3.6 CONTAINMENT SYSTEMS Flashcards
What is the LCO and APPLICABILITY of Technical Specification 3.6.1.1, Primary Containment-Operating?
LCO: Primary containment shall be OPERABLE
APPLICABILITY: MODES 1, 2, and 3
What are the one hour, or less, actions associated with Technical Specification 3.6.1.1, Primary Containment-Operating?
NOTE************
Applicable Conditions and Required Actions are not required to be entered for the Inclined Fuel Transfer System (IFTS) penetration for up to 20 hours per 12 month period when the IFTS blind flange is unbolted.
*****************
Condition A: Primary Containment inoperable - Restore primary containment to OPERABLE status - 1 hour
What is the LCO and APPLICABILITY of Technical Specification 3.6.1.2, Primary Containment Air Locks?
LCO: Two primary containment air locks shall be OPERABLE.
APPLICABILITY:
MODES 1, 2, and 3
During movement of recently irradiated fuel assemblies in the primary containment
During operations with a potential for draining the reactor vessel (OPDRVS)
What are the one hour, or less, actions associated with Technical Specification 3.6.1.2, Primary Containment Air Locks?
NOTES************
1. Entry and exit is permissible to perform repairs of the affected air lock components
2. Separate Condition entry is allowed for each air lock
3. Enter applicable Conditions and Required Actions of LCO 3.6.1.1, “Primary Containment-Operating,” when air lock leakage results in exceeding overall containment leakage rate acceptance criteria in MODES 1, 2, and 3
*******************
Condition A: One of more primary containment air locks with one primary containment air lock door inoperable -
**NOTE
1. Required Actions A.1, A.2, and A.3 are not applicable if both doors in the same air lock are inoperable and Condition C is entered.
2. Entry and exit is permissible for 7 days under administrative controls if both air locks are inoperable.
**
Verify the OPERABLE door is closed in the affected air lock - 1 hour
Condition B: One or more primary containment air locks with primary containment air lock interlock mechanism inoperable -
**NOTE
1. Required Actions B.1, B.2, and B.3 are not applicable if both doors in the same air lock are inoperable and Condition C is entered.
2. Entry and exit is permissible under the control of a dedicated individual.
**
Verify an Operable door is closed in the affected air lock - 1 hour
Condition C: One or more primary containment air locks inoperable for reasons other than Condition A or B - Initiate action to evaluate primary containment overall leakage rate per LCO 3.6.1.1, using current air lock test results - Immediately AND Verify a door is closed in the affected air lock - 1 hour
What is the LCO and APPLICABILITY of Technical Specification 3.6.1.3, Primary Containment Isolation Valves (PCIVs)?
LCO: Each PCIV, except containment vacuum breakers, shall be OPERABLE.
APPLICABILITY:
MODES 1, 2, and 3
When associated instrumentation is required to be OPERABLE per LCO 3.3.6.1, “Primary Containment and Drywell Isolation Instrumentation.”
What are the one hour, or less, actions associated with Technical Specification 3.6.1.3, Primary Containment Isolation Valves (PCIVs)?
NOTES**********1. Penetration flow paths except for the inboard 42 inch purge valve penetration flow paths may be unisolated intermittently under administrative controls.
2. Separate Condition entry is allowed for each penetration flow path.
3. Enter applicable Conditions and Required Actions for systems made inoperable by PCIVs.
4. Enter applicable Conditions and Required Actions of LCO 3.6.1.1, “Primary Containment-Operating,” when PCIV leakage results in exceeding overall containment leakage rate acceptance criteria in MODES 1, 2, and 3.
*****************
Condition B: One or more penetration flow paths with two PCIVs inoperable except due to leakage not within limit - Isolate the affected penetration flow path by use of at least one closed and deactivated automatic valve, or blind flange - 1 hour
What is the LCO and APPLICABILITY of Technical Specification 3.6.1.4, Primary Containment Pressure?
LCO: Primary containment to secondary containment differential pressure shall be greater than or equal to -0.1 psid and less than or equal to 1.0 psid.
APPLICABILITY: MODES 1, 2, and 3
What are the one hour, or less, actions associated with Technical Specification 3.6.1.4, Primary Containment Pressure?
Condition A: Primary containment to secondary containment differential pressure not within limits - Restore primary containment to secondary containment differential pressure to within limits - 1 hour
What is the LCO and APPLICABILITY of Technical Specification 3.6.1.5, Primary Containment Air Temperature?
LCO: Primary containment average air temperature shall be less than or equal to 95F.
APPLICABILITY: MODES 1, 2, and 3.
What are the one hour, or less, actions associated with Technical Specification 3.6.1.5, Primary Containment Air Temperature?
NONE
What is the LCO and APPLICABILITY of Technical Specification 3.6.1.6, Low-Low Set (LLS) Valves?
LCO: The LLS function of six safety/relief valves shall be OPERABLE.
APPLICABILITY: MODES 1, 2, and 3
What are the one hour, or less, actions associated with Technical Specification 3.6.1.6, Low-Low Set (LLS) Valves?
NONE
What is the LCO and APPLICABILITY of Technical Specification 3.6.1.7, Residual Heat Removal (RHR) Containment Spray System?
LCO: Two RHR containment spray subsystems shall be OPERABLE.
APPLICABILITY: MODES 1, 2, and 3.
What are the one hour, or less, actions associated with Technical Specification 3.6.1.7, Residual Heat Removal (RHR) Containment Spray System?
NONE
What is the LCO and APPLICABILITY of Technical Specification 3.6.1.8, Feedwater Leakage Control System (FWLCS)?
LCO: Two FWLC subsystems shall be OPERABLE.
APPLICABILITY: MODES 1, 2, and 3.
What are the one hour, or less, actions associated with Technical Specification 3.6.1.8, Feedwater Leakage Control System (FWLCS)?
NONE
What is the LCO and APPLICABILITY of Technical Specification 3.6.1.9, Main Steam Shutoff Valves?
LCO: The Main Steam Shutoff Valves shall be OPERABLE.
APPLICABILITY: MODES 1, 2, and 3.
What are the one hour, or less, actions associated with Technical Specification 3.6.1.9, Main Steam Shutoff Valves?
NONE
What is the LCO and APPLICABILITY of Technical Specification 3.6.1.10, Primary Containment-Shutdown?
LCO: Primary Containment shall be OPERABLE.
APPLICABILITY:
During movement of recently irradiated fuel assemblies in the primary containment.
During operations with a potential for draining the reactor vessel (OPDRVS).
What are the one hour, or less, actions associated with Technical Specification 3.6.1.10, Primary Containment-Shutdown?
Condition A: Primary containment inoperable - Suspend movement of recently irradiated fuel assemblies in the primary containment - Immediately AND Initiate action to suspend OPDRVs - Immediately
What is the LCO and APPLICABILITY of Technical Specification 3.6.1.11, Containment Vacuum Breakers?
LCO: Three containment vacuum breakers shall be OPERABLE and four containment vacuum breakers shall be closed.
APPLICABILITY:
MODES 1, 2, and 3,
During movement of recently irradiated fuel assemblies in the primary containment.
During operations with a potential for draining the reactor vessel (OPDRVs)