What are the wires on the distribution box called

The wires coming out of a distribution box are generally called branch circuit wires, which include hot (live), neutral, and ground conductors.

Overview

The wires exiting a distribution box, also known as a distribution board or breaker panel, are responsible for carrying electrical power from the main supply to various circuits throughout a building. These wires are typically categorized into three main types: Hot (Live) Wires: These carry current from the distribution board to the connected devices or outlets. They are usually color-coded black, red, or brown depending on regional standards.

Neutral Wires: These complete the electrical circuit by returning current back to the distribution board. They are commonly color-coded white or blue. Ground (Earth) Wires: These provide a safe path for stray electricity to prevent electric shocks and are usually bare copper or green/yellow striped.

Function

Each wire type serves a specific purpose in ensuring safe and efficient electricity distribution: Hot wires deliver power to appliances, lighting, and outlets. Neutral wires maintain circuit continuity and balance the electrical load. Ground wires protect users and equipment by directing fault currents safely to the earth.

Additional Notes

The wires are connected to the distribution board via busbars and circuit breakers, which control and protect each branch circuit. In residential setups, these wires typically exit the panel through conduits or cable entries to reach individual rooms or devices. Proper identification and color coding are crucial for safety and compliance with electrical codes.