RE: this was probably really stupid

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "Steve Conner" <steve.conner-at-optosci-dot-com> 

 >The cables do not appear to be very large in diameter --- perhaps an inch
or
 >two at best.  With that small radius and diameter, why don't they emit
 >tremendous corona?

The 275kV and 400kV power lines I have seen, have each conductor made from
four cables spaced about 12" in a square formation. From an e-field point of
view this has the same effective ROC as a much bigger cable (think of a
finite element toroid)

Steve C.