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On Fri, 2006-08-11 at 12:24 +0200, Nagatoro wrote: |
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> Herman Grootaers wrote: |
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> > On Friday 11 August 2006 11:22, Hamish Marson wrote: |
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> >> All-in-all I prefer 240V single phase. |
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> > |
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> > So do I, although in itself that voltage is deadly |
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> |
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> When combined with a high enough current... |
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The current drawn through a conductor (in this case a live body) is |
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determined by the voltage, and the resistance of the body itself. Basic, |
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elementary Ohms law. A live body will draw something in the order of 100 |
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mA from 240V ac (assuming the power source can deliver that current, we |
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can assume it will as this is mains after all). |
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The point is that even if the power station can generate 14 brazillion |
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quadrillion amps and the wires to your house can carry it without |
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melting, you will still only have 100mA going through your body if you |
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happen to get shocked. |
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The power source delivers the volts and th4e sink doesn't get to change |
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that. The sink draws the current and the source doesn't get to change |
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that. |
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|
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alan |
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-- |
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