Really a Dryer Outlet should only be used to power a Dryer.
It wouldn't be wise for you to do this without first consulting a professional electrician. You might get yourself into some difficulties that could burn out your saw motor, cause a fire and/or kill yourself if you don't know what you are doing.
It is unlikely the saw's motor will be rated for 25 to 30 amps and 240 voltage like a clothes dryer.
Additional Info: The saw motor is likely to require less than the 20-30 amps rating of the breaker protecting the Dryer circuit, or that the circuit is fused for. If this is the case then the saw would not be protected adequately. If the saw motor were to stall - or for some reason start to burn out - it would take 20-30 amps of overload before the fuse or circuit breaker would 'Pop'. You could get round this by installing a fuse box with two fuses (one for each of the 'hot' wires) in line with the power cord that connects to the saw and select fuses that were correct for the saw, maybe 10-15 amps If you are not going to use the dryer circuit for a dryer any more, change out the circuit breaker for a lower amp rating.
A dryer outlet is simply a 30amp 220V outlet. It may have three or four prongs and will have 10 gauge wire feeding it. You can plug any 220 volt equipment that is rated at 30 amps into this outlet. If you plug in something rated at a higher current it will trip the breaker sooner or later. If the motor is rated at substantially less than 30 amps you do risk burning up the wiring on the saw although most of them have overload protection that senses when the motor gets too hot. There are a lot of table saws, air compressors, welding equipment, and other shop equipment that this type of outlet will be fine for. I do suggest that you read the info on the motor rating plate and know what you are doing when you put the cord on the table saw. You do not want to confuse the hots and neutral. That would burn up your equipment very quickly.
Electrical appliances "draw" current; the current doesn't force itself into the appliance. That's why a 60-watt light bulb, which draws a fraction of an amp, doesn't explode when it's energized on a 15-amp circuit. And that's why you can have a number of electrical appliances connected to the same 15-amp circuit, with each getting what it needs, and none of them being overpowered.
In general, table saws sold in the US run on 110-120 VAC, and draw less than 15 amps. In a few cases, heavy duty (contractor-type) saws can pull close to 20 amps. None of these saws require anything like a dryer circuit. All can be plugged into a standard grounded 110-120 VAC outlet, a regular wall outlet. If the building wiring is properly done, a 15-amp saw will run all day plugged in anywhere on a circuit unencumbered by other appliances. The same thing will happen when plugging the same saw into a 20-amp outlet. However, if a saw that draws 20 amps is plugged into a circuit that is rated for 15 amps, pretty
soon a circuit breaker will interrupt the juice.
If the saw was hard wired into a box that provided 220 volts @ 30 amps, you can put a 30 amp plug on but you would use an outlet other than a dryer outlet.
Twist Lock Plugs and Outlets come in various amp ratings.
As always, if you are in doubt about what to do, the best advice anyone should give you is to call a licensed electrician to advise what work is needed.
Before you do any work yourself,
on electrical circuits, equipment or appliances,
always use a test meter to ensure the circuit is, in fact, de-energized.
IF YOU ARE NOT ALREADY SURE YOU CAN DO THIS JOB
SAFELY AND COMPETENTLY
REFER THIS WORK TO QUALIFIED PROFESSIONALS.
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