(hex) writes:


[...]

left to be removed. There are still some systems used in various
particle and nuclear physics experiments that have a similar feature
300A @ 5V supplies with the terminals spaced about 1cm apart -- scary.

but not *so* easy to touch, and at least here at CERN you are supposed
to add a wrning sign "Danger, extra low voltage". But if you consider
the dangers of an ordinary power cable: If you touch a loose end with
your bare finger you will get a small burn (maybe) and jerk it away,
but the ring might cause the short-circuit current to flow, which can
easily reach a few thousand amps before the breaker kicks in.


It's easier to take the ring off for WW before the accident than
after. That act, however, does not recuse one from being careful.

Much better not to wear any rings or oher jewelry at all, since danger
lurks everywhere and bites often when least expected, and the jewelry
never helps you: If you are beautiful by yourself it only distracts,
if not it only makes you attractive to thieves...

--
Dr. Juergen Hannappel http://lisa2.physik.uni-bonn.de/~hannappe
Phone: +49 228 73 2447 FAX ... 7869
Physikalisches Institut der Uni Bonn Nussallee 12, D-53115 Bonn, Germany
CERN: Phone: +412276 76461 Fax: ..77930 Bat. 892-R-A13 CH-1211 Geneve 23