ML20134B980

Proposed Tech Specs Re Inverter/Battery Charger Mod

ML20134B980
Person / Time
Site:	Comanche Peak
Issue date:	09/19/1996
From:	TEXAS UTILITIES ELECTRIC CO. (TU ELECTRIC)
To:
Shared Package
ML20134B979	List: ML20134B980 TXX-9646, Provides Response to RAI & Editorial Correction for License Amend Request 96-005 Re Inverter/Battery Charger Mod
References
NUDOCS 9609240206
Download: ML20134B980 (2)

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ATTACHMENT TO TXX 96469 AFFECTED TECHNICAL SPECIFICATION PAGE (NUREG 1468)

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4 9609240206 960919 '7 PDR 7, P ADOCK 05000445 PDR y _ ,, _..-____w --,_,- ,, r ,,,

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ONSITE POWER DISTRIBUTION LIMITING ColeITION FOR OPERATION (Continued)

APPLICABILITY: MODES 1, 2, 3, and 4.

l ACTION:

a. With one of the required trains of A.C. emergency busses not fully energized, reenergize the trains within 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> or be in at least HOT STAN08Y 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 />.

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b. With one A.Cuinstrument bus or two A.C. instrument busses (consisting '

of one'J .WeJTrotection channel and one u Wital bus of the same L4A. I train) deenergized, reenergize the A.C. instrument bus (se' within ,

l 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 STAN08Y 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 />.

c.

Withone_AC._instrumentbusortwoA.C.ingumentbusses(consisting'l4&

"protecticn channel and one ... J"Gital bus of the same of one@ing train) operat with the associated inverter (sf"not connected with the

. l O.C. source (s), or operating with the' inverter (s) not supplying the  !

A.C. instrument bus (but with the instrument bus energized from its '

associated bypass distribution source energize the A.C. instrument  !

bus (ses) from its associated inverte nected to its associated 0.C. '

bus within 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 STA28Y 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 />.

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d. With one D.C. bus not energized from its associated station battery,'

reenergize the D.C. bus from its associated station battery 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 H0T STA E8Y 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 4.8.3.1 The specified busses shall be determined energized in the required manner at least once per 7 days by verifying correct breaker alignment and indicated voltage on the busses.

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COMANCHE PEAK - UNITS 1 AND 2 3/4 8-16

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