ML20236X719

Proposed Tech Specs Page 3/4.9-5 Re Suppl to EDG for Allowed Outage Time

ML20236X719
Person / Time
Site:	Pilgrim
Issue date:	07/31/1998
From:	BOSTON EDISON CO.
To:
Shared Package
ML20236X715	List: ML20236X713 ML20236X719
References
NUDOCS 9808100210
Download: ML20236X719 (2)

Text

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ATTACHMENT B NEW TECHNICAL SPECIFICATION PAGE 3/4.9-5 l

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Revision 177 Ameruiment No. 42, 6 !, !!,120; 4244&h 3/4.9-5 9808100210 DR 980731

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LIMITING CONDITION FOR OPERATION SURVEILLANCE REQUIREMENTS 3.0 AUXILIARY ELECTR! CAL SYSTEM (Cont) 4.9 AUXILIARY ELECTRICAL SYSTEM (Cont)

B. Operation with inocerable Eauipment (Cont) made or found to be inoperable for any reason, continued reactor operation is permissible in accordance with Specification 3.5 F:

a. For 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br /> provided the startup transformer and both offsite 345 kV transmission lines are available and capable of automatically supplying auxiliary power to the emergency 4160 volt buses.

b. For 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br /> provided a l

transmission line and associated shutdown transformer are available and capable of automatically supplying auxiliary power in the emergency 4160 volt buses.

5. From and after the date that one of the 125 or 250 volt battery systems is made or found to be inoperable for any r6ason, continued reactor operation is permissible during the succeeding three days within electrical safety considerations, provided repair work is initiated in the most expeditious manner to return the failed ,

component to an operable state, and '

Specification 3.5.F is satisfied.

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6. With the emergency bus voltage less than 3958.SV but above 3878.7V(excluding transients) during normal operation, transfer the safety related buses to the diesel generators.

If grid voltage continues to degrade be in at least Hot Shutdown within the next 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> and in Cold Shutdown within the follow;ng 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> unless i the grid conditions improve. l l

Revision 177 Amendment No. 4h4!, SS,120,127,151, 3/4.9-5 i

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