Got you. Can somebody also tell me why do we use the "GEN 1 LINE" pb. I know it is a smoke drill in the avionics bay, but I read some other place that the drill is just the extract and blower PB put to over ride. Not sure when to use which drill, and not sure what exactly the gen 1 line pb does.
Its essentially the same as EMER ELEC but you keep all your fuel pumps. The elec distribution is the same as it is in EMER ELEC except that in smoke configuration the fuel pumps are connected upstream of the GEN 1 line connector. Proc sheds roughly 75% of electrical equipment.
All explained in DSC 24 10 30 30 p19 of the new Airbuspeak book.