On Mar 14, 11:32*pm, Davej wrote:
On Mar 14, 7:46 pm, (Charles Bishop) wrote:

I was repairing some landscaping lighting, and when I took the cover off
of the outdoor junction box, water came out. Don't know how much was in
there, maybe 1/4 to 1/2 cup. I'm guessing it wasn't enough to reach the
wiring connections, held together by wire nuts, or maybe it did.

How did the water get in?

Because if it had, the breaker would have tripped, right?

Only if it had a GFCI and the water caused current flow in the ground
wire.

The current flow does not have to be in the ground wire. In fact, a
GFCI doesn't need a ground wire at all to work. The GFCI trips when
it senses an imbalance between the currents in the hot and neutral,
meaning some current is going somewhere else. In this case, it would
trip if current was flowing from a wet connection to earth.