In recent years, the use of self-supporting cables has increased significantly in Iran. Due to the use of aluminum instead of copper in these cables, it can cause problems if technical issues are not followed and standard self-supporting cable fittings are not used.
For the first time, these cables were used in France, and due to the representation of other countries, the use of self-supporting cables also flourished in Iran.
Perhaps one of the reasons for using self-sustaining cables is the high price of copper, which makes the cost of copper cables much higher.
Disadvantages of using self-supporting cable
The use of self-supporting cables also has disadvantages, which can be mentioned as high losses, which will lead to more electricity wastage.
Due to the long exposure of the cable under the sun and the heat and cold of different seasons, the insulation coating of the cable cracks, and during rain, the amount of outages is much higher than before and causes many problems.
Another issue that has caused problems with the use of these self-sustaining cables is the connection of the network and copper wire to the self-sustaining and aluminum cable, the presence of these two metals together causes high corrosion and in a short period of time this corrosion causes a power outage. to be
Advantages of using self-supporting cable
- Significant reduction of undistributed energy
- Loss reduction by eliminating leakage current in trees and equipment
- Greater freedom of action in the design of lines due to the reduction of the distance of self-supporting cables
The possibility of beautifying a city by hiding the self-supporting cables from public view by passing the cable over the wall or hiding it in special channels.