ML20202G091
| ML20202G091 | |
| Person / Time | |
|---|---|
| Site: | Arkansas Nuclear  |
| Issue date: | 04/01/1986 |
| From: | ARKANSAS POWER & LIGHT CO. |
| To: | |
| Shared Package | |
| ML20202G070 | List: |
| References | |
| NUDOCS 8604140276 | |
| Download: ML20202G091 (1) | |
Text
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ELECTRICAL POWER SYSTEMS D.C. DISTRIBUTION - OPERATING LIMITING CONDITION FOR OPERATION 3.8.2.3 As a minimum, the following D.C. electrical sources shall be OPERABLE:
TRAIN "A" consisting of 125-volt D.C. bus No. 1, 125-volt D.C.
battery bank No. 1 and a full capacity charger.
TRAIN "B" consisting of 125-volt D.C. bus No. 2, 125-volt D.C.
battery bank No. 2 and a full capacity charger.
APPLICABILITY:
MODES 1, 2, 3, and 4.
ACTION:
a.
With one of the required battery banks inoperable, restore the inoperable battery bank to OPERABLE status within 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> 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 SHUTDOWN within the following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />, b.
With one of the required full capacity chargers inoperable, demonstrate the OPERABILITY of its associated battery bank by performing Surveillance Requirement 4.8.2.3.1.a.1 within one hour at least once per 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> thereafter.
If any Category A limit in Table 4.8-2 is not met, declare the battery inoperable.
SURVEILLANCE REQUIREMENTS 4.8.2.3.1 Each 125-volt battery bank and charger shall be demonstrated OPERABLE:
a.
At least once per 7 days be verifying that:
1.
The parameters in Table 4.8-2 n,eet the Category A LIMITS, and 2.
The total battery terminal voltage is greater than or equal to 129 volts on float charge for a 60 cell battery bank and greater than or equal to 124.7 volts on float charge for a 58 cell battery bank.
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:
1.
The parameters in Table 4.8-2 meet the Category B
- LIMITS, ARKANSAS - UNIT 2 3/4 8-8 Amendment No. 5#
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