ML19208A910

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Proposed Tech Spec Change 22,correcting Errors in Tech Spec Limits for Refueling Water Storage Tank Level
ML19208A910
Person / Time
Site: North Anna Dominion icon.png
Issue date: 09/13/1979
From:
VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
To:
Shared Package
ML19208A907 List:
References
NUDOCS 7909180245
Download: ML19208A910 (4)


Text

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PROPOSED TECHNICAL SPECIFICATI0ft CHANGE NO. 22 s2 O U=J' t'e 7909180 1

. REACTIVITY CONTROL SYSTEMS 30 RATED WATER SOURCES - SjilTDOWN LIMITING CONDITION FOR OPERATION 3.1.2.7 As a minimum, one of the following borated water sources shall be OPERABLE:

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A boric. acid storage. system. and associated heat tracing with:. -

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1.

~ A minimum contained borated water volume of 835 gallons, 2.

Between 20,000 and 22,500 ppm of baron, and 3.

A ninimum solution temperature of 145"F.

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b.

The refueling water s.torage tank with:

1.

A minimumcco' nta.ined'.corated water volume of 51,000 gallons.

2.

Bet.veen 2000 and'2100 ppm of baron, and 3.

A minimum solution temperature of 35 F.

APPLICABILITY.

MODES 5 and 6.

ACTION:

With no barated water source OPERABLE, suspend all operations involving CORE ALTERATIONS or positive reactivity changes until at least one barated water source is restored to OPERABLE status.

SURVEILLANCE REOUIREMENTS 4.1.2.7 The above required borated water source shall be demonstrated OPERABLE:

a.

At least once per 7 days by:

1.

Verifying the boron concentration of the water, 2.

Verifying the contained borated water voluma of the tank, and 3.

Verifying the boric acid storage tank solution temperature when it is the source of borated water.

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 RWST temperature when it is the source of barated water and the outside air temperature is < 35*F.

NORTH ANNA-UNIT 1 3/4 1-15 u d. !.i,34 rs o

up h REACTIVITY CONTROL SYSTEMS 30 RATED WATER SOURCES - OPERATING

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LIMITING CONDITION FOR OPERATION 1- '

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3.1.2.8 Each of the _following borat2d water soun:es shall be OPERABLE-s Tc. SSN

_ _a._ A boric __ acid storage system and associated heat tracing with:_..

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A contained borated wat'er volume of between 4450 and 16,280 gallons, 2.

Between 20,000 and'22,500 ppm of boron, and

3. ~ A minimum solution temperature of 145 F.

b.

TF.e aling water storage tank with:

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1.

A centained barated water volume of between 475,058 and 487,000 gallons, 2.

Between 2000 and 2100 ppm of baron, and 3.

A solution temperature between 40*F and 50*F.

APPLICABILITY: _ MODES 1, 2, 3 and 4.

ACTION:

a.

With the boric acid storage system inoperable, restore the storage system 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 STN10BY within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and borated to a SHUTCOWN MARGIN equivalent to at least 1.77% ak/k at 200*F; restore the 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 refueling water. storage tank inoperable, restore the tank 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 SHUT-DOWN within the followino 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />.

SURVEILLNICE REQUIREMENTS 4.1.2.8 Each borated water source shall be demonstrated OPERABLE:

i 10RTH ANNA-UNIT 1 3/4 1-16 ggj.1G

EMERGENCY CORE COOLING SYSTEMS D-REFUELING WATER STORAGE TANK LIMITING CONDITION FOR OPEPATION 3.5.5hThe refueling water: storage tank (RWST) shall be OPERABLE with:;

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. A contained borated water volume of between '475,058 and 487,000 gallons.

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b.

Between 2000 and 2100 ppm of baron, and

c..

A solution temperature between 40 F and 50 F.

AFDLICABILITY: MODES 1, 2, 3 and 4.

ACTICN:

With the refueling water storage tank inoperable, restore the tank to OPE?aBLE status within 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> or be in at least HOT STAND 3Y within 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 />.

SURVEILLANCE REOUIREMENTS 4.5.5 The RWST shall be demonstrated OPERABLE:

a.

At least once per 7 days by:

1.

Verifying the contained borated water voluma in the tank, and 2.

Verifying the boron concentration of the water.

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 RWST temperature.

NORTH ANNA-UNIT I 3/4 5-9

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