J
Jack Jet Williams
Does anyone know how far 750 kv ac could arc once it got started ?
Just wanted to know.
Thanks.
Jack Jet Williams
Hesperia,Ca.
Just wanted to know.
Thanks.
Jack Jet Williams
Hesperia,Ca.
Does anyone know how far 750 kv ac could arc once it got started ?
Just wanted to know.
Thanks.
Jack Jet Williams
Hesperia,Ca.
14 feet. That is the minimum safe distance for workers on such
lines.
Air ionizes along a path, so a set length is impossible to state. A
path could propagate several feet further than "thought".
It also differs for DC and AC with AC less likely to arc.
Actually, for a given nominal voltage, AC sparks through a greater
distance than DC does since AC has a peak voltage about 41% higher than
nominal.
But a DC arc is more "stretchable" than AC one is once it gets started.
I dunno. But I saw a photo of a high voltage line which had beenDoes anyone know how far 750 kv ac could arc once it got started ?
Just wanted to know.
Thanks.
Jack Jet Williams
Hesperia,Ca.
--------------------DarkMatter said:NOpe. AC crosses zero too many times to propagate an ion path.
DC starts one, then finishes it.
Long before the arc, an ion path must be established.
--------------DarkMatter said:14 feet. That is the minimum safe distance for workers on such
lines.
Air ionizes along a path, so a set length is impossible to state. A
path could propagate several feet further than "thought".
It also differs for DC and AC with AC less likely to arc.
Jack Jet Williams said:Does anyone know how far 750 kv ac could arc once it got started ?
Just wanted to know.
Thanks.
Jack Jet Williams
Hesperia,Ca.
Jo said:Jack.
Check out these movies on Bert Hickmans site at the URL below...
http://205.243.100.155/frames/longarc.htm
The 500KV one is awesome and will give you an idea of how far an arc can
reach.
Cheers.
Mark H.
Don Kelly said:--------------------
What you are effectively saying is: "As AC cannot propagate an ion path
there cannot be ionic conduction between electrodes supplied by AC and that
big fat and hot arc on a AC system is a figment of imagination. Flourescent
lights also will not work on AC as they depend on establishment of an
ionized path."