Which materials may be used as current carrying conductors?

The selection of materials that can be used as current-carrying conductors is critical for ensuring electrical systems operate safely and efficiently. Copper, aluminum, and copper-clad aluminum are all recognized for their conductivity properties, making them suitable materials for this purpose.

Copper is well-known for its excellent conductivity, resistance to corrosion, and durability. These attributes make it a preferred choice for many electrical applications, including wiring and components.

Aluminum, while not as conductive as copper, is lighter and often less expensive, making it a viable option for some applications, especially in overhead power lines where weight is a significant concern. Its utility is further enhanced with proper size adjustments to compensate for its lower conductivity compared to copper.

Copper-clad aluminum combines the advantageous properties of both materials, offering the lightweight benefit of aluminum while providing the superior surface conductivity of copper. This combination allows for reduced weight while maintaining good electrical performance, making it suitable for a variety of applications.

In contrast to these materials, steel is primarily used for structural supports like conduits and is not a common choice for current-carrying conductors due to its poor conductivity. Brass, while conductive, does not typically serve as a primary conductor in electrical installations and is often used for specific components like terminals or