What does the term "hot" refer to in electrical wiring?

The term "hot" refers specifically to the wire that carries electrical current in a circuit. This wire is energized and is responsible for delivering power to various electrical devices and systems. In most wiring systems, the "hot" wire is typically color-coded (often black or red in North American standards) to distinguish it from other wires, such as the neutral and ground wires, which have different functions and color codes.

Understanding the role of the hot wire is critical for safe electrical practices. It is essential for both installation and troubleshooting tasks within a marine electrical system, as it helps to ensure that devices are connected correctly and that electricity can flow as intended, facilitating operation without risking safety hazards.