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Article #24

Re: is third transformer hole an earth?

#24
From: David Nebenzahl
Date: Thu, 31 Dec 2009 05:04
36 lines
2963 bytes
On 11/11/2008 7:47 AM Whiskers spake thus:

> On 2008-11-10, Dave Plowman (News) <dave@davenoise.co.uk> wrote:
 >
>> In article <slrnghhb1o.bes.catwheezel@ID-107770.user.individual.net>,
>> Whiskers <catwheezel@operamail.com> wrote:
 >>
>>> Our power sockets are only 3kW each - but it isn't the Watts that really
>>> hurt, or even the Volts; it's the Amps you really need to be careful
>>> with. 60 Amps at a Japanese 100V would be a lot more dangerous than 30
>>> Amps at a European 230V.  (Although either could kill you, so the
>>> difference could be academic as far as the one grasping the wires is
>>> concerned).
>>
>> Not quite sure what you mean. The current drawn by a given resistance is
>> proportional to the voltage - and touching a 1000 amp supply is no more
>> dangerous to a human than touching a 1 amp one.
> 
> Well you go right ahead and play with the 1000 Amp wires if you want to,
> but wait for me to get out of sight and earshot first - I'm a bit
> squeamish.

He (Dave P.) is right. Once you're about the amount of current 
sufficient to be lethal (which is measured in milliamps, not amperes), 
the ampacity of a circuit you're touching--whether 15, 20 or 200 
amps--matters not.

No reason to be overly impressed by a 60-amp circuit. No more deadly 
than a 1-amp circuit.


-- 
I am a Canadian who was born and raised in The Netherlands. I live on
Planet Earth on a spot of land called Canada. We have noisy neighbours.

- harvested from Usenet
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Date: Wed, 30 Dec 2009 21:04:04 -0800
From: David Nebenzahl <nobody@but.us.chickens>
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Subject: Re: is third transformer hole an earth?
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