ML090400737

Entergy Nuclear Northeast - 2-ECA-0.0, Revision: 2; Loss of All AC Power

ML090400737
Person / Time
Site:	Indian Point
Issue date:	04/23/2008
From:	Entergy Nuclear Northeast
To:	Engineering Region 1 Branch 1
John Richmond
References
2-ECA-0.0, Rev 2
Download: ML090400737 (29)

Text

Nuclear Northeast Procedure Use Is:

0 Continuous Reference 0 Information Control Copy:

I Effective Date:

2-ECA-0.0, Revision: 2 Approved By:

PARTIAL REVISION

Number:

2-ECA-0.0 A.

B.

C.

i i t l e :

Revision Number:

LOSS OF ALL AC POWER REV. 2 PURPOSE This procedure provides actions to respond to a loss of all AC power.

SYMPTOMS OR ENTRY CONDITIONS 1 ) The symptom of a loss of all AC power is the indication that all 480V busses are de-energized.

2) This procedure is entered from 2-E-0, REACTOR TRIP OR SAFETY INJECTION, Step 3, on the indication that all 480V busses are de-energized.

ADVERSE CONTAINMENT CONDITIONS EOP values for adverse containment should be used if either of the following conditions exist:

o Containment radiation levels greater than 1E5 R/hr.

- OR -

o Containment pressure greater than 4 psig.

I 1 of 28

Number:

l i t l e :

2 -

ECA-0.O LOSS OF ALL AC POWER I.

V e r i f v Reactor T r i D :

Manually trip reactor.

o Reactor trip breakers - OPEN o Neutron flux - DECREASING o Rod bottom lights - LIT Revision Number:

REV. 2 o Rod position indicators - AT ZERO

2.

V e r i f v Turbine Trio:

a. All turbine stop valves -

a. Manually trip turbine.

LE CLOSED turbine will !4OJ

trip, close MSIVs.

IF MSIVs can NOi be closed, THEN manually run back turbine.

2 of 28

Number:

T i L l e :

l l e v i s i o n Number:

2-ECA-O.O LOSS OF ALL AC POWER REV. 2

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ACTION/EXPECTED RESPONSE

3.

Check If RCS Is Isolated:

a. PRZR PORVs - CLOSED

a. E PRZR pressure less than 2335 psiy, THEN manually close PORVs.

b. Letdown isolation valves -

b. Manually close valve.

CLOSED 0 LCV-459 o 200A o 2008 0 2OOC

c. Excess letdown isolation valve

c. Manually close valve.

- CLOSED o 213

4.

Verify AFW Flow - GREATER THAN 400 GPM:

a. Turbine-driven AFW pump RUNNING

b. Manually align turbine-driven AFW pump FCVs as necessary

c. Adjust steam supply speed control valve as necessary:

o HCV-1118

a. Manually open steam supply reyulator valve:

0 PCV-1139 3 of 28

Number:

2 - ECA-O. O f

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CAUTION The l o a d on t h e d i e s e l g e n e r a t o r s should remain l e s s t h a n 1650 KW b u t may be i n c r e a s e d t o 2000 KW f o r a maximum of 2 h r s i n any 24 h r p e r i o d.

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Title:

Revision Number:

LOSS OF ALL AC POWER REV. 2

5.

T r y To Restore Power t o Anv 480V

&.L a. Energize 48UV bus w i t h d i e s e l g e n e r a t o r :

1) Check d i e s e l g e n e r a t o r ( s ) -

1 ) Emergency s t a r t d i e s e l RUNNING g e n e r a t o r ( s 1 :

a ) Manually a c t u a t e SI

2) V e r i f y 480V bus -

2 )

Manually e n e r g i z e 480V bus AUTOMATICALLY ENERGIZED f r o m r u n n i n g d i e s e l g e n e r a t o r.

This Step continied on the next page.

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2-ECA-0.U STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED IF 48UV bus can NOT be energized from diesel generator(s1, iHEN perform the following:

a ) Locally trip running diesel generator(s).

b f Contact Con Ed UU to determine if 138KV or 13.8KV power readily available.

c ) E outside power is NOT readily available, THEN perform the following:

1. Start Appendix R DG per:

0 2-SOP-27.6, UNIT 2 APPENDIX R UIESEL GENERATOR OPERATION

2. Dispatch NPU to black start a GT per:

0 2-SOP-27.5.3, BLACK START OF GAS TURBINE 1, 2,

3.

3. Go to Step 6. OBSERVE CAUTIONS PRIOR TU STEP 6.

d ) E outside power is readily available, THEN attempt to manually energize 48UV bus using the following:

0 2-AUP-138KV-I, LOSS OF POWER TO 6.9KV BUS 5 AND/OR 6.

0 2-AOP-48UV-1, LOSS OF 48UV BUS.

T h i s Step continued on the next page.

5 of 28 LOSS UF ALL AC POWER REV. 2

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Number:

2 -

ECA-0.0

b. Check 480V busses - AT LEAST ONE ENERGIZED:

o 2A AND 3A

- OR 0 5P l i t l e :

Revision Number:

LOSS OF ALL AC POWER REV. 2 OR o 6A c. S t a r t one s e r v i c e water pump on t h e e s s e n t i a l header t o support r u n n i n g d i e s e l g e n e r a t o r

d. Return t o procedure and s t e p i n e f f e c t and i m l e m e n t FRPs

b. Go t o Step 6. OBSERVE CAUTIONS P R I O R TO STEP 6 6 of 28

Number':

T i t l e :

Revision Number:

2 -

ECA-0. O LOSS OF ALL AC POWER REV. 2 STEP I

CAUTION f

o When power i s r e s t o r e d t o any 480V bus, recovery a c t i o n s s h o u l d

+

c o n t i n u e s t a r t i n g w i t h Step 24.

o If an S I s i g n a l e x i s t s or i f an SI s i g n a l i s a c t u a t e d d u r i n g t h i s procedure, it should be r e s e t ( r e f e r t o Step 18b) t o p e r m i t manual l o a d i n g o f equipment on a 480V bus.

' o I f a d i e s e l g e n e r a t o r i s s t a r t e d, a s e r v i c e water pump should be s t a r t e d on t h e e s s e n t i a l header t o p r o v i d e d i e s e l g e n e r a t o r c o o l i n g.

o I f a p a r t i a l t r a i n (bus 2A o r bus 3 A ) i s energized, safeguards equipment on t h e energized bus i n c l u d i n g RCP seal c o o l i n g s h o u l d be placed i n PULLOUT or i s o l a t e d.

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6.

Place F o i l o w i n q Eauioment Switches I n PULLOUT P o s i t i o n :

o Containment spray pumps o S I pumps o FCUs o M o t o r - d r i v e n AFW pumps o T u r n i n g gear o i l pump o Bearing o i l pump o T u r b i n e a u x i l i a r y o i l pump o CCW pumps o RHR pumps 7 o f 28

2 - ECA-0.0 This Step contiiiiied on the next page.

8 o f 28 LOSS OF ALL AC POWER REV. 2

Number' :

r i l l e :

2-ECA-0. O LOSS OF ALL AC POWER 9 of 28 Revision Number:

REV. 2

Nunibe r :

Title:

Rev1 siori Number:

2-ECA-0.0 LOSS OF ALL AC POWER R E V. 2

8.

DisDatch Personnel To L o c a l l v Close Valves To I s o l a t e RCP Seals And Place Valve Switches I n CLOSED P o s i t i o n :

o RCP seal r e t u r n i s o l a t i o n v a l v e o u t s i d e containment:

0 MOV-222 o RCP seal i n j e c t i o n i s o l a t i o n valves o u t s i d e containment:

0 MOV-250A o MOV-250B 0 MOV-250C o MOV-2500 o RCP thermal b a r r i e r CCW r e t u r n i s o l a t i o n v a l v e o u t s i d e containment:

0 MOV-789 10 o f 28

Number:

.I i t I e :

Kevi s ion Nuinber :

2 -

ECA-O.O LOSS OF ALL AC POWER REV. 2

9.

Check If CST Is Isolated From Hotwell :

a. Verify condenser hotwell isolation valves - CLOSED:

o LCV-1128 0 LCV-1128A 0 LCV-1129 o CD-6 o CT-8

b. Place condenser hotwell isolation valve controllers in MANUAL:

o LCV-1128 o LCV-1128A 0 LCV-1129

10.

Check SG Status:

a. MSIVs - CLOSED

b. Main FW regulating and bypass valves - CLOSED

c. Blowdown isolation valves CLOSED

a.

valve(s1 open or position not known, THEN dispatch personnel to locally close valve(s).

valve(s1 can NOT be closed, iHEN locally close associated isolation valve(s1:

o CT-7 for LCV-1128 and o CD-5 f o r LCV-1129.

LCV-1128A.

Manually close valves. E valves can be manually closed, locally close valves.

Locally close MSIVs as necessary per 2-SOP-ESP-001, LOCAL EQUIPMENT OPERATION AND COMPENSATORY ACTIONS.

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Number:

Title:

2-ECA-O.D LOSS OF ALL AC POWER 1 1.

Check If Aiiv SG Is Faulted:

a. Check pressures in all SGs -

o ANY SG PRESSURE DECREASING IN AN UNCONTROLLED MANNER

- OR -

o ANY SG COMPLETELY DEPRESSURIZED

b. Isolate faulted S G ( s ) :

o Isolate AFW flow o Dispatch NPO to close steam supply header valves to turbine-driven AFW pump from faulted S G ( s ) :

o MS-41 (SG 22) o MS-42 (SG 23) o Verify SG atmospheric steam dumDs - CLOSED Revision Number:

REV. 2

a. Go to SteD 12

b. Manually close valves. 1_E valves can NOT be closed, THEN dispatch NPO to attempt to locally close valves or associated block valves.

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Number:

2 - ECA-0.0

12.

Check I f SG Tubes Are I n t a c t :

o Main s t e a m l i n e r a d i a t i o n r e c o r d e r (R-28, R-29, R-30 and R-31) - NORMAL o Condenser a i r e j e c t o r r a d i a t i o n r e c o r d e r ( R - 4 5 ) - NORMAL o SG blowdown r a d i a t i o n r e c o r d e r (R-49) - NORMAL o NO SG LEVEL INCREASING I N AN UNCONTROLLED MANNER T i t l e :

Revision Number:

LOSS OF ALL AC POWER R E V. 2 T r y t o i d e n t i f y r u p t u r e d S G ( s ).

Continue w i t h Step 13.

OBSERVE CAUTION P R I O R TO STEP 13. WHEN r u p t u r e d S G ( s ) i d e n t i f i e d, THEN i s o l a t e r u p t u r e d S G ( s ) :

o I s o l a t e AFW f l o w o Dispatch NPO t o c l o s e steam supply header valves t o t u r b i n e - d r i v e n AFW pump f r o m r u p t u r e d S G ( s ) :

0 MS-41 (SG 22) 0 MS-42 (SG 23) o A d j u s t r u p t u r e d S G ( s )

atmospheric steam dump c o n t r o l l e r s e t p o i n t t o 74%,

1030 p s i g.

WHEN r u p t u r e d SG p r e s s u r e l e s s t h a n 1030 p s i g. THEN v e r i f y r u p t u r e d SG atmospheric steam dump closed. 1+

NOT c l o s e d,

THEN p l a c e c o n t r o l l e r i n manual and c l o s e v a l v e. I F v a l v e can NOT be c l o s e d,

l o c a l l y i s o l a t e oDen v a l v e.

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Number:

2 - E C A - O r 0 14 o f 28 l i t l e :

Revision Number:

LOSS O F A L L AC POWER REV. 2

N~inbii r :

'I i ti e:

2-ECA-O. 0 LOSS OF ALL AC POWER 15 of 28 R e v i s i o n Number:

REV. 2

Number:

2-ECA-0.0 o SG pressures should NOT be decreased to less than 110 psig to prevent injection of accumulator nitrogen into the RCS.

o SG narrow range level should be maintained greater than 10% ( 2 7 % FOR ADVERSE CONTAINMENT) in at least one intact SG.

If level can NOT be maintained, SG depressurization should be stopped until level is restored in at least one SG.

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Title:

Revision Number:

LOSS OF ALL AC POWER REV. 2 I

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NOTE o The SGs should be depressurized at a rate sufficient to maintain a cooldown rate in the RCS cold legs less than 100°F per hour. This will minimize RCS inventory loss while cooling the RCP seals in a controlled manner.

o PRZR level may be lost and reactor vessel upper head voiding may occur due to depressurization of SGs.

Depressurization should NOT be stopped to Drevent these occurrences.

16.

Deoressurire Intact SGs To 210 D S i q :

a. Check SG narrow range levels -

a. Perform the following:

GREATER THAN 10% (27% FOR ADVERSE CONTAINMENT) in at

1) Maintain maximum AFW flow least one SG until narrow range level greater than 10% (27% FOR ADVERSE CONTAINMENT) in at least one SG.

2) Continue with Step 1 7.

WHEN narrow range level greater than 10% (27% FOR ADVERSE CONTAINMENT) in at least one SG, THEN do Steps 16b through 16e.

This Step coniinued on t h e next page.

1 6 of 28

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l i t l e :

2 -ECA-O. O LOSS OF ALL AC POWER b. Manually dump steam u s i n g SG atmospheric steam dumps t o m a i n t a i n cooldown r a t e i n RCS c o l d l e g s - LESS THAN 100"FiHR Revision Number:

R E V. 2 c. Check RCS c o l d l e g temperatures - GREATER THAN 325" F

d. Check SG pressures - LESS THAN 210 P S I G

e. Manually c o n t r o l SG atmospheric steam dumps t o m a i n t a i n SG pressures a t 210 p s i 0 1 7.

Check Reactor S u b c r i t i c a l :

o I n t e r m e d i a t e range channels -

ZERO OR NEGATIVE STARTUP RATE o Source range channels - ZERO OR NEGATIVE STARTUP RATE

b. L o c a l l y dump steam u s i n g SG atmospheric steam dumps:

o Refer t o 2-SOP-ESP-001, LOCAL EQUIPMENT OPERATION AND COMPENSATORY ACTIONS for l o c a l o p e r a t i o n as necessary.

c. Perform t h e f o l l o w i n g :

1) C o n t r o l SG atmospheric steam dumps t o s t o p SG d e p r e s s u r i r a t i on.

2) Go t o Step 1 7.

d. Continue w i t h Step 1 7. WHEN SG pressures decrease t o l e s s t h a n 210 p s i g, THEN do Step 16e.

e. L o c a l l y c o n t r o l SG atmospheric steam dumps t o m a i n t a i n SG pressures a t 210 p s i g :

o Refer t o 2-SOP-ESP-001, LOCAL EQUIPMENT OPERATION AND COMPENSATORY ACTIONS for l o c a l o p e r a t i o n as necessary.

C o n t r o l SG atmospheric steam dumps t o s t o p SG d e p r e s s u r i z a t i o n and a l l o w RCS t o heat up.

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2-ECA-0.0 LOSS OF ALL AC POWER CAUTION K r v i s i o n Number:

REV. 2 Placing key switches to DEFEAT will prevent auto SI actuation.

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II Depressurization of SGs will result in SI actuation. SI should be reset to permit manual loading of equipment on 480V bus.

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18 Check SI Sianal Status:

a. SI - HAS BEEN ACTUATED b. Reset SI:

1 ) Check a l l CCW pumps RUNNING a. Go to Step 22. WHEN SI is actuated, THEN do Steps 18b, 19, 20 and 21.

1 ) Place non-running CCW pumps CCR control switches in PULLOUT.

2) Place controls for main AND bypass feedwater regulating valves to CLOSE 3 ) Verify Automatic Safeguards Actuation key switches on Panel SB-2 in DEFEAT position:

o Train A SIA-1

- AND -

o Train B SIA-2 4 ) One at a time, depress Safety Injection reset buttons (Panel SB-2):

o Train A o Train B

5) Verify Train A AND B - RESET 5 ) Verify Relays reset (Top of Safeguards Initiation Racks 1-1 AND 2-11:

0 SIA-1 o SIM-1 0 SIA-2 o SIM-2 18 of 28

2-ECA-0.0 ACTION/EXPECTED RESPONSE ATTACHMENT 1 p r o v i d e s a l i s t o f Phase A valves.

LOSS OF ALL AC POWER R E V. 2

19.

V e r i f y Containment I s o l a t i o n Phase A :

a. Phase A - ACTUATED 0 T r a i n A master r e l a y C A I (above r a c k E )

o T r a i n 8 master r e l a y CA2 (above r a c k F )

b. Phase A v a l v e s - CLOSED

c. I V S W v a l v e s o 1410 o 1413 o SOV-3518 o SOV-3519

d. WCP v a l v e s o PCV 1238 o PCV 1239 o PCV 1240 o PCV 1241 OPEN:

OPEN:

a. Manually a c t u a t e phase A.

b. Manually c l o s e v a l v e s.

I F v a l v e s can NOT be m a n u a l 5 c l o s e d, THEN l o c a l l y c l o s e Val ves.

c. Manually open v a l v e s.

d. Manually open valves.

e. Place personnel AND equipment h a t c h s o l e n o i d c o n t r o l s w i t c h e s t o INCIDENT on SM panel 19 of 28

Number:

2-ECA-0.0

20.

Verify Containment Ventilation Isolation:

T i t l e :

llcvi s ion Number:

LOSS OF ALL AC POWER REV. 2

a. Containment purge valves -

a. Manually close valves.

CLOSED:

o FCV-1170 iHEN close valves from fan o FCV-1171 room.

o FCV-1173 IF valves can NOT be closed, IF valves can NOT be closed, o FCV-1172 inEN dispatch operator and HP personnel to close outside valves by isolating instrument air:

0 FCV-1171, IA-780 0 FCV-1173, IA-779 b. Containment pressure relief b. Manually close valves.

valves - CLOSED:

o PCV-1190 iHEN close valves from fan 0 PCV-I191 room.

0 PCV-1192 IF valves can NOT be closed, IF valves can NOT be closed, THEN dispatch operator AND H P personnel to close outside valves by isolating instrument air:

0 PCV-1191, IA-777 o PCV-1192, IA-778 IF containment pressure relief can &QJ.

be isolated, jXJN-locally close the following valves (Fan House 88 ft. e l ) :

0 UH-1013, Pressure Relief Fan 0 UH-1014, Pressure Relief Fan Inlet Stop Outlet stop 20 of 28

Nuniber :

2 - ECA-0. O 2 1. Check Containment Pressure - HAS Perform t h e f o l l o w i n g :

REMAINED LESS THAN 24 P S I G a.

V e r i f y containment sDraY

Title:

Revision Number:

LOSS O F ALL AC POWER REV. 2 s i g n a i actuated. U ' ~,

THEN manually a c t u a t e.

b. V e r i f y containment i s o l a t i o n Phase B v a l v e s c l o s e d.

IF

NOT,

~ THEN manually c l o s e v a l v e s.

I F v a l v e s can NOT be manually c l o s e d, TnEN l o c a l l y c l o s e v a l v e s.

c. V e r i f y I V S W i s o l a t i o n v a l v e s open:

o 7864 o 7865 o 7866 o 7867

d. One a t a t i m e, depress Containment Spray Reset Pushbuttons:

o Spray SYS Reset T r a i n A o Spray S Y S Reset T r a i n B 2 2. Check Core E x i t TCs - LESS THAN I F Core E x i t temperatures g r e a t e r 1200°F t h a n 1 2 0 0 ° F and i n c r e a s i n g, THEN 40 t o S A C R G - I, SEVERE ACCIDENT CONTROL ROOM GUIDELINE I N I T I A L RESPONSE, Step 1.

21 o f 28

Number:

2-ECA-O. O o 2A AND 3A 1 )

Check s t a t u s o f l o c a l litle:

Rev is ion Nuiubcr:

LOSS OF ALL AC POWER R E V. 2 OR -

a c t i o n s :

o 5A

- OR o 6A o AC power r e s t o r a t i o n o RCP seal i s o l a t i o n.

o DC power s u p p l y.

2) Check s t a t u s o f a u x i l i a r y b o r a t i o n systems:

o BAST t e m p e r a t u r e g r e a t e r t h a n 155°F.

I F temperature less t h a n 155°F. request TSC t o p r o v i d e emergency power supply f o r b o r i c a c i d h e a t t r a c e t o p r e v e n t c r y s t a l 1 i r a t i o n.

3) Check s t a t u s of spent fuel c o o l i n g :

o Spent fuel p i t l e v e l g r e a t e r t h a n l o w l e v e l a l a r m.

I F l e v e l l e s s t h a n l o w level alarm, THEN d i s p a t c h NPO t o makeup t o t h e spent f u e l p i t as necessary.

4 ) Open doors on a l l c o n t r o l room c a b i n e t s.

5 ) D i s p a t c h NPO t o open AFW pump room r o l l -up d o o r.

6 )

Return t o Step 11.

OBSERVE CAUTION P R I O R TO STEP 11.

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2-ECA-O. O LOSS OF ALL AC POWER CAUTION The loads placed on the energized 480V bus should NOi exceed the capacity of the power source.

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NOTE ATTACHMENT 2 provides a list of 480V equipment load ratings.

R e v i s i o n Number:

REV. 2

25.

Verify Service Water System Ouerati on :

I a. Verify a t least one pump -

a. Manually start pump.

RUNNING ON ESSENTIAL HEADER I

b. Service water valves from

b. Locally open valves as 23 of 28

Number:

l ~ i t i e :

2-ECA-0.0 LOSS OF ALL AC POWER a1 ternate power supply per 2-SOP-27.1.6, INSTRUMENT BUS, DC OISTRIBUTION SYSTEM AND PA SYSTEM INVERTER llev is ion Nllmber :

REV. 2

d. 23 Static Inverter on alternate power supply per 2-SOP-27.1.6 o Bus 2A:

a. MCCs:

o MCC 24 o MCC 24A

b. 22 Battery Charger in service

c. 22 Static Inverter on alternate power supply per 2-SOP-27.1.6

d. PA System Inverter on alternate power supply per 2-SOP-27.1.6 This Step continued on thc n r x t page.

24 of 28

Numtier :

2-ECA-0.0 o Bus SA:

Title:

Revision Number:

LOSS OF ALL AC POWER REV. 2

a. MCCs:

o MCC 26B o MCC 27A b. 24 Battery Charger in service

c. 24 Static Inverter on alternate power supply per 2-SOP-27.1.6 25 of 28

Nurnoer :

1 i t.1 e :

2 - ECA-0.0 LOSS OF ALL AC POWER NOTE If RCP seal cooling was previously isolated, f u r t h e r cooling of the RCP s e a l s will be established by natural circulation cooldown as directed i n subsequent procedures.

Revision Number:

REV. 2

27.

Select Recovery Procedure:

a. Check RCS subcooling based on a. Go t o 2-ECA-0.2, LOSS O F ALL core e x i t TCs - GREATER THAN AC POWER RECOVERY WITH SI VALUE OBTAINED FROM TABLE:

REQUIRED, Step 1.

0

- 400 401 - 800 801 - 1200 1201 - 2500 52 ( 8 3 )

36 (49) 23 ( 3 0 )

19 ( 2 6 )

b. Check PRZR level - GREATER b. GO to 2-ECA-0.2, LOSS OF ALL THAN 14% (33% FOR ADVERSE AC POWER RECOVERY WITH SI CONTAINMENT)

REOUIRED, Step 1.

c. Check i f S I equipment -

C. GO t o 2-ECA-0.1, LOSS O F ALL ACTUATED WITH RESULTANT AC POWER RECOVERY WITHOUT SI INJECTION FLOW UPON AC POWER REQUIRED, Step 1.

RESTORATION

d. Gn to 2-ECA-0.2. LOSS OF All

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AC POWER RECOVERY WITH SI REQUIRED, Step 1 END 26 of 28

Number:

1itie:

2-ECA-0.0 LOSS OF ALL AC POWER ATTACHMENT 1 (Attachment page 1 of 1)

CONTAINMENT ISOLATION VALVES llevisiorl Number:

REV. 2

1.

2.

The followina valves will close on Phase A isolation:

VALVE NAME CCW from excess letdown Hx CCW t o excess letdown Hx Vent header from RCDT Gas analyzer PRT Gas analyzer RCDT Letdown from regenerative HX Letdown oriface control stop valves Make-up to PRT Containment sump pumps to WDS - hold-up tank Instrument air to containment RCDT to WDS - hold-up tank SG blowdown and sampling system Radiation monitor return t o containment Accumulator sampl es Sample - pressurizer steam Sample - pressurizer liquid Sample - RCS loops SJAE to containment Hi-Rad sample system return to containment sump Recirculation pump discharge sample line Accumulator NZ Supply Line Stop VALVE NUMBER(s 1

796, 793 798, 791 1786, 1787 548, 549 1788, 1789 201, 202 ZOOA, 2008, 2OOC 519, 552 1723, 1728 1702, 1705 PCV - 1228 PCV-1214, 1214A PCV-1215, 1215A PCV-1216, 1216A PCV-1217, 1217A PCV-1234, 1235 PCV-1236, 1237 9566, 956H 956A, 956B 956C. 9560 21, 22, 23 MOV-956E, 956F 1229, 1230 MOV-4399, 5132 MOV-YYOA, YYOB 863 The followinq valves will close on Phase B isolation:

VALVE NAME VALVE NUMBER(s1 Component cooling from RCS thermal barrier return MOV-789, FCV-625 Component cooling from RCS motor bearing return MOV-786, 784 Component cooling to RCS pumps MOV-769, 797 Seal water return containment isolation valve MOV - 222 END 27 of 28

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Nunibf r :

i i t l e :

Revision Number':

2 - ECA-O. O LOSS OF A L L AC POWER REV. 2 ATTACHMENT 2

( A t t a c h m e n t page 1 of 1) 4 8 0 V EQUIPMENT LOAD RATINGS 1

U s e t h e f o l ! o w i n q t a b l e t o d e t e r m i n e 48OV e a u i o m e n t l o a d r a t i n q s :

EOUIPMENT 21 SERVICE WATER PUMP 22 SERVICE WATER PUMP 23 SERVICE WATER PUMP 24 SERVICE WATER PUMP 25 SERVICE WATER PUMP 26 SERVICE WATER PUMP PRLR CONTROL HEATERS 2 1 PRZR BU HEATERS 22 PRZR BU HEATERS 23 PRZR BU HEATERS 21 AFW PUMP 23 AFW PUMP 21 FAN COOLER U N I T 22 FAN COOLER U N I T 23 FAN COOLER U N I T 24 FAN COOLER U N I T 25 FAN COOLER U N I T 2 1 S I PUMP 22 S I PUMP 23 S I PUMP 21 SPRAY PUMP 22 SPRAY PUMP 21 RHR PUMP 22 RHR PUMP 21 CHARGING PUMP 22 CHARGING PUMP 23 CHARGING PUMP 2 1 RECIRC PUMP 22 RECIRC PUMP 2 1 CCW PUMP 22 CCW PUMP 23 CCW PUMP 2 1 L I G H T I N G TRANSFORMEF 22 L I G H T I N G TRANSFORMEF 23 L I G H T I N G TRANSFORMEF TURBINE AUX O I L PUMP STATION A I R COMPRESSOR 282 KW 282 KW 485 KW 250 KW 250 KW 316 KW 350 KW 150 KW 299 KW 228 KW 225 KW 93 KW 22 DG BUS 2 A BUS 3 A 282 KW OR 282 KW 282 KW OR 282 KW 485 KW 250 KW 316 KW 228 KW 554 KW 384 KW 250 KW 316 KW 303 KW 1 5 0 KW 150 KW ( N )

225 KW 23 DG BUS 6 A 282 KW 282 KW 2 7 7 KW 384 KW 250 KW 345 KW 350 KW 303 KW 150 KW 299 KW 228 KW 150 KW ( E )

112 KW END 28 o f 28