🚀 go-pugleaf

In sci.electronics, pollock@milton.u.washington.edu (Joe Pollock) writes:
> In contrast, a neon sign transformer is typically 6000 - 15000 vac,
> rated to put out 30-60 ma.  Keep in mind that these transformers are
> center-tapped, meaning the mid-point of the secondary is connected to
> the case (and to ground, if you've wired it correctly).  This means
> that THE ONE-HAND IN THE POCKET RULE WILL NOT PROTECT YOU.  Each end
> of the transformer is 7500 vac above ground.  Unless you are very
> well insulated, like on dry wood on glass insulators, you will get
> a shock in at least the "dangerous," if not "lethal," range.

The one hand in the pocket rule is not meant to keep you from getting
zapped.  No matter how the secondary of a neon sign transformer is
wired, and how many hands you keep in your pocket, it is always
possible to get a very serious shock.  What the hand-in-the-pocket
rule is designed to do is to keep you from doing something REALLY
stupid like leaning one hand on the case while touching a hot lead.
This would cause a high voltage path up one arm, through the heart,
and down the other arm -- a much more deadly path than through your
shoes to ground.

--Mike Jassowski (maj@hpesmaj.fc.hp.com)