ML20058G176

Proposed Tech Specs Extending AOT for Tdafwp from 72 Hours to 168 Hours to Facilitate Augmented Test Program & Evaluation

ML20058G176
Person / Time
Site:	South Texas
Issue date:	12/06/1993
From:	HOUSTON LIGHTING & POWER CO.
To:
Shared Package
ML20058G164	List: ML20058G176 ST-HL-AE-4646, Application for Amend to License NPF-46,proposing Changes to TS 3.7.1.2. to Extend AOT for Tdafwp from 72 Hours to 168 Hours to Facilitate Augmented Test Program & Evaluation
References
NUDOCS 9312090121
Download: ML20058G176 (3)

Text

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ATTACHMENT 3 ,

PROPOSED TECHNICAL SPECIFICATION CHANGES 4

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XISC-93\93-340.001 *~

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TSI -133

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/ 1 i PLANT SYSTD45 TSI -031 '

FEB 18 1993 1 AUXILIARY FEEDWATER SYSTEM $' -

T LI!illltiG_00HD1 TION F0fLDF1RATJON 0%  :

3. 7.1. 2 At least four independent steam generator auxiliary feedwater pumps %QttNs./ .

and associated flow paths shall be OPERABLE with:  ;

a. Three motor-driven auxiliary feedwater pumps, each capable of being powered from separate emergency busses, and I

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.

ACTION: I

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. l i 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 /> ,

grY 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 />.

A ).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 [

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  ;

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c. With Train D turbine-driven auxiliary feedwater pump ~

inoperable, restore the inoperable pump to OPERABLE status 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 hours.

• These actions are applicable for Unit 1 only during the restart of Unit 1 from the 1993 Unit 1 Outage.

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