Electrical

Question 1

Max load on main generator

Answer 1

400A

Question 2

max load on APU gen to 30000’

Answer 2

400A

Question 3

max load on APU gen above 30000’

Answer 3

300A

Question 4

Max battery temp

Answer 4

70C

Question 5

How long do the emergency lights supply power for and to what?

Answer 5

15 minutes to all interior and exterior lights on battery power

Question 6

In an electrical emergency (loss of all 5 generators), what will still be available to the crew?

Answer 6

Both RMUs, the EICAS and the ISIS / Sby inst

Question 7

Which battery supplies power to the APU for start?

Answer 7

Battery 2

Question 8

What do the two 24v Ni-Cad batteries do?

Answer 8

Supply essential load if all 5 generators fail for 40 mins

Question 9

What does the one lead-acid backup battery do?

Answer 9

Provides stabilised power for GCUs protective function