ML21305A148

6 to Updated Final Safety Analysis Report, Figure 7.3-50, Sheet 1 of 3, Drawing 445650, Revision 7, Sheet 1 of 2, Separation & Color Code Instrumentation & Control Engineered Safety Features

ML21305A148
Person / Time
Site:	Diablo Canyon
Issue date:	10/11/2021
From:	Pacific Gas & Electric Co
To:	Office of Nuclear Reactor Regulation
Shared Package
ML21306A142	List: DCL-21-074, 6 to Updated Final Safety Analysis Report, Figure 3.2-4, Sheet 1 of 16, Drawing 102004-3, Turbine Steam Supply System ML21305A089 ML21305A090 ML21305A091 ML21305A092 ML21305A093 ML21305A094 ML21305A095 ML21305A096 ML21305A097 ML21305A098 ML21305A099 ML21305A101 ML21305A102 ML21305A103 ML21305A104 ML21305A105 ML21305A106 ML21305A112 ML21305A113 ML21305A114 ML21305A115 ML21305A116 ML21305A117 ML21305A118 ML21305A119 ML21305A120 ML21305A121 ML21305A122 ML21305A123 ML21305A124 ML21305A125 ML21305A126 ML21305A127 ML21305A128 ML21305A129 ML21305A130 ML21305A131 ML21305A132 ML21305A133 ML21305A134 ML21305A135 ML21305A136 ML21305A137 ML21305A138 ML21305A139 ML21305A140 ML21305A141 ML21305A142 ML21305A143 ... further results
References
DCL-21-074
Download: ML21305A148 (1)

Text

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D ANALOG. INPUTS CHANNEL 1 SENSORS TRANSIJJCERS CHANNEL I NIS SENSORS CHANl'EL 11 SENSORS TRANS[lJCERS I

2 I

3 I

-J 4 WAY SEPARAT.ICJ-1 SEE t<<JTE 5 1

- SSPS.11-f'UTS 8 JIAY SEPARATICJ-1 See Notes 1,2 & 3 t -

SEE NOTE 4 PflOTECTION SET I I

I Red

!Channel I Protect,on 1-------------,IJl'l I

I Outputs Inputs I N0nPr0t-:---=1Red I Outpulssee Note 2 Red Red NI S RACK CHANNEL I Red <Tria*l I Protect ion

..w I Outputs "1 Inputs I Red Red I N0nPro1-:--=3 Red

[Outputs... _

See Note 2 DIRECT INPUTS CIU Train A 1-------

Train B

-=iH Red l,

PROTECTION SET.II I

/

While

'Channel I Protect ion II JI I Outputs White White Rell While Blue Yellow 4

INPUTS CHANfil.

I CHANNEL 1.1 CHANNEL.

111 CHANNEL IV I

5___ I 6

I 1

I s

I 9

I 10 8.WAY 'SEPARAT,ION OUTPUT EV. ICES SOUO STATE PROTECTION SYSTEM TRAIN A k--

SEE-NOTE 10

• 1 SEE NOTES 9 & 11 I

~

SEE REF.I J

LOG I C ISCLATORS T-r, I I I

I I I J _i___l OUTPUTS TES T VITAL BUS F 1

Train A Orange /Brown Orange/Brown Ac

\\

AC Power

-I tu~t.,on, 4.I6KV Bus F I Orange/Brown

)

-i 11--1.1---___:_ ___ _,.

Dav.oces I (F)

I 480V Bus IF I

ciF) 1-- ----: - -I OC Power Troon _B I25V DC Bus Actuotoon l 11 (21).

I Oronoe/6reen

.. 1 Dev.ices

-11 I I

Purple/Brown

-ii Purple/Brown f rl I

l

-II I Gray/Brown 4 1 I Gray/Brown f I I l Block/Brown VITAL BUSH

-II I I

Black/Brown f I I I l

-ii I

Terminol Train_A I AC Power Actuot,oon l 4.16KV Bus H Pu rp I e/Brown Device&

(N) 1 480V Bus,IH I

~~

N O T E S I, For listing of,Inputs & Outputs See Tobie 011._'__5J-j!S1':T,t-l0.2.

2.

Non Protect.ive klol0ys to procass control, or bistm:>le outputs to oux.

.:~,

relay racks and annunciator from protection sets &-NIS racks ore -isolated with isolators.

These ~ ignals ore not needed for -Env. Sof. features actuution out provide required indication and alarms.

The bistable and di reef contact,inputs -normally maintain the,input signal

,in on energ i zed (Untr.i pped) condition.

Deenergizing or loss of this.input signal will create a tr i p s. i gnal to the logic train.

See table for logic form which actuates o safeguard output.

I:

'-.A /

4.

The.input Ni res for the sane channel to Trains A & B fr0111 prot.ect.ion outputs 110y shore the sae raceway system.

Simi lor for the di reef,inputs for the some channel except for the reactor coolant pump breaker tr.ipped signal for Train B,input.

This signal wi 11 run.in a separate raceway sy$tem.

5.

The analog,inputs to the protect.ion sets are routed,in a separate raceway system from the protection set outputs.

Each channel hos,its own system.

6.

The direct logic,inputs ore the manual tr.ip. actuation. reset,onci black

~igncls fran the 111ain control board.

7.

The oynchronizing cables hove sol.id state,isolators located.in each train.

B.

Reactor tr.ip signal -

each train 1110intains two undervoltage coils. one each

,in two ACB's, in an energized cond ition, A reactor tr.ip signal will

~eenergize the undefvol toge coi Is 1ri.ppi~g the reactor tr.ip breakers.

9.

The outputs from Train A fflDinly operate functions associated with Bus F and Train B with Bus G.

Bus H,is shared between the two trains.

The train association for Bus H depends on the bus associot.ion of the redundant -dev,ice.

That,is,,if the redundant device,is an Bu5 G, than Train A will be used for Bus H.

Si11ilar.if the r:edundant dev,ice,is on Bus F, than Train B wil I be used for Bus H.

Some functions on Bus H receive signal$

D ci

~

I Inputs I NonProl.

~White Bo* -

- ---t----t I

j OJ DC Power from both Trains A & B.

See loble on...&HEET. 2.

-:- ~

C B

A

\\

CHN-INEL 11 NIS SENSORS CHN-INEL I I I SENSORS

'IRANSOUCERS CHANNEL 111 NIS SENSORS CHA~EL IV SENSORS TRANSIXJCERS CHANNEL IV NIS SENSORS l'fh_i t_e (Trio,)

)

Blue Blue (Tr iox)

I Outputs See Note -2 NI S RACK CHANNEL I I i Proleclion~ile I Outputs White Inputs INon Prat

• See Note 2

! Outputs While DIRECT INPUTS CH. I I Train A

-ll I White I

I Train B

-l l--f-'W:;_h:,:i:;_t,:::e ___.\\....._l __

PROTECTION SET.I.I I Blue I Protect ion Obgnoel I outputs Ill I - - -=1 Blu:

Inputs I Non Pro!.

See Note 2 I Outputs Blue NIS RACK CHANNEL.I I.I I

I Protect oon Blue r1.Inputs I Output~

I Non Prat.

I Outo=-u~16-__ _

DIRECT INPUTS Oi I.I I Blue Train A

-jt-t-----~---~

t----- - --

Troin B

--4i]

Blue l

l PROTECTION SET IV I

Yellow Yellow Channel I Protect,on I

I IV I Outputs Yellow (Trio*)

Inputs ~on Prot :---

___J Out uts 2

NI S RACK CHANNEL. I V

. 1Protecl ion Yellow j.Outputs Yellow INonProt.-

Yellow See Note 2 D I RECT INPUTS Train A

-,: ~ Yellow j

-l Yellow Train B f--- ---- ---

DIRECT LOGIC 11-f'UTS --<'

(Manuol Signals)

See Note 6 ilrown (Shld REACTOR TRIP BKR.

Orange (Shld)

Orange (Shld)

Breaker Au,. Sw *.

BypaSs-Bkf. ~ux -:-s.-: -

Block (See Note 12)

Train B I I25v QC BUS J

Actuation!

1.3, ('l3)

Pur le/Green Devices 1

I

=

'!!1§1~

".. z Block CONTROL BOAR I

I DDU.tll'LEXER I Slack

'°[STATUS LIGHtS I MAIN I

r AN-IL.NC I ATOR Q O CD z z.,

V)

V)

CNT. RAC. MONITOR Train A (Shld)::::

I--- -- -

~

Train B

--4 (Shld).,i DIRECT LOGIC

'INPUTS (Manual Si~nal ;1*

See Note 6 C:

~

a..

'al

.Green (Shld).

V) V)

UJ

~ -'

'O <II

~ (.J

.:< u ail~

~ a, Block

3>_...

Red Jlhi le Blue Yellow OlANNEL I

OlANNEL II OiANNEL 111 CHANNEL IV INPUTS I

I I

I I

I. I L-1_J ISOLATORS L O G IC MAIN CONT.BO-*

I CCM'UTER DDU. TI P1..EXER I COlf'UTER REACTOR TRIP BKR.

Gray (Shld)

Under,oltage Coi I (See Note B)

Gray (Shld)

• k-,- ::- -

ru ~

"~

.!!!.*~

~

L'.:!! Bypass Bkr.Aux.Sw.

4 Orange/Green

-i I I Orange/Green

-II I I

Purple/Green

-II Purple/Green f V.ITAL BUS G l

Train A I AC Power l

j Gray/Brown I Acl<.oat.ior, 4.I6KV B<Js G 0e.,, cesl'

{ H) 480V Bus.JG

- --l DC PoJ~l-l)

Train B I j

Gray/Green I Actuation r

Dev.ices I I

I I25V DC BUS 12 NON VITAL BUSES

- II I I

Gray/Green

- I I Grey/Green J

)

Train Al AC Power Actuation I2KV Bus D,E Block/Brown Dev.ices l4.I6KV Bus D I

I E

I

~~

[]}

Terminal

_ __ j QC Power Box (See Note 12).

Troin BI Non \\:i lol I

Actual ion I25V DC 11 (21' Black/Green Block/Green Oe"ices 17~

12 (22

~

I

~~

-I Block/Green I

OUTPUTS T E S T SOLID STATE PROTECTION SYSTEM TRAIN B

~J--~~~;!l~~~~~. ~

--!~U!lto-*+':E~":':!~-i NO< PROTECTIIJ-j SENSORS TRANSllJCERS Black NON REllltlOANT PROCESS COIITRCl. RACKS f4l T4 r,l(r; SUBiCCT DR" ** r.: *. ~-:-1.E UNIT No LJ f's(!} { -~ lo~ plRI jc!DI IIW!s1[.;"~! t-~w\\1;1 !fill 15 I~

l.:,-41 42 PROJlCT LCCAllO~ __

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INSi.~1 1(\\1 10.'t Jf>E

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5l oi*,:~ :,;:

r.,,r

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t*: J l,: i!.C COO!

1:0.: :S CAOU Li~ LG]

51 55 5~

57 59 60 VR.\\l'IWG SOlJi;CE

. Qj 70

10.

Separate routes are maintained fro,n each Train & eoch Bus Sect,ion for a total of eight paths.

Output wires from Train A do not run with output wires from T~oin B of similar color. Second Color is marker color.

11.

Al I.isolot.ion valves inside the containment ore aperated from Train A s i gnals and the redundant isolation valve outside the containment frm Train 8 12.

,If a series connect.ion between two normally closed output contacts,i s used a terminal box.is used between the two trains to Maintain train &eparat.ion.

13.

Reactor protect ion wire color designot.ions

,Input Chonnel.I N

,1,1 Control &.Instr.

Wire Colors

.Instr. AC Wire Colors Orange Gray Purple

.I.II

,IV Train A Train B Red While

.Blue Yel lo*

Brown Green Block (\\<ital)

14.

V.ital bus wire colors AC Bus F

G H

DC Bus 11 ( 21) 12 (22) 13(23)

Wi re_Colors Orange Gray Purple t5.

Output circuits from each train for nlfuol ly redundant electrical power buses (F.G,& H) hove separate relay contacts but ore not necessar,i ly on separate relays. However, mutually redundant devices ore actuated,independently by sepo rate t rairis.

16.

Outputs from the test cabinet ere for the Engineered Safety Features which con not be fully actuated durmg normal plant operation. The E. S.F. signal and the continuity test ci rcui I for these devices ore combined cs an output from the test cabinet, for circuits of the scmie vitality. Continuity test will ver i fy aperotion of the output relay and also check continuity of the actuator circuit.

Only one SSPS train end only one actuation relay con be tested ct a time.

- Functions tested simultaneously* are preformed ' by one relay but with separate contocts. For Coni>lete testing procedure see PG&E Co.Rec.No.66323I sh.7fi.

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18.

lnterlockc1rcuit to block s i multaneous testing of both tr~Circu i f.;7un in separate condu i ts REFERENCES I *. 'Separation & Color Code for Instr.& Contro l Engineered Solely Features Sh. 2 2,

3.

,. t1:.

5, 11.E.Corp. Sol id State Protect ion System

"*F".Corp. Funct.ion Diagrams 6L0CK DIAGRAM 5~f'Ai':ATION Of CIRCUIT':>

Au.x.. Ril.AY ROCt<5.

Block Diagram Seporat-ion cf Circuits Safeguords Vent. System RM INDEXED REV 1 Rtu-No. *44 56,t.

Rec.No

• 445653 Dwg,445651 Rec.No.66323I Rec,No.663I95 l~UCi..EA~ SAFElY RE[AJEO, ;h. i:

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SEPARATION & COLOR CODE BILL OP MAHRIAL I MECH. ernv " "'

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NO.I DATE COORDINATED APPROVAL FOR CONSTRUCTION N O_J________fS_ E 6/ (;( If< I?

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.. 4 DESCRIPTION GM!SPEC I BY TABLE OF CHANGES I

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-I 161'!7Z7 GM{SPEC BY TABLE OF CHANGES TABLE OF CHANGES

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s DIABLO CANYON DEPARTMENT DF ENGINEERIN G PACIFIC GAS AND ELECTRIC COMPANY SAN FRANCISCO, CALIFORNIA 1 j I I I I I I I I I I I I I I I I I I I I I I I I I I l I I l f l.llLTI.LLLL..1...1.J I I I I 9

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