by Guest » Wed Nov 15, 2006 9:22 pm
AWG is most likely American Wire Gauge, used for electrical wiring. You can Google for conversion tables that give you diameter of the wire, ohms per foot, or per thousand feet, etc. Conversion tables to diameter in millimleters, ohms/meter, etc are also available.
MCM is thousands of circular mils, an odd way of specifying the cross-sectional area. The factor of pi/4 is built into the definition. Take the diameter in mils (thousandths of inch), square it, move decimal three places and you have MCM.