ML041130122

Tech Spec Pages for License Amendments 166 & 166 Extensions of the Complete Times for Restoring an Inoperable Diesel Generator from 7 Days to 14 Days

ML041130122
Person / Time
Site:	Diablo Canyon
Issue date:	04/20/2004
From:	NRC/NRR/DLPM
To:
Khanna M, NRR/DLPM/EMCB, 415-2150
Shared Package
ML041140088	List: ML041130122
References
TAC MB9146, TAC MB9147
Download: ML041130122 (2)

Text

AC Sources - Operating 3.8.1 3.8 ELECTRICAL POWER SYSTEMS 3.8.1 AC Sources - Operating LCO 3.8.1 The following AC electrical sources shall be OPERABLE:

a.

Two qualified circuits between the offsite transmission network and the onsite Class 1E AC Electrical Power Distribution System; and

b.

Three diesel generators (DGs) capable of supplying the onsite Class I E power distribution subsystem(s); and

c.

Two supply trains of the diesel fuel oil (DFO) transfer system.

APPLICABILITY:

MODES 1, 2, 3, and 4.

ACTIONS CONDITION REQUIRED ACTION COMPLETION TIME A.

One required offsite circuit A.1 Perform SR 3.8.1.1 for 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> inoperable.

required OPERABLE AND offsite circuit.

Once per 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> thereafter.

AND A.2 Restore required offsite 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> circuit to OPERABLE AND status.

14 days from discovery of failure to meet LCO.

(continued)

I DIABLO CANYON - UNITS 1 & 2 3.8-1 Unit 1 -Amendment No. 435 166 Unit 2 - Amendment No. 135 167

AC Sources - Operating 3.8.1 ACTIONS (continued)

CONDITION R

REQUIRED ACTION I COMPLETION TIME B. One DG inoperable.

B.1 Perform SR 3.8.1.1 for the required offsite circuit(s).

AND NOTE---

In MODE 1, 2, and 3, TDAFW pump is considered a required redundant feature.

1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> B.2 Declare required feature(s) supported by the inoperable DG inoperable when its required redundant feature(s) is inoperable.

AND B.3.1 Determine OPERABLE DG(s) is not inoperable due to common cause failure.

OR B.3.2 Perform SR 3.8.1.2 for OPERABLE DG(s).

AND Once per 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> thereafter.

4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> from discovery of Condition B concurrent with inoperability of redundant required feature(s).

24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> 24 hours 14 days from discovery of failure to meet LCO.

AND B.4 Restore DG to OPERABLE status.

I (continued)

DIABLO CANYON - UNITS 1 & 2 3.8-2 Unit I - Amendment No. 4-5 166 Unit 2 - Amendment No. 435 167