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I don't have room on my panel for another 220v circuit. I'd like to make a 220v outlet in the garage, tapping into the same circuit as the dryer, which is located on a shared wall.

Does the electrical code allow sharing outlets on a 220v circuit, like you would on conventional 110v? Would I have to install a transfer switch?

Thank you

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The only concern is whether your dryer circuit was built under the old dryer circuit exceptions and only has three conductors or is it a four wire circuit that has a separate ground and neutral. If the circuit is three conductor you must not use it to supply a 240 volt receptacle elsewhere. If it is four wire it can certainly have more than one outlet but you could only use one at a time. My answer is based on the assumption that the receptacle you wish to install in the garage is a NEMA 10-30R which needs a circuit that contains two ungrounded circuit conductors and an equipment grounding conductor and not a 6-30R that is for dryers only.
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Tom

[This message has been edited by tdhorne (edited December 19, 2002).]