ML20005F513

Rev 0 to Procedure AP-790, Station Blackout

ML20005F513
Person / Time
Site:	Crystal River
Issue date:	12/15/1989
From:	FLORIDA POWER CORP.
To:
References
AP-790, NUDOCS 9001160349
Download: ML20005F513 (32)

Text

{{#Wiki_filter:u- ,7 ~ l' I DOCUMENT TRANSMITTAL FORM 21051 i FOR DOCUMENTS TRANSMITTED TO DC DESK (NRC)* i g, I DATE: 15 DEC 1989 BATCH: 109 x DOCUMENT NUMBER SHEET NUMBER REVISION NUMBER COPY NUMBER AP 790 00 7 INSTRUCTIONS TO THE ADDRESSEE COMPLETE EACH OF THE INSTRUCTIONS BELOW WHICH ARE MARKED WITH AN " X" (1) VERIFY THE DOCUMENTS RECEIVED AGREE WITH THE ABOVE DESCRIPTION (2) INCORPORATE THE TR ANSMITTED DOCUMENTS INTO YOUR FILES (3) DESTROY DOCUMENTS OR PORTIONS OF DOCUMENTS SUPERSEDED BY THE ABOVE _ (4) SIGN AND DATE IN THE SPACES BELOW INDICATING THAT YOU CDMPLETED 'THESE INSTRUCTIONS. (5) SIGN BELOW INDICATING THAT YOU HAVE READ AND UNDERSTOOD THE CHANGES AS IDENTIFIED .)(_ 6 ) RETUR TO DOCUMENT CONTROL, CRYSTAL RIVER UNIT 3: MAC# NA1C___ ( NR2 FLA. P OWER COR P., P. O. BOX 219 CRYSTAL RIVER FLA. 32629 l SIGNATURE OF ADDRESSEE DATE l o INDEPENDENT VERIFICATION DATE (OP S) l l [ D \\ 9001160349 891215 ADOCK 0500gg(y2 PDR F

u g; o.. l. 4 580 REV 00 DATE 11/28/89 AP-790 [,.;., )J STATION BLACK 0UT F l 1.0 ENTRY C0fEITIONS i If'a loss of off-site power occurs L 8HQ both 4160V ES buses can HQI be energized. IBEN use this procedure. e ' 5 " T 7 Q_ gaw;w wa:eepgm CW#. l ug.au w s** .,8 )

J l

1-l l l' This Procedure Addresses Safety Related Components l j Approved by NOS u) # cMbh Date 2- /r- (F AP-790-PAGE 1 of 31 SB0 ,rg. L)

r------ - ~ - - - j .m,

. - +,.

..1.=. 1 8 g ?.. W%u

u., * -

y.z., 1 y 9,k ' -l

d; ';{l ' '

3 3 ;- /.,o.. .. a 4 l' i 5; ,Q i,,. ;4 _ f? u@. e.,. 3 - m .a .g sr,- ' L

ei 4

<~ ) .I*. 4 j :-l T 9.c by e e l - . i,; 2 'nq .c a wj !y %m :s p e. i I n x ' a u,, l ?'; [s' 3 t $r,t; _j

u..,....

a q ,f., 'U.I '., q. t r o. l ,a '

r..

c

+ s, .r g. , ; <. s a m

y

.. v, f.'( fj l $ - l p } l ' 1I . 4 a ',,, r. ' o.. : a. l.?, .i ' t s )?( L_ '_"} :"t E .L! m.- \\$ 7.._y.. y, h;d. k, b t .#p 'r.- t-(, fr- ..c W;,c ' l .g L --g V :. fg 2 _, ilt .Q ' -'N ,} -u. /) +', . a s s R BLANK PAGE. 1 I,( f 4 y 4 m: 4 .: = : 1m I' i l.' q i-1 5 l 1 f, ,.e I', J '4 ( ".] + b i. I t 31 l., t.i> l l. 'i c; I. o i o u b Ih t' 'I

)

..!i 1 ? J f' ? J< { .i ? J', + M ]. F .h I 1 T l ,M ' ) I

• f.' f a

. AP-790; REV 00 PAGE 2 of 31 SB0 -i i.: \\ -r L 'g ~ -, ' '-,t i 't i .4 - s. i. ;.; m ..'..,__,,_a,,,,,_.,...__._,..._.g,_._____, ,.m.,__, 6 i

fi is ~ i 9' l. i !,; ~3 2.0 IMMEDIATE ACTIONS { J' \\ i 's,/ f ACTIONS DETAILS l 2.1 Close MUV-49. Valve position indication available at the ES panel. L 2.2 Ensure EFP-2 is started i I and EFIC OTSG 1evel control is selected to 65%. l I 'f i i ,-~ 4s_s/. t AP-790 REV 00 PAGE 3 of 31 SB0

g ;. m,, a. _ m 'lf( $,i d; c - ,a u. e i .y. g'.. j i, i , ' h 4 ?; )) p" ._..34 L

s.c.

.,-e. ? 4 '?'= -i s ,f;. ; ,.L- ,f- :i.. gs Q.' ' i ', a, W-E' a_, q ':>.' - 1 L s.- ., I.1 1 t 's T 1 ' $ <, W t g 4 '-*J :..-. M" i - ',,, t-,TJ' ..f/- q T: y .p4.:{- 1.,, t i ,.r., 4 ( i d ( 1 + e,... ' ). L

.5 ',

i .'M i j 1 ri , e.' ',f 'h g SY r ti i - k, il \\ s s a 9 .-{'>:; l,- u- $: t t 1 d,;.1 y;. ,s ' f, N .p, .w 3 BLANK PAGE- ~-t 4 s g's 5. f. a'~ .L,. 7 s {,' !!t ( =y , i i c .t, t. a- ' +-, a

.(

-b I ij ~h-g i 3 y* 4 t q i - l -\\F \\ r .:1: .a ' ') j L 4 -.t 4 s w'. j [ -;:.E.- g I s i. y J t .P 1 f j, ..t ,n

s., -.,

~ AP-790: REV 00 PAGE 4 of 31 SB0 i >-fi '. -.g 4 e A '.f'. y _ s. 4. t -a ve-.+ .a L .+kw.6-=~ e ew-.-.+es*<e-+, .e--..e. w eet e---.,. a-=-.--ww- ..b

~ 3.0 FOLLOW-UP ACTIONS f s i i %.J l ACTIONS DETAILS Neutron flux recorders will not be operable. Use edgewise meters for monitoring neutron flux levels. 3.1 Verify the reactor is o IR flux decreasing,

shutdown, o SR flux decreasing, i

o SR flux at shutdown level and not increasing. l 3.2 Notify SOTA of plant conditions. 3.3 Secure DC motors at the .__ MVP 3A, MVP A B/V LVBE OIL PP Main Control Board that MVP-3B, MVP B B/V LUBE OIL PP are not needed by placing MVP-3C, MVP C B/U LVBE OIL PP J.3 their control switches in RCP-3A, RCP A DC OIL LIFT PP \\s; Pull-to lock. RCP-38, RCP B DC OIL LIFT PP RCP-3C, RCP C DC OIL LIFT PP RCP-3D, RCP D DC OIL LIFT PP 3.4 Actuate MS line isolation o Depress "SG MAIN STM on both OTSGs. ISOLATION" pushbuttons, o Verify all 4 MSIVs closed. E012 in plant communications should be made with the hand-held radios during the performance of this procedure. 3.5 Notify available operator to monitor EFP-2. .f3 O AP-790 REV 00 PAGE 5 of 31 SB0

y L. 'T ,4-Table 1: _ Adequate Subcooling Margin RCS PRESS MARGIN > 1500 psig 2 20*F s 1500 psig 2 50*F O O AP-790 REV 00 PAGE 6 of 31 SB0

s, >'r 4 ,N ~ 3' 0 FOLLOW-UP' ACTIONS fCONT'D) J Q)l ACTIONS DETAILS j 3.6 IE, at any time while o See Table 1 for s performing this procedure, adequate subcooling i

adequate subcooling margin margins.

does 1101 exit. -IHEN raise OTSG levels to o Depress "95%" level. 95% using EFW. select pushbutton on 0TSG A and B.. I 3.7- -1E, at any time while . performing this procedure, 4160V ES bus. power is available, IBEN CONCURRENTLY PERFORM AP-770, Emergency Diesel Generator Actuation, beginning with Step 2.1, A_HQ'GO T0 S Hp 3.20 in this procedure. 3.8 Decrease main generator H, o Open GGV-7 and vent generator i pressure to = 0 psig. H to atmosphere. 2 (_[ o GGV-7 located on 95' TB. 3.9 Establish EFIC cabinet Block open all EFIC cabinet

cooling, doors in the 4 EFIC rooms.

............o................................................................ Holt Maintain OTSG PRESS > 100 psig to ensure EFP-2 availability. 3.10 Control OTSG PRESS to Local manual control of prevent cooldown of the the ADVs may be required. RCS. 3.11 Select PORV, RCV-10, ICS panel control switch, to CLOSE. 3.12 Place EFP-1 control switch in Provides for controlled start-up Pull-to-lock. following power restoration, ~ pQ AP-790 REV 00 PAGE 7 of 31 SB0

s. +g Table 1: Adequate Subcooling Margin RCS PRESS MARGIN > 1500 psig 2 20'F s 1500 psig 2 50'F-3.6 E ' adequate subcooling margin does E01 exist, M raise OTSG levels to 95% with EFW. 3.7 E 4160V ES bus power is.available, M CONCURRENTLY PERFORM AP-770, Emergency Diesel Generator Actuation, beginning with Step 2.1, AR G0-T0 Step 3.20 in this procedure. O O AP-790 REV 00 PAGE 8 of 31 SB0

l' '4 l. 4 3.0' FOLLOW-UP ACTIONS (CONT'D) O ACTIONS DETAILS CAUTION ' Steps 3.13 through 3.19 of this procedure must be performed within 30 minutes of the SB0 event initiation, to prevent premature battery degradation. 3.13 Begin transfer of control Have a Nuclear Operator to the Remote Shutdown proceed to the Remote Station. Shutdown Station. 3.14-The SSOD should proceed to the "B" ES 4160V room and establish communications with the Remote Shutdown Station. 891% Remote-Shutdown Station PZR level is uncompensated. At 2155 psig, O-uncompensated level will read approximately 60" lower than actual level. 3'.15 WHEN the Remote Shutdown 1 Establish communications Station is manned, with the Control Room. IEEN transfer control to the Remote Shutdown Station. 2 Notify SS0D to transfer "B" controls and verify "B" " RELAYS ENERGIZED" light-is lit. 3 ___ Notify SS00 to transfer "A" controls and verify "A" RELAYS ENERGIZED" light is lit. 4 Notify SS0D to proceed to the Remote Shutdown Station. 5 Transfer "AB" and "NON-SAFETY" controls. 6 Notify Control Room that transfer is complete. O AP-790 REV 00 PAGE 9 of 31 SB0 l

.e'- l ' '*i l - (~'( Table 1: Adequate Subcooling Margin J u /: RCS PRESS MARGIN- > 1500 psig 2 20'F-5 1500 psig 2 50*F-3.6 'If adequate subcooling margin does EQI exist,. IEER raise OTSG levels to 95% with EFW. 37 IE.4160V ES bus power is available, IBEN CONCVRRENTLY PERFORM AP-770, Emergency Diesel Generator i Actuation, beginning with Step 2.1, AJD GO TO Step.3.20 in this procedure. ,m - ]- f l AP-790 REV 00 PAGE 10 of 31 SB0

' k. g t 3.0 -F0LLOW-UP ACTIONS (CONT'D1 ACTIONS DETAILS + li91% Ensure VBDP-3 Bkr 22 and VBDP-6 Bkr 3 remain closed to provide power to the UHF repeaters and the commercial telephone. 3.16

Reduce loads supplied by-1 Open all VBDP-3 through Control Room distribution VBDP-7 load breakers panels VBDP-3 through VBDP-7.

- except VBDP-3 Bkr 22 and VBDP-6 Bkr 3. 2 Open VBDP-4 and VBDP-5 " MAIN" Bkrs. !!91% FWP-5A and FWP-5B should be operated for 30 minutes following event initiation. ~3.17 IE power restoration has 1 Place FWP-SA in Pull-to not occurred, lock. IBDi begin DPDP load shedding. 2 Place FWP-5B in Pull-to-lock. 3 Using Enclosure 1, open the listed DPDP switches. 3.18 De-energize plant computer 1 Open Inverter "AC Input" Inverter VBIT-lE. Bkr. 2 Open Inverter "AC Output" Bkr. 3 Open Inverter " Battery Input" Bkr. O l AP-790 REV 00 PAGE 11 of 31 SB0

7 2 9. L. l,' 7.. fx Table 1: Adequate Subcooling Margin 1ty RCS PRESS MARGIN > 1500 psig 2 20'F s 1500 psig 2 50*F 1 l r 3.6.1E adequate subcooling margin does flQI exist, IH[t[ raise OTSG levels to 95% with EFW. i 1 3.7' lE 4160V ES bus power is available, IEE!! CONCVRRENTLY PERFORM AP-770, Emergency Diesel Generator Actuation, beginning with Step 2.1, a!!Q GO TO Step 3.20 in this procedure. J V-l i- ) l. t AP-790 REV 00 PAGE 12 of 31 SB0 i

~ ~ v

c

+.: 3.0 F0LLOW-UP ACTIONS (CONT'DL 1 ACTIONS DETAILS o Use local H pressure 3.19 M main generator H2 pressure has decreased to indication,2.TB-156-PI, = 0 psig, located on 95' TB. M stop TBP-3 AND open DPDP switches for 1 P1 ace TBP-3 control switch this pump.. in Pull-to-lock. 2 Open DPDP 1A, switches,2 and 14. Continue-on in this procedure. 3.20 M ES 4160V power is available, M continue this procedure. 3.21-Ensure ES channels are 1 Close VBDP-4 and energized. VBDP-5 " Main" Bkrs. (N~ 2_ Close VBDP-3 Bkrs 1, 3 and 5. kl 3 Close VBDP-4 Bkrs 1 through 6. 4 Close VBDP-5 Bkrs 1 through 6. l 5_ Close VBDP-6 Bkrs 2, 4 and 6. 3.22-If ES channels were Located in each ES actuation de-energized, test cabinet. M reset the 3 ES power supplies. 3.23 Bypass or reset RB isolation "RB ISO RBl" on both A and B channels. "RB ISO RB2" "RB ISO RB3" 3.24 Bypass or reset LPI on both "LPI RC4" A and B LPI channels. "LPI RC5" A "LPI RC6" I Q AP-790 REV 00 PAGE 13 of 31 SB0

O to [.;_1;-

f. '-

4

Table 1: ' Adequate Subcooling=Margini

,s-S q pl

)_ 'RCS PRESS MARGIN

a;

> 1500 psig 2 20*F- -s 1500 psig 2 50*F c 7: i.. 3.6 If adequate subcooling margin does HDI exist, r: IBEH raise 0TSG levels to 95% with EFW. i 3.7 IE 4160V ES bus power is available, l IEEH CONCVRRENTLY PERFORM AP-770, Emergency Diesel Generator -j Actuation, beginning with~ Step 2.1,' AHQ-GO TO Step 3.20 in this-procedure. 4 l rm l} l' l-I. l= Ih . %J l l' AP-790 REV 00 PAGE 14 of 31 SB0

y ^ ^ l !a [ q; +... i ~3.0 FOLLOW-UP ACTIONS (CONT'D) ,m - x,L ACTIONS-DETAILS- - 3.25~ Bypass or reset HPI'on both' "HPI RCl" A and B HPI channels. "HPI RC2" "HPI RC3" L If the A ES 4160V ES/UV Undervoltage Lockout has actuated, it will be necessary to defeat this lockout by opening _ Switch AY, located in ES -4160V Bus A Cubicle 3A13 (Dummy Bkr) and reset the Undervoltage Lockout. H9.Lt SW pump may automatically start upon resetting of the UV conditions on the ES bus and restoration of bus power. t 3.26 Restore power to ES 4160V 1 Ensure switchgear room is A Bus. cleared prior to h energizing the bus. 3 ~3 4) 2 Close DPDP SA, switches 9 and 10. t i 3 Close one of the following L feeders by selecting CLOSE I position for = 10 seconds: 1 o 3211, Units 1 & 2 l Startup Transformer, 1 L 08 'l o 3205, Unit 3 Startup (: Transformer, j L l-QR 1 o 3209, If EDG-1A is operating at rated voltage and speed. L 4 Close Switch AY in Cubicle 3A13 (Dummy Bkr) if open. 1 j 1 U \\ AP-790 REV 00 PAGE 15 of 31 SB0 1' = -

w a u,+ f/ y :.y !*l' Le s t. ~( '( Table 1: Adequate Subcooling Margin ^ %i RCS PRESS MARGIN > 1500 psig 2 20*F s 1500 psig 2-50*F. 3.6 IE adequate subcooling margin does 80I exist, IllEN raise OTSG levels to 95% with EFW. ~ 3.7 1E 4160V ES bus power is available, IliEH CONCURRENTLY PERFORM AP. 770, Emergency Diesel Generator Actuation, beginning with Step 2.1, MQ GO TO Step 3.20 in this procedure. qf l-g i L } l l l l' ( L 11-i O ). AP-790 REV 00 PAGE 16 of 31 SB0 l l

! tL ~,

e.

3.0 FOLLOW-UP ACTIONS fCONT'D) ACTIONS DETAILS N91R 1f the B ES 4160V ES/UV Undervoltage Lockout has actuated, it will be necessary to defeat this lockout by opening Switch AY, located in ES 4160V-Bus B Cubicle 3B2 (Dummy Bkr) and reset the Undervoltage Lockout. H91R. SW and RW pumps may. automatically-start upon resetting of; the UV conditions.on the ES bus and restoration of bus power. 3.27 Restore power to ES 4160V 1 Ensure switchgear room is B Bus, cleared prior to energizing the bus. 2 Close DPDP 5B, switches 9 and 10. 3 Close one of the following feeders by selectir.g CLOSE position for = 10 seconds: o 3212, Units 1 & 2 Startup Transformer, M o 3206, Unit 3.Startup Transformer,, E o 3210, If EDG-1B is operating at rated voltage and speed. 4 Close Switch AY in Cubicle 3B2 (Dummy'Bkr) if open. O 1 AP-790 REV 00 PAGE 17 of 31 SB0

g, - /j '. - ; q A-Table - 1: Adequate-Subcooling Margin d _[. 2 RCS PRESS MARGIN > 1500 psig 2 20*F s 1500 psig 2 50*F 3.6 If adequate subcooling margin does NQI exist, IEN raise OTSG levels to 95% with EFW. o i 3.7 IE 4160V ES bus power is available,. I E H CONCURRENTLY. PERFORM AP-770, Emergency Diesel Generator -i 'f Actuation, beginning with Step 2.1, AN,Q GO TO Step 3.20 in this procedure. LW j -(,f L i l.- l L I l 1

fN

'G i AP-790 REV 00 PAGE 18 of 31 SB0

i-o : o :.-;,; 3.0 F0LLO61-UP ACTIONS (CONT'D) ' ACTIONS DETAILS 3.28- ~ Align battery chargers,-in o Open the DC Output and AC preparation for power-Input Bkrs for all. battery restoration.- chargers. DPBC-1A DPBC-1B DPBC-1C DPBC-10 DPBC-1E DPBC-1F-3.29 Ensure all ES 480V buses o If UV lockout relays tripped are energized from the JBEH reset lockout relays, respective ES 4160V bus, 1-Open load Bkrs. 2 Energize bus. 3 Close load Bkrs. ES 480V Bus 3A ES~480V Bus 3B 3.30 Ensure all ES 480V MCCs ES MCC'3Al are energized. ES MCC 3A2 ES MCC 3A3 ES MCC 381-ES MCC'3B2 ES MCC 383 ES MCC 3AB 3.31 Place battery chargers in Refer to OP-705, Emergency service to all batteries. . Power - DC System, Section 5.1. 3.32 Energize all DPDPs, o Refer to Enclosure 1 for DPDP Bkrs, o Refer to OP-705, Emergency Power - DC System, Section 5.5. o Refer to OP 7f0E,125/250 Volt DC Distribution Panels (DPDPs). O l l AP-790 REV 00 PAGE 19 of 31 SB0

mi_'" 4 4 s r Table 1: Adequate.Subcooling Margin ~

f'Y)I

( RCS PRESS MARGIN > 1500 psig 2 20*F 's 1500 psig 2 50*F 3.6 E adequate subcooling margin does HDI exist, Iti@ raise OTSG-levels.to 95% with EFW. 3.7 E 4160V ES bus power is available, JJ1EN CONCURRENTLY PERFORM AP-770, Emergency Diesel Generator ? Actuation, beginning with Step 2.1, 6tQ G0 TO Step 3.20 in this procedure. t . -r) y %_.) L l' 1 i l; l 1 i-1- i. l (% ,_/ AP-790 REV 00 PAGE 20 of 31 SB0 n..

- - - ~

Ss

, y s ~,; .z '3.0 ^ FOLLOW-UP ACTIONS (CONT'D) ACTIONS-DETAILS 3.33 Energize-Inverter VBIT-1E. 1 Close Inverter " Battery Input" Bkr. 2 __ Close Inverter "AC Output" Bkr. 3 CloseInverter"hcInput" Bkr. 4 Verify normal Inverter-AC output voltage of-approximately 120V. o This inverter supplies power to the plant computer. 3.34 Ensure all 120V AC Vital Refer to Enclor.to r: 1 for pre-buses are energized, event VBDP Bkr alignment. At@ close VBDP load Bkrs. -3.35 Transfer control to the 1-Establish. communications Control Room. -with the Control-Room. 2 Ensure control switch status in the Control Room agrees with the. Remote Shutdown Station. 3 Transfer "AB" and "lj0N-SAFETY" controls. 4 Transfer "A" controls and verify "A" RELAYS ENERGIZED light-is out. 5 Transfer "B" controls and verify "B" RELAYS ENERGlZED light is out. 6 Notify the Control Room that transfers complete. 3.36 Rev~iew ES status board and operate ES components for plant control and stabilization. O AP-790 REV 00 PAGE 21 of 31 SB0

f). l i

0 V

Table 1:~ Adequate Subcooling Margin c 7"!

w RCS PRESS MARGIN

> 1500 psig

t 20*F s 1500 psig it 50*F 3.6-If adequate subcooling margin does HQI. exist, ItiEN raise OTSG. levels.to 95% with EFW.

3.7 IE 4160V ES bus power is-available, IllEN CONCURRENTLY. PERFORM AP-770, Emergency Diesel Generator Actuation, beginning with Step 2.1, A_RQ GO T0 Step 3.20 in this procedure. .( ? O AP-790 REV 00 PAGE 22 of 31 SB0 L

p e..,;,'.. f^~( 3.0-F0LLOW-UP ACTIONS (CONT'D)' (/. ACTIONS DETAILS 3.37-- ' Ensure ICS~and NNI systems are energized.

'. A~

Reset the NI/RPS power ~ supplies located in the RPS cabinets.

3. 3 9..

_ CONCURRENTLY PERFORM AP-S30, Natural Circulation, beginning with Step 3.3. 3.'40 Jf EDG(s): supplying the l 4160V ES bus (es)- Ili@ GO TO AP-770 Emergency Diesel Generator Actuation,

l beginning with Step 3.3.

l i f\\ i i Lj L L l 3 l l L l L I l.AP-790 REV 00 PAGE 23 of 31 SB0

..=y L,; .s

)-'sg Table 1:- Adequate Subcooling Margin

Qf RCS PRESS.

MARGIN > 1500 psig .2 20*F c $ 1500 psig 2 50*F 3.6 lE adequate subcooling margin does HQI exist, IHEN raise OTSG levels to 95% with EFW, 3.7 IE' 4160V ES bus power is available, IEEN CONCURRENTLY PERFORM AP-770, Emergency Diesel Generator Actuation, beginning with Step 2.1, AND GO TO Step 3.20 in this procedure. i. l "i. l:(\\m/: l'. l l 'i l' o , D l t AP-790 REV 00 PAGE 24 of 31 SB0 L.

o; j e mi

4-

e =-

/7 3.0 ~F0LLOW-UP ACTIONS (CONT'D) l Qf ' ACTIONS-DETAILS s CAUTION Ensure cooling water is supplied to MVP prior to starting. ' 3. 41~ . Establish RCS Make-up and 1 Close MVV-16, Seal I RCP Seal Injection. Injection Control Valve. 2 Verify "SWGR TRANSF PERMIT" light is lit for desired MVP to be started. 3 Ensure MVP Main Lube Oil Pump running. 4 Start'MVP Main Gear Oil Pump. 5-Ensure respective suction valves are opened. 6 Start desired MVP. 1 7 Ensure MVV-18 is open, Seal Injection Block Valve. 8 Throttle open MUV-16, Seal Injection Control Valve, to obtain 2 gpm/RCP. [ 9 Ensure MUV-253 is open, RCPs Controlled Bleed-off l-M0V. h 10 Throttle open MVV-16 over a 30 min period to l establish = 10 gpm/RCP. 11 Obtain desired PZR level. 3.42 Restore plant systems to Refer to the applicable operating status. operating procedures. L AP-790 REV 00 PAGE 25 of 31 SB0

._3.----- rz ~; g,s n: r G x *.. D:,/ u n... w: i p.. - fx..

R }l.

o-. o;, f t a. y I ,g4' 5 i .r< 1 f .\\' I i 2 ! !:;:~,r s. BLANK PAGE a k. 3 I. ij. f j r L. 1.< l 3. i l t m ), 1 ,m . \\ AP-790 REV 00 PAGE 26 of 31 SB0

m: -e,

p;

{il4: }.. * *~ E ?N}l' ~ l; " DPDP Switches (Step 3.17) DPDP 1A' (108' CC A Battery Room) DPDP 4A- (124' CC CRD Room) Switch # Onen Closed Switch # -Ocen Closed-i -18 2 3 .DPDP 2A. (119' AB-west of elevator) 5 6 Switch #' Ooen Closed 7 16

^ '

2> -3 DPDP 5A (124' CC A 480V ES Bus Room) q 4 19 Switch # Open Closed '20 2 ~DPDP 3A -(95' TB 480V Switchgear Room) 3 1 4 f' Ooen Closed 5 Switch # 6 l' 8 10 i ?x '4-11 7 14. 10 15 11: 16 13l 17 14 18 16-19 l: 17 -20 L 20 21 l 21 22-22 23 23. 25

25 26

-l 26. 27 L '27 28 31 L i, l 1 -A- ' ;'k/ .AP-790 REV 00 PAGE 27 of 31 SB0 E

n , w, h- * 'J A: --t.

.;s) t

,c.- ,, i,.. j.h x,j.. t. , i .y a 7 .! a. t -l W-BLANK PAGE .s ,-_b i i i 1 4 'l s - l 1 lD). AP-790 REV 00 PAGE 28 of 31 SB0 -- - = -- - = - = -

p _ y, 7 s} 0: _. f a .o;. o :: 7,.,,; * [:, 't (CONT'D)

• )

^ DPDP Switches 'DPDP 6A ! (119' AB EDG-1A Room). DPDP 3B (119' TB north of FWHE-6A) Switch # Open-Closed Switch # Ooen Closed 1-1~ [- 3~ -2 4 4 n 6 9 7 10 8 11 . 9 -- 12 10 14 12= '15 14 16 19 . DPDP 7A.'(Control Room) 20 1 22 Switch #- Ooen Closed-23 24 1. 25 1 13 26 t 4 27 C .7 - 29 o I -- () 12 DPDP 4B (124' CC-CRD Room) L 'DPDP 8A~:(108'~CC~A 4160V ES Bus Room) L; Switch # Open Closed L Switch # Open Closed L 1 lc 8 2. 10 3 11-4 ( 14 5 6 DPDP 2B (119' AB by ES-MCC-381) 7 9 Switch # Ooen Closed 11 16 3 4 6 9-10 p] - (,/ AP-790 REV 00 PAGE 29 of 31 SB0

q 1 j 1 f: )

. -J9 i

...,j$ L 't

f"*f,

t r-Q:: ,u m r 1 ? t 'k t b v,, r i i BLANK PAGE .y^p ' V i 5 .i it b iw AP-790 REV 00 PAGE 30 of 31 SB0 ..I

p,; ygs -1 7 ,. c j %3$: M,l g,, e f e( g -m b, . Enclosure l~(CONT'D) 1 sj ,\\ /. b DPDP Switches 'DPDP SB (124.' CC B 480V-ES Bus Room) DPDP 7B (Control Room). .' Switch #- -Ooen-Closed Switch # Open-Closed 1. 3= '2 4- '3 5 4 4 14 5 6 DPDP.8B (108' CC B 4160V ES Bus. Room) 7. 8 ' Switch # Ooen' Closed '9 10 10 11-12 .15 18 "i 14 17 16 20 '17 21 '18 -19 fg 20 %f '23 l. 25 26 L

27. -

r 28 l. 30 ' 31 ~ L .DPDP 6B.-(119' AB EDG-1B Room) l' ~ Switch # Ooen Closed 1-3 4 6 7 8 9 10-12 14 AP-790 REV 00 PAGE 31 of 31 SB0 ,}}