Table of Contents
Why is aluminium used for overhead cables instead of copper?
Whilst an aluminium conductor is only about 61\% as conductive as the same sized copper conductor it is also three times lighter in weight which makes it much easier to handle. For this reason aluminium finds favour in large size cables and cables for overhead power distribution.
Why are overhead cables made from aluminum?
Aluminum provides a better conductivity to weight ratio than copper, and therefore is also used for wiring power grids, including overhead power transmission lines and local power distribution lines, as well as for power wiring of some airplanes.
Why is aluminium used in transmission lines?
Aluminum is having low density, high ductility, good corrosion resistance and good conductivity, which makes it suitable to use as electric conductor for transmission and distribution of electricity.
Can I use aluminum wire instead of copper?
Aluminum Wire Pros and Cons Aluminum wire is generally easier to use than copper because it’s lighter and more malleable, making it an ideal wiring material to use over long distances.
What is the difference between copper and aluminium conductor?
Copper wire is heavier, and aluminum is lighter and silver grey. The other main difference between copper and aluminum wires is the resistance of the material. Copper not only has a higher conductivity than aluminum, but is more ductile, with relatively high tensile strength, and can be soldered.
Why is aluminum today’s choice of metal for overhead transmission line conductors versus copper or some other metal?
Aluminum is much lighter than copper. The density of aluminum is very less it is about 30 \% of the copper. The great advantage of aluminum is that by weight, the conductivity of aluminum is around twice that of copper. This means that aluminum is now the most commonly used material in large power transmission lines.