Re: this was probably really stupid

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

Original poster: Ed Phillips <evp-at-pacbell-dot-net> 

Tesla list wrote:
 >
 > 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.

	This morning I drove under a 275 kV  Southern Cal Edison line.  Each
phase used two conductors, about 1" in diameter (hard to judge from 100+
feet away), spaced a bit over 12".

Ed