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Old 07-17-2015, 06:00 PM   #1
El Campo
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Join Date: Jul 2011
Location: El Campo, Tx
Posts: 1,246
Help with 3 phase cable options

My shop is fully wired with single phase but recently bought a bunch of equipment that requires 3 phase of different voltages. I know little about AC wiring. I am 350 feet off of a 3 phase line that I could have the electric company put a disconnect on and then they would rerun wiring to my shop for the price of 5000 dollars. I would still have to have electrician set up everything in the shop. My other option may seem a bit wilder but may be cheaper? We have 3 phase actively in a meter and running some equipment 1000 feet away. Can I just hook into that 3 phase with a direct burial cable and bury it up to my shop and then put a breaker box there with my individual circuits off of that? The largest load is a 15 hp compressor. Will have a max of 75 hp at one time being used. What size of cable would I need? My head is spinning from all the wire options available. Also some of the machines run off of 480 and some are 240. I would need a step up or step down transformer correct? Any help is appreciated.
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