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Technical Specifications > 3.4 REATOR COOLANT SYSTEM (RCS) > Flashcards

3.4 REATOR COOLANT SYSTEM (RCS) Flashcards

1
Q

What is the LCO and APPLICABILITY of Technical Specification 3.4.1, Recirculation Loops Operating?

A

LCO:
Either:
A. Two recirculation loops shall be in operation with matched flows.
OR
B. One recirculation loop shall be in operation with:
1. Thermal power less than or equal to 2500 Mwt;
2. LCO 3.2.1 AVERAGE PLANAR LINEAR HEAT GENERATION RATE (APLHGR) limits modified for single recirculation loop operation as specified in the COLR;
3. LCO 3.2.2 MINIMUM CRITICAL POWER RATIO (MCPR) limits modified for single recirculation loop operation as specified in the COLR;
4. LCO 3.2.3 LINEAR HEAT GENERATION RATE (LHGR) limits modified for single recirculation loop operation as specified in the COLR;
5. LCO 3.3.1.1. Reactor Protection System (RPS) Instrumentation, Function 2.b (Average Power Range Monitors Flow Biased Simulated Thermal Power-High) Allowable Value of Table 3.3.1.1. reset for single loop operation.

APPLICABILITY: MODES 1 and 2

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2
Q

What are the one hour, or less, actions associated with Technical Specification 3.4.1, Recirculation Loops Operating?

A

Condition B: Thermal power greater than 2500 Mwt during single recirculation loop operation - Reduce thermal power to less than or equal to 2500 Mwt - 1 hour

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3
Q

What is the LCO and APPLICABILITY of Technical Specification 3.4.2, Flow Control Valves (FCVs)?

A

LCO: A recirculation loop FCV shall be OPERABLE in each operating recirculation loop.

APPLICABILITY: MODES 1 and 2

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4
Q

What are the one hour, or less, actions associated with Technical Specification 3.4.2, Flow Control Valves (FCVs)?

A

NONE

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5
Q

What is the LCO and APPLICABILITY of Technical Specification 3.4.3, Jet Pumps?

A

LCO: All jet pumps shall be operable.

APPLICABILITY: MODES 1 and 2

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6
Q

What are the one hour, or less, actions associated with Technical Specification 3.4.3, Jet Pumps?

A

NONE

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7
Q

What is the LCO and APPLICABILITY of Technical Specification 3.4.4, Safety/Relief Valves (S/RVs)?

A

LCO:
The safety function of seven S/RVs shall be OPERABLE.
AND
The relief function of six additional S/RVs shall be OPERABLE.

APPLICABILITY: MODES 1, 2, and 3

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8
Q

What are the one hour, or less, actions associated with Technical Specification 3.4.4, Safety/Relief Valves (SRVs)?

A

NONE

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9
Q

What is the LCO and APPLICABILITY of Technical Specification 3.4.5, RCS Operational LEAKAGE?

A

LCO:
RCS operational LEAKAGE shall be limited to:
A. No pressure boundary LEAKAGE;
B. Less than or equal to 5 gpm unidentified LEAKAGE;
C. Less than or equal to 30 gpm total LEAKAGE averaged over the previous 24 hour period; and
D. Less than or equal to 2 gpm increase in unidentified LEAKAGE within the previous 24 hour period in MODE 1.

APPLICABILITY: MODES 1, 2, and 3.

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10
Q

What are the one hour, or less, actions associated with Technical Specification 3.4.5, RCS Operational LEAKAGE?

A

NONE

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11
Q

What is the LCO and APPLICABILITY of Technical Specification 3.4.6, RCS Pressure Isolation Valve (PIV) Leakage?

A

LCO: The leakage from each RCS PIV shall be within limit.

APPLICABILITY:
MODES 1 and 2
MODE 3, except valves in the residual heat removal (RHR) shutdown cooling flow path when in, or during the transition to or from, the shutdown cooling mode of operation.

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12
Q

What are the one hour, or less, actions associated with Technical Specification 3.4.6, RCS Pressure Isolation Valve (PIV) Leakage?

A

NONE

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13
Q

What is the LCO and APPLICABILITY of Technical Specification 3.4.7, RCS Leakage Detection Instrumentation?

A

LCO:
The following RCS leakage detection instrumentation shall be OPERABLE:
A. Drywell floor drain sump monitoring system;
B. One channel of either drywell atmospheric particulate monitoring system or drywell atmospheric gaseous monitoring system; and
C. Upper drywell air cooler condensate flow rate monitoring system.

APPLICABILITY: MODES 1, 2, and 3

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14
Q

What are the one hour, or less, actions associated with Technical Specification 3.4.7, RCS Leakage Detection Instrumentation?

A

Condition G: All required leakage detection systems inoperable - Enter LCO 3.0.3 -Immediately

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15
Q

What is the LCO and APPLICABILITY of Technical Specification 3.4.8, RCS Specific Activity?

A

LCO: The DOSE EQUIVALENT I-131 specific activity of the reactor coolant shall be less than or equal to 0.2 microcuries/gram.

APPLICABILITY:
MODE 1
MODES 2 and 3 with any main steam line not isolated

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16
Q

What are the one hour, or less, actions associated with Technical Specification 3.4.8, RCS Specific Activity?

A

NONE

17
Q

What is the LCO and APPLICABILITY of Technical Specification 3.4.9, Residual Heat Removal (RHR) Shutdown Cooling System-Hot Shutdown?

A

LCO: Two RHR shutdown cooling subsystems shall be OPERABLE, and, with no recirculation pump in operation, at least one RHR shutdown cooling subsystem shall be in operation.

  • NOTES******
    1. Both RHR shutdown cooling subsystems and recirculation pumps may be removed from operation for up to 2 hours per 8 hour period.
    2. One RHR shutdown cooling subsystem may be inoperable for up to 2 hours for performance of surveillances.

APPLICABILITY: MODE 3 with reactor steam dome pressure less than the RHR cut in permissive pressure.

18
Q

What are the one hour, or less, actions associated with Technical Specification 3.4.9, Residual Heat Removal (RHR) Shutdown Cooling System-Hot Shutdown?

A

Condition A:
One or two RHR shutdown cooling subsystems inoperable - Initiate action to restore RHR shutdown cooling subsystem(s) to OPERABLE status - Immediately
AND Verify an alternate method of decay heat removal is available for each inoperable RHR shutdown cooling subsystem - 1 hour

Condition B:
No RHR shutdown cooling subsystem in operation
AND No recirculation pump in operation - Initiate action to restore one RHR shutdown cooling subsystem or one recirculation pump to operation - Immediately
AND Verify reactor coolant recirculation by an alternate method - (1 hour from discovery of no reactor coolant circulation AND Once per 12 hours thereafter) AND Monitor reactor coolant temperature and pressure - Once per hour

19
Q

What is the LCO and APPLICABILITY of Technical Specification 3.4.10, Residual Heat Removal (RHR) Shutdown Cooling System-Cold Shutdown?

A

LCO: Two RHR shutdown cooling subsystems shall be OPERABLE, and, with no recirculation pump in operation, at least one RHR shutdown cooling subsystem shall be in operation.

  • NOTES******
    1. Both RHR shutdown cooling subsystems and recirculation pumps may be removed from operation for up to 2 hours per 8 hour period.
    2. One RHR shutdown cooling subsystem may be inoperable for up to 2 hours for performance of surveillances.
    3. Both RHR shutdown cooling subsystems and recirculation pumps may be removed from operation during inservice leak and hydrostatic testing.

APPLICABILITY: MODE 4, when heat losses to ambient are not sufficient to maintain average reactor coolant temperature less than or equal to 200F.

20
Q

What are the one hour, or less, actions associated with Technical Specification 3.4.10, Residual Heat Removal (RHR) Shutdown Cooling System-Cold Shutdown?

A

Condition A: One or two RHR shutdown cooling subsystems inoperable - Verify an alternate method of decay heat removal is available for each inoperable RHR shutdown cooling subsystem - (1 hour AND Once per 24 hours thereafter)

Condition B: No RHR shutdown cooling subsystem in operation AND No recirculation pump in operation - Verify reactor coolant recirculation by an alternate method - (1 hour from discovery of no reactor coolant circulation AND Once per 12 hours thereafter) AND Monitor reactor coolant temperature and pressure - Once per hour

21
Q

What is the LCO and APPLICABILITY of Technical Specification 3.4.11, RCS Pressure and Temperature (P/T) Limits?

A

LCO: RCS pressure, RCS temperature, RCS heatup and cooldown rates, and the recirculation loop temperature requirements shall be maintained within limits.

APPLICABILITY: At all times

22
Q

What are the one hour, or less, actions associated with Technical Specification 3.4.11, RCS Pressure and Temperature (P/T) Limits?

A

Condition A: Requirements of the LCO not met in MODES 1, 2, and 3 - Restore parameter(s) to within limits - 30 minutes

Condition B: Requirements of the LCO not met in other than MODES 1, 2, and 3 - Initiate action to restore parameter(s) to within limits - Immediately AND Determine RCS is acceptable for operation - Prior to entering mode 2 or 3

23
Q

What is the LCO and APPLICABILITY of Technical Specification 3.4.12, Reactor Steam Dome Pressure?

A

LCO: The reactor steam dome pressure shall be less than or equal to 1045 psig.

APPLICABILITY: MODES 1 and 2

24
Q

What are the one hour, or less, actions associated with Technical Specification 3.4.12, Reactor Steam Dome Pressure?

A

Condition A: Reactor steam dome pressure not within limit - Restore reactor steam dome pressure to within limit - 15 minutes

Technical Specifications (15 decks)

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