ML022040171
| ML022040171 | |
| Person / Time | |
|---|---|
| Site: | Grand Gulf  |
| Issue date: | 07/16/2002 |
| From: | NRC/NRR/DLPM/LPD4 |
| To: | Entergy Operations |
| References | |
| TAC MB3973 | |
| Download: ML022040171 (3) | |
Text
AC Sources-Operating 3.8.1 3.8 ELECTRICAL POWER SYSTEMS 3.8.1 AC Sources-Operating LCO
3.8.1 APPLICABILITY
The following AC electrical power sources shall be OPERABLE:
- a.
Two qualified circuits between the offsite transmission network and the onsite Class 1E AC Electric Power Distribution System;
- b.
Three diesel generators (DGs); and
- c.
Division 1 and Division 2 automatic load sequencers.
MODES 1, 2, and 3.
NOTE ---------------------------
Division 3 AC electrical power sources are not required to be OPERABLE when High Pressure Core Spray System is inoperable.
ACTIONS CONDITION REQUIRED ACTION COMPLETION TIME A.
One required offsite A.1 Perform SR 3.8.1.1 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> circuit inoperable for for OPERABLE required reasons other than offsite circuit.
AND Condition F.
Once per 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> thereafter AND (continued)
Amendment No.
120 GRAND GULF 3.8-1
AC Sources-Operating 3.8.1 ACTIONS CONDITION REQUIRED ACT-ON COMPLETION TIME A.
(continued)
A.2 Restore required 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> offsite circuit to OPERABLE status.
AND 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> from discovery of two divisions with no offsite power AND 17 days from discovery of failure to meet LCO B.
One required DG B.1 Perform SR 3.8.11, 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> inoperable for reasons for OPERABLE required other than offsite circuit(s).
AND Condition F.
Once per 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> thereafter AND B.2 Declare required 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> from feature(s),
supported discovery of by the inoperable DG, Condition B inoperable when the concurrent with redundant required inoperability feature(s) are of redundant inoperable, required feature(s)
AND (continued)
Amendment No.
+219, 151 GRAND GULF 3.8-2
AC Sources-Operating 3.8.1 ACTIONS CONDITION REQUIRED ACTION COMPLETION TIME B.
(continued)
B.3.1 Determine OPERABLE 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> DG(s) are not inoperable due to common cause failure.
OR B.3,2 Perform SR 3.8.1.2 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> for OPERABLE DG(s).
AND B.4 Restore required DG 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> from to OPERABLE status.
discovery of an inoperable Division 3 DG AND 14 days AND 17 days from discovery of failure to meet LCO C.
Two required offsite C.1 Declare required 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> from circuits inoperable, feature(s) inoperable discovery of when the redundant Condition C required feature(s) concurrent with are inoperable.
inoperability of redundant required feature(s)
AND C.2 Restore one required 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> offsite circuit to OPERABLE status.
(continued)
Amendment No.
4-2, 151 GRAND GULF