Text

Developmental Revision B - Technical Requirements Manual TR 3.1 - Reactivity Control Systems
	ML100550620
Person / Time
Site:	Watts Bar
Issue date:	02/02/2010
From:	; Tennessee Valley Authority
To:	; Office of Nuclear Reactor Regulation
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Boration Systems Flow Paths, Shutdown TR 3.1.1 Watts Bar - Unit 2 3.1-1 Technical Requirements (developmental)

A TR 3.1 REACTIVITY CONTROL SYSTEMS TR 3.1.1 Boration Systems Flow Paths, Shutdown TR 3.1.1 One of the following boron injection flow paths shall be OPERABLE and capable of being powered from an OPERABLE emergency power source:

a.

A flow path from an OPERABLE boric acid storage system, through the boric acid transfer pump, through a charging pump to the Reactor Coolant System (RCS), or

b.

A flow path from an OPERABLE RWST through a charging pump to the RCS.

APPLICABILITY:

MODES 4, 5, and 6.

NOTE-------------------------------------------------------------

For MODE 4, Technical Specification LCO 3.0.4.b is not applicable to ECCS high head (centrifugal charging) subsystem.

ACTIONS CONDITION REQUIRED ACTION COMPLETION TIME A. Boration Systems flow path OPERABILITY requirements not met.

OR Boration Systems flow path not capable of being powered by an OPERABLE emergency power source.

A.1 Suspend CORE ALTERATIONS.

Immediately AND A.2 Suspend positive reactivity additions.

Immediately

Boration Systems Flow Paths, Shutdown TR 3.1.1 Watts Bar - Unit 2 3.1-2 Technical Requirements (developmental)

A TECHNICAL SURVEILLANCE REQUIREMENTS SURVEILLANCE FREQUENCY TSR 3.1.1.1

NOTE------------------------------

Only required if the flow path from the boric acid storage tanks is required OPERABLE.

Verify temperature of the areas containing flow path components from the boric acid tanks is > 63°F.

12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months TSR 3.1.1.2 Verify, for the required OPERABLE flow path, that each manual, power operated, or automatic valve in the flow path that is not locked, sealed, or otherwise secured in position is in the correct position.

31 days

Boration Systems Flow Paths, Operating TR 3.1.2 Watts Bar - Unit 2 3.1-3 Technical Requirements (developmental)

A TR 3.1 REACTIVITY CONTROL SYSTEMS TR 3.1.2 Boration Systems Flow Paths, Operating TR 3.1.2 Two of the following three boron injection flow paths shall be OPERABLE:

a.

One flow path from the boric acid tanks, through a boric acid transfer pump, through a charging pump to the Reactor Coolant System (RCS).

b.

Two flow paths from the Refueling Water Storage Tank (RWST),

through charging pumps to the RCS.

APPLICABILITY:

MODES 1, 2, and 3.

ACTIONS CONDITION REQUIRED ACTION COMPLETION TIME A. One required flow path inoperable.

A.1 Restore required flow path to OPERABLE status.

72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months OR A.2.1 Be in MODE 3.

78 hours9.027778e-4 days 0.0217 hours 1.289683e-4 weeks 2.9679e-5 months AND A.2.2 Borate to a SDM equivalent to > 1% k/k at 200°F.

78 hours9.027778e-4 days 0.0217 hours 1.289683e-4 weeks 2.9679e-5 months AND A.2.3 Restore required path to OPERABLE status.

246 hours0.00285 days 0.0683 hours 4.06746e-4 weeks 9.3603e-5 months B. Required Action and associated Completion Time of Condition A not met.

B.1 Be in MODE 4.

6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months

Boration Systems Flow Paths, Operating TR 3.1.2 Watts Bar - Unit 2 3.1-4 Technical Requirements (developmental)

A TECHNICAL SURVEILLANCE REQUIREMENTS SURVEILLANCE FREQUENCY TSR 3.1.2.1

NOTE------------------------------

Only required if the flow path from the boric acid tanks is required OPERABLE.

Verify temperature of the areas containing portions of the required flow path from the boric acid tanks is

> 63°F.

12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months TSR 3.1.2.2 Verify, for the required OPERABLE flow paths, each manual, power operated or automatic valve in the flow path that is not locked, sealed, or otherwise secured in position is in the correct position.

31 days TSR 3.1.2.3 Demonstrate that each automatic valve in the flow path actuates to its correct position on an actual or simulated actuation signal.

18 months TSR 3.1.2.4 Verify that the flow path from the boric acid tanks delivers > 35 gpm to the RCS.

18 months

Charging Pump, Shutdown TR 3.1.3 Watts Bar - Unit 2 3.1-5 Technical Requirements (developmental)

A TR 3.1 REACTIVITY CONTROL SYSTEMS TR 3.1.3 Charging Pump, Shutdown TR 3.1.3 One charging pump in the boron injection flow path required by TR 3.1.1 shall be OPERABLE and capable of being powered from an OPERABLE emergency power source.

APPLICABILITY:

MODES 4, 5, and 6.

NOTE-------------------------------------------------------------

For MODE 4, Technical Specification LCO 3.0.4.b is not applicable to ECCS high head (centrifugal charging) subsystem.

ACTIONS CONDITION REQUIRED ACTION COMPLETION TIME A. Required charging pump inoperable.

OR Required charging pump not capable of being powered by an OPERABLE emergency power source.

A.1 Suspend CORE ALTERATIONS.

Immediately AND A.2 Suspend positive reactivity additions.

Immediately TECHNICAL SURVEILLANCE REQUIREMENTS SURVEILLANCE FREQUENCY TSR 3.1.3.1 Verify required charging pump's developed head at the test flow point is > the required developed head.

In accordance with Inservice Testing Program

Charging Pumps, Operating TR 3.1.4 Watts Bar - Unit 2 3.1-6 Technical Requirements (developmental)

A TR 3.1 REACTIVITY CONTROL SYSTEMS TR 3.1.4 Charging Pumps, Operating TR 3.1.4 Two charging pumps shall be OPERABLE.

APPLICABILITY:

MODES 1, 2, and 3.

ACTIONS CONDITION REQUIRED ACTION COMPLETION TIME A. One required charging pump inoperable.

A.1 Restore required charging pump to OPERABLE status.

72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months OR A.2.1 Be in MODE 3.

78 hours9.027778e-4 days 0.0217 hours 1.289683e-4 weeks 2.9679e-5 months AND A.2.2 Borate to a SDM equivalent to > 1% k/k at 200°F.

78 hours9.027778e-4 days 0.0217 hours 1.289683e-4 weeks 2.9679e-5 months AND A.2.3 Restore required charging pump to OPERABLE status.

246 hours0.00285 days 0.0683 hours 4.06746e-4 weeks 9.3603e-5 months B. Required Action and associated Completion Time of Condition A not met.

B.1 Be in MODE 4.

6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months

Charging Pumps, Operating TR 3.1.4 Watts Bar - Unit 2 3.1-7 Technical Requirements (developmental)

A TECHNICAL SURVEILLANCE REQUIREMENTS SURVEILLANCE FREQUENCY TSR 3.1.4.1 Verify required charging pump's developed head at the test flow point is > the required developed head.

In accordance with Inservice Testing Program

Borated Water Sources, Shutdown TR 3.1.5 Watts Bar - Unit 2 3.1-8 Technical Requirements (developmental)

A TR 3.1 REACTIVITY CONTROL SYSTEMS TR 3.1.5 Borated Water Sources, Shutdown TR 3.1.5 One of the following borated water sources shall be OPERABLE as required by TR 3.1.1:

a.

A Boric Acid Storage System, or

b.

The Refueling Water Storage Tank (RWST).

APPLICABILITY:

MODES 4, 5, and 6.

ACTIONS CONDITION REQUIRED ACTION COMPLETION TIME A. Required borated water source inoperable.

A.1 Suspend CORE ALTERATIONS.

Immediately AND A.2 Suspend positive reactivity additions.

Immediately

Borated Water Sources, Shutdown TR 3.1.5 Watts Bar - Unit 2 3.1-9 Technical Requirements (developmental)

A TECHNICAL SURVEILLANCE REQUIREMENTS

NOTES-----------------------------------------------------------

1.

TSR 3.1.5.1, TSR 3.1.5.2 and TSR 3.1.5.3 are only required to be performed if the RWST is the required borated water source.

2.

TSR 3.1.5.4, TSR 3.1.5.5 and TSR 3.1.5.6 are only required to be performed if the Boric Acid Storage System is the required borated water source.

SURVEILLANCE FREQUENCY TSR 3.1.5.1

NOTE------------------------------

Only required when ambient air temperature is

< 60°F.

Verify RWST solution temperature is > 60°F.

24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months TSR 3.1.5.2 Verify RWST boron concentration is > 3,100 ppm.

7 days TSR 3.1.5.3 Verify RWST borated water volume is

> 62,900 gallons.

7 days TSR 3.1.5.4 Verify Boric Acid Tank (BAT) solution temperature is

> 63°F.

24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months TSR 3.1.5.5 Verify BAT boron concentration is > 6,120 ppm and 6,990 ppm.

7 days TSR 3.1.5.6 Verify BAT borated water volume is > 5,300 gallons.

7 days

Borated Water Sources, Operating TR 3.1.6 Watts Bar - Unit 2 3.1-10 Technical Requirements (developmental)

A TR 3.1 REACTIVITY CONTROL SYSTEMS TR 3.1.6 Borated Water Sources, Operating TR 3.1.6 The following borated water sources shall be OPERABLE as required by TR 3.1.2:

a.

A Boric Acid Storage System, and

b.

The Refueling Water Storage Tank (RWST).

APPLICABILITY:

MODES 1, 2, and 3.

ACTIONS CONDITION REQUIRED ACTION COMPLETION TIME A. Required Boric Acid Storage System inoperable.

A.1 Restore Boric Acid Storage System, to OPERABLE status.

72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months OR A.2.1 Be in MODE 3.

78 hours9.027778e-4 days 0.0217 hours 1.289683e-4 weeks 2.9679e-5 months AND A.2.2 Borate to a SDM equivalent to 1% k/k at 200°F.

78 hours9.027778e-4 days 0.0217 hours 1.289683e-4 weeks 2.9679e-5 months AND A.2.3 Restore Boric Acid Storage System to OPERABLE status.

246 hours0.00285 days 0.0683 hours 4.06746e-4 weeks 9.3603e-5 months B. Required Action and associated Completion Time of Condition A not met.

B.1 Be in MODE 4.

6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months (continued)

Borated Water Sources, Operating TR 3.1.6 Watts Bar - Unit 2 3.1-11 Technical Requirements (developmental)

A ACTIONS (continued)

CONDITION REQUIRED ACTION COMPLETION TIME C. RWST boron concentration not within limits.

OR RWST borated water temperature not within limits.

C.1 Restore RWST to OPERABLE status.

8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months D. RWST inoperable for reasons other than Condition C.

D.1 Restore RWST to OPERABLE status.

1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months E. Required Action and associated Completion Time of Condition C or D not met.

E.1 Be in MODE 3 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months AND E.2 Be in MODE 4 with one or more RCS cold leg temperatures < 310°F.

12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months TECHNICAL SURVEILLANCE REQUIREMENTS SURVEILLANCE FREQUENCY TSR 3.1.6.1

NOTE------------------------------

Only required when outside air temperature is

< 60°F or >105°F.

Verify RWST solution temperature is 60°F and 105°F.

24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months TSR 3.1.6.2 Verify RWST boron concentration is 3,100 ppm and 3,300 ppm.

7 days (continued)

Borated Water Sources, Operating TR 3.1.6 Watts Bar - Unit 2 3.1-12 Technical Requirements (developmental)

B TECHNICAL SURVEILLANCE REQUIREMENTS (continued)

SURVEILLANCE FREQUENCY TSR 3.1.6.3 Verifiy RWST borated water volume is 370,000 gallons.

7 days TSR 3.1.6.4

NOTE------------------------------

Only required if the BAT is required OPERABLE.

Verify Boric Acid Tank (BAT) solution temperature is 63°F.

24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months TSR 3.1.6.5

NOTE------------------------------

Only required if the BAT is required OPERABLE.

Verify BAT boron concentration is in accordance with Figures 3.1.6A, 3.1.6B, and 3.1.6C.

7 days TSR 3.1.6.6

NOTE------------------------------

Only required if the BAT is required OPERABLE.

Verify BAT borated water volume is in accordance with Figures 3.1.6A, 3.1.6B, and 3.1.6C.

7 days

Borated Water Sources, Operating TR 3.1.6 TECHNICAL REQUIREMENTS FIGURE 3.1.6A BORIC ACID TANK LIMITS BASED ON RWST BORON CONCENTRATION Level 1 RWST Concentration I

I I

REGION OF ACCEPTABLE OPERATION 1

,/~I RWST =2700 [IDm B I I

I>,

~

~"-

r'4 ~ ;l RWST =.2800 oom B I

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I RWST>2900o[m B

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r-'"

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REGION OF UNACCEPTABLE OPERATION J

~,

I

~iJI

......H 6120 ppm MINIMUM II 6990 ppm MAXIMUM I

I II I

I I

I Indicated values include additional 1,91 0 gal compensation for liliiii unusablevol, instrument error, and conservatism.

11500 CI)zo

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~1000 C)

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w

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>cw

~

~9500 U1 c

WI-

~9000 isz

IE i 8500 Z

i 8000 6000 6100 6200 6300 6400 6500 6600 6700 6800 6900 7000 7100 CONCENTRATION IN BAT - PPM BORON RWST Concentration

-+-2700 ppm B -2800 ppm B ~2900ppm B I Watts Bar - Unit 2 Technical Requirements (ae~VeIOClmE~ntcal 3.1-13 B

Borated Water Sources, Operating TR3.1.6 TECHNICAL REQUIREMENTS FIGURE 3.1.68 BORIC ACID TANK LIMITS BASED ON RWST BORON CONCENTRATION Level 2 RWST Concentration 11500 (J)zo j1000 C)

I

~0500 z

w

E

J

~OOOO Q

W r.t:

~9500 tJ) cw

~900o is:z

ii S500

~

E I

I I

REGION OF ACCEPTABLE OPERATION I

..,,/( RWST=3100OCIl1B 1

~,

~~"-

,[ RWST = 320000m B J

~

~~

"-J I RWST ~ 3300 JPm B ]

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~[ '",

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REGION OF UNACCEPTABLE OPERATION I

/"

..........H6120ppm MINIMUM I [6990oom MAXIMUM

)

III II III III I

Indicated values include additional 1,910 gal compensation for unusablevot instrument error, and conservatism.

8000 6000 6100 6200 6300 6400 6500 6600 6700 6800 6900 7000 7100 CONCENTRATION IN BAT

PPM BORON R.WST Concentration

-+-3100 ppm B _3200 ppm B.....-3300 ppm B I Watts Bar - Unit 2 Technical Requirements

{aE~veIOrJ~mE~nt;tU 3.1-14

Borated Water Sources, Operating TR 3.1.6 TECHNICAL REQUIREMENTS FIGURE 3 1.6C BORIC ACI D TANK LIMITS BASED ON RWST BORON CONCENTRArlON Level 3 RWST Concentration I

I I

II

[

REGION OF ACCEPTABLE OPERATION

]

I I

I...

~V

~'[ RWST =3600 ppm B I

~K

~

J V[ RWST =3700 ppn B

]

~ "'

~

/

~

[ RWST =3800 porn B

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.*'" ~

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II REGION OF UNACCEPTABLE OPERATION I

~

f r--..H6120pptll MINIMUM I [ 6990 ppm MAXIMUM

]

II I

I I

I Indicated values include additional 1,91 0 gal compensation for unusablevol, instrument error, and conservatism.

I--

~ p.-

I 8000 6000 6100 6200 6300 6400 6500 6600 6700 6800 6900 7000 7100 CONCENTRATION IN BAT - PPM BORON U)zo

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co z

w

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RWST Concentration

--.-3600 ppm B _3700 ppm B........3800 ppm B I Watts Bar - Unit 2 Technical Requirements (aE~Ve~IOI)men'[all 3.1-15 B

Position Indication System, Shutdown TR 3.1.7 Watts Bar - Unit 2 3.1-16 Technical Requirements (developmental)

A TR 3.1 REACTIVITY CONTROL SYSTEMS TR 3.1.7 Position Indication System, Shutdown TR 3.1.7 The group demand position indicators shall be OPERABLE and capable of determining within +/- 2 steps the demand position for each shutdown or control rod that is not fully inserted.

APPLICABILITY:

MODES 3, 4, and 5, when the reactor trip breakers are closed.

ACTIONS CONDITION REQUIRED ACTION COMPLETION TIME A. One or more group demand position indicators inoperable.

A.1 Open reactor trip breakers.

Immediately TECHNICAL SURVEILLANCE REQUIREMENTS SURVEILLANCE FREQUENCY TSR 3.1.7.1 Determine that each group demand position indicator is OPERABLE by movement of the associated shutdown or control rod 10 steps in any one direction.

Within 4 hours4.62963e-5 days 0.00111 hours 6.613757e-6 weeks 1.522e-6 months after closing the reactor trip breakers if not completed within previous 31 days.

AND 31 days thereafter

ML100550620

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