Hello Eric,
  I remember a couple of months ago there was discussion
on
 the proper cable for a BA440 power supply (normal North
 American three prong power cord but with a notch where it
 plugs in to the power supply).  Was there a consensus on
 the designation (and any place in the US that sell them)? 
 From the sound of this, it might be like the power
cords needed 
for our DEC Alpha AXP 3000  -500 and  -800  They also needed
a standard ISO computer power cord  BUT with a notch or groove
in it, that isn't in the standard ISO computer power cord, for the
connection in the back of the machine. Luckily though, with the Alphas,
underneath in front of the machine, where the power came from the back
of the machine to where it actually plugs into the power supply, a
non-notched cord could be plugged in. Then eventually we finally came
up with one of the notched cords. But, before you ask, we can't spare
our
one and only.
                                                      Jan