When choosing between underground cables or overhead power lines, it is important to know the advantages and disadvantages so that you can better make an educated decision. Between the two, overhead power lines are more common and with good reason.
Although some may consider them as an eyesore, especially in urban areas, in terms of their cost three to four times less than the underground infrastructure. If you want to know the technique of installing underground electrical conduit online then you can get redirected here https://tradetechservices.com.au/electrical-pits-trenching-boring/.
Underground cables may require additional insulation and cooling because the wires can overheat otherwise. Also, the cable will probably longer route between the two lines, unlike the overhead cable in which the cable will only but over homes and buildings.
When burying cables in rocky areas, for example, you need to clean up the site with sharp stones and big and filled with soil to avoid damaging the cable. The reason it is quite expensive because you need to install cable jointing structures every 500 meters as well as additional insulation.
As already stated, the electrical wires radiate heat so they should be kept away from the marshes, swamps, and drainage. You also have to go around the plant or building rooted with deep foundations.
It is also not known whether there are effects to the ground if the plastic sheath on the cable wiring had rotted. Not to say that it could not be done, however, such as the Singapore cable system is 100% underground.