5 Facts about Power Cables that You Were Unaware Of
Power cables form the fundamental component of any and every electrical system. There are different types of cables that are available in the market. The choice of which particular cable type should be used for specific purposes is based on various factors, the most important of them being the technical specifications of the functions.
Copper may not always be a better conductor than Aluminium
Even though Copper is always considered a much better conductor of electricity than aluminium by most people, this thought does not hold true every time. For instance, in cases where there is a need to use super-high voltages over long distances, it is economical to use aluminium cables instead of those made of copper.
The cable current capacity does not always remain stable
A common misconception that people hold about electrical cables is that their current cable capacity will remain stable forever. However, the fact is that over the lifetime of the cables, the cable current capacity undergoes numerous changes and does not remain stable at all. These changes are a result of the existing ground or air temperature, as well as the depth and the manner in which the cables have been laid.
New power cables don’t last as long as people expect them to
Even though we expect newly installed power cables to last as long as possible, the reality is that the extent to which a cable lasts relies on the manner in which the installation is done. This means that a poorly done installation is bound to shorten the life of a cable.
Cable armor can cause damage to the cable rather than provide protection
The armor doesn’t guarantee protection to the cable. The cable armor being made of steel tape/steel wire instead causes the tensile measure of the cables to increase. So, if any type of power cable is exposed to any form of physical stress, the impact is likely to be aggravated by the armor.
The cable armor can’t protect electric cables from moisture
Another misconception among people is that the inclusion of the armor for any power cable type makes it possible for the cables to be used in moist areas. The fact is that the armor is not meant for protecting the cable from water. Exposing armored cables to water may rather destroy the armor.You may install power cables of any material depending on your needs but always keep safety at the forefront. A faulty installation of cables can lead to accidents. Don’t forget to contact your local building inspector before carrying out any electrical installation project.
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