Fission Product Barriers

Question 1

Fuel Clad Barrier LOSS
AND
Inadequate Heat Removal

Answer 1

> 1200F REP CETs

Question 2

Fuel Clad Barrier LOSS
AND
CTMT Radiation/RCS Activity

Answer 2

1. Containment Radiation
   RU-148/149 - 2 e5 mR/hr
2. DE I-131 - 300 uCi/gm

Question 3

Fuel Clad Barrier POTENTIAL LOSS
AND
RCS/SGT Leakage

Answer 3

< 21% plenum

Question 4

Fuel Clad Barrier POTENTIAL LOSS
AND
Inadequate Heat Removal

Answer 4

1. > 700F REP CETs
2. < 24F subcooled

Question 5

RCS Barrier LOSS
AND
Leakage

Answer 5

Automatic or Manual SIAS needed from RCS or SGT leakage

Question 6

RCS Barrier LOSS
AND
CTMT Radiation/RCS Activity

Answer 6

Containment Radiation
RU-148/149 - 5 e4 mR/hr

Question 7

RCS Barrier POTENTIAL LOSS
AND
Leakage

Answer 7

1. If you need a 3rd charging pump with letdown isolated
2. > 200F Subcooling with pressure rising

Question 8

RCS Barrier POTENTIAL LOSS
AND
Inadequate Heat Removal

Answer 8

< 24F Subcooling

Question 9

Containment Barrier LOSS
AND
Leakage

Answer 9

Ruptured SG is Faulted outside of containment

Question 10

Containment Barrier LOSS
AND
Containment Integrity

Answer 10

1. CIAS is required but not met
2. Indication of leakage outside of containment

Question 11

Containment Barrier POTENTIAL LOSS
AND
Inadequate Heat Removal

Answer 11

> 1200F REP CETs and the FRP is not working within 15 minutes

Question 12

Containment Barrier POTENTIAL LOSS
AND
CTMT Radiation

Answer 12

RU-148/149 6 e6 mR/hr

Question 13

Containment Barrier POTENTIAL LOSS
AND
CTMT Integrity

Answer 13

1. > 60 psig
2. > 4.9% H2
3. > 8.5 psig with inadequate spray flow for > 15 minutes