Bob Ammerman wrote: > DC is used for very high voltage (1 MVolt+!) long > distance power transmission. For one thing, it > avoids the skin effect. Could you, please, estimate the depth of a skin effect in copper lines at 60Hz AC. Mike. (Perhaps losses due to coronal glow at 1 MVolt+ are greater) -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads