ML17289A444
| ML17289A444 | |
| Person / Time | |
|---|---|
| Site: | Columbia  |
| Issue date: | 04/06/1992 |
| From: | WASHINGTON PUBLIC POWER SUPPLY SYSTEM |
| To: | |
| Shared Package | |
| ML17289A443 | List: |
| References | |
| NUDOCS 9204100185 | |
| Download: ML17289A444 (2) | |
Text
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ELECTRICAL POMER SYSTEMS
'URVEILLANCE RE UIREMENTS Continued d.
At least once per 18 months, during shutdown, by verifying that either:
1.
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 /> for Divisions 1, 2 and 3 when the battery is subjected>to a
battery service test, or (R~4~>d l PSALM.
2.
The battery capacity is adequate to supply a dummy load~~
(Minimum amperage) hile maintaining the battery terminal voltage greater tha or equal to 21 volts for the %24-volt battery, 105 volts fo the 125-volt battery, and 21 1*<<2 F
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+CC A4' A<cl$$ l5 0-6 6"15 15-60 1-2 2-60 60-119 BO-1A/-1B (t24V/Div BO-2A/-2B (i24V/Div 2) 24 Bl-1 (125V/DIV 1) 570 B1-2 (125V/DIV 2) 400 B2-1 (250V/DIV 1) 1320 24 4
26 230 24 24 260 520 24 2
80 185 24 180 185 480 24 24 180 185 444 24 24 276 241 574 HPCS DUTY CYCLE SECONDS SECONDS SECONDS 0-13 13"20 20"60 e.
At least once per 60 months during shutdown by verifying that the battery capacity is at least 80X (83.4X for the 250 Volt battery) 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.
f.
At least once per 18 months during shutdown performance discharge tests of battery capacity shall be given to any battery that shows signs of degradation or has reached 85K of the service life expected for the application.
Degradation is indicated when the battery capacity drops more than 10K of rated capacity from its average on previous performance tests, or is below 90K (93.4X for the 250 Volt battery) of the manufacturer's rating.
WASHINGTON NUCLEAR - UNIT 2 3/4 8-13 9204100185 22220AQA2 PDR
- 000K 05000897
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