First, thanks to everyone that responded.
I have already tested the voltage for each hot line, so I am sure as to
which line (the "B" line) is the Wild Leg. Since this is the first
time I have come into contact with a Delta system (although I have done
enough electrical wiring in the home to feel comfortable around
electrical installations), I just needed to make sure I wasn't
operating outside of safety limits.
It is interesting to me how three-phase comes into the warehouse, and
at the main breaker (just after the meter), two hot lines are split
off, so that 2 hots (A, B) plus a Neutral go to one 120/220v panel and
three hots (A, B, C) and a Neutral go to another 120/208/120v panel. Of
course, there is also a main grounding cable running off to a water
pipe as well.
I don't think there will be any problem with my utility, as the
warehouse is rated commercial/residential, and if there ever is a
problem...well, I'll just go and adjust the Delta system.
But, I do have a follow up question: In both my circuit panels, the
ground connector bar is not connected to the Neutral Connector bar. I
was reading up on my electricity configurations and I saw mentioned how
the Main Circuit Panel should have it's Grounding Connecter Bar
connected to the Neutral Connector Bar (and to NOT do this in any
subpanels). Is this correct? While the wiring in this warehouse is
grounded to metal electrical boxes in some places and in other places
there are grounding copper lines to electrical conduit that is attached
to the Main Circuit Panel. The 3-phase circuit panel does NOT have the
Grounding Bar connected to the Neutral Bar.