draft 'reactor pressure flooding emergency procedure.' · 2020. 4. 10. · crosstic...

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''Submittsdt SP Number 29.023.09

: Approved: Revision 'F(Plant Manager) -

,

Effective'Date

RZACTOR' PRESSURE VESSEL FLOODING i |~

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EMERGENCY PROCEDURE { 75h3 Gb E'% ED' iE2 d

1.0 PURPOSE ----

The purpose of this procedure is to flood the RPV using all the availableinjection subsystems.

.2.0 ENTRY CONDITIONS '

This procedure is' entered'from SP 29.023.05 (Rapid RPV Depressurization) if anyof the following occur:

2.1 Temperature near the cold reference leg instrument vertical runs exceedsthe RPV saturation limit.

2.2 RPV water level cannot be determined.

2.3 Suppression chamber pressure exceeding pressure suppression limit..

3.0 OPERATOR ACTIONS

3.1 II[ at least 3 SRV's are open,

THEN close the followingisolation valves.

3.1.1 MSIV's

IB21-A0V-081A1B21-A0V-081B1B21-AOV-081CIB21-A0V-081DIB21-A0V-082A *

IB21-A0V-032B1B21-A0V-082C1B21-A0V-032D,

!

3.1.2 MSL Drain Line Isolation Valves,.

'1B21 MOV-0381821 A0V-088

IB21 !!0V-03)IB21 A0V-08's

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SP 29.023.09 Rev. F g , [d / -

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*- $ 3.1.3 RHR Steam Co dancing Isolaticn Valva

.1E11 MOV-049-

3.1.4 HPCI. Isolation Valvesf

IE41 MOV-041|

1E41 MOV-042 '

IE41 MOV-047 I

1E41 MOV-048,

i

3.1.5 RCIC Isolation' Valves.|

|

1E51 MOV-041 11E51'MOV-042 'l1E51 MOV-0471E51 MOV-048 '

3.1.6 RUCU Isolation Valves

1G33*MOV-031.1G33*MOV-0321G33*MOV-041

3.2 IF RPV water level cannot be2e te rmined,

TREN commence injection intothe RPV with the following,

systems until at least 3 SRV'sare open

MID

RPV pressure 's not decreasing~ i

AND

RPV pressure is at least 100psig above suppression chamberpressure.

,

3.2.1 C.S. 3.2.1 Ref'SP 23.203 01(Core Spray)

3.2.2 Condensate 3.2.2 Ref SP 23.103.01,

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(Condensate)

3.2.3 LPCI 3.2.3 Ref SP 23.204.01(Low Pressure Coolant.

Injection)

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3.2.4 CRD- 3.2.4 Ref SP 23.196 91-(Control Rod Drive)

3.2.5 Reactor Building Service 3.2.5 Ref SP 23.122 91Uater system through (Service Water)service water /recireloop ultimate cooling-water crosstie valvesIP41-HOV-033A,MOV-033B, MOV-033C andMOV-033D .

3.2.6 ECCS connections from 3.2.6. Ref SP 23.105.91the condensate transfer (Condensate Storage'

system and Transfer)

3.2.7 SLC (Test tank or boron 3.2.7 Ref SP 23.123.91tank) (Standby Liquid

Control)

WHEN at least 3 SRV's are open .

AND

RPV pressure is not decreasing

AND

is at least 100 psig abovesuppression chamber pressure

THEN caintain RPV pressureat least 100 psig abovesuppression chamber pressure

,

by throttling injection.

3.3 IJ_ RPV water level can bedetermined,

THEN commence injection intothe RPV with the followingsystems until RPV water levelis increasing.

3.3.1 C.S. 3.3.1 Ref SP 23.203.01(Core Spray)'

3.3.2 Condensate 3.3.2 Ref SP 23.103.01(Condensate)

3.3.3 LPCI 3.3.3 Ref SP 23.204.91(Low PressureCoolant Injgetton)

SP 29.023.09 Rev. F/ / of 8

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3.3.4 CRD 3.3.4 Raf SP 23.196.91, (Control Rod Drive)

3.3.5 -Reactor Building Service 3.3.5 Ref SP 23.122.91water through service (Service Water)water /recire loopultimate cooling watercrosstic valvesIP41-MOV-033A, NOV-033B,-MOV-033C, and MOV-033D

3.3.6 ECCS connections from 3.3.6 Ref SP 23.195.01the condensate transfer (Condensate Storagesystems and Transfer)

.

3.3.7 SLC (Test tank or boron 3.3.7 Ref SP 23.123 91-

tank) (Standby LiquidControl)

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3.4 ]][ suppression chamber pressurecannot be maintained below theprimary containment pressure 'limit (Fig. 2)

THEN initiate the following ,

I systems irrespective of whetheradequate core cooling isassured:

3.4.1 Drywell sprays

3.4.2 ]][ suppression poolwater level is below,

~

(later)

THEN initiate suppressionpool sprays

CAUTION,

; Defeating isolation interlocks may be required to accomplish thefollowing step.

3.5 ]][ suppression chamber pressure 3.5 Refer to SP (later)exceeds the primary containmentpressure limit (Fig. 2),

THEN vent the primary containmentto reduce pressure below the primarycontainment pressure limit.

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SP 29.023.09 Rev. F'/ / of 8 '

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3.6 IF RPV water 1sval cennst bndete rmined,

.THEN fill all RPV levelinstrumentation reference columns,

AND

Continue injection until tem-perature near the. cold referencelag vertical runs is below-212*F

AND

RPV water level instrumentationis available

3.7 IF it can be determined that~

the RPV is filled

0,,R

IF .RPV pressure is at least100 psig above suppressionchamber pressure,

.

THEN terminate all injection'into the RPV

AND

Reduce RPV water level

3.8 IF RPV water level indicationIUi not' restored within themaximum acceptable core uncoverytime (Fig.1) after commencingtermination of injection intothe RPV,

THEN return to step 3.6

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. SP 29.023.09 Rev. F-

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3.9 JF, RPV v2 tar 1 v21 e n be-

de te rmined,.-

AND'

i,

suppression chamber pressure cancan be maintained below the primarycontaine.cnt pressure. linit (Fig. 2),

THEN enter SP 29.023.01(Level Control) ' step 3.2.

4.0 REFERE!!CES

4.1 SP 29.023 01 Level control.

4.2 , SP.23.106.01 Control Rod Drive

4.3' SP 23.203.91 Core Spray Systen.

4.4' SP 23.123.01 Standby Liquid Control

4.5 SP 23.204.01 Low Pressure Coolant Injection

4.6 SP 23.103.01 Condensate System

4.7 SP 23.105.01 Condensate Storage and Transfer System

4.8 SP 23.122.01 Service Water

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draft 'reactor pressure flooding emergency procedure.' · 2020. 4. 10. · crosstic...

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