ML20058G176
| ML20058G176 | |
| Person / Time | |
|---|---|
| Site: | South Texas  |
| Issue date: | 12/06/1993 |
| From: | HOUSTON LIGHTING & POWER CO. |
| To: | |
| Shared Package | |
| ML20058G164 | List: |
| References | |
| NUDOCS 9312090121 | |
| Download: ML20058G176 (3) | |
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ATTACHMENT 3 4
PROPOSED TECHNICAL SPECIFICATION CHANGES
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PLANT SYSTD45 TSI -031 FEB 18 1993 1
AUXILIARY FEEDWATER SYSTEM
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LI!illltiG_00HD1 TION F0fLDF1RATJON 0%
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- 3. 7.1. 2 At least four independent steam generator auxiliary feedwater pumps and associated flow paths shall be OPERABLE with:
a.
Three motor-driven auxiliary feedwater pumps, each capable of being I
powered from separate emergency busses, and b.
One steam turbine-driven auxiliary feedwater pump capable of being i
powered from an OPERABLE steam supply system.
APPLICABILITY: 140 DES 1, 2, and 3.
I ACTION:
a.
With the Train A motor-driven auxiliary feedwater pump inoperable, j
initiate corrective actions to restore the pump to OPERABLE status as soon as possible. The provisions of Specification 4.0.4 are not j
applicable.
l b.
With any of the following combinations of auxiliary feedwater pumps inoperable.
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1)
Train B or Train C motor-driven pump, 2)
Train D turbine-driven pump and any one motor-driven pump, i
3)
Train A and either Train B or Train C motor-driven pump, or 4)
Train D turbine-driven pump Restore the affected 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 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 /> Y
gr 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 />.
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).y ith Train B and Train C motor driven pumps, or any three auxiliary feedwater pumps inoperable, be in 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 following 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />.
e.jk With four auxiliary feedwater pumps inoperable, immediately initiate corrective action to restore at least one auxiliary feedwater pump to OPERABLE status as soon as possible.
SUPXEILLA!KILREQUIREMEi!IS 4.7.1.2.1 Each auxiliary feedwater pump shall be demonstrated OPERABLE:
a.
At least once per 31 days _on a STAGGERED TEST BASIS by:
1)
Verifying that each motor-driven pump develops a discharge pressure of greater than or equal to 1454 psig at a flow of
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greater than or equal to 540 gpm; 2)
Verifying that the steam turbine-driven pump develops a discharge pressure of greater than or equal to 1454 psig at a flow of greater than or equal to 540 gpm when the secondary steam supply pressure is greater than 1000 psig. The provisions of Specification 4.0.4 are not ap;)licable for entry into MODE 3; i
SOUTH TEXAS - UNITS 1 & 2 3/4 7-4 1
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J INSERT A
c.
With Train D turbine-driven auxiliary feedwater pump inoperable, restore the inoperable pump to OPERABLE status
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within 168 hours0.00194 days <br />0.0467 hours <br />2.777778e-4 weeks <br />6.3924e-5 months <br /> or be in at least HOT STANDBY within the
.i 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 l
These actions are applicable for Unit 1 only hours.
during the restart of Unit 1 from the 1993 Unit 1 Outage.
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