ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
ShoutChat Box
Recent Posts
Does a 'normal 3ph-AC motor' include capacitors?
by pcsailor - 09/16/19 05:45 AM
NEC Question_Cord-&-Plug EGC shorter then Neutral
by pcsailor - 09/16/19 05:26 AM
Another NEC 2017 Question_240/24VAC Txfr-Neutral R
by pcsailor - 09/16/19 05:22 AM
NEC 2017_392.22(B)(1)(b)
_What's the smallest width

by pcsailor - 09/15/19 07:58 PM
Service Question
by HotLine1 - 09/14/19 01:43 PM
New in the Gallery:
What is this for?
Plug terminals
Who's Online Now
0 registered members (), 15 guests, and 7 spiders.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate Thread
Page 4 of 8 1 2 3 4 5 6 7 8
Re: Flamed and need reassurance #14068 09/18/02 04:44 PM
Joined: Nov 2001
Posts: 280
M
motor-T Offline
Member
Paul of the UK,
As far as the the electric chair goes I really dont know what voltage it is, all I know is that when they were going to 'Fry' Ted Bundy, a radio station in Fla was asking everybody not to use any power, until it was over,,,.. bordering on the macabre, but it is lethal.
As far as the De-fib unit My source works in a intensive cardiac care unit and their method is as I described and their is no thought about what the body resistance is, If the patient is in shock they are cold and clamy anyway which has got to reduce the body resistance.
My whole point was the environment in which this takes place, an electric shock and the severity of the shock will be dependant on the prevailing conditions, ie if you are standing ankel deep in water a 50-70 volt jolt is probably more than enough to be lethal. And as someone pointed out Ohms law works,.. always
Since we have been talking about DIYers, I remember one telling me he never worried about 'House-hold current because it was only 110 volts', as strange as that was, the US Navy came out with a training film, many moons ago called, "110 volt, the deadly shipmate", and very graphically drives the point home, one shot i remember to this day is some Steward sticking a metal knife in a toaster... Respect is what it is all about.

Mark

Work Gear for Electricians and the Trades
Re: Flamed and need reassurance #14069 09/19/02 06:37 AM
Joined: May 2001
Posts: 717
G
George Corron Offline
Member
"The Chair" that I played with (I worked in a prison system in a non-death penalty state, BUT the chair was still there) was 2,500 volts. "Sparkies" last client was a cop killer in the 50's, but was actually one of the originals from about the turn of the century.

Just thought I'd pass it along.

Re: Flamed and need reassurance #14070 09/19/02 01:59 PM
Joined: Jul 2001
Posts: 599
J
JBD Offline
Member
For those interested in history, there is a book coauthored by the first US person to be executed by an electric chair. It goes into all of the design and testing to insure a humane operation.

The name is "A Peep Into The Twentieth Century". Sorry I can't remember the author.

[This message has been edited by JBD (edited 09-19-2002).]

Re: Flamed and need reassurance #14071 09/19/02 02:36 PM
Joined: Oct 2000
Posts: 2,749
Joe Tedesco Offline
Member
A Peep into the 20th Century
by Christopher Davis

Sumner Locke Elliott
"...a brutal case of man's inhumanity to man...because he is a beautiful writer he has conceived it as poetic horror story."

Book Description

A National Book Award nominee, A Peep Into The 20th Century is about the first electrical execution in 1890 and the war between Edison and Westinghouse for the soul of electricity's first deliberate victim.
http://www.wikipedia.org/wiki/Main_Page


Joe Tedesco, NEC Consultant
Re: Flamed and need reassurance #14072 09/19/02 04:21 PM
Joined: Aug 2001
Posts: 7,520
P
pauluk Offline
Member
Mark,
All the quotes I've seen give the chair voltage as between about 1700 and 2600V, although in many cases they apparently reduce the voltage after a few seconds. A quick search came up with these:

GA: 2000V 4 sec, 1000V 7 sec, 208V 2 min.
AL: 2500V 20 sec, 250V 100 sec.
VA: 1825V 30 sec, 240V 60 sec.
??: 2400V 7 sec, 600V 17 sec.

The initial higher voltage is supposed to knock out the brain & nervous system instantly.

George,
Trying to place where that would have been from the list I have here in conjunction with your location. You said state, but would that by any chance have been the District of Columbia? Just morbid curiosity!

I seen an oft-quoted value of just 32 volts as being the lowest potential which is on record as having proved fatal.

Re: Flamed and need reassurance #14073 09/19/02 07:37 PM
Joined: May 2001
Posts: 717
G
George Corron Offline
Member
Roger Paul, The good ole State of Confusion [Linked Image]

Re: Flamed and need reassurance #14074 09/19/02 10:31 PM
Joined: Apr 2002
Posts: 2,527
B
Bjarney Offline
Moderator
Paul, I knew it! There had to be some use for increased-voltage starting!

Re: Flamed and need reassurance #14075 09/20/02 03:45 PM
Joined: Aug 2001
Posts: 7,520
P
pauluk Offline
Member
George,
Thought it might have been Washington D.C. The only other non-death-penalty state at present bordering Va. appears to be WV, and I know they were the last state to adopt the chair in 1949, so it wouldn't have been a turn-of-the-century installation.

BJ,
Hee-hee! Gives new meaning to the term "jump start." [Linked Image] But did you hear about the proposed new NEC rule? In order to provide greater safety against shock electric chairs will be required to be fed via a GFCI -- [Linked Image] [Linked Image]

P.S. Re "State of Confusion," I ran into somebody the other day who was convinced that America has 52 states. No way could I get him to believe that it's only 50.
(And I've lost count of the number of people here who don't realize that Washington D.C. and Washington State are two different places on opposite sides of the country!)


[This message has been edited by pauluk (edited 09-20-2002).]

Re: Flamed and need reassurance #14076 09/21/02 10:30 PM
Joined: Apr 2002
Posts: 2,527
B
Bjarney Offline
Moderator
Paul, in the vain of, “…electric chairs will be required to be fed via a GFCI,” I wonder in hospital surgery rooms if electronic “give me 360 joules!” defibrillators are required to be fed from ground-fault-interrupter circuits?

Re: Flamed and need reassurance #14077 11/20/02 12:39 PM
Joined: Nov 2000
Posts: 2,236
sparky66wv Offline OP
Member
Got this in my email today:

Quote
I was thinking some at work yesterday and i realised that the way you had me conceed was by saying "it's basic ohms law." The thing about that is, ohm's law is DC math. Most of my argument was from an AC standpoint (such as power transmission), in which you can have an extremely low voltage produce an extremely high current. Sorry to burst your bubble bud ^_^

-Argile


Comments please.

I'm growing very tired of this stubborn and ignorant fool.

[Linked Image]

I replied:

Quote
If you would be so kind as to explain your theory on how impedance or reactance could make a difference in this matter. It takes a voltage potential to push the current through. On ECN, I've had Electrical Engineers back me up. You can believe whatever you want, but please do not bother me with it. I'm on my 23rd work day in a row and I don't have the time for this. I have posted your email on the thread at ECN and I'll let my comrades handle this for me.


[This message has been edited by sparky66wv (edited 11-20-2002).]


-Virgil
Residential/Commercial Inspector
5 Star Inspections
Member IAEI
Page 4 of 8 1 2 3 4 5 6 7 8

Featured:

2020 National Electrical Code
2020 National Electrical
Code (NEC)

* * * * * * *

2017 Master Electrician Exam Preparation Combos
2017 NEC Electrician
Exam Prep Combos:
Master / Journeyman

 

Member Spotlight
BEAMEUP
BEAMEUP
WA
Posts: 27
Joined: December 2004
Show All Member Profiles 
Top Posters(30 Days)
Admin 11
Popular Topics(Views)
258,569 Are you busy
194,159 Re: Forum
183,644 Need opinion
Powered by UBB.threads™ PHP Forum Software 7.7.3