Text

Proposed Tech Specs 3.6.2.2 Re Spray Additive Sys
	ML20134K555
Person / Time
Site:	Farley
Issue date:	11/15/1996
From:	; SOUTHERN NUCLEAR OPERATING CO.
To:	;
Shared Package
ML20134K554	List: ML20134K550; ML20134K555;
References
	NUDOCS 9611190193
	Download: ML20134K555 (35)
	v • d • e

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Enclosure 3 Joseph M. Farley Nuclear Plant Unit 1 j Elimination of Containment Spray Additive System i Technical Specification Changes j l

{ Paae Chance Instructions l l

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LIMITING CONDITIONS FOR OPERATION AND SURVEILLANCE REQUIREMENTS i

SECTION PAGE 3/4.5 EMERGENCY CORE COOLING SYSTEMS (ECCS) 3/4.5.1 ACCUMULATORS......................... ............... 3/4 5-1 3/4.5.2 ECCS SUBSYSTEMS - T avg 2 350*F....................... 3/4 5-3 3/4.5.3 ECCS SUBSYSTEMS - Tavg < 3 5 0

F . . . . . . . . . . . . . . . . . . . . . . . 3 / 4 5 -7 1

3/4.5.4 BORON INJECTION SYSTEM I l

l Boron Injection Tank....... ......................... 3/4 5-9 '

Heat Tracing......................................... 3/4 5-10 l

3/4.5.5 REFUELING WATER STORAGE TANK......................... 3/4 5-11 3/4.5.6 ECCS RECIRCULATION FLUID pH CONTROL SYSTEM . . . . . . . ... 3/4 5-12 l l

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FARLEY-UNIT 1 VI AMENDMENT NO. l

'4 INDEX LIMITING CONDITIONS FOR OPERATION AND SURVEILLANCE REQUIREMENTS SECTION PAGE 3/4.6 CONTAINMENT SYSTEMS 3/4.6.1 PRIMARY CONTAINMENT ,

Containment Integrity................................ 3/4 6-1 Containment Leakage............ ..................... 3/4 6-2 Containment Air Locks................................ 3/4 6-4 Internal Pressure.................................... 3/4 6-6 Air Temperature...................................... 3/4 6-7 Containment Structural Integrity..................... 3/4 6-8 Containment Ventilation System....................... 3/4 6-10 3/4.6.2 DEPRESSURIZATION AND COOLING SYSTEMS ,

Containment Spray System............................. 3/4 6-11 Spray *.dditice Syster (Deleted)...................... 3/4 6-12 l Containment Cooling System........................... 3/4 6-13 3/4.6.3 CONTAINMENT ISOLATION VALVES......................... 3/4 6-14 3/4.6.4 COMBUSTIBLE GAS CONTROL

}

j Hydrogen Analyzers................................... 3/4 6-19 Electric Hydrogen Recombiners........................ 3/4 6-20 Reactor Cavity Hydrogen Dilution System.............. 3/4 6-21 Hydrogen Mixing System............................... 3/4 6-22 l

l FARLEY UNIT 1 VII AMENDMENT NO. l

EMERGENCY CORE COOLING SYSTEMS 3/4.5.6 ECCS RECIRCULATION FLUID DH CONTROL SYSTEM LIMITING CONDITION FOR OPERATION i

3.5.6 The recirculation fluid pH control system shall be OPERABLE with a ,

total of between 10,000 pounds (185 cubic feet) and 12,900 pounds (215 cubic feet) of trisodium phosphate compound as Na,PO, + 12H,0 . WlaOH (or appropriate weights / volumes for equivalent compounds) available in the storage baskets in the containment building.

APPLICABILITY: MODES 1, 2, 3 and 4.

ACTION:

With the recirculation fluid pH control system INOPERABLE, restore the system to OPERABLE status within 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months or be in at least HOT STANDBY within the next 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months ; restore the recirculation fluid pH control system to OPERABLE status within the next 48 hours5.555556e-4 days 0.0133 hours 7.936508e-5 weeks 1.8264e-5 months or be in COLD SHUTDOWN within the following 30 hours3.472222e-4 days 0.00833 hours 4.960317e-5 weeks 1.1415e-5 months .

l SURVEILLANCE REQUIREMENTS 4.5.6 During each refueling outage the recirculation fluid pH control system y

shall be demonstrated OPERABLE by performing a visual inspection to verify that the:

a. Three (3) storage baskets are in place,

b. Baskets have maintained their integrity,

c. Baskets are filled with trisodium phosphate compound such that the level is between the indicated fill marks on the baskets.

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FARLEY-UNIT 1 3/4 5-12 AMENDMENT NO. l

CONTAINMENT SYSTEMS SPRAY ADDITIVE SYSTEM SPECIFICATION 3.6.2.2 DELETED.

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FARLEY-UNIT 1 3/4 6-12 AMENDMENT NO. l

REACTTVITY CONTROL SYSTEMS BASES

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] BORATION SYSTEMS (Continued)

MARGIN from expected operating conditions of 1.77% delta k/k after xenon decay and cooldown to 200*F. The maximum expected boration capability requirement occurs at EOL from full power equilibrium xenon conditions and requires 11,336 gallons of 7000 ppm borated water from the boric acid storage tanks or 44,826 gallons of 2300 ppm borated water from the refueling water storage tank.

With the RCS temperature below 200*F, one injection system is acceptable 4 without single failure consideration on the basis of the stable reactivity condition of the reactor and the additional restrictions prohibiting CORE ALTERATIONS and positive reactivity changes in the event the single injection system becomes inoperable.

The limitation for a maximum of one centrifugal charging pump to be OPERABLE and the Surveillance Requirement to verify all charging pumps except the required OPERABLE pump to be inoperable below 180*F provides assurance that a mass addition pressure transient can be relieved by the operation of a single RHR relief valve.

The boron capability required below 200*F is sufficient to provide a SHUTDOWN MARGIN of 1% delta k/k after xenon decay and cooldown from 200*F to 140*F. This condition requires either 2,000 gallons of 7000 ppm berated water from the boric acid storage tanks or 7,750 gallons of 2300 ppn borated water from the refueling water storage tank. 1 1

l The contained water volume limits include allowance for water not available because of discharge line location and other physical characteristics.

The limits on contained water volume and boron concentration of the RWST also ensure a pH value of between 7.5 and 10.5 for the solution recirculated l within containment after a LOCA. This pH band minimizes the evolution of iodine and minimizes the effect of chloride and caustic stress corrosion on mechanical systems and components.

The OPERABILITY of one boron injection system during REFUELING ensures that this system is available for reactivity control while in MODE 6.

3/4.1.3 MOVABLE CONTROL ASSEMBLIES The specifications of this section ensure that (1) acceptable power distribution limits are maintained, (2) the minimum SHUTDOWN MARGIN is maintained, and (3) limit the potential effects of rod misalignment on associated accident analyses. OPERABILITY of the control rod position indicators is required to determine control rod positions and thereby ensure compliance with the control rod alignment and insertion limits.

FARLEY-UNIT 1 B 3/4 1-3 AMENDMENT NO. l

- . . . ._~ . - - - . - ..- .- -- - - --

EMERGENCY CORE COOLING SYSTEMS BASES The limits on contained water volume and boron concentration of the RWST also ensure a pH value of between 7.5 and 10.5 for the solution recirculated {

within containment after a LOCA. This pH band minimizes the evolution of iodine and minimizes the effect of chloride and caustic stress corrosion on ;

mechanical systems and components.

3/4.5.6 ECCS RECIRCULATION FLUID DH CONTROL SYSTEft The OPERABILITY of the ECCS recirculation fluid pH control system ensures that there is a total of between 10,000 pounds (185 cubic feet) and 12,900 pounds (215 cubic feet) of trisodium phosphate compound as Na PO, 3

+

12H,0 . %NaOH (or appropriate weights / volumes for equivalent compounds) available in the storage baskets in containment to raise the pH of the recirculating solution into the range of 7.5 to 10.5. This pH band minimizes the evolution of iodine and minimizes the effect of chloride and caustic j stress corrosion on machanical systems and components. The verification that j the storage baskets contain the required amount of trisodium phosphate ,

compound Icvel is accomplished by verifying that the trisodium phosphate l

compound level is between the indicated fill marks on the baskets. An equivalent amount of trisodium phosphate compound with a different chemical formula may be used. When equivalent compounds are used, the allowable

weights / volumes may be different; however, the equivalent amount of trisodium phosphate compound must raise the pH of the recirculating solution into the range of 7.5 to 10.5.

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I FARLEY-UNIT 1 B 3/4 5-3 AMENDMENT NO. l

CONTAINMENT SYSTEMS BASES )

3/4.6.2 DEPRESSURIZATION AND COOLING SYSTEMS 3/4.6.2.1 CONTAINMENT SPRAY SYSTEM The OPERABILITY of the containment spray system ensures that containment depressurization and cooling capability will be available in the event of a LOCA. The pressure reduction and resultant lower containment leakage rate are consistent with the assumptions used in the accident analyses. j i

The containment spray system and the containment cooling system are redundant to each other in providing post accident cooling of the containment atmosphere. However, the containment spray system also provides a mechanism for removing iodine from the contai'nment atmosphere and therefore the-time requirements for restoring an inoperable spray system to OPERABLE status have ,

been maintained consistent with that assigned other inoperable ESF equipment.

3/4.6.2.2 SPRAY ADDITIVE SYSTEM 4

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THIS SPECIFICATION DELETED.

3/4.6.2.3 CONTAINMENT COOLING SYSTEM The OPERABILITY of the containment cooling system ensures that 1) the containment air temperature will be maintained within limits during normal operation, and 2) adequate heat removal capacity is available when operated in conjunction with the containment spray systems during post-LOCA conditions.

The containment cooling system and the containment spray system are redundant to each other in providing post accident cooling of the containment atmosphere. As a result of this redundancy in cooling capability, the allowable out of service time requirements for the containment cooling system have been appropriately adjusted. However, the allowable out of service time requirements for the containment spray system have been maintained consistent with that assigned other inoperable ESF equipment since the containment spray system also provides a mechanism for removing iodine from the containment atmosphere.

FARLEY-UNIT 1 B 3/4 6-3 AMENDMENT NO. l

Enclosure 4 Joseph M. Farley Nuclear Plant Unit 2 Elimination of Containment Spray Additive System Technical Specification Changes 1 Pags Change Instructions 4

) Remove Page Replace Page VI VI

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LIMITING CONDITIONS FOR OPERATION AND SURVEILLANCE REQUIREMENTS l l

SECTION PAGE 114.5 EMERGENCY CORE COOLING SYSTEMS 3.4.5.1 ACCUMULATORS............................................ 3/4 5-1 3/4.5.2 ECCS SUBSYSTEMS - Tavg 2350*F..........................3/45-3 3/4.5.3 ECCS SUBSYSTEMS - Tavg < 350*F.......................... 3/4 5-7 3/4.5.4 BORON INJECTION SYSTEM Boron Injection Tank.................................... 3/4 5-9 Heat Tracing............................................ 3/4 5-10 3/4.5.5 REFUELING WATER STORAGE TANK . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 / 4 5-11 3/4.5.6 ECCS RECIRCULATION FLUID pH CONTROL SYSTEM .............. 3/4 5-12 l I

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FARLEY-UNIT 2 VI AMENDMENT NO. l

. INDEX LIMITING CONDITIONS FOR OPERATION AND SURVEILLANCE REQUIREMENTS

. I i SECTION PAGE 3/4.6 CONTAINKENT SYSTEMS 3/4.6.1 PRIMAEY CONTAINMENT Containment Integrity ................................... 3/4 6-1 Containment Leakage ..................................... 3/4 6-2 containment Air Locks ................................... 3/4 6-4 Internal Pressure ....................................... 3/4 6-6 Air Temperature ......................................... 3/4 6-7 Containment Structural Integrity ........................ 3/4 6-8 Containment Ventilation System .......................... 3/4 6-10 3/4.6.2 DEPRESSURIZATION AND COOLING SYSTEMS Cont ainment Spray Sys tem . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 / 4 6-11 C;rcy ?.dditive Cycter (Deleted)........................... 3/4 6-12 l Containment Cooling Syst em . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 / 4 6-13 3/4.6.3 CONTAINMENT ISOLATION VALVES ............................ 3/4 6-14 3/4.6.4 COMBUSTIBLE GAS CONTROL Hydrogen Analyzers ...................................... 3/4 6-19 Electric Hydrogen Recombiners ........................... 3/4 6-20 Reactor Cavity Hydrogen Dilution System ................. 3/4 6-21 .

l Hydrogen Mixing System .................................. 3/4 6-22 )

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FARLEY-UNIT 2 VII AMENDMENT NO. l

- EMERGENCY CCRE CCOLING SYSTEMS 3/4.5.6 ECCS RECIRCULATION FLUID DH CONTROL SYSTEM LIMITING CONDITION FOR OPERATION i

3.5.6 The recirculation fluid pH control system shall be OPERABLE with a l total of between 10,000 pounds (185 cubic feet) and 12,900 pounds (215 I cubic feet) of trisodium phosphate compound as Na,PO, . 12H,0 . %NaOH l (or appropriate weights / volumes for equivalent compounds) available in the storage baskets in the containment building.

APPLICABILITY: MODES 1, 2, 3 and 4.

ACTION:

With the recirculation fluid pH control system INOPERABLE, restore the system to OPERABLE status within 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months or be in at least HOT STANDBY within the next 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months ; restore the recirculation fluid pH cor. trol system to OPERABLE status within the next 48 hours5.555556e-4 days 0.0133 hours 7.936508e-5 weeks 1.8264e-5 months or be in COLD SHUTTXWCi within the following 30 hours3.472222e-4 days 0.00833 hours 4.960317e-5 weeks 1.1415e-5 months .

l SURVEILLANCE REQUIREMENTS 4.5.6 During each refueling outage the recirculation fluid pH control system

]

shall be demonstrated OPERABLE by performing a visual inspection to l verify that the:

a. Three (3) storage baskets are in place,

b. Baskets have maintained their integrity,

c. Baskets are filled with trisodium phosphate compound such that the level is between the indicated fill marks on the baskets. ,

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FARLEY-UNIT 2 3/4 5-12 AMENDMEITT NO. l

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- CONTATNMENT SYSTEMS

, 1 SPPAY ADDITIVE SYSTEM SPECIFICATION 3.6.2.2 DELETED.

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FARLEY-UNIT 2 3/4 6-12 AMENDMENT NO. l

s TABLE 3.8-2 (Continusd)

MOTOR OPERATED VALVES THERMAL OVERLOAD PROTECTION DEVICES

VALVE NUMBER FUNCTION BYPASS DEVICE MOV-8106 Charging Pump Mini Flow Isolation No MOV-8826A Containment Spray Suction from No

, containment Sump MOV-8826B Containment Spray Suction from No Containment Sump MOV-8827A Containment Spray Suction from No Containment Sump MOV-8827B Containment Spray Suction from No Containment Sump MOV-8817A Containment Spray Suction from RWST No MOV-8817B Containment Spray Suction from RWST No l

MOV-8820A Discharge to Spray Ring No MOV-8820B Discharge to Spray Ring No MOV-8803A BIT Inlet No MOV-8803B BIT Inlet No MOV-8801A BIT Outlet No MOV-8801B BIT Outlet No MOV-8886 Charging Pump Discharge to Hot Leg No MOV-8884 Charging Pump Discharge to Hot Leg No MOV-8885 Charging Pump Discharge to Cold Leg No MOV-8808A SIS Accumulator Outlet No MOV-8808B SIS Accumulator Outlet No MOV-8808C SIS Accumulator Outlet No MOV-8811A RHR Suction from Containment Sump No MOV-8811B RHR Suction from Containment Sump No l MOV-8812A RHR Suction from Containment Sump No MOV-8812B RHR Suction from Containment Sump No MOV-8809A RHR Suction from RWST No MOV-8809B RHR Suction from RWST No MOV-8887A RHR Discharge Crossconnect No MOV-8887B RHR Discharge Crossconnect No FCV-602B RHR Pump Mini Flow No FCV-602A RHR Pump Mini Flow No MOV-8889 RHR Discharge to Hot Leg No MOV-8888A RHR Discharge to Cold Leg No MOV-8888B RHR Discharge to Cold Leg No MOV-8706A RHR Discharge to Charging Pump Suction No MOV-8706B RHR Discharge to Charging Pump Suction No MOV-8112 Seal Water Return Containment Isolation No MOV-8100 Seal Water Return Containment Isolation No FARLEY-UNIT 2 3/4 8-31 AMENDMENT NO. l

~

REACTIVITY CONTROL SYSTEMS

, BASES I

BORATION SYSTEMS (Continued)

MARGIN from expected operating conditions of 1.77% delta k/k after xenon decay and cooldown to 200*F. The maximum expected boration capability requirement occurs at EOL from full power equilibrium xenon conditions and requires 11,336 gallons of 7000 ppm borated water from the boric acid storage tanks or 44,826 gallons of 2300 ppm borated water from the refueling water storage tank.

With the RCS temperature below 200*F, one injection system is acceptable without single failure consideration on the basis of the stable reactivity condition of the reactor and the additional restrictions prohibiting CORE ALTERATIONS and positive reactivity changes in the event the single injection system becomes inoperable.

The limitation for a maximum of one centrifugal charging pump to be OPERABLE and the Surveillance Requirement to verify all charging pumps except the required OPERABLE pump to be inoperable below 180*F provides assurance that a mass addition pressure transient can be relieved by the operation of a single RHR relief valve.

The boron capability required below 200*F is sufficient to provide a SHUTDOWN MARGIN of 1% delta k/k atter xenon decay and cooldown from 200*F to 140*F. This condition requires either 2,000 gallons of 7000 ppm borated water from the boric acid storage tanks or 7,750 gallons of 2300 ppm borated water from the refueling water storage tank.

The contained water volume limits include allowance for water not available because of discharge line location and cther physical characteristics.

1 The limits on contained water volume and boron concentration of the RWST !

also ensure a pH value of between 7.5 and 10.5 for the solution recirculated l within containment after a LOCA. This pH band minimizes the evolution of iodine and minimizes the effect of chloride and caustic stress corrosion on mechanical systems and components.

The OPERABILITY of one boron injection system during REFUELING ensures ,

that this system is available for reactivity control while in MODE 6. f 3/4.1.3 MOVABLE CONTROL ASSEMBLIES The specifications of this section ensure that (1) acceptable power distribution limits are maintained, (2) the minimum SHUTDOWN MARGIN is maintained, and (3) limit the potential effects of rod misalignment on l associated accident analyses. OPERABILITY of the control rod position indicators is required to determine control rod positions and thereby ensure l compliance with the control rod alignment and insertion limits.

l FARLEY-UNIT 2 B 3/4 1-3 AMENDMENT NO. l u

EMERGENCY CORE COOLING SYSTEMS BASES The limits on contained water volume and boron concentration of the RWST also ensure a pH value of between 7.5 and 10.5 for the solution recirculated l within containment after a LOCA. This pH band minimizes the evolution of iodine and minimizes the effect of chloride and caustic stress corrosion on mechanical systems and components.

3/4.5.6 ECCS RECIRCULATION FLUID DH CONTROL SYSTEM The OPERABILITY of the ECCS recirculation fluid pH control system ensures that there is a total of between 10,000 pounds (185 cubic feet) and 12,900 pounds (215 cubic feet) of trisodium phosphate compound as Na PO, 3

+

12H/) . KNaOH (or appropriate weights / volumes for equivalent compounds) available in the storage baskets in containment to raise the pH of the recirculating solution into the range of 7.5 to 10.5. This pH band minimizes the evolution of iodine and minimizes the effect of chloride and caustic stress corrosion on mechanical systems and components. The verification that the storage baskets contain the required amount of trisodium phosphate compound level is accomplished by verifying that the trisodium phosphate compound level is between the indicated fill marks on the baskets. An equivalent amount of trisodium phosphate compound with a different chemical formula may be used. When equivalent compounds are used, the allowable weights / volumes may be different; however, the equivalent amount of trisodium phosphate compound must raise the pH of the recirculating solution into the range of 7.5 to 10.5.

FARLEY-UNIT 2 B 3/4 5-3 AMENDMENT NO. l

CONTAINMENT SYSTEMS l

l BASES 3/4.6.2 DEPRESSURIZhTION AND COOLING SYSTEMS 3/4.6.2.1 CONTAINMENT SPRAY SYSTEM j The OPERABILITY of the containment spray system ensures that containment l depressurization and cooling capability will be available in the event of a I LOCA. The pressure reduction and resultant lower containment leakage rate ati consistent with the assumptions used in the accident analyses.

The containment spray system and the containment cooling system are i redundant to each other in providing post accident cooling of the containment atmosphere. However, the containment spray system also provides a mechanism for removing iodine from the containment atmosphere and therefore the time requirements for restoring an inoperable spray system to OPERABLE status have

been maintained consistent with the assigned other inoperable ESF equipment. ;

i 3/4.6.2.2 SPRAY ADDITIVE SYSTEM i

THIS SPECIFICATION DELETED. l l

3/4.6.2.3 CONTAINMENT COOLING SYSTEM J The OPERABILITY of the containment cooling system ensures that 1) the containment air temperature will be maintained within limits during normal operation, and 2) adequate heat removal capacity is available when operated in conjunction with the containment spray systems during post-LOCA conditions. l The containment cooling system and the containment spray system are ,

redundant to each other in providing post accident cooling of the containment I atmosphere. As a result of this redundancy in cooling capability, the allowable out of service time requirements for the containment cooling system have been appropriately adjusted. However, the allo;.'able out of service time requirements for the containment spray system have been maintained consistent with that assigned other inoperable ESF equipment since the containment spray system also provides a mechanism for removing iodine from the containment

, atmosphere.

a FARLEY-UNIT 2 B 3/4 6-3 AMENDMENT NO. l

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Enclosure 5 I Joseph M. Farley Nuclear Plant Units 1 & 2 Elimination of Containment Spray Additive System Technical Specification Changes i

Marked-Up Pages l

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1 LIMITING CONDITIONS FOR CPERATION AND SURVIILLANCE REQUIREMENTS 4 SECTION Egg I

j 3 /4.5 EMERGENCY CORE CLCLING SYSTEMS (ECCS) i j 3/4.5.1 ACCUMULATORS......................................... 3/4 5-1 5 3/4.5.2 BCCS SUBSYSTEMS - T avg 2 350*F....................... 3/4 5-3 i 3/4.5.3 BCCS SUBSYSTEMS - Tavg < 350*F....................... 3/4 5-7 l

l 3/4.5.4 BORON INJECTION SYSTEM t

l Boron Injection Tank................................. 3/4 5-9 i

j Beat Tracing......................................... 3/4 5-10 4 3/4.5.5 REFUELING MATER STORAGE TAME. . . . . . . . . . . . . . . . . . . . . . . . . 3/4 5-11 i

3/45,6, eccs REclacuLxt,cN FLO D pH C oNTR4. SYS TEM... N+ - 12, l l

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l FARLEY-UNIT 1 VI AMENDMENT NO. 26 i

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IHDEX LIMITING CONDITIONS FOR CPERATION AND SURVEILLANCE REQUIREMENTS SECTION gg[g l .

3 $/4.6 CONTAll0MNT SYSTEMS

3/4.6.1 PRIMARY CONTAINMENT Containment Integrity................................ 3/4 6-1

, containment Leakage.................................. 3/4 6-2 containment Air Locks................................ 3/4 6-4 i

j Internal Pressure.................................... 3/4 6-6 Air Temperature...................................... 3/4 6-7 1 Containment Structural Integrity..................... 3/4 6-8 !

! Containment Ventilation System....................... 3/4 6-10 l l

3/4.6.2 DEPRESSURISATION AND COOLING SYSTEMS

Containment Spray System............................. 3/4 6-11 1

";=y .'.ffiti : "yct r................................ 0/0 ', 12 l containment Cooling System........................... 3/4 6-13 3/4.6.3 CONTAINMENT ISOLATION VALVES......................... 3/4 6-14 3/4.6.4 COMBUSTIELE GAS CONTROL Hydrogen Analyzers................................... 3/4 6-19 Electric Hydrogen Recombiners........................ 3/4 6-20 Reactor Cavity Hydrogen Dilution System. . . . . . . . . . . . . . 3/4 6-21 Hydrogen Mixing System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 /4 6-2 2 FARLEY-UNIT 1 VII AMENDMENT NO. 26

s

_ EMERGENCY CORE COOLING SYSTEMS

^

3/4.5.6 ECCS RECIRCULATION FLUID DH CONTROL SYSTEM LIMITING CONDITION FOR OPERATION 3.5.6 The recirculation fluid pH control system shall be OPERABLE with a total of between 10,000 pounds (185 cubic feet) and 12,900 pounds (215 cubic feet) of trisodium phosphate compound as Na PO, 3

. 12H,0 + MNaOH (or appropriate weights / volumes for equivalent compounds) available in the storage baskets in the containment building.

APPLICABILITY: MODES 1, 2, 3 and 4.

ACTION:

With the recirculation fluid pH control system INOPERABLE, restore the system to OPERABLE status within 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months or be in at least HOT STANDBY within the next 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months ; restore the recirculation fluid pH control system to OPERABLE status within the next 48 hours5.555556e-4 days 0.0133 hours 7.936508e-5 weeks 1.8264e-5 months or be in COLD SHUTDOWN within the following 30 hours3.472222e-4 days 0.00833 hours 4.960317e-5 weeks 1.1415e-5 months .

SURVEILLANCE REQUIREMENTS 4.5.6 During each refueling outage the recirculation fluid pH control system shall be demonstrated OPERABLE by perfor. Ting a visual inspection to verify that the:

a. Three (3) storage baskets are in place,

b. Baskets have maintained their integrity,

c. Baskets are fille 3 with trisodium phosphate compound such that the level is between the indicated fill marks on the baskets.

FARLEY-UNIT 1 3/4 5-12 AMENDMENT NO. l

COIIIAIMMENT hist 361 1 f

SPRAY ADDITIVE SYSTEM Ce)t TIM I*l.p*7.1 T)(kOk0 #

j- 4 2 - l

, ],ANATape wwusv&TAque rwes ursmATION - ( {

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l 3.6 .2 The spray additive system shall be OPERABLE with:

, 1 l A spray additive tank containing a volume of between 3600 4000 !

gallons of between 30 and 32 percent by weight NacN solut , and

b. spray additive eductors each capable of adding Na solution I the chemical additive tank to a containment spr system pump f1 .

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! APPLIC&BILITY: 58 1, 2, 3 and 4.

&EEEE8

with the spray additive stem inoperable, restore t system to OPERABLE

status withia 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months or in at least 50f SthED thin the nest 4 hours4.62963e-5 days 0.00111 hours 6.613757e-6 weeks 1.522e-6 months ;

} restore the spray additive en to OPER&BLE stat within the next 48 hours5.555556e-4 days 0.0133 hours 7.936508e-5 weeks 1.8264e-5 months j or be la COLD SEUTDOWN withis he following 30 re.

SURVEILLANCERByIREMENTS l

l 4.6.2.2 The spray additive syst sha be demonstrated OPERABLE:

j a. At least once per 31 days verifying that each valve (manual, j power operated or automa c) the flow path that is not locked, sealed, or otherwise o red i ition, is in its correct position.

h. At least once per months by:

1. Verifyi he contained solution lume in the tank, and

2. Verif ag the concentration of the solution by chemical ana sis.

c. At les once per 18 months during shutdoun, verifying that each tomatic valve in the flow path actuates t its correct pos ton on a Phase 3 signal.

d. least once per 5 years by verifying each solution ow rate from drain valve 1CS-V-8834: j

1. Via the additive tank

2. Via 1CS-MOV-8836A

3. Via 1CS-MOV-88365 FARLEY-UNIT 1 3/4 6-12 AMENDMENT NO. 26

p u*aceeccmmonwwfe% ;

, BASES . . .. ..

BORATION SYSTEMS (Continued)

MARGIN from expected operating conditions of 1.77% delta k/k after menon decay and cooldown to 200'F. The maximum expected boration capability requirement

! occurs at BOL from full power equilibrium menon conditions and requires 11,336 i gallons of 7000 ppa borated water from the boric acid storage tanks or 44,826

{'

q gallons of 2300 ppe borated water from the refueling water storage tank. y#

j With the RCS temperature below 200*F, one injection system is acceptable without single failure consideration on the basis of the stable reactivity

! condition of the reactor and the additional restrictions prohibiting CORE

! ALTERATIONS and positive reactivity changes in the' event the single injection l system becomes inoperable.

The limitation for a maximum of one centrifugal charging pump to be l

OPERABLE and the Surveillance Requirement to verify all charging pumpe except i the required OPERAELE pump to be inoperable below 180'F provides assurance i that a mass addition pressure transient can be relieved by the operation of a j single RER relief valve.

i

! The boron capability required below 200*F is sufficient to provide a SHUTDONN MARGIN of it delta k/k after menon decay and.cooldown from 200*F to i 140'F. This condition requires either 2,000 gallons of 7000 ppm borated water

} from the boric acid storage tanks or 7,750 gallons of 2300 ppm borated water f j from the refueling water storage tank. #

t The contained water volume limits include allowance for water not available because of discharge line location and other physical characteristics. p g_

! The limits on contained water volume and jboron concentration of the RWST also ensure a pH value of between 0.0 4 11.0 for the solution recirculated l within containment after a LOCA. This pH band minimises the evolution of

iodine and minimizes the effect of chloride and caustic stress corrosion on mechanical systems and components.

l The OPERASILITY of one boron injection system during REFUELING ensures j that this system is available for reactivity control while in MODE 6.

4 i

i 3/4.1.3 MDpar.m _ .- Aggwumr.IES l

The specifications of this section ensure that (1) acceptable power f distribution limits are maintained, (2) the minimum SHUTDOWN MARGIN is i

I maintained, and (3) limit the potential effects of rod misalignment on f

associated accident analyses. OPERABILITY of the control rod position i indicators is required to determine control rod positions and thereby ensure

compliance with the control rod alignment and insertion limits.

3 I

\

I i

8 3/4 1-3 AMENDMENT NO. 68 I FARLEY-UNIT 1 i

4 1

. _ - . . _ _ _ . . _ . _ _ . _ _ . _ - _ _ . . _ _ _ _ . . _ _ . _ _ _ . . _ . . _ . . _ . . _ . _ ._. _.m____-

sGREAGENCY CORE COOLING SYSTEMS

~

RAssa 4 -

7,5 and 10.5%

The limits on contained water volume and boron concentration of the RWST also ensure a pH value of between 0$ ?..-4 11r0 for the solution recirculated l l

> within containment after a LOCA. This pH band minimises the evolution of

iodine and minimizes the effect of chloride and caustic stress corrosion on mechanical systems and components.

1 J

t l Ad d .In sert " A" l 4

E 4

i i

i B 3/4 5-3 AMENDMENT NO. 26 FARLEY-UNIT 1

1 l

t

- INSERT "A" 3/4 5.6 ECCS RECIRCULATION FLUID oH CONTROL SYSTEM

! The OPERABILfIY of the ECCS recirculation fluid pH control system msurcs that there is a total j of between 10,000 pounds (185 cubic feet) and 12,900 pounds (215 cubic feet) of trisodium phosphate 3 compound as Na3PO4 a 12H2 O = %NaOH (or appropriate weights / volumes for equivalent compounds) j available in the storage baskets in contamment to raise the pH of the recirculating solution into the range of 7.5 to 10.5. His pH band nummizes the evolution ofiodine and muunuzes the effect of chloride and

caustic stress corrosion on mechanical systems and ww.erts. The verification that the storage baskets l 5 contain the required amount of tnsodium phosphate compound level is accomplished by wdfy4 that the i trisodium phosphate conipound level is betww the indicated fill marks on the baskets An equivalent amount of tnsodium phosphate -=>M with a differet chemical formula may be used. Whm equivalent en==>Ma are used, the allowable weights / volumes may be different; however, the equivalent

! amount of tnsodium phosphate compound must raise the pH of the recirculatmg solution into the range of

7.5 to 10.5.

1 i l l

l l

i I

l

7

- mAOES 3/4.6.2 DEPRESSURI1ATION AND COOLING SYSTEMS

! 3/4.6.2.1 CONTAINMENT S? RAY SYSTEM l

The OPERABILITY of the containment spray system ensures that containment i depressurization and cooling capability will be available in the event of a l LocA. The pressure reduction and resultant lower containment leakage rate are l consistent with the assumptions used in the accident analyses.

! The containment spray system and the containment cooling system are

' redundant to each other in providing post accident cooling of the containment

atmosphere. However, the containment spray system also provides a mechanism for removing iodine from the containment atmosphere and therefore the time i requirements for restoring an inoperable spray system to OPERABLE status have i been maintained consistent with that assigned other inoperable ESF equipment.

I 3/4.6.2.2 SPRAY ADDITIVE SYSTEM i

I

ILITY of the spray additive system ensures that e t l NaOH is added containment spray in the event of a e limits on

! Neos volume and conc n ensure a pH value o n 8.5 and 11.0 for the solution recirculated wit tai er a IAck. This pH band

! minimises the evolution of iodine see the effect of chloride and

! caustic stress corrosion on anical syst components. The contained I water volume limit in s an allowance for water sable because of tank j discharge line on or other physical characteristics. ese assumptions i are consi with the iodine removal efficiency assumed in th dont ana . )

i j 3/4.6.2.3 CONTAINMENT COOLING SYSTEM 1

1 The OPERABILITY of the containment cooling system ensures that 1) the a containment air temperature will be maintained within limits during normal

! operation, and 2) adequate heat removal capacity is available when operated in i conjunction with the containment spray systems during post-LOCA conditions.

The containment cooling system and the containment spray system are j redundant to each other in providing post accident cooling of the containeont i atmosphere. As a result of this redundancy in cooling capability, the

allowable out of service time requirements for the containment cooling system

] have been appropriately adjusted. However, the allowable out of service time i requirements for the containment spray system have been maintained consistent l with that assigned other inoperable ESF equipment since the containment spray I system also provides a mechanism for removing iodine from the containment

, atmosphere.

4 4

4 iI 4

j FARLEY-UNIT 1 8 3/4 &3 AMENDMENT NO. 26 s

J f

J

LIMITING CONDITIONS FOR CPERATIOtt AND SURVIILIANCE REQUIREMENTS .

! . SECTIon FMI 4

3/4.5 EMERGENCY CDP.E COOLING SYSTEM i 3.4.5.1 ACCUMUIAT0RS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 / 4 5-1 3/4.5.2 ECCS SUBSYSTEMS - Tavg 2 350'F.......................... 3/4 5-3 i

3/4.5.3 ECCS SUBSYSTEMS - Tavg < 3 5 0 ' F . . . . . . . . . . . . . . . . . . . . . . . . . . 3 / 4 5 -V 3/4.5.4 BORON INJECTION SYSTEM

~

I Boron Injection Tank. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 /4 5-9 j Beat Tracing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 /4 5-10 l 3/4.5.5 REFUELING MhTER STORAGE TAME. . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 /4 5-11 i .

,w v + w i

3/t.5.6 Eccs REciae turioN v FLWD pH CMTROL $PSTEM. 3/y S-12, j u 4

4 d

l .-

l l

FARLEY-UNIT 2 VI

- . . . . . . - - . . . - . . . . . - . . . _ , .- . . ~ ~ .. -.. . . - - .-..

IE2hn

' LIMITING CONDITIONS POR CP2 RATION AND SURVEILLANCE REQUIREMENTS . ._

R&gg f

SECTION i- 3/4.6 CONTAIMMENT SYSTEMS i

3/4.6.1 PRIMARY CONTAINMENT containment Integrity ................................... 3/4 6-1 l Containment Leakage ..................................... 3/4 6-2 containment Air Locks ................................... 3/4 6-4 i

Internal Pressure ....................................... 3/4 6-6 I Air Temperature ......................................... 3/4 6-7

, f j containment Structural Integrity ........................ 3/4 6-8 i

i Containment Ventilation System . . . . . . . . . . . . . . . . . . . . . . . . . . 3 /4 6-10 3/4.6.2 DEPRESSURISATION AND COOLING SYSTEMS .

Containment Spray System ................................ 3/4 6-11 2; = ; n "'ti = ~;:T r ........ ....... .... ...

. ?l4 2-12 l Containment Cooling System .............................. 3/4 6-13 3/4.6.3 CONTAINMENT ISOLATION VALVES ............................ 3/4 6-14 3/4.6.4 COMBUSTIBLE GAS CONTROL Hydrogen Analysers ...................................... 3/4. 6-19 Electric Hydrogen Recombiners ........................... 3/4 6-20 Reactor Cavity Hydrogen Dilution System . . . . . . . . . . . . . . . . . 3/4 6-21 Hydrogen Mixing System .................................. 3/4 6-22 VII FARLEY-UNIT 2

., EMERGENCY CORE COOLING SYSTEMS 3/4.5.6 ECCS RECIRCULATION FLUID DH CONTROL SYSTEM LIMITING CONDITION FOR OPERATION 1

3.5.6 The recirculation fluid pH control system shall be OPERABLE with a ,

total of between 10,000 pounds (185 cubic feet) and 12,900 pounds (215 )

cubic feet) of trisodium phosphate compound as Na PO, + 12H,0 + WaOH 3

(or appropriate weights / volumes for equivalent compounds) available in the storage baskets in the containment building.

APPLICABILITY: MODES 1, 2, 3 and 4.

ACTION: )

With the recirculation fluid pH control system INOPERABLE, restore the system to OPERABLE status within 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months or be in at least HOT STANDBY within the next 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months ; restore the recirculation fluid pH control system to OPERABLE status within the next 48 hours5.555556e-4 days 0.0133 hours 7.936508e-5 weeks 1.8264e-5 months or be in COLD SHUTDOWN within the following 30 hours3.472222e-4 days 0.00833 hours 4.960317e-5 weeks 1.1415e-5 months .

1 SURVEILLANCE REQUIREMENTS l 1

4.5.6 During each refueling outage the recirculation fluid pH control system shall be demonstrated OPERABLE by performing a visual inspection to verify that ther

a. Three (3) storage baskets are in place,

b. Baskets have maintained their integrity,

c. Baskets are filled with trisodium phosphate compound such that the level is between the indicated fill marks on the baskets.

i 3/4 5-12 AMENDMENT NO. l FARLEY-UNIT 2

t

~

i' :

i . CONTAIMENT SYSTEMS SPRAY A00!TIVE SYSTEN

<T

$ptC C9 3'b'bl Dale .

! i,m,,,- , _ , , , _ .

- < \

! 3.6.

2 The spray additive system shall be OPERABLE with: '

i a. A spray additive tank containing a volume of between 3600 a j 4000 gallons of between 30 and 32 percent by weight Na0H s ution, ;

I

b. Two ray additive eductors each capable of adding solution free l the c l

ical additive tank to a containment spray sy pump flow. ;

l l

APPLICA8ILITY: 1, 2, 3 and 4. '

l ACTION:

With the spray additive s tem inoperable, restore s i status within 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months or in at least HDT ST witbtemtoOPERA8LE n the next 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months ;

restore the spray additive sy ".ee to OPERA 8LE s s within the next 48 hours5.555556e-4 days 0.0133 hours 7.936508e-5 weeks 1.8264e-5 months i or be in COLD SHUTDOWN within , following 30 rs.

4 l SURVEILLANCE REQUIREMENTS 4.6.2.2 The spray additive system s I demonstrated OPERA 8LE:

l a. At least once per 31 by verif that each valve (annual, power operated or au tic) in the ow path that is not locked, sealed, or otherwise ocured in positi , is in 'sts correct position.

b. At least once per son'ths ty:

l 1. Verifying contained solution volume in the tank, and l 2. Verifyi the com:entration of the Na0H ution by chemical anal s.

! c. At 1 once per 18 months during shutdown, by ver ing that eact.

au ic valve in the flow path actuates to its cor t position on

! aP se B signal.

6 j d. least once per 5 years by verifying each solution flow te

from drain valve 2CS-V-8834

l 1. Via the additive tank 12

2 gpa

2. Via 2CS-MOV-8836A 23 t 4 gpm

3. Via 2CS-MOV-88368 23 1 4 gpa w

I I

1 k

i FARLEY-UNIT 2 3/4 6-12 i

1 J

1 MOTOR OPERATED VALVES TEIRMAL OVERLQhD FRDTECTTON DIVICESs l.

l .

l j VALVE NUMERR FUNCTION BYFASS DEVICE l

i MOV-8106 Charging Pump Mini Flow Isolation No l MOV-8826A Containment Spray suction from No l Containment Sump Mov-88265 Contaiament spray Suction fresa No Contaiament Sump j

i NOV-8827A Containment Spray Suction from No Containment Sump l

MOV-88273 Containment Spray suction from No g

! Containment Sump

! MOV-8417A Containment spray Suetion from RNST No MOV-84175 Contaig===t Spray Suction from RNST No

. .;; 000 :I1:M r " M in 0. x 2,_ _, ' " ' t i= 5:

M

00;;; 2 2 z ^- - _

_Cir 0. _ r,__, ' tin - 5:

l

-Seab-l MDV-8820A Discharge to Spray Ring No MOV-88205 Discharge to spray Ring No

SIT Inlet- No NoV-8803A

! MOV-88035 BIT Inlet No MOV-8801A BIT Outlet No l No l MOV-8801s SIT Outlet MOV-8886 Charging Pump Discharge to Eot Leg 50 j

MOV-8884 Charging Pump Discharge to Not Leg No l

l MOV-8885 Charging Pump Discharge to cold Leg No l MOV-8808A SIS Accumulator Outlet No

] MOV-88083 SIS Accumulator Outlet No MOV-8808c SIS Accumulator outlet No i NOV-8811A RER Section from Containment Sump No MOV-88113 RER Section from containment Sump No

}

i MOV-8812A RER Section from containment Sump No MOV-88125 RER Section from contain= ant Sump No

! MOV-8809A RER Section from RNST No RER Suetion from RNST No

! MOV-88093 MOV-8887A RER Discharge Croesconnect No l

May-8887s RER Discharge Croseconnect No l No j FCV-6023 RER Fump Mini Flow RER Fump Mini Flow No l FCV-602A MOV-8889 RER Discharge to not Leg No

! Mov-8888A RER Discharge to cold Leg No MOV-88883 RER Discharge to Cold Leg No l

MOV-8706A RER Discharge to Charging Pump Suction No

{

l MOV-8706B RER Discharge to Charging Pump suction No j MOV-8112 seal Water Return Containment Isolation No Seal Water Return containment Isolation No j MOV-8100 I

I )

l l

3/4 8-31 AMENDMENT NO. 1 FARLEY-UNIT 2 b

1 i

j

l l - BASES . . . . .__ . - .. . .-__

i' .

! . BORATION SYSTEMA (Continued) l l

MARGIN free espected operating conditions of 1.77% delta k/k after menon decay j and cooldown to 200*F. The maximum expected boration espability regairement j occurs at 30L from full power equilibrium menon conditions and requires 11,336 i gallons of 7000 pga horated water from the boric acid storage tanks or 44,826 j gallons of 2300 ppm borated water from the refueling water storage tank. y l

i

! With the RCS temperature below 200*F, one injection system is acceptable l

without single failure consideration on the basis of the stable reactivity

condition of the reactor and the additional restrictions prohibiting CORE I l

ALTERATIONS and positive reactivity changes in the event the single injection l system becomes inoperable. j i -

The limitation for a maximum of one centrifugal charging pump to be l f OPERABLE and the Surveillance Requirement to verify all charging pumpe except i j

i the required 0FERABLE pump to be inoperable below 180*F provides assurance .

l that a mass addition pressure transient can be relieved by the operation of a j single RER relief valve.

i The boron capability required below 200*F is sufficient to provide a j 850TDOWN MARGIN of it delta k/k after xenon decay and cooldown from 200'F to l 140*F. This condition requires either 2,000 gallons of 7000 ppe borated water from the horic acid storage tanks or 7,750 gallons of 2300 ppe borated water f l

{

from the refueling water storage tank. p l The contained water volume limits include allowance for water not l

available because of discharge line location and other physical characteristics.

l

7. T and 1057 5

The limits on contained water volume and boron concentration of the RWST also ensure a pH value of between " 4 1r' 11 8 for the solution recirculated l l

l within containment after a IacA. This pu band minimises the evolution of j iodine and minimises the effect of chloride and caustic stress corrosion on

! mechanical systems and components.

The OPERASILITY of one boron injection system during REFUELING ensures

j. that this system is available for reactivity control while in MODE 6.

3/4.1.3 IENS" W h- - * **""*tTEa l

i The specifications of this section ensure that (1) acceptable power distribution limits are maintained, (2) the minimum SEUTDOWN MARGIN is maintained, and (3) limit the potential effects of rod misalignment on associated accident analyses. OPERABILITY of the control rod position indicators is required to determine control rod positions and thereby ensure compliance with the :::ontrol rod alignment and insertion limits.

3 3/4 1-3 AMENDMENT No. 60 FARLEY-UNIT 2

-. _ . _ . _ _ _ . _ . . _ . , _ _, _ , _ , _ , _ _ _ _ _ - " ~ ~ ~ '~~

wu== ameer aa== c_me imo sysmea \

! - -masas a.

I

~

~7,$ and 00,5- -

^

The limits on contained water vol and boron concentration of the RNsf ,

l also ensure a pH value of between 0.0 r' .i.0 for the solution recirculated l ;

j

within containeent after a 14ch. This pH band minimises the evolution of !

l j iodine and minimises the effect of chloride and caustic stress corrosion on '

l mechanical systems ar.d components.

I m ~_ .

4 Add 14 See-t 6 " l l i _

f i

b i

i e

FARLEY-UNIT 2 B 3/4 5-3

. ._ _ . - _- - - . . _ . . - _ _ _ . . - -- . . ~ -.

' =

INSERT "B" 3/4.5.6 ECCS RECIRCULATION FLUID oH CONTROL SYSTEM l

The OPERABILITY of the ECCS recirculation fluid pH control system ensures that there is a total <

of between 10,000 pounds (185 cubic feet) and 12,900 pounds (215 cubic feet) of trisodium phosphate compound as Na3PO4 + 12H2 0. %NaOH (or appropriate weights / volumes for equivalent compounds) available in the storage baskets in contamment to raise the pH of the recirculating solution into the range of 7.5 to 10.5. This pH band muumizes the evolution ofiodine and mimmizes the effect of chloride and caustic stress corrosion on mach =aical systems and hpts. 'Ibe verification that the storage baskets d

contain the reqmred amount of tnsodmm phosphate compound level is accomplished by verifying that the trisodium phosphate compound level is between the indicated fill marks on the baskets. An equivalent amount of tnsodium phosphate a-. i-W with a different chemical formula may be used. When 4 equivalent mm=m4 are used, the allowable weights / volumes may be different; however, the equivalent amount of tnsodium phosphate compound must raise the pH of the recirculatmg solution into the range of 7.5 to 10.5.

i 1

4 l

1 J

I i

e d

4 4

- - ._.- - - - . - - - - - ~ - _ . . . - _ _ - . . . - _ - . - . ~ . - . - - - . - . . - _ - - -

I- . M AllDENT SYSTEMS I

BASES 1,

. 3/4.6.2 DEPRESSURIEATIOil AND COOLIl0G SYSTEME

]

i l 3/4.6.2.1 CONTATMMENT SPRAY SYSTEM i

The OPERASILITY of the containment spray system ensures that containment l

j depressurisation and cooling capability will be available in the event of a i LocA. The pressure reduction and resultant lower containment leakage rate are l consistent with the assumptions used in the accident analyses. ,

l The containment spray system and the containment cooling system are i redundant to each other in providing post accident coo 1 Lag of the contatammat j atmosphere. Bowever, the contalammat spray system also p ovides a mechanism j for remov W iodine from the containment atmosphere and therefore the time j requirements for restoring an inoperable spray system to OPERABLE status have i been maintained consistent with the assigned other inoperable RSF equipment.

t

}

l- 3/4.6.2.2 SPRAY ADDITIVE SYSTEM The orERASILITY of the spray additive system ensures that ou -C Neos to the containment spray in the event of a limits on Naos volume ration ensure a ps value of S.5 and 11.0 for the solution recirculat containeen a IACA. This ps band minimises the evolution of iodine ses the effect of chloride and l caustic stress corrosion on cal sy components. The contaiaad water volume limit an allowance for water le because of tank discharge llam E _ ion or other physical characteristics. assumptions as with the iodine removal efficiency assumed in the ac 3/4.6.2.3 CONTAINMENT COOLING SYSTEM The OPERABILITY of the containment cooling system ensures that 1) the containment air temperature will be maintained within limits during normal operation, and 2) adequate heat removal capacity is available when operated in conjunction with the containment spray syst,ess during post-IACA conditions.

The contain-mat cooling system and the containment spray system are rahandant to each other in providing post accident cooling of the contalaamat atmosphere. As a result of this raduadmacy in cooling capability, the allowable out of service time requirements for the contalammat cooling system have been appropriately adjusted. However, the allowable out of service time requirements for the contalammat spray system have been maintained consistent with that assigned other inoperable ESF equipment since the containment spray system also provides a mechanism for removing iodine from the containment atmosphere.

FARLEY-UNIT 2 3 3/4 6-3

ML20134K555

Text

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