ML20043G615
| ML20043G615 | |
| Person / Time | |
|---|---|
| Site: | Farley  |
| Issue date: | 06/15/1990 |
| From: | ALABAMA POWER CO. |
| To: | |
| Shared Package | |
| ML20043G612 | List: |
| References | |
| NUDOCS 9006200491 | |
| Download: ML20043G615 (7) | |
Text
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Unit 1 Revision Page 3/4 8-9(a)
Replace Page 3/4 8-13 Replace R_eyision Unit 2 e
Page 3/4 8-12(a)
Replace Page 3/4 8-16 Replace i
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i 9006200491 900615 ADOCKOSOOg{j8 PDR P
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ELECTRICAL POVER SYSTEMS AUXILIAR_Y BUILDING D.C. DISTRIBUTION - OPERATING-SURVEILLANCE REQUIREMENTS (Continued) 5.
The battery capacity is adequate to supply and maintain in OPERABLE status all of the actual emergency loads for 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> when the battery is subjected to a battery service test or the individual cell voltage does not 4
decrease below 1.75 volts when the battery is subjected to the equivalent load profile based on anticipated breaker operations required during loss-of-offsite power (LOSP) and loss-of-coolant accident (LOCA) conditions as described in the Final Safety Analysis Report.
d.
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.
Once per 60 month interval,-this performance discharge test may be performed in lieu of the battery service test per 4.8.2.3.2.c.5.
e.
At least once per 18 months, performance discharge test of battery capacity shall be given to any battery that shows signs of degradation or has reached 17 years or 85% of the service life expected for the application, whichever comes first.
Degradation is indicated when the battery capacity drops more than 10% of rated capacity from its average on previous performance tests, or is belov 90% of the manufacturer's rating.
FARLEY-UNIT 1 3/4 8-9(a)
AMENDMENT NO.
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ELECTRICAL POVER SYSTEMS SERVICE VATER BUILDING D.C. DISTRIBUTION - OPERATING SURVEILLANCE REQUIREMENTS (Continued) 2.
There is no visible excessive corrosion at either terminals or connectors, or the connection resistance of these items is less than or equal to 1500 microhms from post to post *, and 3.
The average electrolyte temperatures of ten of the connected cells deviate less than or. equal to 5'F from each other**.
c.
At least once per 18 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 connections are clean, tight, and coated with anti-corrosion material, 3.
The resistance of each cell-to-cell and terminal connection is less than or equal to 1500 microhms from post to post *, and 4.
The battery charger vill supply at least 3 amperes at greater than or equal to 125 volts for at least 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br />.
5.
The battery capacity is adequate to supply and maintain in OPERABLE status all of the actual emergency loads for 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> when the battery is subjected to a battery service test or the individual cell voltage does.not decrease below 1.75 volts when the battery is subjected to the equivalent load profile based on anticipated breaker operations required during loss-of-offsite power (LOSP) and loss-of-coolant accident (LOCA) conditions as described in the Final Safety Analysis Report.
For any connection resistance determined to be greater that 1500 microhms from post to post, the battery may be considered operable provided that within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> the connection resistance is restored to less than or equal to 1500 microhms from post to post.
If a deviation greater that 5'F is determined, the battery may be considered operable provided that within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> the temperature deviation is corrected.
FARLEY-UNIT 1 3/4 8-13 AMENDHENT NO.
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~ ELECTRICAL POWER SYSTEMS AUXILIARY BUILDING D.C. DISTRIBUTION - OPERATING SURVEILLANCE REQUIREMENTS (Continued) 5.
The battery capacity is adequate to supply and maintain in OPERABLE status all of the actual emergency loads for 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> when the battery is subjected to a battery service test or the individual cell voltage does not decrease below 1.75 volts when the battery is subjected to the equivalent load profile based on anticipated breaker operations required during loss-of-offsite (LOSP).
I and loss-of-coolant accident (LOCA) conditions as described in the Final Safety Analysis Report.
d.
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. Once per 60 month.
interval, this performance discharge test may be performed in lieu of battery service test per 4.8.2.3.2.c.5.
At least once per 18 months, performance discharge test of e.
battery capacity shall be given to any battery that shows signs of degradation or has reached 17 years or 85% of the service life expected for the application, whichever comes first.
Degradation is indicated when the battery capacity drops more than 10% of rated capacity from its average on previous performance tests,-or is belov 90% of the manufacturer's rating, i
FARLEY-UNIT 2 3/4 8-12(a)
AMENDHENT NO.
ELECTRICAL POWER SYSTEMS SERVICE VATER BUILDING D.C. DISTRIBUTION - OPERATING SURVEILLANCE REQUIREMENTS (Continued) 2.
There is no visible excessive corrosion at either terminals or connectors, or the connection resistance of these items is less than or equal to 1500 microhms from post to post *, and 3.
The average electrolyte temperatures of ten of the connected cells deviate less than or equal to 5'F from each other**.
1 c.
At least once per 18 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 connections are clean, tight, and coated with anti-corrosion material, 3.
The resistance of each cell-to-cell and terminal connection is less than or equal to 1500 microhms from post to post *, and 4.
The battery charger vill supply at least 3 amperes at greater than or equal to 125 volts for at least 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br />.
5.
The battery capacity is adequate to supply and maintain in OPERABLE status all of the actual emergency loads for 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> when the battery is subjected to a battery service test or the individual cell voltage does not decrease below 1.75 volts when the battery is subjected to the equivalent load profile based on anticipated j
breaker operations required during loss-of-offsite power (LOSP) and loss-of-coolant accident (LOCA) conditions as described in the Final Safety Analysis Report.
For any connection resistance determined to be greater than 1500
.microhms from post to post, the battery may be considered operable provided that within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> the connection resistance is restored to less than or equal to 1500 microhms from post to post.
If a deviation greater than 5'F is determined, the battery may be considered operable provided that within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> the temperature deviation is corrected.
FARLEY-UNIT 2 3/4 8-16 AMENDMENT NO.
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ATTACHMENT 2 Significant Hazards Consideration Evaluation Pursuant to 10CFR50.92 for the-Proposed Deletion of Battery Load Profiles Technical Specification Change Proposed Changes:
Revise. Technical Specification 4.8.2.3.2.c.5 and 4.8.2.5.2.c.5 to delete the equivalent load profiles provided in table form.
The tables would be replaced with a statement requiring the batteries be tested by subjecting them to an " equivalent load profile based on anticipated breaker operations required during loss-of-offsite power (LOSP) and loss-of-coolant accident (LOCA) conditions."
Background:
The explicitly described equivalent load profiles used for battery capacity testing are proposed to be revised to remove unnecessary details from the Technical Specifications. The tables in Technical Specifications are currently based on subjecting the batteries to equivalent load profiles based on anticipated breaker operations required during loss-of-offsite power (LOSP) and loss-of-coolant accident (LOCA) conditions. The load profiles for these accident conditions are contained in the Final Safety Analysis Report Update (FSAR). Removal of the explicit tables from the Technical Specifications vill preclude requesting Technical Specification changes for each emergency load added or deleted. Referencing the FSAR load profiles in the Technical Specification surveillance requirements vill ensure that the batteries are subjected to a design basis load profile service test. Any future changes to the load profile vill be performed in accordance with the requirements of 10CFR50.59.
Analysis:
Alabama Power Company has reviewed the requirements of 10CFR50.92 as they.
relate to the proposed change to revise the battery testing requirements and considers the proposed change not to involve a significant hazards consideration.
In support of this conclusion, the following analysis is provided:
1.
The proposed change vill not increase the probability or consequences of an accident previously evaluated. The change is administrative in nature in that Technical Specifications vill still require testing of the batteries based on expected loads during LOSP and LOCA conditions.
Since it is still required that the batteries demonstrate the ability to carry the design basis emergency loads, the response of the plant to previously evaluated accidents vill not be affected.
2.
The proposed change does not create the possibility of a new or different kind of accident than any accident previously evaluated.
Since no change is being made to the design, operation, maintenance or testing of the plant, a new mode of failure is not created.
A new or different kind of accident could, therefore, not result.
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3.
The proposed' change does not reduce a margin of safety.
Surveillance requirements for demonstrating the operability of the station batteries are still based on the recommendations of IEEE Standard 450-1980, "IEEE Recommended Practice for Maintenance, Testing and Replacement of Large Lead Storage Batteries for Generating Stations and Substations." The batteries are still required to demonstrate the ability to carry loads required under design basis emergency conditions.
Consequently, margins of safety are not reduced.
==
Conclusion:==
Because battery testing vill still be required to be performed in a manner which will demonstrate their operability for the design basis event,- these changes are considered administrative in nature and do not impact operation of the facility. Thus, Alabama Power Company has determined that the proposed change vill not significantly increase the probability or consequences of an accident previously evaluated, create the possibility of a new or different kind of accident from any accident previously evaluated, or involve a significant reduction in a margin of safety.
Therefore, Alabama Power Company has determined that this proposed change meets the requirements of 10CFR50.92 (c) and does not-involve a significant hazards consideration.
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