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NRC Review > EOPs > Flashcards

EOPs Flashcards

1
Q
  • 0POP05-EO-FRZ2 Response to Containment Flooding*
    • *

What conditions will allow entry into 0POP05-EO-FRZ2?

A

Containment Water Level ≥ 69”

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2
Q
  • 0POP05-EO-ES05 Natural Circulation C/D w/ Loss of Letdown*
    • *

How is the depress performed while in 0POP05-EO-ES05?

A

PZR Level < 50%:
Aux Spray
PZR PORV

  • PZR Level ≥ 50%:*
  • *Head Vents**
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3
Q
  • 0POP05-EO-EC33 SGTR w/o PZR Pressure Control*
    • *

How does Addendum 6 in 0POP05-EO-EC33 restore letdown with a low PZR level?

A

Sends Operator to ASP to open LCV-0465, LCV-0468, and FV-0011

Bypasses low PZR Level Letdown Isolation (17%)

Note:
LCV-0468 and FV-0011 transfer switches on EAB 60’. LCV-0465 is on EAB 10’.

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4
Q
  • 0POP05-EO-FRC1 Response to Inadequate Core Cooling*
    • *

What are the major actions of 0POP05-EO-FRC1?

A

Start 3 SI trains
RNO will start both CCPs w/ Max Charging
(Will substitute PDP if CCP not available)

  • Done if One (1) SG > 14% [34%] OR > 576 gpm AFW Flow*
  • *Depress intact SGs < 306 psig**
  • Will inject Accumulators / LHSI pumps*
  • *Depress intact SGs to atmospheric**
  • Maximize SI Flow*

Start RCPs

Open PZR PORVs

Open Rx Head Vents

  • *Depress intact SGs to atmospheric**
  • Do not care about SG Level / AFW anymore.*
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5
Q
  • 0POP05-EO-E010 Loss of Rx or Secondary Coolant*
    • *

At what containment pressure is containment spray secured?

A
  • *6.5 psig**
  • Need TSC Approval*

May be required for up to 6.5 hrs after DB LOCA to reduce Iodine for 30 day habitability of control room and TSC.

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6
Q
  • 0POP05-EO-ES01 Rx Trip Response*
    • *

If the initiating event of the Rx Trip was a loss of feedwater, what is the time critical action in 0POP05-EO-ES01?

A

At least 3 AFW pumps required to be in service within 15 mins of Rx Trip

Prevents PZR overfill

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7
Q
  • 0POP05-EO-EC21 Uncontrolled Depress of all SGs*
    • *

While in 0POP05-EO-EC21, what must the operator limit AFW flow / SG if you exceed the following parameters?

  • RCS CDR: ≥ 100 ˚F/hr
  • SGNR Level: ≤ 14% [34%]
A

100 gpm

Not required to enter 0POP05-EO-FRH1 if due to operator actions.

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8
Q
  • 0POP05-EO-FRH1 Response to Loss of Secondary Heat Sink*
    • *

What conditions will allow entry into 0POP05-EO-FRH1?

A

SGNR ≤ 14% [34%] in ALL SGs
AND
Total AFW Flow ≤ 576 gpm

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9
Q
  • 0POP05-EO-FRC3 Response to Saturated Core Cooling*
    • *

0POP05-EO-FRC3 should not be entered if you are in what procedure?

A
  • *0POP05-EO-EC32**
  • SGTR w/ LOCA - Saturated Recovery*

EC32 puts you in saturated conditions and FRC3 tries to fix it. Counterproductive….

Note:
Procedure has you get SI / CCP flow and isolate RCS vent paths.

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10
Q
  • 0POP05-EO-FRP1 Response to Iminent BFPL*
    • *

When do you stop the depress in 0POP05-EO-FRP1?

A

PZR Level > 70% [50%]
OR
Subcooling < 45 ˚F [55 ˚F]
OR
RCS Pressure < 73 psig

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11
Q
  • 0POP05-EO-EC02 Loss of All AC Power w/ SI Required*
    • *

What procedure does the operators enter when they have completed 0POP05-EO-EC02?

A

0POP05-EO-EO10
Loss of Rx or Secondary Coolant

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12
Q
  • 0POP05-EO-FRZ2 Response to Containment Flooding*
    • *

What sources of water are unaccounted in the containment floodup calculation?

A

CCW

RCB Chilled Water

Rx Makeup Water

FPS

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13
Q
  • 0POP05-EO-ES01 Rx Trip Response*
    • *

How long does the operator have to restore CCW to the RCFCs following a LOOP?

A

30 Minutes

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14
Q
  • 0POP05-EO-FRC3 Response to Saturated Core Cooling*
    • *

What conditions will allow entry into 0POP05-EO-FRC3?

A

Subcooling ≤ 35 ˚F [45 ˚F]
AND
CETs < 708 ˚F

RVWL doesn’t really matter in this case.

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15
Q
  • 0POP05-EO-FRS1 Response to ATWS*
    • *

What conditions will allow entry into 0POP05-EO-FRS1?

A
  • Red Path:*
  • *Extended Range Flux ≥ 5%**
  • Orange Path:*
  • *Extended Range Flux ≥ 5x10-6 % w/ + SUR**
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16
Q
  • 0POP05-EO-FRZ1 Response to High Containment Pressure*
    • *

What conditions will allow entry into 0POP05-EO-FRZ1?

A

Containment Pressure ≥ 9.5 psig

≥ 56.5 psig is a red path.

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17
Q
  • AFW Requirements*
    • *

What procedures need ≥ 2 SGs to cooldown the plant?

A

Two (2) SGs:
0POP05-EO-ES05
Natural Circ C/D w/o Letdown

0POP05-EO-EO20
Faulted SG Isolation

0POP05-EO-EC21
Uncontrolled Depress of All SGs

0POP05-EO-ES31/32/33
Post-SGTR Cooldown Using Backfill / Blowdown / Steam Dumps

0POP05-EO-EC31/32/33
SGTR w/ Loss of Rx Coolant - Subcooled (31) / Saturated (32) Recovery Desired
SGTR w/o PZR Pressure Control (33)

  • *0POP05-EO-FRZ1**
  • Response to High Containment Pressure*

Three (3) SGs:
0POP05-EO-ES01**
Rx Trip Response

Note:
Need within 15 mins if Rx trip was due to loss of feedwater.

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18
Q
  • 0POP05-EO-EO00 Rx Trip or SI*
    • *

What is the purpose of verifying the turbine tripped?

A

Prevents an uncontrolled C/D

Note:
This is the basis for all step 2 substeps as well

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19
Q
  • 0POP05-EO-EC21 Uncontrolled Depress of all SGs*
    • *

What are your RCP trip criteria while in 0POP05-EO-EC21? (Unique Criteria)

A

HHSI - At least 1 Running
AND
Primary / Secondary ∆P - < 164 psid [336 psid]

  • RCS Pressure will drop due to uncontrolled depress of S/Gs (Cooldown). Cannot use normal 1430 psig.
  • If primary with ∆P requirement, that is indicative of a LOCA.

Note:
Procedure will have you go to 0POP05-EO-EO10 if RCS Pressure ≤ 415 psig.

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20
Q
  • 0POP05-EO-ES05 Natural Circulation C/D w/ Loss of Letdown*
    • *

Why does 0POP05-EO-ES05 have the operator re-align the CCP suction to the BAT tanks?

A

BAT tanks are higher boron concentration (7000 ppm) than RWST (2800 ppm)

Get more boron for less inventory. (No letdown)

Note:
BAT tank must have > 2500 gal

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21
Q
  • 0POP05-EO-FRZ3 Response to High Rad Levels*
    • *

What conditions will allow entry into 0POP05-EO-FRZ3?

A

Containment Radiation ≥ 2100 R/hr

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22
Q
  • 0POP05-EO-EC33 SGTR w/o PZR Pressure Control*
    • *

What is the SI termination criteria for 0POP05-EO-EC33?

A
  • RCS Subcooling:*
  • *> 35 ˚F [45 ˚F]**

Secondary Heat Sink:
Total AFW Flow > 576 GPM
OR
SGNR in ≥ TWO (2) SGs > 14% [34%]

  • RCS Inventory:*
  • *RVWL Plenum ≥ 85%**

Ruptured SG Level:
Rising in Uncontrolled Manner
OR
Off Scale High

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23
Q
  • 0POP05-EO-EC21 Uncontrolled Depress of all SGs*
    • *

When will 0POP05-EO-EC21 have the operator go back to 0POP05-EO-EO20?

A

If any SG pressure rises except during SI termination in Steps 19/20

Note:
Unlike 0POP05-EO-EO30 CIP action, do not have to start SI pumps for 0POP05-EO-EO20 transition.

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24
Q
  • 0POP05-EO-FRS1 Response to ATWS*
    • *

If the faulted SG was isolated in 0POP05-EO-FRS1, does the operator need to transtition to 0POP05-EO-EO20 once 0POP05-EO-FRS1 is complete?

A

No

0POP05-EO-FRS1 has the exact same steps and 0POP01-ZA-0018 allows you to skip transitioning to 0POP05-EO-EO20.

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25
Q
  • 0POP05-EO-ES05 Natural Circulation C/D w/ Loss of Letdown*
    • *

How is PZR Level maintained < 90% while in 0POP05-EO-ES05?

A

Cycle Head Vents to maintain PZR LVL 85% - 90%

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26
Q
  • 0POP05-EO-FRP1 Response to Iminent BFPL*
    • *

What is the SI termination criteria in 0POP05-EO-FRP1?

A

Subcooling > 85 ˚F [95 ˚F]

No RCPs: RVWL Plenum ≥ 20%

RCPs: RVWL Plenum ≥ 85%

Reinitiation:

  • Subcooling ≤ 35 ˚F [45 ˚F]
  • RVWL Plenum < 20%
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27
Q
  • 0POP05-EO-EC32 SGTR w/ LOCA - Saturated Recovery*
    • *

What are the SI reinitiation criteria for 0POP05-EO-EC32?

A

CETs Rising
OR
RVWL Plenum < 85%

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28
Q
  • 0POP05-EO-ES03 Natural Circulation C/D with Voids*
    • *

What CDR and Subcooling is the operator limited to in 0POP05-EO-ES03?

A
  • CDR:*
  • *< 100 ˚F/hr**
  • Subcooling:*
  • *> 55 ˚F**
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29
Q
  • 0POP05-EO-ES02 Natural Circulation C/D*
    • *

How many CRDM Vent Fans and Rx Cavity and Support Trains does 0POP05-EO-ES02 have the operators try to start?

A
  • CRDM Vent Fans:*
  • *All 3 Vent Fans**
  • Rx Cavity & Support Trains:*
  • *1 Train**

Helps prevent void formation in the Head.

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30
Q
  • 0POP05-EO-EO00 Rx Trip or SI*
    • *

Above what RCS pressure can you secure LHSI pumps?

A

> 415 psig

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31
Q
  • 0POP05-EO-ES02 Natural Circulation C/D*
    • *

What is your CDR in the RCS Cold Legs limited to in 0POP05-EO-ES02?

A
  • Normally:*
  • *100 ˚F/hr**

≥ 1 Inactive OR NOT intact SGs:
15 ˚F/hr - 20 ˚F/hr

  • NO CRDM Vent Fans running:*
  • *70 ˚F/hr**

CDR must be ≥ 15 ˚F/hr to ensure AFWST lasts until RCS Temperature ≤ 350 ˚F (RHR Conditions)

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32
Q
  • 0POP05-EO-ES01 Rx Trip Response*
    • *

What are the dilution paths that need to be isolated in 0POP05-EO-ES01?

A

BTRS

Letdown Demins

RMW Pumps

RMW Non-Essential Header Isolation Valves

BTRS is not listed as a dilution path in 0POP05-EO-FRS1 (ATWS) and 0POP05-EO-FRS2 (Response to Loss of Core S/D).

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33
Q
  • 0POP05-EO-FRZ3 Response to High Rad Levels*
    • *

What is the temperature limit on the containment carbon units?

A

200 ˚F

Only 1 fan / train should be placed in service.

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34
Q
  • 0POP05-EO-ES03 Natural Circulation C/D with Voids*
    • *

What are the major action categories of 0POP05-EO-ES03?

A

Try to Start RCP

  • *C/D and Depressurize**
  • Must control pressure to maintain RVWL Plenum ≥ 85%*

Lockout SI

Place RHR in Service

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35
Q
  • 0POP05-EO-FRP1 Response to Iminent BFPL*
    • *

If all SGs are faulted while performing 0POP05-EO-FRP1, how does the procedure have you control AFW?

A

100 gpm / SG

Protects the SG tubes

Note:
Same as 0POP05-EO-EC21 Uncontrolled Depress of All SGs.

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36
Q
  • 0POP05-EO-E010 Loss of Rx or Secondary Coolant*
    • *

At what H2 concentration are the H2 Recombiners placed in service?

A

0.5% ≤ H2 < 4%

  • ≥ 4% must consult with TSC
  • Place 1 in service and 1 in standby

Note:
Must be placed in service within 30 mins (FSAR)

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37
Q
  • 0POP05-EO-EO00 Rx Trip or SI*
    • *

What are unique about the safety grade solenoids for the MSIVs?

A

The are energize to actuate

Most safety grade solenoids are de-energize to actuate.

Note:
That is why we have to fail air to the MSIVs and MSIBs if they fail to shut.

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38
Q
  • 0POP05-EO-EC33 SGTR w/o PZR Pressure Control*
    • *

Why does the first step in 0POP05-EO-EC33 check if ruptured SGNR Level < 87% [60%]?

A

No way to lower RCS pressure.

RCS filling Ruptured SG.

Sends you to Securing SI step so Ruptured SG doesn’t go solid.

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39
Q
  • 0POP05-EO-ES02 Natural Circulation C/D*
    • *

What subcooling should be maintained in the upper head if you have < 2 CRDM vent fans while performing a C/D in 0POP05-EO-ES02?

A

10 ˚F - 20 ˚F Subcooling

Controlled by cycling Rx Vessel Head Vent Valves.

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40
Q
  • 0POP05-EO-ES31 Post SGTR C/D using Backfill*
    • *

How does the operator control AFW to cool off the ruptured SG in 0POP05-EO-ES31/32/33 and 0POP05-EO-EC31/32/33?

A

Feed Ruptured SG to a SGNR Level of 82% [55%]

Allow SGNR Level to Lower to 25% [34%]

Repeat

Will secure AFW Flow to ruptured SG if not needed for C/D when:

  • SG Pressure Rapidly Lowering (Faulted)
  • Ruptured SG Pressure ≥ 1235 psig (About to lift PORV @ 1260 psig)
  • Ruptured SG Pressure ≤ 306 psig AND SGNR > 14% [34%]****

Note:
Last criteria is present in ES31/32/33, and EC33 only. The first 2 criteria are present in all 6 procedures. (ES31-33 and EC31-33)

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41
Q
  • 0POP01-ZA-0018 EOP User’s Guide*
    • *

What is the definition of an active SG?

A

SGNR Level ≥ 14 % [34%]

OR

AFW Flow ≥ 310 GPM

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42
Q
  • 0POP05-EO-FRP1 Response to Iminent BFPL*
    • *

After you complete your 1 hour soak in 0POP05-EO-FRP1, what is your CDR limit?

A

50 ˚F/hr

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43
Q
  • 0POP05-EO-ES13 Transfer to CL Recirc*
    • *

When can FRPs be implemented when in 0POP05-EO-ES13?

A

Once steps 1-6 are complete

Minimum required to verify proper switch over to CL Recirc.

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44
Q
  • 0POP05-EO-ES05 Natural Circulation C/D w/ Loss of Letdown*
    • *

What will the operator do if letdown or excess letdown is restored while in 0POP05-EO-ES05?

A

Transition to 0POP05-EO-ES02 Natural Circ C/D

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45
Q
  • 0POP05-EO-EO30 SG Tube Rupture*
    • *

How many SGs are needed for C/D while in 0POP05-EO-EO30?

A

One (1) SG

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46
Q
  • 0POP05-EO-FRH2 Response to SG Overpressure*
    • *

What conditions will allow entry into 0POP05-EO-FRH2?

A
  • *Pressure in ≥ 1 SG ≥ 1325 psig**
  • Highest SG Safety*
47
Q
  • 0POP05-EO-EC01 Loss of All AC Power w/o SI Required*
    • *

How many CCW trains are required to provide cooling to SFP?

A

Two Trains

  • First train for RCS. Second Train for SFP.
  • Must consult with TSC if only one train available.
48
Q
  • 0POP05-EO-EC11 Loss of Emergency Coolant Recirc*
    • *

What are the SI Termination criteria in 0POP05-EO-EC11?

A

RVWL Plenum Level:
NO RCPs: ≥ 20%
RCPs: ≥ 85%

AND

Subcooling > 85 ˚F [95 ˚F]

If you cannot secure, establish minimum SI flow per Addendum 5.

49
Q
  • 0POP05-EO-FRS1 Response to ATWS*
    • *

How much AFW Flow is required if SGNR Level is ≤ 14% [34%] in ALL SGs while in 0POP05-EO-FRS1?

A

1080 gpm

50
Q
  • 0POP05-EO-FRP1 Response to Iminent BFPL*
    • *

Why does the first step in 0POP05-EO-FRP1 check for a large break LOCA?

A

Purpose of this procedure is to prevent a LOCA

No point in performing this procedure

  • Step has you check to see of LHSI is injecting.
    • < 415 psig AND > 500 gpm flow
51
Q
  • 0POP05-EO-EC01 Loss of All AC Power w/o SI Required*
    • *

When the operators finish with 0POP05-EO-EC01, what procedure will they transition to?

A

With RCP:
0POP03-ZG-0007
Plant Cooldown

With No RCP AND Letdown:
0POP05-EO-ES02
Natural Circulation Cooldown

With No RCP AND NO Letdown:
0POP05-EO-ES05
Natural Circulation Cooldown w/o Letdown

52
Q
  • 0POP05-EO-EC00 Loss of All AC*
    • *

How long can the unit be without AC power before it is considered an ELAP?

A

4 hrs

53
Q
  • 0POP05-EO-ES33 Post-SGTR Cooldown Using Steam Dump*
    • *

How does the operator dump steam from the ruptured SG in 0POP05-EO-ES33?

A
  • Condenser Available:*
  • *Throttle open MSIBs of intact SGs**

Use Steam Dumps to lower ruptured SG Pressure to < 332 psig

  • Condenser NOT Available:*
  • *Use ruptured SG PORV to lower ruptured SG Pressure to < 332 psig**

Using SG PORV is a unmonitored release to the public (Last Resort)

54
Q
  • 0POP05-EO-FRH1 Response to Loss of Secondary Heat Sink*
    • *

What parameters are checked to determine if a secondary heat sink is required?

A

RCS Pressure > Non-Faulted SG Pressure

  • *WR HL > 350 ˚F**
  • RHR Conditions*
55
Q
  • 0POP05-EO-FRC1 Response to Inadequate Core Cooling*
    • *

0POP05-EO-FRC1 requires the operator to start 3 trains of SI Pumps. If a HHSI / LHSI pump does not start, what does the procedure have the operator do?

A

Start both CCPs with MAX Charging. (240 gpm/CCP)

If CCP not available, start PDP also.

56
Q
  • 0POP05-EO-FRH3 Response to SG High Level*
    • *

What conditions will allow entry into 0POP05-EO-FRH3?

A

SGNR ≥ 87% [60%] in ≥ 1 SG

Can also enter from 0POP05-EO-FRH2 Response to SG Overpressure if SGNR > 91% [71%].

57
Q
  • 0POP05-EO-FRC2 Response to Degraded Core Cooling*
    • *

What conditions will allow entry into 0POP05-EO-FRC2?

A

Subcooling ≤ 35 ˚F [45 ˚F]
AND
RVWL Plenum < 20%
AND
CETs ≥ 708 ˚F

58
Q
  • 0POP05-EO-EC02 Loss of All AC Power w/ SI Required*
    • *

What is unique about the SI Termination Criteria in 0POP05-EO-EC02?

A

IF aligned for CL Recirc AND RCS Pressure > Shutoff Head for Pump
THEN Turn off pump

No Mini Flow Protection.

59
Q
  • 0POP05-EO-ES03 Natural Circulation C/D with Voids*
    • *

What conditions prevent the operator from transitioning to 0POP05-EO-ES03?

A

Any Faulted OR Inactive SGs

60
Q
  • 0POP05-EO-ES02 Natural Circulation C/D*
    • *

At what SG level should you not restore AFW Flow?

A

≤ 13 % WR Level

Contact TSC for recovery actions.

61
Q
  • 0POP05-EO-EO30 SG Tube Rupture*
    • *

What ruptured SG pressure would be indicative of a LOCA and require entry into 0POP05-EO-EC31?

A

≤ 468 psig

62
Q
  • 0POP05-EO-E010 Loss of Rx or Secondary Coolant*
    • *

When do the operators transition to HL Recirculation?

A

5.5 Hours

At 4.5 Hours after event initiation, the operators will begin to prepare.

63
Q
  • 0POP05-EO-EC33 SGTR w/o PZR Pressure Control*
    • *

What are the SI reinitiation criteria for 0POP05-EO-EC33?

A
  • RCS Subcooling:*
  • *< 35 ˚F [45 ˚F]**
  • RCS Inventory:*
  • *RVWL Plenum < 85%**
64
Q
  • 0POP05-EO-FRC2 Response to Degraded Core Cooling*
    • *

If all RCPs are running in 0POP05-EO-FRC2, what does the procedure direct the operator to do?

A

Stop RCP 1D

Save for PZR spray

65
Q
  • 0POP05-EO-ES02 Natural Circulation C/D*
    • *

What subcooling margin should be maintained while performing a C/D in 0POP05-EO-ES02?

A

≥ 80 ˚F Subcooling

Utilize Max Quad TC Ave for Addendum 1 and NOT Qual PAMS subcooling indication.

Note:
Same as 0POP05-EO-ES05 Natural Circ C/D w/ Loss of letdown.

66
Q
  • 0POP05-EO-E010 Loss of Rx or Secondary Coolant*
    • *

How long does the operator have to depressurize the intact SGs to < 1000 psig and lower their PORV setpoints?

A

45 Mins

Prevents exceeding peak clad temperature limit (2200 ˚F)

  • Ensures HHSI pumps are injecting
67
Q
  • 0POP05-EO-EC21 Uncontrolled Depress of all SGs*
    • *

What is unique about the SI termination criteria in 0POP05-EO-EC21?

A

HHSI pumps have become your heat sink

68
Q
  • 0POP05-EO-EO30 SG Tube Rupture*
    • *

You have finished the C/D of 0POP05-EO-EO30 and the procedure has you check ruptured SG pressure controlled or rising. What ∆P between intact and ruptured SGs would be indicative of a LOCA and require entry into 0POP05-EO-EC31?

A

Ruptured SG < 250 psig above Intact SG

Ruptured SG should be isolated and not used for C/D. Therefore its pressure should remain high while intact SGs should have dropped. If ruptured SG pressure is lower (i.e. RCS pressure dropped quickly), then you have indications of a LOCA.

Note:
Also have indication of LOCA on next step. Check Subcooling > 55 ˚F [65 ˚F]

69
Q
  • 0POP05-EO-EO00 Rx Trip or SI*
    • *

What EOPs have the following RCP Trip Criteria?

  • HHSI Pump - At least one running
  • RCS Pressure - < 1430 psig
A
  • Active During Entire Procedure:*
  • *0POP05-EO-EO00**
  • Rx Trip or SI*
  • *0POP05-EO-EO10**
  • Loss of Primary or Secondary Coolant*
  • *0POP05-EO-ES00**
  • Rediagnosis*

Active Before C/D:

  • *0POP05-EO-EO30**
  • SG Tube Rupture*
  • *0POP05-EO-ES12**
  • Post LOCA C/D and Depress*
70
Q
  • 0POP05-EO-ES03 Natural Circulation C/D with Voids*
    • *

What conditions must be met prior to starting a RCP with voids in the vessel?

A

PZR Level ≥ 95% [98%]

Subcooling ≥ 77 ˚F [92 ˚F]

71
Q
  • 0POP05-EO-FRH3 Response to SG High Level*
    • *

How does the operator lower SG level in 0POP05-EO-FRH3?

A

Isolate MFW

Isolate AFW

Establish Blowdown

  • Do not release steam if affected SGNR > 91% [71%] until TSC evaluation performed.
  • Only exception is the terry turbine if it is the only source of feed.
72
Q
  • 0POP05-EO-EC00 Loss of All AC*
    • *

Why do the operators stop depressurizing the intact SGs at 405 psig?

A

Accumulators will not inject if SG Pressures > 305 psig (100 psig margin)

Will also stop depress if RCS CL < 274 ˚F (Integrity CSF)

73
Q
  • 0POP05-EO-EC11 Loss of Emergency Coolant Recirc*
    • *

If you are in 0POP05-EO-EC11, how many trains of SI should be running at most?

A

One Train

74
Q
  • 0POP05-EO-EO00 Rx Trip or SI*
    • *

What procedure will EO00 kick you out to if you can not isolate the PZR PORV in Step 9?

A

0POP05-EO-EO10 Loss of Rx or Secondary Coolant

Monitor Critical Safety Functions and when Addendum 5 Complete Implement

75
Q
  • 0POP05-EO-EO00 Rx Trip or SI*
    • *

If a LOOP or SI occurs and a train of essential chilled water fails, how long does the operator have to secure that train’s EAB HVAC fans?

A

30 Mins

Prevents EAB HVAC fans from adding heat to the Aux S/D room and the QDPS rooms.

76
Q
  • 0POP05-EO-EC33 SGTR w/o PZR Pressure Control*
    • *

While performing the RCS cooldown in 0POP05-EO-EC33, PZR pressure control is re-established and PZR level is restored to > 8% [44%]. What should the operator do?

A

Transition to 0POP05-EO-EO30 Step 31

77
Q
  • 0POP05-EO-ES12 Post LOCA C/D and Depress*
    • *

If the TSC staff has determined that H2 dissolution has occured in the PZR reference leg, what is the minimum PZR level that heaters can be re-energized?

A

PZR Level > 36%

78
Q
  • 0POP05-EO-FRC1 Response to Inadequate Core Cooling*
    • *

Why does 0POP05-EO-FRC1 have the operator depress intact SGs to < 305 psig?

A

To allow Accumulators and LSHI pumps to inject.

79
Q
  • 0POP05-EO-EC00 Loss of All AC*
    • *

How long does the operator have to de-energize the Train A Sequencer during a station blackout?

A

30 Min

Accomplished with Addendum 4 Vital Bus Monitoring.

80
Q
  • 0POP05-EO-FRH1 Response to Loss of Secondary Heat Sink*
    • *

What is required for adequate feed and bleed?

A

Feed:
Two (2) HHSI
One (1) CCP

  • Bleed:*
  • *Two (2) PZR PORVs**
81
Q
  • 0POP05-EO-FRH4 Response to Normal Steam Release Capabilities*
    • *

How does the operator lower SG pressure in 0POP05-EO-FRH4?

A

SG PORVs

  • *Steam Dumps**
  • Open MSIV or MSIB*
82
Q
  • 0POP05-EO-EC12 LOCA Outside Containment*
    • *

What procedure will the operators transition to once 0POP05-EO-EC12 is complete?

A

RCS Pressure Rising:
0POP05-EO-EO10
Loss or Rx or Secondary Coolant

  • RCS Pressure Lowering:*
  • (Unable to isolate leak)*

0POP05-EO-EC11
Loss of Emergency Coolant Recirc

83
Q
  • 0POP05-EO-EO00 Rx Trip or SI*
    • *

What is the only casualty that will allow you to get past steps 12-14 in EO00?

A

LOCA outside of containment

Must of had SI and conditions are not met for step 14 in EO00 to kick you out to EO10.

Note:
Step 24 or 25 will eventually kick you out to 0POP05-EO-EC12 LOCA outside Containment.

84
Q
  • 0POP05-EO-EC00 Loss of All AC*
    • *

What is the basis of ensuring RCS TC < 360 ˚F within 10 hrs of a loss of all AC?

A
  • *Will preclude RCP #1 Seal surface corrosion**
  • Could result in excessive leakage*
85
Q
  • 0POP05-EO-EC00 Loss of All AC*
    • *

What kind of valves are the AFW OCIVs, AFW Reg Valves, and AFW X-Connects?

A

AC MOVs:
A,B,C AFW OCIVs
A,B,C AFW Reg Valves

DC MOVs:
D AFW OCIV
D AFW Reg Valve

  • AOVs:*
  • *All AFW X-Connects**
86
Q
  • 0POP05-EO-FRH2 Response to SG Overpressure*
    • *

How does the operator lower SG pressure in 0POP05-EO-FRH2?

A
  • SG D ONLY:*
  • *Terry Turbine**
  • All Affected SGs:*
  • *SG PORVs**
  • All Unaffected SGs:*
  • *Dump Steam to lower RCS HL< 555 ˚F [550 ˚F]**

If affected SG PORV will not open, procedure has you open MSIBs to X-Conn SGs.

  • Note:
  • DO NOT DUMP STEAM IF SGNR > 91% [71%]**. Need TSC Evaluation. Should enter 0POP05-EO-FRH3 Response to SG High Level.
87
Q
  • 0POP05-EO-EO30 SG Tube Rupture*
    • *

If the ruptured SG is also faulted, should you restore AFW flow if SGNR level drops below 14% [34%]?

A

No

Caution statement before step 4 gives you an out.

88
Q
  • 0POP05-EO-FRC1 Response to Inadequate Core Cooling*
    • *

What conditions allow the operator to exit 0POP05-EO-FRC1 and transition to 0POP05-EO-EO10?

A

CETs < 1200 ˚F

Two (2) RCS HL < 350 ˚F

RVWL ≥ 20%

Need a HHSI with flow indicated OR a LHSI with flow to transition to EO10. Otherwise puts you in a loop or bypasses this step.

89
Q
  • 0POP05-EO-EC11 Loss of Emergency Coolant Recirc*
    • *

If you are unable to meet the SI termination criteria in 0POP05-EO-EC11, the procedure will direct you to Addendum 5 Minimum SI Flow. What are the high level steps of this Addendum?

A

Check RCS < 415 psig
No: Secure LHSI and exit procedure.
After this step should only have 1 HHSI OR 1 LHSI

Stop HHSI

Open Mini Flow Valves for running LHSI

  • *Establish Min Flow Using Chart**
  • Done by closing RHR HX Bypass and throttling TCV*
90
Q
  • 0POP05-EO-ES11 SI Termination*
    • *

How do you reset P4 Logic?

A

Close Rx Trip Breakers

Open Rx Trip Breakers

91
Q
  • 0POP05-EO-FRC1 Response to Inadequate Core Cooling*
    • *

What conditions will allow entry into 0POP05-EO-FRC1?

A

CETs ≥ 1200 ˚F

92
Q
  • 0POP05-EO-FRH5 Response to SG Low Level*
    • *

What conditions will allow entry into 0POP05-EO-FRH5?

A

SGNR ≤ 14% [34%] in ≥ 1 SGs

93
Q
  • 0POP05-EO-ES01 Rx Trip Response*
    • *

What is the purpose of arming the steam dumps in steam pressure control if no RCPs are running in 0POP05-EO-ES01?

A

Need dumps for a Heat Sink for Natural Circulation

94
Q
  • 0POP05-EO-ES01 Rx Trip Response*
    • *

What procedure will the operators transition to cool down the plant after performing 0POP05-EO-ES01?

A
  • With RCPs:*
  • *0POP03-ZG-0007 Plant Cooldown**
  • With No RCPs:*
  • *0POP05-EO-ES02 Natural Circulation Cooldown**
  • With No RCPs AND No Letdown:*
  • *0POP05-EO-ES05 Natural Circulation Cooldown w/ Loss of Letdown**
95
Q
  • 0POP05-EO-E010 Loss of Rx or Secondary Coolant*
    • *

What procedure do you transition to if you have a small break LOCA?

A

0POP05-EO-ES12
Post LOCA C/D and Depress

Transition Criteria:
RCS Pressure > 415 psig (LHSI Shutoff Head)

OR

RCS ≤ 415 psig AND LHSI Flow ≤ 500 gpm

96
Q
  • 0POP05-EO-EC31 SGTR w/ LOCA - Subcooled Recovery*
    • *

What conditions will send the operator to 0POP05-EO-EC32?

A
  • *RWST Level ≤ 50%**
  • Must use Addendum 6 to take into account containment water level also*
  • *Ruptured SGNR Level ≥ 91% [71%]**
  • TSC has a buy in*
97
Q
  • 0POP05-EO-ES31 Post SGTR C/D using Backfill*
    • *

If a LOCA occurs while performing 0POP05-EO-ES31, what procedure will you transition to?

A
  • *0POP05-EO-EC31**
  • SGTR w/ Loss of Rx Coolant - Subcooled Recovery Desired*

Will also start SI pumps per CIP.

Note:
Will not transition to 0POP05-EO-EO10 due to LOCA w/ a SGTR.

98
Q
  • 0POP05-EO-FRS2 Response to Loss of Core S/D*
    • *

What conditions will allow entry into 0POP05-EO-FRS2?

A

Extended Range Flux ≥ 5x10-6 %
AND
SUR 0 DPM to -0.2 DPM

OR

Extended Range Flux < 5x10-6 % AND (+) SUR

99
Q
  • 0POP05-EO-EC02 Loss of All AC Power w/ SI Required*
    • *

When can FRPs be implemented in 0POP05-EO-EC02?

A

After Step 11

First 11 steps are a mini Addendum 5 to verify SI actuated as designed.

100
Q
  • 0POP05-EO-ES13 Transfer to CL Recirc*
    • *

What is the minimum LHSI flow required by 0POP05-EO-ES13?

A

800 GPM

If due to high RCS pressure:

  • Maintain One PZR PORV Open.
101
Q
  • 0POP05-EO-ES01 Rx Trip Response*
    • *

While in 0POP05-EO-ES01, what conditions require the operator to emergency Borate?

A
  • *RCS temperature < 550 ˚F**
  • Secure when RCS Temperature ≥ 550 ˚F OR RCS Cb > 2800 ppm*

≥ 2 Rod bottom lights NOT Lit
Emergency Borate 940 Gal for each rod ≤ 18 Steps
Emergency Borate 4460 Gal for each rod > 18 Steps

OR

Borate to RCS Cb > 2800 ppm

  • *Loss of DRPI**
  • Borate until DRPI restored OR RCS Cb > 2800 ppm*
102
Q
  • 0POP05-EO-EC00 Loss of All AC*
    • *

When must the operator commence filling the AFWST with FPS?

A

AFWST Level < 138,000 (26%)
AND
Cannot fill with 0POP02-AF-0001

103
Q
  • 0POP05-EO-EO00 Rx Trip or SI*
    • *

What conditions require the operator to isolate the MSR cooldown path in EO00?

A

Any MSIV or MSIB not shut w/ LOOP OR IA Pressure < 95 psig

Note:
MSR valves will fail open on Loss of power or air and do not want excessive C/D.

104
Q
  • 0POP05-EO-ES03 Natural Circulation C/D with Voids*
    • *

What must be done when entering MODE 4 to satisfy tech specs?

A

Place 2 HHSI pumps in PTL

Place 1 CCP in PTL

Place PDP in PTL

105
Q
  • 0POP05-EO-FRS1 Response to ATWS*
    • *

What is the preferred source of emergency boration in 0POP05-EO-FRS1?

A

BAT Tanks

Will get more Boron in RCS with less inventory added.

106
Q
  • 0POP05-EO-FRH1 Response to Loss of Secondary Heat Sink*
    • *

When is feed and bleed required?

A

Two (2) SGs WR Level < 50% [73%]

OR

PZR Pressure > 2335 psig

Feed and bleed should not be initiated if SG low level caused by depressurizing the SGs to allow fire water to be used (Addendum 8) unless CETs > 567 ˚F and rising.

107
Q
  • 0POP05-EO-ES02 Natural Circulation C/D*
    • *

While performing a C/D in 0POP05-EO-ES02 with an inactive SG, how do you prevent the inactive SG from becoming a heat source to the RCS?

A

Maintain Inactive SG 200 - 300 psig above Active SG Pressure

SG PORV limited to 10% open during C/D.

108
Q
  • 0POP05-EO-EO30 SG Tube Rupture*
    • *

When will the operator secure depressurizing the RCS in 0POP05-EO-EO30?

A

RCS Pressure < Ruptured SG Pressure
PZR Level > 8% [44%]

OR

PZR Level > 70%

OR

RCS Subcooling < 35 ˚F [45 ˚F]

OR

PZR SPRAY ONLY
RCS / Ruptured SG ∆P < 300 psid
PZR Level > 38% [50%]

109
Q
  • 0POP05-EO-EO00 Rx Trip or SI*
    • *

What values put you in adverse containment conditions?

A

Containment Pressure ≥ 5 psig **

Containment Radiation Levels ≥ 105 R/hr**

Containment Integrated Dose ≥ 106 R

Note:
If Pressure or Radiation Levels drop back below values, then adverse containment may be exited.

110
Q
  • 0POP05-EO-EC00 Loss of All AC*
    • *

What must be done if CET > 1200 ˚F while in 0POP05-EO-EC00?

A

CET > 1200 ˚F
Notify TSC and Emergency Director
Go To SAMG with Emergency Director Concurrence

  • CET > 708 ˚F*
  • *Notify TSC and Emergency Director**
111
Q
  • 0POP05-EO-FRH1 Response to Loss of Secondary Heat Sink*
    • *

What are the SG Feed flow criteria on the CIP of 0POP05-EO-FRH1?

A
  • SGWR Level > 13% [37%]:*
  • *Any AFW Flow**
  • *Bleed and Feed in Progress**
  • *ALL SGs SGWR Level ≤ 13% [37%]**

RCS WR Th ≤ 550˚F OR > 550 ˚F w/ CETs Stable / Lowering

Restore AFW to One (1) SG [100 gpm]**

RCS WR Th > 550 ˚F w/ CETs Rising

Establish MAX Flow to One (1) SG**

  • WHEN SGWR > 13% [37%] AND RCS WR Th ≤ 550 ˚F
    • THEN Any AFW Flow
112
Q
  • 0POP05-EO-EC01 Loss of All AC Power w/o SI Required*
    • *

When can FRPs be implemented in 0POP05-EO-EC01?

A
  • *After Step 11**
  • By that time you have control of plant and SI back in AUTO*
113
Q
  • 0POP05-EO-ES05 Natural Circulation C/D w/ Loss of Letdown*
    • *

What is unique of about the AFW flow / Heat sink requirements in 0POP05-EO-ES05?

A
  • *SG NR Level > 14% in TWO SGs**
  • Normally requires 1 SG*

OR

Total AFW Flow > 576 gpm

Basis: Has something to do with fire hazard analysis in FSAR.

Note:
If you do not have 2 SG’s available for C/D, Use Addendum 7 Establish DA Vent Path.

114
Q
  • 0POP05-EO-FRH4 Response to Normal Steam Release Capabilities*
    • *

What conditions will allow entry into 0POP05-EO-FRH4?

A
  • *SG Pressure in ≥ 1 SG ≥ 1285 psig**
  • Lowest Safety Setting*

NRC Review (7 decks)

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