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LCO > 3.7 "Plant Systems" > Flashcards

3.7 "Plant Systems" Flashcards

1
Q

LCO 3.7.1 title

A

Main Steam Safety Valves

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2
Q

LCO 3.7.1 requirement

A

23 MSSVs shall be operable as specified in Table 3.7.1-1 (4 per generator w/lift setting of 985 psig, 4 per generator w/lift setting of 1005, and 4 per generator w/ lift setting of 1025 psig

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3
Q

LCO 3.7.1 applicability

A

Modes 1-3

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4
Q

LCO 3.7.1 required actions < 1 hour

A

NONE

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5
Q

LCO 3.7.2 title

A

MSIVs

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6
Q

LCO 3.7.2 requirement

A

2 MSIVs shall be operable

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7
Q

LCO 3.7.2 applicability

A
  • Mode 1

- Modes 2 and 3, except when both MSIVs are closed and de-activated

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8
Q

LCO 3.7.2 required actions < 1 hour

A

NONE

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9
Q

LCO 3.7.3 title

A

MFRVs and MFRV Bypass Valves

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10
Q

LCO 3.7.3 requirement

A
  • 2 MFRVs and 2 MFRV bypass valves shall be operable

- Separate Condition entry is allowed for each valve

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11
Q

LCO 3.7.3 applicability

A

Modes 1-3, except when both MFRVs and both MFRV bypass valves are either closed and de-activated, or isolated by closed manually actuated valves

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12
Q

LCO 3.7.3 required actions < 1 hour

A

NONE

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13
Q

LCO 3.7.4 title

A

ADVs

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14
Q

LCO 3.7.4 requirement

A

1 ADV per S/G shall be operable

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15
Q

LCO 3.7.4 applicability

A
  • Modes 1-3

- Mode 4 when S/G is being relied upon for heat removal

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16
Q

LCO 3.7.4 required actions < 1 hour

A

NONE

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17
Q

LCO 3.7.5 title

A

AFW System

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18
Q

LCO 3.7.5 requirement

A
  • 2 AFW trains shall be operable
  • Only 1 AFW train, which includes a motor driven pump, is required to be operable in Mode 4
  • The steam driven pump is only required to be operable prior to making the reactor critical
  • 2 AFW pumps may be placed in manual for testing for a period of up to 4 hours
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19
Q

LCO 3.7.5 applicability

A
  • Modes 1-3

- Mode 4 when S/G is relied upon for heat removal

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20
Q

LCO 3.7.5 required actions < 1 hour

A

-Less than 100% require AFW flow available to both S/Gs, then initiate action to restore 1 AFW train to operable (LCO 3.0.3 and all other LCO actions requiring mode changes or power reductions are suspended until at least 100% of required AFW flow is available due to loss of heat removal capability post trip)

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21
Q

LCO 3.7.6 title

A

Condensate Storage and Supply

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22
Q

LCO 3.7.6 requirement

A

The combined usable volume of the CST (T-2) and PMUST (T-81) shall be >= 100,000 gallons

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23
Q

LCO 3.7.6 applicability

A
  • Modes 1-3

- Mode 4 when S/G is relied upon for heat removal

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24
Q

LCO 3.7.6 required actions < 1 hour

A

NONE

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25
LCO 3.7.7 title
CCW System
26
LCO 3.7.7 requirement
2 CCW trains shall be operable
27
LCO 3.7.7 applicability
Modes 1-4
28
LCO 3.7.7 required actions < 1 hour
Less than 100% of the required post accident CCW cooling capability available, then enter LCO 3.0.3 immediately
29
LCO 3.7.8 title
Service Water System
30
LCO 3.7.8 requirement
2 SWS trains shall be operable
31
LCO 3.7.8 applicability
Modes 1-4
32
LCO 3.7.8 required actions < 1 hour
Less than 100% of the required post accident SWS cooling capability available, then enter LCO 3.0.3 immediately
33
LCO 3.7.9 title
Ultimate Heat Sink
34
LCO 3.7.9 requirement
The UHS shall be operable (>= 568.25' and <= 85 F)
35
LCO 3.7.9 applicability
Modes 1-4
36
LCO 3.7.9 required actions < 1 hour
NONE
37
LCO 3.7.10 title
Control Room Ventilation Filtration
38
LCO 3.7.10 requirement
- 2 CRV Filtration trains shall be operable | - The Control Room Envelope boundary may be opened intermittently under admin control
39
LCO 3.7.10 applicability
- Modes 1-4 - During core alterations - During movement of irradiated fuel assemblies - During movement of a fuel cask in or over the SFP
40
LCO 3.7.10 required actions < 1 hour
- 1 or more CRV Filtration trains inoperable due to inoperable CRE boundary in Modes 1-4, then initiate action to implement mitigating actions immediately - 2 CRV Filtration trains inoperable in Modes 1-4 for reasons other than inoperable CRE boundary, then immediately initiate action to implement mitigating actions (N/A when 2nd train intentionally made inoperable) - 1 train inoperable for reasons other than inoperable CRE boundary for > 7 days during core alterations, movement of irradiated fuel assemblies, or movement of a fuel cask in or over the SFP, then place operable train in emergency mode OR suspend core alterations, movement of irradiated fuel assemblies, AND movement of a fuel cask in or over the SFP immediately - 2 CRV Filtration trains inoperable OR 1 or more trains inoperable due to inoperable CRE boundary during core alterations, movement of irradiated fuel assemblies, or movement of a fuel cask in or over the SFP OR 1 or more trains inoperable due to inoperable, then suspend core alterations, movement of irradiated fuel assemblies, AND movement of a fuel cask in or over the SFP immediately
41
LCO 3.7.11 title
CRV Cooling
42
LCO 3.7.11 requirement
2 CRV Cooling trains shall be operable
43
LCO 3.7.11 applicability
- Modes 1-4 - During core alterations - During movement of irradiated fuel assemblies - During movement of a fuel cask in or over the SFP
44
LCO 3.7.11 required actions < 1 hour
- 1 CRV Cooling train inoperable > 30 days during core alterations, movement of irradiated fuel assemblies, or movement of a fuel cask in or over the SFP, then place operable train in operation OR suspend core alterations, movement of irradiated fuel assemblies, AND movement of a fuel cask in or over the SFP immediately - 2 CRV Cooling trains inoperable during core alterations, movement of irradiated fuel assemblies, or movement of a fuel cask in or over the SFP, then suspend core alterations, movement of irradiated fuel assemblies, AND movement of a fuel cask immediately
45
LCO 3.7.12 title
Fuel Handling Area Ventilation System
46
LCO 3.7.12 requirement
The Fuel Handling Area Ventilation System shall be operable with 1 fuel handling area exhaust fan aligned to the emergency filter bank and in operation
47
LCO 3.7.12 applicability
- During movement of irradiated fuel assemblies in the fuel handling building when irradiated fuel assemblies with < 30 days decay time are in the building - During movement of a fuel cask in or over the SFP when irradiated fuel assemblies with < 90 days decay time are in the building - During core alterations when irradiated fuel assemblies with < 30 days decay time are in containment w/the equipment hatch open - During movement of irradiated fuel assemblies in containment when irradiated fuel assemblies with < 30 days decay time are in containment w/the equipment hatch open
48
LCO 3.7.12 required actions < 1 hour
Fuel Handling Area Ventilation System not aligned or in operation, or inoperable, then suspend movement of fuel assemblies, core alterations, AND movement of a fuel cask in or over the SFP immediately
49
LCO 3.7.13 title
Engineered Safeguards Room Ventilation Dampers
50
LCO 3.7.13 requirement
2 ESRV Damper trains shall be operable
51
LCO 3.7.13 applicability
Modes 1-4
52
LCO 3.7.13 required actions < 1 hour
1 or more ESRV Damper trains inoperable, then initiate action to isolate associated ESRV Damper train(s) immediately
53
LCO 3.7.14 title
SFP Water Level
54
LCO 3.7.14 requirement
- The SFP water level shall be >= 647' elevation - SFP level may be below the 647' elevation to support fuel cask movement, if the displacement of water by the cask, when submerged, would raise level to >= 647' elevation
55
LCO 3.7.14 applicability
- During movement of irradiated fuel assemblies in the SFP | - During movement of a fuel cask in or over the SFP
56
LCO 3.7.14 required actions < 1 hour
SFP water level not within limit, then suspend movement of irradiated fuel assemblies in SFP AND suspend movement of fuel cask in or over the SFP immediately
57
LCO 3.7.15 title
SFP Boron Concentration
58
LCO 3.7.15 requirement
SFP boron concentration shall be >= 1720 ppm
59
LCO 3.7.15 applicability
When fuel assemblies are stored in the SFP
60
LCO 3.7.15 required actions < 1 hour
SFP boron concentration not w/in limit, then suspend movement of fuel assemblies in the SFP AND initiate action to restore SFP boron concentration to w/in limit immediately

LCO (9 decks)

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