Text

Rev 1 to COLR for PVNGS Unit 2
	ML20151S090
Person / Time
Site:	Palo Verde
Issue date:	08/21/1998
From:	; ARIZONA PUBLIC SERVICE CO. (FORMERLY ARIZONA NUCLEAR
To:	;
Shared Package
ML20151S083	List: ML20151S079; ML20151S086; ML20151S090; ML20151S094;
References
	NUDOCS 9809020026
	Download: ML20151S090 (26)
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. - -.

e Core Operating Limits Report PVNGS Unit 2, Revision 1 1

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9809020026 980821 PDR ADOCK 05000528 P

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PVNGS UNIT 2 CORE OPERATING LIMITS REPORT o

1 i

4 CORE OPERATING LIMITS REPORT J

PALO VERDE NUCLEAR GENERATING STATION (PVNGS)

UNIT 2 e

Revision 1 1

Page 1 of 25 j

l

Revision 1

)

PVNGS UNIT 2 CORE OPERATING LIMITS REPORT Table of Contents l

Description' Revision #

Pace j

1 1

Cover Page Table of Contents 1

2 l

Affected Technical Specifications 1

4 i

l CORE Operating Limits i

3.1.1 Shutdown Margin (SDM)- Reactor Trip Breakers Open 1

4 3.1.2 Shutdown Margin (SDM) - Reactor Trip Breakers Closed 1

4 3.1.4 Moderator Temperature Coefficient (MTC) 1 5

3.1.5 Control Element Assembly (CEA) Alignment 1

5 3.1.7 Regulating CEA Insertion Limits 1

5 3.1.8 Part Length CEA Insertion Limits 1

5 3.2.1 Linear Heat Rate (LHR) 1 6

3.2.3 Azimuthal Power Tilt (Tq) 1 -.

6 3.2.4 Departure From Nucleate Boiling Ratio (DNBR) 1 6

3.2.5 Axial Shape Index (ASI) 1 7

3.3.12 Boron Dilution Alarm System (BDAS) 1 7

3.9.1 Boron Concentration 1

7 List of Figures 1

8 Figure 3.1.1-1 Shutdown Margin Versus Cold Leg Temperature 1

9 Reactor Trip Breakers Open Figure 3.1.2-1 Shutdown Margin Versus Cold Leg Temperature 1

10 Reactor Trip Breakers Closed Figure 3.1.4-1 MTC Acceptable Operation, Modes I and 2 1

11 Figure 3.1.5-1 Core Power Limit After CEA Deviation i

12 Figure 3.1.7-1 CEA Insertion Limits Versus Thermal Power 1

13 (COLSS in Service)

Figure 3.1.7-2 CEA Insertion Limits Versus Thermal Power 1

14 (COLSS Out of Service)

Figure 3.1.8-1 Part Length CEA Insertion Limits Versus Thermal Power 1

15 Page 2 of 25 a

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Revision 1 PVNGS UNIT 2 CORE OPERATING LIMITS REPORT Table of Contents (Continued)

Description Revision #

Page Figure 3,2.3-1 Azimuthal Power Tilt Versus Thermal Power 1

16 (COLSS in Service).

Figure 3.2.4-1 COLSS DNBR Operating Limit Allowance for Both 1

17 CEACs Inoperable Figure 3.2.4-2 DNBR Margin Operating Limit Based on the Core 1

18 Protection Calculators (COLSS Out of Service, CEACs Operable)

Figure 3.2.4-3 DNBR Margin Operating Limit Based on the Core 1

19 Protection Calculators (COLSS Out of Service, CEACs Inoperable)

List of Tables 1

20 Table 3.3.12-1 Required Monitoring Frequencies for Backup Boron 1

21 Dilution Detection as a Function of Operating Charging Pumps and Plant Operational Modes for Keff> 0.98 Table 3.3.12-2 Required Monitoring Frequencies for Backup Boron 1

22 Dilution Detection as a Function of Operating Charging Pumps and Plant Operational Modes for 0.98 2 Keff > 0.97 Table 3.3.12-3 Required Monitoring Frequencies for Backup Boron 1

23 Dilution Detection as a Function of Operating Charging Pumps and Plant Operational Modes for 0.97 2 Keff > 0.96 Table 3.3.12-4 Required Monitoring Frequencies for Backup Boron 1

24 Dilution Detection as a Function of Operating Charging Pumps and Plant Operational Modes for 0.96 2 Keff > 0.95 Table 3.3.12-5 Required Monitoring Frequencies for Backup Boron 1

25 Dilution Detection as a Function of Operating Charging Pumps and Plant Operational Modes for Keff s 0.95 Page 3 of 25

Revision I

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PVNGS UNIT 2 CORE OPERATING LIMITS REPORT l

i 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 2 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 Length CEA Insertion Limits 3.2.1 Linear Heat Rate (LHR) 3.2.3 Azimuthal Power Tilt (T )

q 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 CORE OPERATING LIMITS The cycle-specific operating limits for the specifications listed are presented below.

3.1.1 - Shutdown Marcin (SDM)- Reactor Trio Breakers Onen The Shutdown Margin shall be greater than or equal to that shown in Figure 3.1.1-1.

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

Page 4 of 25 i

Revision 1 PVNGS UNIT 2 CORE OPERATING LIMITS REPORT CORE OPERATING LIMITS - CONTINUED 3.1.4 - Moderator Temoerature 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 Assembiv (CE A) Alignment With one or more full-length or part-length CEAs misaligned from any other CEAs in its group by more than 6.6 inches, the minimum required MODES 1 and 2 core power reduction is specified in Figure 3.1.5-1.

3.1.7 - Reculatinc 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 3.1.7-1; with COLSS OUT l

l OF SERVICE, regulation CEA groups shall be limited to the withdrawal sequence and to the insertion limits shown in l

l Figure 3.1.7-2.

1 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 .

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

1 Page 5 of 25 1

Revision 1 PVNGS UNIT 2 CORE OPERATING LIMITS REPORT i

1 I

CORE OPER ATING LIMITS - CONTINUED 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 (T )

q The AZIMUTHAL POWER TILT (T ) shall be less than or equal to the q

limit in Figure 3.2.3-1 with COLSS IN SERVICE.

3.2.4 - Deoarture From Nucleate Boiline Ratio (DNBR)

COLSS IN SERV' ICE 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 acceptabb 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 6 of 25

Revision 1 PVNGS UNIT 2 CORE OPERATING LIMITS REPORT CORE OPERATING LIMITS - CONTINUED 3.2.5 - Axial Shane Index (ASD The core average kXIAL SHAPE INDEX (ASI) shall be maintained within the following limits.

COLSS OPERABLE

-0.186 s ASI s 0.164 COLSS OUT OF SERVICE (CPC)

-0.10 s ASI s 0.10 j

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 1

applicable monitoring frequency specified in Tables 3.3.12-1 through 3.3.12-5.

l t

I 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 j

concentration 2 3000 ppm.

l I

i I

Page 7 of 25 t

a f

I

... _ _. _ _ _._ _____.. _ ~

Revision 1 PVNGS UNIT 2 CORE OPER'ATING LIMITS REPORT

~

LIST OF FIGURES 3.1.1-1.

Shutdown Margin Versus Cold Leg Temperature, Reactor Trip Breakers Open i

Shutdown Margin hersus Cold Leg Temperature, Reactor Trip Breakers 3.1.2-1.

Closed i

1 3.1.41.

MTC Acceptable Operation, Modes 1 and 2.

3.1.5-1.

Core Power Limit After CEA Deviation.

3 3.1.7-1.

CEA Insertion Limits Versus Thermal Power (COLSS In Service).

4 3.1.7-2.

CEA Insertion Limits Versus Thermal Power (COLSS Out of Service) l 3.1.8-1.

Part Length CEA Insertion Limit Versus Thermal Power.

i 3.2.3-1.

Azimuthal Power Tilt Limit Versus Thermal Power (COLSS In Service).

l

'l 3.2.4-1.

COLSS DNBR Power Operating Limit Allowance for Both CEACs Inoperable.

i l

'3.2.4-2.

DNBR Margin Operating Limit Based on Core Protection Calculators (COLSS Out of Service, CEACs Operable) f 3.2.4-3.

DNBR Margin Operating Limit Based on Core Protection Calculators (COLSS Out of Service, CEACs Inoperable) i Page 8 of 25

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Revision 1 PVNGS UNIT 2 CORE OPERATING LIMITS REPORT FIGURE 3.1.1-1 SHUTDOWN MARGIN VERSUS COLD LEG TEMPERATURE REACTOR TRIP BREAKERS OPEN

-7 n

X 6

N REGION OF g

1-ACCEPTABLE 5

(500;5.0 OPERATION C

M v 4 Z

O w

REGidN OF e

Z UNACCEPTABLE N

2 O

OPERATION O

F C

1)

(350,1.0) 0 0

100 200 300 400 500 600 COLD LEG TEMPERATURE ('F)

Page 9 of 25

Revision 1 PVNGS UNIT 2 CORE OPERATING LIMITS REPORT FIGURE 3.1.2-1 SHUTDOWN MARGIN VERSUS COLD LEG TEMPERATURE REACTOR. TRIP BREAKERS CLOSED 7.

(500,6.

6 D

REGION O.:

l ACCEPTABLE

,55 j

m OPERATION a

M (360,4.0) 223 E

REGION OF

'2 S

UNACCdPTABLS F

OPERATION

D

~

1 O

0 100 200 300 400 500 600 C LD LEG TEMPERATURE ( F)

Page 10 of 25

k

,,g 0.5 -

( gs, gy - - - _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ - -

Tech. Spec. 3.1.4 Max'imum Upper Limit e

-- __________.t$egining 01 Lycie Limit M

W 0.0 -

(sos.0.0).__.___________________________---_----------(3002,oj R

o (200'

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W

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y o

z t

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MTC AREA OF M

m

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. _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __ _ _ _ _ _ _ _ _ _ __ E n d nLCy_cJe LimiL M

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( 100x. - 4.0) }Z M

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CORE POWER LEVEL (% OF RATED TilERMAL POWER)

N.

v e_

e e,

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y n,

+

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l Revtsson 1 PVNGS UNIT 2 CORE OPERATING LIMITS REPORT FIGURE 3.1.5-1 CORE POWER LIMIT AFTER CEA DEVIATION

30 i

Z C

FU 25 m

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(an mN 90 ns Z $

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(ae, 2,,0.cz) j 0

10 20 30 40 50 60 TIME AFTER DEVlATION, MINUTES

- WHEN CORE POWER IS REDUCED TO 55% OF RATED THERM POWER PER THIS LIMIT CURVE, FURTHER REDUCTION IS NOT REQUIRED Page 12 of 25

1.0 0.9 5-i-z j

4 SEE_EGOIN DIE _ IN_SECTION _3.'I.

m0a x

m FOR APPLICABILITY FOLLOWIN G o

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GROUP 5 GROUP 3 GROUP 1 r

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3 150 120 90 60 30 0

150 120 90 60 30 0

m 4

GROUP 4 GROUP 2 m

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CEA POSITION (INCIIES WITIIDRAWN) i a

1.0 0.9 zO E!E FOOTN DIE _ IN_SECIlON_3;L FOR APPLICABILITY 1:OLLOWING o

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=

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~~R COLSS DNBR POWER OPERATING LIMIT REDUCTION~~

~~(% OF RATED THERMAL POWER)~~

~~Page 17 of 25~~

~~, ~.,. _.~~

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~~Revision 1 PVNGS UNIT 2 CORE OPERATING LIMITS REPORT FIGURE 3.2.4-2 DNBR MARGIN OPERATING LIMIT BASED ON THE CORE PROTECTION CALCULATORS (COLSS OUT OF SERVICE, CEAC's OPERABLE)~~

~~ACCEPTABLd OPERATION A Y POWER LEV L MINIMUM OF 1 CEAC OPERABLE (0.03, !2.33)~~

~~/0.1, 2.33)~~

/

\\

5

)

[

~~(-0.1, 2.24)~~

~

~~I 2.2 '~~

~~ACCEPTABLE OPER ON 3~~

~~POWER AT OR ABOVE 90%~~

~~2.1 MINIMUM OF 1 CEAC OPERAbu:~~

~~(0.05, 2.03)l; l~~

e#

~~(0.1, 2.03)~~

~~N i~~

~~2.0~~

~~(- 0.1, 1.96):~~

~~1.9 UNACCEPTABiE OPERATION~~

~~.j.~~

~~1.8,.~~

~~-0.20 -0.15 -0.10 -0.05 0.00 0.05 0.10 0.15 0.20 CORE AVERAGE ASI Page 18 of 25~~

~~Revision 1 PVNGS UNIT 2 CORE OPERATING LIMITS REPORT FIGURE 3.2.4-3 DNBR MARGIN OP.ERATING LIMIT BASED ON THE CORE PROTECTION CALCULATORS (COLSS OUT OF SERVICE, CEAC's INOPERABLE) 3.6 l~~

~~3.5 ACCEPT ^BLE OPERATION Z~~

~~ANY POWER LEVEL C~~

~~Z 3.4 i~~

~~C CEAC's INOPERABL'E E~~

~~.(0.1, 3.32) 3~~

~~/i i~~

~~t 33~~

~~_d (0.00, 3.32)~~

~~Z G~~

e

~~(-0.1, 3.19)'~~

~~O UNACCEPTABLE 3.1 OPERATION i~~

~~3.0~~

~~.i.~~

~~-0.20 -0.15 -0.10 -0.05 0.00 0.05 0.10 0.15 0.20 CORE AVERAGE ASI l~~

~~Page 19 of 25~~

~~. ~~~

~~Revision I PVNGS UNIT 2 CORE OPERATING LIMITS REPORT LIST OF TABLES 3.3.12-1.~~

~~Required Monitoring Frequencies for Backup Boron Dilution Detection as a Function of Operating Charging Pumps and Plant Operational Modes for K g> 0.98.~~

~~e 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 K g> 0.97; e~~

~~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 2 K g> 0.96.~~

~~e 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 2 K g> 0.95.~~

~~i e~~

~~3.3.12-5.~~

~~Required Monitoring Frequencies for Backup Boron Dilution Detection as a Function of Operating Charging Pumps and Plant Operational Modes for K gs 0.95.~~

~~e l~~

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~~Page 20 of 25 l~~

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Revision i PVNGS UNIT 2 CORE OPERATING LIMITS REPORT TABLE 3.3.12-1 REQUIRED MONITORING FREQUENCIES FOR B ACKUP BORON DILUTION DETECTION AS A FUNCTION OF OPERATING CHARGING PUMPS AND PLANT OPERATIONAL MCDES FOR K rr> 0.98 e

~~Number of Operating Charging Pumps OPERATIONAL MODE 0~~

~~1 2~~

~~3 e~~

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 i

~~4 & 5 on SCS ONA ONA ONA ONA f~~

~~Notes: SCS = Shutdown Cooling System ONA = Operation Not Allowed j~~

~~l l~~

~~i 1~~

~~Page 21 of 25~~

~~Revision i PVNGS UNIT 2 CORE OPERATING LIMITS REPORT i~~

~~1 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 K rr> 0.97 e~~

~~a-1 Number of Operating Charging Pumps OPERATIONAL MODE 0~~

~~1 2~~

~~3 3~~

12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months Ihour 0.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months ONA u

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 i

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 i

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 4

~~J Notes: SCS = Shutdown Cooling System ONA = Operation Not Allowed d~~

~~4 4~~

~~i h~~

~~Page 22 of 25 1~~

)

~~b i~~

Revision 1 PVNGS UNIT 2 CORE OPERATING LIMITS REPORT TABLE 3.3.12-3 REQUIRED MONITORING FREQUENCIES FOR B ACKUP BORON DILUTION DETECTION AS A FUNCTION OF OPERATING CHARGINO PUMPS AND PLANT OPERATIONAL MODES FOR 0.97 2 K rr> 0.96 e

~~'I E~~

~~E" OPERATIONAL MODE j~~

~~0 1~~

~~2 3~~

~~l r~~

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 Ihour ONA 1

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 Ihour 0.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months j

~~4 & 5 on SCS 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months Ihour ONA ONA~~

~~-l i~~

~~I Notes: SCS = Shutdown Cooling System l~~

~~ONA = Operation Not Allowed i~~

~~i l~~

~~i I~~

~~i h~~

~~i I~~

~~i i~~

~~f i~~

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~~Page 23 of 25 l~~

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Revision 1 PVNGS UNIT 2 CORE OPERATING LIMITS REPORT TABLE 3.3.12-4 REQblRED MONITORING FREQUENCIES FOR BACKUP BORON DILUTION DETECTION AS A FUNCTION OF OPERATING CHARGING PUMPS M PLANT OPERATIONAL MODES FOR 0.96 2 K g> 0.95 e
p 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 Ihour 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 i
Page 24 of 25
Revision 1
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PVNGS UNIT 2 CORE OPERATING LIMITS REPORT TABLE 3.3.12-5 REQUIRED MONITORING FREQUENCIES FOR B ACKUP BORON DILUTION DETECTION AS A FUNCTION OF OPERATING CHARGING PUMPS AND PLANT OPERATIONAL MODES FOR K rr 5; 0.95 e
S "E OPERATIONAL MODE 0
1 2
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 1 hour 3
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 Ihour 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 Ihour 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
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ML20151S090

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