Forget the ABYC tables for sizing wires according to amperage and round trip distance. Google "WIRESIZER". This free program will calculate the necessary wire size based on amps, distance, and tolerable voltage drop. It even takes into account wires in a bundle and insulation temperature rating. You can save money by not having to go to the next higher size in the ABYC tables. This program has been previously mentioned here as far back as 2002. Edmond Badham COSMO Wilmington, NC