ML23067A171

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Technical Specifications, Chapter 3.2, Power Distribution Limits
ML23067A171
Person / Time
Site: Callaway Ameren icon.png
Issue date: 12/29/2022
From:
Union Electric Co, Ameren Missouri
To:
Office of Nuclear Reactor Regulation
Shared Package
ML23067A139 List: ... further results
References
ULNRC-06782
Download: ML23067A171 (1)
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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, as approximated by and, shall be within the limits F Q ZF CQ ZF WQ Z specified in the COLR.

APPLICABILITY: MODE 1.

ACTIONS

CONDITION REQUIRED ACTION COMPLETIONTIME

A. not within limit. A.1 Reduce THERMAL F CQ Z15 minutes after POWER 1% RTP for each F CQ Z each 1% exceeds F CQ Zdetermination 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 CQ Z setpoints 1% for each determination 1% exceeds limit. F CQ Z

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 CQ Z each 1% exceeds F CQ Zdetermination 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)

CONDITION REQUIRED ACTION COMPLETIONTIME

B. not within limits. B.1 Reduce AFD limits 1% F WQ Z4 hours 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 is within limit. Once after each F CQ Z 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 CQ 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 CQ Z measurements indicate

F CQ Z maximum over z ------------------KZ-

has increased since the previous evaluation of F CQ Z

a. Increase by the appropriate factor F WQ Z

specified in the COLR and reverify is F WQ Z within limits; or

b. Repeat SR 3.2.1.2 once per 7 EFPD until two successive power distribution measurements indicate.

F CQ Z maximum over z -------------------

KZ

has not increased.

Verify is within limit Once after each F WQ Zrefueling 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 N H 3.2.2

3.2 POWER DISTRIBUTION LIMITS

3.2.2 Nuclear Enthalpy Rise Hot Channel Factor ( ) F N H

LCO 3.2.2 shall be within the limits specified in the COLR. F N H

APPLICABILITY: MODE 1.

ACTIONS

CONDITION REQUIRED ACTION COMPLETIONTIME

A. ------------- NOTE ------------- A.1.1 Restore to within F N H4 hours Required Actions A.2 limit.

and A.3 must be completed whenever Condition A is OR entered.

4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> A.1.2.1 Reduce THERMAL F N H 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 N H 3.2.2

ACTIONS

CONDITION REQUIRED ACTION COMPLETIONTIME

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 N H 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 is within limits specified in the COLR. Once after each FN H 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

CONDITION REQUIRED ACTION COMPLETIONTIME

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

CONDITION REQUIRED ACTION COMPLETIONTIME

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

CONDITION REQUIRED ACTION COMPLETIONTIME

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

CONDITION REQUIRED ACTION COMPLETIONTIME

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

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