I installed a manual transfer switch with a 10/3 nm wg from transfer switch to a male outlet box in garage for generator cord set. I come to find out that the 5kw portable generator is older and only has a 20 amp 250v 3 wire outlet instead of the L14-20 locking 4 wire plug. How do I rewire cord set using the 3 prong male plug? Would I use the white insulated conductor instead of the ground that runs through the 10/3 romex? The cord set is a sjoow cord that does have an insulated green wire, but the romex does not. Does that portable generator need to have a ground rod?
Thanks for your help!
Thanks for your help!