Re: how does voltage from a wall plug vary with time
From: Androcles (Androcles_at_)
Date: 02/11/05
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Date: Fri, 11 Feb 2005 23:21:01 GMT
"Michael Moroney" <moroney@world.std.spaamtrap.com> wrote in message
news:cuilve$grd$2@pcls4.std.com...
> "Androcles" <Androcles@ MyPlace.org> writes:
>
>>LOL, Try 440V 3 phase in Britain, 240V RMS single phase.
>>I once got both hands behind two buss-bars at 440V
>>and managed to get off by falling off the ladder. It tingles.
>>The upside was everyone wanted me to take a break and
>>have a cup of tea. So why not?
>
> Ouch!
>
> Mathematically, the phase-phase voltage should be "only" 416 volts if
> the single phase is 240V. Or 398V if 230V. (I've seen continental
> power is usually described as being 230Y/400 volts)
Yeah... but remember we are talking nominal, actual voltages are
not exact. 415V was also quoted.
> Good thing, the extra 24V would have done you in!
LOL, yeah. It did tickle. Trouble was, my hands clenched and
gripped even tighter.
I had to take my feet of the ladder and let myself fall.
Luckily it was only a 3-4 ft drop.
I decide not to work live after that.
On another occasion we had an apprentice working, and
we'd shut down and locked the breaker off, it was 11,000V.
The kid licked his finger and touched the bus-bar to see if
it was still live. :-)
Androcles.
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