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Systems by Topic > Intro to Tech Specs > Flashcards

Intro to Tech Specs Flashcards

1
Q

What are SLMCPR limits for Unit 2?

A

1.07 TLO 1.09 SLO

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2
Q

What is power limited to when pressure < 785psig OR core flow <10%?

A

≤23% RTP

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3
Q

What is Rated thermal Power

A

2923MWt

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4
Q

What actions are required by Tech Specs if a safety limit is violated?

A

Restore limit AND insert all insertable control rods within 2 hours

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5
Q

What actions are required by 10CFR50.36 if a safety limit is violated?

A

Notify NRC Prepare Report to NRC Operation may not be resumed until authorized by NRC

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6
Q

What is SL RPV pressure?

A

1325 psig steam dome pressure (1375 psig bottom head pressure)

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7
Q

What is SL RPV level?

A

Reactor vessel water level shall be greater than the top of active irradiated fuel.

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8
Q

Define ACTIONS per Tech Specs

A

ACTIONS shall be that part of a Specification that prescribes Required Actions to be taken under designated Conditions within specified Completion Times.

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9
Q

Define AVERAGE PLANAR LINEAR HEAT GENERATION RATE (APLHGR) per Tech Specs

A

The APLHGR shall be applicable to a specific planar height and is equal to the sum of the heat generation rate per unit length of fuel rod for all the fuel rods in the specified bundle at the specified height divided by the number of fuel rods in the fuel bundle at the height.

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10
Q

Define CHANNEL CALIBRATION per Tech Specs

A

A CHANNEL CALIBRATION shall be the adjustment, as necessary, of the channel output such that it responds within the necessary range and accuracy to known values of the parameter that the channel monitors. The CHANNEL CALIBRATION shall encompass the entire channel, including the required sensor, alarm, display, and trip functions, and shall include the CHANNEL FUNCTIONAL TEST. Calibration of instrument channels with resistance temperature detector (RTD) or thermocouple sensors may consist of an inplace qualitative assessment of sensor behavior and normal calibration of the remaining adjustable devices in the channel. The CHANNEL CALIBRATION may be performed by means of any series of sequential, overlapping, or total channel steps so that the entire channel is calibrated.

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11
Q

Define CHANNEL CHECK per Tech Specs

A

A CHANNEL CHECK shall be the qualitative assessment, by observation, of channel behavior during operation. This determination shall include, where possible, comparison of the channel indication and status to other indications or status derived from independent instrument channels measuring the same parameter.

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12
Q

Define CHANNEL FUNCTIONAL TEST per Tech Specs

A

A CHANNEL FUNCTIONAL TEST shall be the injection of a simulated or actual signal into the channel as close to the sensor as practicable to verify OPERABILITY, including required alarm, interlock, display, trip functions, and channel failure trips. The CHANNEL FUNCTIONAL TEST may be performed by means of any series of sequential, overlapping, or total channel steps so that the entire channel is tested.

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13
Q

Define CORE ALTERATION per Tech Specs

A

CORE ALTERATION shall be the movement of any fuel, sources, or reactivity control components, within the reactor vessel with the vessel head removed and fuel in the vessel. The following exceptions are not considered to be CORE ALTERATIONS: a. Movement of source range monitors, local power range monitors, intermediate range monitors, traversing incore probes, or special movable detectors (including undervessel replacement); and b. Control rod movement, provided there are no fuel assemblies in the associated core cell. Suspension of CORE ALTERATIONS shall not preclude completion of movement of a component to a safe position.

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14
Q

Define CORE OPERATING LIMITS REPORT (COLR) per Tech Specs

A

The COLR is the unit specific document that provides cycle specific parameter limits for the current reload cycle. These cycle specific limits shall be determined for each reload cycle in accordance with Specification 5.6.5. Plant operation within these limits is addressed in individual Specifications.

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15
Q

Define DOSE EQUIVALENT I-131 per Tech Specs

A

DOSE EQUIVALENT I-131 shall be that concentration of I-131 (microcuries/gram) that alone would produce the same dose as the quantity and isotopic mixture of I-131, I-132, I-133, I-134, and I-135 actually present. The dose conversion factors used for this calculation shall be those listed in Federal Guidance Report (FGR) 11, “Limiting Values of Radionuclide Intake and Air Concentration and Dose Conversion Factors for Inhalation, Submersion, and Ingestion,” 1989 and FGR 12, “External Exposure to Radionuclides in Air, Water, and Soil,” 1993.

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16
Q

Define EMERGENCY CORE COOLING SYSTEMS (ECCS) RESPONSE TIME per Tech Specs

A

The ECCS RESPONSE TIME shall be that time interval from when the monitored parameter exceeds its ECCS initiation setpoint at the channel sensor until the ECCS equipment is capable of performing its safety function (i.e., the valves travel to their required positions, pump discharge pressures reach their required values, etc.). Times shall include diesel generator starting and sequence loading delays, where applicable. The response time may be measured by means of any series of sequential, overlapping, or total steps so that the entire response time is measured.

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17
Q

Define ISOLATION INSTRUMENTATION RESPONSE TIME per Tech Specs

A

The ISOLATION INSTRUMENTATION RESPONSE TIME shall be that time interval from when the monitored parameter exceeds its isolation initiation setpoint at the channel sensor until the isolation valves receive the isolation signal (e.g., de-energization of the MSIV solenoids). The response time may be measured by means of any series of sequential, overlapping, or total steps so that the entire response time is measured.

18
Q

Define LEAKAGE per Tech Specs

A

LEAKAGE shall be: a. Identified LEAKAGE 1. LEAKAGE into the drywell, such as that from pump seals or valve packing, that is captured and conducted to a sump or collecting tank; or 2. LEAKAGE into the drywell atmosphere from sources that are both specifically located and known either not to interfere with the operation of leakage detection systems or not to be pressure boundary LEAKAGE; b. Unidentified LEAKAGE All LEAKAGE into the drywell that is not identified LEAKAGE; c. Total LEAKAGE Sum of the identified and unidentified LEAKAGE; and d. Pressure Boundary LEAKAGE LEAKAGE through a nonisolable fault in a Reactor Coolant System (RCS) component body, pipe wall, or vessel wall.

19
Q

Define LINEAR HEAT GENERATION RATE (LHGR) per Tech Specs

A

The LHGR shall be the heat generation rate per unit length of fuel rod. It is the integral of the heat flux over the heat transfer area associated with the unit length.

20
Q

Define LOGIC SYSTEM FUNCTIONAL TEST per Tech Specs

A

A LOGIC SYSTEM FUNCTIONAL TEST shall be a test of all required logic components (i.e., all required relays and contacts, trip units, solid state logic elements, etc.) of a logic circuit, from as close to the sensor as practicable up to, but not including, the actuated device, to verify OPERABILITY. The LOGIC SYSTEM FUNCTIONAL TEST may be performed by means of any series of sequential, overlapping, or total system steps so that the entire logic system is tested.

21
Q

Define MINIMUM CRITICAL POWER RATIO (MCPR) per Tech Specs

A

The MCPR shall be the smallest critical power ratio (CPR) that exists in the core. The CPR is that power in the assembly that is calculated by application of the appropriate correlation(s) to cause some point in the assembly to experience boiling transition, divided by the actual assembly operating power.

22
Q

Define MODE per Tech Specs

A

A MODE shall correspond to any one inclusive combination of mode switch position, average reactor coolant temperature, and reactor vessel head closure bolt tensioning specified in Table 1.1-1 with fuel in the reactor vessel.

23
Q

Define OPERABLE-OPERABILITY per Tech Specs

A

A system, subsystem, division, component, or device shall be OPERABLE or have OPERABILITY when it is capable of performing its specified safety function(s) and when all necessary attendant instrumentation, controls, normal or emergency electrical power, cooling and seal water, lubrication, and other auxiliary equipment that are required for the system, subsystem, division, component, or device to perform its specified safety function(s) are also capable of performing their related support function(s).

24
Q

Define REACTOR PROTECTION SYSTEM (RPS) RESPONSE TIME per Tech Specs

A

The RPS RESPONSE TIME shall be that time interval from when the monitored parameter exceeds its RPS trip setpoint at the channel sensor until de-energization of the scram pilot valve solenoids. The response time may be measured by means of any series of sequential, overlapping, or total steps so that the entire response time is measured.

25
Q

Define SHUT DOWN MARGIN (SDM) per Tech Specs

A

SDM shall be the amount of reactivity by which the reactor is subcritical or would be subcritical assuming that: a. The reactor is xenon free; b. The moderator temperature is 68°F; and c. All control rods are fully inserted except for the single control rod of highest reactivity worth, which is assumed to be fully withdrawn. With control rods not capable of being fully inserted, the reactivity worth of these control rods must be accounted for in the determination of SDM.

26
Q

Define STAGGERED TEST BASIS per Tech Specs

A

A STAGGERED TEST BASIS shall consist of the testing of one of the systems, subsystems, channels, or other designated components during the interval specified by the Surveillance Frequency, so that all systems, subsystems, channels, or other designated components are tested during n Surveillance Frequency intervals, where n is the total number of systems, subsystems, channels, or other designated components in the associated function.

27
Q

Define THERMAL POWER per Tech Specs

A

THERMAL POWER shall be the total reactor core heat transfer rate to the reactor coolant.

28
Q

Define TURBINE BYPASS SYSTEM RESPONSE TIME per Tech Specs

A

The TURBINE BYPASS SYSTEM RESPONSE TIME consists of two components: a. The time from initial movement of the main turbine stop valve or control valve until 80% of the turbine bypass capacity is established; and b. The time from initial movement of the main turbine stop valve or control valve until initial movement of the turbine bypass valve. The response time may be measured by means of any series of sequential, overlapping, or total steps so that the entire response time is measured.

29
Q

What are the 4 Rx Safety Limits and when do they apply?

A
  1. With the Rx steam dome pressure < 785 psig OR core flow < 10%, Thermal Power shall be < or = 23% RTP. 2. With the Rx steam dome pressure > or = 785 psig AND core flow > or = 10%, MCPR shall be: Unit 1: 1.08 for two loop ops 1.11 for single loop ops Unit 2: 1.07 for two loop ops 1.09 for single loop ops 3. Rx water level shall be greater than top of active fuel. 4. Rx steam dome pressure shall be < or = 1325 psig.
30
Q

What actions must be taken if Rx Pressure goes over 1045#?

A

Restore w/in 15 minutes or in M3 in 12 hrs

31
Q

What actions must be taken if Rx steam dome Pressure goes over 1325#?

A

Rods in w/in 2 hrs

32
Q

What is Mode 1 used for and what are the requirements to be in it?

A

Mode 1 - Used for Power Operations Mode Switch - RUN Avg Coolant Temp - N/A Vessel Head Bolts - Tensioned

33
Q

What is Mode 2 used for and what are the requirements to be in it?

A

Mode 2 - Used for Start Up Mode Switch - Refuel OR S/U Hot Stby Avg Coolant Temp - N/A Vessel Head Bolts - Tensioned

34
Q

What is Mode 3 used for and what are the requirements to be in it?

A

Mode 3 - Used for Hot S/D Mode Switch - S/D Avg Coolant Temp - >212 Vessel Head Bolts - Tensioned

35
Q

What is Mode 4 used for and what are the requirements to be in it?

A

Mode 4 - Used for Cold S/D Mode Switch - S/D Avg Coolant Temp - < or = 212 Vessel Head Bolts - Tensioned

36
Q

What is Mode 5 used for and what are the requirements to be in it?

A

Mode 5 - Used for Refueling Mode Switch - S/D or Refuel Avg Coolant Temp - NA Vessel Head Bolts - De-Tensioned

37
Q

What is the T.S. temperature limit for the Drywell in mode 1, 2, &3?

A

<=150dF

38
Q

What is the T.S. limit for the suppression pool temperature when no testing adding heat is being performed?

A

<=95dF

39
Q

What is the T.S. limit for the suppression pool temperature when testing adding heat is being performed?

A

<=105dF

40
Q

What are SLMCPR limits for Unit 1?

A

1.08 TLO 1.11 SLO

Systems by Topic (14 decks)

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