Underground Electrical Cabling is Better Than Overhead Lines
Lately, considerable discussion has been dedicated to the likelihood of laying underground electrical cables rather than overhead cables, to decrease visual impact. Many distribution systems operators have introduced underground cables in numerous regions.
Though installation of underground cables is more expensive as compared to overhead cables, underground cabling is still preferred especially in urban areas. There are fundamental reasons as to why electrical engineers are choosing this method of cabling. The following are some of the reasons:
There are dangers associated with working close to any sort of power line. However, underground cables are less dangerous to technicians and the public since they are protected, encompassed by a shield and normally buried around one to three meters inside a solid conduit. Overhead lines can be dangerous if the structures/wires tumble to the ground and/or are accidentally touched.
In general, overhead lines can need more repair, through wear and tear because they are exposed to very hot and very cold temperatures. They are though, much easier to repair as their access is easy. Since underground cables are buried safely, there is a less chance of them being damaged and they last much longer.
Right- of- Way
If an underground link is laid underneath an urban road then the right-of-way would be the road itself thus saving space. If the underground cable is not laid besides the roadway, the right-of-way would be taking into account the measure of space required for installment and repair activities to be safely carried out. Ordinarily around 10 to 15 meters in width is required. An easement agreement would be required to guarantee vehicle access and prevent changes in surface grade or the erection of additional structures.