The Cable Factory Talks About The Difference Between Copper Wire And Aluminum Wire Of Cable

The difference between copper wire and aluminum wire

1. The conductivity of copper is higher, and its conductivity is better than that of aluminum wire, but aluminum wire is cheaper, and its density is lower, and its weight is much smaller than that of copper wire. Therefore, you must choose according to your needs. Among the four materials of gold, silver, copper and aluminum, under the same conditions, the electrical conductivity is: silver→copper→gold→aluminum. Note that the same conditions referred to here mean: same length, same cross-sectional area, same temperature. These conditions are not the same and are not comparable. These properties, also known as the resistivity of the material.

2. Their English symbols are: Gold: Au; Silver: Ag; Copper: Cu; Aluminum: Al.

3. Gold and silver are too expensive to be used as conductors; copper and aluminum are good materials for conductors, but copper is not suitable for long-distance transmission lines, because of its high density and high quality (weight), it cannot be pulled over long distances ; Aluminum has a low density and can pull a long distance, but its conductivity is worse than that of copper, and it is not as good as copper. Each has its own strengths, and each has its own weaknesses.

4. The copper wire with the same cross-sectional area is two or three times higher in conductivity than the aluminum wire with the same cross-sectional area, the power that can be loaded is also high, and the volume can also be much smaller than the aluminum wire

5. If the wire is exposed at the outer ankle, it is better to use copper wire because it has better toughness. Otherwise, you can use copper core wire, but you must calculate the power consumption to choose the cross-sectional area of the wire.