What type of wire is used for residential?

Which cable is better to choose and why?

Most modern homes use nonmetallic (NM) cable that consists of two or more wires wrapped inside the colored sheathing mentioned previously. The package of wires usually contains one or more hot wires plus a neutral and a ground.

Advantages of Copper Cable

Superior Conductivity

Copper has significantly higher electrical conductivity than aluminum, meaning it carries electricity with less resistance and minimizes energy loss in the form of heat. This is crucial for the efficiency and safety of the installation.

Durability and Strength

Copper is stronger and more durable than aluminum. It is less susceptible to warping and breaking, reducing the risk of faulty connections and overheating.

Corrosion Resistance

Although both metals oxidize, the oxide in aluminum can negatively affect its conductivity, while copper maintains its efficiency over time.