TS 3.3 Control Element Assembly Calculators (CEACs)

Question 1

LCO 3.3.3 Two CEACs shall be OPERABLE in each CPC channel

APPLICABILITY : ___

ACTIONS: ___

Answer 1

APPLICABILITY: M1 and M2

ACTIONS: NOTE
* Separate condition entry is allowed for each CPC channel

Question 2

LCO 3.3.3 CONDITION

A. One CEAC inoperable in one or more CPC channels.

Answer 2

A.1 Declare affected CPC channel(s) inoperable (Immediately)
OR
A.2.1 Perform SR 3.1.5.1 (Once per 4 hours)
AND
A.2.2 Restore CEAC to OPERABLE status (7 days)

Question 3

What is SR 3.1.5.1?

Answer 3

Verify indicated position of each FS and PSCEA is < 6.6” of all other CEAs in its group

Question 4

LCO 3.3.3 CONDITION
B. Required Action and associated Completion Time of Condition A not met.
OR
Both CEACs inoperable in one or more CPC channels.

Answer 4

B.1 Declare affected CPC channel(s) inoperable (Immediately)
OR
B.2.1 Verify DNBR per LCO 3.2.4 is met (4 hours)
AND
B.2.2 Verify all FS and PSCEAs are fully withdrawn, except SR 3.1.5.3 (G5 to 127.5”)(4 hours)
AND
B2.3 Verify RSPT/CEAC Inoperable addressable constant in each affected CPC is set to indicate both are inoperable (4 hour)
AND
B2.4 Verify CEDMCS in Standby (4 hours)
AND
B.2.5 Perform SR 3.1.5.1 (Once per 4 hours)
AND
B.2.6 Disable RPCB system (4 hours)

Question 5

LCO 3.3.3 CONDITION

C. Required action and associated completion time of Condition B not met

Answer 5

C.1 Be in M3 (6 hours)