Adding 220v questions


Old 05-20-19, 06:26 PM
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Adding 220v questions

Hello, I am going to be adding a 220v outlet to power a welder. I've researched the specs and have what I believe to be the correct parts, but want to be sure before I make the connection. I have a 30amp breaker, outlet box and correct plug for my application. The wiring link in between is where I need clarification. I purchased a pre wired whip like you'd use for an ac unit etc. It has 2 8g wires and 1 10g wire in a sleeve for outdoor use as this will be located outside of my garage. Will this whip/wire be sufficient? I've done this install before at a previous house, but I already had wire for the job and haven't used this type of setup. Max amps stated for the product is 40 so i think im good, just need someone smarter than me to say so. Thanks
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Old 05-20-19, 07:02 PM
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Yes, it is good for 30a. Is the #10 wire green? You will need a factory colored green.

Note: Nominal voltage is 240 volts residential single phase.
Old 05-20-19, 07:13 PM
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Yes, the green wire is the 10g wire while the other 2 'hot' wires are 8g. Excuse my ignorance, but what is a factory colored green mean?

Last edited by Erm10a; 05-20-19 at 07:14 PM. Reason: Adding info
Old 05-20-19, 07:45 PM
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It means the #10 wire, which will be used as a ground, must be colored/insulated green by the manufacturer.
Old 05-20-19, 07:48 PM
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Fair enough. Yes that wire is green. So it seems as though this pre wired whip will be sufficient for my needs.
Old 05-21-19, 06:37 AM
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Yes, you're good to go.....................................

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