SAMGs/SAG/EDMGs (RQ-C-4724)

Question 1

What is the difference between the scenarios under which DIS and H2 recombiners were designed to be utilized

Answer 1

• DIS is for beyond design basis

- H2 recombiners were sized for design basis accidents

Question 2

Why is SG level the highest priority during the SAMGs

Answer 2

• SG level allows you to cool the core and prevent creep failures of SG tubes

Question 3

When does the TSC assume control during SAMGs

Answer 3

• After they have performed SAG diagnostic steps and are ready to implement a strategy

Question 4

Which SAG procedure is a direct entry and does not require the diagnostic steps to be performed

Answer 4

• SAG-10 (SFP)

Question 5

What task is assigned to the most experienced/senior AEO during SAMGs

Answer 5

• Reset and startup of both units TDAFP

Question 6

What tasks are covered by EDM-001

Answer 6

• Assume command and control

- Trip the reactor locally, start TDAFPs, damage assessment

Question 7

What tasks are covered by EDM-002

Answer 7

• Use fire water as secondary heat sink, flood containment, or add water to RWST
• Depressurization of SGs and starting of DIS from EDG room

Question 8

What tasks are covered by EDM-003

Answer 8

• Used to prioritize strategies by the EOF

Question 9

When are SAMGs used vs EDM

Answer 9

• SAMGs are for when the core is already damaged

- EDMs are used for post 9/11 or other extensive damage to site

Question 10

Does the Main Generator need to be tripped for deluge to automatically actuate

Answer 10

• YES

Question 11

Does the UAT need to be tripped for deluge to automatically actuate

Answer 11

• NO