Submitted by imdoingmyroutine t3_10ybgef in DIY
I am quite new with wiring and my knowledge so far basically just extends to how to safely replace sockets/stitches etc. I ran across this weird old painted over outlet at my house and am trying to replace it with the bulb socket shown in photos. I see that 2 different white wires are coming into it coming from 2 separate wires. Would love some help understanding what is going on and how i should wire up new outlet. thanks!
photos here https://imgur.com/a/YCjo42C
ProblimaticSolutions t1_j7x8rwz wrote
Well that's not confusing at all, lol.
Here's my guess: the 4 conductor wire (black/white/red/ground) is coming from the breaker box (with everything disconnected the red/black wires would be hot with the breaker on) and the 3 conductor wire (black/white/ground) feeds the rest of the circuit.
You'd want to use the red wire (hot) to the brass screw and a pigtailed* white wire (neutral) connected to the other white wires to the silver screw. Pigtail* a ground wire with the other ones and put it on the green screw. The black (hot) wires don't need to be touched.
I would also wrap those ground wires up with electrical tape and/or cover the connections on the back of the new part because with those connections being open and the ground wires not being shielded there's a good chance of creating a short as you shove everything together when you're done.
*explanation video here
Edit: Didn't think about it being a switched outlet like the other post says. Haven't had to deal with those so feel free to ignore all but the last part about eliminating the possibility of a short.