Three phase or two phase? Three phase requires three large wires for the current needed
No.It'll overload and fail just about immediately.It's possible - but not recommended - to run two 110 v heaters in series from a 220v circuit.
Most 220 volt equipment will work on 208 volt supply. If the machine has a resistive load then the watts output will be lower than if supplied from a 220 volt source. If it is a motor load you will find that the equipment may run a bit slower but most motors will take the lower voltage. If the machine is a plug in device, install the appropriate receptacle to match the pin configuration and plug it in. If it is a hard wire installation this should be done by a qualified person.
You can't. A 220 volt dryer requires 220 volts in order to operate properly. It will not run on 110 volts.
Amp draw is always combined. 220V is uncertain if it is three phase or not, because there are both one phase and three phase applications of the 220V motor. In any case, the answer is always "combined".
There has to be a pull box between every four quarter bends in a conduit run.
2 gang
Yes no problem the transformer should run a little cooler as well.
Depends. Some smaller stuff can usually run on both, in which case it will be printed on them. If it isn't, you can't run a 220v item on 110v.
45
You need a 220V cartridge fuse block open, not just two 110V fuses. Fusing a 220V device with two 110V fuses at the panel is dangerous and doesn't meet code. If you have a 220V fuse block open, simply wire the two hots to the block, and then wire the neutral and ground normally. If you have fuses make sure the box and the feed can handle a clothes dryer. It may be wise to have an electrician evaluate the system for safety.
No
Yes. It is best to run a line from main breaker box to a separate 220V box with it's own breaker. You will need a licensed electrician to install if you are'NT comfortable doing this type of installation yourself.
Yes, purchase a step-down transformer.
No. Attempting to run an appliance on insufficient voltage can cause damage to the appliance and can be dangerous. Call an electrician and get him to install a 220v plug
Short answer: No. (unless you like ruining motors) Longer answer: Not really, but there are some motors that can be re-wired so that instead of 440v they will run on 220v. However, this is not that common. Conclusion: Check the motor to see if it is dual-voltage on it's nameplate. If it is, you can re-connect it to work on 220v. If it is NOT a dual-voltage motor, you will absolutely ruin it if you connect it to 220v.
No, the compressor& fan will run too fast and will more than likely be damaged. It may not be damaged but I would not take a chance.
Unless the computer has a switch on the back allowing you to use both dual voltages and frequencies, the computers internal clock will run faster.