ML20065G316
Jump to navigation
Jump to search
| ML20065G316 | |
| Person / Time | |
|---|---|
| Site: | Vogtle  |
| Issue date: | 03/31/1994 |
| From: | GEORGIA POWER CO. |
| To: | |
| Shared Package | |
| ML20065G305 | List: |
| References | |
| NUDOCS 9404120242 | |
| Download: ML20065G316 (1) | |
Text
1.
ENCLOSURE INSERT FOR PAGE 3/4 8-12
- e. By verifying during shutdown, that the battery capacity is at least 80% of the manufacturer's rating when subjected to a performance discharge test, in accordance with table 4.8-3.
NEW PAGE 3/4 8-13a Table 4.8-3 Performance Discharge Test Surveillance Requirements Battery Battery Performance Test Frequency
^ ' " ""
Life Condition Per 60 Montha Per 24 Mmthe Per 12 Maths 13attesy Life No
< 85%
Degradation )
p2) o ofExpected Sc ice Life Degradation 0)
)
l3attery Life
> 85%
No ofExpxted Degradation 0)
X")
0 Service Lifc )
l
- 1. Degradation is defined as a decrease in battery capacity of more than 10% of capacity from its previous performance test, or the battery capacity is less then 90% of the manufacturer's rating.
- 2. Once per 60-month interval, this performance discharge test may be performed in lieu of tle battery service test required by Specification 4.8.2.ld.
- 3. The battery can be restored to a 60-month test interval by cell replacement if performance test results indicate that cell replacement will restore the battery to a minimum of 90% of rated capacity with no degradation. Replacement cells must be tested to demonstrate a minimum capacity of 100% of the manufacturcr's rating prior to installation.
- 4. Once per 24-month interval, a modified performance discharge test may be performed in lieu of the battery senice test required by Specification 4.8.2.ld. A modified performance dir. charge test is a test of the battery capacity and ita ability to provide a high rate, short duration load (usually the higlest rate of the duty cycle).
- 5. When battery life is greater tlum 85% of the expected life of the battery and degradation is indicated, cell replacement shall not be used to restore the capability of the battery for more than one year; and the battery shall be replaced within one year of the date of the discovery of the cell degradation.
9404120242 940331 PDR ADOCK 05000424 P'