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LCO > 3.1 "Reactivity Control Systems" > Flashcards

3.1 "Reactivity Control Systems" Flashcards

1
Q

LCO 3.1.1 title

A

Shutdown Margin

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2
Q

LCO 3.1.1 requirement

A

SDM shall be w/in limits specified in the COLR

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3
Q

LCO 3.1.1 applicability

A

Modes 3-5

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4
Q

LCO 3.1.1 required actions < 1 hour

A

SDM not w/in limit, then initiate boration to restore SDM to w/in limit w/in 15 minutes

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5
Q

LCO 3.1.4 title

A

Control Rod Alignment

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6
Q

LCO 3.1.4 requirement

A

All rods shall be operable and aligned to w/in 8” of all other rods in their respective group, and the rod position deviation alarm shall be operable

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7
Q

LCO 3.1.4 applicability

A

Modes 1 and 2

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8
Q

LCO 3.1.4 required actions < 1 hour

A
  • 1 channel of rod position indication inoperable for 1 or more rods, then perform rod position verification w/in 15 minutes following any rod motion in that group
  • Rod position deviation alarm inoperable, then perform rod position verification w/in 15 minutes of any control rod movement
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9
Q

LCO 3.1.5 title

A

Shutdown and Part-Length Control Rod Group Insertion Limits

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10
Q

LCO 3.1.5 requirement

A

All shutdown and part-length rod groups shall be withdrawn to >= 128”

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11
Q

LCO 3.1.5 applicability

A
  • Mode 1
  • Mode 2 with any reg rod withdrawn above 5”
  • Not applicable while performing rod exercise test
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12
Q

LCO 3.1.5 required actions < 1 hour

A

1 or more shutdown or part-length rods not w/in limit, then immediately declare affected rod(s) inoperable and enter applicable conditions and required actions of LCO 3.1.4

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13
Q

LCO 3.1.6 title

A

Regulating Rod Group Position Limits

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14
Q

LCO 3.1.6 requirement

A

PDIL and CROOS alarm circuits shall be operable and the reg rod groups shall be limited to the withdrawal sequence, overlap, and insertion limits specified in the COLR

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15
Q

LCO 3.1.6 applicability

A
  • Modes 1 and 2

- Not applicable while performing rod exercise test

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16
Q

LCO 3.1.6 required actions < 1 hour

A

NONE

LCO (9 decks)

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