Michael Watterson wrote:
>
> 110V AC is actually about 140V peak. Building sites here have to use 
> centre tapped earth 110V AC via certified transformer for safety, which 
> would be 70V peak to ground. (Household electric here is all 220V to 
> 230V AC 50Hz).
>
>   
These are of course only approximations.

Actual exactly 110V RMS sinewave is 155.6 volts peak approximately which 
gives closer to 78V centre tapped.

It's the current that kills. So standing barefoot in salt water with 
soft skin wet with salt water grasping tightly a copper pipe connected 
to -40V is probably a lot worse than poking a 90V wire wearing dry sneakers.



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