On Sun, 21 May 2006 20:44:19 GMT, "AlmostBob"
wrote in
:
|>the transformers, wont pass.
|>Employers wont let you use them if you can find someone to pass them, too
|>much risk of crossover
|>
|>Aus worksites use earth leakage circuit breakers, so 240V power tools are
|>used, or battery rechargeables.
|>Incidentally, safer?, stand in a bathtub and drop your 110V tool in, you're
|>just as dead as 240V
Actually, it isn't the voltage that kills but the amperage or
current, and depends on the path through the body, mainly through
the heart. There have been deaths from 32 volt DC farm lighting
systems.
|>That is a UK stuffup.
Wrong idea on users part, or their choice to use 240 volt? :-)
It is the amperage that kills not the voltage. From memory about
10 mA through the heart can be fatal.
|>North America uses 110V and dozens of septics
Doubt that this is a misspelling of "skeptic". Cockney rhyming
slang for "Yank" is "Septic Tank" :-)
|kill themselves each year. The
|>breaker is the safety point, not a low voltage
The average house in the US does use breakers rather than fuses,
but they are likely to be 20 or 25 amp.
I believe what you might be talking about is a "earth leakage
detector" which senses any current imbalance between active and
neutral. Portable ones are available for power tool use.
The average house in the US or here doesn't have them though. Any
imbalance cuts the power before the heart stops.
For the last 3 or 4 years they have been compulsory in new
installations and new houses in NSW, at the switchboard, to
protect most outlets.
As most people are optimists, they wouldn't have them installed
if not compulsory. Most optimists are aren't safety conscious
and wont wear hardhats, helmets, safety belts, etc. unless
required by law. :-)
Cheers, |