With the screwy "two-row" bus arrangement in Zinsco plug-in panelboards—that was fine for 120/240V 3-wire systems, but for 3ø, the bus bars literally had to be "braided" to match 3ø up with the needed two rows of bus stubs. If you ever saw one, it was unforgettably weird looking. What a mess.
[This message has been edited by Bjarney (edited 10-01-2003).]
