Aerial bundled cables (also ABC) are overhead power lines using several insulated phase conductors bundled tightly together, usually with a bare neutral conductor. This contrasts with the traditional practice of using uninsulated conductors separated by air gaps.

Wires are applied for transmission of electric power in aerial electric networks, in the air atmosphere, if the sulphur dioxide contents is not more than 15 mg/ m³ on the land of all the macroclimatic regions. In moister climates, tree growth is a significant problem for overhead power lines. Aerial bundled cables will not arc over if touched by tree branches. Although persistent rubbing is still a problem, tree-trimming costs can be reduced.

However the cables can stand in close proximity to trees and will not generate sparks if touched, simpler installation, as crossbars and insulators are not required, less cluttered appearance, at junction poles, insulating bridging wires are needed to connect non-insulated wires at either side. ABC can dispense with one of these splices.

AC, AAC , AFL6 (8) aluminum wire, right-hand stranded, each upper layer is stranded in opposite direction in relation to the underlying one, the direction of stranding of the uppermost layer is right-hand, the galvanized steel single wire or multi-wire

ACSR steel core wire, bare grade hard-drawn aluminium conductors stranded an inner core of galvanized steel wire

Cu kl.2 copper wires, right-hand stranded, each upper layer is stranded in opposite direction in relation to the underlying one, the direction of stranding of the uppermost layer is right-hand

ABC, NFA2X 0,6/1kV aluminium conductor with breaking load, round stranded compacted, core insulation, 2 or 4 cores of equal crosssection are stranded together in left-hand lay, additionally 1 or 2 cores of reduced cross section can be co-stranded

AMKA 0,6/1kV (bare alloy) aluminium conductor, round stranded compacted (RM), core insulation, 3 cores of equal cross section and the neutral conductor stranded together in tight-hand lay, additionally 1 core of reduced cross section can be co-stranded