Systems 1 Tech Specs Flashcards
(80 cards)
1
Q
4 Criteria for Items that Must Have Tech Specs
Criterion 1
A
instruments that detect significant degradation of the Reactor Coolant Pressure Boundary
2
Q
4 Criteria for Items that Must Have Tech Specs
Criterion 2
A
initial conditions for design basis accidents or transients
3
Q
4 Criteria for Items that Must Have Tech Specs
Criterion 3
A
structure, system, or component that mitigates a design basis accident or transient
4
Q
4 Criteria for Items that Must Have Tech Specs
Criterion 4
A
structure, system, or component that is significant to public health and safety
5
Q
What is CHANNEL CHECK?
A
qualitative assessment of channel behavior during operation, i.e. comparing a channel’s status and indication to other channels that measure the same thing
6
Q
What is CORE ALTERATION?
A
moving fuel, sources, or reactivity components within the reactor vessel when the vessel head is removed and there is fuel in the vessel
NOTE: “Suspension of CORE ALTERATIONS” doesn’t block anyone from moving a component to a safe position
7
Q
What is No Mode?
A
defueled
8
Q
What is LEAKAGE?
A
Identified, Unidentified, or Pressure Boundary LEAKAGE
9
Q
What is OPERABLE or OPERABILITY?
A
A system, subsystem, train, component, or device shall be OPERABLE or have OPERABILITY when it is capable of performing its specified safety function(s) and when all required related/supporting equipment is also capable of performing related support functions.
(Required/related equipment = necessary instrumentation, controls, normal or emergency electrical power, cooling and seal water, lubrication, and other auxiliary equipment.)
10
Q
What is STAGGERED TEST BASIS?
A
staggering the testing of components in a particular system (or other group of components) during the required surveillance interval so that all the components are tested within the time frame, but they don’t all have to be tested at once
11
Q
What is MODE?
A
Basically gives the operating status of the plant when fuel is present in the reactor through a combination of:
→core reactivity condition
→power level
→avg RCS temp
→reactor vessel head closure bolt tensioning
12
Q
How are the Tech Specs structured?
A
“USLDA”
Section 1 - Use and Application
Section 2 - Safety Limits
Section 3 - LCO/SR Applicability
Section 4 - Design Features
Section 5 - Administrative Controls
13
Q
Mode 1
A
Power Operation
> 5% power
k-eff ≥ 0.99
14
Q
Mode 2
A
Startup
≤ 5% power
k-eff ≥ 0.99
15
Q
Mode 3
A
Hot Standby
RCS T-avg ≥ 350
k-eff < 0.99
16
Q
Mode 4
A
Hot Shutdown
200 < RCS T-avg < 350
k-eff < 0.99
(all reactor vessel head closure bolts fully tensioned)
17
Q
Mode 5
A
Cold Shutdown
RCS T-avg ≤ 200
k-eff < 0.99
(all reactor vessel head closure bolts fully tensioned)
18
Q
Mode 6
A
Refueling
RCS T-avg, % power, and k-eff are all N/A
One or more reactor vessel head closure bolts are less than fully tensioned.
19
Q
What is identified LEAKAGE?
A
“SAP” - Sump, Atmosphere, Primary (to secondary)
→LEAKAGE like from pump seals or valve packing (except RCP seal water injection or leakoff) that is captured in a sump or collection system
→LEAKAGE into the containment atmosphere from sources that:
→the specific location is identified and
→they don’t interfere with leakage detection systems
→are not pressure boundary leakage
→RCS LEAKAGE through a steam generator to the secondary system (primary to secondary)
20
Q
What is unidentified LEAKAGE?
A
all LEAKAGE (except from RCP seal water injection or leakoff) that is not identified LEAKAGE
21
Q
What is pressure boundary LEAKAGE?
A
LEAKAGE (except primary to secondary) through a non-isolable fault in an RCS component body, pipe wall, or vessel wall
22
Q
LCO 3.0.1
A
LCOs must be met when applicable
23
Q
LCO 3.0.2
A
When an LCO is not met, enter all applicable Conditions and complete the Required Actions within the stated Completion Time
“The second shoe drops.”
24
Q
LCO 3.0.3
A
If Required Actions/Completion Times are not met or no applicable Conditions are provided, place the plant in a MODE or other specified condition where the LCO does not apply
25
LCO 3.0.4
Entering the Applicability of an LCO when that LCO is not met is only allowed under one of the following conditions:
a) Required Actions allow unlimited operation
b) A risk assessment is performed
c) An exception is stated in the specification
26
LCO 3.0.5
Provides an exception to LCO 3.0.2 for the performance of OPERABILITY testing
| "5-2 running back"
27
LCO 3.0.6
Supported system Required Actions do not need to be performed when the support system is inoperable
| "Six Supported Systems"
28
LCO 3.0.7
Provides the justification to suspend certain LCOs during the performance of Physics Testing, by using LCO 3.1.8.
29
SR 3.0.1
Surveillances must be met when the LCO is applicable
30
SR 3.0.2
Allows a 25% extension for Surveillance Frequencies and for Required Actions with Completion Times stated as "once per..." The extension is not allowed for Frequencies stated as "once" or the first performance of a "once per..." Completion Time.
| "Two is for 25"
31
SR 3.0.3
Allows an additional 24 hours or the limit of the specified Frequency, whichever is greater, to perform an SR that was discovered to not be performed prior to declaring the LCO not met.
| "24 divided by 3"
32
SR 3.0.4
Entering the Applicability of an LCO is only allowed when the SRs have been met within their specified Frequency
| "Four for Frequency"
33
Is the TRM an LBD, and how is it revised?
Yes, it's considered an LBD, but it is NOT a part of Tech Specs.
Revision requires SORC and Plant Manager approval as long as the changes meet 50.59SC. Otherwise, NRC approval is req'd.
| "M & M" TRM and Manager
34
Describe LCO applicability in the TS as it compares to the TRM.
Same except there is no 3.0.3 and 3.0.6 in the TRM. For 3.0.3 the TRM either:
1. Directs user to TS
2. Has applicable actions in them
3. Need an IR written but a shutdown is not req'd
35
How is the ODCM revised?
Revision requires SORC and Site VP approval
The ODCM is considered a support document for Tech Specs.
| "C, S & S" = SORC and Site VP
36
Dose from Liquid Effluents to the public (from each unit)
→per calendar quarter: < 1.5 mrem to the whole body, and < 5 mrem to any organ
→per calendar year: < 3 mrem to the whole body, and < 10 mrem to any organ
37
Dose Rate from Gaseous Effluents to the public (from each unit)
Noble Gasses:
→ <500 mrems/yr to the total body
→ <3,000 mrems/yr to the skin
Particulate nuclides w/half-lives >8 days (I-131/133, H3, etc.):
→ <1,500 mrems/yr to any organ
38
Dose from Gaseous Effluents to the public (from each unit)
Noble Gasses:
→per calendar quarter: <5 mrads gamma, <10 mrads beta
→per calendar year: <10 mrads gamma, < 20 mrads beta
Particulate nuclides w/half-lives >8 days (I-131/133, H3, etc.):
→per calendar quarter: <7.5 mr to any organ
→per calendar year: <15 mr
39
What is the Process Control Program?
→Provide reasonable assurance that the processing and packaging of liquid or wet radioactive wastes into a solid form at CPNPP is accomplished in accordance with Federal and State regulations regarding radioactive waste form requirements for near-surface disposal
→Procedural guidance provided by STA-713
40
3 Reactor Site Criteria Considerations (10CFR100)
1. Characteristics of reactor design and proposed operation.
2. Population density and land use in the vicinity of the site.
3. Physical characteristics of the site including geology, seismology, meteorology, and hydrology
41
For Control Room staffing, what mode is considered "operating"?
Modes 1-4
42
How many watches must be stood to maintain an Active Status?
seven 8-hour shifts per quarter or five 12-hour shifts per calendar quarter
(partial shifts don't count)
43
Define a "Control" per 10CFR50
"Control" means any apparatus or mechanism that, if manipulated, directly affects the reactivity or power level of the reactor
44
Define RCS Pressure Boundary per 10CFR50
"Reactor Coolant System Pressure Boundary" is all pressure-containing components, such as pressure vessels, piping, pumps, and valves which are part of the reactor coolant system or are connected to the reactor coolant system, up to and including:
1. The outermost containment isolation valve in system piping which penetrates the primary reactor containment, or
2. The second of two valves normally closed during normal reactor operation in system piping which does not penetrate the primary reactor containment, or
3. The reactor coolant system safety and relief valves
45
1-hour Reports
→any emergency classification
→invoking 50.54(x)
(-Security Reportable event)
(-Cyber attack)
46
4-hour Reports
→valid ECCS actuation
→valid RPS actuation w/critical Rx
→any event requiring new release or notification to an offsite agency
→any shutdown driven by tech specs
47
8-hour Reports
→loss of emergency assessment capability
→any event resulting in a degraded plant or unanalyzed condition
→valid ESF actuation signal:
RPS w/ Rx not critical
CNTMT isolation or MSIV isolation
AFW
CNTMT Spray
EDG auto start
ECCS
→any event or condition that could have prevented a safety function
→transport of a radioactively contaminated person offsite
48
In the event of a death on site...
Notify OSHA in 4 hours.
Notify the NRC in 8 hours.
(per STA-501)
49
Event Discovery Date
the date or time which starts the clock for reports due to regulatory agencies
(typically the date that a CPNPP worker identifies a problem or an issue)
(if the problem requires an engineering evaluation to determine operability or significance, the Event Discovery Date is the date the engineering evaluation is completed)
50
Safeguards Event
any incident representing and attempted, threatened, or actual breach of the safeguards system or reduction of the operational effectiveness of that system
51
Byproduct Material
any radioactive material (except special nuclear material) yielded in or made radioactive by exposure to the radiation incident to the process of producing or utilizing special nuclear material.
52
Special Nuclear Material
Plutonium, Uranium 233, Uranium enriched with the isotope 233 or isotope 235, and any other material (fuel).
53
Top 3 High Safety Significance Components (HSSCs)
1. TDAWFP
2. SSWPs
3. EDGs
54
Define Operability
→provides the specified safety function and support functions
→expected to perform as designed, tested, and maintained
→has all necessary attendant instrumentation, controls, normal or emergency electrical power, cooling and seal water, lubrication, and other auxiliary equipment
55
Master Surveillance Test List (MSTL)
a document listing the implementing and trigger procedures, programs and administrative processes satisfying the test and inspection requirements of Technical Specifications, the TRM, Part I of the ODCM and the IST Plan
(applicable Modes and frequencies are also indicated)
56
Is repetitive SR testing allowable?
No, but you can recalibrate test instruments and then repeat pump or valve tests.
(equipment must still be declared inoperable as soon as the data is recognized as being outside the acceptance criteria)
57
Does Maintenance invalidate previous SR results?
Not necessarily, per Ops GL 18, Att. 5.
58
Controlled LCO Action Entry
Voluntary entry into LCO Actions for various reasons, including testing and corrective or preventive maintenance; shall be authorized by the Shift Operations Manager, Shift Manager, or as part of a planned schedule.
59
What does "available" mean?
→Safety Significant Component (SSC) is capable of performing its specified function(s) to support operation of plant systems or plant evolutions
→status is used to provide a "defense in depth" measure to assure the availability of functions necessary to support the present operational condition of the plant →available implies the equipment is functional but does not satisfy OPERABILITY requirements.
60
Systems Important to Safety Log (SISL)
A form or electronic program entry used to track selected Out-Of-Service equipment for systems not required by Tech Specs, TRM or the ODCM, but are considered as directly impacting plant safety.
→AMSAC →Instrument Air
→Spent Fuel Pool Cooling →RMUW
→Safeguard Sump Pumps →Fire Protection Equipment
→Emergency Lighting →Plant Computer
→Major valves associated →Limitorque Motor Operated Valves
with ERG support requiring cable ties to restrain
the declutch levers
No Technical Specification equipment may be entered into this log.
61
Tracking LCOARs
Are used to track conditions affecting SSCs where entry into the applicable LCO is not required
62
Outage LCOARs
Should be closed or converted to an Active or Tracking LCOAR as required prior to the Applicability required by the associated SSC LCO
(previously had a Mode 2 closure requirement, but no longer has any Mode restrictions due to various Mode 1 hot torques)
63
Loss of Safety Function
Lost both trains. An Operability determination is performed to establish which LCO(s) are not met, then SFD is performed for support system.
For the purpose of the Safety Function Determination Program (SFDP), a LOSF may exist when a Support System is inoperable, and:
1. A required system redundant to the system(s) supported by the inoperable Support System is also inoperable; or
2. A required system redundant to the system(s) in turn supported by the inoperable Supported System is also inoperable; or
3. A required system redundant to the Support System(s) for the Supported Systems A) and B) above is also inoperable.
64
Mission Time
The time duration for SSC operation that is credited in the design basis for the SSC to perform its specified safety function.
The term "mission time" is not routinely used in the TS Bases or FSAR; however, the description of the affected SSC's or support SSC's (SSC supporting the functions of the affected SSC) Specified Function/Specified Safety Function can be utilized to determine the time duration credited for the affected SSC. Per STI-422.01.
65
Tech Spec 3.8.1 AC Sources - Operating
→Modes 1-4
→two offsite sources must be available
→two DGs must be available
→automatic load sequencers for Train A and Train B
Two offsite sources can be satisfied by:
→"Stephen Parker" - 138 kV Stephenville with 345 kV Parker #1 OR Parker #2
→"Number 2 Bends" - 138 kV Carmichael Bend with any 345 kV line except for Mitchell Bend
(138 kV Stephenville line crosses all 345 kV lines other than Parker 1 and 2)
66
Tech Spec 3.8.2 AC Sources - Shutdown
→Modes 5 & 6
→one offsite source must be available
→one DG must be available
67
What happens if we don't satisfy Tech Spec 3.8.1 (AC Sources - Operating, Modes 1-4)?
1 Hour or Less Actions
→LCO 3.8.1.A One required offsite source inoperable: SR 3.8.1.1 (same as OPT-215) with completion time of one hour AND once per 8 hours thereafter
→LCO 3.8.1.B One required DG inoperable: SR 3.8.1.1 (same as OPT-215) with completion time of one hour AND once per 8 hours thereafter
→LCO 3.8.1.C Two required offsite circuits inoperable: restore one required offsite circuit to operable within 24 hours
→LCO3.8.1.H Three or more required AC sources inoperable: enter TS LCO 3.0.3 immediately
68
What happens if we don't satisfy Tech Spec 3.8.2 (AC Sources - Shutdown, Modes 5-6) with regard to offsite sources?
1 Hour or Less Actions
LCO 3.8.2.A - One required offsite source inoperable
NOTE: Enter applicable Conditions and Required Actions of LCO 3.8.10, with the required train de-energized as a result of Condition A.
→A.1: Declare affected required feature(s) with no offsite power available inoperable immediately OR
→A.2.1: Suspend CORE ALTERATIONS immediately AND
→A.2.2: Suspend movement of irradiated fuel assemblies immediately AND
→A.2.3: Suspend operations involving positive reactivity additions that could result in loss of required SDM or boron concentration immediately AND
→A.2.4: Initiate action to restore required offsite power circuit to OPERABLE status immediately
69
What happens if we don't satisfy Tech Spec 3.8.2 (AC Sources - Shutdown, Modes 5-6) with regard to diesel generators?
LCO 3.8.2.B One required DG inoperable
→B.1: Suspend CORE ALTERATIONS immediately AND
→B.2: Suspend movement of irradiated fuel assemblies immediately AND
→B.3: Suspend operations involving positive reactivity additions that could result in loss of required SDM or boron concentration immediately AND
→B.4: Initiate action to restore required DG to OPERABLE status immediately
70
Tech Spec 3.3.5 Loss of Power (LOP) Diesel Generator (DG) Start Instrumentation (Modes 1-4)
Two channels per bus for the Preferred offsite source bus undervoltage function inoperable
→Restore one channel per bus to OPERABLE status within 1 hour
OR
→Declare the Preferred offsite source inoperable within 1 hour
Two channels per bus for the Alternate offsite source bus undervoltage function inoperable
→Restore one channel per bus to OPERABLE status within 1 hour
OR
→Declare the Alternate offsite source inoperable within 1 hour
Two channels per bus for the 6.9 kV bus loss of voltage function inoperable
→Restore one channel per bus to OPERABLE status within 1 hour
OR
→Declare the affected AC emergency buses inoperable within 1 hour
Two channels per bus for one or more degraded voltage or low grid undervoltage function inoperable
→Restore one channel per bus to OPERABLE status within 1 hour
OR
→Declare both offsite power source buses inoperable within 1 hour
One or more Automatic Actuation Logic and Actuation Relays trains inoperable
→Restore train(s) to OPERABLE status within 1 hour
Required Action and associated Completion Time not met
→Enter applicable Condition(s) and Required Action(s) for the associated DG made inoperable by LOP DG start instrumentation immediately
71
Tech Spec 3.8.9 Distribution System Operating (Modes 1-4)
Train A and Train B AC, DC, and AC vital bus electrical power distribution subsystem shall be OPERABLE (Modes 1-4)
One AC electrical power distribution system inoperable
→restore AC electrical power distribution subsystem to OPERABLE status within 8 hours
Two trains with inoperable distribution subsystems that result in a loss of safety function
→enter TS LCO 3.0.3 immediately
72
Tech Spec 3.8.10 Distribution System Shutdown (Modes 5-6)
The necessary portion of the Train A or Train B AC, DC, and AC vital bus electrical power distribution subsystems shall be OPERABLE to support one train of equipment required to be OPERABLE. (Modes 5-6).
1 hour or less, actions:
One or more required AC, DC, or AC vital bus electrical power distribution subsystems inoperable
→Declare associated supported required feature(s) inoperable
OR
→Suspend CORE ALTERATIONS immediately
AND
→Suspend movement of irradiated fuel assemblies immediately
AND
→Suspend operations involving positive reactivity additions that could result in loss of required SDM or boron concentration immediately
AND
→Initiate actions to restore required AC, DC, and AC vital bus electrical power distribution subsystems to OPERABLE status immediately
AND
→Declare associated required residual heat removal subsystem(s) inoperable and not in operation immediately
73
Tech Spec 3.8.1 AC Sources - Operating
→Modes 1-4
→two offsite sources must be available
→two DGs must be available
→automatic load sequencers for Train A and Train B
Two offsite sources can be satisfied by:
→"Stephen Parker" - 138 kV Stephenville with 345 kV Parker #1 OR Parker #2
→"Number 2 Bends" - 138 kV Carmichael Bend with any 345 kV line except for Mitchell Bend
(138 kV Stephenville line crosses all 345 kV lines other than Parker 1 and 2)
74
Tech Spec 3.8.2 AC Sources - Shutdown
→Modes 5 & 6
→one offsite source must be available
→one DG must be available
75
Tech Spec 3.7.20 UPS HVAC System Modes 1-4
Two UPS HVAC System Trains shall be OPERABLE (Modes 1-4)
One UPS HVAC System train inoperable
→verify the affected UPS & Distribution Room is supported by an OPERABLE UPS A/C Train immediately
AND
→restore the inoperable UPS HVAC train to OPERABLE status within 30 days
76
Tech Spec 3.8.7 Inverters Operating (Modes 1-4)
The required Train A and Train B inverters shall be OPERABLE (Modes 1-4)
NOTE: Inverters may be disconnected from one DC bus for ≤ 24 hours to perform an equalizing charge on their associated common battery, provided:
→The associated AC vital bus(es) are energized; and
→All other AC vital buses are energized from their associated OPERABLE inverters
77
Tech Spec 3.8.8 Inverters Shutdown (Modes 5-6)
The Train A or Train B inverters shall be OPERABLE to support one train of the onsite Class 1E AC vital bus electrical power distribution subsystems required by LCO 3.8.10, "Distribution Systems - Shutdown." (Modes 5-6)
1 hour or less, actions:
One or more required inverters inoperable
→Declare affected required feature(s) inoperable immediately
OR
→Suspend CORE ALTERATIONS immediately
AND
→Suspend movement of irradiated fuel assemblies immediately
AND
→Suspend operations involving positive reactivity additions that could result in loss of required SDM or boron concentration immediately
AND
→Initiate action to restore required inverters to OPERABLE status immediately
78
Tech Spec 3.8.9 Distribution System Operating (Modes 1-4)
Train A and Train B AC, DC, and AC vital bus electrical power distribution subsystem shall be OPERABLE (Modes 1-4)
One AC electrical power distribution system inoperable
→restore AC electrical power distribution subsystem to OPERABLE status within 8 hours
Two trains with inoperable distribution subsystems that result in a loss of safety function
→enter TS LCO 3.0.3 immediately
79
Tech Spec 3.8.10 Distribution System Shutdown (Modes 5-6)
The necessary portion of the Train A or Train B AC, DC, and AC vital bus electrical power distribution subsystems shall be OPERABLE to support one train of equipment required to be OPERABLE. (Modes 5-6).
1 hour or less, actions:
One or more required AC, DC, or AC vital bus electrical power distribution subsystems inoperable
→Declare associated supported required feature(s) inoperable
OR
→Suspend CORE ALTERATIONS immediately
AND
→Suspend movement of irradiated fuel assemblies immediately
AND
→Suspend operations involving positive reactivity additions that could result in loss of required SDM or boron concentration immediately
AND
→Initiate actions to restore required AC, DC, and AC vital bus electrical power distribution subsystems to OPERABLE status immediately
AND
→Declare associated required residual heat removal subsystem(s) inoperable and not in operation immediately
80
Which Tech Specs apply to the EDG system?
TS 3.8.1 - Requires OPT-215 when declaring an EDG inoperable (Modes 1-4)
TS 3.8.2 - one required offsite source and one required DG operable (Modes 5-6); if not met, check 6.9 kV and 480 VAC flashcard deck for actions
TS 3.8.3 - 7 day fuel oil and lube oil requirements, 48 hours to complete, if not met then declare EDG inoperable
TR 13.8.31 - AC Sources (Diesel Generator Requirements) - This TR LCO contains the surveillance requirements and associated actions for DG surveillances that are not absolutely necessary for EDG OPERABILITY, but still a good idea to be performed. It includes certain 18 month and 10 year TRS’s that send you to the applicable Tech Spec if not met.
