"George Patterson" wrote in message news:%plkh.1281$Ej7.937@trnddc02...
Be careful anyway. I had a plumbing leak a month or so back that put water into
one of my power strips. It tripped the GFCI, just like it was supposed to do. I
cleaned up and dried everything out (I thought) and reset the GFCI. Everything
was up and running and I was feeling a little better when I noticed that the
power strip was spitting out sparks. GFCI units aren't infallible.

Well, this was not fault of GFCI - they cannot detect short between
line and neutral. They are only sensitive to the current leakage
from line to ground. More precise: they trip when the current in the
white wire does not equal the current in the black wire - the difference
happens only when the current is leaking to ground - it is that simple.