My electrical outlet has two black wires, one white wire, and one copper ground wire. All the diagrams I have seen have indicated there should be 1 black and 1 white, or
![Electrical Wall Plug Wire Connections: white, black, ground wire identification: ribbed vs smooth zip cord wire identification Electrical Wall Plug Wire Connections: white, black, ground wire identification: ribbed vs smooth zip cord wire identification](https://inspectapedia.com/electric/Line-Cord-Plug-Wire-ID-105-DJFs.jpg)
Electrical Wall Plug Wire Connections: white, black, ground wire identification: ribbed vs smooth zip cord wire identification
![wiring - In a light switch, how can I tell if the black wire is really hot and the white wire is really neutral? - Home Improvement Stack Exchange wiring - In a light switch, how can I tell if the black wire is really hot and the white wire is really neutral? - Home Improvement Stack Exchange](https://i.stack.imgur.com/AC3wn.jpg)
wiring - In a light switch, how can I tell if the black wire is really hot and the white wire is really neutral? - Home Improvement Stack Exchange
![Old outlet has 2 black wires and 2 white. Is it safe to connect two white and two black under one screw with the new outlet? Thank you! : r/electrical Old outlet has 2 black wires and 2 white. Is it safe to connect two white and two black under one screw with the new outlet? Thank you! : r/electrical](https://i.redd.it/old-outlet-has-2-black-wires-and-2-white-is-it-safe-to-v0-brnjid63iava1.jpg?width=3024&format=pjpg&auto=webp&s=2bbfdb175b441edd553fa0efdd8e529925962474)