BATT MASTER SWITCH

Question 1

What does the BAT OFF/ON switch do?

Answer 1

Connect the MAIN BAT DIR BUS & the APU BAT DIR BUS to the BAT BUS

Question 2

What does the BAT BUS power?

Answer 2

The BAT BUS provides detection (Fire & Cargo smoke detection)

The Emergency BUS provides protection (puts out fire)

Question 3

What are the MAIN & APU BATT rated at?

Answer 3

MAIN BAT:
24V DC / 17 ampere-hours

APU BAT:
24V DC / 43 ampere-hours

Question 4

How are the BAT’s charged?

Answer 4

They have their own charger, which monitors and controls the charging rate and prevents overheating

Question 5

How do you know if the BAT’s are being charged?

Answer 5

You will get white charger message on the DC electrical page next to the BAT’s

Question 6

Where are the BAT’s located?

Answer 6

NAIN:
Noah’s compartment next to the TRU’s

APU:
aft equipment bay

Question 7

How long can you stay only on BAT power? And why?

Answer 7

5 minutes, because ED1 & ED2 cooling FAN runs on AC power, without AC power you’ll overheat the screen

Question 8

How long should the BAT switch be in the ON position b4 conducting a fire test?

Answer 8

30 seconds