Overhead ABC (Aerial Bundled Cable) is a type of low‑ and medium‑voltage power distribution cable designed to be installed above ground on poles rather than buried underground. Unlike traditional bare conductors, an overhead ABC uses insulated phase conductors that are twisted (bundled) together, often around a neutral or messenger conductor. This configuration improves safety, reduces short‑circuit risk from tree branches or contact, and simplifies installation in congested or difficult terrain.The typical construction of overhead ABC cable includes several aluminum conductors, each insulated with cross‑linked polyethylene (XLPE) or similar weather‑resistant polymer. The number of cores usually ranges from two to five, depending on whether the system is single‑phase or three‑phase and whether a neutral or street‑lighting conductor is required. In many designs, a bare or insulated messenger made of aluminum‑alloy or galvanized steel provides mechanical support and sometimes serves as the neutral conductor.Mechanical strength and weather resistance are key design considerations. The cable must withstand wind, ice loading, temperature variation, ultraviolet radiation, and mechanical vibration. The insulating sheath is formulated to resist cracking, tracking, and degradation under prolonged outdoor exposure. Aluminum is the preferred conductor material because it offers a good balance of conductivity, low weight, and corrosion resistance, helping to keep line tension and pole loading within acceptable limits.Overhead ABC is widely used in urban, suburban, and rural distribution networks. In cities and towns with narrow streets and dense construction, bundled insulated conductors reduce the required safety clearances and the risk of accidental contact with buildings, balconies, or signage. In rural and forested areas, the insulation provides improved reliability where tree branches may touch the lines or fall on them during storms. This can significantly reduce outages compared to bare overhead conductors.From a safety perspective, the insulated design lowers the likelihood of phase‑to‑phase and phase‑to‑ground faults caused by vegetation, wildlife, or wind‑induced conductor clashing. It also reduces the chance of electrical accidents involving the public and maintenance personnel. Despite these advantages, proper clearances, earthing practices, and protection devices remain essential for safe operation.Installation of overhead ABC is generally simpler and faster than constructing equivalent underground systems. The cable can be strung on existing pole routes with fewer insulators and cross‑arms, which can reduce material and labor costs. It is particularly suitable for network modernization and for supplying power in areas where excavation is difficult, environmentally sensitive, or highly disruptive to traffic.In addition, overhead ABC supports network aesthetics and planning. Bundled insulated conductors present a more compact and orderly appearance than multiple bare conductors on cross‑arms. This can be important in residential neighborhoods and tourist areas where visual impact matters. The combination of safety, reliability, ease of installation, and reduced right‑of‑way requirements makes overhead ABC a widely adopted solution in modern distribution systems.