A
Alan B
- Jan 1, 1970
- 0
but I suppose your mommy has the parental controls on.
Ah, yeah, and somebody's mommy forgot.
but I suppose your mommy has the parental controls on.
Abstract said:It was a hypothetical... surely you could easily have picked up this if you
read the very first line?
Seriously, approach cautiously, if it tingles too much, and your hair is
standing on end then back off and try a longer stick.
Abstract said:Nope, What I was after if the general principle was right. Now, any
electrical engineer who actually learned something in school could easily
answer the question. He would also not hesitate go through powerlines if he
knew how to ground them.
The real problem is that you get so easily confused if the context of the
problem is not to your liking. What you need to do is abstract it and
realize that it has nothing to do with power lines but its just a general
electricity question. If I would have said it in a more appropriate context
for you then the answer would be obvious.
Also that the downed line would
only have a percentage of its nominal voltage that it had when it was up on
its insulated, far above ground, proper place.
Alan B said:That's a very bad assumption. The better assumption is that the ground is
already somewhat live just by being covered by a live line. "vic"'s
somewhat facetious comment about hopping on one foot covers the situation
aptly: one would be foolish to even walk near a downed line, for the
voltage gradient *on the ground* from one footstep to the next may very
well be sufficient to kill or maim. It's called "step potential."
BobG said:My buddy Billy has 30 years at the power company. They show em a safety
film about how to deal with a live wire falling on the truck.... jump
out! Don't step out!
I'm curious as to how one, say if they are forced to, approach downed power
lines.
What gets me is that some of you guys are somewhat intelligent but can't
understand that I was asking a hypothetical. Its not like I'm going to
go try test out any responses.
Jesus christ.. did you not read? IT WAS A FUCKING HYPOTHETICAL!!!
I just recently saw another mention of this somewhere else for about the
4th-5th time - When, however insanely, you find yourself approaching a
downed line, either hop or shuffle small steps to minimize the effects
of field gradients between contact points. Don't *KNOW* if it's fact or
fiction, and am unlikely to find myself in a situation to test it, but
I've *HEARD* it a few times, and it DOES make a modicum of sense at
first glance.
I smell a business opportunity here. I will take advantage of the terror
shown here by offering to deal with high voltage---for a price!
Don Bruder said:I just recently saw another mention of this somewhere else for about the
4th-5th time - When, however insanely, you find yourself approaching a
downed line, either hop or shuffle small steps to minimize the effects
of field gradients between contact points. Don't *KNOW* if it's fact or
fiction, and am unlikely to find myself in a situation to test it, but
I've *HEARD* it a few times, and it DOES make a modicum of sense at
first glance.
It also pretty much fits with what I know from associating with a
lineman whose primary trade during his active years with Consumer's
Power of Michigan was "High Voltage Lineman" - He worked on the *BIG*
boys that *NEVER* go cold short of being cut. Working 500KVA lines with
them hot was his bread and butter. He told me many a tale, and a LOT of
practical info, and the advice to shuffle or hop meshes with his
teachings, common sense, and what I already knew of
electronics/electricity even before meeting him.
A 1V potential between contacts is no big deal - But what about a 500V?
Or higher? Methinks "Ouch" be de answer.
Abstract said:That is basically my point though. We learn about certain principles in
basicl electronic courses but I'm curious as if they still hold on higher
voltages. The breakdown voltage of air, I think, is 32kV/in... so if your
dealing with something at 500kV then thats more then a foot away that it
could "get" you.
What made me ask the question in the first place was I saw on tv some
reporters walking over a HV line that was downed. Now maybe there was no
power in it but I was curious as to why they did it when it was possible
they could have died.(and there surely wasn't any electricians around to
tell them it was ok to do so).
Now, some assholes here has to try and start a pathetic argument to get out
of answering the real question I asked... maybe because they don't know and
they just don't want to admitt it or not even post.
The main thing I'm after is how these people work around HV such as power
lines. Obviously the easiest answer is just to shut off the power... but
surely there would be a case where that might not be possible(its not hard
to imagine... unless maybe you are John Fields).
Abstract said:was grounded properly and properly attached to the power lines but is theres
something I'm missing?
Thanks,
Jon
Abstract said:Anyways, I also remember seeing osmethign on TV a few years ago where a
power line worker was in a helicopter and his job was to do something with
the lines. Somehow he got shocked when he was doing what he was doing(I
forgot)... normally it doesn't happen but I think it was cause of something
stupid.
Thanks,
Jon
He got Zapped by the STATIC ELECTRICAL Charge generated by the Rotor of the Helicopter, not from the power Line.
Jesus christ.. did you not read? IT WAS A FUCKING HYPOTHETICAL!!!
If you don't know what that word means then look it up in the
dictionary.
The only idiots in here I see are the ones who can't understand what a
hypothetic is.
I guess you never watched MacGyver?