4 HRS MILLION HRS '

INITIATING CHANNEL FOR 12.5 .999995 FBEVAS, CREFAS, CPIAS -

ACTUATING CHANNEL 8 RELAYS 7.17 . 999997 '

FOR.FBEVAS, CREVAS, CPIAS i -

AC POWER SOURCE 40 .999984 DC POWER SOURCE 4 . 999998 AC TO DC POWER SUPPLY 25

~

.9 999

~

i DC TO DC POWER SUPPLY 25 .99999 INITIATING CHANNEL FOR-CREVIAS 15.8 .999994 .

ACTUATING CHANNEL FOR CREVIAS 7.87 .999997

~ ~

LOP /LS MODULE A. TRIP SECTION 5.77 .999998~

B. 2/4 AND OUTPUT 11 8 .999995 DGSS 11.6 .999995 ESF LOAD SEQUENCER- . 20.7 .999992 i

RELIABILITY BY SUBSYSTEM '

SUBSYSTEM RELIABILITY POWER SUPPLY 1 -

FBEVAS -

1

, .' CREFAS 1 S?.eCPIAS 1 "Mi CREVIAS(SACROA) 1~

s. '. . .v 4 CREVIAS(HGCROA) 1

~

, , ,, DGSS 1

- LOSS OF POWER 1:

l LOAD-SEQUENCER 1 N :d f' * .

t

~ TOTAL SYSTEM RELIABILITY FOR .4 HOUR MISSION TIME: .1 s

l j d 6% t r M B *'9  %-

g ,e n, ww ,-,--,s n,, ...,+>n---- ,, ~.N,.--, g-.- ,,--m - - - . - - r-,

.,e,r.,

e e .

MISSION TIME 2.5 COMPONENT RELIABILITY DATA TABLE

.e 1

===================================================================== i

,' FAILURE RELIABILITY SUBSYSTEM COMPONENT RATE PER '

FOR .5 HRS MILLION HRS -

INITIATING' CHANNEL FOR 12.5 .999994 FBEVAS, CREFAS, CPIAS ACTUATING CHANNEL 1 RELAYS 7.17 .999996 FOR FBEVAS, CREVASr CPIAS AC POWER SOURCE 40- .99998 DC POWER SOURCE 4 .999998 AC TO DC POWER SUPPLY 25 .999987 -

\ .

DC TO DC POWER SUPPLY 25 .999987 INI IATING CHANNEL FOR CREVIAS 15.8 .999992 ACTUATING, CHANNEL FOR CREVIAS 7.87 .999996 LOP /LS MODULE A. TRIP SECTION 5.77 .999997 B. 2/4 AND OUTPUT 11.8 .999974 DGSS 11.6 .999994 ESF LOAD SEQUENCER 2O.7 .99999 RELIABILITY BY SUBSYSTEM SUBSYSTEM RELIABILITY POWER SUPPLY 1 j FBEUAS -

1 CREFAS 1

/- CPIAS , 1 CREVIAS(SMCROA) 1'

.', CREVIAS(HGCROA) 1 ..,- .. . '-

DGSS 1 ifigg

, LOSS OF POWER .1 -

13 . ;, .

LOAD SEQUENCER -

1 f-TOTAL SYSTEM RELIABILITY FOR .5 HOUR MISSION TIME: 1 e en s. s== p uso ce s =

l3

! l' a.. __ _

~

()

.Y

. \

s .

y .

MISSION TIME!.597656

.. COMPONENT RELIABILITY DATA TABLE ]

+

  • i

================u====================n==================

F.4ILURE RELIABILITY SUBSYSTEM COMPONENT RATE PER FOR .6- HRS MILLIGN HRS -

(

s INITIATING CHANNEL FOR - 12.5 .999992 FBEVAS, CREFAS, CPIAS .

ACTUATING CHANNEL 1 RELAYS 7.17 .999996 FOR.FBEVAS, CREVAS, CPIAS l

AC POWER SOURCE 40 .999976 DC POWER SOURCE 4 .999998 AC TO DC POWER SUPPLY 25 .999935 DC TO DC POWER SUPPLY. 25 .999985 INITIATING CHANNEL FOR-CREVIAS 15.8 .99999 1 ,

ACTUATING CHANNEL FOR CREVIAS 7 87 .999995 LOP /LS MODULE '

A. TRIP SECTION 5.77 , .999997 B. 2/4 AND OUTPUT 11.8 . 999993 DGSS 11.6 999993 U ESF LOAD SEQUENCER 20.7 .999988

_____________________________________________________________________o= ,

RELIABILITY BY SUBSYSTEM -

SUBSYSTEM RELIABILITY ..

s' . , ,

POWER SUPPLY ~ 1 FBEVAS 1

.-- CREFAS 1 -

2 0 CPIAS 1 '

CREVIAS(S$CROA) 1 .

.. . CREVIAS(HGCROA) 1 is.'.~~.

,1 ' ',DGSS, 1 . - I LDSS OF. POWER 1 $ <:,. gQ

. gq ,,,g . -.

LOpD SEQUENCER '

'f .

1

.. Un' . 'i a e l' l TOTAL SYSTEM RELIABILITY FOR .6 HOUR-MISSION TIME! 1- ,

l

,s e'f' 4 R $4R f%F '

7 "w ,

_,d , j ,e D'

< . ~

~

O s

MISSION TIME!.796875 COMP 0NENT RELIABILITY DATA TABLE

=========================================================

FAILURE . RELIABILITY

  • SUBSYSTEM COMPONENT RATE PER ,FOR .8 HRS MILLION HRS INITIATING' CHANNEL FOR 12.5 .99999 FBEVAS, CREFAS, CPIAS ACTUATING CHANNEL 8 RELAYS 7.17 +999994 FOR FBEVAS, CREVAS, CPIAS -

AC POWER SOURCE 40 .999968 DC POWER SOURCE 4 .999997 AC TO DC POWER SUPPLY 25 .99998

~

DC TO DC POWER SUPPLY 25 .99998 INITIATING CHANNEL FOR CREVIAS 15.8 .999987' ACTUATING CHANNEL FOR CREVIAS 7.87 .999994 LOP /LS MODULE A. TRIP SECTION 5.77 .999995 B. 2/4 AND OUTPUT 11.8 -

.999991 DGSS 11.6 .999991 ESF LOAD SEQUENCER 20.7 .999983 RELIABILITY BY SUBSYSTEM.

SUBSYSTEM RELIABILITY POWER SUPPLY 1  !

FBEVAS 1 l

CREFAS 1

.s. lI

. ' - ; .i CPIAS .

1 l CREVIAS(SMCROA) 1- -

M. CREVIAS(HGCROA) 1 '

..' r

.  :: DGSS 1 'k u ~

LOSS OF POWER 1 7* .? ;F.

LOAD SEQUENCER 1 TOTAL SYSTEM RELIABILITY FOR .8 HOUR MISSION, TIME: 1 se ,e e e*,-

O. g 4

MISSION TIME:1 -

COMPONENT RELIABILITY DATA TABLE

================e========_===============================

FAILURE RELIABILITY SUBSYSTEM COMPONENT RATE PER FOR 1 HRS MILLION HRS INITIATING CHANNEL FOR 12.5 .999987 FBEVAS, CREFAS, CPIAS -

ACTUATING CHANNEL 8 RELAYS 7.17 .999993 FOR FBEVAS, CREVAS, CPIAS AC POWER SOURCE 40 .99996 DC POWER SOURCE 4 .999996 AC TO DC POWER SUPPLY 25 .999975 DC TO DC POWER SUPP'LY 25 .999975 INITIATING CHANNEL FOR CREVIAS 15.8 .999984 ACTUATING CHANNEL FOR CREVIAS 7.87 .999992 LOP /LS MODULE A. TRIP SECTION 5.77 .999994 B. 2/4 AND OUTPUT 11.8 .999988 DGSS 11.6 .999988 ESF LOAD SEGUENCER . 20.7 .999979 RELIABILITY BY SUBSYSTEM SUBSYSTEM RELIABILITY POWER SUPPLY 1 FBEVAS 1 CREFAS 1 CPIAS .

1 CREVIAS(SMCROA) 1 CREVIAS(HGCROA) 1 DGSS 1 LOSS OF POWER 1 LOAD SEQUENCER 1 TOTAL SYSTEM RELIABILITY FOR 1 HOUR MISSION TIME: 1

O R. W~

. . O,.

e 9

s s I p

q e

.' c c

u s s S s t

s e s n e e e c c s c c s u u s S

4 i

3 S 5 s e e ev D r

c c y z r c g c mu t

n xe e e c u as u S

u n c c c uen at u n

S r wr u n C

n D

/e S

}r Ok

/g Bu q uo <

qu c c qM eF C rc S

e S A% D% rS u

i e

n u .

r E e e

u e

r u

t u.

F u n n ha fn a r e

. - r t w.

u a

~

F 9 8

~

.v

$ff./A B/L 1TY $ALCUlA T/o MS '

(  :

  • WELIABIL / TY . 0f OCQ.UEMCER 2 = Pa (3ca.ueacee Mooute ).*

P.s (Stauescre Fein vs)

  • _

[ Ps (AC/DC Pocaff SUPPLY +

(/ - P.s (AC/DC Rwre Sumy)]*

Ps (DC/DC hwce Suppiy)) - ,

Es

  • Proanentry or Succcss

= g At X

  • Fan une Pnre \

k * .999998 9 7 .Derremxes ay -

M/L-//DSM- 2/7A I (1 -d = /. 03 x /0 ~ '

L = Etnests Tine

.Durius /?ura 7r~sr Fog 2 gesuungxr res ws /owir-R = . 9 9 99 99.9.9 999 89 4 ,

(/ - R) * /. 0 6 x fo ~

- 4

, j; y ~. .%.

W (s j s l AUTO TEST FUNCTION OPERATIONAL DESCRIPTION

1. Scope The ESF load sequencer for each logic train contains the necessary hardware and associated software programs stored in read only memory to determine that each functional channel within that train will respond to field initiated input contact action and that the ESF load sequencer in the opposite train is operative.

A. The Auto Test Function Does Not Check: ,

1. The Cross Logic Train Actuation Signal Operation -

Response times dictated by specified signal filtering bandpass limit of 30Hz do not allow test pulses to propogate to the opposite train.

2. Actual Actuation Relay Contact Transfer -

Only the relay drive current response is monitored.

3. Manually Initiated Actuation Inputs
2. Module Selection and Test Scheme A. Address Select and Test' Enable Bus Each module has an address code associated with its position in the system (eg. FBEVAS-01, CREFAS-02, CPIAS-03, LOP /LG-04, '

CRVIAS-05, DOSS-06) which is set within the module via a mini-dip switch unit. As the module address select signal bus (4 lines) is strobed with each successive code, the selected module will admit test pulses (10 msee wide; 250 msee apart; 4 per test) which propogate through the logic and are sensed in such a way as to prepare a. return signal to be sent back to the auto test function contained within the ESF load sequencer for interpretation.

The LOP /LS module requires an additional four lines (Test Enable) to interpret the module response .to all possible two of four pairs. ,

t j

l i '

i l .

t . o l

,$a..s 1 O- G

)

B. Module Test Response Return Interpretation ..  !

As the modules are successively selected, the auto test features within the sequencer examines the test returns and active signals received from the modulas and looks for a particular pattern l based upon the system configuration and within the time frame of the test. The auto test feature is then able to determine if the module has passed or failed.a test or if a field related (actual input) has been received. In the case of a failed test or an actual input, the auto test' feature will cease operation.

C. Test Failure Indication .

Each module contains a test indicator lamp that illuminates in a

  • steady state while that module is under test. As the auto test feature strobes each module the test indication will appear to

" walk" across the face of the bin assembly containing the modules. If the auto test feature determines an erroneous response, it will cause the test indicator on the module where

the failure was detected to flash. The error may or may not be within that module dependent upon the system configuration and j

the position of the module in the test order (eg. if the FBEVAS j

module correctly responded to the test, yet a failure in the CREFAS module failed to provide its required automatic output -

the auto test feature would flash the error indicator in the FBEVAS module) . Further. manual tests might be required to isolate the fault. When the auto test feature terminates testing under either an error detection or receipt of an actual input,

' the required auto test terminate (fail) annunciator contacts will transfer to the alarm state. During auto test operation the

" auto test on" annunciator contacts are transferred.

D. Test Success Indication -

As the modules are strobed into test by the module select bus (solid test indicator illumination), the test pulses propogating through the. module actuation logic will eause the associated -

indicators to " flicker". As the module successfully completes its test, the next module in line is strobed and its actuation associated indicators " flicker", until all modules are tested including the ESF load sequencer itself.

u 9

e

< , , _ ,. , . , , _ . , .__ _ . _ . ._

Retrieved from "https://kanterella.com/w/index.php?title=ML20083K094&oldid=2746476"