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Tech Specs Flashcards

1
Q

3.8.1 AC Sources - Operating

Applicability?

A

A. two circuits of off-site power & Class elec distribution
B. two DG’s to supply respective Class elec busses
C. Auto Load sequencers for A and B train

MODES 1-4

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2
Q

Per 3.8.1 AC Sources - Operating bases, what is each SU transformer secondary winding sized to start and carry?

A

1/2 of non-class loads and one train of ESF in one unit
1 train of ESF in a second unit

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3
Q

Per 3.8.1 AC Sources - Operating bases, what is required for each DG?

A

start, accelerate to rated speed and voltage, output breaker closed within 10 seconds

proper sequencing of loads, including tripping non-essential loads

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4
Q

3.8.2 AC Sources - Shutdown

Applicability?

A

A. One circuit of off-site power and the Class Elec distribution per 3.8.10 Distribution Systems - Shutdown
B. One DG and Class Elec distribution per 3.8.10 Distribution Systems - Shutdown

MODES 5, 6, Defueled

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5
Q

Per 3.8.2 AC Sources - Shutdown bases, what is required of the DG?

A

start, accelerate to rated speed and voltage, output breaker closed within 10 seconds

proper sequencing of loads, including tripping non-essential loads

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6
Q

Define the MODES from section 1.0 of Tech Specs

A
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7
Q

What is specified in LCO’s?

A

minimum requirements for ensuring safe operation of the plant

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8
Q

When does the Completion time begin?

A

when an SRO on the on-shift crew that is responsible for plant operations determines an LCO is not met, and an ACTIONS Condition is entered

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9
Q

Per Tech spec 2.1 - Safety Limit(s), what are the Safety Limits?

A

In Modes 1 and 2, DNBR >/= 1.34

In Modes 1 and 2:
peak fuel centerline temp for westinghouse fuel < 5080F
peak fuel centerline temp for framatome fuel < 4901F

In Modes 1-5, RCS pressure </= 2750 psia

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10
Q

Per Tech Spec 2.2 - SL Violations, what actions do we take?

A

if DNBR or peak fuel centerline temp are violated, we restore compliance and be in MODE 3 in 1 hour

if RCS pressure is violated:

Modes 1 and 2, restore compliance and be in mode 3 in 1 hour

Modes 3-5, restore compliance in 5 minutes

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11
Q

If Safety Limits are violated, what is needed to start the plant up again?

A

NRC authorization

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12
Q

What is LCO 3.0.3?

Applicability?

A

LCO not met
associated action not provided, or if directed by associated actions
unit will be placed in a MODE or specified condition where the violated LCO is not applicable

Action shall be initiated within 1 hour to place the unit, as applicable, in:
A. Mode 3 in 7 hours
B. Mode 5 in 37 hours

Any exceptions are stated in individual Tech Specs

3.0.3 is only applicable in Modes 1-4

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13
Q

If you complete the required actions or corrective measures of a tech spec that originally got you into LCO 3.0.3, do you still have to complete LCO 3.0.3?

A

No

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14
Q

What is LCO 3.0.4?

A

when an LCO is not met, entry into a Mode or other specified condition in the Applicability shall only be made:

A. when the associated actions to be entered permit continued operation in the Mode/specified condition in the applicability for an unlimited period of time

B. After performance of a risk assessment

C. When an allowance is stated in the individual value, parameter, or other Specification

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15
Q

What is LCO 3.0.5?

A

equipment removed from service or declared inoperable to comply with ACTIONS may be returned to service to perform testing required to demonstrate operability of it or other equipment

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16
Q

What is LCO 3.0.6?

A

If a supported system LCO is not met solely due to a support system LCO not being met, the Conditions and Required Actions associated with the supported system are not required to be entered.

Only the support system LCO Actions are required to be entered.

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17
Q

What is LCO 3.0.8?

A

When one or more required snubbers are unable to perform their associated support function, any affected supported LCO(s) are not required to be declared not met solely for this reason if:

risk is assessed and managed AND:

a. the snubbers are associated with only one train or subsystem and are able to perform their function within 72 hours

b. the snubbers are associated with more than one train or subsystem and can perform their function within 12 hours

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18
Q

What is SR 3.0.1?

A

SRs shall be met during the Modes or specified conditions in the Applicability for individual LCOs, unless otherwise stated in the SR

Failure to meet a surveillance is a failure to meet the LCO

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19
Q

What is SR 3.0.2?

A

the specified Frequency for each SR is met if the Surveillance is performed within 1.25 times the interval specified

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20
Q

Does SR 3.0.2 apply if the Frequency is specified as ‘once’?

A

No. You cannot extend a completion time if the frequency is ‘once’

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21
Q

Does SR 3.0.2 apply if the Frequency is specified as ‘once per…’ basis?

A

yes. The frequency extension could apply to each performance after the initial performance

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22
Q

What is SR 3.0.3?

A

if a Surveillance was discovered to not be performed within the specified frequency, the declaration of an LCO not met may be delayed from time of discovery up to 24 hours or up to the limit of the specified Frequency, whichever is greater

a risk eval shall be performed for any Surveillance delayed greater than 24 hours and risk impact shall be managed

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23
Q

Per SR 3.0.3, if the surveillance is not performed within the delay period, what must be done?

A

LCO declared immediately and conditions must be met

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24
Q

What is a Completion Time?

When does this time start?

A

amount of time allowed for completing a Required Action

time starts at the time of discovery declared by an SRO

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25
Q

What is the maximum amount of time that a Risk Informed Completion Time can be calculated for?

A

30 days

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26
Q

When are Risk informed completion times applicable?

A

Modes 1 and 2

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27
Q

What are the limitations of Extension times?

A

The stated Completion Time, as measured from the intial entry of the condition, plus 24 hours

or

the stated Completion time as measured from discovery of the subsequent inoperability

whichever is more restrictive

28
Q

Do completion time extensions apply to modified time zero completion times?

A

No

29
Q

3.8.4 - DC Sources Operating

Applicability

Basis

A

Trains A and B DC electrical power subsystems shall be operable

Modes 1-4

2 batteries, battery charger for each battery and corresponding equipment, cabling to supply power to the bus

Maintaining 3.8.4 DC sources operable during an assumed loss of all offsite power or all onsite AC and worse case single failure.

30
Q

LCO 3.8.5, DC Sources - Shutdown

Applicability

A

DC electrical power subsystem shall be operable to support DC power electrical distribution system required by LCO 3.8.10 Distribution Systems - Shutdown

Modes 5 and 6, during irradiated fuel movements

31
Q

LCO 3.8.6, Battery Cell Parameters

Applicability

A

Battery parameters for the Train A and Train B electrical power subsystem
batteries shall be within limits

When associated DC electrical power subsystems are required to be
OPERABLE.

32
Q

LCO 3.8.7, Inverters - Operating

Applicability

what are the allowable exceptions?

A

The required Train A and Train B inverters shall be OPERABLE.

Modes 1, 2, 3, and 4.

1 inverter can be disconnected from its associated battery for < or= 24 hours to equalize battery as long as its powered from its voltage regulator. and all others are on their inverter

A swing inverter and line-up switch can be used in place of an inverter. If a swing inverter is used in place the requirements of independence and redundancy between subsystems is maintained.

33
Q

LCO 3.8.8, Inverters - Shutdown

applicability

A

Required inverters per LCO 3.8.10 Distribution Systems - Shutdown

Modes 5 and 6
During movement of irradiated fuel assemblies.

34
Q

LCO 3.8.9, Distribution Systems

applicability

A

All four boards operable
Energized to proper voltage from inverter or voltage regulator

Modes 1-4

35
Q

LCO 3.6.3, Containment Isolation Valves

applicability?

Basis?

A

Each containment isolation valve shall be OPERABLE.

MODES 1, 2, 3, and 4.

Safety function is related to minimizing the loss of reactor coolant inventory and establishing containment boundary during a DBA.

36
Q

3.3.10, Post Accident Monitoring (PAM) Instrumentation

applicability?

Basis?

A

The PAM instrumentation for each Function in Table 3.3.10-1 shall be OPERABLE.

Modes 1-3

Two operable channels for all but one function to ensure no single failure prevents the operators from being presented with the info necessary to determine the status of the plant and to bring the plant to and maintain it in a safe condition following that accident.

37
Q

TLCO 3.1.102 - Charging Pumps - Shutdown

Applicability?

A

At least 1 charging pump, HPSI, or LPSI in the boron injection flowpath required to be functional and able to be powered by an operable emergency power source

(VCT outlet valve V501 should be capable of isolating the VCT from charging pump suction line)

Modes 5 and 6

38
Q

TLCO 3.1.103 - Charging Pumps - Operating

Applicability?

A

At least 2 charging functional

Modes 1-4

39
Q

TLCO 3.4.100 - Auxiliary Spray System

Applicability?

A

Both Auxiliary Spray Valves shall be Functional

Modes 1-4

Aux Spray is required to depress the RCS by cooling the pressurizer to get to SDC. Required on natural circulation cooldowns
Distributes boron

40
Q

T3.1.100, Flow Paths - Shutdown

Applicability?

A

As a minimum, one of the following boron injection flow paths shall be FUNCTIONAL:
a. If only the spent fuel pool in TLCO 3.1.104.a. is FUNCTIONAL, a flow path from the spent fuel pool via a gravity feed connection and a charging pump to the Reactor Coolant System.
b. If only the refueling water tank in Specification 3.1.104.b. is FUNCTIONAL, a flow path from the refueling water tank via either a charging pump, a high-pressure safety injection pump, or a low-pressure safety injection pump to the Reactor Coolant System.

Modes 5 and 6

41
Q

LCO 3.5.5, Refueling Water Tank (RWT)

Applicability?

A

The RWT shall be OPERABLE.

Modes 1-4

42
Q

T3.1.101, Flow Paths - Operating

A

At least two of the following three boron injection flow paths shall be FUNCTIONAL:
a. A gravity feed flow path from either the refueling water tank or the spent fuel pool through CH- 536 (RWT Gravity Feed Isolation Valve) and a charging pump to the Reactor Coolant System,
b. A gravity feed flow path from the refueling water tank through CH-327 (RWT Gravity Feed/Safety Injection System Isolation Valve) and a charging pump to the Reactor Coolant System,
c. A flow path from either the refueling water tank or the spent fuel pool through CH-164 (Boric Acid Filter Bypass Valve), utilizing gravity feed and a charging pump to the Reactor Coolant System.

43
Q

T3.1.104, Borated Sources - Shutdown

Applicability?

A

As a minimum, one of the following borated water sources shall be
FUNCTIONAL:
a. The spent fuel pool
b. The refueling water tank

Modes 5 and 6

44
Q

T3.1.105, Borated Sources - Operating

Applicability?

A

The spent fuel pool shall be FUNCTIONAL

Modes 1-4

45
Q

TLCO 3.3.102 - Incore Detectors

A

The Incore Detection System shall be FUNCTIONAL with:
a. > 75% of incore locations, and
b. > 75% of all incore detectors with at least one incore detector in each
quadrant at each level, and
c. Sufficient FUNCTIONAL incore detectors to perform at least six tilt
estimates with at least one tilt estimate at each of three levels.
d. All 4x4 arrays of fuel assemblies that contain 16 fuel assemblies must
contain at least one FUNCTIONAL incore location.

46
Q

SL 2.1.2, RCS Pressure Safety Limit

Applicability?

A

The RCS pressure shall be maintained at less than or equal to 2750 psia

Modes 1-5

The RCS pressurizer safety valves, the Main Steam Safety Valves (MSSVs), and the Reactor Pressure - High trip have settings established to ensure that the RCS pressure Safety Limit will not be exceeded.

The RCS pressurizer safety valves are sized to prevent system pressure from exceeding the design pressure by more than 10%.

47
Q

LCO 3.4.1, RCS Pressure, Temperature, and Flow Departure from
Nucleate Boiling

Applicability?

When does it NOT apply?

A

RCS DNB parameters for pressurizer pressure, cold leg temperature, and RCS total
flow rate shall be within the limits specified in the COLR.

Mode 1 for RCS total flow rate.
Mode 1 and 2 for pressurizer pressure.
Mode 1 for RCS cold leg temperature (Tcold)
Mode 2 with Keff > 1 for RCS cold leg temperature (Tcold).

Pressurizer pressure limit does not apply during:
a. THERMAL POWER ramp > 5% RTP per minute; or
b. THERMAL POWER step > 10% RTP.

48
Q

LCO 3.4.2, Minimum Temperature for Criticality

Applicability?

A

Each RCS loop temperature (Tcold) shall be 􀂕 545 ºF

Mode 1
Mode 2 with Keff 􀂕 1.0

49
Q

LCO 3.4.4, RCS Loops Modes 1 and 2

Applicability?

A

Two RCS loops shall be OPERABLE and in operation

Modes 1 and 2

Specifying two RCS loops provides the minimum necessary paths (two SGs) for heat removal.

50
Q

LCO 3.4.5, RCS Loops Mode 3

Applicability?

A

Two RCS loops shall OPERABLE and one RCS loop shall be in operation.

Mode 3

A minimum of one running RCP meets the LCO requirement for one loop in operation.

If No RCS loop is operable or no RCS loop is in operation
Stop dilutions and restore IMMEDIATELY

51
Q

LCO 3.4.6, RCS Loops Mode 4

Applicability?

A

Two loops or trains consisting of any combination of RCS loops and shutdown
cooling (SDC) trains shall be OPERABLE and at least one loop or train shall
be in operation.

Mode 4

Notes:
1. All reactor coolant pumps (RCPs) and SDC pumps may be de-energized
for </= 1 hour per 8-hour period, provided:
a. No operations are permitted that would cause reduction of the RCS
boron concentration; and
b. Core outlet temperature is maintained at least 10°F below saturation
temperature.

  1. No RCP shall be started with any RCS cold leg temperature less than or
    equal to the LTOP enable temperature specified in the PTLR unless the
    secondary side water temperature in each Steam Generator (SG) <100°F
    above each of the RCS cold leg temperatures.
  2. No more than 2 RCPs may be in operation with RCS cold leg temperature
    </= 200°F. No more than 3 RCPs may be in operation with RCS cold leg
    temperature >200°F but </= 500°F.
52
Q

LCO 3.4.7, SDC Trains Mode 5 loops filled

Applicability?

A

One Shutdown Cooling (SDC) train shall be OPERABLE and in operation, and
either:
a. One additional SDC train shall be OPERABLE; or
b. The secondary side water level of each Steam Generator (SG) shall be
>/= 25%.

Notes:
The SDC pump of the train in operation may be de-energized for </= 1 hour
per 8 hour period provided:
a. No operations are permitted that would cause reduction of the
RCS boron concentration; and
b. Core outlet temperature is maintained at least 10°F below
saturation temperature.

  1. One required SDC train may be inoperable for up to 2 hours for
    surveillance testing provided that the other SDC train is OPERABLE and in
    operation.
  2. No Reactor Coolant Pump (RCP) shall be started with one or more of the
    RCS cold leg temperatures less than or equal to the LTOP enable
    temperature specified in the PTLR unless the secondary side water
    temperature in each SG is <100°F above each of the RCS cold leg
    temperatures.
  3. No more than 2 RCPs may be in operation with RCS cold leg temperature
    􀂔200°F. No more than 3 RCPs may be in operation with RCS cold leg
    temperature >200°F but 􀂔500°F.
  4. All SDC trains may be removed from operation during planned heatup to
    MODE 4 when at least one RCS loop is in operation.

Mode 5 with loops filled

Can use LPSI or CS (</= 200 degrees F, </= 250 psia can be used.

53
Q

LCO 3.4.8, SDC Trains Mode 5 loops not filled

A

Two Shutdown Cooling (SDC) trains shall be OPERABLE and one SDC train
shall be in operation.

Notes:
All SDC pumps may be de-energized for </=1 hour per 8 hour period:
a. The core outlet temperature is maintained > 10°F below
saturation temperature;
b. No operations are permitted that would cause a reduction of the
RCS boron concentration; and
c. No draining operations to further reduce the RCS water volume
are permitted.

  1. One SDC train may be inoperable for </=2 hours for surveillance testing
    provided the other SDC train is OPERABLE and in operation.
54
Q

LCO 3.4.9, Pressurizer

Applicability?

A

The pressurizer shall be operable with:
a. Pressurizer water level > 27% and < 56% and
b. Two groups of pressurizer heaters operable with the capacity of each
group > 125 KW.

Notes:
The pressurizer water level limit does not apply during:
a. THERMAL POWER ramp > 5% RTP per minute; or
b. THERMAL POWER step > 10% RTP.

Modes 1-3

55
Q

LCO 3.4.10, PZR Safety Modes 1 - 3

A

Four pressurizer safety valves shall be operable with lift settings >/= 2450.25
psia and </= 2549.25 psia.

Modes 1-3

Ensures a steam bubbles exists. Max water level preserves steam space for pressure control. LCO helps minimize the consequences of potential overpressure transients.
–High level- Bubble maintained for pressure control
–Low level- Ensure heaters are covered

56
Q

LCO 3.4.11, PZR Safety Valves Mode 4

A

One pressurizer safety valve shall be operable with a lift setting >/= 2450.25
psia and </= 2549.25 psia.

MODE 4 with all RCS cold leg temperatures greater than the LTOP enable temperature specified in the PTLR. (>/= 221 degrees F)

57
Q

LCO 3.4.12, Pressurizer Vents

Applicability?

A

Four pressurizer vent paths shall be operable.

Modes 1-3
Mode 4 with RCS pressure >/= 385 psia

Vent path is flow capability from the pressurizer to the RDT or from the pressurizer to containment atmosphere. Loss of any single valve in the pressurizer vent system will cause two flow paths to become inoperable. A pressurizer vent path is required to depressurize the RCS in a SGTR design basis event which assumes LOP and Aux spray is unavailable.

58
Q

LCO 3.4.13, LTOP Operability

A

Modes 4-6
○ An LTOP system shall be operable and consist of the following
§ Two operable SDC suction line relief vavles with lift settings </= 467 psig aligned to provide overpressure protection for the RCS.
OR
§ The RCS depressurized and an RCS Vent of >/= 16 square inches
○ Applicability
§ M4- When any RCS cold leg temperature is less than or equal to the LTOP enable temp in the PTLR
§ Mode 5
§ Mode 6- When the RV is on
○ LCO 3.0.4.b is not applicable when entering Mode 4

59
Q

LCO 3.4.14, RCS Operational Leakage

Applicability?

Define identified, unidentified, and pressure boundary leakage

A

RCS operational Leakage shall be limited to:
a. No pressure boundary Leakage
b. 1 gpm unidentified Leakage
c. 10 gpm identified Leakage
d. 150 gals per day primary to secondary Leakage through any one SG.

Modes 1-4

Identified
○ Leakage that is captured and conducted to collection systems, sump, or collection tank
○ Leakage to containment atmosphere
○ Primary to secondary leakage
○ PIV leakage (3.4.15)

Unidentified
○ All leakage that is Not identified

Pressure Boundary
○ Leak through non-isolable fault in RCS component body, pip wall, or vessel wall

60
Q

LCO 3.4.15, RCS PIV Leakage

Applicability?

A

Leakage from each RCS PIV shall be within limits.

Modes 1, 2, and 3
Mode 4, except valves in the shutdown cooling (SDC) flow path when in, or
during the transition to or from, the SDC mode of operation.

61
Q

LCO 3.4.16, RCS Leakage Detection Instrumentation

Applicability?

A

Both of the following RCS leakage detection instrumentation shall be
OPERABLE:
* One containment sump monitor, and
* One containment atmosphere radioactivity monitor (gaseous and
particulate).

Requires instruments of diverse monitoring principles to be OPERABLE to provide a high degree of confidence that extremely small leaks are detected in time to allow actions to place the plant in a safe condition when the RCS leakage indicates a possible RC pressure boundary degradation.

62
Q

LCO 3.4.17, RCS Specific Activity

Applicability?

A

The specific activity of the reactor coolant shall be within limits.

Modes 1-4

These LCO limits are established to minimize the offsite radioactivity dose consequences in the event of a steam generator tube rupture (SGTR) accident.

63
Q

TLCO T3.4.100, Auxiliary Spray

Applicability?

A

Both auxiliary spray valves shall be FUNCTIONAL.

Modes 1-4

64
Q

LCO 3.7.6, Condensate Storage System

A

The CST level shall be greater than or equal to 29.5 ft.

Modes 1-3
Mode 4 when steam generator is relied upon for heat removal.

65
Q

LCO 3.7.16, Secondary Specific Activity

Applicability?

A

Secondary Specific Activity - The specific activity of the secondary coolant shall be
less than or equal to 0.10 microcuries/gram DOSE EQUIVALENT I-131.

Modes 1-4

66
Q

LCO 3.7.6, Condensate Storage Tank

Applicability?

A

The CST level shall be ≥ 29.5 ft.

Modes 1-3
Mode 4 when the steam generator is relied upon for heat removal.

67
Q
A

LOIT (32 decks)

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