JPM Sim-d — Raise Level in 21 SI Accumulator
Sim | RO/SRO | 006 A4.07 (4.4/4.4)
Location: Simulator
Time-Critical: No
Alternate Path: No
Estimated Time: 10 minutes
Initial Conditions:
- The Unit 2 is operating at 100% power with no major equipment out of service.
Initiating Cue:
- You are the Reactor Operator.
- RAISE level in 21 SI Accumulator Tank to at least 60% IAW Section 5.2 of S2.OP-SO.SJ-0002, Accumulator Operations, using 21 SI pump.
- Your evaluator will respond to all alarms not related to your task.
Time-Critical: No
Alternate Path: No
Estimated Time: 10 minutes
Initial Conditions:
- The Unit 2 is operating at 100% power with no major equipment out of service.
Initiating Cue:
- You are the Reactor Operator.
- RAISE level in 21 SI Accumulator Tank to at least 60% IAW Section 5.2 of S2.OP-SO.SJ-0002, Accumulator Operations, using 21 SI pump.
- Your evaluator will respond to all alarms not related to your task.
Task Standard:
Raises level in 21 SI Accumulator to at least 60% or as directed IAW S2.OP-SO.SJ-0002.
Raises level in 21 SI Accumulator to at least 60% or as directed IAW S2.OP-SO.SJ-0002.
▶ Show Critical Steps & Key Actions
| Step | Critical Element | Standard |
|---|---|---|
| 5.2.1 | Ensure ALL RCS Cold Leg Temperatures >312°F OR Rx Vessel Head removed | Determines RCS Cold Leg temperatures are >312°F and continues on. |
| 5.2.2 | If RCS pressure <2000 psig, ENSURE CLOSED 21SJ134 | Determines RCS is >2000 psig; marks step as N/A. |
| 5.2.3 * | START 21 Safety Injection Pump | Depresses START pushbutton for 21 SI Pump. |
| 5.2.4 * | OPEN 2SJ53, 21 SI Pump Discharge Test Line Valve | Depresses OPEN pushbutton for 2SJ53. |
| 5.2.5 * | OPEN 2SJ123, Test Line to CVCS HUT | Depresses OPEN pushbutton for 2SJ123. |
| 5.2.6 * | OPEN 21SJ20, Accumulator Fill valve | Depresses OPEN pushbutton for 21SJ20. CAUTION: Do NOT cross-tie Accumulators at any time OPERABILITY is required. |
| 5.2.7 * | CLOSE 21SJ20 when desired level reached (at least 60%) | Depresses CLOSE pushbutton for 21SJ20 when level is at least 60%. |
| 5.2.9-11 | Close 2SJ53, Close 2SJ123, Stop 21 SI Pump | Restores system: closes test line valves and stops 21 SI Pump. |
Key Decision Point:
This is a straight-path (non-alternate-path) JPM testing systematic procedure execution. Key knowledge: RCS Cold Leg temperatures must be >312°F to use 21 SI Pump for accumulator makeup (Section 5.2). If RCS pressure were <2000 psig, 21SJ134 (Cold Leg Discharge) must be closed first to prevent uncontrolled injection. CAUTION: closing 21SJ134 may require entry into TSAS 3.5.2. CAUTION: do NOT cross-tie accumulators at any time OPERABILITY is required. A maximum of one SI Pump OR one Centrifugal Charging Pump shall be OPERABLE whenever the temperature of one or more RCS cold legs is less than or equal to 312°F.
This is a straight-path (non-alternate-path) JPM testing systematic procedure execution. Key knowledge: RCS Cold Leg temperatures must be >312°F to use 21 SI Pump for accumulator makeup (Section 5.2). If RCS pressure were <2000 psig, 21SJ134 (Cold Leg Discharge) must be closed first to prevent uncontrolled injection. CAUTION: closing 21SJ134 may require entry into TSAS 3.5.2. CAUTION: do NOT cross-tie accumulators at any time OPERABILITY is required. A maximum of one SI Pump OR one Centrifugal Charging Pump shall be OPERABLE whenever the temperature of one or more RCS cold legs is less than or equal to 312°F.
Ref: S2.OP-SO.SJ-0002 (R24) | Task: N0060040101 | K/A: 006 A4.07 — Ability to manually operate and/or monitor in the control room: ECCS pumps and valves | Source: New | View JPM PDF
Connections
- Related systems: ECCS
- Related procedures: S2.OP-SO.SJ-0002 — Accumulator Operations
- Related tech specs: TS 3/4.5 — ECCS
- Related exam: 2020 NRC Operating Exam