ML20197A721

Proposed Tech Specs Pages,Revising TS 4.6.2.1 to Extend Surveillance Interval of Containment Spray Sys Nozzle Air Flow Test from Five Years to Ten Years

ML20197A721
Person / Time
Site:	South Texas
Issue date:	12/17/1997
From:	HOUSTON LIGHTING & POWER CO.
To:
Shared Package
ML20197A715	List: ML20197A721 NOC-AE-000042, Application for Amends to Licenses NPF-76 & NPF-80,revising TS 4.6.2.1 to Extend Surveillance Interval of Containment Spray Sys Nozzle Air Flow Test from Five Years to Ten Years. W/Ser & Proposed TS Changes
References
NUDOCS 9712230160
Download: ML20197A721 (2)

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NITACilMENT 3 f

. PROPOSED CilANGES TO APPENDIX A, l

TECllNICAL SPECIFICATIONS, OF FACILITY OPERATING LICENSES NPF.76 AND NPF-80,

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SOUTil TEXAS PROJECT UNITS 1 & 2 Revision to: 4.6.2.1  !

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l (Of(JAINMENT SYSTfM$

3/4.6.2 Ofj2L51UR11AT191lJND COOLING SYSTfMS IDlilAINMENT SPRAL51$113 1IMillNG COND1T10N FOR OP[ RAT 10f4 3.6.1 Three independent Containment Spray Systems shall be OPERARLE with ca:h Syray System capable of taking suction from the RWST and tr:nsferring suction to the containment sump.

APPLICABJLL11: H0 DES 1, 2, 3, and 4.

ACTION:

With one Containment Spray System inoperabit., restore the inoperable Spray System to OPERABLE status within 7 days or be in at least il0T STANDBY within l the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />; restore the inoperable Spray System to OPERABLE status within the next 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br /> or be 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 />.

SURVElllANCf RE0VIREMENTS 4.6.2.1 Each Containment Spray System shhll be demonstrated OPERABLE:

a. At least once per 31 days by verifying that each valve (manual, power-operated, or automatic) in the flow path that is not locked, scaled, or otherwise secured in position, is in its correct position;

b. By verifying o'n a STAGGERED TEST BASIS, that on recirculation flow, l each pump develops a differential pressure of greater than or equal to 283 psid when tested pursuant to Specification 4.0.S;

c. At least once per 18 months during shutdown, by:

1) Verifying that each automatic valve in the flow path actuates to its correct position on a Containment Pressure liigh 3 test signal, and

2) Verifying that each spray pump starts automatically on a Containment Pressure Itigh 3 test signal coincident with a sequencer start si nal,

d. At least once perV5 years by performing an air or smoke flow test through each spray header and verifying each spray nozzle is unobstructed.

50 Vill TEXAS - UNITS 1 & 2 3/4 6-14 Unit .1 - Amendment No, 59 Unit ? - Amendment No. 47

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