40AO-9ZZ01 Emergency Boration Flashcards

1
Q

During 40AO-9ZZ01 Emergency Boration, what is Rx trip criteria?

A
  • Adequate SDM does NOT exist

- LD not is service

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2
Q

What is the Tech Spec basis/ requirement for emergency boration if SDM is lost?

A
  • ≥ 26 gpm boration flow

- > 4000 ppm boration source

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3
Q

If SDM is lost how long do you have to begin emergency boration?

A
  • 15 min TCA

- 30 min TCA if BAMP filter bypass used (extra time for AO)

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4
Q

What is the preferred mode of force for emergency boration?

A
  • CH pumps
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5
Q

What is the minimum level in the RWT to use the normal CH suction path (532)

A
  • > 73%

- RWT level alarm comes in at same time

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6
Q

What is the minimum RWT level when CH pumps are aligned to their alternate suction? (327)

A
  • < 50% - 2 CH pumps
  • < 46% - 1 CH pump
  • < 44% - all CH pump in PTL
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7
Q

What is the preferred order of emergency boration paths if CH pump suction aligned to 532?

A
  • Gravity flow through 536
  • BAMP flow through 514
  • Bypass BAMP filter through 164
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8
Q

What is the minimum RWT level for CH pumps if PC Clean Up is aligned to RWT?

A
  • 3 CH pumps - Not allowed
  • 2 CH pumps - > 92%
  • 1 CH pump - > 83%
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9
Q

What levels/ volume in the SFP is credited for Emergency Boration?

A
  • 137’ 4”
  • 133’ 6”
  • 33,500 gallons
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10
Q

When would you use HPSI pump for boration?

A
  • CH pumps not available
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11
Q

What is the minimum flow if borating with a HPSI pump?

A
  • Use 1 injection vlv
  • ≥ 75 gpm (sq root extractor)
  • ≥ 225 gpm if boration > 1 hour
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12
Q

When would you use LPSI pump for boration?

A
  • HPSI not available
  • RCS < 220 psia
  • AOP does NOT depressurize for LPSI
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13
Q

How long do you have to STOP and inadvertent dilution?

A
  • 15 minutes mode 3-5

- 30 minutes mode 6

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14
Q

With a concern about boron concentration, how long is considered an “extended period of time” for for an IX to be isolated?

A
  • > 72 hours
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15
Q

When would an IX be required to be flushed prior to being placed in service?

A
  • > 20 ppm boron difference
  • > 72 hours
  • initial flushes
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