- Yes, in a standard electrical system, you’ll often see three connections: 1. **Hot (Live)** – This wire carries the electrical current from the power source. It’s typically **black** (or sometimes red). 2. **Neutral (Cold)** – This wire completes the circuit by returning the current to the source. It’s typically **white**. 3. **Ground** – This is a safety wire that provides a path for excess electricity to go into the earth if something goes wrong. It’s usually **green or bare copper**.