Tech Specs Flashcards
(28 cards)
What is the Reactor Core Safety Limit (TS 2.1.1)?
2.1.1.1 In MODES 1 and 2, the combination of THERMAL POWER, pressurizer pressure, and the highest operating loop cold leg coolant temperature shall not exceed the limits shown in Figure 2.1.1-1.
2.1.1.2 In MODES 1 and 2, peak fuel centerline temperature shall be maintained below fuel melt temperature limits specified in the COLR.
If SL 2.1.1 is violated, restore compliance and be in MODE 3 within 1 hour.
What is the Reactor Coolant System Pressure Safety Limit (TS 2.1.2)?
In MODES 1, 2, 3, 4, and 5, the RCS pressure shall be maintained ≤ 2750 psia.
If SL 2.1.2 is violated:
2.2.2.1 In MODE 1 or 2, restore compliance and be in MODE 3 within 1 hour.
2.2.2.2 In MODE 3, 4, or 5, restore compliance within 5 minutes.
Describe LCO 3.0.3.
LCO 3.0.3
When an LCO is not met and the associated ACTIONS are not met, an associated ACTION is not provided, or if directed by the associated ACTIONS, the unit shall be placed in a MODE or other specified condition in which the LCO is not applicable. Action shall be initiated within 1 hour to place the unit, as applicable, in:
a. MODE 3 within 7 hours,
b. MODE 4 within 13 hours, and
c. MODE 5 within 37 hours.
Exceptions to this Specification are stated in the individual Specifications.
Where corrective measures are completed that permit operation in accordance with the LCO or ACTIONS, completion of the actions required by LCO 3.0.3 is not required.
LCO 3.0.3 is only applicable in MODES 1, 2, 3, and 4.
Describe LCO 3.0.4.
LCO 3.0.4
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 or other specified condition in the Applicability for an unlimited period of time;
b. After performance of a risk assessment addressing inoperable systems and components, consideration of the results, determination of the acceptability of entering the MODE or other specified condition in the Applicability, and establishment of risk management actions, if appropriate (exceptions to this Specification are stated in the individual Specifications); or
c. When an allowance is stated in the individual value, parameter, or other Specification.
This Specification shall not prevent changes in MODES or other specified conditions in the Applicability that are required to comply with ACTIONS or that are part of a shutdown of the unit.
Describe the SDM Tech Spec (LCO 3.1.1).
LCO 3.1.1
SDM shall be within the limits specified in the COLR.
APPLICABILITY: MODES 3, 4, and 5.
If SDM is not within limits,
Initiate boration to restore SDM to within limits
In 15 minutes
Describe the MTC Tech Spec (LCO 3.1.3).
LCO 3.1.3
The MTC shall be maintained within the limits specified in the COLR. The maximum positive limit shall be:
a. {+7} [+5] pcm/°F with THERMAL POWER ≤ 70% RTP, and
b. {+2 pcm/°F with THERMAL POWER > 70% RTP}
b. [+5 pcm/°F with THERMAL POWER at 70% RTP with a linear decrease to 0 pcm/°F at 100% RTP.]
APPLICABILITY: MODES 1 and 2.
If MTC is not within limits,
Be in MODE 3
In 6 hours
Describe the CEA alignment Tech Spec (LCO 3.1.4).
LCO 3.1.4 All CEAs shall be OPERABLE.
AND
All CEAs shall be aligned to within {7.5} [7] inches (indicated position) of their respective group, and the CEA block circuit and the CEA deviation circuit shall be OPERABLE.
APPLICABILITY: MODES 1 and 2.
If One or more CEAs misaligned from its group by > {7.5} [7] inches and < 15 inches.
Restore CEAs to within alignment limit
In 2 hours
If One CEA misaligned from its group by ≥ 15 inches.
Restore CEA alignment to < 15 inches.
In accordance with the COLR.
Describe the Shutdown CEA Insertion Limits Tech Spec (LCO 3.1.5).
LCO 3.1.5
All shutdown CEAs shall be withdrawn to ≥ 129 inches.
APPLICABILITY: MODE 1, MODE 2 with any regulating CEA not fully inserted.
If One or more shutdown CEAs not within limit.
Restore shutdown CEA(s) to within limit.
In 2 hours
What actions are required if Reg Group CEAs are below PDIL (LCO 3.1.6)?
LCO 3.1.6 The power dependent insertion limit (PDIL) alarm circuit shall be OPERABLE, and the regulating CEA groups shall be limited to the withdrawal sequence and to the insertion limits specified in the COLR.
APPLICABILITY: MODES 1 and 2.
If Regulating CEA groups inserted beyond the power dependent insertion limit.
A.1 Restore regulating CEA groups to within limits.
OR
A.2 Reduce THERMAL POWER to less than or equal to the fraction of RTP allowed by the CEA group position and insertion limits specified in the COLR
In 2 hours
What actions are required if Reg Group CEAs are long term steady state insertion limit and the power dependent insertion limit for > 4 hours per 24 hour interval?
B.1 Verify short term steady state insertion limits are not exceeded.
OR
B.2 Restrict increases in THERMAL POWER to ≤ 5% RTP per hour
In 15 minutes
What actions are required if Regulating CEA groups inserted between the long term steady state insertion limit and the power dependent insertion limit for intervals > 5 effective full power days (EFPD) per 30 EFPD interval or > 14 EFPD per 365 EFPD?
Restore regulating CEA groups to within limits.
In 2 hours
Describe the Control Element Assembly (CEA) Position Indication Tech Spec (LCO 3.1.7).
LCO 3.1.7
Reed switch position indicator channel and pulse counting position indicator channel for each CEA shall be OPERABLE.
APPLICABILITY: MODES 1 and 2.
Separate Condition entry is allowed for each CEA group.
Describe the Linear Heat Rate Tech Spec (LCO 3.2.1).
LCO 3.2.1 LHR shall not exceed the limits specified in the COLR.
APPLICABILITY: MODE 1.
IF LHR, as determined by the Incore Detector Monitoring System, exceeds the limits specified in the COLR, as indicated by four or more coincident incore channels.
OR
LHR, as determined by the Excore Detector Monitoring System, exceeds the limits as indicated by the ASI outside the power dependent control limits specified in the COLR.
Restore LHR to within limits.
In 1 hour
Describe the Total Integrated Radial Peaking Factor (Frt) Tech Spec (LCO 3.2.2).
LCO 3.2.2
The calculated value of TrF shall be within the limits specified in the COLR.
APPLICABILITY: MODE 1.
Describe the AZIMUTHAL POWER TILT (Tq) Tech Spec (LCO 3.2.3).
LCO 3.2.3
Tq shall be ≤ 0.03.
APPLICABILITY: MODE 1 with THERMAL POWER > 50% RTP.
Describe the AXIAL SHAPE INDEX (ASI) Tech Spec (LCO 3.2.4).
LCO 3.2.4
The ASI shall be maintained within the limits specified in the COLR.
APPLICABILITY: MODE 1 with THERMAL POWER > 40% RTP.
What actions are required if One or more Functions with one RPS trip unit or associated instrument channel inoperable (except for excore channel not calibrated with incore detectors). (LCO 3.3.1)
Unit 1
A.1 Place affected trip unit in bypass or trip in 1 hour
AND
A.2.1 Restore channel to OPERABLE status in 48 hours
OR
A.2.2 Place affected trip unit in trip in 48 hours.
Unit 2
A.1 Place affected trip unit in bypass or trip in 1 hour
AND
A.2 Restore channel to OPERABLE status prior to entering MODE 2 following next MODE 5 entry.
What are the required actions if One or more Functions with two RPS trip units or associated instrument channels inoperable (except for excore channel not calibrated with incore detectors). (LCO 3.3.1)
Unit 1
B.1 Place one trip unit in bypass and place the other trip unit in trip in 1 hour
AND
B.2 Restore one trip unit to OPERABLE status in 48 hours
Unit 2
B.1 Place one trip unit in bypass and place the other trip unit in trip in 1 hour
Describe the Logarithmic Neutron Flux Monitoring Tech Spec (LCO 3.3.11).
LCO 3.3.11
Two logarithmic neutron flux monitoring channels shall be OPERABLE.
APPLICABILITY: MODES 3, 4, and 5.
If One or more required channel(s) inoperable.
Suspend all operations involving positive reactivity additions.
Immediately
Describe the Reactor Protective System (RPS) Instrumentation – Shutdown Tech Spec (LCO 3.3.12).
LCO 3.3.12
Four Power Rate of Change - High RPS trip units and associated instrument and bypass removal channels shall be OPERABLE.
APPLICABILITY: MODES 3, 4, and 5, with any reactor trip circuit breakers (RTCBs) closed and any control element assembly capable of being withdrawn.
Trip may be bypassed when THERMAL POWER is < 1E-4% RTP. Bypass shall be automatically removed when THERMAL POWER is ≥ 1E-4% RTP.
Unit 1
What actions are required if RCS temperature is less than the Minimum Temperature for Criticality (LCO 3.4.2)?
LCO 3.4.2
Each RCS loop average temperature (Tavg) shall be ≥ 515°F.
APPLICABILITY: MODE 1 with Tavg in one or more RCS loops < 525°F,
MODE 2 with Tavg in one or more RCS loops < 525°F and Keff ≥ 1.0.
If Tavg in one or more RCS loops not within limit.
Be in MODE 2 with Keff < 1.0.
In 30 minutes
Describe the Pressurizer Tech Spec (LCO 3.4.9).
LCO 3.4.9
The pressurizer shall be OPERABLE with:
a. Pressurizer water level ≤ {68.6%} [68%]and
{b. Pressurizer heaters OPERABLE with a capacity ≥ 150 kW and capable of being powered from an emergency power supply.}
[b. Two groups of pressurizer heaters OPERABLE with the capacity of each group ≥ 150 kW and capable of being powered from an emergency power supply.]
APPLICABILITY: MODES 1, 2, and 3.
Describe the Pressurizer Safety Valves Tech Spec (LCO 3.4.10).
LCO 3.4.10
Three pressurizer safety valves shall be OPERABLE with lift settings
{≥ 2422.8 psig and ≤ 2560.3 psig.}
[≥ 2410.3 psig and ≤ 2560.3 psig.]
APPLICABILITY: MODES 1, 2, and 3,
MODE 4 with all RCS cold leg temperatures > {281°F} [230°F].
If One pressurizer safety valve inoperable.
Restore valve to OPERABLE status.
In 15 minutes
Describe the Power Operated Relief Valve (PORV) Block Valves Tech Spec (LCO 3.4.11).
LCO 3.4.11
Each PORV block valve shall be OPERABLE [and one PORV block valve shall be closed].
APPLICABILITY: MODES 1, 2, and 3.
If One or more PORV block valves inoperable,
Close PORV block valve
AND
Remove power from PORV block valve.
in 1 hour
