Text

Core Operating Limits Report (Colr), Unit 1- Revision 11
	ML041460267
Person / Time
Site:	Palo Verde
Issue date:	05/13/2004
From:	Bauer S; Arizona Public Service Co
To:	; Document Control Desk, Office of Nuclear Reactor Regulation
References
	102-05106-SAB/TNW/JAP
	Download: ML041460267 (28)
	v • d • e

16

~

gScott A. Bauer Department Leader Regulatory Affairs Tel: 623/393-5978 Mail Station 7636 Palo Verde Nuclear Fax: 6231393-5442 P.O. Box 52034 Generating Station Id 6IT5AWTNM5gV AZ 85072-2034 May 13, 2004 U. S. Nuclear Regulatory Commission ATTN: Document Control Desk Mail Station P1-37 Washington, DC 20555-0001

Dear Sirs:

Subject:

Palo Verde Nuclear Generating Station (PVNGS)

Unit 1 bocket Nos. STN 50-528 Core Operating Limits Report (COLR), Unit 1-Revision 11 Pursuant to PVNGS Technical Specifications, Section 5.6.5.d, enclosed is Unit 1 Revision 11 COLR which was made effective on May 11, 2004. This revision of the COLR consists of revising Azimuthal Power Tilt (Section 3.2.3) to allow the tilt to be s 10% when power is > 20% and s 50%. Figure 3.2.3-1, "Azimuthal Power Tilt versus Thermal Power," has been added to reflect these limit changes. This revision replaces the previous Unit 1, Revision 10, COLR.

By copy of this letter and the enclosure, this COLR revision is being provided to the NRC Region IV Administrator and the PVNGS Senior Resident Inspector.

This letter does not make any commitments to the NRC.

Please contact Thomas N. Weber at (623) 393-5764 if you have any questions or require additional information.

Sincerely,

--tU W@

f SAB/TNW/JAP C

Enclosure:

1. Core Operating Limits Report for PVNGS Unit 1-Revision 11 cc:

B. S. Mallett NRC Region IV Regional Administrator M. B. Fields NRC NRR Project Manager N. L. Salgado NRC Senior Resident Inspector for PVNGS 4\\o-QD A member of the STARS (Strategic Teaming and Resource Sharing) Alliance Callaway

Comanche Peak

Diablo Canyon

Palo Verde

South Texas Project

Wolf Creek Core Operating Limits Report for PVNGS Unit 1-Revision 11

Revision II PVNGS UNIT 1 CORE OPERATING LIMITS REPORT CORE OPERATING LIMITS REPORT PALO VERDE NUCLEAR GENERATING STATION (PVNGS)

UNIT 1 Revision 11 I

Responsible Engineer Digitally signed by: Hwang, Lun-Chih Date (Z01668) k Date: 05/11/2004 16:31:28 Reason: I am the author of this document Location: PVNGSf Independent Reviewer Digitally signed by: Foster, Glenn Date A(Z35831)

I Date: 05/11/2004 16:50:18 Reason: I have reviewed this document Location: PVNGS Responsible Section Leader Digitally signed by Cannon, Thomas Date C(Z20485)

V Date: 05/11/2004 16:54:21 Reason: I am approving this document Location: PVNGS Page I I

Revision II PVNGS UNIT 1 CORE OPERATING LIMITS REPORT Table of Contents Description Revision #

Page Cover Page 11 1

Table of Contents 11 2

List of Figures 11 3

List of Tables 11 4

Affected Technical Specifications 11 5

Analytical Methods 11 6

11 7

CORE Operating Limits 3.1.1 Shutdown Margin (SDM) - Reactor Trip Breakers Open 11 8

3.1.2 Shutdown Margin (SDM) - Reactor Trip Breakers Closed 11 8

3.1.4 Moderator Temperature Coefficient (MTC) 11 8

3.1.5 Control Element Assembly (CEA) Alignment 11 8

3.1.7 Regulating CEA Insertion Limits 11 8

3.1.8 Part Strength CEA Insertion Limits 11 9

3.2.1 Linear Heat Rate (LHR) 11 9

3.2.3 Azimuthal Power Tilt (Tq) 11 9

3.2.4 Departure From Nucleate Boiling Ratio (DNBR) 11 9

3.2.5 Axial Shape Index (ASI) 11 10 3.3.12 Boron Dilution Alarm System (BDAS) 11 10 3.9.1 Boron Concentration 11 10 Page 2 1

Revision 11 PVNGS UNIT 1 CORE OPERATING LIMITS REPORT List of Figures Description Figure 3.1.1-1 Shutdown Margin Versus Cold Leg Temperature Reactor Trip Breakers Open Figure 3.1.2-1 Shutdown Margin Versus Cold Leg Temperature Reactor Trip Breakers Closed Figure 3.1.4-1 MTC Acceptable Operation, Modes I and 2 Figure 3.1.5-1 Core Power Limit After CEA Deviation Figure 3.1.7-1 CEA Insertion Limits Versus Thermal Power (COLSS in Service)

Figure 3.1.7-2 CEA Insertion Limits Versus Thermal Power (COLSS Out of Service)

Figure 3.1.8-1 Part Strength CEA Insertion Limits Versus Thermal Power Figure 3.2.3-1 Azimuthal Power Tilt Versus Thermal Power (COLSS in Service)

Figure 3.2.4-1 COLSS DNBR Operating Limit Allowance for Both CEACs Inoperable Figure 3.2.4-2 DNBR Margin Operating Limit Based on the Core Protection Calculators (COLSS Out of Service, CEACs Operable)

Figure 3.2.4-3 DNBR Margin Operating Limit Based on the Core Protection Calculators (COLSS Out of Service, CEACs Inoperable)

Revision #

11 11 11 11 11 11 11 11 11 11 11 Page 11 12 13 14 15 16 17 18 19 20 21 Page 3 1

Revision 11 PVNGS UNIT 1 CORE OPERATING LIMITS REPORT List of Tables Description Revision #

Page Table 3.3.12-1 Required Monitoring Frequencies for Backup Boron 11 22 Dilution Detection as a Function of Operating Charging Pumps and Plant Operational Modes for Keffl 0.98 Table 3.3.12-2 Required Monitoring Frequencies for Backup Boron I1 23 Dilution Detection as a Function of Operating Charging Pumps and Plant Operational Modes for 0.98 > Keff > 0.97 Table 3.3.12-3 Required Monitoring Frequencies for Backup Boron 11 24 Dilution Detection as a Function of Operating Charging Pumps and Plant Operational Modes for 0.97 > Keff > 0.96 Table 3.3.12-4 Required Monitoring Frequencies for Backup Boron 11 25 Dilution Detection as a Function of Operating Charging Pumps and Plant Operational Modes for 0.96 > Keff > 0.95 Table 3.3.12-5 Required Monitoring Frequencies for Backup Boron 11 26 Dilution Detection as a Function of Operating Charging Pumps and Plant Operational Modes for Keff < 0.95 Page 4 l

Revision 11 PVNGS UNIT 1 CORE OPERATING LIMITS REPORT This Report has been prepared in accordance with the requirements of Technical Specification 5.6.5. The Core Operating Limits have been developed using the NRC approved methodologies specified in Section 5.6.5 b of the Palo Verde Unit I Technical Specifications.

AFFECTED PVNGS TECHNICAL SPECIFICATIONS 3.1.1 Shutdown Margin (SDM) - Reactor Trip Breakers Open 3.1.2 Shutdown Margin (SDM) - Reactor Trip Breakers Closed 3.1.4 Moderator Temperature Coefficient (MTC) 3.1.5 Control Element Assembly (CEA) Alignment 3.1.7 Regulating CEA Insertion Limits 3.1.8 Part Strength CEA Insertion Limits 3.2.1 Linear Heat Rate (LHR) 3.2.3 Azimuthal Power Tilt (Tq) 3.2.4 Departure From Nucleate Boiling Ratio (DNBR) 3.2.5 Axial Shape Index (ASI) 3.3.12 Boron Dilution Alarm System (BDAS) 3.9.1 Boron Concentration Page 5

Revision 11 PVNGS UNIT 1 CORE OPERATING LIMITS REPORT ANALYTICAL METHODS The analytical methods used to determine the core operating limits shall be those previously reviewed and approved by the NRC, specifically those described in the following documents:

Title Report No.

Rev Date Supplement

1) CE Method for Control Element Assembly Ejection Analysis (13-N001-1301-01204-1)

2) The ROCS and DIT Computer Codes for Nuclear Design (13-N001-1900-01412-0)

CENPD-0190-A CENPD-266-P-A N.A.

January 1976 N.A.

N.A.

April 1983

3) Modified Statistical Combination of Uncertainties (13-NO01-1 303-01747-2)

4) System 8 0TM Inlet Flow Distribu-tion (13-NOO1-1301-01228-0)

5) Calculative Methods for the CE Large Break LOCA Evaluation Model for the Analysis of CE and W Designed NSSS (13-NOOI-1900-01192-3)

6) Calculative Methods for the CE Small Break LOCA Evaluation Model (13-NOO1-1900-01185-3)

7) Fuel Rod Maximum Allowable Pressure (1 3-NOO1-0201-00026-1)

8) Arizona Public Service Com-pany PWR Reactor Physics Meth-odology Using CASMO-4/

SIMULATE-3 (NFM-002)

CEN-356(V)-P-A 01 -P-A (ARI)

May 1988 (April 1996)

N.A.

Enclosure 1-P to LD-82-054 CENPD-132 CENPD-137-P CEN-372-P-A N.A.

N.A.

February 1993 N.A.

March 2001 I-P 4-P-A 2-P-A N.A.

N.A.

N;A.

April 1998 May 1990 September 1999 Page 6 1

Revision 11 PVNGS UNIT 1 CORE OPERATING LIMITS REPORT Title Report No.

Rev N.A.

Date Supplement

9) Technical Manual for the CENTS Code (13-N001-1303-02349-1 forVol. I 13-N001-1303-02348-1 for Vol. 2 13-NOO1-1303-02376-1 for vol.3 13-N001-1303-02375-1 for Supple-ment I

10) Implementation of ZIRLOTM Cladding Material in CE Nuclear Power Fuel Assembly Designs (1 3-NOOI-1 900-01329-0)

CE-NPD 282-P-A Vols. 1-3 June 1993 I

CENPD-404-P-A 0

November 2001 N.A.

Page 7 l

Revision 11 PVNGS UNIT 1 CORE OPERATING LIMITS REPORT The cycle-specific operating limits for the specifications listed are presented below.

3.1.1 - Shutdown Margin (SDM) - Reactor Trip Breakers Open The Shutdown Margin shall be greater than or equal to that shown in Figure 3.1.1-

.1 3.1.2 - Shutdown Margin (SDM) - Reactor Trip Breakers Closed The Shutdown Margin shall be greater than or equal to that shown in Figure 3.1.2-1.

3.1.4 - Moderator Temperature Coefficient (MTC)

The moderator temperature coefficient (MTC) shall be within the area of Acceptable Operation shown in Figure 3.1.4-1.

3.1.5 - Control Element Assembly (CEA) Alignment With one or more full-strength or part-strength CEAs misaligned from any other CEAs in its group by more than 6.6 inches, the minimum required MODES I and 2 core power reduction is specified in Figure 3.1.5-1.

3.1.7 - Regulating CEA Insertion Limits One or more CEACs OPERABLE: With COLSS IN SERVICE, regulating CEA groups shall be limited to the withdrawal sequence and to the insertion limits shown in Figure 3.1.7-12; with COLSS OUT OF SERVICE, regulation CEA groups shall be limited to the withdrawal sequence and to the insertion limits shown in Figure 3.1.7-2.2 l A reactor power cutback will cause either (Case 1) Regulating Group 5 or Regulating Group 4 and 5 to be dropped with no sequential insertion of additional Regulating Groups (Groups 1, 2, 3, and 4) or (Case 2) Regulating Group 5 or Regulating Group 4 and 5 to be dropped with all or part of the remaining Regulating Groups (Groups 1, 2, 3, and 4) being sequentially inserted. In either case, the Transient Insertion Limit and withdrawal sequence specified in the CORE OPERATING LIMITS REPORT can be exceeded for up to 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months .

2 The Separation between Regulating Groups 4 and 5 may be reduced from the 90 inch value specified in Figures 3.1.7-1 and 3.1.7-2 provided that each of the following conditions are satisfied:

Page 8I

Revision 11 PVNGS UNIT 1 CORE OPERATING LIMITS REPORT a) Regulating Group 4 position is between 60 and 150 inches withdrawn.

b) Regulating Group 5 position is maintained at least 10 inches lower than Regulating Group 4 position.

c) Both Regulating Group 4 and Regulating Group 5 positions are maintained above the Transient Insertion Limit specified in Figure 3.1.7-1 (COLSS In Service) or Figure 3.1.7-2 (COLSS Out of Service).

3.1.8 - Part Strength CEA Insertion Limits One or more CEACs OPERABLE: The part strength CEA groups shall be limited to the insertion limits shown in Figure 3.1.8-1.

3.2.1 - Linear Heat Rate (LHR)

The linear heat rate limit of 13.1 kW/ft shall be maintained.

3.2.3 - Azimuthal Power Tilt (Tq)

The AZIMUTHAL POWER TILT (Tq) shall be less than or equal to 10% with COLSS IN SERVICE when power is greater than 20% and less than or equal to 50%. Additionally, the AZIMUTHAL POWER TILT (Tq) shall be less than or equal to 5% with COLSS IN SERVICE when power is greater than 50%. See Figure 3.2.3-1.

3.2.4 - Departure From Nucleate Boiling Ratio (DNBR)

COLSS IN SERVICE and Both CEACs INOPERABLE - Maintaining COLSS calculated core power less than or equal to COLSS calculated core power operation limit based on DNBR decreased by the allowance shown in Figure 3.2.4-1.

COLSS OUT OF SERVICE and Either One or Both CEACs are OPERABLE -

Operating within the region of acceptable operation of Figure 3.2.4-2 using any operable CPC channel.

COLSS OUT OF SERVICE and CEACs INOPERABLE - Operating within the region of acceptable operation of Figure 3.2.4-3 using any operable CPC channel.

Page 9 l

Revision 11 PVNGS UNIT 1 CORE OPERATING LIMITS REPORT 3.2.5 - Axial Shape Index (AST)

The core average AXIAL SHAPE INDEX (ASI) shall be maintained within the following limits:

COLSS OPERABLE

-0.18 *ASI :M.18 for power> 50%

-0.28 < ASI < 0.18 for power < 50%

COLSS OUT OF SERVICE (CPC)

-0.10 <ASI:50.10 3.3.12 - Boron Dilution Alarm System (BDAS)

With one or both start-up channel high neutron flux alarms inoperable, the RCS boron concentration shall be determined at the applicable monitoring frequency specified in Tables 3.3.12-1 through 3.3.12-5.

3.9.1 - Boron Concentration The boron concentration of all filled portions of the Reactor Coolant System and the refueling canal shall be maintained at a uniform concentration 2 3000 ppm.

Page 10 1

PVNGS UNIT 1 CORE OPERATING LIMITS REPORT Revision I I FIGURE 3.1.1-1 SHUTDOWN MARGIN VERSUS COLD LEG TEMPERATURE REACTOR TRIP BREAKERS OPEN 7

6 5

'4z g

03 (00, 0).........

j, REGION OF A CCEPTABLE OPERATION RGION: OF UNA CCEPTABLE OPERATION (350,1.0) i

.1

i.

i i

2 1

0 0

100 200 300 400 COLD LEG TEMPERATURE (SF) 500 600 Page 1I I

PVNGS UNIT 1 CORE OPERATING LIMITS REPORT Revision I I FIGURE 3.1.2-1 SHUTDOWN MARGIN VERSUS COLD LEG TEMPERATURE REACTOR TRIP BREAKERS CLOSED 7 1 '... '

I..

6 5

I.................

REGION OF ACCEPTABLE OPERATION (500,6.5)

/.....

tz z

0IE

/

4 3

(350,4.0)

REGION OF UNACCEPTABLE OPERATION 2

1 0

0 100 200 300 400 COLD LEG TEMPERATURE (-F) 500 600 Page 12 I

PVNGS UNIT 1 CORE OPERATING LIMITS REPORT Revision 1I1 0.5 0.0 0C 0

a-)

C~

-0.5

-1.0

-1.5

-2.0

-2.5

-3.0

-3.5 FIGURE 3.1.4-1 MTC ACCEPTABLE OPERATION, MODES 1 AND 2 o*f man

(O%,0.5.5

'to"*

8 a..............,*

....... "***ij'"s>.......................................

................I........

(50%,,.)

(.50%,-0.2

........MT C A REICA O 0F...........

ACCEPTABLE

........ OPERATION.............................

(100%,-4.

-4.0

-4.5 0

10 20 30 40 50 60 70 80 90 100 CORE POWER LEVEL

(% OF RATED THERMAL POWER)

End of Cycle Limit Beginning of Cycle Limit TECH SPEC 3.1.4 Maximum Upper Limit 100,01sl.,

Page 13 I

PVNGS UNIT I CORE OPERATING LIMITS REPORT Revision 1II FIGURE 3.1.5-1 CORE POWER LIMIT AFTER CEA DEVIATION*

30 25 zo 0

0h

~ O 20 15 10

.. i...... i.i...i.i...iii

........ -i- -

5 0

0 10 20 30 40 50 60 TIME AFTER DEVIATION, MINUTES

WHEN CORE POWER IS REDUCED TO 55% OF RATED THERMAL POWER PER THIS LIMIT CURVE, FURTHER REDUCTION IS NOT REQUIRED.

Page 14 I

PVNGS UNIT I CORE OPERATING LIMITS REPORT Revision I I FIGURE 3.1.7-1 CEA INSERTION LIMITS VERSUS THERMAL POWER (COLSS IN SERVICE) 1.0 0.9 0.8 r -

0 z

0 9

0.7 0.6 0.5 0.4 0.3 on.,

0_....

PE VI..

u Q.

co F-3 tj

r. O zi 0 I

e i5<** j*...

I 1

~*a I0 o:

(SEEFOOQT-N TE-IN -SEC-TI FORX~PPLICX:BIlITY FOLI A.RE, ACTPJR CUTBAK)

.!& K...

i i

.I.,.\\w '

+.M...

.j i i i

)N 3

.....j--..

.- GRP 4 POS = (i72.5XFRA-C;PWR)-*25.5.

1

&RP S POS = (i72.5:x FRAC. PWR) - 64.5

,OWING 0.2 0.1 0.0

............,jjj

-j **e*-'

GROUP5 GROUP3 GROUP 1 i

[I i I

_ i _ _

150 120 90 60 30 0 150 120 90 60 GROUP4 I

I I

30 0

150 GROUP2 I

I I

120 90 60 I

I 30 0

10 120 90 6do'o 6 I k 1i0o 40 do CEA POSITION (INCHES WITHDRAWN) 310 6

Page 15 I

PVNGS UNIT I CORE OPERATING LIMITS REPORT Revision I I FIGURE 3.1.7-2 CEA INSERTION LIMITS VERSUS THERMAL POWER (COLSS OUT OF SERVICE) 1.0 0.9 0.8 0

a P.

IJ 0

z 00 0.7 0.6 0.5 0.4 0.3

. I,.

i 0.2 0.1 0.0 GROUP 5 GROUP 3 GROUP 1 111111111 iI i---+--

150 120 90 (30 30 0

150 GROUP 4 I

I I

I 120 90 60 30 0

150 GROUP 2 I

_ I I

I I

I 120 90 60 30 0

1^0 120 90 610 3d o

0go 1 o0 12 0 do CEA POSITION (INCHES WITHDRAWN)

Page 16 I

PVNGS UNIT 1 CORE OPERATING LIMITS REPORT Revision I I FIGURE 3.1.8-1 PART STRENGTH CEA INSERTION LIMITS VERSUS THERMAL POWER 0.0 10.0 20.0

'30.0 z

40.0 50.0 p

60.0 Z

Z 70.0 0

V)O 80.0 a.

U 90.0 z

100.0 En 110.0 9

120.0 130.0 140.0 150.0 I.

I......I...

I.

I

..I......

rASETNE

..IIT750 C;E;

............. La..

'Q ER kT:r

P E R T IO lJACPXL RESTRITE

.....................i..

i

.0 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0.0 FRACTION OF RATED THERMAL POWER Page 17 I

PVNGS UNIT 1 CORE OPERATING LIMITS REPORTResin1 Revision I I FIGURE 3.2.3-1 AZIMUTHAL POWER TILT VERSUS THERMAL POWER I (COLSS IN SERVICE) 20.0 15.0 LI.-

04 H

10.0 REGION OF UNACCEPTABLE OPERATION REGION OF ACCEPTABLE OPERATION 5.0 0.0L 20.

.0 30.0 40.0 50.0 60.0 70.0 80.0 90.0 100.0 CORE POWER LEVEL

(% OF RATED THERMAL POWER)

Page 18 I

PVNGS UNIT I CORE OPERATING LIMITS REPORT Revision 1 1 FIGURE 3.2.4-1 COLSS DNBR OPERATING LIMIT ALLOWANCE FOR BOTH CEAC's INOPERABLE 25 z0 r-ru AM

~ 9 LZ6 0Lz z E A:0 0

a:0cJ 20 15 10 5

0 0

25 50 75 CORE POWER LEVEL

(% OF RATED THERMAL POWER) 100 Page 19 I

PVNGS UNIT 1 CORE OPERATING LIMITS REPORT Revisi FIGURE 3.2.4-2 DNBR MARGIN OPERATING LIMIT BASED ON THE CORE PROTECTION CALCULATORS (COLSS OUT OF SERVICE, CEAC's OPERABLE) on 11 O I Z. i 2.4 2.3 I

ACCEPTABLE OPERATIO N ANY POWER LEVEL MINIMUM OF 1.CEAC OP.ERABLE

-0.02,2.38)

(0.1,2.32 0-

-lo. __ _

).1,2.29)

U4 C:

2.2 2.1 2.0 1.9 I.

iACCEtA PLE EPERATION POWER AT OR ABOVE 90%

,-----.E-.---i-.-.-

i MINIMUM OF 1.CEAC OPERABLFO i

E.(0.05,2.03) 1...i..(0.1. 2.03)

(-0.1,1.96)

.UNACCEPTAB}LE OPRA;A

LLLL

LLLLLI LLLL LLJ.L L.LLLL 1.8

-0.:20

-0.15

-0.10

-0.05 0.00 0.05 CORE AVERAGE ASI Page 20 0.10 0.15 0.20

PVNGS UNIT I CORE OPERATING LIMITS REPORT Revisior FIGURE 3.2.4-3 DNBR MARGIN OPERATING LIMIT BASED ON THE CORE PROTECTION CALCULATORS (COLSS OUT OF SERVICE, CEAC's INOPERABLE) 11l

.~

3.5 3.4 U4 Q

3.3

~~~~................

........... ;......................j_

ACEPA~EOPERATION 3.2 3.1 11n

-0.20

-0.15

-0.10

-0.05 0.00 0.05 0.10 CORE AVERAGE ASI 0.15 0.20 Page 21 I

Revision II PVNGS UNIT 1 CORE OPERATING LIMITS REPORT Table 3.3.12-1 REQUIRED MONITORING FREQUENCIES FOR BACKUP BORON DILUTION DETECTION AS A FUNCTION OF OPERATING CHARGING PUMPS AND PLANT OPERATIONAL MODES FOR Keff> 0.98 OPERATIONAL Number of Operating Charging Pumps MODE 0

1 2

3 3

12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months 0.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months ONA ONA 4 not on SCS 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months 0.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months ONA ONA 5 not on SCS 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 ONA ONA 4 & 5 on SCS ONA ONA ONA ONA Notes:

SCS = Shutdown Cooling System ONA = Operation Not Allowed Page 22 1

Revision 1I PVNGS UNIT 1 CORE OPERATING LIMITS REPORT Table 3.3.12-2 REQUIRED MONITORING FREQUENCIES FOR BACKUP BORON DILUTION DETECTION AS A FUNCTION OF OPERATING CHARGING PUMPS AND PLANT OPERATIONAL MODES FOR 0.98 2 Keff > 0.97 OPERATIONAL Number of Operating Charging Pumps MODE 0

1 2

3 3

12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months I hour 0.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months ONA 4 not on SCS 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 0.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months ONA 5 not on SCS 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 0.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months ONA 4 & 5 on SCS 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 ONA ONA Notes:

SCS = Shutdown Cooling System ONA = Operation Not Allowed Page 23 I

Revision 11 PVNGS UNIT I CORE OPERATING LIMITS REPORT Table 3.3.12-3 REQUIRED MONITORING FREQUENCIES FOR BACKUP BORON DILUTION DETECTION AS A FUNCTION OF OPERATING CHARGING PUMPS AND PLANT OPERATIONAL MODES FOR 0.97 > Kefw> 0.96 OPERATIONAL Number of Operating Charging Pumps MODE 0

1 2

3 3

12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months 2.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months I hour ONA 4 not on SCS 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months 2.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months I hour 0.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months 5 not on SCS 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 I hour 0.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months 4 & 5 on SCS 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months I hour ONA ONA Notes:

SCS = Shutdown Cooling System ONA = Operation Not Allowed Page 24

Revision 11 PVNGS UNIT 1 CORE OPERATING LIMITS REPORT Table 3.3.12-4 REQUIRED MONITORING FREQUENCIES FOR BACKUP BORON DILUTION DETECTION AS A FUNCTION OF OPERATING CHARGING PUMPS AND PLANT OPERATIONAL MODES FOR 0.96 > Keff> 0.95 OPERATIONAL Number of Operating Charging Pumps MODE 0

1 2

3 3

12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months 3 hours 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months 0.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months 4 not on SCS 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months 3.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months 1.5 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 5 not on SCS 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months 3.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months 1.5 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 4 & 5 on SCS 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 0.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months ONA Notes:

SCS = Shutdown Cooling System ONA = Operation Not Allowed Page 25 I

Revision 11 PVNGS UNIT 1 CORE OPERATING LIMITS REPORT Table 3.3.12-5 REQUIRED MONITORING FREQUENCIES FOR BACKUP BORON DILUTION DETECTION AS A FUNCTION OF OPERATING CHARGING PUMPS AND PLANT OPERATIONAL MODES FOR Keff.0-95 OPERATIONAL Number of Operating Charging Pumps MODE 0

1 2

3 3

12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months 4 hours 1.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months I hour 4 not on SCS 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months 4.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months 2 hours I hour 5 not on SCS 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months 4.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months 2 hours I hour 4 & 5 on SCS 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months 2 hours 0.75 hours8.680556e-4 days 0.0208 hours 1.240079e-4 weeks 2.85375e-5 months ONA 6

24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months 1.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months ONA ONA Notes:

SCS = Shutdown Cooling System ONA = Operation Not Allowed Page 26 l

ML041460267

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Dear Sirs:

Subject:

Enclosure:

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