Tech Specs Flashcards
Per TS 3.9.4, SDC and Coolant Circulation - High Water Level, how many SDC Loops shall be operable and in-operation?
ONE
Applicability: M6 with water level >23’ above flange
TS LCO 3.9.1 requires Boron to hold RX Core subcritical under cold conditions. What system is credited to maintain those conditions?
CVCS
Per TS LCO 3.9.2, if we have 1 required SRM Inoperable, what are the actions (Condition A)?
A.1. Suspend Core Alts (Immediately) AND
A.2. Suspend Positive RX Adds (Immediately)
Per TS LCO 3.9.2, how may SU range monitors shall be OPERABLE?
2
Applicability: Mode 6
* Enter 3.3.12 BDAS if made inoperable by SRM’s
U2 in M6. SDC “A” OOS. Using SDC “B”.
What level must be maintained in RCS?
> 23’ above flange
Need 2 SDC Loops Operable if <23’
ENG reported fuel cavity is 135’. What is done if we only have 1 SDC Loop?
Add 2’ of water is option, but can’t keep moving fuel (3.9.5 to 3.9.4)
When is TS LCO 3.9.3 CTMT Penetrations Applicable? And what is required if 1 or more penetrations are NOT in required status?
During CORE ALTS
A.1. Suspend CORE ALTS (Immediately) AND
A.2. Suspend Fuel Movement (Immediately)
Can you move FUEL <23’ above the flange?
YES
- Only when fuel being moved are NEW and not Irradiated (only INITIAL Load)
Per TLCO 3.9.100, how long SHALL the RX be subcritical prior to fuel movement?
100 Hours
- If LESS, Suspend all OPS Immediately
If 1 FBEV’s is NON-FUNCTIONAL during movement of irradiated fuel assemblies in the Fuel Bldg, what is required, and how long can you do it (TLCO 3.9.104)?
A.1. Verify Functional FBEVS train capable of being powered from emergency source (Immediately) AND
A.2. Restore FBEVS to Functional (7 Days)
Why do we maintain SOLUBLE BORON in SFP?
SDM
< .95 kEFF
Why do TS LCO 3.9.4 and 3.9.5 allow for off-load to continue with stopping SDC < 1 hour out of 8?
Permits Core Mapping, Core Alts near Hot Legs and/or ST’s
Per TS LCO 3.3.8 (CPIAS) what is it the backup system to during Modes 1,2,3 and 4?
CIAS
Closes CTMT purge valves in event of HI RAD levels from primary leak in CTMT
Per TS LCO 3.3.4, Condition D, If the Unit is at 80%, RTCB’s have problems on Channels 1 and 3 what do we do?
Open 1 and 3 Immediately
100% power, RCS PRESS HI Channel A FAILED, BUT No RTCB’s are open, what does TS LCO 3.3.4 require?
OPEN or OPEN Redundant (in 1 hour) AND OPEN the Affected RTCB (48 Hours)
Per TS LCO 3.3.9, Unit is in M1, and we lose CREFAS Train A, what is required? If a B train CREFAS RAD Monitor was taken OOS, what is then required?
NOTHING
A.1. Place CREFS train in essential (1 hour)
Per TS LCO 3.3.3, 2 CEACS shall be Operable based on what reason?
Because a single RSPT is used to provide RSPT input to 1 CEAC in all 4 channels, this LCO requires BOTH CEAC’s to be Operable in each channel (prevent required trip from occurring)
Per TS LCO 3.9.4, if SDC Loop requirements are NOT met, how long do we have to CLOSE all CTMT penetrations that have DIRECT atmosphere access?
4 Hours
If 1 CEAC is INOPERABLE (TS LCO 3.3.3, Condition A), How often do we Verify indicated position of each FS or PSCEA is < 6.6” of all CEA’s in its group?
Once per 4 hours (SR 3.1.5.1)
When is LCO 3.2.1 applicable, and what is the specified limit in the COLR?
Mode 1 with RTP > 20%
- 1 KW/FT
* Cond. A = If COLSS > Power Op Limit LHR, we have 1 Hour to restore within Limits
Per TS LCO 3.1.5, all FSCEA’s shall be OPERABLE, and aligned 6.6” within group in Mode 1 and 2. What is requirement if only 1 CEA position indicator channel is OPERABLE for 1 CEA per Group?
B.1 Restore at least 2 position indicator channels to OPERABLE in 6 Hours, OR
B.2. Verify CEA Groups with INOPERABLE position are fully withdrawn/inserted, while maintaining 3.1.6/7/8 every 6 Hours AND Once per 12 Hours
What RCS DNB parameters are required for TS LCO 3.4.1 and when are they applicable?
- PZR Pressure 2130 - 2295 PSIA (M1 and M2)
- RCS Tcold within figure 3.4.1-1 (M1 and M2 with Keff >1)
- RCS Total Flow >155.8E^6 lbm/hour (M1)
Per TS LCO 3.4.1, if PZR Pressure went to as low as 2100# for 30 minutes, what is required Condition?
3.4.1 Condition C - C.1 Restore parameters to within limits in 2 hours (MET and Exit LCO)
If not restored - D.1 Be in M3 in 6 Hours
Per TS LCO 3.4.2 (RCS Minimum Temp for Criticality), what shall each RCS Loop temperature be greater or equal to, and when is it applicable?
Greater than or Equal to 545F (M1 and M2 with Keff >1)
Condition A - if NOT within Limit - A.1 Be in M3 in 30 Minutes
Per TS LCO 3.1.1 (SDM - RX Trip Breakers Open), if it’s discovered that SDM is NOT GREATER or EQUAL to the value in the COLR, what are ACTIONS in M3?
3.1.1 Condition A - A.1 Initiate Boration to restore SDM within limits…IN 15 Minutes
Figure 3.1.1-1 (SDM %deltaK/K vs Tcold)
