[c-nsp] Cat 6509

[Voll, Scott]

I'm upgrading my 6509 and would like to know a couple of things.

I currently have 1800W power supplies.  If I put them on 220v would that
make them a 2500w?

I have bought 2500 watt power supplies.  Can I pull out one of my 1800w
power supplies and put in one of the 2500 watt power supplies then do
the other one (hot swap style)?  

Is the Fan Blade hot swappable?

Thanks

Scott