ML20078F613
| ML20078F613 | |
| Person / Time | |
|---|---|
| Site: | South Texas  |
| Issue date: | 11/08/1994 |
| From: | HOUSTON LIGHTING & POWER CO. |
| To: | |
| Shared Package | |
| ML20078F606 | List: |
| References | |
| NUDOCS 9411150316 | |
| Download: ML20078F613 (2) | |
Text
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4 ELECTRI' CAL POWER SYSTEMS 3/4,8.2 D.C.
SOURCES OPERATING LIMITING CONDITION FOR OPERATION 3.8.2.1 As a minimum, the following D.C.
electrical sources shall be OPERABLE:
l a.
Channel I 125-volt Battery Bank E1A11 (Unit 1), E2A11 (Unit 2) and ONE'of its two associated chargers, b.
Channel II 125-volt Battery Bank E1D11 (Unit 1), E2D11 j
(Unit 2) and ONEJof its two associated chargers, j
c.
Channel III 125-volt Battery Bank ElB11 (Unit 1), E2B11 (Unit 2) and ONEfof its two associated chargers, and d.
Channel IV 125-volt Battery Bank E1C11 (Unit 1), E2C11 (Unit 2) and DNE of its two associated chargers, APPLICABILITY:
MODES 1, 2,
3, and 4.
ACTION:
a.
With one of the required battery banks, and/or onc of the required chargcro for Channcic II cr III inoperable, restore the inoperable battery bank and/cr chargcr 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 only onc.NOLbattery chargersTforfa"Chahdelf0PERABLE, demonstrate restoreJat leastione batter statusLwithin"2~thc OPERADILITY'of"the'y' charger to OPERABLE acccciatid~battcry bank by performing ~CurYcillance Rcquirement 1.0.2.1.a.1)
.;ithin 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> and at least once pcr 0 hours0 days <br />0 hours <br />0 weeks <br />0 months <br /> thcreafter.
If any Category A limit in Tabic 1.0 2 is not met, dcclarc thc battery incpcrabic.
Rcatorc thc incpcrabic chargcr to OPERAELE atatus.;ithin 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 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 />.
SURVEILLANCE REQUIREMENTS 4.8.2.1 Each 125-volt battery bank and charger shall be demonstrated OPERABLE:
a.
At least once per 7 days by verifying that:
1)
The parameters in Table 4.8-2 meet the Category A limits, and 2)
The total battery terminal voltage is greater than or equal to 129 volts on float charge.
SOUTH TEXAS - UNITS 1 & 2 3/4 8-10 Unit 1 - Amendment No. 4 TSC-94\\94-046.C01 9411150316 941108 PDR ADOCK 05000498 P
ELECTRIDAL POWER SYSTEMS D.C.
SOURCES 1
SHUTDOWN LIMITING CONDITION FOR OPERATION 3.8.2.2 As a minimum, Channel I 125-volt Battery Bank E1A11 (Unit 1),
E2A11 (Unit 2) ahdIONE ! oflits ! two fas sOcistied idhargers, and Channel IV 125-volt batter " bank ^E1C11""(Unit ~1T, "E2C11"'(Unit 2)Tand their t-we ONELof Lits 7two' y' sociatisdschargersW shall be OPERABLE.
as APPLICABILITY:
MODES 5 and 6.
i ACTION:
a.
With the required battery banks and/cr charger 's) inoperable, immediately suspend all operations involving CORE ALTERATIONS, positive reactivity changes, or movement of irradiated fuel; initiate corrective action to restore the required battery banks and/or chargers to OPERABLE status as soon as possible, and within 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br />, depressurize and vent the Reactor Coolant System through a 2.0 square inch vent.
b;
.With5:BOTHEofEthblbht!tsryfchargers Torsthe :iOPERABLEfChannel inope rabl'e,; 'immediately : su spend s all.:[ operations ]; involving CORE;! ALTERATIONS,Jpositivel: reactivity 3changesk orfmovement of2 irradiated-lf uel;%initiatie L correctivejactionito/ restore theirequired. battery?banksland/orJchargersftoTOPERABLE~
statusias. soon. asli possible D::~and -lwithini8f hours", J depressufize andLventTthelReactor[ Coolant 2Systemt.through;a72d0)-square inch:-vent'.
SURVEILLANCE REQUIREMENTS 4.8.2.2 The above required 125-volt battery banks and chargers shall be demonstrated OPERABLE in accordance with Specification 4.8.2.1.
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SOUTH TEXAS - UNITS 1 & 2 3/4 8-10 Unit 1 - Amendment No. 4 Tsc-94 w4-c46. cot i
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