Interesting to hear CASA require 3phase power to operate their testing apparartus. That will mean they will have to keep to the larger airfields as few small country airports have a 3 phase outlet situated in the terminal or office of the local flying school. Those that have a LAME workshop nearby probably will so keep your ear to the ground for phone enquiries as to the availability of 3phase power because that will probably mean that a visit is on the cards.