3.8 ELECTRICAL POWER SYSTEMS Flashcards
What is the LCO and APPLICABILITY of Technical Specification 3.8.1, AC Sources-Operating?
LCO:
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; and
B. Three diesel generators (DGs).
APPLICABILITY: 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.
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What are the one hour, or less, actions associated with Technical Specification 3.8.1, AC Sources-Operating?
NOTE********
LCO 3.0.4.b is not applicable to DGs
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Condition A: One required offsite circuit inoperable - Perform SR 3.8.1.1 OPERABLE required offsite circuit - 1 hour
Condition B: One required DG inoperable - Perform SR 3.8.1.1 OPERABLE required offsite circuit - 1 hour
Condition G: Three or more required AC sources inoperable - Enter LCO 3.0.3 - Immediately
What is the LCO and APPLICABILITY of Technical Specification 3.8.2, AC Sources-Shutdown?
LCO:
The following AC electrical power sources shall be OPERABLE:
A. One qualified circuit between the offsite transmission network and the onsite Class 1E AC electrical power distribution subsystem(s) required by LCO 3.8.8, “Distribution Systems-Shutdown”:
B. One diesel generator (DG) capable of supplying one division of the Division 1 or 2 onsite Class 1E AC electrical power distribution subsystem(s) required by LCO 3.8.8; and
C. One qualified circuit, other than the circuit in LCO 3.8.2.a, between the offsite transmission network and the Division 3 onsite Class 1E electrical power distribution subsystem, or the Division 3 DG capable of supplying the Division 3 onsite Class 1E AC electrical power distribution subsystem, when the Division 3 onsite Class 1E electrical power distribution subsystem is required by LCO 3.8.8.
APPLICABILITY:
MODES 4 and 5,
During movement of recently irradiated fuel assemblies in the primary containment or fuel handling building.
What are the one hour, or less, actions associated with Technical Specification 3.8.2, AC Sources-Shutdown?
NOTE**
LCO 3.0.3 is not applicable
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Condition A:
LCO Item A is not met -
NOTE*
Enter applicable Condition and Required Actions of LCO 3.8.8, when any required division is de-energized as a result of condition A.
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-Declare required feature(s) with no offsite power available from required circuit inoperable - Immediately
OR
Suspend CORE ALTERATIONS - Immediately
AND
Suspend movement of recently irradiated fuel assemblies in the primary containment and fuel handling building - Immediately
AND
Initiate action to suspend operations with a potential for draining the reactor vessel (OPDRVs) - Immediately
AND
Initiate action to restore required offsite power circuit to OPERABLE status - Immediately
Condition B:
LCO item B not met -
Suspend CORE ALTERATIONS - Immediately
AND
Suspend movement of recently irradiated fuel assemblies in the primary containment and fuel handling building - Immediately
AND
Initiate action to suspend operations with a potential for draining the reactor vessel (OPDRVs) - Immediately
AND
Initiate action to restore required offsite power circuit to OPERABLE status - Immediately
What is the LCO and APPLICABILITY of Technical Specification 3.8.3, Diesel Fuel Oil, Lube Oil, and Starting Air?
LCO: The stored diesel fuel oil, lube oil, and starting air subsystems shall be within limits for each required diesel generator (DG).
APPLICABILITY: When associated DG is required to be OPERABLE.
What are the one hour, or less, actions associated with Technical Specification 3.8.3, Diesel Fuel Oil, Lube Oil, and Starting Air?
Condition F: One or more DGs with diesel fuel oil, lube oil, or starting air subsystem not within limits for reasons other than condition A, B, C, D, or E - Declare the associated DG inoperable - Immediately
What is the LCO and APPLICABILITY of Technical Specification 3.8.4, DC Sources-Operating?
LCO: The Division 1, Division 2, and Division 3 DC electrical power subsystems shall be OPERABLE.
APPLICABILITY: MODES 1, 2, and 3.
What are the one hour, or less, actions associated with Technical Specification 3.8.4, DC Sources-Operating?
Condition B: Division 3 DC electrical power subsystems inoperable - Declare High Pressure Core Spray System Inoperable - Immediately
What is the LCO and APPLICABILITY of Technical Specification 3.8.5, DC Sources-Shutdown?
LCO:
The following DC electrical power subsystems shall be OPERABLE:
A. One Class 1E DC electrical power subsystems capable of supplying one division of the Division 1 or 2 onsite Class 1E electrical power distribution subsystem(s) required by LCO 3.8.8, “Distribution Systems-Shutdown”;
B. One Class 1E battery or battery charger, other than the DC electrical power subsystem in LCO 3.8.5.a, capable of supplying the remaining Division 1 or Division 2 onsite Class 1E DC electrical power distribution subsystem when required by LCO 3.8.8; and
C. The Division 3 DC electrical power subsystem capable of supplying the Division 3 onsite Class 1E DC electrical power distribution subsystem, when the Division 3 onsite Class 1E DC electrical power distribution subsystem is required by LCO 3.8.8.
APPLICABILITY:
MODES 4 and 5,
During movement of recently irradiated fuel assemblies in the primary containment or fuel handling building.
What are the one hour, or less, actions associated with Technical Specification 3.8.5, DC Sources-Shutdown?
Condition A:
One or more required DC electrical power subsystems inoperable -
Declare affected required feature(s) inoperable - Immediately
OR
Suspend CORE ALTERATIONS - Immediately
AND
Suspend movement of recently irradiated fuel assemblies in the primary containment and fuel handling building - Immediately
AND
Initiate action to suspend operations with a potential for draining the reactor vessel (OPDRVs) - Immediately
AND
Initiate action to restore required DC electrical power subsystems to OPERABLE status - Immediately
What is the LCO and APPLICABILITY of Technical Specification 3.8.6, Battery Cell Parameters?
LCO: Battery cell parameters for the Division 1, 2, and 3 batteries shall be within limits.
APPLICABILITY: When associated DC electrical power subsystems are required to be OPERABLE.
What are the one hour, or less, actions associated with Technical Specification 3.8.6, Batter Cell Parameters?
NOTE
Separate Condition entry is allowed for each battery.
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Condition A: One or more batteries with one or more battery cell parameters not within Table 3.8.6-1 Category C limits - Verify pilot cell’s electrolyte level and float voltage meet Table 3.8.6-1 Category C - 1 hour
What is the LCO and APPLICABILITY of Technical Specification 3.8.7, Distribution Systems-Operating?
LCO: Division 1, Division 2, and Division 3 AC and DC electrical power distribution subsystems shall be OPERABLE.
APPLICABILITY: MODES 1, 2, and 3.
NOTE
Division 3 electrical power distribution subsystems are not required to be OPERABLE when High Pressure Core Spray System is inoperable.
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What are the one hour, or less, actions associated with Technical Specification 3.8.7, Distribution Systems-Operating?
Condition D: One or more Division 3 AC of DC electrical power distribution subsystems inoperable-Declare High Pressure Core Spray System inoperable- Immediately
Condition E: Tow or more divisions with inoperable distribution subsystems that result in a loss of function-Enter LCO 3.0.3 - Immediately
What is the LCO and APPLICABILITY of Technical Specification 3.8.8, Distribution Systems-Shutdown?
LCO: The necessary portions of the Division 1, Division 2, and Division 3 AC and DC electrical power distribution subsystems shall be OPERABLE to support equipment required to be OPERABLE.
APPLICABILITY:
MODES 4 and 5,
During movement of recently irradiated fuel assemblies in the primary containment or fuel handling building.
