An overhead cable is an electrical cable that is typically strung high above the ground using utility poles. In most instances, this electrical cable comes in handy when transmitting electrical power and data. Unlike most electrical cable types, this cable type is common, especially in congested residential areas. Its popularity primarily stems from the fact that they are a less expensive alternative to underground cables.
Dissimilar to most electrical wires, an overhead electrical cable is made using aluminium. As I indicated earlier, this cable type is strung high above the ground. Therefore, air offers a considerable proportion of the insulation required. It requires less insulation than underground cables, making it the most inexpensive electrical cable in the market. That being said, you need to note that there are several overhead cable types.
Choosing an ideal cable for your overhead application requires some severe considerations, especially because choosing the wrong cable type often has some profound implications. Generally, the three core parameters for the selection of an overhead power cable are;
The most common type of overhead cable is the bare aluminium cable. It often comes in handy when dealing with electric power transmission over long distances. If you intend to perform an extra-high voltage installation over a long distance, this cable type is ideal for you.
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