Aerial Bunched Cables (Aerial Bundled Cable or simply ABC) are Overhead Power Lines. Usually, in this cable several insulated phase conductor are bundled together tightly with a bare neutral conductor.
This thing makes a slight difference between normal uninsulated conductor, which have an air gap, and ABC. In Air Bunched Cable, type of overhead transmission, the principle is same as of bundled conductor. In Air Bunched Cable, these conductors are very close to their point of touching but conductors are surrounded by Insulator layer.
Though, in case of neutral conductor it is not covered with an insulator.

Aerial Bunched Cables (Aerial Bundled Cable or simply ABC) are Overhead Power Lines. Usually, in this cable several insulated phase conductor are bundled together tightly with a bare neutral conductor.
This thing makes a slight difference between normal uninsulated conductor, which have an air gap, and ABC. In Air Bunched Cable, type of overhead transmission, the principle is same as of bundled conductor. In Air Bunched Cable, these conductors are very close to their point of touching but conductors are surrounded by Insulator layer.
Though, in case of neutral conductor it is not covered with an insulator.