VENTILATION - AUX AND FUEL HANDLING BUILDING

Question 1

What triggers the Pen Cooling fans to swap air supply?

Answer 1

Pen Cooling fans swap air supply based on inlet temperature sensed in the Turbine Building Air Shaft Temperature.

Question 2

What starts AH-E-15A/B (NS Area) fans?

Answer 2

AH-E-15A/B fans start on ES Block 4.

Question 3

What happens to AH-E-8A (SFP Area) fans during an ES?

Answer 3

AH-E-8A fans are load shed on ES, while AH-E-8B remains unaffected.

Question 4

What does RM-G-9 (SFP Bridge) trigger?

Answer 4

RM-G-9 trips AH-E-10 and closes FHB dampers.

Question 5

What happens when AH-E-14s are lost?

Answer 5

Loss of AH-E-14s trips AH-E-10, AH-E-11, and AH-E-20A/B (Control Building Exhaust).

Question 6

What causes ESF Ventilation inlet fire dampers (AH-D-64/74) to close?

Answer 6

AH-D-64/74 dampers close automatically on high temperature and high combustible vapors.

Question 7

What happens when AH-E-14B/D trips?

Answer 7

A trip of AH-E-14B/D causes AH-E-10 and AH-E-11 to trip.