A 240-volt line runs between the floor joists directly above my basement shop on the way to an outlet upstairs behind the stove. I have a gas stove, so I could re-route the line entirely and put the outlet down in the shop. But it got me curious. What about two or three outlets on the same 240-volt line? I'm fairly familiar with 120-volt wiring conventions (I recently finished 1300 sq. ft. of basement and ran multiple circuits without a hitch and passed inspection) but I don't know what's kosher with 240.