0POP03-RC-0100 RCS Vacuum Fill

Question 1

• 0POP03-RC-0100 RCS Vacuum Fill*
• • *

LHSI pumps may be used to supplement charging when filling the RCS. When are LHSI pumps secured?

Answer 1

Cold Cal PZR Level ≥ 50%

Question 2

• 0POP03-RC-0100 RCS Vacuum Fill*
• • *

Who is on the RCS vacuum fill team?

Answer 2

Team Leader

Mid Loop Coordinator

2 Plant Operators

I&C

Mechanical

Chemistry

HP

Question 3

• 0POP03-RC-0100 RCS Vacuum Fill*
• • *

Why should RCP seals be maintained during RCS Vacuum Fill?

Answer 3

Minimize possibility of loss of vacuum through seals

Prevents RCS crud from migrating to RCP seals

Question 4

• 0POP03-RC-0100 RCS Vacuum Fill*
• • *

How many source range NIs must be OPERABLE for vacuum filling the RCS?

Answer 4

≥ 2 SR Detectors (Visual)
(N31, N32, N45, N46)

Need N31 or N32 for audible count rate

Question 5

• 0POP03-RC-0100 RCS Vacuum Fill*
• • *

What radiation detectors must be OPERABLE for vacuum filling the RCS?

Answer 5

RT-8010

RT-8011

RT-8012/8013

RT-8050/8051

Question 6

• 0POP03-RC-0100 RCS Vacuum Fill*
• • *

What is the RHR flowrate limit when water level is reduced to < +6 inches (32’ 9”)?

Answer 6

1600 gpm / RHR Train

3000 gpm total

Question 7

• 0POP03-RC-0100 RCS Vacuum Fill*
• • *

How long can a LHSI pump be placed on recirc?

Answer 7

2 hrs

Question 8

• 0POP03-RC-0100 RCS Vacuum Fill*
• • *

What is charging flow limited to during RCS vacuum fill?

Answer 8

200 gpm

Question 9

• 0POP03-RC-0100 RCS Vacuum Fill*
• • *

What is the letdown flowrate limit when diverting flow to the RHUT?

Answer 9

250 gpm

Question 10

• 0POP03-RC-0100 RCS Vacuum Fill*
• • *

When is the slinky removed?

Answer 10

Cold Cal PZR Level ≥ 10%

Question 11

• 0POP03-RC-0100 RCS Vacuum Fill*
• • *

What is the RCS pressure limit in order to vent the RCS to atmosphere?

Answer 11

≤ 50 psig

Note:
50 psig is also the overall pressure limit when conducting a RCS vacuum fill

Question 12

• 0POP03-RC-0100 RCS Vacuum Fill*
• • *

While in reduced inventory and conducting a vacuum fill, what are your immediate actions if RHR is lost?

Answer 12

• *Break Vacuum Immediately**
• Open RC-0512 Vacuum Rig Vacuum Bkr Valve*

Question 13

• 0POP03-RC-0100 RCS Vacuum Fill*
• • *

What equipment must be removed from service prior to vacuum fill?

Answer 13

1 CCP

PDP

PZR Heaters

ALL HHSI

SI Accumulator Discharge valves SHUT
AND
Breaker OPEN

BTRS

Flush Water for RT8039 (CVCS Failed Fuel Monitor)

Question 14

• 0POP03-RC-0100 RCS Vacuum Fill*
• • *

With regards to RHR concerns, what is the max vacuum allowed during RCS vacuum fill?

Answer 14

22.3” Hg

Vacuum should be > 20” Hg for 15 mins to minimize O₂

Question 15

• 0POP03-RC-0100 RCS Vacuum Fill*
• • *

What should RCS temperature be limited to when performing a RCS Vacuum Fill?

Answer 15

< 140 ˚F