On 25/05/10 19:24, Tony Duell wrote:
And then of
course there are the ever-present "Please do not touch" signs...
Whcih IMHO are useless. The clueful know not to stick their fingers in an
unknown machine, the clueless probably can'r read, or if they can't think
the sign doesn't apoply to them.
In which case they deserve the Darwin Award. Although sticking your
fingers on a marked, live AC connector is probably not quite inventive
enough to get a DA.
I'd probably run the machines in question off of RCD (aka GFCI,
PowerBreaker) adapters, just in case someone did find a live point that
wasn't covered up... ~10mA for the few milliseconds it takes for a
PowerBreaker to trip is less likely to do lasting damage than the 5-6
seconds it'd take for me to get up, grab the mains plug and yank it out
of the socket (13A plugs tend to be quite stiff compared to, say, IECs,
and not all machines are fitted with IEC sockets).
Though if the idiot turned round and said "your machine electrocuted me"
I'd be quick to point out that:
1) If it had electrocuted them, they'd be dead
2) There was a "Live parts, please don't touch, danger of death,
etc." sign on the desk
3) The live parts were marked and covered, and that pushing one's
finger around the cover to touch a live part of the machine wasn't an
especially smart idea
4) They'd be best advised to at least make an attempt to learn from
the experience and BLOODY WELL NOT DO IT AGAIN.
I do not suffer fools gladly.
--
Phil.
classiccmp at philpem.me.uk
http://www.philpem.me.uk/