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  #101  
Old 07.09.2011, 15:20
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Re: Idiot wires a plug

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Hopefully that bit. The amps through a cable are not dangerous at all. If you touch a cable carrying 10000A at 5 v, you won't feel anything (unless you are wearing a steel ring in which case you will only be able to count to nine in future).

It is ONLY the voltage which is dangerous....the voltage between your fingers (with which you touch the cable) and your feet on the ground will force current (amps) through you, across your chest cavity and if there is enough, you will die.

So higher voltage is more dangerous, current is irrelevant
110V is enough to kill, so I don't see the advantage over 228 which it what I am measuring right now.

In the film industry we regularly use 18,000W lamps & up to 100,000W exist, I really don't think it's any safer in the US than the UK if anything goes wrong you will fry. In CH it's allowed to Run an 18K's off 2 phases @ 63 amps (380v) then use a step down transfer. Electricians die every week in the US as they do in Europe.
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  #102  
Old 07.09.2011, 15:21
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Re: Idiot wires a plug

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It is true. But sorry I am not prepared to proveit to you. Volts allow the amps to enter and travel through your body. Now if you want to touch a cable with 1000A going through it, that is your choice. I would not, however, advise anyone to do so!

Listen.....you're just proving that a little knowledge is a dangerous thing, but that's OK. Actually in your case, you are wrong on the safe side of science, so that's OK too.

Anyway, its a REALLY dull argument...I got sucked into it because it reminded me of my old life running the largest High Voltage and High Current test facility in Europe and I enjoyed the nostalgia. Have a good one
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  #103  
Old 07.09.2011, 15:25
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Re: Idiot wires a plug

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However the no of amps required to power an item will be half of that in the US, so it's not really any more dangerous. The cables need to be thicker in the US
Exactly.

In the US you are more likely to burn your house down due to the increase in Amperage draw, therefor more heat. In Europe you are more likely to be electrocuted due to the increased potential on the line, but you are less likely to have electrically related fires due to the increased current related heat at terminations of the wiring.

The one thing that I have heard from engineers is that power supplies that run on 230 + voltage supplies are more likely to fail due to the fact that they are using smaller wires that are more likely to fail due to physical stress. I have always wondered how true this is since the finer wires could be more flexible and therefor less likely to fail than thicker ones.

I think in the end, the danger is a wash, as long as one is respectful of the properties of electrical systems. The truth is in the beginning the end user was slightly safer using lower voltage systems, however the cost of transmission is higher with the same lower voltage. Ironically, the higher voltage systems are probably better for the end user now that electricity is so ubiquitous in our lives, due to reduced transmission losses, when one considers how everything in the our households are operated using electricity.
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  #104  
Old 07.09.2011, 15:28
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Re: Idiot wires a plug

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it reminded me of my old life running the largest High Voltage and High Current test facility in Europe and I enjoyed the nostalgia.
Professor Brian Cox?
Is that you?
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  #105  
Old 07.09.2011, 15:30
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Re: Idiot wires a plug

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Professor Brian Cox?
Is that you?
I've said too much already...

*disappears enigmatically in a puff of self-righteousness and logic*
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  #106  
Old 07.09.2011, 15:31
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Re: Idiot wires a plug

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Listen.....you're just proving that a little knowledge is a dangerous thing, but that's OK. Actually in your case, you are wrong on the safe side of science, so that's OK too.

Anyway, its a REALLY dull argument...I got sucked into it because it reminded me of my old life running the largest High Voltage and High Current test facility in Europe and I enjoyed the nostalgia. Have a good one
What the one under Geneva?!?
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  #107  
Old 07.09.2011, 15:31
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Re: Idiot wires a plug

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Professor Brian Cox?
Is that you?

no, he said
"it reminded me of my old life running the largest High Voltage and High Current test facility in Europe"

Not

"
it reminded me of my old life playing is a shit one hit wonder group in the uk"

HTH
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  #108  
Old 07.09.2011, 16:05
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