ML19309D450

Proposed Changes to Tech Specs,App a Re Reactivity Control Sys

ML19309D450
Person / Time
Site:	Crystal River
Issue date:	03/24/1980
From:	FLORIDA POWER CORP.
To:
Shared Package
ML19309D443	List: ML19309D439 ML19309D450
References
NUDOCS 8004100367
Download: ML19309D450 (12)

Text

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O INDEX LIMITIf4G CONDITI0f15 FOR OPERATION AND SURVEILLANCE REQUIREMENTS SECTIO!! PAGE 3/4.0 APPLICABILITY........................................... 3/4 0-1 3/4.1 REACTIVITY CONTROL SYSTEMS 3/4.1.1 B0 RATION CONTROL Sh u td own Ma rgi n - O pe ra t i n g . . . . . . . . . . . . . . . . . . . . . . . . . . 3/4 1-1 Sh u td own Ma rg i n - S h u td own . . . . . . . . . . . . . . . . . . . . . . . . . . . 3/4 1-1 Bo r on O i l ut i on . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3/4 1-3 Moderator Tempe rat ure Coe f fic i ent. . . . . . . . . . . . . . . . . . . . 3/4 1-4 Mi nimum Tempe rat ure fo r Cri ti cal i ty . . . . . . . . . . . . . . . . . . 3/4 1-5 3/4.1.2 B0 RATION SYSTEMS Fl ow Pa t h s - S h u t d own . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3/4 1-6 Fl ow P a t h s - O p e ra t i n g . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3/4 1-7 Makeup Pump - Shutdown................................ 3/4 1-9 Makeup Pumps - Ope ra t i ng . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3/4 1-10 Decay Feat Removal Pump - Shutdown. . . . . . . . . . . . . . . . . . . 3/4 1-11 Bo ri c Ac id Pump - S h utdown . . . . . . . . . . . . . . . . . . . . . . . . . . . 3/4 1-12 Boric Ac id Pumps - 0pe rat i ng . . . . . . . . . . . . . . . . . . . . . . . . . 3/4 1-13 Borated Water Sources - Shutdown..................... 3/4 1-14 Borated Water Sources - Operati ng . . . . . . . . . . . . . . . . . . . . 3/4 1-16 3/4.1.3 MOVABLE CONTROL ASSEMBLIES Group Height - Safety and Regulating Rod Groups...... 3/4 1-18 Group Height - Axi al Power Shapi ng Rod Group. . . . . . . . . 3/4 1-20 Position Indicator Channels.......................... 3/4 1-21 Ro d D ro p Ti me . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3/4 1-23 Sa fe ty Rod I n se rt i on Li mi t. . . . . . . . . . . . . . . . . . . . . . . . . . . 3/4 1-24 Regul ating Rod In sert ion Limi ts . . . . . . . . . . . . . . . . . . . . . . 3/4 1-25 Rod Program.......................................... 3/4 1-33 Xenon Reactivity..................................... 3/4 1-36' Axial Power Shapi ng Rod Insertion Limits. . . . .. . . . . . . . 3/4 1-37 CRYSTAL RIVER - UNIT 3 III 600.4100367

3/4.1 REACTIVITY CONTROL SYSTEMS ,

3/4.1.1 B0 RATION CONTROL SHUTDOWN MARGIN LIMITING CONDITION FOR OPERATION 3.1.1.1.1 The SHUTDOWN MARGIN shall be >1*, k/k.

APPLICABILITY: MODES 1, 2* and 3.

ACTION:

With the SHUTDOWN MARGIN < 1 *, ak/k, immediately initiate and continue boration with one .of the OPERABLE borated water sources of Specifica-tion 3.1.2.9 until the required SHUTDOWN MARGIN is restored.

SURVEILLANCE REQUIREMENTS I

4.1.1.1.1.1 The SHUTDOWN MARGIN shall be determined to be >1", ak/k: _

a. Within one hour after detection of an inoperable control rod (s) and at least once per 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> thereafter'while the rod (s) is in-operable. If the inoperable control rod is immovable or untripp-able, the above required SHUTDOWN MARGIN shall be increased by an amount at least equal to the withdrawn worth of the immovable or untrippable control rod (s).

b. When in MODES 1 or4 2 , at least once per 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br />, by verifying that regulating rod groups withdrawal is within the limits of Specification 3.1.3.6.

c. When in Mode 2## within 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> prior to achieving reactor criticality by verifying that the'. predicted critical control rod ,

l position is within the limits of Specification 3.1.3.6.

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d. Prior to initial operation above 5" RATED THERMAL POWER after ,

, each fuel loading by consideration of the factors of e. below,

with the regulating rod groups at the maximum insertion limit of i Specification 3.1.3.6.

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• With Keff H.O. l

1. With Keff <1.0.

• See Special Test Exception 3.10.4. ,

CRYSTAL RIVER - UNIT 3 3/4 1-1 ,

3/4.1 REACTIVITY CONTROL SYSTEMS 3/4.1.1 BORATION CONTROL SHUTDOWN MARGIN LIMITING CONDITION FOR OPERA" 3.1.1.1.2 The SHUTDOWN P 71N shall be >2.2", ak/k.

APPLICABILITY: MODES 4 and 5.

ACTION:

fiode 4 With the SHUTDOWN MARGIN <2.2" ak/k, immediately initiate and continue boration with one of the OPERABLE borated water sources of Specifica-tion 3.1.2.9 until the required SHUTDOWN MARGIN is restored.

Mode 5 With the SHUTDOWN MARGIN < 2. 2*, ak/k, irmediately initiate and continue boration with one of the OPERABLE borated water sources of Specifica-tion 3.1.28.

SURVEILLANCE REQUIREMENTS 4.1.1.1.2.1 The SHUTDOWN MARGIN shalI be detemined to be >2.2". ak/k:

a. Within one hour after detection of an inoperable control rod (s) and at least once per 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> thereafter while the rod (s) is in-operable. If the inoperable control rod is immovable or untripp-able, the above required SHUTDOWN MARGIN shall be increased by an amount at least equal to the withdrawn worth of the immovable or untrippable control rod (s).

b. At least once per 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> by consideration of the following fac-tors:

1. Reactor coolant system boron concentration,

2. Control rod position,

3. Reactor coolant system average temperature,

4. Fuel burnup based on gross thermal energy generation,

5. Xenon concentration, and

6. Samarium concentration CRYSTAL RIVER - UNIT 3 3/4 1-2a

REACTIVITY CONTROLS SYSTEMS FLOW PATHS - OPERATING LIMITING CONDITION FOR OPERATION 3.1.2.2 Each of the following boron injection flow paths shall be OPERABLE:

a. A flow path from the concentrated boric acid storage system via a boric acid pump and makeup or decay heat removal (DHR) pump to the Reactor Coolant System, and

b. A flow path from the borated water storage tank via makeup or DHR pump to the Reactor Coolant System.

APPLICABILITY: MODES 1, 2, 3 and 4.

ACTION:

Modes 1, 2 and 3

a. With the flow path from the concentrated boric acid storage system inoperable, restore the inoperable flow path to OPERABLE status within 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> or be in at least HOT STANDBY and borated to a SHUTDOWN MARGIN equivalent to 1" a k/k at 200 F within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />; restore the flow path to CPERABLE status within the next 7 days or be in COLD SHUTDOWN within the next 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />.

b. With the flow path from the borated water storage tank inoperable, restore the flow path to OPERABLE status within one hour or be in at least HOT STANDBY within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and in COLD SHUTDOWN within the following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />.

Mode 4

a. With the flow path from the concentrated boric acid storage system inoperable, restore the inoperable flow path to OPERABLE status within 72 hous or be borated to a SHUTDOWN MARGIN equivalent to 2.2". ok/k at 200*F within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />; restore the flow path to OPERABLE status within the next 7 days or be in COLD SHUTDOWN within the next 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />.

CRYSTAL otter - UNIT 3 3/4 1-7

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REACTIVITY CONTROL SYSTEMS FLOW PATHS - OPERATING ,

LIMITING CONDITION FOR OPERATION i ACTION: (Continued) ,

1 b. With the flow path from the borated water storage tank inoper-able, restore the flow path to OPERABLE status within one hour or be in COLD SHUTDOWN within the following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />.

SURVEILLANCE RE0VIREMENTS

4.1.2.2 Each of the above required flow paths shall be demonstrated OPER-ABLE

! a. At least once per 7 days by verifying that the pipe temperature of the heat traced portion of the flow path from the concentrated  ;

boric acid storage system is > 105 F.

i b. At least once per 31 days by verifying that each valve (manual, power operated or automatic) in the flow path that is not locked, seal ed , or otherwise secured in position, is in its correct position. l l

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CRYSTAL RIVER - UNIT'3 3/4 1-8 t

REACTIVITY CONTROL SYSTEMS MAKEUP PUMPS - OPERATING LIMITING CONDITION FOR OPERATION l

3.1.2.4.1 At least two makeup pumps shall be OPERABLE.

APPLICABILITY: MODES 1, 2, and 3 ACTION: ,

With only one makeup pump OPERABLE, restore at least two makeup pumps to r OPERABLE status within 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> or be in at least HOT STANDBY and borated to a SHUTDOWN MARGIN equivalent to 1% ak/k at 200*F within the next 6 ,

hours; restore at least two makeup pumps to OPERABLE status within the next 7 days or be in COLD SHUTDOWN within the next 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />.

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r SURVEILLANCE REQUIREMENTS , 4.1.2.4.1 No additional Surveillance Requirements other than those requir-ed by Specification 4.0.5.

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REACTIVITY CONTROL SYSTEMS MAKEUP PUMPS - OPERATING

LIMITING CONDITION FOR OPERATION i 3.1.2.4.2 At least one makeup pump shall be OPERABLE.

APPLICABILITY: MODE 4*

l ACTION:

llith no makeup pump OPERABLE, restore at least one makeup pump to OPERABLE status within one hour or be borated to a SHUTDOWN MARGIN equivalent to 2.2?, Ak/k at 200*F and be in COLD SHUTDOWN within the next 20 hours2.314815e-4 days <br />0.00556 hours <br />3.306878e-5 weeks <br />7.61e-6 months <br />.

! t 1 SURVEILLANCE REQUIREMENTS

. .i 4.1.2.4.2 No additional Surveillance Requirements other than those requir- .

ed by Specification 4.0.5.  !

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REACTIVITY CONTROL SYSTEMS ,

BORIC ACID PUMPS - OPERATING i

LIMITING CONDITION FOR OPERATION 3.1.2.7 At least one boric acid pump in the boron injection flow path required by Specification 3.1.2.2a shall be OPERABLE and capable of being powered from an OPERABLE emergency bus if the flow path through the boric acid pump in Specification 3.1.2.2a is OPERABLE.

APPLICABILITY: MODES 1, 2, 3 and 4.

ACTION:

Modes 1, 2 and 3 Uith no boric acid pump OPERABLE, restore at least one boric acid pump to OPERABLE status within 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> or be in at least HOT STANDBY and borated to a SHUTDOWN MARGIN equivalent to 1". ak/k at 200 F within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />; restore at least one boric acid pump to OPERABLE status within the next 7 days or be in COLD SHUTDOWN within the next 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />.

Mode 4 With no boric acid pump OPERABLE, restore at least one boric acid pump to i OPERABLE status within 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> or be borated to a SHUTDOWN MARGIN ,

equivalent to 2.2", ak/k at 200 F within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />; restore at least one boric acid pump to OPERABLE status within the next 7 days or be in COLD SHUTOOWN within the next 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />.

SURVEILLANCE REQUIREMENTS 4.1.2.7 No additional Surveillance Requirements other than those required by Specification 4.0.5.

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CRYSTAL RIVER - UNIT 3 3/4 1-13 l

REACTIVITY CONTROL SYSTEMS BORATED WATER SOURCES - OPERATING I

LIMITING CONDITION FOR OPERATION ACTION: (Continued) borated to a SHUTDOWN MARGIN equivalent to 2.2% a k/k at 200 F within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />; restore the concentrated boric acid  :

storage system to OPERABLE status within the next 7 days or be in COLD SHUTDOWN within the next 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />.  ;

b. With the borated water storage tank inoperable, restore the tank ' '

to OPERABLE status within one hour or be in COLD SHUTDOWN vithin the next 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />.

SURVEILLANCE REQUIREMENTS e 4.1.2.9 Each borated water source shall be demonstrated OPERABLE:

a. At least once per 7 days by:

1. Verifying the boron concentration in each water source,

2. Verifying the contained borated water volume of each water source, and

3. Verifying the concentrated boric acid storage system solution temperature. .

b. At least once per 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> by verifying the BWST temperature when -

the outside air temperature is < 40 F.

CRYSTAL RIVER - UNIT 3 3/4 1-17 i

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SPECIAL TEST EXCEPTION SHUTOOWN MARGIN LIMITING CONDITION FOR OPERATION 3.10.4 The SHUTDOWN MARGIN requirement of Specification 3.1.1.1.1 may be suspended for measurement of control rod worth and shutdown margin provid-ed:

a. Reactivity equivalent to at least the highest estimated control j rod worth is available for trip insertion from OPERABLE control '

rod (s),and

b. All axial power shaping rods are withdrawn to at least 35% (indi-

' cated position) and OPERABLE.

APPLICABILITY: MODE 2.

ACTION:

a. With any safety or regulating control rod not fully inserted and with less than the above reactivity equivalent available for trip .

insertion or the axial power shaping rods not within their with- '

drawal limits, immediately initiate and continue boration with one of the OPERABLE borated water sources of Specification 3.1.2.9 un-til the SHUTDOWN MARGIN required by Specification 3.1.1.1.1 is re-stored. ,

b. With all safety or regulating cortrol rods fully inserted and the reactor subcritical by less than the above reactivity equivalent, immediately initiate and continue boration with one of the OPERABLE borated water sources of Specification 3.1.2.9 until the SHUTDOWN MARGIN required by Specification 3.1.1.1.1 is restored.

SURVEILLANCE REQUIREMENTS 4.10.4.1 The position of each safety, regulating, and axial power shaping rod either partially or fully withdrawn shall be determined at least once per 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br />.

4.10.4.2 Each safety or regulating control rod not fully inserted shall be demonstrated capable of full insertion when tripped from at least the 50% withdrawn position within 21 hours2.430556e-4 days <br />0.00583 hours <br />3.472222e-5 weeks <br />7.9905e-6 months <br /> prior to reducing the SHUTDOWN MAR-GIN to less than the limits of Specification 3.1.1.1.1. l 4.10.4.3 The axial power shaping rods shall be demonstrated OPERABLE by moving each axial power shaping rod > 6.5% (indicated position) within 4

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l hours prior to reducing the SHUTDOW'T MARGIN to less than the limits of

Specification 3.1.1.1.1 l

CRYSTAL RI\TR - UNIT 3 3/4 10-4 l

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REACTIVITY C0flTROL SYSTEMS.

BASES 3

3/4.1.1.a MIflifE4 TEMPERATURE FOR CRITICALITY

This specification ensures that the reactor will not be made critical with the Reactor Coolant System average tempera ~ture less than 525 F. This limi-tation is required to ensure 1) the moderator temperature coefficient is within its analyzed temperature range, 2) the protective instrumentation is within its nonnal operating range, 3) the pressurizer is capable of being in an OPERABLE status with a steam bubble, and 4) the reactor pressure ves-sel is above its minimum RTtlDT temperature.

i 3/4.1.2 BORATION SYSTEMS The boron injection system ensures that negative reactivity control is available during each mode of facility operation. The components required to perform this function include 1) borated water sources, 2) makeup or DHR-pumps, 3) separate flow paths, 4) boric acid pumps, 5) associated heat tracing systems, and 6) an emergency power supply from 0FERABLE emergency

, busses.

With the RCS average temperature above 200 F, a minimum of two separate and redundant boron injection systems are provided to ensure single functional capabil ity in the event an assuned failure renders one of the systems inoperable. Allowable out-of-service periods ensure that minor component repair or corrective action may be completed without undue risk to overall f acility safety from injection system failures during the repair period.

l The boration capability of either system is sufficient to provide a S!1UT-00Wil MARGIN from all operating corditions of 2.2" ok/k after xenon decay and cooldown to 200 F. The maximum boration capability requirement occurs at EOL from full power equilibrium xenon conditions and requires either 6000 gallons of 11,600 ppm boron from the boric acid storage tanks or 38,270 gallons of 2270 ppm boron from the barated water storage tank.

The requirements for a minimum contained volume of 415,200 gallons of borated water in the borated water storage tank ensures the capability for barating the RCS to the desired level. The specified quantity of borated water is consistent with the ECCS raquirements of Specification 3.5.4.

Therefore, the larger volume of borated water is specified.

! 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 change in the event the single injec-tion system becomes inoperable.

CRYSTAL RIVER - UNIT 3 8 3/a 1-2 l

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REACTIVITY CONTROL SYSTEMS BASES 3/4.1.2 B0 RATION SYSTEMS (Continued)

, The boron capability required in Mode 4 is based on a potential moderator dilution accident and is sufficient to provide a SHUTDOWN MARGIN of 2.2% ak/k after xenon decay and and ccoldown from 200*F to 140 F. This condition requires either 300 gallons of 11,600 ppm boron from the boric acid storage system or 1608 gallons of 2270 ppm boron from the borated water storage tank. To envelop future cycle BWST contained borated water ,

volume requirements, a minimum volume of 13,500 gallons is specified.

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 ensure a pH value of between 7.2 and 11.0 of the solution sprayed within containment after a design basis accident. The pH band minimizes the evolution of iodine and minimizes the effect of chloride and caustic stress corrosion cracking 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 (1) ensure that acceptable power distribution limits are maintained, (2) ensure that the minimum SHUTDOWN MARGIN is maintained, and (3) limit the potential effects of a rod ejection

accident. 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.

l The ACTION statements which pe rmit limited variations from the basic requirements are accompanied by additional restrictions which ensure that the original criteria cre met. For example, misalignment of a safety or.

regulating rod requires a restriction in THERMAL POWER. The reactivity worth of a misaligned rod is limited for the remainder of the fuel cycle to

, prevent exceeding the assumptions uced in the safety analysis.

$ The position of a rod declared inoperable dve to nisalignment should not be ,

included in computing the average group position for . determining the OPERABILITY of rods with lesser misalignments.

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