electric shock

On Fri, 18 May 2012 19:35:27 +0000 (UTC)
David Taylor wrote:

On 2012-05-18, Graham wrote:
On Fri, 18 May 2012 19:26:35 +0100, Davey

Fair enough. But what is the correct word for the survived
equivalent, then?

How about the subject line of this thread, perhaps qualified by
"severe", "very dangerous" etc.

I'm not sure "the severe subject line of this thread" has quite the
same ring to it...


Try "Quite the same Tingle", and we're getting closer. Still not there,
though.
--
Davey.

Martin wrote:

In one of today's newspapers there is a photo of a paraplegic guy who
has just swum between two of the Indonesian islands using special
attachments to what is left of his legs. It says he was electrocuted
whilst removing a TV aerial

What, removing it from the top of a 132kV pylon?

Bill

Richard Tobin wrote:
In article ,
Bill Wright wrote:
The individual cycles can be felt quite
clearly. It made me wonder if the feeling of touch has less persistence
than vision. Of course the ears would turn the 50Hz into a note.

Presumably you feel it as 100Hz, since all you can detect is the
magnitude.

-- Richard

I have very bad skin. It only conducts one way.

Bill

They must have some strange ideas of how to power mast head amplifiers over
there then.

What i mean is that you can still get devices that create electric shocks.
tens devices and these are not lethal, some find them very pleasent.
Brian

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"Martin" wrote in message
...
On Fri, 18 May 2012 16:16:14 +0100, "Brian Gaff"
wrote:

Its of course across the heart you need to watch out for. Some people like
the effect of electric shocks, but obviously there are limits!

Brian

In one of today's newspapers there is a photo of a paraplegic guy who
has just swum between two of the Indonesian islands using special
attachments to what is left of his legs. It says he was electrocuted
whilst removing a TV aerial
--

Martin

I suppose its an electrostatic effect, similar to the ones you can get on
double insulated mains gears metal parts if there is no earth.

Mind you there must over a long run be quite a loss of power.
No wonder they are talking about using superconductive links at DC in the
future.
Brian

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"tony sayer" wrote in message
...
In article , Brian Gaff
scribeth thus
Now here is a thing. We have some pylons near here, if I walk under the
lines , thn hold my white cane up in the air, I can feel the 50 hertz as i
gently run my finger over any exposed aluminium exposed area on the cane.


Yes its called "leakage" Many years ago we used old fluorescent tubes to
demonstrate this. We used to ride around in an old transit van which one
of those long fibreglass aerials on the top, the sparks you could pull
off the aerial lead were very impressive on wet nights..

If you have a railway station thats on an electrified line you can get
similar things, the volts are lower but so are the distances..

Not that I'd advise you too wave that too high of course...




Brian


--
Tony Sayer

In message , Bill Wright
writes
Richard Tobin wrote:
In article ,
Bill Wright wrote:
The individual cycles can be felt quite clearly. It made me wonder
if the feeling of touch has less persistence than vision. Of course
the ears would turn the 50Hz into a note.
Presumably you feel it as 100Hz, since all you can detect is the
magnitude.
-- Richard

I have very bad skin. It only conducts one way.

You ought to see a dermatologist and see if he can rectify the problem.
--
Ian

Ian Jackson wrote:

You ought to see a dermatologist and see if he can rectify the problem.

Yay! :-)

--
SteveT

In one of today's newspapers there is a photo of a paraplegic guy who
has just swum between two of the Indonesian islands using special
attachments to what is left of his legs. It says he was electrocuted
whilst removing a TV aerial

What, removing it from the top of a 132kV pylon?


Metal ladder met powerline.

And he is "limbless" (4 amputations) rather than paraplegic.
http://www.bbc.co.uk/news/world-asia-18100850
--
Robin
reply to address is (meant to be) valid

On Fri, 18 May 2012 16:16:14 +0100, "Brian Gaff"
wrote:

Its of course across the heart you need to watch out for. Some people like
the effect of electric shocks, but obviously there are limits!

Brian

A good shock is also used to start the heart!

About 50 years ago when I was an apprentice TV engineer I often
"showed off" by producing a blue arc with my finger from the EHT. It
was quite safe because the current was very low. Years later I was
working on Ampex computer tape decks and accidentally touched a motor
servo drive. That was a releatively low voltage but high current - I
almost did a somersault!

Steve

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On Saturday, May 19th, 2012, at 12:06:22h +0100, Stephen Wolstenholme wrote:

A good shock is also used to start the heart!

Oftentime it is a shock (not necessarily an electric one)
which causes it to stop.

Incidentally, if you are interested in the role of electric
currents in developmental biology, you may like to listen
to the first segment on this week's edition of "Life on Earth",
from PRI (Public Radio International).

http://www.loe.ORG/shows/segments.html?programID=12-P13-00020&segmentID=1