Eero Ahonen <aer### [at] removethiszbxtnetinvalid> wrote:
> Again, dunno why US uses 60Hz, but 50Hz is less lethal (ie. you need
> more current to distract your heart) than 60Hz. This has something to do
> with 60Hz almost syncing to some multiply of normal, health heartbeat.
> Don't remember the details (I was told this at school something like 12
> years ago).

Doesn't make much sense to me. Normal healthy heartbeat is roughly 1 Hz, with a
wide variation depending on circumstances.

Both 50 and 60 Hz are of course exact multiples of 1.

I guess that if there is a significant difference in lethality, it's probably
because at higher frequencies an AC supply provides a bit more actual power (if
I'm not mistaken, that is).

Post a reply to this message