ML20113G469
| ML20113G469 | |
| Person / Time | |
|---|---|
| Site: | South Texas  |
| Issue date: | 08/08/1996 |
| From: | HOUSTON LIGHTING & POWER CO. |
| To: | |
| Shared Package | |
| ML20113G464 | List: |
| References | |
| NUDOCS 9609270243 | |
| Download: ML20113G469 (3) | |
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I ATTACHMENT 3 l
MARK-UPS OF PROPOSED CHANGES i
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TECHNICAL SPECIFICATION 3.7.1.2 l
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9609270243 960808 PDR ADOCK 05G00498 P
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ST-HL-AE-5443 Page1of2 PLANT SYSTEMS AUXILIARY FEEDWATER SYSTEM LIMITING CONDITION FOROPERA'I1ON 3.7.1.2 At least four iW=wlent steam generator auxiliary feedwater pumps and associated flow paths shall be OPERABLE with:
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1
'Ihme motor-driven auxiliary feedwate pumps, each capable of being powered from a.
separate emergency busses, and b.
One steam turbine-driven auxiliary feedwater pump capable of being powered from an
(
OPERABLE steam supply system. /
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APPLICABILITY: MODES 1,2,end 3.
ACTION-With the Train A motor-driven auxiliary feedwater pump inoperable, initiate corrective a.
actions to restore the pump to OPERABLE status as soon as possible. The provisions of Specification 4.0.4 are not applicable.
b.
With any of the following combinations of auxiliary feedwater pumps inoperable:
1)
Train B or Train C motor-driven pump, l
2)
Train D turbine-driven pump and any one motor-driven pump, 3)
Train A and either Train B or Train C motor-driven pump, or 4)
Train D turbine friven pump Restore the affcced auxiliary feedwater pump (s) to OPERABLE status within 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> '
or be in at least IDT 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 HOT SHUTDOWN within the following 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />. Theprovisions ofSpecification 3.0.4 are not applicable for entry into Mode 3for the turbine driven pungp.
With Train B and Train C motor driven pumps, or any three auxiliary feedwater pumps c.
inoperable, be is at least HOT STANDBY within 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and in HOT SHUTDOWN within the follo' ring 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />.
h d.
With four auxilary feedwater pumps inoperable, immediately initiate corrective action to restore at fest one auxiliary feedwater pump to OPERABLE status as soon as possible.
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SOUTH TEXAS - UNITS I &2 3/47-4 Unit 1 - Amendment No. 58,67 l
Unit 2 - Amendment No. 56 1
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ST-HL-AE-5443 Page 2 of 2 PLANT SYSTEMS I
SURVEILLANCE REQUIREMENTS 4.7.1.2.1 Each auxiliary feedwater pump shall be demonstrated OPERABLE:
At least once per 31 days on a STAGGERED TEST BASIS by:
a.
1)
Verifying that each motc,r-driven pump develops a discharge pressure of greater than or equal to 1454 psig at a flow ofgreater than or equal to 500 gpm; l
2)
Verifying that the steam turbine-driven pump develops a discharge pressure of l
greater than or equal to 1454 psig at a flow ofgreater than or equal to 500 gpm j
when sessadar a the secondary steam supply pressure isipeater than 1000 psig l
within 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> nl(ter entrj. 3:;=:hirr =f';r!T^"!:: 4.0.4 = =t l
- pp!*r"- f:- ^ y into MODE 3; 3)
Verifying that each non-automatic valve in the flow path that is not locked, sealed, or otherwise secured in position is in its correct position; and 4)
Verifying that each automatic valve in the flow path is in the correct position l
whenever the Auxiliary Feedwater System is placed in automatic control or when above 10% RATED THERMAL POWER.
b.
At least once per 18 months during shutdown by:
1)
Verifying that each automatic valve in the flow path actuates to its correct position upon receipt of an Auxiliary Feedwater Actuation test signal, and 2)
Verifying that each auxiliary feedwater pump starts as designed automatically upon receipt of an Auxiliary Feedwater Actuation test signal.
3)
Verifying that each auxiliary feedwater flow regulating valve limits the flow to each steams generator between 550 gpm and 675 gpm.
4.7.1.2.2 An Auxiliary feedwater flow path to each steam generator shall be demonstrated OPERABLE following each COLD SHUTDOWN of greater than 30 days prior to entering MODE 2 by verifying normal flow to each steam generator.
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SOlflB TEXAS -UNITS 1 & 2-3/47-5 Unit 1 - Amendment No. 58,61 Unit 2 - Amendment No. 50
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