4-wire porcelain pull-chain
Hi! Long-time reader, first-time poster.
I've got an issue. I need to replace an old porcelain pull-chain in my 30-year old copper-wired house with a new one with a three-pronged outlet. However, when I went to take down the fixture, I saw that there are four screw terminals (two wired with hot, two wired with neutral) on the back of the fixture, as opposed to just two! Every fixture at the home center has just two screw terminals! What do I do? If you guys can help, that'd be great!
Also, the other porcelain fixture in my house was wired with just two wires (hot and neutral) but has a three-pronged outlet with nothing attached to the ground screw (but a metal electrical box). Is this dangerous?