The Aerial Cable System consist of a set of accessories. This structure is composed of: steel cables, anchor insulators, covered conductors and spacers (diamond or vertical) made of polymer material.
In addition, its support is made through the wire rope, called the messenger. It is fixed to the post by means of metal arms.
Polymer spacers perform the function of holding and electrical separation of the coated conductors.
The Aerial Cable System for distribuition is certainly an excellent solution for harmonious coexistence between power cables and afforestation of public roads.
As a result, it becomes a technically and economically viable solution to meet green guidelines.
The conductors are covered by a layer of insulating material, which enables them to be closer to each other and close to the tree branches without the risk of short circuiting if they touch each other.
This results in the compactness of the power grid, which occupies a very small space and consequently less aggression to the trees (reduces pruning).
In the case of a conventional bare conductor network, contacting trees with any conductors, especially if they are wet, will short circuit and interrupt the power supply.
The aerial cable systems should be considered as the first option of use, in detriment of the conventional bare net that can only be applied in primary stretches of up to 100m, since the adjacent net is of the conventional bare type.
In addition, in areas with low vegetative growth and hard-to-reach crossings (eg highways), the application of bare conventional network should be considered in project planning.
AERIAL CABLE SYSTEM APPLICATION
Thus, the protected compact distribution network is indicated in places where there is a need for better reliability and safety indices of electrical installations, greater network compaction or better coexistence with trees, such as:
