It’s very common to see 240V appliances running without a neutral, and I would expect that your outlets have the white wire serving as a ground, with the ground wire simply not connected. It’s also common (in unincorporated areas) to see the common (white) and ground shared a bus bar inside the panel. Sounds like your electrician had 4 conductor wire and a 3 conductor outlet. This is easily checked with a VOM, and if hooked up correctly will work fine with your bandsaw…assuming it’s wired correctly to the 10-30 plug. The saw can get by on a smaller circuit, but will be just fine on the larger one. To check the outlet, measure voltage across each hot to the ground (should be 120V), then it will also measure 240V across the 2 hots. If that’s not the case, you will need to fix the outlet.
-- I long for the days when Coke was a cola, and a joint was a bad place to be (Merle Haggard)
