Hello, all,
I need a 240V circuit in my barn workshop, which is maybe 120' from the house.
Currently, I have (I think) 50A at 120V running from the main panel in the house, through an underground wire, to a sub-panel in the barn. There is no 240V in the barn, as yet.
I want to have the 240V circuit in the barn to run a 1.5hp table saw (induction motor) that I want to switch over to 240V and an air compressor.
The loads at 240V would be maybe 8A for the table saw (I know its motor uses 15A @ 120V) and 20A for the air compressor.
I would have a hard-wired switch on the compressor such that the table saw and compressor would never run at the same time, so the max load that circuit would ever see would be 20A @ 240V.
Since my "current" setup doesn't bring enough CURRENT (ha ha) to the barn to have a 20A/240V circuit, I will need to run another line from the house panel to the barn, and install another subpanel in the barn, I suppose.
My question is, can I combine two legs of 120V at the house to give
240V and then run the 240V current through a new underground line to the barn? Or must I run another 40A or 50A of 120V to the barn, and then combine the legs in the barn to give 240V?It seems like if I could run 240V from the house to the barn, I could use lighter wire...does anyone know if this is an option that will meet Virginia Code?
Thank-you for any advice.