Text

Rev 1 to Waterford 3 COLR for Cycle 10
	ML20204F079
Person / Time
Site:	Waterford
Issue date:	03/17/1999
From:	Baldwin S, Holman J, Lemke E; ENTERGY OPERATIONS, INC.
To:	;
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ML20204F074	List: ML20204F070; ML20204F079;
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l ENTERGY OPERATIONS WATERFORD 3 CORE OPERATING LIMITS REPORT FOR CYCLE 10 i

REVISION 1 I

Prepared by:

E.L. Lemke b)herM [d 3////99 Dkfok Jk% d1A dlMTf Reviewed by:

S.R. Baldwin 7 // k[

Approved by:

J.B. Holman c#%

,/

Safe /p & Engine rin Analysis Approved by:

C.E. DeDeaux Licensing Q

$ $ k [M o382 P

PDR, WATERFORD 3 Page 1 CYCLE 10 REVISION 1

WATERFORD 3 CORE OPERATING LIMITS REPORT CYCLE 10, REVISION 1 l

INDEX Pace 1.

INTRODUCTION 5

ll.

AFFECTED TECHNICAL SPECIFICATIONS 6

3.1.1.1 Shutdown Margin - Any Full Length CEA Withdrawn COLR 3/41-1 3.1.1.2 Shutdown Margin - All Full Length CEAs Fully inserted COLR 3/41-3 3.1.1.3 Moderator Temperature Cc:Ji.ient COLR 3/41-4 3.1.2.9 Boron Dilution COLR 3/41-15 3.1.3.1 Movable Control Assemblies - CEA Position COLR 3/41-18 3.1.3.6 Rm!!ating CEA Group Insertion Limits COLR 3/41-25 3.1.3.7 Part Length CEA Group Insertion Limits COLR 3/41-28 3.2.1 Linear Heat Rato COLR 3/4 2-1 3.2.3 Azimuthal Power Tilt - T COLR 3/4 2-4 q

3.2.4 DNBR Margin COLR 3/4 2-6 3.2.7 Axial Shape Index COLR 3/4 2-12 j

3.9.1 Boron Concentration COLR 3/4 9-1 i

WATERFORD 3 Page 2 CYCLE 10 REVISION 1

y l

l R

- LIST OF FIGURES PAGE

. COLR Figure 1.

Shutdown Margin Versus Cold Leg COLR 3/41-3A Temperature COLR Figure 2.

Moderator Temperature Coefficient Versus % of COLR 3/41-4A l-Ra^od Thermal Power (Restricted Operation - Do Not Use veith Boron Concentration 5 200 ppm)

COLR Figure 3.-

Required Power Reduction After Single CEA COLR 3/41-18A Deviation COLR Figure 4.

Regulating CEA Group Insertion Limits Versus COLR 3/41-25A Thermal Power

{

i COLR Figure 5.

Part Length CEA Group insertion Limits Versus COLR 3/41-28A Thermal Power COLR Figure 6.

Allowable Peak Linear Heat Rate Versus Tc COLR 3/4 2-1A (COLSS in Service)

COLR Figure 7.

Allowable Peak Linear Heat Rate Versus Tc COLR 3/4 2-1B (COLSS Out of Service)

COLR Figure 8.

Allowable DNBR with Any CEAC Operable COLR 3/4 2-6A j

(COLSS Out of Service)

-i COLR Figure 9.

Allowable DNBR with No CEAC(s) Operable COLR 3/4 2-6B (COLSS Out of Service)

J LIST OF TABLES COLR Table 1.

Required Monitoring Frequencies for Backup Boron COLR 3/41-15A I

Dilution Detection as a Function of Operating Charging l

Pumps and Plcnt Operational Modes for Keff Greater l

Than0s8.

COLR Table 2.

Required Monitoring Frequencies for Backup Boron COLR 3/41-15B l

Dilution Detection as a Function of Operating Charging Pumps and Plant Operational Modes for Keff Greater Than 0.97 and Less Than or Equal to 0.98.

l COLR Table 3.

Required Monitoring Frequencies for Backup Boron COLR 3/41-15C Dilution Detection as a Function of Operating Charging Pumps and Plant Operational Modes for Keff Greater l

Than 0.96 and Less Than or Equal to 0.97.

WATERFORD 3 Page 3 CYCLE 10 REVISION 1 t-

LIST OF TABLES (Continued)

PAGE

. COLR Table 4.

Required Monitoring Frequencies for Backup Boron COLR 3/41-15D

~

Dilution Detection as a Function of Operating Charging Pumps and Plant Operational Modes for Keff Greater Than 0.95 and Less Than or Equal to 0.96.

COLR Table 5.

Required Monitoring Frequencies for Backup Boron COLR 3/41-15E Dilution Detection as a Function of Operating Charging Pumps and Plant Operational Modes for Keff ess L

Than or Equal to 0.95.

Ill.

METHODOLOGIES 33 I

WATERFORD 3 Page 4 CYCLE 10 REVISION 1

.r

WATERFORD 3 -

CORE OPERATING LIMITS REPORT CYCLE 10, REVISION 1 l

1.

INTRODUCTION This CORE OPERATING LIMITS REPORT (COLR) has been prepared in accordance with the requirements of Waterford 3 Technical Specification 6.9.5 for Waterford 3 i

Cycle 10. The core operating limits have been developed using the NRC approved methodologies specified in Section Ill. This is Revision 1 of the Cycle 10 COLR.

l 1

Changes between Cycle 10, Revision 0, and Cycle 10, Revision 1, included in this l

revision are:

1.

Figures 8 and 9 have been revised to address new DNBR limits with COLSS Out-of-Service when the CEACs are Operable or Inoperable.

i 1

WATERFORD 3 Page 5 CYCLE 10 REVISION 1

o 1

II.

AFFECTED TECHNICAL SPECIFICATIONS l

l WATERFORD 3 Page 6 CYCLE 10 REVISION 1

CORE OPERATING LIMITS REPORT SHUTDOWN MARGIN - ANY FULL LENGTH CEA WITHDRAWN 3.1.1.1 The SHUTDOWN MARGIN shall be greater than or equal to 5.15% Ak/k when Tavg s greater than 200 F or 2.0% Ak/k when Tavg s less than or equal to i

i 200 "F.

i WATERFORD 3 COLR 3/41-1 CYCLE 10 REVISION 1

CORE OPERATING LIMITS REPORT SHUTDOWN MARGIN - ALL FULL LENGTH CEAs FULLY INSERTED 3.1.1.2. The SHUTDOWN MARGIN shall be maintained within the region of acceptable operation of COLR Figure 1.

l

)

l i

WATERFORD 3 COLR 3/41-3 CYCLE 10 REVISION 1

Shutdown Margin Versus Cold Leg Temperature l

]

5 (500* F, 4.10%)

i 4

2 86 ep3l g

Acceptable Operation ho

\\

s 2

(400* F,1.0%)

Unacceptable Operation 0

0 100 200 300 400 500 600 i

Cold Leg Temperature (*F)

COLR Figure 1 WATERFORD 3 COLR 3/41-3A CYCLE 10 REVISION 1

r.

CORE OPERATING LIMITS REPORT MODERATOR TEMPERATURE COEFFICIENT 3.1.1.3 The Moderator Temperature Coefficient (MTC) shall be maintained within the region of t

acceptable operation of COLR Figure 2.

I Rectriction: The reactor shall not be operated with a critical boron concentration less than or equal to 200 ppm to ensure MTC is maintained within COLR Figure 2.

4 WATERFORD 3 COLR 3/41-4A CYCLE 10 REVISION 1

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l CORE OPERATING LIMITS REPORT BORON DILUTION j

I 3.1.2.9 See COLR Tables 1 through 5 for required RCS boron concentration monitoring frequencies and Charging Pump operation limits.

SURVEILLANCE REQUIREMENTS Each required boron dilution alarm shall be adjusted to less than or equal to twice (2x) the existing neutron flux (eps) at the following frequencies:

a. No sooner than one half hour after shutdown.

b. At least once per hour if the reactor has been shutdown < 10 hours1.157407e-4 days 0.00278 hours 1.653439e-5 weeks 3.805e-6 months .

c. At least once per 5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months if the reactor hcs been shut down 210 hours0.00243 days 0.0583 hours 3.472222e-4 weeks 7.9905e-5 months but < 25 hours2.893519e-4 days 0.00694 hours 4.133598e-5 weeks 9.5125e-6 months .

d. At least once per 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months if the reactor has been shut down 2 25 hours2.893519e-4 days 0.00694 hours 4.133598e-5 weeks 9.5125e-6 months but < 21 days.

e. At least once per 7 days if the reactor has been shut down 2 21 days.

WATERFORD 3 COLR 3/41-15 CYCLE 10 REVISION 1

l COLR TABLE 1 REQUIRED MONITORING FREQUENCIES FOR BACKUP BORON DILUTION DETECTION AS A FUNCTION OF OPERATING j

CHARGING PUMPS AND PLANT OPERATIONAL MODES FOR 1

Keff GREATER THAN 0.98 Keff >0.98 l

OPEiMTIONAL Number of Operatino Charaino Pumos*

MODE 0

1 2

3 3

12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months 0.75 hours8.680556e-4 days 0.0208 hours 1.240079e-4 weeks 2.85375e-5 months Operation not allowed **

4 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months Operation not all owed **

5 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months Operation not allowed **

RCS filled 5

8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months Operation not allowed **

j RCS partial!y drained 6

Operation not allowed **

Charging pump OPERABILITY for any period of time shall constitute OPERABILITY for the entire monitoring frequency.

- The precluded number of charging pumps shall be verified to be inoperable by racking out their motor circuit areakers.

4 i

j I

I I

WATERFORD 3 COLR 3/41-15A CYCLE 10 REVISION 1 i

COLR TABLE 2 REQUIRED MONITORING FREQUENCIES FOR BACKUP BORON DILUTION DETECTION AS A FUNCTION OF OPERATING CHARGING PUMPS AND PLANT OPERATIONAL MODES FOR Keff GREATER THAN 0.97 AND LESS THAN OR EQUAL TO 0.98 0.98 2 Keff >0.97 OPERATIONAL Number of Operatina Charaina Pcmos*

MODE O

1 2

3 3

12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months 2.0 hours0 days 0 hours 0 weeks 0 months 0.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months Operation not allowed **

4 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months 0.75 hours8.680556e-4 days 0.0208 hours 1.240079e-4 weeks 2.85375e-5 months Operation not allowed **

5 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months 0.75 hours8.680556e-4 days 0.0208 hours 1.240079e-4 weeks 2.85375e-5 months Operation not allowed **

RCS filled 5

8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months 0.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months Operation not allowed **

RCS partially drained 6

Operation not allowed **

Charging pump OPERABILITY for any period of time shall constitute OPERABILITY for the entire monitoring frequency.

- The precluded number of charging pumps shall be verified to be inoperable by racking out their motor circuit breakers.

WATERFORD 3 COLR 3/41-15B CYCLE 10 REVISION 1

c COLR TABLE 3 REQUIRED MONITORING FREQUENCIES FOR BACKUP' BORON DILUTION DETECTION AS A FUNCTION OF OPERATING

. CHARGING PUMPS AND PLANT OPERATIONAL MODES FOR l

Keff GREATER THAN 0.96 AND LESS THAN OR EQUAL TO 0.97 0.97 2 Keff >0.96 OPERATIONAL -

Number of Operatina Charaina Pumos*

MODE

-0 1

2 3

3 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months 3.0 hours0 days 0 hours 0 weeks 0 months 1.25 hours2.893519e-4 days 0.00694 hours 4.133598e-5 weeks 9.5125e-6 months 0.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months 4

12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months 1.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months Operation not allowed **

5 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months 1.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months Operation not allowed **

RCS filled 5

8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months 0.75 hours8.680556e-4 days 0.0208 hours 1.240079e-4 weeks 2.85375e-5 months Operation not allowed **

RCS partially drained 6

Operation not allowed **

Charging pump OPERABILITY for any period of time shall constitute OPERABILITY for the entire monitoring frequency.

- The precluded number of charging pumps shall be verified to be inoperable by racking out their motor circuit breakers.

1 l

l WATERFORD 3 COLR 3/41-15C CYCLE 10 REVISION 1 i

COLR TABLE 4 REQUIRED MONITORING FREQUENCIES FOR BACKUP BORON DILUTION DETECTION AS A FUNCTION OF OPERATING CHARGING PUMPS AND PLANT OPERATIONAL MODES FOR Keg GREATER THAN 0.95 AND LESS THAN OR EQUAL TO 0.96 0.96 2 Keg >0.95 OPERATIONAL Number of Operating Charoino Pumos*

MODE O

1 2

3 3

12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months 4.0 hours0 days 0 hours 0 weeks 0 months 2.0 hours0 days 0 hours 0 weeks 0 months 1.0 hours0 days 0 hours 0 weeks 0 months 4

12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months 2.25 hours2.893519e-4 days 0.00694 hours 4.133598e-5 weeks 9.5125e-6 months 0.75 hours8.680556e-4 days 0.0208 hours 1.240079e-4 weeks 2.85375e-5 months Operation not allowed **

5 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months 2.0 hours0 days 0 hours 0 weeks 0 months 0.75 hours8.680556e-4 days 0.0208 hours 1.240079e-4 weeks 2.85375e-5 months Operation not allowed **

RCS filled 5

8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months 2.0 hours0 days 0 hours 0 weeks 0 months 0.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months Operation not allowed **

RCS partially drained 6

Operation not allowed **

Charging pump OPERABILITY for any period of time shall constitute OPERABILITY for the entire monitoring frequency.

- The precluded number of charging pumps shall be verified to be inoperable by racking out their motor circuit breakers.

1 WATERFORD 3 COLR 3/41-15D CYCLE 10 REVISION 1

v.

i COLR TABLE 5 REQUIRED MONITORING FREQUENCIES FOR BACKUP BORON 1

DILUTION DETECTION AS A FUNCTION OF OPERATING CHARGING PUMPS AND PLANT OPERATIONAL MODES FOR Keff LESS THAN OR EQUAL TO 0.95 Keff s0.95 OPERATIONAL Number of Operatina Charaina Pumos*

MODE O

1 2

3 3

12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months 5.0 hours0 days 0 hours 0 weeks 0 months 2.0 hours0 days 0 hours 0 weeks 0 months 1.0 hours0 days 0 hours 0 weeks 0 months 4

12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months 2.75 hours8.680556e-4 days 0.0208 hours 1.240079e-4 weeks 2.85375e-5 months 1.0 hours0 days 0 hours 0 weeks 0 months Operation not allowed **

5 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months 3.0 hours0 days 0 hours 0 weeks 0 months 1.0 hours0 days 0 hours 0 weeks 0 months 0.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months RCS filled 5

8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months 2.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months 0.75 hours8.680556e-4 days 0.0208 hours 1.240079e-4 weeks 2.85375e-5 months Operation not allowed **

RCS partially drained G

24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months 2.25 hours2.893519e-4 days 0.00694 hours 4.133598e-5 weeks 9.5125e-6 months 0.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months Operation not allowed **

Charging pump OPERABILITY for any period of time shall constitute OPERABILITY for the entire monitoring frequency.

- The precluded number of charging pumps shall be verified to be inoperable by racking out their motor circuit breakers.

WATERFORD 3 COLR 3/41-15E CYCLE 10 REVISION 1

- CORE OPERATING LIMITS REPORT MOVABLE CONTROL ASSEMBLIES - CEA POSITION l

3.1.3.1.a With one full-length or part-length CEA trippable but misaligned from any

{

other CEA in its group by more than 19 inches, operation in MODES 1 and 2 may continue, provided that core power is reduced in accordance with COLR Figure 3.

)

3.1.3.1.b With one or more full-length or part-length CEAs trippable but misaligned from any other CEAs in its group by more than 7 inches but less than or equal to 19 inches, operation in MODES 1 and 2 may continue, p,'ovided

]

that core power is reduced in accordance with COLR Figure 3.

l 1

WATERFORD 3 COLR 3/41-18 CYCLE 10 REVISION 1

l Required Power Reduction After Single CEA Deviation

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When thermal power is reduced to 60% of rated thermal power per this limit curve, further reduction is not required by this technical specification.

4 WATERFORD 3 COLR 3/41-18A CYCLE 10 REVISION 1

r?

1

. CORE OPERATING LIMITS REPORT

- REGULATING CEA GROUP INSERTION LIMITS 3.1;3.6 The regulating CEA groups shall be limited to the withdrawal sequence and to the insertion limits shown on COLR Figure 4.

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WATERFORD 3 COLR 3/41-25 CYCLE 10 REVISION 1

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. PART LENGTH CEA GROUP INSERTION LIMITS 3.1.3.7 The part length CEA group shall be limited to the insertion limits shown on COLR Figure 5.

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WATERFORD 3 COLR 3/41-28 CYCLE 10 REVISION 1 i

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l CORE OPERATING LIMITS REPORT LINEAR HEAT RATE 3.2.1 The linear heat rate shall be maintained:

j a.

Within the region of acceptable operation of COLR Figure 6, I

when COLSS is in service, b.

Within the region of acceptable operation of COLR Figure 7, j

when COLSS is out of service.

I i

4 l

WATERFORD 3 COLR 3/4 2-1 CYCLE 10 REVISION 1 L-

Allowable Peak Linear Heat Rate Versus Tc (COLSS in Service) 13.4

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E 12.8 Acceptable Operation 12.7 (12.7 kwlft @ 520' F) 12.6 510 620 630 640 650 660 Initial Core Coolant Inlet Temperature ( F)

COLR Figure 6 WATERFORD 3 COLR 3/4 2-1 A CYCLE 10 REVISION 1

a Allowable Peak Linear Heat Rate Versus Tc j

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12.8 12.7 12.6 510 515 520 525 530 535 540 545 550 555 560 Initial Core Coolant inlet Temperature ( F)

COLR Figure 7 WATERFORD 3 COLR 3/4 2-1B CYCLE 10 REVISION 1

CORE OPERATING LIMITS 11EPORT AZIMUTHAL POWER TILT-Tq 3.2.3 The measured AZIMUTHAL POWER TILT shall be maintained s 0.03.

4 L

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WATERFORD 3 COLR 3/4 2-4 CYCLE 10 REVISION 1

CORE OPERATING LIMITS REPORT DNBR MARGIN 3.2.4 The DNBR margin shall be maintained by one of the following methods:

a)

When COLSS is in service and neither CEAC is operable: maintain COL 3S calculated core power less than or equal to COLSS calculated core power operating limit based on DNBR decreased by 13% RATED THERMAL POWER.

b)

When COLSS is out of service and at least one CEAC is operable: operate within the region of acceptable operation shown on COLR Figure 8, using any operable CPC channel.

c)

When COLSS is out of service and neither CEAC is operable: operate within the region of acceptable operation shown on COLR Figure 9, using any operable CPC channel.

WATERFORD 3 COLR 3/4 2-6A CYCLE 10 REVISION.

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CORE OPERATING LIMITS REPORT AXIAL SHAPE INDEX 3.2.7 The AXIAL SHAPE INDEX (ASI) shall be maintained within the following limits:

COLSS Operable

-0.224 s ASI s +0.263 for THERMAL POWERS 2 70% of RATED THERMAL POWER l

-0.26 s ASI s +0.26 for THERMAL POWERS < 70% of RATED THERMAL POWER COLSS Out of Service

-0.17 s ASI s +0.22 for THERMAL POWERS from 0% to 100% of RATED THERMAL POWER

\\

1 WATERFORD 3 COLR 3/4 2-12 CYCLE 10 REVISION 1

i CORE OPERATING LIMITS REPORT BORON CONCENTRATION 3.9.1 While in Mode 6, the RCS boron concentration shall be maintained sufficient to ensure that the more restrictive of the following reactivity conditions is met:

j

a. Either Keff of 0.95 or less, or

b. A boron concentration of greater than or equal to 2050 ppm.

i WATERFORD 3 COLR 3/4 9-1 CYCLE 10 REVISION 1

e i

l i

-lil.

METHODOLOGIES The analytical methods used to determine the core operating limits listed above are those previously reviewed and approved by the NRC in:

l 1.

"The ROCS and DlT Computer Codes for Nuclean Design," CENPD-266-P-A, Apr!!

1983; and "C-E _ Methodology for Core Designs Containing Gadolinia-Urania Burnable Absorber," CENPD-275-P-A, May 1988. Methodology for the limit on Shutdown Margins, MTC, and the Regulating CEA Insertion Limits.

2.

"C-E Method for Control Element Assembly Ejection Analysis," CENPD-0190-A, January 1976. Methodology for the Regulating CEA Insertion Limits and Azimuthal Power Tilt.

3.

" Modified Statistical Combination of Uncertainties" CEN-356(V)-P-A, May 1988, Methodology for the limits on the DNBR Margin and the ASl.

4.

" Calculative Methods for the C-E Large Break LOCA Calculation Model For The Analysis of C-E and W Designed NSSS," CENPD-132, Supplement 3-P-A, June 1985. Methodology for the limits on the MTC, Linear Heat Rate, Azimuthal Power Tilt and ASI.

5.

" Calculative Methods for the C-E Small Break LOCA Evaluation Model," CENPD-137-P, August 1974: Supplement 1, January 1977. Methodology for the limits on the MTC, Linear Heat Rate, Azimuthal Power Tilt and ASI.

6.-

"CESEC - Digital Simulation of a Combustion Engineering Nuclear Steam Supply System", CENPD-107, December 1981. Methodology for the limits on the l

Shutdown Margins, MTC, Movable Control Assemblies - CEA Position, Regulating CEA Insertion Limits, Part length CEA Insertion Limits and Azimuthal Power Tilt.

WATERFORD 3 Page 33 CYCLE 10 REVISION 1

ML20204F079

Text

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