Aerial Cable / Overhead Cable: Technical Overview for Distribution Networks

Aerial Cable / Overhead Cable: Technical Overview for Distribution Networks

Aerial cable and overhead cable are used for outdoor power distribution on poles and overhead structures, covering low-voltage service drops, medium-voltage feeders, and rural or urban distribution networks. These cables are designed to withstand UV exposure, wind loading, temperature variation, and mechanical tension during installation. Common types include bare overhead conductors, insulated overhead conductors, ABC cables, and self-supporting aerial cables. ABC systems integrate phase conductors and a neutral messenger into one cable assembly, reducing installation time and improving safety compared with traditional bare conductors. Medium-voltage overhead cables typically use XLPE or weather-resistant insulation, while low-voltage aerial cables may use PVC, PE, or XLPE depending on environmental and voltage requirements. Key selection parameters include rated voltage, conductor material, cross-section, number of cores, insulation type, messenger strength, tensile load, span length, temperature rating, UV resistance, and local utility specifications. For international projects, aerial and overhead cables may reference IEC 60502, IEC 61089, EN 50395, EN 50396, and applicable national distribution standards. These cables are widely used in distribution networks, rural electrification, temporary power supply, street lighting circuits, and service connections to buildings and facilities.

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