ML24183A262

Unit, Technical Specification Bases, Manual

ML24183A262
Person / Time
Site:	Susquehanna
Issue date:	06/19/2024
From:	Susquehanna
To:	Document Control Desk, Office of Nuclear Reactor Regulation
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Download: ML24183A262 (1)

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of 2

SSES MANUAL Manual Name:

TSBl 2nual

Title:

TECHNICAL SPECIFICATION BASES UNIT 1 MANUAL Table Of Con t e nts Issue Date:

06/ 18/2024 Procedure Name Rev Issue Date Change ID Change Number TEXT LOES 134 01/03/2019 Title : LIST OF EFFECTIVE SECTIONS TEXT TOC 25 03/05/2019

Title:

TABLE OF CONTENTS TEXT 2. 1.1 8

04/04/2024

Title:

SAFETY LIMITS (SLS) REACTOR CORE SLS TEXT 2.1.2 1

10/04/2007 Title : SAFETY LIMITS (SLS) REACTOR COOLANT SYSTEM (RCS) PRESSURES TEXT 3.0 5

03/18/2021

Title:

LIMITING CONDITION FOR OPERATION (LCO) APPLICABILITY TEXT 3.1.1 3

04 /04/2024

Title:

REACTIVITY CONTROL SYSTEMS SHUTDOWN MARGIN (SDM)

TEXT 3.1.2 0

11/15/2002

Title:

REACTIVITY CONTROL SYSTEMS REACTIVITY ANOMALIES TEXT 3. 1.3 4

04/04/2024

Title:

REACTIVITY CONTROL SYSTEMS CONTROL ROD OPERABILITY TEXT 3.1.4 5

11/16/2016 Title : REACTIVITY CONTROL SYSTEMS CONTROL ROD SCRAM TIMES TEXT 3.1.5 2

11/16/2016

Title:

REACTIVITY CONTROL SYSTEMS CONTROL ROD SCRAM ACCUMULATORS TEXT 3. 1.6 6

04/04/2024

Title:

REACTIVITY CONTROL SYSTEMS ROD PATTERN CONTROL Page 1 of 8

Report Date : 06/20/24

SSES MANUAL Manual Name:

TSBl

~nual

Title:

TECHNICAL SPECIFICATION BASES UNIT 1 MANUAL TEXT 3.1.7 5

01/05/2023

Title:

REACTIVITY CONTROL SYSTEMS STANDBY LIQUID CONTROL (SLC) SYSTEM TEXT 3.1.8 4

11/16/2016

Title:

REACTIVITY CONTROL SYSTEMS SCRAM DISCHARGE VOLUME (SDV) VENT AND DRAIN VALVES TEXT 3.2.1 4

03/29/2022

Title:

POWER DISTRIBUTION LIMITS AVERAGE PLANAR LINEAR HEAT GENERATION RATE (APLHGR)

TEXT 3.2.2 6

04/04/2024

Title:

POWER DISTRIBUTION LIMITS MINIMUM CRITICAL POWER RATIO (MCPR)

TEXT 3.2.3 4

03/29/2022

Title:

POWER DISTRIBUTION LIMITS LINEAR HEAT GENERATION RATE (LHGR)

~XT 3.3.1.1 8

01/05/2023

Title:

INSTRUMENTATION REACTOR PROTECTION SYSTEM (RPS) INSTRUMENTATION TEXT 3.3.1.2 4

01/23/2018

Title:

INSTRUMENTATION SOURCE RANGE MONITOR (SRM) INSTRUMENTATION TEXT 3.3.2.l 7

04/04/2024

Title:

INSTRUMENTATION CONTROL ROD BLOCK INSTRUMENTATION TEXT 3.3.2.2 4

01/05/2023

Title:

INSTRUMENTATION FEEDWATER MAIN TURBINE HIGH WATER LEVEL TRIP INSTRUMENTATION TEXT 3.3.3.l 10 11/16/2016

Title:

INSTRUMENTATION POST ACCIDENT MONITORING (PAM) INSTRUMENTATION TEXT 3.3.3.2 2

11/16/2016

Title:

INSTRUMENTATION REMOTE SHUTDOWN SYSTEM TEXT 3.3.4.1 4

01/05/2023

Title:

INSTRUMENTATION END OF CYCLE RECIRCULATION PUMP TRIP (EOC-RPT) INSTRUMENTATION of 8 Report Date: 06/20/24

SSES MANUAL Manual Name:

TSBl

~anual

Title:

TECHNICAL SPECIFICATION BASES UNIT 1 MANUAL TEXT 3.3.4.2 2

01/05/2023

Title:

INSTRUMENTATION ANTICIPATED TRANSIENT WITHOUT SCRAM RECIRCULATION PUMP TRIP (ATWS-RPT) INSTRUMENTATION TEXT 3.3.5.1 6

01/05/2023

Title:

INSTRUMENTATION EMERGENCY CORE COOLING SYSTEM (ECCS) INSTRUMENTATION TEXT 3.3.5.2 3

03/18/2021

Title:

REACTOR PRESSURE VESSEL (RPV) WATER INVENTORY CONTROL INSTRUMENTATION TEXT 3.3.5.3 1

01/05/2023

Title:

UNIT 1 REACTOR PRESSURE VESSEL WIC TS CHANGES TEXT 3.3.6.1 10 01/05/2023

Title:

INSTRUMENTATION PRIMARY CONTAINMENT ISOLATION INSTRUMENTATION

'T'EXT 3. 3. 6. 2 6

03/05/2019

Title:

INSTRUMENTATION SECONDARY CONTAINMENT ISOLATION INSTRUMENTATION TEXT 3.3.7.1 4

03/05/2019

Title:

INSTRUMENTATION CONTROL ROOM EMERGENCY OUTSIDE AIR SUPPLY (CREOAS) SYSTEM INSTRUMENTATION TEXT 3.3.8.1 6

01/05/2023

Title:

INSTRUMENTATION LOSS OF POWER (LOP) INSTRUMENTATION TEXT 3.3.8.2 1

11/16/2016

Title:

INSTRUMENTATION REACTOR PROTECTION SYSTEM (RPS) ELECTRIC POWER MONITORING TEXT 3.4.1 7

05/13/2022

Title:

REACTOR COOLANT SYSTEM (RCS) RECIRCULATION LOOPS OPERATING TEXT 3.4.2 5

05/13/2022

Title:

REACTOR COOLANT SYSTEM (RCS) JET PUMPS TEXT 3.4.3 3

01/13/2012

Title:

REACTOR COOLANT SYSTEM RCS SAFETY RELIEF VALVES S/RVS Page 3 of 8

Report Date: 06/20/24

SSES MANUAL Manual Name:

TSBl

~nual

Title:

TECHNICAL SPECIFICATION BASES UNIT 1 MANUAL TEXT 3.4.4 1

11/16/2016

Title:

REACTOR COOLANT SYSTEM *(RCS) RCS OPERATIONAL LEAKAGE TEXT 3.4.5 2

04/13/2016

Title:

REACTOR co*oLANT SYSTEM (RCS) RCS PRESSURE ISOLATION VALVE (PIV) LEAKAGE TEXT 3.4.6 5

11/16/2016

Title:

REACTOR COOLANT SYSTEM (RCS) RCS LEAKAGE DETECTION INSTRUMENTATION TEXT 3.4.7 3

11/16/2016

Title:

REACTOR COOLANT SYSTEM (RCS) RCS SPECIFIC ACTIVITY TEXT 3.4.B 3

11/16/2016

Title:

REACTOR COOLANT SYSTEM (RCS) RESIDUAL HEAT REMOVAL (RHR) SHUTDOWN COOLING SYSTEM HOT SHUTDOWN "i:XT 3.4.9 2

11/16/2016

Title:

REACTOR COOLANT SYSTEM (RCS) RESIDUAL HEAT REMOVAL (RHR) SHUTDOWN COOLING SYSTEM

- COLD SHUTDOWN TEXT 3.4.10 6

05/14/2019

Title:

REACTOR COOLANT SYSTEM (RCS) RCS PRESSURE AND TEMPERATURE (P/T) LIMITS TEXT 3.4.11 1

11/16/2016

Title:

REACTOR COOLANT SYSTEM (RCS) REACTOR STEAM DOME PRESSURE TEXT 3.5.1 9

01/05/2023

Title:

EMERGENCY CORE COOLING SYSTEMS (ECCS) REACTOR PRESSURE VESSEL (RPV) WATER INVENTORY CONTROL AND REACTOR CORE ISOLATION COOLING (RCIC) SYSTEM ECCS OPERATING TEXT 3.5.2 5

06/09/2022

Title:

EMERGENCY CORE COOLING SYSTEMS (ECCS) REACTOR PRESSURE VESSEL (RPV) WATER INVENTORY CONTROL AND REACTOR CORE ISOLATION COOLING (RCIC) SYSTEM ECCS OPERATING TEXT 3.5.3 7

01/05/2023 Page 4

Title:

EMERGENCY CORE COOLING SYSTEMS (ECCS) REACTOR PRESSURE VESSEL (RPV) WATER INVENTORY CONTROL AND REACTOR CORE ISOLATION COOLING (RCIC) SYSTEM ECCS OPERATING of B

Report Date: 06/20/24

SSES MANUAL Manual Name:

TSBl

• ,anual

Title:

TECHNICAL SPECIFICATION BASES UNIT 1 MANUAL TEXT 3.6.1.1 6

11/16/2016

Title:

PRIMARY CONTAINMENT TEXT 3.6.1.2 3

01/05/2023

Title:

CONTAINMENT SYSTEMS PRIMARY CONTAINMENT AIR LOCK TEXT 3. 6. 1. 3 19 01/05/2023

Title:

CONTAINMENT SYSTEMS PRIMARY CONTAINMENT ISOLATION VALVES (PCIVS)

TEXT 3.6.1.4 3

11/27/2023

Title:

CONTAINMENT SYSTEMS CONTAINMENT PRESSURE TEXT 3.6.1.5 2

11/16/2016

Title:

CONTAINMENT SYSTEMS DRYWELL AIR TEMPERATURE

'!:XT 3.6.1.6 2

01/05/2023

Title:

CONTAINMENT SYSTEMS SUPPRESSION CHAMBER-TO-DRYWELL VACUUM BREAKERS TEXT 3.6.2.1 3

11/16/2016

Title:

CONTAINMENT SYSTEMS SUPPRESSION POOL AVERAGE TEMPERATURE TEXT 3.6.2.2 2

03/05/2019

Title:

CONTAINMENT SYSTEMS SUPPRESSION POOL WATER LEVEL TEXT 3.. 6. 2. 3 3

01/05/2023

Title:

CONTAINMENT SYSTEMS RESIDUAL HEAT REMOVAL (RHR) SUPPRESSION POOL COOLING TEXT 3.6.2.4 2

01/05/2023

Title:

CONTAINMENT SYSTEMS RESIDUAL HEAT REMOVAL (RHR) SUPPRESSION POOL SPRAY TEXT 3.6.3.1 2

06/13/2006

Title:

CONTAINMENT SYSTEMS PRIMARY CONTAINMENT HYDROGEN RECOMBINERS TEXT 3.6.3.2 4

04/22/2020

Title:

CONTAINMENT SYSTEMS DRYWELL AIR FLOW SYSTEM Page 5 of 8

Report Date: 06/20/24

SSES MANUAL Manual Name:

TSBl

~nual

Title:

TECHNICAL SPECIFICATION BASES UNIT 1 MANUAL TEXT 3.6.3.3 4

06/18/2024

Title:

CONTAINMENT SYSTEMS PRIMARY CONTAINMENT OXYGEN CONCENTRATION TEXT 3.6.4.1 16 12/16/2020

Title:

CONTAINMENT SYSTEMS SECONDARY CONTAINMENT TEXT 3.6.4.2 14 03/05/2019

Title:

CONTAINMENT SYSTEMS SECONDARY CONTAINMENT ISOLATION VALVES (SCIVS)

TEXT 3.6.4.3 7

03/05/2019

Title:

CONTAINMENT SYSTEMS STANDBY GAS TREATMENT (SGT) SYSTEM TEXT 3.7.1 8

01/05/2023

Title:

PLANT SYSTEMS RESIDUAL HEAT REMOVAL SERVICE WATER (RHRSW) SYSTEM AND THE ULTIMATE HEAT SINK (UHS)

<.:XT 3.7.2 01/05/2023

Title:

PLANT SYSTEMS EMERGENCY SERVICE WATER (ESW) SYSTEM TEXT 3.7.3 4

03/05/2019

Title:

PLANT SYSTEMS CONTROL ROOM EMERGENCY OUTSIDE AIR SUPPLY (CREOAS) SYSTEM TEXT 3.7.4 2

03/05/2019

Title:

PLANT SYSTEMS CONTROL ROOM FLOOR COOLING SYSTEM TEXT 3.7.5 2

11/16/2016

Title:

PLANT SYSTEMS MAIN CONDENSER OFFGAS TEXT 3.7.6 3

11/16/2016

Title:

PLANT SYSTEMS MAIN TURBINE BYPASS SYSTEM TEXT 3.7.7 2

11/16/2016

Title:

PLANT SYSTEMS SPENT FUEL STORAGE POOL WATER LEVEL TEXT 3.7.8 1

11/16/2016

Title:

PLANT SYSTEMS Page 6 of 8

Report Date: 06/20/24

SSES MANUAL Manual Name:

TSBl

-~nual

Title:

TECHNICAL SPECIFICATION BASES UNIT 1 MANUAL TEXT 3.8.1 15 01/05/2023

Title:

ELECTRICAL POWER SYSTEMS AC SOURCES - OPERATING TEXT 3.8.2 2

03/18/2021

Title:

ELECTRICAL POWER SYSTEMS AC SOURCES -

SHUTDOWN TEXT 3.8.3 7

08/07/2019

Title:

ELECTRICAL POWER SYSTEMS DIESEL FUEL OIL, LUBE OIL, AND STARTING AIR TEXT 3.8.4 5

01/05/2023

Title:

ELECTRICAL POWER SYSTEMS DC SOURCES - OPERATING TEXT 3.8.5 2

03/05/2019

Title:

ELECTRICAL POWER SYSTEMS DC SOURCES -

SHUTDOWN

'!:XT 3. 8. 6 3

11/27/2023

Title:

ELECTRICAL POWER SYSTEMS BATTERY CELL PARAMETERS TEXT 3.8.7 4

01/05/2023

Title:

ELECTRICAL POWER SYSTEMS DISTRIBUTION SYSTEMS - OPERATING TEXT 3.8.8 2

03/05/2019

Title:

ELECTRICAL POWER SYSTEMS DISTRIBUTION SYSTEMS -

SHUTDOWN TEXT 3.9.1 1

11/16/2016

Title:

REFUELING OPERATIONS REFUELING EQUIPMENT INTERLOCKS TEXT 3.9.2 2

11/16/2016

Title:

REFUELING OPERATIONS REFUEL POSITION ONE-ROD-OUT INTERLOCK TEXT 3.9.3 1

11/16/2016

Title:

REFUELING OPERATIONS CONTROL ROD POSITION TEXT 3.9.4 0

11/15/2002

Title:

REFUELING OPERATIONS CONTROL ROD POSITION INDICATION Page 7 of 8

Report Date: 06/20/24

SSES MANUAL Manual Name:

TSBl

"*anual

Title:

TECHNICAL SPECIFICATION BASES UNIT 1 MANUAL TEXT 3.9.5 1

11/16/2016

Title:

REFUELING OPERATIONS CONTROL ROD OPERABILITY - REFUELING TEXT 3.9.6 2

11/16/2016

Title:

REFUELING OPERATIONS REACTOR PRESSURE VESSEL (RPV) WATER LEVEL TEXT 3.9.7 1

11/16/2016

Title:

REFUELING OPERATIONS RESIDUAL HEAT REMOVAL (RHR)

- HIGH WATER LEVEL TEXT 3.9.8 1

11/16/2016

Title:

REFUELING OPERATIONS RESIDUAL HEAT REMOVAL (RHR) -

LOW WATER LEVEL TEXT 3.10.1 2

03/05/2019

Title:

SPECIAL OPERATIONS INSERVICE LEAK AND HYDROSTATIC TESTING OPERATION

-~XT 3.10. 2 1

11/16/2016

Title:

SPECIAL OPERATIONS REACTOR MODE SWITCH INTERLOCK TESTING TEXT 3.10.3 1

11/16/2016

Title:

SPECIAL OPERATIONS SINGLE CONTROL ROD WITHDRAWAL - HOT SHUTDOWN TEXT 3.10.4 1

11/16/2016

Title:

SPECIAL OPERATIONS SINGLE CONTROL ROD WITHDRAWAL -

COLD SHUTDOWN TEXT 3.10.5 1

11/16/2016

Title:

SPECIAL OPERATIONS SINGLE CONTROL ROD DRIVE (CRD) REMOVAL -

REFUELING TEXT 3.10.6 1

11/16/2016

Title:

SPECIAL OPERATIONS MULTIPLE CONTROL ROD WITHDRAWAL - REFUELING TEXT 3.10.7 2

03/29/2022

Title:

SPECIAL OPERATIONS CONTROL ROD TESTING - OPERATING TEXT 3.10.8 4

04/04/2024

Title:

SPECIAL OPERATIONS SHUTDOWN MARGIN (SDM) TEST - REFUELING Page 8 of 8

Report Date: 06/20/24

Rev. 4 Primary Containment Oxygen Concentration B 3.6.3.3 B 3.6 CONTAINMENT SYSTEMS B 3.6.3.3 Primary Containment Oxygen Concentration BASES BACKGROUND APPLICABLE SAFETY ANALYSES LCO APPLICABILITY All nuclear reactors must be designer" to withstand events that generate hydrogen either due to the zirconiurr -netal water reaction in the core or due to radiolysis. The pnmary method to control hydrogen is to inert the primary containment. With the pnma,y containment inert, that is, oxygen concentration< 4.0 volume percent ! *'o), a combustible mixture cannot be present in the primary containment ft> any hydrogen concentration. An event that rapidly generates hydroge=-- from zirconium metal water reaction will result in excessive hydrogen in p: -nary containment, but oxygen concentration will remain < 4.0 v/o ar,o no combustion can occur. This LCO ensures that oxygen concentra.."'Orl does not exceed 4.0 v/o during operation in the applicable cond~

The Reference 1 calculations aSSUfTlllt that the primary containment is inerted when a Design Basis Acaaen loss of coolant accident occurs.

Thus, the hydrogen assumed to be r ased to the primary containment as a result of metal water reaction in the reactor core will not produce combustible gas mixtures in the pnmary containment.

Primary containment oxygen concer-.rtion satisfies Criterion 2 of the NRC Policy Statement. (Ref 2)

The primary containment oxygen roncentration is maintained < 4.0 v/o to ensure that an event that produces a --y amount of hydrogen does not result in a combustible mixture inside pnrN 'I containment.

The primary containment oxygen corcentration must be within the specified limit when primary containment is inerted. The primary containment must be inert in MODE and 2, since this is the condition with the highest probability of an event thct could produce hydrogen.

SUSQUEHANNA - UNIT 1 3.6-81

BASES ACTIONS SURVEILLANC REQUIREMEN S REFERENCES A.1 Rev. 4 Primary Containment Oxygen Concentration B 3.6.3.3 If oxygen concentration is z 4.0 v/o while operating in MODE 1 or 2, oxygen concentration must be restored to < 4.0 v/o within 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br />. The 72 hour8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> Completion Time is allowed when oxygen concentration is z 4.0 v/o because of the low probability and long duration of an event that would generate significant amounts of hydrogen occurring during this period.

A Note permits the use of the provisions of LCO 3.0.4.c. This allowance permits entry into the applicable MODE(S) while relying on the ACTIONS.

This allowance is acceptable because inerting the primary containment prevents containment access without an appropriate breathing apparatus.

Therefore, the primary containment is inerted as late as possible in the plant startup, after entering Modes 1 and 2, and de-inerted as soon as possible in the plant shutdown. It is acceptable to intentionally enter Required Action A.1 prior to a shutdown in order to begin de-inerting the primary containment prior to exiting the Applicability.

B.1 If oxygen concentration cannot be restored to within limits within the required Completion Time, the plant must be brought to a MODE in which the LCO does not apply. To achieve this status, power must be reduced to MODE 3 within 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br />. The 12 hour1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> Completion Time is reasonable, based on operating experience, to reduce reactor power from full power conditions in an orderly manner and without challenging plant systems.

SR 3.6.3.3.1 The primary containment must be determined to be inert by verifying that oxygen concentration is < 4.0 v/o. The Surveillance Frequency is controlled under the Surveillance Frequency Control Program.

1.

FSAR, Section 6.2.5.

2.

Final Policy Statement on Technical Specifications Improvements July 22, 1993 (58 FR 39132).

SUSQUEHANNA - UNIT 1 3.6-82

BASES Rev. 4 Primary Containment Oxygen Cof'Centration 8 3.6.3.3 THIS PAGE INTENTIONALLY LEFT BLANK SUSQUEHANNA - UNIT 1 3.6-83