CHW

Question 1

What is the purpose of the Containment Chill Water System?

Answer 1

To provide 55°F chilled water to containment loads

Question 2

What is the Containment Chill Water head tank normal makeup source?

Answer 2

Demin Water

Question 3

What will happen if you select DISABLE on the HMI?

Answer 3

It will shutdown the entire system

Question 4

What is the emergency make up water source to the CHW head tank?

Answer 4

NESW

Question 5

What is the normal power supply to Unit 1 Containment Chill Water System?

Answer 5

Transformer 10 cross-tied through U2 Switchgear

Question 6

What is the normal power supply to Unit 2 Containment Chill Water System?

Answer 6

Transformer 10

Question 7

What temp band do we try to maintain in lower containment?

Answer 7

Between 60°F and 120°F

Question 8

What temp band do we maintain in upper containment?

Answer 8

between 60°F and 100°F

Question 9

Which color light requires an operator to don a SCBA if he needs to enter?

Answer 9

Red Light (High Level)

Question 10

What pressure must be maintained in containment according to LCO 3.6.4 (Containment Pressure)? When is this applicable?

Answer 10

≥ -1.5#
≤ +0.3#
(Modes 1-4)

Question 11

What must be done per TS LCO 3.6.4 (Containment pressure), Condition A, if pressure is outside the required band?

Answer 11

Restore containment pressure to within limits within 1 hour

Question 12

When is the plate and frame hx rated for 100% of the system load?

Answer 12

When lake temperature (NESW) is less than 53 degrees