what to use?

Can I use 3 wires on 220v from a genset to the house, or must it be 4 wires? What is conventional?
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What is the conduit? Metal could be considered the ground so the three wires would be OK. If its not metal then you need to pull a seperate ground. At least this is what is considered the norm for wiring. Maybe generators are different? But someone will still need to know what the conduit is.
Rich
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It won't be conduit. It'll be cord like welder pigtail or dock power cords.
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4 wires is the right way to do it.
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