Wireing? i hold a cieling pale that have 2 wires.they are both black? so how do i know which one is hot and which is...
so how do i know which one is hot and which is ground?
Answers: use a meter and touch lone end to one of the black wires and the other to the metal box or conduit. If i.e. hot, you will get a reading on your meter. Repeat near the other line. If both are hot later you have a 208 or 220 2 chain circuit.
borrow a multimeter