ML17285B073
| ML17285B073 | |
| Person / Time | |
|---|---|
| Site: | Columbia  |
| Issue date: | 03/02/1990 |
| From: | WASHINGTON PUBLIC POWER SUPPLY SYSTEM |
| To: | |
| Shared Package | |
| ML17285B072 | List: |
| References | |
| NUDOCS 9003130409 | |
| Download: ML17285B073 (1) | |
Text
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CONTROLLED COPY ELECTRICAL POWER SYSTEHS SURVEILLAHCE REOUIREHENTS (Continued) d.
At least once per a8 months, during shutdown, by veriiying that either:
1.
The battery capacIty is adequate to supply and maintain in OPERABLE status all oi the actual emergency loads
>or 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 bat:ery is subjec ed to a
battery service test, or 2.
The battery capacity is adequate to supply a durimy load of the following profile (Minimum amperage) while main:aining the battery terminal voltage greater than or equal to 21 volts for the +24-volt battery, 105 volts for the 125-volt battery, and 210 volts for the 250-volt battery, and 105 volts for the 125-volt Oiv.
3 battery.
BATTERY (VOLTS/OIV)
SECONDS SECONDS SECONDS MINUTES i~IIHUTES MINUTES HIHUTES 0-6 6-15
.15"60 1-2 2"60 60-119 119-120 1
BO-aA/-aB (+24V/Div 1)
BO"2A/-23'=24V/Oiv 2)
Ba"1 (125V/DIV 1)
B1-2 (125V/OIV 2) 82"1 (250V/OIV 1)
HPCS DUTY CYCLE a~ZV a~Z".1&Z.~ 17~Z.~ 17~ZV ag Mo z.9 a~g.+ v.oz.f ~z.f
@79 ~~y ~ ~ ~(80 ~(
i~02.%
v- /8o BHZZ0 GHZ30 K (8$
N /M H lsh J'32D HfH)3Zo ~52o SB-SDS ~990 44=" 404 SE ZP MO g.9 276 0"13 Bl-Hpcs (125v/0Iv 3)
- 55. 1 13-20 20"60 7S.6 aS.6
- 15. 6
- 15. 6 l6.0
- 15. 0 0"0 NRA OOQ.
ND OG oQ
'O OU ct'Ci OA (GEE OQ'A oQQ-e.
At least once per 60 months during shutdown by verifyina that the battery capacity is at least 80~ (83.4~ ior the 250 Vol bat.ery) c.
the manufacturer's rating when subjected to a periormance d'.scharge test.
At this once per 60-month interval, this periormanc discharge test may be periormed in lieu oi the battery sa. vice 'es".
At least once per 18 months dur ing shutdown perrormance discharge tests oi battery capacity shall be given to any battery that shows signs or degradation or has reached 85~ or the service liie evpec-ed for the application.
Degradation is ind'cased wnen the battery caoacity drops more than 10~ of rated capacity irom its average on previous performance
- tests, or is below 90~ (93.4 for rhe 250 Volt battery) or the manuracture.'s rating.
'ASHINGTOH NUCLEAR - UNIT 2 3/4 8"13 Amendment Ho. 68