So im currently setting up my 250v outlet to run my Welder. My question is im using 10-3, so ive obv. got my black and red power wires that connect to each of the 2 pins, but then ive got the ground, and the common. ( bare wire and white insl. wire ) Where do i put these 2 wires? im hearing a few different stories and would like to know the best way to do this? some are telling me to combine them on the ground prong of the receptacle, someones telling me just leave the common alone as its not needed, and others are telling me one of them needs to be grounded on the box where the receptacle goes into?
can someone please give me a definite answer to where the ground ( bare ) wire goes and where the common ( white ) wire goes?
* The ground pin on my receptacle is labeled 'green'