RE: [TCML] Running a TC in snow

[davep@xxxxxxxx]

 Snow, so long as it stays snow, is an insulator.
(of course it may not stay snow....)

(Science Trivia:
  water.  Pure water is a dandy insulator.  Near me (supplying
  some of the electricity for this note...) is one end of a 1MVDC
  transmission line, which is chopped back to AC by HUGE, LONG
  SCR (?Triac) stacks.  These are cooled and insulated by....
  (you guessed....).  But! water is not usually 'pure': dissolved
  stuff largely ionizes, even in drinking grade water and THEN
  the water is more or less conductive.)

Back to cold weather coiling:

Another side effect is 'frozen ground'.  Mostly of concern on
outdoor, low powerish operation.  If the ground is shallow,
'water' freezes to 'ice' immobilizing the ions mentioned above,
and NOW the 'ground electrode' is insulated from 'ground'.
Sometimes a little operation melts the ice in the ground around the
electrode.  This effect is documented in power system literature,
and has been discussed on list before...

best
 dwp




_______________________________________________
Tesla mailing list
Tesla@xxxxxxxxxxxxxx
http://www.pupman.com/mailman/listinfo/tesla