What Is The Meaning Of Overhead Cable?

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Generally, the term ‘overhead’ means above the level of the head or in the sky. So, in simple terms, an overhead cable is any cable that you can install above your head in the sky. Anyone who lacks electrical cable expertise may assume that any electrical wire is suitable for overhead installations. Such an assumption is wrong. Several critical features of an overhead electric cable make it ideal for ‘in the air’ setups. Any attempt to use a standard wire in place of an actual overhead one will not end in a good way. Here are some crucial features of overhead cables;

Conductor Material

For a long time, copper was also one of the material for overhead power cables. However, in recent times, aluminium has supplanted copper as the ideal conductor material. This change is primarily attributed to aluminium’s affordability and its relatively lightweight. These two features bear much significance for the cables in question.

The conductivity of aluminium is generally about 50% lower than that of copper. Nonetheless, manufacturers make up for this inadequacy by using a greater diameter of the conductor. As is the case with standard cables, an increase in the diameter of a conductor raises its overall conductivity. So, even though aluminium is a relatively poor conductor, the overall conductivity of an overhead cable is pretty high. Other critical features of this

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