FFinding efficient, safe, ecologically sustainable, and inexpensive solutions for power line inspections has been a major challenge for energy companies. To inspect miles of powerlines, electric companies have either used employees to climb up every pole to inspect each line, which is not only dangerous but inefficient, or employed the use of helicopters to capture the data.
Although helicopters can capture a lot of data in a single flight there are a number of drawbacks. They are expensive to run
Source: NDT
