ML20195B646

Marked-up TS Pages Re LAR 99-004,changing Plant Battery Surveillance

ML20195B646
Person / Time
Site:	Comanche Peak
Issue date:	05/27/1999
From:	TEXAS UTILITIES ELECTRIC CO. (TU ELECTRIC)
To:
Shared Package
ML20195B645	List: ML20195B641 ML20195B646
References
NUDOCS 9906020112
Download: ML20195B646 (4)

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ATTACHMENT 3 to TXX 99133 MARKUP OF AFFECTED TECHNICAL SPECIFICATION PAGES CTS page - 3/4.8-12 ITS page - 3.8 i f

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4 INSERT A On a one time basis, for battery BT1ED2, this performance discharge test may be performed in lieu of the battery service test required by Specification 4.8.2.1d, twice within a 60 month interval. This one time exception expires prior to entry into MODE 4 following the next Unit 1 outage of sufficient duration to perform a service test.

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t SURVEILLANCE REQUIREMENTS (continued)

I SURVEILLANCE FREQUENCY SR 3.8.4.6 Verify each battery charger supplies a 300 amps at a 130 V 18 months for 2 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br />.

S R 3. 8. 4. 7 --------.----------------------- N O T E S --------------------------------

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The modified performance discharge test in SR 3.8.4.8 may be performed in lieu of the service test in SR 3.8.4.7* crcc pc; S0 mor,ths.

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Verify requirement during MODES 3,4,5,6 or with core off-loaded.

Verify battery capacity is adequate to supply, and maintain 18 months in OPERABLE status, the required emergency loads for the design duty cycle when subjected to a battery service test.

(continued)

!On's one timeLbasis!.for batterp BT1ED2Ta performance ~ discharge: test inay be' performed in lieu of the: battery service test required by Specification :3.8.4.7, twice.within a;60 month interval?This,one; time exception. expires prior to. entry into MODEj4 following;the next U. nit 1 outage.of sufficient duration to. perform a. service test; i

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COMANCHE PEAK - UNITS 1 AND 2 3.8-26 AMENDMENT 64 j

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D. C. SOURCES SURVEILLANCE REQUIREMENTS (Continued) b.

At least once per 92 days and within 7 days after a battery discharge with battery terminal voltage below 110 volts, or battery overcharge with battery terminal voltage above 150 volts, by verifying that:

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The parameters in Table 4.8-2 meet the Category B limits, 2)

There is no visible corrosion at either terminals or connectors,' or,the ' connection resistance of these items is less than 150 x 10' che, and 3)

The average electrolyte temperature of 12 connected cells is above 70*F.

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At least once per 18 months by verifying that:

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The cells, cell plates, and battery racks show no visual indication of physical damage or abnormal deterioration, i

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The cell-to-cell and terminal connections are clean, tight, and coated with anticorrosion material, 3)

The resistance of each cell-to-cell and terminal connection is less than or equal to 150 x 10 ohm, and 4)

The battery charger will supply at least 300*~ amperes"at -

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greater than or equal to 130 volts for at least 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br />.

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At.least once per 18 months, during shutdown, by verifying that the battery capacity is adequate to supply and maintain in OPERABLE status all of the actual or simulated emergency loads for the design duty cycle when the battery is subjected to a battery service test; e.

. At least once per 60 months, during shutdown, by verifying that the battery capacity is at least 80% of the manufactgrsr's rating when g

subjected to a performance discharge test.

Once plir 60-month gg, cop interval this performance discharge test may be performed in lieu of the battery service test. required by Specification 4.8.2.ld.; and f.

At least once per 18 months, during shutdown, by giving performance discharge tests of battery capacity to any battery that shows signs

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of degradation or has reached 85% of the service life expected for the application. Degradation is indicated when the battery capacity drops more than 10% of rated capacity from its average on previous performance tests, or is below 90% of the manufacturer's rating.

• 225 amperes for. Unit 2 until replacement of the battery charger during the 3rd refueling outage for Unit 2.

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y4 3 ascA7" A 99-co't-COMANCHE PEAK - UNITS 1 & 2 3/4 8-12 Unit 1 - Amendment No. 53 Unit 2 - Amendment No. 39 a