Text

Rev 15 to Emergency Operating Procedure EOP 8.1, Loca
	ML18051A550
Person / Time
Site:	Palisades
Issue date:	08/15/1983
From:	; CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.)
To:	;
Shared Package
ML18051A543	List: ML18051A542; ML18051A544; ML18051A545; ML18051A546; ML18051A547; ML18051A549; ML18051A550; ML18051A551; ML18051A552;
References
	TASK-15-02, TASK-15-2, TASK-RR EOP-8.1, NUDOCS 8308230404
	Download: ML18051A550 (16)
	v • d • e

ENCLOSURE 2 ATTACHMENT 4 CONSUMERS POWER COMPANY PALISADES PLANT DOCKET 50-255 Emergency Operating Procedure EOP 8.1 "Loss Of Coolant Accident" (Abridged)

August 15, 1983 15 Pages

(--8308230464 830815

'l I

~DR ADOCK 05000255 PDR NU080983-NL01

PALISADES NUCLEAR PLANT EMERGENCY OPERATING PROCEDURE TITLE:

LOSS OF COOLANT ACCIDENT Definition:

Leak rate exceeds capacity of operable charging pumps.

1.0 SYMPTOMS Any one or more of the following symptoms may be present.

a.

Standby Charging Pumps start.

CAUTION Pressurizer level may not be a true indication of PCS fluid inventory.

b.

Pressurizer level abnormal.

(Low or High)

c.

Pressurizer low pressure.

d.

Containment high radiation.

e.

Containment high pressure and/or temperature.

f.

Containment high humidity.

g.

Containment sump level increasing.

h.

Volume Control Tank level decreasing.

i.

Quench Tank high level, temperature or pressure.

j.

High startup rate alarm (Control Rod ejection).

k.

High power level Reactor trip (Control Rod ejection).

2.0 AUTOMATIC ACTIONS

a.

Standby Charging Pumps start.

b.

Reactor trip.

c.

Safety injection actuation.

d.

Containment spray actuation.

e.

Containment isolation.

f.

Auxiliary Feedwater initiated.

Proc No EOP 8.1 Revision 15 Page 1 of 8

g.

Main Steam Isolation Valves close on Containment High Pressure (5.3 psig) -k;'*E-50A, ;':;'*CV-0510, and ;':;'*E-5013, ;':;'*CV-0501.

pa0480-0015a-89-93

3.0 3.1 3.2

.3,3 3.4 3.5 PALISADES NUCLEAR PLANT EMERGENCY OPERATING PROCEDURE TITLE:

LOSS OF COOLANT ACCIDENT IMMEDIATE ACTIONS Trip the reactor; perform EO~ 1 Immediate Actions.

Proc No EOP 8.1 Revision 15 Page 2 of 8 Verify safety injection actuated.

Initiate manually, if PCS pressure is less than or equal to 1605 psia or containment pressure is greater than 5 psig.

At PCS pressure of 1250 psia, or if containment pressure reaches 5 psig, manually actuate containment isolation:

Push the manual initiate push buttons for Containment High Radiation (Left and Right Channels) located on the front of panel ;':;':EC-13.

If containment pressure increases to 5 psig, verify Containment Spray initiated, If necessary, manually initiate Containment Spray.

Attempt to locate and isolate the break if possible:

a.

Isolate letdown line by closing **CV-2009 (outside containment) or

': ;'i"CV-2001 (inside containment).

b.

Verify PORVs and isolation MOVs* closed*.

c.

Isolate PCS sample lines.

(Close ;b':CV-1910 and ;'n':CV-1911).

d.

Check Acoustical Monitor Panel ;':;':EC-51 and Pressurizer Relief Valves Discharge Temperature Indicators for symptoms of pressurizer relief valve leakage.

e.

Check Quench Tank level, pressure and temperature indications normal.

3.6 Check that the Main Steam Isolation Valves have closed on Containment High Pressure (5 psig) -::;':E-50A, -:d:CV-0510 and -::;':£-SOB, ;':;'*CV-0501.

3.7 Place Turbine Generator Turning Gear Motor **K-2 Control Switch in "PULL TO LOCK".

3.8 ACTIVATE SITE EMERGENCY PLAN.

REFER TO SITE EMERGENCY IMPLE}illNTING PROCEDURE EI-1.

4-.0 NOTE:

4.1 NOTE:

SUBSEQUENT ACTIONS Use Attachment 6 as a guide only for subsequent action items.

If break has been isolated and criteria in Attachment 6 are satisfied, proceed as shown in Attachment 6.

Verify all immediate actions have been initiated.

This procedure is to be performed in conjunction with EOP 1.

pa0480-0015a-89-93

4.2 4.3 4.4 PALISADES NUCLEAR PLANT EMERGENCY OPERATING PROCEDURE TITLE:

LOSS OF COOLANT ACCIDENT CAUTION If a SIS signal is received or priamry pressure drops below 1605 psia after the start of a Loss of Offsite Power, the equipment on this checklist shall be started by placing the NOfil1AL SHUTDOw'N SEQUENCER switches to the TEST position and holding them for 45 seconds (until the DBA sequencers timeout).

Proc No EOP 8. I Revision 15 Page 3 of 8 Verify minimum operating safety injection equipment using checksheet.

(Attachment 1)

Verify minimum operating safeguards equipment if Containment High Pressure Trip is activated.

(Attachment 2)

When the containment high pressure signal has cleared, stop containment spray:

a.

Reset the Containment High Pressure Isolation Signal (this will close the iodine removal valves "l;*kCV-0437A and ;b'*CV-0437B).

~

J.

b.

Turn off the Containment Spray Pumps ;'d*P-54A, °ld*P-54B and ;'d*P-54C.

c.

Close the Containment Spray Header Valves ;'d*CV-3001 and ;b'*CV-3002.

4.5 Verify containment isolation.

(Attachment 3) 4.6 4.7 NOTE:

Review diagnostic sheet (Attachment 4) to confirm accident diagnosis.

Attempt to establish and maintain hot and cold leg temperature and PCS pressure within the operating region of the 50°F subcooling saturation curve (Use EOP 1, Attachment 2 or the subcooling curve posted in the Control Room.)

Use all available indications in determining 50°F subcooling, ie, use hot and cold leg temperatures, several incore thermocouples, and PCS pressure.

4.8 If 50°F subcooling cannot be maintained, assume that there have been voids formed within the PCS:

a.

Substantial void formation would be indicated by one or more of the following:

1.

Core outlet temperature readings higher than saturation conditions.

2.

Increased core nT above full power (47°F).

3.

Startup neutron detectors showing erratic indication.

4.

Incore thermocouples showing erratic indication.

pa0480-0015a-89-93

NOTE:

4.9 4.10 NOTE:

PALISADES* NUCLEAR PLANT EMERGENCY OPERATING PROCEDURE TITLE:

LOSS OF COOLANT ACCIDENT

5.

Th increasing or erratic.

6.

T erratic.

c Proc No EOP 8. 1 Revision 15 Page 4 of 8

b.

If void formation exists, increase PCS pressure by ensuring:

1.

All pressurizer heaters on.

2.

Pressurizer Spray Valves closed C-:;-;',CV-1057 and ;'n'<CV-1059 ).

3.

Maximum charging and minimum letdown.

4.

HPSI pumps running ;';;'<P-66A, ;b'*P-66B, and ;'d'P-66C.

A reduction in the subcooled margin is preferable to violation of PCS boundary through excess pressure for existing temperature.

c.

If 50°F subcooling is established but voids remain, vent the Reactor Vessel head in accordance with Step 4.0 (18) of ONP 21.

CAUTION There is a possibility of excessive radiation if a sample line is opened.

Extreme care and caution must be used.

Periodically notify the Chemistry Department to sample containment atmosphere for Hydrogen and Primary Coolant for assessment of fuel damage.

Perform ONP 22 and ONP 11 as necessary.

30 MINUTES AFTER LOCA, STOP BORIC ACID INJECTION VIA THE CHARGING PUl1PS:

a.

Turn selector switch for Charging Pumps **P-55B and **P-55C from auto to manual and turn HS for ;'d*P-55B and ;b'<P-55C to off.

b.

Turn HS for Charging Pump **P-SSA to off.

If there is a low level indicated in the pressurizer, it may be necessary to rack out breaker ;';;'*052-1205 for ;';;'*P-55A in order to stop ;'<;'*P-55A.

c.

Turn HS for Boric Acid Pumps **P-56A and **P-56B to off.

d.

Close Boric Acid Pump Feed Valve **M0-2140 and Gravity Feed Valves

';;'*M0-2169 and id*M0-2170.

e.

Check closed VCT Outlet Valve **M0-2087.

f.

Open SIRW Outlet to Charging Pumps ;'n'*M0-2160.

g.

Run each Charging Pump ;';;'*P-55A, ;';;'<P-55B and ;'d:p-55c for at least five (5) minutes to flush the concentrated boric acid through the lines.

Turn Charging Pumps off or run as needed to control pressure.

pa0480-0015a-89-93

NOTE:

4.11 NOTE:

4.12 NOTE:

PALISADES NUCLEAR PLANT EMERGENCY OPERATING PROCEDUHE TITLE:

LOSS OF COOLANT ACCIDENT Proc No EOP 8.1 Revision 15 Page 5 of 8 If PCS pressure is g:t;"eater than 275 psig, LPSI pumps may be stopped.

Do not attempt to ope-rate LPSI valve "i'd*M0-3008 *when containment sump level is greater thari 85% indicated.

ONE HOUR AFTER LOCA, BEGIN PLANT COOLDOWN:

a.

Open Steam Bypass to Condenser Valve "i'*kCV-0511.

b.

Open Steam Dumps to Atmosphere, Valves *'*"i'*CV-0779, *'d.*CV-0780, "i'd*CV-0781, and "i'd*CV-0782 as necessary to establish and maintain plant cooldown at 75°F per.hour.

Steam flow through two of the four Steam Dumps should be adequate to establish an initial cooldown rate of 75°F per hour.

IF THE RECIRCULATION ACTUATION SIGNAL rs RECEIVED:

CAUTION Prior to receipt of RAS, place handswitches for i**CV-3027 and ""'*CV-3056 (HS-3027A f""'*HS-3056A) to the closed position.~.

a.

Verify the following:

1.

Low Pressure Safety Injection Pumps stop.

(-,'d<P-67A and

.,...,.,P-67B)

2.

Containment Sump Isolation Valves open.

(-,',-,'<CV-3029 and

-,'d*CV-3030)

3.

Safety Injection and Refueling Tank Isolation Valves close.

(**CV-3031 and **CV-3057)

4.

Each running HPSI pump has a minimum flow of at least 30 gpm.

5.

SI Pump Minimum Flow Stop Valves close permissive lights are lighted.

6.

Component Cooling Heat Exchanger Service Water Outlet Valves transfer to alternate supply *'<*'*HIC-0881 and *'d*HIC-0882.

If necessary, dispatch operator to adjust '"'"HIC-0881 and/or ""'<HIC-0882 to maintain less than or equal to 105°F outlet temperature on Component Cooling Heat Exchangers.

pa0480-0015a-89-93

NOTE:

PALISADES NUCLEAR PLANT EMERGENCY OPERATING PROCEDURE TITLE:

LOSS OF COOLANT ACCIDENT

b.

Perform the following:

Proc No EOP 8.1 Revision 15 Page 6 of 8

1.

If each running HPSI pump is not maintaining at least 30 gpm flow, first trip the Charging Pumps one at a time and then the HPSI pumps one at a time until each running HPSI pump is maintaining at least 30 gpm flow or until only one HPSI pump is running.

2.

Place the keys in SIRWT Recirculation Valve handswitches

- HS-3027B and **HS-3056B and place in the closed position.

3.

Monitor the radiation levels in the Auxiliary Building and the ESS sumps for signs of leakage from the SIS equipment.

CAUTION Do not perform Step 4 if contain-ment pressure exceeds 4 psig.

4.

Align the safeguards sump discharge to the containment by closing ;';;';-l-'1V-DRW151 (sump discharge to DWD) and opening

b"CV-1103 and 'l'd>CV-1104 (Containment Sump Drain Valves).

5.

If only one service water pump is running, start another service water pump.

If only one service water pump can be operated, align the fire water system to the service water system by opening 'l'0 "t1V-FP130 and ;';-;';-f1V-FP131.

This action is required to provide sufficient cooling water flow to the Engineered Safeguards Room coolers.

If containment isolation signal is present, refer to Attachment 5.

c.

If reactor pressure is less than 230 psia and the safety injection system is lined up for cold leg injection, perform the following:

CAUTION If only one Containment Spray Pump is running, do not open more than one.Containment Spray Valve Ci';"CV-3001 or ;'d>CV-3002) and one HPSI pump supply valve ('l'>;'*CV-3071 or ;'c;'*CV-3070) at the same time.

1.

If CHP has been reset:

(a)

Check closed **CV-3001 and **CV-3002.

(b)

Start **P-54A, **P-54B or **P-54C.

(c)

Open **CV-3071 to supply cooled water from the Shutdown Cooling Heat Exchangers to the suction of ;'d*P-66A.

pa0480-0015a-89-93

4.13 NOTE:

PALISADES NUCLEAR PLANT EMERGENCY OPERATING PROCEDURE TITLE:

LOSS OF COOLANT ACCIDENT Proc No EOP 8.1 Revision 15 Page 7 of 8 (d)

Open ;'d*CV-3070 to supply cooled water from the Shutdown Cooling \\Heat Exchangers to the suction of ;'d*P-66B and

-ld*P-66C:*

2.

If the CHP signal is present:

(a)

If two or more Containment Spray Pumps are running.

(b)

Open ;';-;'*CV-3071 to supply cooled water from the Shutdown Cooling Heat Exchangers to the suction of **P-66A.

(c)

Open **CV-3070 to supply cooled water from the Shutdown Cooling Heat Exchangers to the suction of -/d*P-66B and

h'*P-66C.

TWO HOURS AFTER LOCA, ISOLATE OR VENT SAFETY INJECTION TANKS:

In the event of a large LOCA, the tanks will already be empty and this step will be unnecessary.

a.

Isolate Safety Injection Tanks **T-82A, **T-82B, **T-82C and

',;'*T-82D.

o,t j_

1.

Unlock and close breakers **052-2229 (MCC-22), **052-2429 (MCC-24), -/;-;'*052-2129 (l'lCC-21), and -/;-;'*052-2329 (MCC-23).

2.

Close ;'*-l*I-10-3041, ;'*-l*M0-3045, ;';;'*M0-3049 and ;'d*l'I0-3052.

b.

If unable to isolate one or more Safety Injection Tanks, vent the unisolated SI Tanks as follows:

1.

Open Vent Valve ;'d>CV-3067, ;'d*CV-3065, ;'d>CV-3063 or ;'r;'>CV-3051 on the tank to be vented **T-82A, **T-82B, **T-82C or **T-82D.

2.

This will allow the nitrogen to flow into the Clean Waste Receiver Tanks **T-64A, **T-64B, **T-64C or **T-64D and blow at least one of their rupture discs and pass into the containment atmosphere.

3.

Repeat Steps (1) and (2) for each unisolated tank until all are vented.

4.. 14 SIX HOURS AFTER LOCA, PROCEED AS FOLLOWS:

a.

With PCS pressure less than 160 psia, align HPSI for hot and cold leg injection for long term cooling: *

1.

Close **M0-3080, then open **M0-3082.

2.

Close ;'d>M0-3081, then open -,',;'*M0-3083.

pa0480-0015a-89-93

NOTE:

PALISADES NUCLEAR PLANT EMERGENCY OPERATING PROCEDURE TITLE:

LOSS OF COOLANT ACCIDENT Proc No EDP 8.1 Revision 15 Page 8 of 8 Verify flow to hot leg Nwnber 1 on ;'d*FI-0316A and/or ;'d*FI-0317A.

';;'*FI-0316A will indicate hot leg injection from HPSI Pwnp ;';;'*P-66A, and

'd*FI-0317A will indicate hot leg injection from HPSI Pump ;'d*P-66B or

';;'*P-66C.

Verify flow to cold'legs on ;'d*FI-0308, ;'""FI-0310, ;';;'*FI-0312, and ;'d*FI-0313.

Total flow to hot leg Number 1 should approximately equal total flow to cold legs.

3.

Procedure ended.

b.

With PCS pressure greater than or equal to 160 psia, place the Shutdown Cooling System in operation:

1.

Verify at least 50°F subcooling will be maintained at entry pressure for Shutdown Cooling using loop cold leg temperatures and several incore thermocouples.

2.

Enter shutdown cooling per SOP 3:

When using SOP 3, ignore any reference to Primary Coolant Pumps; any reference to pressurizer spray is to be considered as auxiliary spray.

(a)

If necessary, throttle or secure HPSI and/or charging pump flow to maintain pressurizer level.

(b)

If voiding is apparent during depressurization (ie, pressurizer level is erratic), stop auxiliary spray to the pressurizer and vent noncondensibles from the reactor vessel head and/or the pressurizer in accordance with Step 4.0 (18) and (19) of ONP 21.

(c) If the **PS-0104 interlock prevents the opening of either

'd*M0-3015 or ;';;'*~10-3016, *refer to Attachment 7.

If there is a high radioactivity level in the Primary Coolant System, circulation of this fluid in the Shutdown Cooling System may result in high area radioactivity readings in the Auxiliary Building.

The activity level of the PCS should be determined prior to initiating Shutdown Cooling System flow.

3.

If shutdown cooling cannot be established:

(a)

Maintain Steam Generator heat removal, using the Steam Bypass to Condenser or the Steam Dumps to Atmosphere, while attempting to establish shutdown cooling.

(b)

If heat removal by Steam Generators can no longer be maintained, open PORVs and block valves **M0-1042A,

- M0-1043A, **PRV~l042B and **PRV-1043B.

Continue cold leg injection with at least one HPSI pump.

Once Shutdown Cooling entry conditions are met, close the PORVs and their block valves ;';;"M0-1042A, ;';;';MV-1043A, ;';;"PRV-1042B and **PRV-1043B and establish shutdown cooling as described in Step 4.14.b.

pa0480-0015a-89-93

CHECKSHEET FOR MINIMUM SAFEGUARDS Proc No EOP 8.1 Revision 15 Page 1 of 1 Equipment fed from bus C and/or D/G 1-1 (**K-6AG) 2400V

1.

1 HP Safety Injection Pump running **P-66B -----

.2.

1 LP Safety Injection Pump running **P-67B -----

3.

1 Component Cooling Water Pump running **P-52A ----- or **P-52C -----

4.

1 Service Water Pump running **P-7B -----

5.

1 Auxiliary Feedwater Pump running **P-8A -----

.. 480V

6.

1 Charging ~

- P-SSC -----

7.

4 HP Safety Injection Valves open

- M0-3007'

- M0-3009

- M0-3011

- M0-3013

8.

2 LP Safety Injection Valves open **M0-3008 ----- **M0-3010 -----)m

9.

2 Boric Acid gravity feed stops open **M0-2169 *----- **H0-2170 ___

.....;fA.=. 0 u

10.

1 Containment Air Cooler recirculation fan **V-4A -----

11.

Volume Control Tank Outlet Isolation Valve closed **M0-2087 OR E qui pmen t fed from bus D and/or D/G 1-2 (**K-6BG) 2400V z

0

12.

1 HP Safety Injection Pump running **P-66A ----- or **P-66C -----1~-

13.

1 LP Safety Injection Pump running **P-67A -----

14.

1 Component Cooling Water Pump running **P-52B -----

15.

1 Service Water Pump running **P-7A or **P-7C 480V

16.

2 Charging Pumps **P-SSA and **P-SSB -----

17.

4 Redundant HP Safety Injection Valves open

- M0-3062

- M0-3064

- M0-3066

- M0-3068

18.

2 LP Safety Injection Valves open **M0-3012

- M0-3014

<(

~ z ll'.il:3

19.

1 Boric Acid Pumped Feed Stop Valve open **M0-2140 -----

20.

1 Boric Acid Pump running **P-56A -----

21.

3 Containment Air Cooler Recirculation fans running

'f..-kV-lA

'f..~V-2A

- V-3A Completed By:

I Signature Date Reviewed By:

I pa0480-0015b-89-93 Shift Supervisor Date

I CHECK SHEET FOR MINIMUM SAFEGUARDS WITH CONTAINMENT HIGH PRESSURE

1.

Complete Attachment 1.

Proc No EOP 8.1 Revision 15 Page 1 of 1

2.

2 Containment Spray Valves open **CV-3001 and **CV-3002

3.

4 Containment Air Cooler High Capacity Service Water Valves open

- CV-0861

- CV-0864

- CV~0867

4.

2 Iodine Removal Valves (open after 1 minute time delay)

- CV-0437A

- CV-0437B

~

and From 2400 V bus lC and/or Diesel Generator 1-1

5. 2 Containment Spray Pumps **P-54B

- P-54C

~

or From 2400 V bus ID and/or Diesel Generator 1-2

6.

1 Containment Spray Pump ~""*P-54A -----

Completed By:

I Signature Date Reviewed By:

I Shift Supervisor Date pa0480-0015c-89-93

CONTAINMENT ISOLATION CHECKLIST

Proc No EOP 8.1 Revision 15 Page 1 of 2 All containment isolation CV's have latching circuits, the handswitches have to be placed to closed position prior to open position.

VALVE NO.

- CV-1808

- CV-1814

- CV-1806

- CV-1501 "1..-kCV-1101

- CV-1807

- CV-1813

-1.-kCV-1805

- CV-1502 "1.."*CV-1102

'fr:.cv-1064

- CV-1103

":.cv-0911

- CV-1002

- CV-1036

- CV-1044

- CV-1104

- CV-0940

- CV-1007

- CV-1038

- CV-1045

":*cV-1065 pa0480-0015d-89-93 DESCRIPTION Containment Purge Exhaust Isolation Valve Air Room Supply Containment Purg_e Exhaust Isolation Valve Containment Htg Steam Return Containment Vent Hdr Containment Purge Exhaust Isolation Valve Air Room Supply Containm~nt Purge Exhaust Isolation Valve Conta1nment Htg. Steam Return Containment Vent Hdr Clean Waste Receiver Tanks Vent Containment Sump Drain (SIS or CHR)

Component Cooling water Return Primary System Drain Tank Outlet Clean Waste Receiver Tanks Recirc Outlet Clean Waste Receiver Tanks Outlet Containment Sump Drain (SIS or CHR)

Component Cooling Water Return Primary Syst~m Drain Tank Outlet Clean Waste Receiver Tanks Recirc Outlet Clean Waste Receiver Tanks Outlet Clean Waste Receiver Tanks Vent Steam Generator -1..~*E-SOB Bottom Blowdown Completed By:

I I

CLOSED Signature Time Date

VALVE NO

- CV-0771

- CV-0767 m':CV-0768

- CV-1503

- CV-0738

- CV-0739

- CV-0910

-!.-kCV-0939

- CV-1004

-.!.-kCV-1037

"!.'"*CV-1358

-:.-::cv-1001

- CV-1910

'l."*CV-1911

-k-kCV-2009

'1.-A-CV-2083

-k-.':CV-0155

-l:-kCV-0501

- CV-0510 pa0480-0015d-89-93 CONTAINMENT ISOLATION CHECKLIST DESCRIPTION Steam Generator -:.~~E-50A Bottom Blowdown Steam Generator **E-50A Bottom Blowdown Steam Generator **E-50B Bottom Blowdown Containment Htg Steam Inlet Steam Genterator **E-50B Top Blowdown Steam Generator **E-50A Top Blowdown Component Cooling Water Inlet (SIS)

Shield Cooling Surge Tank Fill Clean Waste Receiver Tanks Inlet Clean Waste Receiver Tanks Recirculation Inlet Nitrogen Supply Primary System Drain Tank Recirculation Inlet Primary System Sampling Primary System Sampling Letdown Stop Controlled Bleedof f Demineralized Water Supply Main Steam Isolation Valve (on CHP)

Main Steam Isolation Valve (on CHP)

Completed By:

I Signature Pages 1 and 2 Reviewed By:

I Shift Supervisor Proc No EOP 8.1 Revision 15 Page 2 of 2

CLOSED I Ti.

Date I

Date Time

Proc No EOP 8.1 Revision 15 Page 1 of 1 ACCIDENT IDENTIFICATJON LARGE BREAKS PRESSURIZER -PRESSURE DECR~ASING*RAPIDLY I

I I

OBSERVE STEAM I

GENERATOR PRESSURES__.

ABNORMALLY LOW IN ONE OR BOTH STEAM GENERATORS i

STEAM LINE RUPTURE 1

J OBSERVE CONTAINMENT PRESSURE I INCREASING I I

STEAM BREAK INSIDE CONTAINMENT J,

pa0480-0015e-89-93 NORMAL

'I STEAM BREAK I

OUTSIDE CONTAINMENT I SEE EOP 7 i

- ">C:

. i\\~*

' STEAM GENERATOR PRESSURES I INITIALLY NORMAL OR RISING LOCA OR S.G. TUBE RUPTURE OBSERVE CONTAINMENT PRESSURE RADIATION AND SUMP LEVEL

- -;:--*-I INCREASING i I-NORMAL II

..L ~.

LOCA p I SEE EOP 8. 1 I J

I VERIFY HIGH !

RADIATION 1

AIR EJECTOR DISCHARGE

\\

~

l I SEE EOP 8

2 I

I I

iJlraE.ll.

l.

n S.

s.

0.

F c

0

0.

-L

- A N

T.

A

... C CD r-------

llE&CTDR TR IPPEDT I

TES I

ID l

. I TRIP RElCTDI I i

@1 IDDS INSERTED?

I YES I

ID

!TRIP CLUTCH p/SJ J

CD I SAFETY I IJECTI OM lCTUlTEDT I

YES I

ID IM&MUlLLY IM ITllTEI CD I TRIP &LL PCP CD I CDllTllMMEllT ISDUTIDM *SIGMlLT I

YES I

MD l

1 MIN...

I I SDLlTE llREU.,

.------i_I( CAUSE CORRECTED)!

I

!REACTOR SHUTDDllRtl I

YES I MO 1-I PZR.. 20~ ' l I YES I

MO 1--

lna.. 1100 rsnl I

YES I MD 1-I *nv c sqs 0 t l I

YES I MO r-

11111;-Dl"~;t-?~

(lTTlCH. I)

YES I

ID 1

MlMUlLLY I STlRT EQUIP.

l I C.B. HI PRESS7 I YES l

llD I

I NIM.OP ES.T ATT.lCH. 2.

TES I 110 I

MANUALLY I START EQUIP.

I I EXIT THIS I i-..--..i PROCEDURE

., GD TD ONP-21

IES I.,

l I

RlllET C.B.

ISOLA.TIOll SIGNAL l

'l'llRll OFF CORTAIRMESr SPRAY POIPS CLOSE co~

SPRAY llEAllER VALVE; I

COJ:DillMEllT ISOL.

(AftACB. 3)

IES 10 l

(5)

MAllllALLY ISOU.TE IIF PCS <1250 PSIA OH C.P.>5PSIG 1

IES 110

PROC.

c I

I MUUlLLY.

llllTIUE 1:

1250 PSI J

f PCS... so0 sua-I COOLED?

INFORMATION COPY D

E N

T EDP_

8.1 CY I BREU ISDUBLE?

I YES I

ID l

ACTIVATE : s I TE I EMERGENCY PLU I

I I

YES I no 1--

'~-------""RESET SIS I

... PROCEDURE.STEP..MUMBERS.

RESTART PCP'S I

(j') I PCS 50- s-cl I IES IO I 1

al) RAISE Pm H1ESS PZH B'l'llS m PZH SPRAY ~

MAX CBC.

llillu:mJllS 3 BPSI Pp cm.

.1 vom PORIWl'IOI EXISTS!

I BEAD 1

. G SAMPLE PCS

C.B. AIR I

f

(!)

PCS 50* S-C n:s llO

(!!)RAISE PZR ~*

PZR BTllS 011 P'LR SPRAY OTr MAX CHG.

Miii :t.mXlllll.

3 BPSI Pp Oii.

vom rcRMA1'IO!

EXISTS?

Q SAMPLE PCS

C.B. AIR

30.

r.mt.

'"p-z""1:-:P-::R-::E-=s-=s-..

-::2-::1-::i5 YES NO SECURE BORIC ACID CHARGING LPSI SECURE BORIC ACID CHARGING JIOTE:-RAS. CAN. OCCUR AT ALMOST ANYTIME DEPEHDIHG OH THE BREAK SIZE AHO THE.

HUMBER OF PUMPS RUHHIHG COMM EH CE 6!!_

rnm_

PCS COOLING e 15°F/HR RAS?

no no VERIFY:

LPSl-Pps TRIP C.8. SUMP VLVS OPEN; SIRWT VLYS I CLOSE; 30 GPM FLOW

/HPSI Pp; MINIFLOW CY'S CLOSE; CC HX OUT

.1os 0 H5 30278 '

HS 3056B TO CLOSE; ROUTE ESS ROOM SUMPS T.C.B *

. (ATTACH 5)

INFORMATION COPY 2 HOURS 6 llOURS 0

ISOLATE OR VDiT 1--------.:!;@~l~PZ:.:::R_:PRESS..::::;::...:<::1::6:.o.rr---i-:S~D===CL:"G'-10'-P E:.:R';A~B..::L.=..iE SI TANKS n:s no.

YES HO ESTABLISH HOT A!ID COLD r.m' IIIJECl"IOll VERIFJ' l"LOll TO HOT AlllJ COLD LECS THIS PROCEDU!ll!:

COMPLETI!:

EST. SD CLG. PER SOP 3. THIS PROCEDURE COMPLETE HO Pree 110 EDP 8.1.

ReTis1011 15 Page lot l OPEN BOTH PZR PORV 1 S RUN

~ I HPS I Pp

ML18051A550

Text

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