Greetings all,
I recall hearing accounts of children inserting a hairpin, for example, into
an electrical outlet inside the home and receiving a shock. For some
reason, I started thinking about this recently and wasn't sure if I
understood this one-handed electrical shock phenomenon. How does on
Though the descriptions do not indicate if the shock was
one-handed in the same sense as this discussion, other 120V
incidents (the latter fatal) are briefly described at:
http://www.esainspection.net/pdf/fsn/02-02-fl.pdf
http://www.esainspection.net/pdf/fsn/98-02-fl.pdf
Regards,
Peter L. Tar
Ken -
With the advent of leakage current meters, like the Simpson
228 and 229-2, it would be interesting to know what one of
those meters (in particular the 229-2) indicate the current
flow is, just as a cross check.
Regards,
Peter L. Tarver, PE
ptar...@ieee.org
This message is from the IEEE
v.ieee.org
[mailto:owner-emc-p...@listserv.ieee.org] On Behalf Of John Woodgate
Sent: Monday, December 06, 2004 4:10 PM
To: emc-p...@ieee.org
Subject: Re: Is one-handed electrical shock possible?
In article <39f7060a00b5e946b516261c077441c02eb...@utexch1w.gnnettest.co
m>, Chris Maxwell writes
&g
In article <39f7060a00b5e946b516261c077441c02eb...@utexch1w.gnnettest.co
m>, Chris Maxwell writes
>I already did the math...at time zero, you will be subjected to 24mA of
>current, (assuming 120VAC and 5Kohm charging resistance through the
>body) which is well above the threshold of human sensati
Monday, December 06, 2004 1:30 PM
To: ken.ja...@emccompliance.com; emc-p...@ieee.org; Chris Maxwell
Subject: RE: Is one-handed electrical shock possible?
Most entertaining - particularly the last few posts :).
Chris,
I like your theory, and so I hate to shoot a hole in it... but this is
AC, not
Most entertaining - particularly the last few posts :).
Chris,
I like your theory, and so I hate to shoot a hole in it... but this is AC, not
DC (your model would be great for DC) - so we'd have a constant state of
charge/discharge.
Unless...the 60Hz is too slow to feel one handed, in which case
Well Ken, I always admire a man who will put his tongue on the battery
for the sake of scientific knowledge. I also admire a man willing to
put up with a little electrolyte for the sake of canine companionship.
There is only one living entity that is ALWAYS happy to see you come
home...your dog :-
I took some test data. That may be a bit of an exaggeration, but I made a
few measurements.
This was at one of the electrical outlets where I got a one-handed shock.
It is also where the electrolyte content of the rug is unknown but possibly
not zero, on account of the four-legged members of this
Certainly in my household the electrolyte content of the rug is an unknown,
unquantified contribution to the uncertainty of any electrical phenomenon.
> From: "Chris Maxwell"
> Date: Fri, 3 Dec 2004 09:42:04 -0500
> To: "Ken Javor" , "John Woodgate"
>
I was not suggesting any unknown effect. I am simply surprised the reason
for the shock is not better understood.
> From: John Woodgate
> Date: Fri, 3 Dec 2004 17:36:18 +
> To: emc-p...@ieee.org
> Subject: Re: Is one-handed electrical shock possible?
>
> In article , K
In article , Ron Pickard writes
>The
>reason I ask this is that by using a DC voltage source any
>capacitive/inductive effects would be eliminated, which would leave only
>resistance.
The capacitor to 'ground' would have to charge to 170 V via some
resistance, maybe quite a lot, so it would take
In article , Ken Javor
writes
>Okay, let's grant a conductive pea soup fog within a millimeter or so of
>a human body. I am standing on a rug, over a pad, attached to a wood
>sub-floor. I grab a hot wire and get buzzed. Where is the current
>going after it leaves my body?
The microclimate exte
ken.javor@emccomp
liance.com To: rpick...@hypercom.com
cc: emc-p...@ieee.org
12/02/2004 06:19 Subject: Re: Is one-handed
electrical shock possible?
Ah yes I know it well. As smeone who has encountered the
discharge from power supply caps that haven't fully discharged
after the power was turned off. The designer I was working with
had disconnected the bleeder resistor. And all this with an
agency rep looking on.
Doug
--- "Peter L. Tarver" wr
> From: Doug Beckwith
> Sent: Friday, December 03, 2004 6:56 AM
>
> I suspect that 100% of people in the engineering
> profession have
> experienced it because we tend to ask "I wonder
> what happens
> when..?"
>
> Doug
>
And some inadvertently.
Product safety engineers seem to take many chan
x27;t seem to have any
> other
> after effects that I know of.
>
>Dave Cuthbert
>
> -Original Message-
> From: owner-emc-p...@listserv.ieee.org
> [mailto:owner-emc-p...@listserv.ieee.org] On Behalf Of Ken
> Javor
> Sent: Thursday, December 02, 2004 4:25 PM
> T
2, 2004 8:20 PM
To: Ron Pickard
Cc: emc-p...@ieee.org
Subject: Re: Is one-handed electrical shock possible?
My comment is 22 nF is an awful lot of stray capacitance. If I were in
my screen room and wearing thin soled shoes standing on grounded metal
sheet I could see it, but not in a home environm
A little snip from Ken Javor's message:
]]] SNIP ]]]
Okay, let's grant a conductive pea soup fog within a millimeter or so of
a human body. I am standing on a rug, over a pad, attached to a wood
sub-floor. I grab a hot wire and get buzzed. Where is the curren
ailto:alexandre.gour...@cmot.xerox.com]
Sent: 03 December 2004 14:04
To: emc-p...@ieee.org
Subject: RE: Is one-handed electrical shock possible?
The other 2 things I would consider:
1. Capacitance of the body (150pF typically) can be much higher in the
situation Ken described, i.e. proximity of the concret
04 08:23:05 +
> To: emc-p...@ieee.org
> Subject: Re: Is one-handed electrical shock possible?
>
> In article , Ken Javor
> writes
>> My comment is 22 nF is an awful lot of stray capacitance. If I were in
>> my screen room and wearing thin soled shoes standing on groun
ay, December 03, 2004 3:23 AM
To: emc-p...@ieee.org
Subject: Re: Is one-handed electrical shock possible?
In article , Ken Javor
writes
>My comment is 22 nF is an awful lot of stray capacitance. If I were in
>my screen room and wearing thin soled shoes standing on grounded metal
>sheet I co
In article , Ken Javor
writes
>My comment is 22 nF is an awful lot of stray capacitance. If I were in
>my screen room and wearing thin soled shoes standing on grounded metal
>sheet I could see it, but not in a home environment where there is a
>large separation between every part of my body and gr
ard
> Date: Thu, 2 Dec 2004 17:12:23 -0700
> To: ken.ja...@emccompliance.com
> Cc: emc-p...@ieee.org
> Subject: Re: Is one-handed electrical shock possible?
>
>
>
>
>
> Hi Ken,
>
> As with you and Gary and I'm fairly sure with just about everyone else on
this
>
riginal Message-
> From: owner-emc-p...@listserv.ieee.org
> [mailto:owner-emc-p...@listserv.ieee.org]On Behalf Of Ken Javor
> Sent: Thursday, December 02, 2004 3:25 PM
> To: emc-p...@ieee.org
> Subject: Re: Is one-handed electrical shock possible?
>
>
> There have been a great
effects that I know of.
Dave Cuthbert
From: owner-emc-p...@listserv.ieee.org
[mailto:owner-emc-p...@listserv.ieee.org] On Behalf Of Ken Javor
Sent: Thursday, December 02, 2004 4:25 PM
To: emc-p...@ieee.org
Subject: Re: Is one-handed electrical shock possible?
There have been a great many
ard
rpick...@hypercom.com
ken.javor@emccomplian
ce.com To: emc-p...@ieee.org
Sent by: cc:
owner-emc-pstc@listse Subject: Re: Is one-handed
Javor
Sent: Thursday, December 02, 2004 3:25 PM
To: emc-p...@ieee.org
Subject: Re: Is one-handed electrical shock possible?
There have been a great many anecdotal tales submitted, and I could add my
own hair-raising adventures. I suspect just about anyone living in the
civilized world in the latter h
There have been a great many anecdotal tales submitted, and I could add my
own hair-raising adventures. I suspect just about anyone living in the
civilized world in the latter half of the 20th or beginning of the 21st
century has at one time or other experienced a one-handed shock.
So the possibi
Subject: RE: Is one-handed electrical shock possible?
An anecdote:
My eldest daughter, at an early age, did place a conductor
in a 120V outlet at her grandparents home. As a result of
the shock she received, she stopped breathing. Fortunately,
my father-in-law was nearby and was able to restart h
An anecdote:
My eldest daughter, at an early age, did place a conductor
in a 120V outlet at her grandparents home. As a result of
the shock she received, she stopped breathing. Fortunately,
my father-in-law was nearby and was able to restart her
breathing by only shaking her. If someone were no
This is going off on a bit of a tangent to your
question, but . . . if you are remembering an account
of a child playing with a hairpin (or other moderately
flexible piece of metal) and a live electrical socket
and getting injured, the injury may have been a burn
injury and not a shock injury. If
t.com
drcuthb...@micron.com
Sent by: owner-emc-p...@listserv.ieee.org
11/29/2004 08:47 AM
To:,
cc:
From:owner-emc-p...@listserv.ieee.org
Subject: RE: Is one-handed electrical shock possible?
There is the body capacitan
ve Cuthbert
>Micron Technology
>
> -Original Message-
> From: owner-emc-p...@listserv.ieee.org
> [mailto:owner-emc-p...@listserv.ieee.org] On Behalf Of
> John Woodgate
> Sent: Friday, November 26, 2004 9:39 AM
> To: emc-p...@ieee.org
> Subject: Re: Is one-handed elect
ember 26, 2004 9:39 AM
To: emc-p...@ieee.org
Subject: Re: Is one-handed electrical shock possible?
In article , Allen Tudor
writes
>Does
>capacitance between the body and earth come into play?
Yes. And most things are a bit moist (except in Arizona, of course,
where even the water is dry,
In article , Allen Tudor
writes
>Does
>capacitance between the body and earth come into play?
Yes. And most things are a bit moist (except in Arizona, of course,
where even the water is dry, or so I am reliably informed), so there may
not be as much insulation resistance as appears at first sight
and kill you from
the fall!
Regards,
Chris
From: owner-emc-p...@listserv.ieee.org
[mailto:owner-emc-p...@listserv.ieee.org] On Behalf Of Allen Tudor
Sent: 26 November 2004 02:42
To: emc-p...@ieee.org
Subject: Is one-handed electrical shock possible?
Greetings all,
I recall hearing accounts of
ubic.com>
To: emc-pstc mailinglist <mailto:emc-p...@ieee.org>
Sent: Monday, November 29, 2004 10:02 PM
Subject: RE: Is one-handed electrical shock possible? - Nearly OT
-Original Message-
From: Camille Good [ mailto:goodca_ve...@yahoo.com]
Sent: Monday, November 29, 2004
-Original Message-
From: Camille Good [ mailto:goodca_ve...@yahoo.com]
Sent: Monday, November 29, 2004 11:56 AM
To: emc-pstc mailinglist
Subject: Re: Is one-handed electrical shock possible?
This is going off on a bit of a tangent to your question, but . . . if you are
39 matches
Mail list logo
