ML20209A115
| ML20209A115 | |
| Person / Time | |
|---|---|
| Site: | Callaway  |
| Issue date: | 11/13/2019 |
| From: | Ameren Missouri, Union Electric Co |
| To: | Office of Nuclear Reactor Regulation |
| Shared Package | |
| ML20209A098 | List:
|
| References | |
| ULNRC-06547 | |
| Download: ML20209A115 (14) | |
Text
CHAPTER TABLE OF CONTENTS CHAPTER 3.2 POWER DISTRIBUTION LIMITS Section Page 3.2.1 Heat Flux Hot Channel Factor (FQ(Z))
(FQ Methodology) ................................................................................................ 3.2-1 ACTIONS ........................................................................................................ 3.2-1 SURVEILLANCE REQUIREMENTS ............................................................... 3.2-3 3.2.2 Nuclear Enthalpy Rise Hot Channel Factor ( ) .................................................... 3.2-6 ACTIONS ........................................................................................................ 3.2-6 SURVEILLANCE REQUIREMENTS ............................................................... 3.2-8 3.2.3 AXIAL FLUX DIFFERENCE (AFD) (Relaxed Axial Offset Control (RAOC) Methodology) ........................................................................... 3.2-9 ACTIONS ...................................................................................................... 3.2-9 SURVEILLANCE REQUIREMENTS ............................................................... 3.2-9 3.2.4 QUADRANT POWER TILT RATIO (QPTR) ..................................................... 3.2-10 ACTIONS .................................................................................................... 3.2-10 SURVEILLANCE REQUIREMENTS ............................................................. 3.2-13 CALLAWAY PLANT 3.2-i
FQ(Z) (FQ Methodology) 3.2.1 3.2 POWER DISTRIBUTION LIMITS 3.2.1 Heat Flux Hot Channel Factor (FQ(Z))(FQ Methodology)
LCO 3.2.1 FQ Z , as approximated by F QC Z and F W Q Z , shall be within the limits specified in the COLR.
APPLICABILITY: MODE 1.
ACTIONS COMPLETION CONDITION REQUIRED ACTION TIME A. F QC Z not within limit. A.1 Reduce THERMAL 15 minutes after POWER 1% RTP for each F QC Z each 1% F QC Z exceeds determination limit.
AND A.2 Reduce Power Range 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> after each Neutron Flux High trip F QC Z setpoints 1% for each determination 1% F QC Z exceeds limit.
AND A.3 Reduce Overpower T 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> after each trip setpoints 1% for F QC Z each 1% F Q Z exceeds determination C
limit.
AND A.4 Perform SR 3.2.1.1. Prior to increasing THERMAL POWER above the limit of Required Action A.1 (continued)
CALLAWAY PLANT 3.2-1 Amendment No. 133
FQ(Z) (FQ Methodology) 3.2.1 ACTIONS (continued)
COMPLETION CONDITION REQUIRED ACTION TIME B. Q Z FW not within limits. B.1 Reduce AFD limits 1% 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> for each 1% F WQ Z exceeds limit.
C. Required Action and C.1 Be in MODE 2 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> associated Completion Time not met.
CALLAWAY PLANT 3.2-2 Amendment No. 133
FQ(Z) (FQ Methodology) 3.2.1 SURVEILLANCE REQUIREMENTS
NOTE -----------------------------------------------------------
During power escalation following shutdown, THERMAL POWER may be increased until an equilibrium power level has been achieved, at which a power distribution map is obtained.
SURVEILLANCE FREQUENCY SR 3.2.1.1 Verify F QC Z is within limit. Once after each refueling prior to THERMAL POWER exceeding 75% RTP AND Once within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> after achieving equilibrium conditions after exceeding, by 10% RTP, the THERMAL POWER at which F QC Z was last verified AND In accordance with the Surveillance Frequency Control Program (continued)
CALLAWAY PLANT 3.2-3 Amendment No. 202
FQ(Z) (FQ Methodology) 3.2.1 SURVEILLANCE REQUIREMENTS (continued)
SURVEILLANCE FREQUENCY SR 3.2.1.2 --------------------------------- NOTE ------------------------------
If F QC Z measurements indicate F QC Z maximum over z -------------------
KZ has increased since the previous evaluation of F QC Z
- a. Increase F W Q Z by the appropriate factor specified in the COLR and reverify F W Q Z is within limits; or
- b. Repeat SR 3.2.1.2 once per 7 EFPD until two successive power distribution measurements indicate.
F QC Z maximum over z -------------------
KZ has not increased.
Once after each Verify F W Q Z is within limit refueling prior to THERMAL POWER exceeding 75%
RTP AND (continued)
CALLAWAY PLANT 3.2-4 Amendment No. 182
FQ(Z) (FQ Methodology) 3.2.1 SURVEILLANCE REQUIREMENTS SURVEILLANCE FREQUENCY SR 3.2.1.2 (continued) Once within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> after achieving equilibrium conditions after exceeding, by 10% RTP, the THERMAL POWER at which was last verified AND In accordance with the Surveillance Frequency Control Program CALLAWAY PLANT 3.2-5 Amendment 202
F NH 3.2.2 3.2 POWER DISTRIBUTION LIMITS 3.2.2 Nuclear Enthalpy Rise Hot Channel Factor ( F NH )
LCO 3.2.2 F NH shall be within the limits specified in the COLR.
APPLICABILITY: MODE 1.
ACTIONS COMPLETION CONDITION REQUIRED ACTION TIME A. ------------- NOTE ------------- A.1.1 Restore F NH to within 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> Required Actions A.2 and A.3 must be completed limit.
whenever Condition A is entered. OR A.1.2.1 Reduce THERMAL 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> F NH not within limit. POWER to < 50% RTP.
AND A.1.2.2 Reduce Power Range 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> Neutron Flux - High trip setpoints to 55% RTP.
AND A.2 Perform SR 3.2.2.1. 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> AND (continued)
CALLAWAY PLANT 3.2-6 Amendment No. 133
F NH 3.2.2 ACTIONS COMPLETION CONDITION REQUIRED ACTION TIME A. (continued) A.3 ------------ NOTE ------------
THERMAL POWER does not have to be reduced to comply with this Required Action.
Perform SR 3.2.2.1. Prior to THERMAL POWER exceeding 50% RTP AND Prior to THERMAL POWER exceeding 75% RTP AND 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> after THERMAL POWER reaching 95% RTP B. Required Action and B.1 Be in MODE 2. 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> associated Completion Time not met.
CALLAWAY PLANT 3.2-7 Amendment 133
F NH 3.2.2 SURVEILLANCE REQUIREMENTS
NOTE -----------------------------------------------------------
During power escalation following shutdown, THERMAL POWER may be increased until an equilibrium power level has been achieved, at which a power distribution map is obtained.
SURVEILLANCE FREQUENCY SR 3.2.2.1 Verify FNH is within limits specified in the COLR. Once after each refueling prior to THERMAL POWER exceeding 75% RTP AND In accordance with the Surveillance Frequency Control Program CALLAWAY PLANT 3.2-8 Amendment No. 202
AFD (RAOC Methodology) 3.2.3 3.2 POWER DISTRIBUTION LIMITS 3.2.3 AXIAL FLUX DIFFERENCE (AFD) (Relaxed Axial Offset Control (RAOC) Methodology)
LCO 3.2.3 The AFD in % flux difference units shall be maintained within the limits specified in the COLR.
NOTE --------------------------------------------
The AFD shall be considered outside limits when two or more OPERABLE excore channels indicate AFD to be outside limits.
APPLICABILITY: MODE 1 with THERMAL POWER 50% RTP.
ACTIONS COMPLETION CONDITION REQUIRED ACTION TIME A. AFD not within limits. A.1 Reduce THERMAL 30 minutes POWER to < 50% RTP.
SURVEILLANCE REQUIREMENTS SURVEILLANCE FREQUENCY SR 3.2.3.1 Verify AFD within limits for each OPERABLE excore In accordance channel. with the Surveillance Frequency Control Program CALLAWAY PLANT 3.2-9 Amendment No. 202
QPTR 3.2.4 3.2 POWER DISTRIBUTION LIMITS 3.2.4 QUADRANT POWER TILT RATIO (QPTR)
LCO 3.2.4 The QPTR shall be 1.02.
APPLICABILITY: MODE 1 with THERMAL POWER 50% RTP.
ACTIONS COMPLETION CONDITION REQUIRED ACTION TIME A. QPTR not within limit. A.1 Reduce THERMAL 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> after each POWER 3% from RTP QPTR for each 1% of QPTR determination
> 1.00.
AND A.2 Determine QPTR. Once per 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> AND A.3 Perform SR 3.2.1.1, 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> after SR 3.2.1.2 and achieving SR 3.2.2.1. equilibrium conditions from a THERMAL POWER reduction per Required Action A.1 AND Once per 7 days thereafter AND (continued)
CALLAWAY PLANT 3.2-10 Amendment No. 133
QPTR 3.2.4 ACTIONS COMPLETION CONDITION REQUIRED ACTION TIME A. (continued) A.4 Reevaluate safety Prior to increasing analyses and confirm THERMAL results remain valid for POWER above the duration of operation limit of Required under this condition. Action A.1 AND A.5 ----------- NOTES -----------
- 1. Perform Required Action A.5 only after Required Action A.4 is completed.
- 2. Required Action A.6 shall be completed whenever Required Action A.5 is performed.
Normalize excore Prior to increasing detectors to restore THERMAL QPTR to within limit. POWER above the limit of Required Action A.1 AND (continued)
CALLAWAY PLANT 3.2-11 Amendment 133
QPTR 3.2.4 ACTIONS COMPLETION CONDITION REQUIRED ACTION TIME A. (continued) A.6 ------------ NOTE ------------
Perform Required Action A.6 only after Required Action A.5 is completed.
Perform SR 3.2.1.1, 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> after SR 3.2.1.2 and achieving SR 3.2.2.1. equilibrium conditions not to exceed 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br /> after increasing THERMAL POWER above the limit of Required Action A.1 B. Required Action and B.1 Reduce THERMAL 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> associated Completion POWER to 50% RTP Time not met.
CALLAWAY PLANT 3.2-12 Amendment 133
QPTR 3.2.4 SURVEILLANCE REQUIREMENTS SURVEILLANCE FREQUENCY SR 3.2.4.1 --------------------------------- NOTE ------------------------------
- 1. With input from one Power Range Neutron Flux channel inoperable and THERMAL POWER 75% RTP, the remaining three power range channels can be used for calculating QPTR.
- 2. SR 3.2.4.2 may be performed in lieu of this Surveillance.
Verify QPTR is within limit by calculation. In accordance with the Surveillance Frequency Control Program SR 3.2.4.2 --------------------------------- NOTE ------------------------------
Not required to be performed until 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> after input from one or more Power Range Neutron Flux channels are inoperable with THERMAL POWER
> 75% RTP.
Verify QPTR is within limit using power distribution In accordance measurement information. with the Surveillance Frequency Control Program CALLAWAY PLANT 3.2-13 Amendment No. 202