Colored balls
Well, those glass disks aren’t that easy to see from afar, important as they are. However, the colored balls on the high-voltage cables can be spotted from a great distance. Take a look below to see how big they are: then you will immediately understand why they are still recognizable from hundreds of meters away. In the past mainly red balls were used, but nowadays orange is the standard. You will undoubtedly be able to spot the balls in different colors if you really pay attention.
Want to know more? Then read on!