Correct. The "big ones" are not insulated.Originally Posted by RagingDragon
Flux Capacitor User
Correct. The "big ones" are not insulated.
Yes. One of the last commincations I had with Dave Hammock before he disappeared from the web was how a major brand single +12V rail PSU wasn't shutting down when shorted. We were literally arc welding with the PSU. Hopefully Dave's absense isn't due to the fact that he got over zealous with the welding.
JonnyGURU Posted 4-1-08
200W User
Most primary overhead distribution lines (2400V residential, 12.5kV, and 14.4kV -- all phase to ground) use non-insulated Al, Al-Steel, or all steel wire. That way, the lines are a bit more performant as there's no outer coating to retain heat and line workers can perform the bulk of routine operations live with hot sticks, plus the installed cost for wire is less.
Buried primary cable is, of course, insulated and overhead insulated wire does exist in the form of polyethylene insulated "tree wire" and other specialized application conductors.
https://www.southwire.com/ProductCat...prodcatsheet42
20W User
Static electricity from a helicopter
http://realitypod.com/2011/03/29/hel...corona-effect/
https://www.youtube.com/watch?v=eW5p70b9RjE
A lot of discussion here talks about equalizing the electric potential, but don't forget those lines are AC and so the electric potential alternates.
Even airplanes have static discharge wires (static wicks)
Last edited by ashiekh; 07-06-2018 at 09:38 AM.
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