Neutral wire is a type of electrical wire used in alternating current (AC) circuits. It is commonly referred to as the “return” wire, as it carries the current back to the source after it has passed through the load. The neutral wire is usually connected to the earth ground at the service panel or distribution panel, which provides a reference voltage for the circuit.
Types of Neutral Wire:
- Earthed Neutral: In this type, the neutral wire is connected to the earth ground, providing a low-impedance path for fault currents to flow. This helps protect people and equipment from electric shock.
- Ungrounded Neutral: In this type, the neutral wire is not connected to the earth ground, which can be useful in certain specialized applications.
Working of neutral wire:
The neutral wire works by completing the circuit and allowing the electrical current to flow back to the source. It is connected to the grounded conductor of the power supply, typically at the service panel or distribution panel.
Advantages of neutral wire:
- Safety: Neutral wires provide a safe path for electrical current to flow back to the source, reducing the risk of electric shock and fire hazards.
- Stabilizes Voltage: The neutral wire helps stabilize the voltage. Neutral wire prevents fluctuations in the electrical system, ensuring smooth and consistent operation of electrical devices.
- Facilitates Multiple-Phase Wiring: Neutral wires facilitate the use of multiple-phase wiring, which allows for more efficient distribution of electrical power.
Disadvantages of neutral wire:
There are no significant disadvantages of using neutral wire in electrical circuits.
Applications
Neutral wires are commonly used in residential, commercial, and industrial electrical systems to complete circuits. Neutral wire provide a safe path for electrical current to flow back to the source. They are used in lighting circuits, power outlets, and other electrical devices.