ML20072Q939

Proposed Tech Specs,Reflecting Removal of 125/130 Volt Dc Class 1E Baatery Load Cycle Table

ML20072Q939
Person / Time
Site:	Limerick
Issue date:	08/23/1994
From:	PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC
To:
Shared Package
ML20072Q938	List: ML20072Q935 ML20072Q939
References
NUDOCS 9409120297
Download: ML20072Q939 (5)

Text

_ . .-- .. -

I .

i ,

l l

ATTACHMENT 2 l LIMERICK GENERATING STATION UNIT 1 AND UNIT 2  ;

Docket Nos. ,

50-352 l 50-353 Ucense Nos.

NPF-39 NPF-85 i

TECHNICAL SPECIFICATIONS CHANGE REQUEST No. 93-25-0 AFFECTED PAGES UNIT 1 UNIT 2 f 3/4 8-11 3/4 8-11 3/4 8-12 3/4 8-12 l

l 9409120297 DR 940823 ADOCK 05000332 PDR

ELECTRICAL POWER SYSTEMS SURVEILLANCE REQUIREMENTS (Continued)

'b . At least once per 92 days and within 7 days after a battery discharge with battery terminal voltage below 105 volts or battery overcharge with battery terminal voltage above 150 volts, by verifying that:

1. The parameters in Table 4.8.2.1-1 meet the Category B limits I l

2. There is no visible corrosion at either terminals or connectors, or the connection resistance of these items is less than i 150 x 10-* ohm, and  !

l

3. The average electrolyte temperature of each sixth cell is 2 60 F.

c. At least once per 24 months by verifying that:

1. The cells, cell plates and battery racks show no visual indication of physical damage or abnormal deteriorttion,

2. The cell-to-cell and terminal connections are clean, tight, free of corrosion 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 excluding cable intercell connections, and

4. The battery chargers will supply the currents listed below at a ~ ,

minimum 'of 132 volts for at least 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br />.

Charaer Current (Amoeres)

IBCA1 300 l 1BCA2 300 1BCBI 300 ,

1BCB2 300 i 1BCC 75 1BCD 75

d. At least once per 24 months by verifying that either:

l 1. The battery capacity is. adequate to supply and maintain in OPERABLE status the required emergency loads for the l design duty cycle when subjecNd to a battery service test, or

2. The battery capacity is adequate to supply a dummy load equivalent to the required emergency loads for the design cycle .

when subjected to a battery service test. l LIMERICK - UNIT 1 3/4 8-11

ELECTRICAL POWER SYSTEMS SURVEILLANCE REQUIREMENTS (Continued)

e. At least once per 60 months by verifying that the battery capacity is at least 80% of the manufacturer's rating when subjected to a performance discharge test. At this once per 60 month interval, this performance discharge test may be performed in lieu of the battery service test (Specification 4.8.2.1.d),

f. At least once per 24 months performance discharge tests of battery capacity shall be given to any battery that shows signs 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.

LIMERICK - UNIT 1 3/4 8-12

I. .  !

ELECTRICAL POWER SYSTEMS I .

l SURVEILLANCE REQUIREMENTS (Continued)

b. At least once per 92 days and within 7 days after a battery discharge

with battery terminal voltage below 105 volts or_ battery overcharge I

with battery terminal voltage above 150 volts, by verifying that:

1. The parameters in

• tble 4.8.2.1-1 meet the Category B limits,

2. There is no visible , _4rrosion at either terminals or connectors, or the connection resistance of these items is less than 150 x 10-' ohm, and

3. The average electrolyte temperature of_ each sixth cell is 2 60 F.

c. At least once per 24 months by verifying that:

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

2. The cell-to-cell and terminal connection's are clean, tight, free of corrosion 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 excluding cable intercell connections, and

4. The battery chargers will supply the currents listed below at a minimum of 132 volts for at least 8 hour9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br />s:

Charoer Current (Amoeres) 2BCA1 300 ,

l 2BCA2 300 l l 2BCB1 300 i l 2BCB2 300 l 2BCC 75 2BCD 75

! d. At least once per 24 months by verifying that either:

1. The battery capacity is adequate to supply and maintain in OPERABLE status the required emergency loads for the design duty cycle when subjected to a battery service test, or i 2. The battery capacity is adequate to supply a dummy load l

equivalent to the required emergency loads for the design cycle when subjected to a battery service test.

l t

I l LIMERICK - UNIT 2 3/4 8-11 1

l 4 - _ . _ - . . - _ . _ . _ _. . - _. _

ELECTRICAL POWER SYSTEMS SURVEILLANCE RE0VIREMENTS (Continued) 1

e. At least once per 60 months by verifying that the battery capacity is at  !

least 80% of the manufacturer's rating when subjected to a performar.cc j discharge test. At this once per 60 month interval, this performance discharge test may be performed in lieu of the battery service test i (Specification 4.8.2.1.d).

f. At least once per 24 months performance discharge tests of battery capacity shall be given to any battery that shows signs 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.

l l

LIMERICK - UNIT 2 3/4 8-12