Section 3.6 Containment Systems Flashcards

1
Q
  • LCO 3.6.1.5 Air Temperature*
    • *

When is LCO 3.6.1.5 Air Temperature Applicable?

A

MODES 1-4

Bases:
< 110 ˚F assumed in the safety analyses for LOCA or SLB accident.

Note:
The primary containment average air temperature shall be the arithmetical average of a minimum of four RCFC inlet temperatures

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q
  • LCO 3.6.1.3 Containment Air Locks*
    • *

What are your ≤ 1 hr action(s) if the containment air lock inoperable for reasons other than the door or interlock mechanism during MODES 1-4?

A
  • LCO 3.6.1.3 Containment Air Locks*
  • Action C*
    • *
  • Verify containment leakage [Immediately]

AND

  • Verify containment air lock closed [1 hr]

AND

  • Restore inoperable air lock [24 hrs]

OR

  • Be in MODE 3 [6 hrs]

AND

  • Be in MODE 5 [Following 30 hrs]
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q
  • LCO 3.6.1.6 Containment Structural Integrity*
    • *

When is LCO 3.6.1.6 Containment Structural Integrity Applicable?

A

MODES 1-4

Bases:
Containment will be able to withstand ≤ 41.2 psig in the event of a LOCA or SLB.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q
  • LCO 3.6.2.1 Containment Spray System*
    • *

When is LCO 3.6.2.1 Containment Spray System Applicable?

A

MODES 1-4

Containment Spray and Containment Cooling both provide post accident cooling but containment spray also removes iodine.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q
  • LCO 3.6.1.4 Internal Pressure*
    • *

When is LCO 3.6.1.4 Internal Pressure Applicable?

A

MODES 1-4

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q
  • LCO 3.6.2.3 Containment Cooling System*
    • *

What are your ≤ 1 hr action(s) if ≥ 2 groups of RCFCs are inoperable while in MODES 1-4?

A
  • LCO 3.6.2.3 Containment Cooling System*
  • Action B*
    • *
  • Restore at least 2 groups of RCFCs [1 hr]

OR

  • Apply CRMP [1 hr]

OR

  • Be in MODE 3 [6 hrs]

AND

  • Be in MODE 5 [Following 30 hrs]
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q
  • LCO 3.6.1.3 Containment Air Locks*
    • *

What are your ≤ 1 hr action(s) if the containment interlock mechanism is inoperable while in MODES 1-4?

A
  • LCO 3.6.1.3 Containment Air Locks*
  • Action B*
    • *
  • Verify OPERABLE air lock closed [1 hr]

AND

  • Lock closed an OPERABLE air lock [24 hrs]

AND

  • Verify OPERABLE air lock is locked [Every 31 days]

OR

  • Be in MODE 3 [6 hrs]

AND

  • Be in MODE 5 [Following 30 hrs]
    • *

Note:
Entry/Exit from containment is permissible with dedicated individual

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q
  • LOT 201.11 Containment Spray*
    • *

While in MODES 1 - 4, how much trisodium phosphate must there be in the containment baskets?

A

11,500 lbs - 15,100 lbs

LCO 3.6.2.2 Recirculation Fluid pH Control

Applicability: MODES 1 - 4

  • Note:*
  • 6 Baskets are in containment.*
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q
  • LCO 3.6.2.3 Containment Cooling System*
    • *

How much CCW flow must go to each RCFC to make the RCFC OPERABLE?

A

≥ 1800 gpm

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q
  • LCO 3.6.2.3 Containment Cooling System*
    • *

When is LCO 3.6.2.3 Containment Cooling System Applicable?

A

MODES 1-4

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q
  • LOT 201.11 Containment Spray*
    • *

What does the Trisodium Phospate baskets maintain the pH of the ECCS water at during a DBA?

A

7.0 - 9.5

  • 7.0 Basis: Retention of Iodine in sumps
  • 9.5 Basis: Chloride stress corrosion cracking of stainless steel
  • Note:*
  • Initial pH of ECCS is as low as 4.5.*
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q
  • LCO 3.6.1.4 Internal Pressure*
    • *

What are the ≤ 1 hr action(s) if the containment internal pressure is outside it’s limits while in MODES 1-4?

A
  • LCO 3.6.1.4 Internal Pressure*
  • Action A*
    • *
  • Restore pressure to within limits [1 hr]

OR

  • Be in MODE 3 [6 hrs]

AND

  • Be in MODE 5 [Following 30 hrs]
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q
  • LCO 3.6.2.2 Recirculation Fluid pH Control System*
    • *

When is LCO 3.6.2.2 Recirculation Fluid pH Control System Applicable?

A

MODES 1-4

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q
  • LCO 3.6.2.1 Containment Spray System*
    • *

What are your ≤ 1 hr action(s) if ≥ 1 Containment spray train is inoperable due to debris from a LOCA event while in MODES 1-3?

A
  • LCO 3.6.2.1 Containment Spray System*
  • Action C*
    • *
  • Initiate compensatory Actions [Immediately]

AND

  • Restore Containment Spray Train(s) to OPERABLE [90 days]

OR

  • Be in MODE 3 [6 hrs]

AND

  • Be in MODE 5 [Following 30 hrs]
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q
  • LOT 201.01 RCB*
    • *

Containment is designed to withstand a safe shutdown earthquake (SSE). During such an event, what is the max expected offsite exposure for whole body and the thyroid?

A
  • Whole Body:*
  • *25 Rem**
  • Thyroid:*
  • *300 Rem**

10CFR100

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q
  • LCO 3.6.1.1 Containment Integrity*
    • *

When is LCO 3.6.1.1 Containment Integrity Applicable?

A

MODES 1-4

17
Q
  • LCO 3.6.2.1 Containment Spray System*
    • *

How much D/P must each containment spray pump generate while on recirculation?

A

≥ 283 psid

18
Q
  • LCO 3.6.3 Containment Isolation Valves*
    • *

When is LCO 3.6.3 Containment Isolation Valves Applicable?

A

MODES 1-4

19
Q
  • LCO 3.6.1.6 Containment Structural Integrity*
    • *

What are your ≤ 1 hr action(s) if containment is inoperable due to containment tensioning in MODES 1-4?

A
  • LCO 3.6.1.6 Containment Structural Integrity*
  • Action A*
    • *
  • Restore Containment to OPERABLE [1 hr]

OR

  • Be in MODE 3 [6 hrs]

AND

  • Be in MODE 5 [Following 30 hrs]
20
Q
  • LCO 3.6.1.3 Containment Air Locks*
    • *

When is LCO 3.6.1.3 Containment Air Locks Applicable?

A

MODES 1-4

21
Q
  • LCO 3.6.1.3 Containment Air Locks*
    • *

What are your ≤ 1 hr action(s) if 1 containment air lock door is inoperable while in MODES 1-4?

A
  • LCO 3.6.1.3 Containment Air Locks*
  • Action A*
    • *
  • Verify OPERABLE air lock closed [1 hr]

AND

  • Restore inoperable air lock [24 hrs]

OR

  • LOCK OPERABLE air lock closed [24 hrs]

AND

  • Verify Air lock locked closed [Every 31 days]

OR

  • BE in MODE 3 [6 hrs]

AND

  • Be in MODE 5 [Following 30 hrs]
    • *

​​Note:
May enter/exit through airlock to conduct repairs

22
Q
  • LCO 3.6.2.1 Containment Spray System*
    • *

What are your ≤ 1 hr action(s) if ≥ 2 containment spray trains are inoperable in MODES 1-4?

A
  • LCO 3.6.2.1 Containment Spray System*
  • Action B*
    • *
  • Restore at least 2 trains of CSS [1 hr]

OR

  • Apply CRMP [1 hr]

OR

  • Be in MODE 3 [6 hrs]

AND

  • Be in MODE 5 [Following 30 hrs]
23
Q
  • LCO 3.6.1.2 Containment Leakage*
    • *

When is LCO 3.6.1.2 Containment Leakage Applicable?

A

MODES 1-4

24
Q
  • LOT 201.01 RCB*
    • *

What is the design pressure of containment?

A
  • Internal:*
  • *56.5 psig**
  • Between -0.1 and +0.3 psig*
  • CNMT PRESS HI / LOW (CP002)*
  • (LCO 3.6.1.4 Containment Internal Pressure)*
  • External:*
  • *3.5 psig**

Max expected for DBA is 41.2 psig

CNMT PRESS HI/LOW on CP002 will put you in LCO 3.6.1.4 Containment Internal Pressure.

  • Note:*
  • Design temperature is 286 ˚F*
25
Q
  • LCO 3.6.1.7 Containment Ventilation System*
    • *

When is LCO 3.6.1.7 Containment Ventilation System Applicable?

A

MODES 1-4

Bases:

  • 48 in are required to be shut b/c they have not been demonstrated capable of shutting during SLB/LOCA
  • 18 in are capable of being shut during SLB/LOCA so 10CFR100 offsite dose limits will not be exceeded.
26
Q
  • LCO 3.6.1.1 Containment Integrity*
    • *

What are your ≤ 1 hr action(s) if primary containment integrity is lost while in MODES 1-4?

A
  • LCO 3.6.1.1 Containment Integrity*
  • Action A*
    • *
  • Restore containment integrity [1 hr]

OR

  • Be in MODE 3 [6 hrs]

AND

  • Be in MODE 5 [Following 30 hrs]
27
Q
  • LCO 3.6.1.2 Containment Leakage*
    • *

What are your ≤ 1 hr action(s) if the overall containment leakage rate or the combined leakage of all penetrations and valves subject to types B/C leakage tests exceed their limits while in MODES 1-4?

A
  • LCO 3.6.1.2 Containment Leakage*
  • Action A*
    • *
  • Restore Leakage to within limits [1 hr]

OR

  • Be in MODE 3 [6 hrs]

AND

  • Be in MODE 5 [Following 30 hrs]