quote:

Originally posted by ensigmatic:

quote:

Originally posted by Leemur:
The only things downstream of the outlet in question were a light and a space heater.

If the space heater was running at the time, it was the space heater that did it. Space heaters draw lots of power. The arcing you heard wasn't from that wire/terminal combination to the adjacent one. It was between that wire and its own terminal--due to the poor connection.