ML20126F545
| ML20126F545 | |
| Person / Time | |
|---|---|
| Site: | Millstone  |
| Issue date: | 06/30/1985 |
| From: | NORTHEAST NUCLEAR ENERGY CO. |
| To: | |
| Shared Package | |
| ML20126F542 | List: |
| References | |
| NUDOCS 8506170528 | |
| Download: ML20126F545 (2) | |
Text
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Docket No. 50-336 Millstone Nuclear Power Station, Unit No. 2 Proposed Revision to Technical Specifications On-Site Power Distribution System - Battery Service Test 8506170528 850611 PDR ADOCK 05000336 P
PM June 1985
c g..
ELECTRICAL POWER SYSTEMS SURVEILLANCE REQUIREMENTS (Continued) 2.
The pilot cell specific gravity, corrected to 770F, is > 1.200, 3.
The pilot cell voltage is) 2.08 volts, and 4.
The overall battery voltage is > 125 volts.
-b.
At least once per 92 days by verifying that:
1.
The voltage of each connected cell is > 2.08 volts under float charge, and 2.
The specific gravity, corrected to 770F, of each cell is > 1.200.
c.
At least once per 18 months by verifying that:
l.
The cells, cell plates and battery racks show no visual indication of physical damage or deterioration, 2.
The cell-to-cell and terminal connections are clean, tight, free of corrosion and coated with anti-corrosion material, and 3.
The battery charger will supply at least 800 amperes at a minimum of 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 />.
d.
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 emergency loads for 3 hours3.472222e-5 days <br />8.333333e-4 hours <br />4.960317e-6 weeks <br />1.1415e-6 months <br /> 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 manufacturer's rating when subjected to a performance discharge test. This performance discharge test may be performed in lieu of the battery service test.
MILLSTONE - UNIT 2 3/48-9
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